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Important Note: The following information
is provided for your education. It should not be relied upon
for personal diagnosis or treatment. If you believe that a particular
therapy applies to you or someone you care about, be sure to
consult a doctor before trying it.
Alcoholic Liver Disease
Research:
2002-2006
J Clin Gastroenterol. 2006 Oct;40(9):833-841.
Acute Alcoholic Hepatitis.
Ceccanti M, Attili A, Balducci G, Attilia F, Giacomelli S, Rotondo C, Sasso GF,
Xirouchakis E, Attilia ML.
*Alcohol Liver Disease Unit daggerII Gastroenterology Unit, University "La
Sapienza", Roma, Italy double daggerIstituto Superiore di Sanita, Roma, Italy
section sign1st IKA Hospital Gastroenterology Unit, Athens, Greece.
Acute alcoholic hepatitis (AAH) is a frequent inflammatory liver disease with
high short-term mortality rate. In this review, relationships between alcohol
abuse and the epidemiology and the outcomes of AAH are discussed, as well as AAH
pathogenesis. The role of endotoxins, tumor necrosis factor alpha, fibroblasts,
and immune response to altered hepatocyte proteins is discussed. The need of a
careful prognosis, supported by the use of Maddrey score, by the model for
end-stage liver disease [Mayo end-stage liver disease (MELD)] score or by the
Glasgow alcoholic hepatitis score, is outlined, as the use of the most effective
drugs (glucocorticoids and anti-tumor necrosis factor alpha infliximab) is
recommended only in severe AAH cases. The problems of liver transplant in severe
AAH, and the need of a 6-month alcohol abstinence before transplant, are
discussed, as well as the need of a careful psychologic assessment before the
transplant.
-----
Aliment Pharmacol Ther. 2006 Oct 15;24(8):1151-61.
Review article: alcoholic liver disease--pathophysiological
aspects and risk factors.
Gramenzi A, Caputo F, Biselli M, Kuria F, Loggi E, Andreone P, Bernardi M.
Dipartimento di Medicina Interna, Cardioangiologia ed Epatologia, Universita di
Bologna, Policlinico S. Orsola, Via Massarenti 9, 40138 Bologna, Italy.
BACKGROUND: Alcoholic liver disease has a known aetiology but a complex and
incompletely known pathogenesis. It is an extremely common disease with
significant morbidity and mortality, but the reason why only a relatively small
proportion of heavy drinkers progress to advanced disease remains elusive. AIM:
To recognize the factors responsible for the development and progression of
alcoholic liver disease, in the light of current knowledge on this matter.
METHODS: We performed a structured literature review identifying studies
focusing on the complex pathogenetic pathway and risk factors of alcoholic liver
disease. Results In addition to the cumulative amount of alcohol intake and
alcohol consumption patterns, factors such as gender and ethnicity, genetic
background, nutritional factors, energy metabolism abnormalities, oxidative
stress, immunological mechanisms and hepatic co-morbid conditions play a key
role in the genesis and progression of alcoholic liver injury. CONCLUSIONS:
Understanding the pathogenesis and risk factors of alcoholic liver disease
should provide insight into the development of therapeutic strategies.
-----
Br J Anaesth. 2006 Oct;97(4):496-8. Epub 2006 Jul 18.
One year outcome of intensive care patients with decompensated
alcoholic liver disease.
Mackle IJ, Swann DG, Cook B.
Department of Anaesthesia, Critical Care and Pain Management, The Royal
Infirmary of Edinburgh at Little France 51 Little France Crescent, Old Dalkeith
Road, Edinburgh EH16 4SA, UK.
BACKGROUND: We aimed to examine the outcome of patients with decompensated
alcoholic liver disease (ALD) admitted to a general intensive care unit (ICU).
METHODS: Retrospective observational cohort study of intensive care admissions
over a 3 yr period was conducted. The study was set in an ICU in a UK university
hospital with a tertiary liver referral unit. One hundred and ten admissions,
involving 107 patients, with decompensated ALD were included. Intensive care,
hospital, and 6 and 12 months mortality were recorded along with the outcome in
diagnostic and organ system support subgroups. Intensive care, hospital, 6 month
and 12 month mortality rates were 58, 71, 78 and 81%. RESULTS: Hospital
mortality in the sepsis/multiorgan failure group was 88%. Sixty-nine per cent of
patients who were ventilated but required no other organ support survived to
hospital discharge. However, the requirement for any other organ support, or a
raised creatinine (>120 mumol litre(-1)) in the first 24 h, reduced the hospital
survival to <15%. In those patients requiring acute renal replacement therapy,
the hospital mortality was 94%. CONCLUSION: Decompensated ALD requiring
intensive care admission is associated with a high hospital mortality and
consideration should be given to the futility of escalating organ support
measures, particularly when renal replacement therapy is required.
-----
Rev Med Suisse. 2006 Sep 6;2(77):1974-8.
[Clinical management of a patient with alcoholic cirrhosis]
[Article in French]
Nguyen-Trang T, Hadengue A, Spahr L.
Service de gastroenterologie et d'hepatologie, HUG, 1211 Geneve 14.
Prolonged abstinence from alcohol is crucial in the management and prognosis of
a patient with alcoholic cirrhosis. It is also important to prevent
complications such as variceal bleeding, hepatocellular and extrahepatic
cancers, and malnutrition. Liver transplantation should be considered in
patients with persistent liver failure in spite of complete cessation of alcohol
consumption. We provide some recommendations in commonly encountered clinical
situations for compensated and decompensated alcoholic cirrhosis.
-----
Methods Mol Biol. 2006;333:29-46.
Current status of liver transplantation.
Friend PJ, Imber CJ.
Nuffield Department of Surgery, John Radcliffe Hospital, Oxfordshire, Oxford,
England.
Liver transplantation has become the treatment of choice for a wide range of
end-stage liver disease. As outcomes have improved, so the demand for this
therapy has increasingly exceeded the availability of donor organs. Access to
liver transplantation is controlled such that donor organs are generally
allocated to the patients who are likely to benefit most, although if all
patients who might benefit were placed on the waiting list, the donor shortage
would be greatly increased. Recurrence of the original liver disease is emerging
as an important issue. Fewer patients are transplanted for liver tumors, as
earlier results showed a very high rate of recurrence. In recent years there has
been a change in the underlying conditions of patients on the waiting list, and
a preponderance of patients now present with hepatitis C and alcoholic
cirrhosis. Increasingly, transplant units are looking to sources of donor organs
that would previously have been deemed unsuitable--such marginal donors include
non-heart-beating donors (NHBDs). Results from controlled NHBDs--those cases in
which cardiac arrest is predicted--suggest that this is a good source of viable
organs. Splitting a donor liver to provide two grafts has successfully enabled
the transplantation of a child and an adult from one organ. The transplantation
of two adults from a single organ remains a greater challenge. Transplantation
from living donors has been practiced increasingly over the last decade,
although anxieties have been expressed over donor safety. In many countries this
now represents a significant contribution to overall liver transplant activity.
-----
Hepatology. 2006 Sep;44(3):521-6.
Global challenges in liver disease.
Williams R.
UCL Institute of Hepatology, Division of Medicine, Royal Free and University
College Medical School, London, UK. roger.williams@ucl.ac.uk
Immigration, cheap air travel, and globalization are all factors contributing to
a worldwide spread of hepatitis B virus (HBV) and hepatitis C virus (HCV)
infection. End-stage chronic liver disease (ESLD) as a result of co-infection
with HBV/HCV is now the major cause of death for individuals who have been
infected with the HIV virus. The high incidence of HCV infection in Egypt--the
legacy left from the mass use of tartar emetic to eradicate schistosomiasis, as
in other high prevalence areas--will take years to reduce. Steatohepatitis due
to non-alcoholic fatty liver disease is developing into a new and major health
problem as a result of rising levels of obesity in populations worldwide.
Hepatic steatosis also has an adverse influence on the progression of other
liver diseases including chronic HCV infection and alcoholic liver disease. In
many countries, considerable public concern is on the rise due to increased
levels of alcohol consumption adversely affecting younger and affluent age
groups. With the rising prevalence of cirrhosis, primary hepatocellular
carcinoma (HCC) is increasing in frequency as is that of primary intrahepatic
cholangiocarcinoma. Finally, despite the successes of liver transplantation,
many deserving patients are not getting transplants due to low levels of cadaver
organ donation in many countries, thereby increasing pressures on the use of
living donor liver transplantation. Only through a concerted effort from
governments, health agencies, healthcare professionals at all levels, and the
pharmaceutical industry can this grim outlook for liver disease worldwide be
reversed.
-----
Alcohol Alcohol. 2006 Jul-Aug;41(4):358-63. Epub 2006 Apr 24.
Liver transplantation for alcoholic liver disease: a systematic
review of psychosocial selection criteria.
McCallum S, Masterton G.
Department of Psychiatry, Queen Margaret Hospital, Whitefield Road, Dunfermline,
Fife KY12 0RG, Scotland. seonaid.mccallum@faht.scot.nhs.uk
AIMS: To examine the evidence base for psychosocial selection criteria for liver
transplant candidates with alcoholic liver disease. METHOD: Systematic review
using three electronic databases supplemented by hand searches. RESULTS: Out of
96 published studies, 22 were included. All but one were cohort design, most
were retrospective, single centre, and small sample. Methodology varied
considerably, such that meta-analysis was not feasible. CONCLUSIONS: Social
stability, no close relatives with an alcohol problem, older age, no repeated
alcohol-treatment failures, good compliance with medical care, no current
polydrug misuse, and no co-existing severe mental disorder have all been
associated with future abstinence in more studies than not, in those that
examined these variables. Duration of preoperative abstinence was a poor
predictor. We recommend that, if predicting future abstinence is considered
necessary by transplant teams, a standardized approach is agreed and deployed
amongst transplant units, then audited and reviewed.
-----
Nutr Clin Pract. 2006 Jun;21(3):245-54.
Nutrition in alcoholic liver disease.
DiCecco SR, Francisco-Ziller N.
William J. von Liebig Transplant Center, Mayo Clinic Rochester, 201 W. Center
Street, Rochester, MN 55902, USA. dicecco.sara@mayo.edu
Liver disease secondary to alcohol ranges from alcoholic fatty liver disease to
acute hepatitis to cirrhotic liver disease. It is imperative that alcohol be
discontinued to allow for any potential improvement in liver function, with most
benefit being seen in the early stages of the disease. Alcoholic liver disease
has a profound effect on nutrient intake, nutrition status, and metabolism,
contributing to a high prevalence of malnutrition in this population. Early
intervention with nutrition therapy may improve response to treatment, alleviate
symptoms, and improve quality and quantity of life. In this review, nutrition
assessment parameters and medical nutrition therapy goals for alcoholic liver
disease are discussed.
-----
Am J Gastroenterol. 2006 Jun;101(6):1370-8. Erratum in: Am J Gastroenterol. 2006
Aug;101(8):1944.
Recurrence of diseases following orthotopic liver
transplantation.
Kotlyar DS, Campbell MS, Reddy KR.
University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104,
USA.
Long-term graft survival and mortality after liver transplantation continue to
improve. However, disease recurrence remains a major stumbling block, especially
among patients with hepatitis C. Chronic hepatitis C recurs to varying degrees
in nearly all patients who undergo transplantation. Transplantation for
hepatitis C is associated with higher rates of graft failure and death compared
with transplantation for other indications, and retransplantation for hepatitis
C related liver failure remains controversial. Recurrence of hepatitis B has
been markedly reduced with improved prophylactic regimens. Further, rates of
hepatocellular carcinoma recurrence have also decreased, as improved patient
selection criteria have prioritized transplantation for those with a low risk of
recurrence. Primary biliary cirrhosis recurs in some patients, but it is often
relatively mild. Autoimmune liver disease has also been shown to have a
relatively benign post-transplantation course, but some studies have indicated
that it slowly progresses in most recipients. It has been recently reported that
alcoholic liver disease liver transplant recipients who return to drinking have
worsened mortality. In such patients worse outcomes are not due to graft
failure, but instead to other comorbidities. Recurrences of other diseases,
including nonalcoholic steatohepatitis and primary sclerosing cholangitis, are
now being recognized as having potentially detrimental effects on graft survival
and mortality. Expert clinical management may help prevent and treat
complications associated with disease recurrence.
-----
Alcohol. 2006 May-Jun;41(3):278-83. Epub 2006 Feb 13.
Predictors of relapse to harmful alcohol after orthotopic liver
transplantation.
Kelly M, Chick J, Gribble R, Gleeson M, Holton M, Winstanley J, McCaughan GW,
Haber PS.
Drug Health Services, Royal Prince Alfred Hospital, Missenden Road, Camperdown,
NSW 2050, Australia. phaber@mail.usyd.edu.au.
BACKGROUND: End-stage alcoholic liver disease (ALD) is a common indication for
liver transplantation. Outcomes may be limited by return to harmful drinking.
Previous studies have identified few predictors of drinking relapse. AIM: This
study examined novel postulated predictors of relapse to drinking. METHOD: The
case notes of all patients transplanted for ALD at the Royal Prince Alfred
Hospital from 1987-2004 were reviewed. Pre-transplant characteristics were rated
by a psychiatrist independent of the transplant team, blind to the outcome.
Outcomes were rated by a second independent alcohol treatment specialist also
blind to the pre-transplant ratings. RESULTS: Of 100 patients, 6 died before
discharge from hospital, 4 had <6 months follow-up, 18 relapsed to harmful
drinking, 10 drank below harmful levels, and 62 remained abstinent after a mean
of 5.6 years follow-up. Univariate analyses identified six potential
pre-transplant predictors of return to harmful drinking. These were a diagnosis
of mental illness (of which all cases were of depression), the lack of a stable
partner, grams per day consumed in the years before assessment for transplant,
reliance on 'family or friends' for post-transplant support, tobacco consumption
at time of assessment, and lack of insight into the alcohol aetiology. Duration
of pre-transplant abstinence and social class by occupation did not predict
relapse. A multivariate model based on the above characteristics correctly
predicted 89% of the outcomes. CONCLUSION: A model based on readily defined
behaviours and psychosocial factors predicted relapse to harmful drinking after
transplant for ALD. This model may improve assessment and post-transplant
management of patients with advanced ALD.
-----
Curr Opin Gastroenterol. 2006 May;22(3):263-71.
Alcohol and the liver.
Reuben A.
Liver Service, Division of Gastroenterology/Hepatology and Liver Transplant
Program, Medical University of South Carolina, Charleston, 29425, USA. reubena@musc.edu
PURPOSE OF REVIEW: To apprise the reader of advances in 2005 in the
epidemiology, pathogenesis, prognosis and treatment of alcoholic liver disease.
Alcohol use has declined in developed countries, but the opposite is true
elsewhere; alcoholic liver disease is a considerable burden worldwide. RECENT
FINDINGS: Genetic mechanisms for alcoholic liver disease are being discovered in
addition to aggravating cofactors, such as hepatitis C, obesity and iron
overload, and ameliorating ones, like coffee and tea drinking. The involvement
of the innate immune system and the mechanisms of apoptosis in alcoholic liver
disease are better appreciated, especially the emerging role of tumor necrosis
factor-related apoptosis-inducing ligand (TRAIL). Steroid use and nutrition for
alcoholic hepatitis are being refined, and the validity of the model for
end-stage liver disease (MELD) score in predicting the outcome of alcoholic
liver disease is upheld. Recidivism after liver transplantation for alcoholic
liver disease adversely impacts long-term survival. SUMMARY: Inroads are being
made into the genetics of alcoholic liver disease and new phenomena are being
uncovered in its pathogenesis, but safe and effective therapies for both
alcoholic hepatitis and alcoholic cirrhosis are still wanting.
-----
Alcohol Alcohol. 2006 Apr 24; [Epub ahead of print]
Liver transplantation for alcoholic liver disease:
a systematic review of psychosocial selection criteria.
McCallum S, Masterton G.
Department of Psychiatry, Queen Margaret Hospital, Fife, Scotland.
AIMS: To examine the evidence base for psychosocial selection criteria for liver
transplant candidates with alcoholic liver disease. METHOD: Systematic review
using three electronic databases supplemented by hand searches. RESULTS: Out of
96 published studies, 22 were included. All but one were cohort design, most
were retrospective, single centre, and small sample. Methodology varied
considerably, such that meta-analysis was not feasible. CONCLUSIONS: Social
stability, no close relatives with an alcohol problem, older age, no repeated
alcohol-treatment failures, good compliance with medical care, no current
polydrug misuse, and no co-existing severe mental disorder have all been
associated with future abstinence in more studies than not, in those that
examined these variables. Duration of preoperative abstinence was a poor
predictor. We recommend that, if predicting future abstinence is considered
necessary by transplant teams, a standardized approach is agreed and deployed
amongst transplant units, then audited and reviewed.
-----
Cochrane Database Syst Rev. 2006 Apr 19;(2):CD002235.
S-adenosyl-L-methionine for alcoholic liver diseases.
Rambaldi A, Gluud C.
BACKGROUND: Alcohol is a major cause of liver disease and disrupts methionine
and oxidative balances. S-adenosyl-L-methionine (SAMe) acts as a methyl donor
for methylation reactions and participates in the synthesis of glutathione, the
main cellular antioxidant. Randomised clinical trials have addressed the
question whether SAMe may benefit patients with alcoholic liver diseases.
OBJECTIVES: To evaluate the beneficial and harmful effects of SAMe for patients
with alcoholic liver diseases. SEARCH STRATEGY: We searched The Cochrane
Hepato-Biliary Group Controlled Trials Register (May 2005), The Cochrane Central
Register of Controlled Trials in The Cochrane Library (Issue 2, 2005), MEDLINE
(1950 to May 2005), EMBASE (1980 to May 2005), and Science Citation Index
Expanded (searched May 2005). SELECTION CRITERIA: We included randomised
clinical trials studying patients with alcoholic liver diseases. Interventions
encompassed per oral or parenteral administration of SAMe at any dose versus
placebo or no intervention. DATA COLLECTION AND ANALYSIS: We performed all
analyses according to the intention-to-treat method using RevMan Analyses
provided by the Cochrane Collaboration. We evaluated the methodological quality
of the randomised clinical trials by quality components. MAIN RESULTS: We
identified nine randomised clinical trials including a heterogeneous sample of
434 patients with alcoholic liver diseases. The methodological quality regarding
randomisation was generally low, but 8 out of 9 trials were placebo controlled.
Only one trial including 123 patients with alcoholic cirrhosis used adequate
methodology and reported clearly on all-cause mortality and liver
transplantation. We found no significant effects of SAMe on all-cause mortality
(relative risks (RR) 0.62, 95% confidence interval (CI) 0.30 to 1.26),
liver-related mortality (RR 0.68, 95% CI 0.31 to 1.48), all-cause mortality or
liver transplantation (RR 0.55; 95% CI 0.27 to 1.09), or complications (RR 1.35,
95% CI 0.84 to 2.16), but the analysis is based mostly on one trial only. SAMe
was not significantly associated with non-serious adverse events (RR 4.92; 95%
CI 0.59 to 40.89) and no serious adverse events were reported. AUTHORS'
CONCLUSIONS: We could not find evidence supporting or refuting the use of SAMe
for patients with alcoholic liver diseases. We need more long-term, high-quality
randomised trials on SAMe for these patients before SAMe may be recommended for
clinical practice.
-----
Curr Opin Crit Care. 2006 Apr;12(2):171-7.
The management of severe alcoholic liver disease and variceal
bleeding in the intensive care unit.
Berry PA, Wendon JA.
Institute of Liver Studies, Kings College Hospital, London, UK.
PURPOSE OF REVIEW: To address recent advances in the understanding and
management of alcohol-related chronic liver disease and its acute complications.
RECENT FINDINGS: Refinements have been made in the prognosis and treatment of
alcoholic hepatitis, and new insights have been gained into the pathophysiology
of the hepatorenal syndrome. Further trial evidence has emerged concerning
therapy in the hepatorenal syndrome, and there has been some clarification of
the benefits and risks relating to albumin dialysis/extracorporeal liver
support, and consensus in the early management of variceal haemorrhage. SUMMARY:
Recent developments have led to modifications in the standard of care of
patients with severe alcoholic liver disease, many of which are highly
applicable to the general critical care setting. These changes apply
specifically to alcoholic hepatitis, the hepatorenal syndrome and variceal
bleeding, common conditions with a high mortality rate, upon which changes in
practice can have a significant impact.
-----
Dig Dis. 2005;23(3-4):275-84.
Treatment of alcoholic liver disease.
Bergheim I, McClain CJ, Arteel GE.
Department of Pharmacology and Toxicology, University of Louisville Health
Sciences Center, Louisville, KY 40292, USA.
Alcoholic liver disease (ALD) remains a major cause of morbidity and mortality
worldwide. For example, the Veterans Administration Cooperative Studies reported
that patients with cirrhosis and superimposed alcoholic hepatitis had a 4-year
mortality of >60% (worse than many common cancers such as breast and prostate).
The cornerstone for therapy for ALD is lifestyle modification, including
drinking cessation and treatment of decompensation, if appropriate. Nutrition
intervention has been shown to play a positive role on both an in-patient and
out-patient basis. Corticosteroids are effective in selected patients with
alcoholic hepatitis, and treatment with pentoxifylline appears to be a promising
anti-inflammatory therapy. Recent studies have indicated anti-TNFalpha therapy,
at least for alcoholic hepatitis. Some complementary and alternative medicinal
agents, such as milk thistle and S-adenosylmethionine, may be effective in
alcoholic cirrhosis. Treatment of the complications of ALD can improve the
quality of life and, in some cases, decrease short-term mortality. Copyright
2005 S. Karger AG, Basel.
-----
Alcohol Clin Exp Res. 2005 Dec;29(12 Suppl):259S-63S.
Difference and similarity between non-alcoholic steatohepatitis
and alcoholic liver disease.
Kojima H, Sakurai S, Uemura M, Takekawa T, Morimoto H, Tamagawa Y, Fukui H.
Third Department of Internal Medicine, Nara Medical University, Japan. kojima@nmu.gw.naramed-u.ac.jp
BACKGROUND: Non-alcoholic steatohepatitis (NASH) and alcoholic liver disease (ALD)
are extremely similar in the pathologic findings and pathogenesis. This study
aimed to elucidate the difference and similarity between these diseases.
METHODS: Twenty-six patients with NASH and 26 with ALD including 11 with
alcoholic hepatitis underwent clinico-pathologic analysis. The visceral fat area
and liver/spleen ratio, an index of the hepatic fat content, were evaluated with
computed tomography. The hepatic iron deposit and oxidative stress induced-lipid
peroxidation were estimated by Prussian blue staining and 3-nitrotyrosine
staining, respectively. RESULTS: The most prominent difference between NASH and
ALD was the nutritional status, although elevation of AST/ALT ratio and gamma-GT
is relatively characteristic of ALD. NASH was more frequently associated with
diabetes mellitus as compared with ALD. The BMI and serum levels of total
cholesterol and cholinesterase were higher in NASH than in ALD. Although the
degree and distribution of fibrosis and necro-inflammatory reaction were similar
in NASH and ALD, steatosis was more severe in NASH than in ALD. The liver/spleen
ratio was lower and the visceral fat area was larger in NASH than in ALD,
regardless of the coincidence of alcoholic hepatitis. Interestingly, the
visceral fat area positively correlated with ALT and HOMA-IR in NASH, whereas
these correlations were not observed in ALD. The hepatic iron deposit was less
in NASH than in ALD, whereas lipid peroxidation in NASH was similar to that in
ALD with alcoholic hepatitis and more advanced as compared with that in ALD
without alcoholic hepatitis. CONCLUSIONS: NASH was characterized with
over-nutrition and visceral fat type obesity as compared with ALD. The visceral
fat accumulation was associated with hepatic inflammation and insulin resistance
in NASH, but not in ALD. The difference in the nutritional status between NASH
and ALD is not only reflected in the clinical features but also may closely
associate with the mechanisms of hepatocellular damage in these diseases.
-----
Alcohol Clin Exp Res. 2005 Nov;29(11 Suppl):162S-5S.
Glycine as a therapeutic immuno-nutrient for alcoholic liver
disease.
Yamashina S, Ikejima K, Enomoto N, Takei Y, Sato N.
>From the Department of Gastroenterology (SY, KI, NE, YT, NS), Juntendo
University School of Medicine, Tokyo, Japan.
Activation of Kupffer cells by gut-derived endotoxin is an important factor in
ethanol hepatotoxicity. Further, it was shown that ethanol modulates both the
expression and activity of several intracellular signaling molecules and
transcription factors in Kupffer cells and chronic ethanol treatment enhances
Kupffer cell sensitivity to endotoxin. These findings suggest that inhibition of
Kupffer cell activation is effective for clinical application in alcoholic
hepatitis. Recently, accumulating lines of evidence suggest a possibility that
glycine is useful as an immuno-modulating amino acid. It has been shown that a
diet containing glycine improved survival in endotoxin shock by preventing
Kupffer cell activation. Glycine most likely prevents the LPS-induced elevation
of intracellular Ca concentration in Kupffer cells, thereby minimizing LPS
receptor signaling and cytokine production. Indeed, glycine prevents
alcohol-induced liver injury in a long-term enteral ethanol feeding rats
(Tsukamoto-French) by decreasing production of TNF-alpha in the liver. Moreover,
glycine is protective against apoptosis of sinusoidal endothelial cells (SECs)
that is one of the initial events in the development of liver injury. On the
other hand, epidemiologic data have identified chronic alcohol consumption as a
significant risk factor for carcinogenesis. Interestingly, glycine inhibits
growth of tumor in vivo most likely because of the inhibition of angiogenesis.
It was shown that the inhibitory effect of glycine on growth and migration of
endothelial cells is due to activation of a glycine-gated Cl channel. It is
hypothesized that the opening of this anion channel hyperpolarizes the cell
membrane, blocks influx of Ca through voltage-dependent Ca channel, thereby
blunting growth factor-mediated signaling. Therefore, glycine can be used not
only for treatment of alcoholic hepatitis, but also for chemoprevention and
treatment of hepatocellular carcinoma in alcoholic cirrhosis. Taken together, it
is concluded that glycine is a potent therapeutic immuno-nutrient for various
kinds of chronic liver diseases including alcoholic liver disease (ALD).
-----
Am J Gastroenterol. 2005 Nov;100(11):2583-91.
Milk thistle for alcoholic and/or hepatitis B or C liver
diseases--a systematic cochrane hepato-biliary group review with meta-analyses
of randomized clinical trials.
Rambaldi A, Jacobs BP, Iaquinto G, Gluud C.
Copenhagen Trial Unit, Center for Clinical Intervention Research, Rigshospitalet,
Copenhagen University Hospital, Denmark.
OBJECTIVES: Our objectives were to assess the beneficial and harmful effects of
milk thistle (MT) or MT constituents versus placebo or no intervention in
patients with alcoholic liver disease and/or hepatitis B and/or C liver
diseases. METHODS: Randomized clinical trials studying patients with alcoholic
and/or hepatitis B or C liver diseases were included (December 2003). The
randomized clinical trials were evaluated by components of methodological
quality. RESULTS: Thirteen randomized clinical trials assessed MT in 915
patients with alcoholic and/or hepatitis B or C liver diseases. The
methodological quality was low: only 23% of the trials reported adequate
allocation concealment and only 46% were considered double blind. MT versus
placebo or no intervention for a median duration of 6 months had no significant
effects on all-cause mortality (relative risk (RR) 0.78, 95% confidence interval
(CI) 0.53-1.15), complications of liver disease, or liver histology.
Liver-related mortality was significantly reduced by MT in all trials (RR 0.50,
95% CI 0.29-0.88), but not in high-quality trials (RR 0.57, 95% CI 0.28-1.19).
MT was not associated with a significantly increased risk of adverse events.
CONCLUSIONS: Based on high-quality trials, MT does not seem to significantly
influence the course of patients with alcoholic and/or hepatitis B or C liver
diseases. MT could potentially affect liver injury. Adequately conducted
randomized clinical trials on MT versus placebo may be needed.
-----
Liver Transpl. 2005 Nov;11(11 Suppl 2):S21-4.
Is alcoholic hepatitis an indication for transplantation? Current
management and outcomes.
Mathurin P.
Service d'Hepatogastroenterologie Hopital Claude Huriez and Equipe mixte INSERM
0114, CHU Lille, France. p-mathurin@chrulille.fr
1. In the absence of treatment, 50% of patients with severe alcoholic hepatitis
(AH) [Maddrey function (DF) >or= 32] die 2 months later. Among patients with
severe AH treated by corticosteroids, 80% had 2-month survival. Pentoxifylline
is considered by some investigators to be an alternative option to
corticosteroids. 2. Non-responders to corticosteroids (NRCs) have poor survival
and require new strategies. Liver transplantation should be considered in order
to improve survival of non-responders to therapeutic agents. 3. Prognostic
models such as the Model for End-Stage Liver Disease (MELD) and DF are useful
tools for predicting short-term mortality of patients with severe AH. Specific
models taking into account the particular settings of treated patients are
warranted. 4. In an era of organ shortage, use of liver transplants in patients
with severe AH may negatively affect the public attitude on transplantation and
organ donation, and may cause reluctance on the part of clinicians to modify
guidelines for alcoholic patients. 5. Therefore, a reasonable approach would be
to carry out only pilot studies on only a small cohort of patients to determine
whether transplantation improves survival in patients with severe AH.
-----
Rocz Akad Med Bialymst. 2005;50:7-20.
Pathogenesis and treatment of alcoholic liver disease: progress
over the last 50 years.
Lieber CS.
Alcohol Research and Treatment Center, Section of Liver Disease and Nutrition,
Bronx VA Medical Center, New York 10468, USA. liebercs@aol.com
Fifty years ago the dogma prevailed that alcohol was not toxic to the liver and
that alcoholic liver disease was exclusively a consequence of nutritional
deficiencies. We showed, however, that liver pathology developed even in the
absence of malnutrition. This toxicity of alcohol was linked to its metabolism
via alcohol dehydrogenase which converts nicotinamide adenine dinucleotide (NAD)
to nicotinamide adenine dinucleotide-reduced form (NADH) which contributes to
hyperuricemia, hypoglycemia and hepatic steatosis by inhibiting lipid oxidation
and promoting lipogenesis. We also discovered a new pathway of ethanol
metabolism, the microsomal ethanol oxidizing system (MEOS). The activity of its
main enzyme, cytochrome P4502E1 (CYP2E1), and its gene are increased by chronic
consumption, resulting in metabolic tolerance to ethanol. CYP2E1 also detoxifies
many drugs but occasionally toxic and even carcinogenic metabolites are
produced. This activity is also associated with the generation of free radicals
with resulting lipid peroxidation and membrane damage as well as depletion of
mitochondrial reduced glutathione (GSH) and its ultimate precursor, namely
methionine activated to S-adenosylmethionine (SAMe). Its repletion restores
liver functions. Administration of polyenylphosphatidylcholine (PPC), a mixture
of unsaturated phosphatidylcholines (PC) extracted from soybeans, restores the
structure of the membranes and the function of the corresponding enzymes.
Ethanol impairs the conversion of beta-carotene to vitamin A and depletes
hepatic vitamin A and, when it is given together with vitamin A or
beta-carotene, hepatotoxicity is potentiated. Our present therapeutic approach
is to reduce excess alcohol consumption by the Brief Intervention technique
found to be very successful. We correct hepatic SAMe depletion and
supplementation with PPC has some favorable effects on parameters of liver
damage which continue to be evaluated. Similarly dilinoleoylphosphatidylcholine
(DLPC), PPC's main component, also partially opposes the increase in CYP2E1 by
ethanol. Hence, therapy with SAMe +DLPC is now being considered.
-----
Cochrane Database Syst Rev. 2005 Oct 19;(4):CD002800.
Propylthiouracil for alcoholic liver disease.
Rambaldi A, Gluud C, Rambaldi A.
BACKGROUND: Randomised clinical trials have addressed the question whether
propylthiouracil has any beneficial effects in patients with alcoholic liver
disease. OBJECTIVES: To assess the beneficial and harmful of propylthiouracil
for patients with alcoholic liver disease. SEARCH STRATEGY: The Cochrane
Hepato-Biliary Group Controlled Trials Register (May 2005), The Cochrane Central
Register of Controlled Trials in The Cochrane Library (Issue 2, 2005), MEDLINE
(1950 to May 2005), EMBASE (1980 to May 2005), and The Web of Science (May 2005)
were searched. These electronic searches were combined with full text searches.
Manufacturers and researchers in the field were also contacted. SELECTION
CRITERIA: Randomised clinical trials studying patients with alcoholic steatosis,
alcoholic fibrosis, alcoholic hepatitis, and/or alcoholic cirrhosis were
included irrespective of blinding, publication status, or language.
Interventions encompassed propylthiouracil at any dose versus placebo or no
intervention. DATA COLLECTION AND ANALYSIS: All analyses were performed
according to the intention-to-treat method in RevMan Analyses. The
methodological quality of the randomised clinical trials was evaluated by
components (generation of the allocation sequence; allocation concealment;
double blinding; follow-up). MAIN RESULTS: Combining the results of six
randomised clinical trials including 710 patients demonstrated no significant
effects of propylthiouracil versus placebo on all-cause mortality (relative
risks (RR) 0.93, 95% confidence interval (CI) 0.66 to 1.30), liver-related
mortality (RR 0.80, 95% CI 0.50 to 1.29), complications of the liver disease, or
liver histology. Propylthiouracil was associated with a non-significant
increased risk of non-serious adverse events and with the seldom occurrence of
serious adverse events (leukopenia). AUTHORS' CONCLUSIONS: We could not
demonstrate any significant beneficial effect of propylthiouracil on all-cause
mortality, liver-related mortality, liver complications, and liver histology of
patients with alcoholic liver disease. Propylthiouracil was associated with
adverse events. Confidence intervals were wide. Accordingly, there is no
evidence for using propylthiouracil for alcoholic liver disease outside
randomised clinical trials.
-----
Cochrane Database Syst Rev. 2005 Oct 19;(4):CD002800.
Propylthiouracil for alcoholic liver disease.
Rambaldi A, Gluud C, Rambaldi A.
BACKGROUND: Randomised clinical trials have addressed the question whether
propylthiouracil has any beneficial effects in patients with alcoholic liver
disease. OBJECTIVES: To assess the beneficial and harmful of propylthiouracil
for patients with alcoholic liver disease. SEARCH STRATEGY: The Cochrane
Hepato-Biliary Group Controlled Trials Register (May 2005), The Cochrane Central
Register of Controlled Trials in The Cochrane Library (Issue 2, 2005), MEDLINE
(1950 to May 2005), EMBASE (1980 to May 2005), and The Web of Science (May 2005)
were searched. These electronic searches were combined with full text searches.
Manufacturers and researchers in the field were also contacted. SELECTION
CRITERIA: Randomised clinical trials studying patients with alcoholic steatosis,
alcoholic fibrosis, alcoholic hepatitis, and/or alcoholic cirrhosis were
included irrespective of blinding, publication status, or language.
Interventions encompassed propylthiouracil at any dose versus placebo or no
intervention. DATA COLLECTION AND ANALYSIS: All analyses were performed
according to the intention-to-treat method in RevMan Analyses. The
methodological quality of the randomised clinical trials was evaluated by
components (generation of the allocation sequence; allocation concealment;
double blinding; follow-up). MAIN RESULTS: Combining the results of six
randomised clinical trials including 710 patients demonstrated no significant
effects of propylthiouracil versus placebo on all-cause mortality (relative
risks (RR) 0.93, 95% confidence interval (CI) 0.66 to 1.30), liver-related
mortality (RR 0.80, 95% CI 0.50 to 1.29), complications of the liver disease, or
liver histology. Propylthiouracil was associated with a non-significant
increased risk of non-serious adverse events and with the seldom occurrence of
serious adverse events (leukopenia). AUTHORS' CONCLUSIONS: We could not
demonstrate any significant beneficial effect of propylthiouracil on all-cause
mortality, liver-related mortality, liver complications, and liver histology of
patients with alcoholic liver disease. Propylthiouracil was associated with
adverse events. Confidence intervals were wide. Accordingly, there is no
evidence for using propylthiouracil for alcoholic liver disease outside
randomised clinical trials.
-----
Curr Med Res Opin. 2005 Sep;21(9):1337-46.
Alcoholic hepatitis: from pathogenesis to treatment.
Sougioultzis S, Dalakas E, Hayes PC, Plevris JN.
Department of Hepatology, The Royal Infirmary of Edinburgh and University of
Edinburgh, UK.
Alcoholic hepatitis is a serious complication of alcohol abuse due to its high
mortality rates particularly at short term. It may complicate pre-existing
alcoholic fatty liver or cirrhosis and is mainly diagnosed on clinical and
laboratory grounds although liver biopsy is occasionally needed to exclude other
pathology and confirm the diagnosis. Accumulating evidence suggests that
cytokines and immunity are actively involved in its pathogenesis. Management
includes abstinence and supportive care. Treatment with corticosteroids has been
studied in several clinical trials with conflicting results. However, recent
evidence supporting the beneficial effect of TNF-alpha inhibition provides an
encouraging alternative. Here we summarise the current state in diagnosis and
management of alcoholic hepatitis and briefly review the latest advances in
pathophysiology that may lead to new therapeutic strategies for this difficult
clinical condition. Data sources: Medline 1966-2005, EMBASE/Excerpta Medica
1980-2005, The Cochrane Library (2005 Issue 2) and contact with authors of
published reports.
-----
Rev Prat. 2005 Sep 30;55(14):1539-48.
[Liver cirrhosis in adults: etiology and specific treatments]
[Article in French]
Fartoux L, Serfaty L.
Service d'hepatologie, hopital Saint-Antoine, 75571 Paris. laetitia.fartoux@sat.ap-hop.paris.fr
Cirrhosis is the result of chronic inflammation and of the progressive increase
of fibrosis. In France, hepatitis C infection is the second cause of cirrhosis
after alcohol abuse. The other causes of cirrhosis are: hepatitis B infection,
genetic haemochromatosis, autoimmune hepatitis, primary biliary cirrhosis,
drug-induced cirrhosis, secondary biliary cirrhosis, Wilson's disease and al-antitrypsin
deficiency. Etiological treatment is based upon: abstinence in case of alcoholic
cirrhosis, the combination of pegylated interferon alpha (PEG IFN) with
ribavirin in case of C viral cirrhosis, the PEG IFN and the nucleoside analogs
in case of B viral cause; corticosteroids and immunosuppressive drugs in case of
autoimmune cirrhosis; venesections in case of genetic haemochromatosis and
stopping the drug in case of drug-induced cirrhosis. The complications of
cirrhosis such as ascites, oesophageal varices, bleeding, hepatic encephalopathy
and hepatocellular carcinoma mainly explain the high rate of morbidity and
mortality. Liver transplantation is the established therapy for decompensated
liver disease of any etiology significantly changed the outcome of patients with
advanced cirrhosis.
-----
Rev Med Suisse. 2005 Sep 7;1(31):2026-8, 2030-1.
[Alcoholic and nonalcoholic steatohepatitis: the same disease! I.
Diagnosis and mechanisms]
[Article in French]
Spahr L, Rubbia-Brandt L, Hadengue A.
Service de gastroenterologie et d'hepatologie, Hopitaux universitaires de Geneve.
Laurent.Spahr@hcuge.ch
Alcoholic steatohepatitis includes steatosis, inflammatory changes and
hepatocellular damage. In severe form, jaundice and hepatic failure persist for
several weeks, while non severe alcoholic steatohepatitis may follow an
insidious course towards cirrhosis. Except for alcohol consumption, nonalcoholic
steatohepatitis shares histological features and pathogenic mechanisms with
alcoholic steatohepatitis, and is associated to the development of cirrhosis
over time. Thus, given the increasing epidemics of the metabolic syndrome in
industrialized countries, it is likely that alcoholic cirrhosis has been
overdiagnosed in the past years. Obesity, insulin resistance and the oxidative
stress including iron-mediated oxidative stress are involved both in alcoholic
and non-alcoholic steatohepatitis.
-----
Scand J Gastroenterol. 2005 Aug;40(8):972-9.
Magnesium supplementation and muscle function in patients with
alcoholic liver disease: a randomized, placebo-controlled trial.
Aagaard NK, Andersen H, Vilstrup H, Clausen T, Jakobsen J, Dorup I.
Department of Medicine V, Aarhus University Hospital, Arhus, Denmark. niels@as.aaa.dk
OBJECTIVE: The study was undertaken in order to evaluate the effect of magnesium
(Mg) supplementation on muscle contents of Mg, muscle strength, muscle mass and
sodium, potassium pumps (Na,K-pumps) in patients with alcoholic liver disease.
Retrospectively, patients were also stratified according to spironolactone
treatment. MATERIAL AND METHODS: The study comprised a placebo-controlled,
randomized trial in which 59 consecutive patients with alcoholic liver disease
were treated with Mg intravenously and orally (12.5 mmol daily) or placebo for 6
weeks. Muscle content of Mg, maximum isokinetic muscle strength, skeletal muscle
mass and muscle content of Na,K-pumps were measured before and after Mg
supplementation. RESULTS: Muscle Mg did not increase during the trial (paired
t-test), but Mg supplementation and the duration of pre-study spironolactone
treatment were independent predictors of muscle Mg (multiple regression). Muscle
strength increased by 14% during the trial (p<0.001) and muscle mass increased
by 11% (p=0.05), but with no difference between placebo and Mg treatment.
Spironolactone treatment was associated with a 33% increase in the content of
Na,K-pumps (p<0.001). CONCLUSIONS: Six weeks of Mg supplementation did not
increase muscle Mg, although Mg supplementation and spironolactone treatment
were independent predictors of muscle Mg. The intervention had no effect on
muscle strength and mass, but both increased during the study, probably owing to
the general care and attendance to the patients.
-----
Transplant Proc. 2005 Jul-Aug;37(6):2614-5.
Mycophenolate mofetil monotherapy in liver transplantation.
Pierini A, Mirabella S, Brunati A, Ricchiuti A, Franchello A, Salizzoni M.
Liver Transplantation Centre, Molinette Hospital, Turin, Italy.
AIM: Calcineurin inhibitors (CI) are associated with significant morbidity in
transplant recipients. The aim of this study was to evaluate the effectiveness
and safety of mycophenolate mofetil (MMF) monotherapy in liver transplantation
(LT). METHODS: We analysed 32 patients (24 males, 8 female, of mean age 55.7
years) who underwent LT between 1994 and 2003. In 29 patients immunosuppressive
therapy was cyclosporine; in three patients it was tacrolimus. Eleven patients
were submitted for LT due to hepatitis B cirrhosis; eight for hepatitis C
cirrhosis, six for alcoholic cirrhosis, and seven for other diseases. In these
patients, MMF was added gradually, simultaneously reducing the dosage of CI up
to complete withdrawal. We considered the efficacy (decrease in serum creatinine)
and the incidence of complications (acute and chronic rejection, leukopenia,
diarrhea). RESULTS: Patients were converted to MMF after a median of 50 months
after LT. MMF monotherapy was started after a median of 9 months in association
with CI. Indications for switch to MMF monotherapy were adverse effects of CI
(renal disfunction in 30 patients) and de novo tumoral evidence after LT in two
patients. Median dosage of MMF was 750 mg twice daily (500-1500 mg). There was a
statistically significant decrease in serum creatinine levels (2.02-1.7 mg/dL; P
= .0001). Side effects were: leukopenia in five of 32 patients (15.6%), diarrhea
in four of 32 patients (12.5%), and one acute rejection. CONCLUSION: MMF
monotherapy improved renal function and was not associated with a significant
risk of allograft rejection. Side effects were mild with dose regimens up to 750
mg twice daily.
-----
Eur J Gastroenterol Hepatol. 2005 Jul;17(7):759-62.
Bilirubin response to corticosteroids in severe alcoholic
hepatitis.
Morris JM, Forrest EH.
Victoria Infirmary, Department of Gastroenterology, Glasgow, UK.
INTRODUCTION: There is little consensus on the management of alcoholic
hepatitis, particularly with regard to corticosteroid therapy. We aimed to
identify those patients who respond to corticosteroid therapy for alcoholic
hepatitis. METHODS: We identified 37 patients with alcoholic hepatitis with a
modified Maddrey's discriminant function of 32 or greater. We assessed their
outcomes at 28 and 56 days treatment after admission relative to their response
to corticosteroid treatment. RESULTS: Corticosteroid treated patients
experienced a change in the serum bilirubin concentration after 6-9 days of
-23.0+/-4.7%. Overall, the mortality was 18.9 and 35.1% at 28 and 56 days.
Response to corticosteroids was defined as a 25% fall in serum bilirubin after
6-9 days of treatment. The mortality of the non-responders was 36.8% and 57.9%
at 28 and 56 days compared with 0% (P=0.0148) and 11.1% (P=0.0084) for
corticosteroid responders. CONCLUSIONS: Patients with a 25% fall in bilirubin
after 6-9 days of corticosteroid therapy have a significant and sustained
improvement in outcome.
-----
J Clin Gastroenterol. 2005 Jul;39(6):540-3.
Beneficial effects of a probiotic VSL#3 on parameters of liver
dysfunction in chronic liver diseases.
Loguercio C, Federico A, Tuccillo C, Terracciano F, D'Auria MV, De Simone C, Del
Vecchio Blanco C.
Department of Internistica Clinica e Sperimentale F. Magrassi e A. Lanzara,
Inter-University Research Center on Foods, Nutrition, and Gastrointestinal Tract
(CIRANAD), Second University of Naples, Naples, Italy. carmelina.loguercio@unina2.it
OBJECTIVES: To evaluate whether chronic therapy with probiotics affects plasma
levels of cytokines and oxidative/nitrosative stress parameters, as well as
liver damage, in patients with various types of chronic liver disease. PATIENTS
AND METHODS: A total of 22 nonalcoholic fatty liver disease (NAFLD) and 20
alcoholic liver cirrhosis (AC) patients were enrolled in the study and compared
with 36 HCV-positive patients with chronic hepatitis without (20, CH) or with
(16, CC) liver cirrhosis. All patients were treated with the probiotic VSL#3.
Routine liver tests, plasma levels of tumor necrosis factor alpha (TNF-alpha),
interleukin (IL)-6 and -10, malondialdehyde (MDA), and 4-hydroxynonenal (4-HNE),
S-nitrosothiols (S-NO), were evaluated on days -30, 0, 90, and 120. RESULTS:
Treatment with VSL#3 exerted different effects in the various groups of
patients: in NAFLD and AC groups, it significantly improved plasma levels of MDA
and 4-HNE, whereas cytokines (TNF-alpha, IL-6, and IL-10) improved only in AC
patients. No such effects were observed in HCV patients. Routine liver damage
tests and plasma S-NO levels were improved at the end of treatment in all
groups. CONCLUSIONS: Results of the study suggest that manipulation of
intestinal flora should be taken into consideration as possible adjunctive
therapy in some types of chronic liver disease.
-----
Eur J Gastroenterol Hepatol. 2005 Jul;17(7):759-62.
Bilirubin response to corticosteroids in severe alcoholic
hepatitis.
Morris JM, Forrest EH.
Victoria Infirmary, Department of Gastroenterology, Glasgow, UK.
INTRODUCTION: There is little consensus on the management of alcoholic
hepatitis, particularly with regard to corticosteroid therapy. We aimed to
identify those patients who respond to corticosteroid therapy for alcoholic
hepatitis. METHODS: We identified 37 patients with alcoholic hepatitis with a
modified Maddrey's discriminant function of 32 or greater. We assessed their
outcomes at 28 and 56 days treatment after admission relative to their response
to corticosteroid treatment. RESULTS: Corticosteroid treated patients
experienced a change in the serum bilirubin concentration after 6-9 days of
-23.0+/-4.7%. Overall, the mortality was 18.9 and 35.1% at 28 and 56 days.
Response to corticosteroids was defined as a 25% fall in serum bilirubin after
6-9 days of treatment. The mortality of the non-responders was 36.8% and 57.9%
at 28 and 56 days compared with 0% (P=0.0148) and 11.1% (P=0.0084) for
corticosteroid responders. CONCLUSIONS: Patients with a 25% fall in bilirubin
after 6-9 days of corticosteroid therapy have a significant and sustained
improvement in outcome.
-----
Liver Transpl. 2005 Jun;11(6):679-83.
Tobacco use following liver transplantation for alcoholic liver
disease: an underestimated problem.
DiMartini A, Javed L, Russell S, Dew MA, Fitzgerald MG, Jain A, Fung J.
Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh,
PA 15213, USA. dimartiniaf@upmc.edu
Alcohol and tobacco use commonly co-occur, with at least 90% of those with an
alcohol problem also using tobacco. Thus, 3 years ago when we discovered higher
rate of late deaths due to lung and oropharyngeal cancer in patients who had
received a transplant for alcoholic liver disease (ALD), we hypothesized that
these patients were continuing to expose themselves to tobacco after liver
transplantation (post-LTX) and that this behavior was increasing their risk for
cancer. We subsequently began a prospective investigation of post-LTX tobacco
use in patients having undergone LTX for ALD (n = 172). For 33 recipients we had
data starting from our first assessment at 3 months post-LTX and for this
subgroup we report on the details of the timing of tobacco use resumption and
the redevelopment of nicotine addiction. We found that on average more than 40%
are smoking across all time periods. ALD recipients resume smoking early post-LTX,
increase their consumption over time, and quickly become tobacco dependent.
These data highlight an underrecognized serious health risk for these patients
and demonstrate our need for more stringent clinical monitoring and intervention
for tobacco use in the pre- and post-LTX periods.
-----
J Hepatol. 2005 Jul;43(1):142-8. Epub 2005 Apr 9.
Albumin dialysis reduces portal pressure acutely in patients with
severe alcoholic hepatitis.
Sen S, Mookerjee RP, Cheshire LM, Davies NA, Williams R, Jalan R.
Liver Failure Group, Institute of Hepatology, University College London Medical
School, 69-75 Chenies Mews, London WC1E 6HX, UK.
BACKGROUND/AIMS: In patients with alcoholic hepatitis (AH), inflammation
contributes to the severity of portal hypertension. This study evaluates the
acute effects of albumin dialysis, using the Molecular Adsorbents Recirculating
System (MARS), on portal pressure in AH. METHODS: Eleven patients with AH and
portal hypertension were treated with MARS (n=8) or haemofiltration (n=3). All
patients had associated organ failure manifested by hepatic encephalopathy
(Grade 2 or more) or renal failure. Hepatic venous pressure gradient (HVPG) was
measured before, during and after the treatment session. RESULTS: A rapid
significant reduction of HVPG was observed by 6 h (falling by > or =20% in 7/8
patients, reaching 12 mmHg in 6/8), which was sustained up to 18 h after
stopping dialysis. Similar rapid sustained improvements of systemic
haemodynamics were also observed. No changes occurred in three patients
receiving haemofiltration alone. CONCLUSIONS: Albumin dialysis produces
clinically significant, acute reduction in portal pressure but the mechanism by
which this effect is achieved is not clear. Our results suggest that MARS may be
a useful adjunct in management of portal hypertension, particularly in patients
with severe AH with associated organ failure.
-----
Transpl Int. 2005 May;18(5):491-8.
Liver transplantation in alcoholic patients.
Burra P, Lucey MR.
Section of Gastroenterology, Liver Gastroenterology Transplantation, Department
of Surgical and Gastroenterological Sciences, University Hospital, University of
the Study, Padua, Italy. burra@unipd.it
Alcoholic liver disease is one of the most common causes of cirrhosis and
indications for orthotopic liver transplantation in Europe and North America.
The reluctance to transplant alcoholics stems in part from the view that
alcoholics bear responsibility for their illness. There is also the perception
that the alcoholic person is likely to relapse into alcohol use after
transplantation and thereby damage the allograft. In this review, we considered
the evaluation for and outcome of liver transplantation in alcoholics with
special attention to the specific risks of alcohol relapse, to show that
alcoholism should be considered like other co-morbid states rather than as a
moral flaw.
-----
Curr Opin Gastroenterol. 2005 May;21(3):323-30.
Alcohol and the liver.
Willner IR, Reuben A.
Liver Transplantation Division of Gastroenterology/Hepatology Medical University
of South Carolina, Charleston, 29425, USA. willneri@musc.edu
PURPOSE OF REVIEW: To highlight salient recent discoveries and results of
clinical trials in alcoholic liver disease (ALD). The burden of care for ALD
patients is hefty and the prevalence of alcohol abuse may be increasing in both
the developed and the underdeveloped world. RECENT FINDINGS: Molecular
mechanisms of alcoholism are being identified but not of the predisposition to
alcoholic liver injury, except perhaps for polymorphism of a cytotoxic T-cell
antigen. The Mayo End-stage Liver Disease (MELD) score performs well in
assessing the prognosis of ALD; serological biomarkers for predicting ALD
outcome are of uncertain value. Concomitant liver disease (e.g., obesity,
hepatitis C, and iron overload) aggravates the severity of ALD; conversely,
alcohol abuse may be a cryptic co-factor in some cases of non-alcoholic fatty
liver. For alcoholic hepatitis, nutritional support is the mainstay of
treatment; steroids are considered by some (but not all) as safe and effective
therapy, whereas manipulations of tumor necrosis factor-alpha activity have been
disappointing, or of unproven benefit at best. In liver transplantation for ALD,
methods are being devised to monitor recidivism and to ameliorate its risk and
that of co-morbid psychiatric conditions. SUMMARY: Much of the pathogenesis of
ALD has been identified and headway has been made in predicting its prognosis.
However, much remains to be done to elucidate the molecular genetics of the risk
of developing ALD and in formulating safe, effective therapies for alcoholic
hepatitis.
-----
Ann Transplant. 2005;10(1):38-43.
Wasting your organ with your lifestyle and receiving a new one?
Berlakovich GA.
Department of Transplant Surgery, University of Vienna, Austria.
gabriela.berlakovich@meduniwien.ac.at
Alcoholic liver disease is the leading cause of end-stage liver disease and the
second most common indication for liver transplantation (OLT) in the United
States and Europe, with the number of patients receiving transplants each year
representing about 5% of the estimated deaths from alcoholic cirrhosis.
Long-term patient survival rates compare favorable with those for other chronic
liver diseases. Nevertheless, there remains a certain ambivalence about the role
of OLT in patients suffering from alcoholic cirrhosis, based partly on concerns
regarding alcohol relapse and functional outcome post-transplant in an era of
donor organ shortage and priority setting. This review article focuses
especially on compliance and social rehabilitation of patients who have
undergone OLT for alcoholic cirrhosis. Furthermore, pre-transplant evaluation
and selection of potential candidates are discussed and guidelines are given to
clarify the role of OLT in the management of patients suffering from alcoholic
cirrhosis. It appears very important to mention that alcoholism is not a fault
but represents a disease, and provided that the underlying disease can be
treated, consequent disease (end-stage liver disease) should be treated, too.
-----
Cochrane Database Syst Rev. 2005 Apr 18;(2):CD003620.
Milk thistle for alcoholic and/or hepatitis B or C virus liver
diseases.
Rambaldi A, Jacobs B, Iaquinto G, Gluud C.
Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department
7102, H:S Rigshospitalet,, Copenhagen University Hospital, Blegdamsvej 9,
Copenhagen, DENMARK, DK-2100.
BACKGROUND: Alcohol and hepatotoxic viruses cause the majority of liver
diseases. Randomised clinical trials have assessed whether extracts of milk
thistle, Silybum marianum (L) Gaertneri, have any effect in patients with
alcoholic and/or hepatitis B or C virus liver diseases. OBJECTIVES: To assess
the beneficial and harmful effects of milk thistle or milk thistle constituents
versus placebo or no intervention in patients with alcoholic liver disease
and/or viral liver diseases (hepatitis B and hepatitis C). SEARCH STRATEGY:
TheCochrane Hepato-Biliary Group Controlled Trials Register, The Cochrane
Central Register of Controlled Trials, MEDLINE, EMBASE, and full text searches
were combined (December 2003). Manufacturers and researchers in the field were
contacted. SELECTION CRITERIA: Only randomised clinical trials in patients with
alcoholic and/or hepatitis B or C virus liver diseases (acute and chronic) were
included. Interventions encompassed milk thistle at any dose or duration versus
placebo or no intervention. The trials could be double blind, single blind, or
unblinded. The trials could be unpublished or published and no language
limitations were applied. DATA COLLECTION AND ANALYSIS: The primary outcome
measure was mortality. Binary outcomes are reported as relative risks (RR) with
95% confidence interval (CI). Subgroup analyses were performed with regard to
methodological quality. MAIN RESULTS: Thirteen randomised clinical trials
assessed milk thistle in 915 patients with alcoholic and/or hepatitis B or C
virus liver diseases. The methodological quality was low: only 23% of the trials
reported adequate allocation concealment and only 46% were considered adequately
double-blinded. Milk thistle versus placebo or no intervention had no
significant effect on mortality (RR 0.78, 95% CI 0.53 to 1.15), complications of
liver disease (RR 0.95, 95% CI 0.83 to 1.09), or liver histology. Liver-related
mortality was significantly reduced by milk thistle in all trials (RR 0.50, 95%
CI 0.29 to 0.88), but not in high-quality trials (RR 0.57, 95% CI 0.28 to 1.19).
Milk thistle was not associated with a significantly increased risk of adverse
events (RR 0.83, 95% CI 0.46 to 1.50). AUTHORS' CONCLUSIONS: Our results
question the beneficial effects of milk thistle for patients with alcoholic
and/or hepatitis B or C virus liver diseases and highlight the lack of
high-quality evidence to support this intervention. Adequately conducted and
reported randomised clinical trials on milk thistle versus placebo are needed.
-----
Gastroenterology. 2005 Apr;128(4):882-90.
Colchicine treatment of alcoholic cirrhosis: a randomized,
placebo-controlled clinical trial of patient survival.
Morgan TR, Weiss DG, Nemchausky B, Schiff ER, Anand B, Simon F, Kidao J, Cecil
B, Mendenhall CL, Nelson D, Lieber C, Pedrosa M, Jeffers L, Bloor J, Lumeng L,
Marsano L, McClain C, Mishra G, Myers B, Leo M, Ponomarenko Y, Taylor D, Chedid
A, French S, Kanel G, Murray N, Pinto P, Fong TL, Sather MR.
VA Long Beach Healthcare Systems, Long Beach, CA 90822, USA. timothy.morgan@med.va.gov
BACKGROUND & AIMS: Colchicine improved survival and reversed cirrhosis in
several small clinical trials. We compared the efficacy and safety of long-term
colchicine, as compared with placebo, in patients with advanced alcoholic
cirrhosis. METHODS: Five hundred forty-nine patients with advanced (Pugh B or C)
alcoholic cirrhosis were randomized to receive either colchicine 0.6 mg twice
per day (n = 274) or placebo (n = 275). Treatment lasted from 2 to 6 years. The
primary outcome was all-cause mortality. Secondary outcomes were liver-related
morbidity and mortality. Liver biopsy was requested prior to entry and after 24
months of treatment. RESULTS: Attendance at scheduled clinic visits and
adherence with study medication were similar in colchicine and placebo groups.
Alcohol intake was less than 1 drink per day in 69% of patients. In an
intention-to-treat analysis, all-cause mortality was similar in colchicine (49%)
and placebo (45%) patients (P = .371). Mortality attributed to liver disease was
32% in colchicine and 28% in placebo patients (P = .337). Fewer patients
receiving colchicine developed hepatorenal syndrome. In 54 patients with repeat
liver biopsies after 24 or more months of treatment, cirrhosis improved to
septal fibrosis in 7 patients (3 colchicine, 4 placebo) and to portal fibrosis
in 1 patient (colchicine). CONCLUSIONS: In patients with advanced alcoholic
cirrhosis, colchicine does not reduce overall or liver-specific mortality. Liver
histology improves to septal fibrosis in a minority of patients after 24 months
of treatment, with similar rates of improvement in patients receiving placebo
and colchicine. Colchicine is not recommended for patients with advanced
alcoholic cirrhosis.
-----
Clin Liver Dis. 2005 Feb;9(1):171-81.
Liver transplantation for alcoholic liver disease.
Zetterman RK.
Nebraska-Western Iowa VA Health Care System, 4101 Woolworth Avenue, Omaha, NE
68105, USA. rzetterm@unmc.edu
Patients with end-stage alcoholic liver disease should be considered for liver
transplantation. A careful pretransplant evaluation must be undertaken to assess
for both medical and psychiatric factors that will continue to require attention
following transplantation. Although most programs require at least 6 months of
ethanol abstinence before consideration of liver transplantation, there is
little evidence that this conclusively predicts a reduction in recidivism. Most
programs continue to exclude those with alcoholic hepatitis. Postoperatively,
attention to psychiatric issues, recidivism, compliance, and assessment for
tumors, especially squamous cell carcinomas, should be undertaken.
-----
Clin Liver Dis. 2005 Feb;9(1):135-49.
Long-term management of alcoholic liver disease.
Wakim-Fleming J, Mullen KD.
Case Western Reserve School of Medicine, 2580 Metrohealth Drive, Room G-632A,
Cleveland, OH 44109, USA. jwfleming@metrohealth.org
Despite the epidemics of viral hepatitis C and nonalcoholic fatty liver disease,
alcohol remains one of the major causes of liver disease. Commonly, hepatitis C
and other liver diseases are found in association with alcohol consumption. This
association in many instances is noted to accelerate the progression of liver
disease. In many respects, the long-term management of alcoholic liver disease
is not dissimilar from the long-term management of patients with cirrhosis from
other etiologies. One major element is the abstinence of alcohol use. The
ability to maintain sobriety has a major impact on the outcome of patients with
alcoholic cirrhosis because maintaining abstinence can lead to significant
regression of fibrosis and possibly early cirrhosis. Similarities in managing
patients with cirrhosis due to alcohol or cirrhosis from other causes include
vaccination to prevent superimposed viral hepatitis and screening for esophageal
varices and hepatocellular carcinoma with subsequent appropriate therapy.
-----
Hepatobiliary Pancreat Dis Int. 2005 Feb;4(1):12-7.
Treatment of patients with alcoholic liver disease.
Zhang FK, Zhang JY, Jia JD.
Liver Research Center, Beijing Friendship Hospital, Capital University of
Medical Sciences, Beijing 100050, China. frankliver@yahoo.com.cn
BACKGROUND: The proportion of alcoholic liver disease among all kinds of liver
diseases in China is increasing. Recent research has elucidated the mechanisms
of alcohol-induced liver injury and offered the prospect of advances in the
management of alcoholic liver disease. DATA RESOURCES: Searching MEDLINE
(1982-July 2004) for papers on alcoholic liver disease, especially those on the
treatment of alcoholic liver disease. RESULTS: Abstinence remains the
cornerstone of management of all forms of alcoholic liver disease. Nutritional
support therapy is also a basal treatment. Corticosteroids may be benefitial for
some severe alcoholic hepatitis. None of other measures including
anti-inflammatory agents, antioxidants or colchicine has been shown consistently
to improve the course of alcoholic liver damage. Ultimately, liver
transplantation remains an option for selected patients with liver failure due
to chronic alcoholic liver disease. CONCLUSIONS: Abstinence and nutritional
support remain the base management of alcoholic liver disease. Corticosteroid is
efficient for some severe alcoholic hepatitis. Anti-inflammatory agents and
antioxidants may be of benefit but need further studies. The efficacy of other
measures including the use of colchicine and propylthiouracil is controversial.
Liver transplantation remains an option for selected patients with liver
failure.
-----
Acta Gastroenterol Belg. 2005 Jan-Mar;68(1):19-25.
Longitudinal prospective study on quality of life and
psychological distress before and one year after liver transplantation.
Burra P, De Bona M, Canova D, Feltrin A, Ponton A, Ermani M, Brolese A, Rupolo
G, Naccarato R.
Department of Surgical and Gastroenterological Sciences, University of Padua,
Padua, Italy. burra@unipd.it
BACKGROUND: The impact of liver disease and medical complications on quality of
life (QOL) and psychological distress before and after liver transplantation
(LT) is a matter of growing interest. METHODS: In a longitudinal prospective
study, perceived QOL (LEIPAD Quality of Life test) and psychological distress
(Brief Symptom Inventory, BSI) were assessed in 25 cirrhotic patients when they
were listed for LT and 1, 3, 6 and 12 months after LT. Patients were also
evaluated for medical complications and blood levels of immunosuppressive
agents. RESULTS: Overall QOL and psychological distress improved significantly
and rapidly in most domains from the first month and up to a year after LT.
Medical complications and immunosuppressive agents did not correlate with any
changes in QOL and psychological distress after LT. When patients were divided
according to liver disease etiology: 1. HCV patients listed for LT had worse QOL
levels than the group of patients as a whole or the alcoholic liver disease (ALD)
patients; 2. HCV patients reported a significant improvement in QOL only 6 and
12 months after LT, and still suffered more psychological distress 12 months
after surgery; 3. in ALD patients, overall QOL and psychological distress
improved significantly at all follow-up points after LT; 4. HCV patients
reported a worse QOL and greater psychological distress 1 and 3 months after LT
than the group as a whole or the ALD patients (p < 0.05). CONCLUSIONS: Liver
transplantation improves QOL and psychological distress in most recipients, but
not in the early stages after LT in patients transplanted for HCV cirrhosis.
-----
Curr Treat Options Gastroenterol. 2004 Dec;7(6):451-458.
Alcoholic Hepatitis.
Agarwal K, Kontorinis N, Kontorinis N, Dieterich DT, Dieterich DT.
Department of Medicine, Mount Sinai Medical Center, One Gustave Levy Place, New
York, NY 10029-6574, USA.
Alcoholic hepatitis (AH) is a common disease associated with significant
morbidity and mortality. Most often the diagnosis is suggested by a history of
heavy alcohol excess in a patient with features of hepatic decompensation. In
its purest form, AH is a histologic diagnosis of acute hepatic inflammation in
response to alcohol. The primary objective of treatment for AH is to support
long-term alcohol abstinence and to achieve adequate nutrition with lifestyle
modification; goal setting and education are integral to long-term medical
management. Severity at presentation (calculated by way of the Maddrey score)
determines outcome. Patients with AH represent a heterogeneous group with regard
to severity and pathogenesis, with various therapeutic interventions assessed in
patients with severe AH. To date, corticosteroids have been studied most, and
despite remaining controversial, warrant a place in the treatment of selected
patients. Recent advances in unraveling the aspects of disease pathogenesis in
AH have raised the possibility of targeted therapies, such as anti-tumor
necrosis factor-a monoclonals and pentoxifylline. Orthotopic liver
transplantation is not recommended for patients with severe acute AH, as most
have an unclear long-term prognosis in the context of ongoing excess alcohol
ingestion at presentation.
-----
Eur J Gastroenterol Hepatol. 2004 Nov;16(12):1375-80.
Combining steroids with enteral nutrition: a better therapeutic
strategy for severe alcoholic hepatitis? Results of a pilot study.
Alvarez MA, Cabre E, Lorenzo-Zuniga V, Montoliu S, Planas R, Gassull MA.
Department of Gastroenterology, University Hospital Germans Trias i Pujol,
Badalona, Catalonia, Spain.
BACKGROUND: Results of a previous randomized controlled trial comparing the
outcome of patients with severe alcoholic hepatitis treated with total enteral
nutrition (TEN) or corticosteroids suggest that these treatments act through
different mechanisms and may be complementary. We report a pilot study of
combined treatment with TEN and a shorter course of steroids in patients with
severe alcoholic hepatitis. METHODS: Thirteen patients with severe alcoholic
hepatitis were treated with systemic steroids and TEN. Steroid therapy started
with 40 mg oral prednisolone daily, and was progressively tapered as soon as
both serum bilirubin and prothrombin time decreased below 50% of their baseline
values. TEN (2000 kcal, or 8374 kJ, daily) was administered throughout the
hospital stay. Patients were followed for at least 12 months or until death.
RESULTS: Tapering of prednisolone dose could be started after a mean (SD) of
15.4 (3.8) days, whereas TEN was maintained for 22 (3.8) days. TEN was tolerated
in 10 of the 13 patients. The major adverse event attributable to therapy was
hyperglycemia requiring insulin therapy, which occurred in 12 of 13 patients.
Only two patients (15%) died during the treatment period. Another patient died
within the first 2 months of follow-up. In no case was the death due to
infectious complications, despite two-thirds of patients developing infections
during the treatment period. Infections during follow-up occurred only in three
patients. CONCLUSION: This pilot study suggests that TEN associated with a short
course of steroids could be a good therapeutic strategy for severe alcoholic
hepatitis. This possibility deserves investigation in a randomized controlled
trial.
-----
Alcohol. 2004 Aug;34(1):3-8.
Role of fatty liver, dietary fatty acid supplements, and obesity
in the progression of alcoholic liver disease: introduction and summary of the
symposium.
Purohit V, Russo D, Coates PM.
Division of Metabolism and Health Effects, National Institute on Alcohol Abuse
and Alcoholism, National Institutes of Health, 5635 Fishers Lane, Room 2035,
Bethesda, MD 20892-9304, USA.
Alcoholic liver disease is a major cause of illness and death in the United
States. In the initial stages of the disease, fat accumulation in hepatocytes
leads to the development of fatty liver (steatosis), which is a reversible
condition. If alcohol consumption is continued, steatosis may progress to
hepatitis and fibrosis, which may lead to liver cirrhosis. Alcoholic fatty liver
has long been considered benign; however, increasing evidence supports the idea
that it is a pathologic condition. Blunting of the accumulation of fat within
the liver during alcohol consumption may block or delay the progression of fatty
liver to hepatitis and fibrosis. To achieve this goal, it is important to
understand the underlying biochemical and molecular mechanisms by which chronic
alcohol consumption leads to fat accumulation in the liver and fatty liver
progresses to hepatitis and fibrosis. In addition to alcohol consumption,
dietary fatty acids and obesity have been shown to affect the degree of fat
accumulation within the liver. Again, it is important to know how these factors
modulate the progression of alcoholic liver disease. The National Institute on
Alcohol Abuse and Alcoholism and the Office of Dietary Supplements, National
Institutes of Health, sponsored a symposium on "Role of Fatty Liver, Dietary
Fatty Acid Supplements, and Obesity in the Progression of Alcoholic Liver
Disease" in Bethesda, Maryland, USA, October 2003. The following is a summary of
the symposium. Alcoholic fatty liver is a pathologic condition that may
predispose the liver to further injury (hepatitis and fibrosis) by cytochrome
P450 2E1 induction, free radical generation, lipid peroxidation, nuclear
factor-kappa B activation, and increased transcription of proinflammatory
mediators, including tumor necrosis factor-alpha. Increased acetaldehyde
production and lipopolysaccharide-induced Kupffer cell activation may further
exacerbate liver injury. Acetaldehyde may promote hepatic fat accumulation by
impairing the ability of peroxisome proliferator-activated receptor alpha to
bind DNA, and by increasing the synthesis of sterol regulatory binding
protein-1. Unsaturated fatty acids (corn oil, fish oil) exacerbate alcoholic
liver injury by accentuating oxidative stress, whereas saturated fatty acids are
protective. Polyenylphosphatidylcholine may prevent liver injury by
down-regulating cytochrome P450 2E1 activity, attenuating oxidative stress,
reducing the number of activated hepatic stellate cells, and up-regulating
collagenase activity. Nonalcoholic steatohepatitis may develop through several
mechanisms, such as oxidative stress, mitochondrial dysfunction and associated
impaired fat metabolism, dysregulated cytokine metabolism, insulin resistance,
and altered methionine/S-adenosylmethionine/homocysteine metabolism. Obesity
(adipose tissue) may contribute to the development of alcoholic liver disease by
generating free radicals, increasing tumor necrosis factor-alpha production,
inducing insulin resistance, and producing fibrogenic agents, such as
angiotensin II, norepinephrine, neuropeptide Y, and leptin. Finally, alcoholic
fatty liver transplant failure may be linked to oxidative stress. In vitro
treatment of fatty livers with interleukin-6 may render allografts safer for
clinical transplantation.
-----
Liver Transpl. 2004 Oct;10(10 Suppl 2):S31-8.
Liver transplantation for alcoholic liver disease: current
concepts and length of sobriety.
Lim JK, Keeffe EB.
Division of Gastroenterology and Hepatology, Department of Medicine, Stanford
University School of Medicine, Stanford, CA, USA.
1. The 1-year and 5-year actuarial survival rates following liver
transplantation for patients with alcoholic liver disease are 82% and 68%,
respectively, in the United States and 85% and 70%, respectively, in Europe.
These survival rates are similar to the outcomes of patients who undergo
transplantation for other types of chronic liver disease. 2. Posttransplant
improvements in health-related quality of life are similar in patients who
undergo transplantation for alcoholic liver disease compared to those who
undergo transplantation for other causes of end-stage liver disease. 3.
Approximately 20% of patients who undergo transplantation for alcoholic liver
disease use alcohol posttransplant, with one-third of these individuals
exhibiting repetitive or heavy drinking. Surprisingly, little evidence exists to
document a significant detrimental effect on graft or patient survival
associated with resumption of drinking. 4. There are few reliable predictors of
relapse in alcoholic patients after liver transplantation. Although not
supported by all studies, abstinence of fewer than 6 months prior to
transplantation may be a reasonable predictor of recidivism and is widely
employed as a criterion for listing for liver transplantation. There are no good
data to determine if some patients with sobriety fewer than 6 months might
benefit from liver transplantation.
-----
Gastroenterol Clin Biol. 2004 Oct;28(10 Pt 1):845-51.
Predictive factors of alcohol relapse after orthotopic liver
transplantation for alcoholic liver disease.
Miguet M, Monnet E, Vanlemmens C, Gache P, Messner M, Hruskovsky S, Perarnau JM,
Pageaux GP, Duvoux C, Minello A, Hillon P, Bresson-Hadni S, Mantion G, Miguet
JP.
Hopital Jean Minjoz, Besancon. scoffre@club-internet.fr
OBJECTIVES: The objective of this prospective study was to determine whether
sociological and/or alcohol-related behavioral factors could be predictive of
relapse after orthotopic liver transplantation for alcoholic liver disease.
METHODS: Fifty-five liver-transplanted patients out of a series of 120 alcoholic
cirrhotic patients were enrolled in a randomized prospective study. This study
was initially designed to compare the 2 year survival in intent-to-transplant
patients versus in-intent-to-use conventional treatment patients. For all
patients, an identical questionnaire was completed at inclusion, and every 3
months for 5 years to collect data on alcohol-related behavior factors. RESULTS:
Fifty-one patients fulfilled the criteria for the study. The mean follow-up was
35.7 months (range: 1-86). Rate of alcohol relapse was 11% at one year and 30%
at 2 years. Alcohol intake above 140 g a week was declared by 11% and 22% of
patients at one and 2 years, respectively. The only variable leading to a
significantly lower rate of relapse was abstinence for 6 months or more before
liver transplantation (23% vs 79%, P=0.0003). This variable was also significant
for patients whose alcohol intake was greater than 140 g per week (P=0.003)
(adjusted relative risk=5.5; 95%CI=1.3-24.5; P=0.02). Multivariate analysis (Cox
model) showed that abstinence for 6 months or more before liver transplantation
was the unique predictive variable. CONCLUSION: In this prospective study of 51
patients transplanted for alcoholic liver disease, abstinence before liver
transplantation was the only predictive factor of alcohol relapse after liver
transplantation.
-----
Scott Med J. 2004 Aug;49(3):84-7.
The impact of specialist management of jaundiced alcoholic liver
disease patients.
Forrest EH.
Department of Gastroenterology, Victoria Infirmary, Glasgow. Ewan.Forrest@gvic.scot.nhs.uk
BACKGROUND: Patients with alcoholic liver disease (ALD) presenting with jaundice
have advanced chronic ALD and/or acute alcoholic hepatitis. Their prognosis is
poor. These patients may be managed by General Medical physicians (GM) or by
Gastroenterologists (GE). AIM: This study aimed to retrospectively assess the
differences in management and outcome of jaundiced ALD between GM and GE.
PATIENTS AND METHODS: Patients with a serum bilirubin greater than 80 mmol/l on
admission and a history of alcohol excess until within three weeks of admission
were identified retrospectively. In particular the use of corticosteroids (CS),
nutritional support (N) and the use of broad-spectrum antibiotics (A/b) were
noted. RESULTS: 97 patients were identified, 62 managed by GE. Differences were
apparent between GE and GM managed patients with respect to CS (p = 0.017), N (p
< 0.001) and A/b (p < 0.001). The overall mortality was 27.8%, 34.0%, and 37.1%
at 28, 56, and 84 days respectively. Mortality for patients with a Discriminant
Function approximately 32 was greater in GM managed patients compared with GE at
28 (p = 0.006), 56 (p = 0.013), and 84 days (p = 0.036). CONCLUSION: Differences
exist between the management of jaundiced ALD between GM and GE. Such
differences may translate into improved outcomes.
-----
Ther Umsch. 2004 Aug;61(8):505-12.
[Alcoholic and non-alcoholic steatohepatitis]
[Article in German]
Dufour JF, Oneta CM.
Institut fur klinische Pharmakologie der Universitat Bern. jf.dufour@ikp.unibe.ch
Chronic aethylism has always been a major social as well as health problem. It
may lead, at least in some patients, to steatohepatitis (ASH) which is known to
progress to cirrhosis more rapidly. Because of the fact that the prevalence of
obesity in association with the metabolic syndrome (insulin resistance) is
strikingly increasing in the Western world, we will more and more often be faced
with a second form of steatohepatitis, the so called non-alcoholic
steatohepatitis (NASH). Clinical differentiation between these two entities may
often be difficult. The use of the CAGE-questions as well as interviewing family
members can help to indentify hidden alcohol abuse. Clinically, the presence of
both diseases can only be speculated. To get the diagnosis, liver biopsy must be
performed to show the typical histologic feature of fatty liver with hepatocyte
necrosis as well as infiltration of polymorphcellular leukocytes. Histology
cannot differentiate between ASH and NASH. Therefore, similar pathogenetic
mechanisms are supposed. However, therapeutic approaches are different.
Treatment of choice in ASH is alcohol abstinence, that of NASH the reduction of
insulin resistance, primarily by weight loss.
-----
Semin Liver Dis. 2004 Aug;24(3):289-304.
Nutrition and alcoholic liver disease.
Halsted CH.
Department of Internal Medicine and Nutrition, University of California Davis,
Davis, California 95616, USA. chhalsted@ucdavis.edu
Malnutrition is a common finding in chronic alcoholics, and protein calorie
malnutrition (PCM) is universal and predictive of survival in patients with
established alcoholic liver disease (ALD). These patients also demonstrate
frequent deficiencies of folate, thiamine, pyridoxine, and vitamin A, which
enhance the likelihood of anemia, altered cognitive states, and night blindness.
The etiologies of malnutrition in ALD patients are multiple and interactive and
include anorexia with inadequate dietary intake, abnormal digestion of
macronutrients and absorption of several micronutrients, increased skeletal and
visceral protein catabolism, and abnormal interactions of ethanol and lipid
metabolism. Numerous, and mostly inadequately controlled, studies have evaluated
the potential efficacies of oral, enteral, and parenteral nutrition approaches
to treatment of ALD, with mixed results on liver function, clinical
improvements, and short- or long-term survival. Targeted metabolic treatments
include supplementation with S-adenosylmethionine (SAM) or phosphatidylcholine
derivatives, each with promising experimental bases but inconclusive clinical
trials.
-----
Semin Liver Dis. 2004 Aug;24(3):249-55.
Transplantation in the alcoholic patient.
Watt KD, McCashland TM.
Department of Internal Medicine and Hepatology, University of Nebraska Medical
Center, Omaha, Nebraska 68198-3285, USA.
Alcoholic liver disease (ALD) is the second leading indication for
transplantation in the United States. Most transplant programs in the United
States require a minimum of 6 month's abstinence before transplantation is
performed. Most studies have shown a recidivism rate of between 20 and 30% by 2
years after orthotopic liver transplantation (OLT). Higher rates of recidivism
are reported if pre-OLT abstinence was < 6 months. The impact of recidivism on
patient and graft survival is not clear because most reports include patients
who consume alcohol in small amounts or infrequently. Equal post-OLT survival
for ALD patients and non-ALD patients has been demonstrated, and ALD patients
are not thought to suffer greater morbidity post transplant than non-ALD
patients. Careful pretransplant assessment for concomitant medical and
psychosocial ailments associated with alcoholism is important. Posttransplant
monitoring for cardiovascular disease and withdrawal syndromes is required in
the early postoperative setting, whereas monitoring for recidivism and
malignancy are late postoperative issues.
-----
Semin Liver Dis. 2004 Aug;24(3):233-47.
Diagnosis and therapy of alcoholic liver disease.
Levitsky J, Mailliard ME.
University of Nebraska College of Medicine, Department of Internal Medicine,
University of Nebraska Medical Center, Omaha, Nebraska 68198, USA.
Alcoholic liver disease (ALD) presents considerable challenges to clinicians.
Screening for alcohol abuse and alcoholism should be routine and repeated
annually with close attention to signs and symptoms of liver disease. In
patients with evidence of liver dysfunction or injury, consideration should be
given to performance of liver biopsy for diagnosis and prognosis and prior to
initiation of medication with the potential for significant side effects.
Therapy depends on the spectrum of pathological liver injury: alcoholic fatty
liver, alcoholic hepatitis, and cirrhosis. Abstention is the foundation of
therapy for an alcohol problem. Alcoholic fatty liver should improve with
abstention, but the similarity to the pathogenesis of nonalcoholic fatty liver
and potential for progressive injury merits consideration of lipotropic agents.
The continuing mortality, poor acceptance of corticosteroids, and identification
of tumor necrosis factor-alpha (TNF-alpha) as an integral component has led to
studies of pentoxifylline and, recently, anti-TNF antibody to neutralize
cytokines in the therapy of severe alcoholic hepatitis. Antioxidant therapy of
alcoholic cirrhosis has significant promise but will require large clinical
trials.
-----
Liver Transpl. 2004 Jul;10(7):886-97.
Survival after liver transplantation in the United States: A
disease-specific analysis of the UNOS database.
Roberts MS, Angus DC, Bryce CL, Valenta Z, Weissfeld L.
Section of Decision Sciences and Clinical Systems Modeling, Division of General
Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA.
Our goal was to describe disease-specific survival and the clinical variables
that predict survival in a large national cohort of adult liver transplant
recipients. Data on 17,044 adult patients who received an initial orthotopic
liver transplant between 1990 and 1996 with follow-up through 1999 was obtained
from the United Network for Organ Sharing (UNOS). Disease-specific Kaplan-Meier
survival plots and Cox Proportional Hazards models were estimated, and
differences in the clinical characteristics of patients at the time of
transplantation by disease were examined. Overall posttransplant survival
currently exceeds 85% in the first year and is approaching 75% at 5 years.
Unadjusted Kaplan-Meier survival is improved for recipients who are younger,
female, and in better clinical condition. Survival is a function of disease and
level of illness: cancer, fulminant liver failure, alcoholic liver disease, and
the hepatitidies have the poorest prognosis, while primary billiary cirrohsis
and sclerosing cholangitis have the best. Recipients who were outpatients before
transplantation have longer survival than those transplanted from the hospital
or intensive care unit. Although the model for end-stage liver disease (MELD)
score was designed to predict pretransplant survival, patients with higher MELD
scores have poorer posttransplant survival, but the MELD score is less
predictive than the specific disease. Differences in disease-specific survival
are partially explained by differences in disease severity at the time of
transplantation. In conclusion, Disease-specific survival models indicate that
there remains tremendous variability in survival as a function of underlying
liver disease. However, a significant portion of the difference in survival
between diseases arises from differences in clinical characteristics at the time
of transplantation. (Liver Transpl 2004;10:886-897.)
-----
Hepatology. 2004 May;39(5):1390-7.
A double-blind randomized controlled trial of infliximab
associated with prednisolone in acute alcoholic hepatitis.
Naveau S, Chollet-Martin S, Dharancy S, Mathurin P, Jouet P, Piquet MA, Davion
T, Oberti F, Broet P, Emilie D; Foie-Alcool group of the Association Francaise
pour l'Etude du Foie.
Services d'Hepato-Gastroenterologie, Hopital Antoine Beclere, Clamart,
Assistance Publique-Hopitaux de Paris, France. sylvie.naveau@abc.ap-hop-paris.fr
Tumor necrosis factor-alpha (TNF-alpha) may contribute to the progression of
acute alcoholic hepatitis (AAH). The aim of this study was to evaluate the
efficacy of an association of infliximab and prednisolone at reducing the
2-month mortality rate among patients with severe AAH. Patients with severe AAH
(Maddrey score >/=32) were randomly assigned to group A receiving intravenous
infusions of infliximab (10 mg/kg) in weeks 0, 2, and 4; or group B receiving a
placebo at the same times. All patients received prednisolone (40 mg/day) for 28
days. Blood neutrophil functional capacities were monitored over 28 days. After
randomization of 36 patients, seven patients from group A and three from group B
died within 2 months. The probability of being dead at 2 months was higher (not
significant [NS]) in group A (39% +/- 11%) than in group B (18% +/- 9%). The
study was stopped by the follow-up committee and the sponsor (Assistance
Publique-Hopitaux de Paris). The frequency of severe infections within 2 months
was higher in group A than in group B (P <.002). This difference was potentially
related to a significantly lower ex vivo stimulation capacity of neutrophils.
There were no differences between the two groups in terms of Maddrey scores at
any time point. In conclusion, three infusions of 10 mg/kg of infliximab in
association with prednisolone may be harmful in patients with severe AAH because
of the high prevalence of severe infections.
-----
Aliment Pharmacol Ther. 2004 Apr 1;19(7):707-14.
Review article: current management of alcoholic liver disease.
Tome S, Lucey MR.
Liver Unit, Internal Medicine Department, Complejo Hospitalario Universitario de
Santiago de Compostela, Spain.
Alcoholic liver disease, including acute alcoholic hepatitis and alcoholic
cirrhosis, is a major cause of morbidity and mortality in the Western world.
Abstinence remains the cornerstone of management of all forms of alcoholic liver
disease. Recent research, which has elucidated the mechanisms of alcohol-induced
liver injury, offers the prospect of advances in the management of alcoholic
liver disease. We review the most recent data on the efficacy of treatment of
acute alcoholic injury, including nutritional support, corticosteroids,
anti-inflammatory agents and antioxidants, and agents that are directed against
the progression to fibrosis, such as colchicines, propylthiouracil and
antioxidants. Although these therapies offer a tantalizing glimpse into a future
that may include therapies that directly alter the process of injury and repair
in the liver, none has been shown consistently to improve the course of
alcoholic liver damage. Consequently, liver transplantation remains an ultimate
option for selected patients with liver failure due to chronic alcoholic liver
damage.
-----
Am J Gastroenterol. 2004 Feb;99(2):255-60.
A pilot study of the safety and tolerability of etanercept in
patients with alcoholic hepatitis.
Menon KV, Stadheim L, Kamath PS, Wiesner RH, Gores GJ, Peine CJ, Shah V.
Advanced Liver Disease Study Group, Division of Gastroenterology and Hepatology,
Mayo Clinic, Rochester, Minnesota 55905, USA.
BACKGROUND: Alcoholic hepatitis is a cause of major morbidity and mortality, and
effective therapeutic regimens to treat this condition are lacking. Both
experimental and clinical evidence indicates that tumor necrosis factor alpha (TNF),
and the downstream cytokine interleukin-6 (IL-6), correlate with disease
severity and may contribute to the pathogenesis and clinical sequelae of
alcoholic hepatitis, thereby implicating a possible role for inhibition of TNF
in the treatment of alcoholic hepatitis. OBJECTIVE: The aim of the current study
was to assess the safety and tolerability of a p75-soluble TNF receptor:FC
fusion protein (etanercept), an agent that binds and neutralizes soluble TNF in
patients with alcoholic hepatitis in the form of an open-label pilot trial.
METHODS: Etanercept administration was targeted for 2 wk duration in 13 patients
with moderate or severe alcoholic hepatitis as assessed by a discriminant
function value greater than 15 and/or the presence of spontaneous hepatic
encephalopathy. RESULTS: CONCLUSIONS: On an intention-to-treat basis, the 30-day
survival rate of patients receiving etanercept was 92% (12/13). Adverse events
that were encountered included infection, hepatorenal decompensation, and GI
bleeding, which required premature discontinuation of etanercept in 23% of
patients (3/13). This is the first study to examine TNF inhibition with
etanercept in patients with alcoholic hepatitis and the results of this study
support the rationale for larger controlled studies to further assess safety and
efficacy.
-----
Eur J Gastroenterol Hepatol. 2004 Jan;16(1):9-18.
Ten years' follow-up of 472 patients following transjugular
intrahepatic portosystemic stent-shunt insertion at a single centre.
Tripathi D, Helmy A, Macbeth K, Balata S, Lui HF, Stanley AJ, Redhead DN, Hayes
PC.
Liver Unit, The Royal Infirmary, Edinburgh, UK. d.tripathi@ed.ac.uk
BACKGROUND: Transjugular intrahepatic portosystemic stent-shunt (TIPSS) is
increasingly used for the management of portal hypertension. We report on 10
years' experience at a single centre. METHODS: Data held in a dedicated database
was retrieved on 497 patients referred for TIPSS. The efficacy of TIPSS and its
complications were assessed. RESULTS: Most patients were male (59.4%) with
alcoholic liver disease (63.6%), and bleeding varices (86.8%). Technical success
was achieved in 474 (95.4%) patients. A total of 13.4% of patients bled at
portal pressure gradients < or = 12 mmHg, principally from gastric and ectopic
varices. Procedure-related mortality was 1.2%. The mean follow-up period of
surviving patients was 33.3 +/- 1.9 months. Primary shunt patency rates were
45.4% and 26.0% at 1 and 2 years, respectively, while the overall secondary
assisted patency rate was 72.2%. Variceal rebleeding rate was 13.7%, with all
episodes occurring within 2 years of TIPSS insertion, and almost all due to
shunt dysfunction. The overall mortality rate was 60.4%, mainly resulting from
end-stage liver failure (42.5%). Patients who bled from gastric varices had
lower mortality than those from oesophageal varices (53.9% versus 61.5%, P <
0.01). The overall rate of hepatic encephalopathy was 29.9% (de novo
encephalopathy was 11.5%), with pre-TIPSS encephalopathy being an independent
predicting variable. Refractory ascites responded to TIPSS in 72% of cases,
although the incidence of encephalopathy was high in this group (36.0%).
CONCLUSIONS: TIPSS is effective in the management of variceal bleeding, and has
a low complication rate. With surveillance, good patency can be achieved.
Careful selection of patients is needed to reduce the encephalopathy rate.
-----
Aliment Pharmacol Ther. 2004 Apr;19(7):707-14.
Current management of alcoholic liver disease.
Tome S, Lucey MR.
Liver Unit, Internal Medicine Department, Complejo Hospitalario
Universitario de Santiago de Compostela, Spain.
Summary Alcoholic liver disease, including acute alcoholic
hepatitis and alcoholic cirrhosis, is a major cause of morbidity
and mortality in the Western world. Abstinence remains the cornerstone
of management of all forms of alcoholic liver disease. Recent
research, which has elucidated the mechanisms of alcohol-induced
liver injury, offers the prospect of advances in the management
of alcoholic liver disease. We review the most recent data on
the efficacy of treatment of acute alcoholic injury, including
nutritional support, corticosteroids, anti-inflammatory agents
and antioxidants, and agents that are directed against the progression
to fibrosis, such as colchicines, propylthiouracil and antioxidants.
Although these therapies offer a tantalizing glimpse into a future
that may include therapies that directly alter the process of
injury and repair in the liver, none has been shown consistently
to improve the course of alcoholic liver damage. Consequently,
liver transplantation remains an ultimate option for selected
patients with liver failure due to chronic alcoholic liver damage.
-----
Rev Esp Enferm Dig. 2004 Jan;96(1):60-73.
Diagnostic and therapeutic approach to cholestatic
liver disease.
[Article in English, Spanish]
Perez Fernandez T, Lopez Serrano P, Tomas E, Gutierrez ML, Lledo
JL, Cacho G, Santander C, Fernandez Rodriguez CM.
Unit of Digestive Diseases, Fundacion Hospital Alcorcon, Madrid,
Spain.
When cholestatic liver disease is present, liver ultrasound
should be performed to ascertain if cholestasis is extrahepatic
or intrahepatic. If bile ducts appear dilated and the probability
of interventional treatment is high, endoscopic retrograde cholagio-pancreatography
(ERCP) or trans-hepatic cholangiography (THC) should be the next
step. If the probability of interventional therapeutics is low,
cholangio-MRI should be performed. Once bile duct dilation and
space occupying lesions are excluded, a work up for intrahepatic
cholestasis should be started. Some specific clinical situations
may be helpful in the diagnostic strategy. If cholestasis occurs
in the elderly, drug-induced cholestatic disease should be suspected,
whereas if it occurs in young people with risk factors, cholestatic
viral hepatitis is the most likely diagnosis. During the first
trimester of pregnancy cholestasis may occur in hyperemesis gravidorum,
and in the third trimester of gestation cholestasis of pregnancy
should be suspected. A familial history of recurrent cholestasis
points to benign recurrent intrahepatic cholestasis. The occurrence
of intrahepatic cholestasis in a middle-aged woman is a frequent
presentation of primary biliary cirrhosis, whereas primary sclerosing
cholangitis should be suspected in young males with inflammatory
bowel disease. The presence of vascular spider nevi, ascites,
and a history of alcohol abuse should point to alcoholic hepatitis.
Neonatal cholestasis syndromes include CMV, toxoplasma and rubinfections
or metabolic defects such as cystic fibrosis, alpha1-antitrypsin
deficiency, bile acid synthesis defects, or biliary atresia. The
treatment of cholestasis should include a management of complications
such as pruritus, osteopenia and correction of fat soluble vitamin
deficiencies. When hepatocellular failure or portal hypertension-related
complications occur, liver transplantation should be considered.
-----
Ann Surg. 2004 Jan;239(1):93-8.
Societal reintegration after liver transplantation:
findings in alcohol-related and non-alcohol-related transplant
recipients.
Cowling T, Jennings LW, Goldstein RM, Sanchez EQ, Chinnakotla
S, Klintmalm GB, Levy MF.
Transplantation Services, Baylor University Medical Center, Dallas,
TX 76104, USA.
OBJECTIVE: To compare the degree of societal reintegration
between alcohol-related and non-alcohol-related liver transplant
recipients. SUMMARY BACKGROUND DATA: Orthotopic liver transplantation
(OLTX) is the treatment of choice for end-stage liver disease
of various etiologies. Returning patients to society to lead active
and productive lives is a key goal of OLTX. METHODS: A questionnaire
assessing societal reintegration was administered by phone to
84 alcoholic liver disease (ALD) OLTX recipients (ALDs) and 68
non-ALD OLTX recipients having undergone OLTX at a single-center
urban not-for-profit teaching hospital. Sixty-eight non-ALD OLTX
recipients, serving as the control group (Controls), were matched
to the ALDs by age, sex, and length of follow-up. Participation
levels were assessed in the following areas: employment, homemaking,
academic study, support of others through financial and/or care-giving
efforts, and involvement in social or community groups and activities.
RESULTS: Seventy-nine percent of ALDs and 81% of Controls were
male. Median age was 53 years for ALDs and 54 years for Controls.
Median length of follow-up for both groups separately was 52 months.
No significant differences were noted between ALDs and Controls
in the proportion of employed individuals, homemakers, students,
and supporters of others. Controls were significantly more likely
than ALDs to be involved in structured social activities and routine
volunteer work. CONCLUSIONS: Alcohol-related and non-alcohol-related
OLTX recipients appear to return to society to lead similarly
active and productive lives. ALD OLTX recipients appear less likely
to be involved in structured social activities and routine volunteer
work than non-ALD OLTX recipients.
-----
J Gastroenterol Hepatol. 2003 Dec;18(12):1332-44.
Pathogenesis and management of alcoholic hepatitis.
Haber PS, Warner R, Seth D, Gorrell MD, McCaughan GW.
Drug Health Services and AW Morrow Gastroenterology and Liver
Centre, Royal Prince Alfred Hospital, and Department of Medicine,
University of Sydney, Sydney, Australia. phaber@mail.edu.au
Alcoholic hepatitis is a potentially life-threatening complication
of alcoholic abuse, typically presenting with symptoms and signs
of hepatitis in the presence of an alcohol use disorder. The definitive
diagnosis requires liver biopsy, but this is not generally required.
The pathogenesis is uncertain, but relevant factors include metabolism
of alcohol to toxic products, oxidant stress, acetaldehyde adducts,
the action of endotoxin on Kupffer cells, and impaired hepatic
regeneration. Mild alcoholic hepatitis recovers with abstinence
and the long-term prognosis is determined by the underlying disorder
of alcohol use. Severe alcoholic hepatitis is recognized by a
Maddrey discriminant function >32 and is associated with a
short-term mortality rate of almost 50%. Primary therapy is abstinence
from alcohol and supportive care. Corticosteroids have been shown
to be beneficial in a subset of severely ill patients with concomitant
hepatic encephalopathy, but their use remains controversial. Pentoxifylline
has been shown in one study to improve short-term survival rates.
Other pharmacological interventions, including colchicine, propylthiouracil,
calcium channel antagonists, and insulin with glucagon infusions,
have not been proven to be beneficial. Nutritional supplementation
with available high-calorie, high-protein diets is beneficial,
but does not improve mortality. Orthotopic liver transplantation
is not indicated for patients presenting with alcoholic hepatitis
who have been drinking until the time of admission, but may be
considered in those who achieve stable abstinence if liver function
fails to recover.
-----
Alcohol Clin Exp Res. 2003 Nov;27(11):1757-64.
I. Veterans Affairs Cooperative Study of Polyenylphosphatidylcholine
in Alcoholic Liver Disease: effects on drinking behavior by nurse/physician
teams.
Lieber CS, Weiss DG, Groszmann R, Paronetto F, Schenker
S; For the Veterans Affairs Cooperative Study 391 Group.
Bronx Veterans Affairs Medical Center and the Mount Sinai School
of Medicine, New York 10468, USA. liebercs@aol.com
BACKGROUND: This multicenter prospective, randomized, double-blind
placebo-controlled trial was designed to evaluate the effectiveness
of polyenylphosphatidylcholine against the progression of liver
fibrosis toward cirrhosis in alcoholics. Seven hundred eighty-nine
alcoholics with an average intake of 16 drinks per day were enrolled.
To control excessive drinking, patients were referred to a standard
12-step-based alcoholism treatment program, but most patients
refused to attend. Accordingly, study follow-up procedures incorporated
the essential features of the brief-intervention approach. An
overall substantial and sustained reduction in drinking was observed.
Hepatic histological and other findings are described in a companion
article. METHODS: Patients were randomized to receive daily three
tablets of either polyenylphosphatidylcholine or placebo. Monthly
follow-up visits included an extensive session with a medical
nurse along with brief visits with a study physician (hepatologist
or gastroenterologist). A detailed physical examination occurred
every 6 months. In addition, telephone consultations with the
nurse were readily available. All patients had a liver biopsy
before entry; a repeat biopsy was scheduled at 24 and 48 months.
RESULTS: There was a striking decrease in average daily alcohol
intake to approximately 2.5 drinks per day. This was sustained
over the course of the trial, lasting from 2 to 6 years. The effect
was similar both in early dropouts and long-term patients, i.e.,
those with a 24-month biopsy or beyond. CONCLUSIONS: In a treatment
trial of alcoholic liver fibrosis, a striking reduction in alcohol
consumption from 16 to 2.5 daily drinks was achieved with a brief-intervention
approach, which consisted of a relative economy of therapeutic
efforts that relied mainly on treatment sessions with a medical
nurse accompanied by shorter reinforcing visits with a physician.
This approach deserves generalization to address the heavy drinking
problems commonly encountered in primary care and medical specialty
practices.
-----
Alcohol Clin Exp Res. 2003 Nov;27(11):1765-72.
II. Veterans Affairs Cooperative Study of Polyenylphosphatidylcholine
in Alcoholic Liver Disease.
Lieber CS, Weiss DG, Groszmann R, Paronetto F, Schenker
S; For the Veterans Affairs Cooperative Study 391 Group.
Bronx Veterans Affairs Medical Center and the Mount Sinai School
of Medicine, New York 10468, USA. liebercs@aol.com
BACKGROUND: Polyenylphosphatidylcholine (PPC) has been shown
to prevent alcoholic cirrhosis in animals. Our aims were to determine
the effectiveness of PPC in preventing or reversing liver fibrosis
in heavy drinkers and to assess the extent of liver injury associated
with the reduced drinking achieved in these patients. METHODS:
This randomized, prospective, double-blind, placebo-controlled
clinical trial was conducted in 20 Veterans Affairs Medical Centers
with 789 patients (97% male; mean age, 48.8 years) averaging 16
drinks per day (1 drink = 14 g of alcohol) for 19 years. A baseline
liver biopsy confirmed the presence of perivenular or septal fibrosis
or incomplete cirrhosis. They were randomly assigned either PPC
or placebo. Liver biopsy was repeated at 24 months, and the main
outcome measure was the stage of fibrosis compared with baseline.
Progression was defined as advancing to a more severe stage. RESULTS:
The 2-year biopsy was completed in 412 patients. PPC did not differ
significantly from placebo in its effect on the main outcome.
Alcohol intake was unexpectedly reduced in both groups to approximately
2.5 drinks per day. With this intake, 21.4% advanced at least
one stage (22.8% of PPC patients and 20.0% of placebo patients).
The hepatitis C virus-positive subgroup exhibited accelerated
progression. Improvement in transaminases and bilirubin favoring
PPC was seen at some time points in other subgroups (hepatitis
C virus-positive drinkers or heavy drinkers). CONCLUSIONS: PPC
treatment for 2 years did not affect progression of liver fibrosis.
A trend in favor of PPC was seen for transaminases and bilirubin
(in subgroups). One of five patients progressed even at moderate
levels of drinking, and thus health benefits commonly associated
with moderate drinking do not necessarily extend to individuals
in the early stages of alcoholic liver disease.
-----
Neurology. 2003 Nov 11;61(9):1174-8.
Neurologic complications of liver transplantation
in adults.
Lewis MB, Howdle PD.
St. James's University Hospital, Leeds, UK. m-k-lewis@msn.com
OBJECTIVE: To describe the incidence and nature of neurologic
complications following liver transplantation. METHODS: Adult
patients who received liver transplants at St. James's University
Hospital between September 1, 1990, and August 31, 2000, were
identified. Case notes were reviewed and demographic data, details
of the liver disease, neurologic complications, and discharge
information were recorded. RESULTS: The authors identified 657
patients and traced the case notes of 627 (95.4%). These patients
had a total of 711 transplants. Neurologic complications occurred
following 185 transplants (26%) affecting 170 patients (27%).
The most common complications were diffuse encephalopathies, which
affected 66 patients (11%), and seizures, which affected 37 patients
(6%). Forty-three percent of patients with alcoholic liver disease
and 41% of patients with primary biliary cirrhosis experienced
a neurologic complication. These proportions were higher than
for other transplant indications (p < 0.001). Patients who
experienced a neurologic problem spent longer in hospital (p <
0.01) and had a poorer outcome (p < 0.001). CONCLUSIONS: Neurologic
complications occur following 26% of liver transplants. A higher
proportion of patients who received transplants for alcoholic
liver disease and primary biliary cirrhosis experienced neurologic
complications than those receiving transplants for other reasons.
Patients who experience a neurologic problem spend longer in hospital
and have a poorer outcome.
-----
Liver Transpl. 2003 Sep;9(9):921-8.
An evaluation of long-term outcomes after liver
transplantation for cryptogenic cirrhosis.
Heneghan MA, Zolfino T, Muiesan P, Portmann BC, Rela M,
Heaton ND, O'grady JG.
Institute of Liver Studies, King's College Hospital, Denmark Hill,
London, England.
Patients with cryptogenic cirrhosis (CC) comprise a significant
proportion of liver transplant recipients. Poor outcome after
transplantation has been reported by some centers, with fibrosis
occurring in a significant proportion of patients. Outcome of
46 patients with CC who underwent transplantation between 1989
and 1999 at King's College Hospital London were compared with
time-matched recipients who underwent transplantation for hepatitis
C virus (HCV) cirrhosis (n = 58) and patients with alcohol-related
cirrhosis (AC, n = 53) during the same time period. Mean follow-up
was 46 +/- 37 months for CC patients, 41 +/- 31 months for AC
patients, and 49 +/- 31 months for HCV patients. No protocol liver
biopsy specimens were obtained, and biopsies were performed only
for investigation of biochemical abnormalities. Acute cellular
rejection occurred in 30% of CC, 26% of AC, and 37% of HCV patients
(P = NS). Overall patient and graft survival at 1 year was 85%
and 80% for CC patients, 87% and 81% for AC patients, and 91%
and 82% for patients with HCV (P = NS). Five-year patient and
graft survival was 81% and 77% for CC patients, 60% and 48% for
AC patients, and 79% and 57% for HCV patients (Log rank; P =.369).
Twenty-two percent of CC patients had inflammation on last evaluable
liver biopsy, compared with 25% of patients who underwent transplantation
for AC and 68% of patients who underwent transplantation for HCV.
No patient who underwent transplantation for CC had histologic
evidence of cirrhosis on last evaluable biopsy, compared with
2% of patients who underwent transplantation for AC and 16% of
patients who underwent transplantation for HCV (Chi-squared =
13.053, P =.0015). These results suggest that CC is a favorable
indication for OLT and that although a proportion of patients
develop inflammation in the liver allograft, this does not result
in significant graft dysfunction or loss.
-----
Aliment Pharmacol Ther. 2003 Aug 15;18(4):357-73.
Review article: Nutritional therapy in alcoholic
liver disease.
Stickel F, Hoehn B, Schuppan D, Seitz HK.
Department of Medicine I, University of Erlangen-Nuremberg, Germany.
Chronic alcohol consumption may lead to primary and secondary
malnutrition. In particular, protein energy malnutrition not only
aggravates alcoholic liver disease but also correlates with impaired
liver function and increased mortality. Therefore, in these patients,
adequate nutritional support should be implemented in order to
improve their prognosis. Clinical trials addressing this issue
have shown that nutritional therapy either enterally or parenterally
improves various aspects of malnutrition, and there is increasing
evidence that it may also improve survival. Therefore, malnourished
alcoholics should be administered a diet rich in carbohydrate-
and protein-derived calories preferentially via the oral or enteral
route. Micronutrient deficiencies typically encountered in alcoholics,
such as for thiamine and folate, require specific supplementation.
Patients with hepatic encephalopathy may be treated with branched-chain
amino acids in order to achieve a positive nitrogen balance. Fatty
liver represents the early stage of alcoholic liver disease, which
is usually reversible with abstinence. Metadoxine appears to improve
fatty liver but confirmatory studies are necessary. S-adenosyl-L-methionine
may be helpful for patients with severe alcoholic liver damage,
since various mechanisms of alcohol-related hepatotoxicity are
counteracted with this essential methyl group donor, while a recent
large trial showed that the use of polyenylphosphatidylcholine
is of limited efficacy.
-----
Liver Transpl. 2003 Jul;9(7):772-5.
First report of a psychosocial intervention for
patients with alcohol-related liver disease undergoing
liver transplantation.
Georgiou G, Webb K, Griggs K, Copello A, Neuberger J, Day
E.
Addictive Behaviours Centre, Birmingham, England.
Performing transplantations in patients with alcoholic liver
disease raises great concerns for both clinicians and lay people,
not least because of the fear that relapse back to drinking after
the procedure may lead to poor outcomes. Therefore it is important
to develop and evaluate new strategies for assessing and supporting
such patients. A program of psychosocial intervention was developed
to assist patients undergoing transplantation for alcoholic liver
disease in coping with their alcohol problems. We describe a feasibility
study of its implementation in a group of 20 such patients. This
report shows that it is feasible to deliver a time-limited psychological
intervention to patients undergoing assessment for liver transplantation.
The intervention was readily integrated into the usual transplantation
process and was acceptable to both patients and staff. Further
research is required to clarify its impact on longer-term outcome
measures.
-----
QJM. 2003 Jun;96(6):391-400.
Recent developments in the treatment of alcoholic
hepatitis.
Madhotra R, Gilmore IT.
Milton Keynes General Hospital, Milton Keynes, and. Royal Liverpool
University Hospital, Liverpool, UK.
Alcoholic hepatitis is a form of acute injury to liver tissue
that is also a precursor of cirrhosis, and carries significant
morbidity and mortality. Severe alcoholic hepatitis in particular
carries a high short-term mortality, and also places an enormous
burden on stretched healthcare resources. Treatment of alcoholic
hepatitis has been limited to supportive management and nutritional
supplementation without clear improvements in outcome, and the
timing and patient selection for hepatic transplantation is problematic.
The use of corticosteroids has remained controversial for many
years, but probably has a role in selected patients. Various other
therapeutic strategies have been tested over the decades and none
has shown any consistent benefit. Recently there have been major
developments in our understanding of the mechanisms of alcoholic
liver injury, including the role of cytokines and hepatocyte apoptosis.
For the first time, there are exciting possibilities for specific
therapies for this challenging and serious condition.
-----
Arq Gastroenterol. 2002 Jul-Sep;39(3):147-52. Epub 2003 May
21.
[Outcome of liver transplantation in patients
with alcoholic liver disease]
[Article in Portuguese]
Parolin MB, Coelho JC, da Igreja M, Pedroso ML, Groth AK, Goncalves
CG.
Servico de Transplante Hepatico, Hospital de Clinicas, Universidade
Federal do Parana, Brasil. mbparolin@hotmail.com
BACKGROUND: Liver transplantation is accepted as effective
therapeutic option for end-stage liver disease, including alcoholic
liver disease AIM: To evaluate the outcome of liver transplantation
for alcoholic liver disease in the Liver Transplantation Program
at "Hospital de Clinicas" of the Federal University
of Parana, Curitiba, PR, Brazil. PATIENTS AND METHODS: It was
performed a retrospective study of the patients who underwent
liver transplantation for alcoholic end-stage liver disease between
September 1991 and January 2001. The minimum abstinence period
required was 6 months before liver transplantation. Identification
of alcohol consumption after liver transplantation was determinated
by information provided by patient or family and biochemical or
histological anormalities. RESULTS: Twenty patients underwent
liver transplantation for alcoholic liver disease in the study
period, 95% (19/20) were men and the median age was 50 years (29-61
years). Seventy-five percent of the patients (15/20) had severe
liver disfunction (Child C class) in the pre-transplant period.
In six of them (30%) there was association with viral hepatitis
and in one, with hepatocarcinoma. Median abstinence period before
liver transplantation was 24 months, varying from 9 to 120 months.
One-year and 3-year survival rate were 75% and 50%, respectively.
The main complications were: acute cellular rejection (40%), chronic
rejection (5%), hepatic artery thrombosis (15%), biliary complications
(15%), bacterial or fungal infections (45%), cytomegalovirus infection
(20%). Three patients returned to alcohol use after liver transplantation
CONCLUSION: The survival of patients who received liver transplant
for alcoholic cirrhosis are satisfactory. In the present study
there was a small index of alcohol use after liver transplantation.
-----
J Hepatol. 2003 May;38(5):629-34.
Alcohol relapse after liver transplantation for
alcoholic liver disease: does it matter?
Pageaux GP, Bismuth M, Perney P, Costes V, Jaber S, Possoz
P, Fabre JM, Navarro F, Blanc P, Domergue J, Eledjam JJ, Larrey
D.
Federation medico-chirurgicale d' Hepato-gastroenterologie et
Transplantation, Hopital Saint Eloi, 80 rue Augustin Fliche, 34295
CHU Cedex 5, Montpellier, France
BACKGROUND/AIMS: The aim of this study was to distinguish the
types of alcohol consumption after liver transplantation (LT)
for alcoholic cirrhosis and to assess the consequences of heavy
drinking.METHODS: Patients transplanted for alcoholic cirrhosis
were studied. Alcoholic relapse diagnosis was based upon patient's
and family members' reports, liver enzyme tests, graft biopsy,
and use of urine alcohol test.RESULTS: One hundred twenty-eight
patients were studied, with a mean follow-up of 53.8 months. After
LT, 69% of patients were abstinent, 10% were occasional drinkers,
and 21% were heavy drinkers. Actuarial survival rates were not
different, but three of the seven deaths observed among heavy
drinkers were directly related to alcohol relapse. Although there
was no difference between the three groups concerning the rejection
rates, all rejection episodes observed in the group of heavy drinkers
were related to poor compliance with immunosuppressive drugs.
One heavy drinker developed alcoholic cirrhosis.CONCLUSIONS: The
present study indicates that patients can resume heavy alcohol
consumption after LT for alcoholic liver disease (ALD) and their
grafts can be injured because of poor compliance with immunosuppressive
drugs and alcohol-related liver injury. Although patient survival
was not influenced by alcohol relapse, heavy alcohol consumption
can be responsible for patients' death.
-----
Z Gastroenterol. 2003 Apr;41(4):333-42.
[Alcoholic liver diseaseestablished treatment
and new therapeutic approaches]
[Article in German]
Stickel F, Seitz HK, Hahn EG, Schuppan D.
Medizinische Klinik I und Poliklinik, Friedrich-Alexander-Universitat
Erlangen-Nurnberg, Erlangen. felix.stickel@med1.imed.uni-erlangen.de
Alcoholic liver disease is the most frequent organ damage encountered
in chronic alcoholics and the annual death rate attributed to
alcohol-induced end-stage liver disease exceeds that of car accidents.
Alcoholic liver damage occurs mainly due to the toxicity of its
first metabolite acetaldehyde, and due to interactions with numerous
macro- and micronutrients. Established treatment options comprise
psychotherapy aiming to achieve abstinence, nutritional therapy,
management of hepatological complications, and liver transplantation
in selected individuals. Since these therapeutic approaches are
unsuccessful in many patients, pharmacological therapies of alcoholic
liver disease are being investigated. Many drugs failed to be
beneficial or have even shown toxicity. However, some agents are
promising, such as S-adenosyl-L-methionine (SAMe), pentoxifylline,
metadoxin, polyenylphosphatidylcholine or inhibitors of the cytochrome
P450 2E1 isoenzyme. In severely ill patients with alcoholic hepatitis,
drugs with anti-tumor necrosis factor alpha activity are currently
investigated in clinical trials. If and how far corticosteroids
are beneficial remains controversial and their use should be restricted
to selected patients. Anabolic steroids used to enhance the nutritional
status may lead to serious side effects while having a marginal
benefit. Silymarin has not been proven efficacious in alcoholic
cirrhosis and clinical trials are ongoing which aim to elucidate
its therapeutic value in less advanced stages of liver disease.
-----
Liver Int. 2003;23 Suppl 3:66-72.
Economic evaluation and 1-year survival analysis
of MARS in patients with alcoholic liver disease.
Hessel FP, Mitzner SR, Rief J, Guellstorff B, Steiner S,
Wasem J.
Institute for Health Care Management, University of Essen, Germany.
franz.hessel@uni-essen.de
Objective of this study was to determine 1-year survival, costs
and cost-effectiveness of the artificial liver support system
Molecular Adsorbent Recirculating System (MARS) in patients with
acute-on-chronic liver failure (ACLF) and an underlying alcoholic
liver disease. In a case-control study, 13 patients treated with
MARS were compared to 23 controls of similar age, sex and severity
of disease. Inpatient hospital costs data were extracted from
patients' files and hospital's internal costing. Patients and
treating GPs were contacted, thus determining resource use and
survival 1-year after treatment. Mean 1-year survival time in
MARS group was 261 days and 148 days in controls. Kaplan-Meier
analysis shows advantages of MARS patients (Logrank: P=0.057).
Direct medical costs per patient for initial hospital stay and
1-year follow-up from a payer's perspective were Euro 18,792 for
MARS patients and Euro 9638 for controls. The costs per life-year
gained are Euro 29,719 (time horizon 1 year). From a societal
perspective, the numbers are higher (costs per life-year gained:
Euro 79,075), mainly because of the fact that there is no regular
reimbursement of MARS and therefore intervention costs were not
calculated from payer's perspective. A trade-off between medical
benefit and higher costs has to be made, but 1-year results suggest
an acceptable cost-effectiveness of MARS. Prolonging the time
horizon and including indirect
-----
Wiad Lek. 2003;56(1-2):61-70
[Alcoholic liver disease]
[Article in Polish]
Waluga M, Hartleb M.
Katedry i Kliniki Gastroenterologii Slaskiej Akademii Medycznej
w Katowicach.
Ethanol toxicity on liver is a function of duration of alcoholism,
amount of daily intake of alcohol and patient's nutrition. The
threshold of alcohol toxicity on the liver is about 40 g of ethanol
daily in men and 20-30 g in women, however liver cirrhosis develops
in no more than 8-20% of patients exceeding this values. Ethanol
is oxidized in the liver to acetaldehyde--a compound considerably
more toxic than ethanol itself. Despite small amount of alcohol
dehydrogenase (ADH) found in gastric mucosa, the metabolism of
ethanol in this site may have an important hepatoprotective effect.
The oxidation of ethanol is associated with a change of hepatocyte
redox homeostasis, which leads to a number of metabolic disorders
such as lactic acidosis, hyperlipidaemia and hyperuricaemia. Chronic
ethanol consumption does not influence ADH activity, but has a
profound stimulatory effect on microsomal enzymes, in particular
cytochrome CYP2E1. This fact is responsible for development in
alcoholic liver associated with rise of oxygen consumption, excessive
production of free radicals and increased metabolism of ethanol,
vitamin A and testosterone. Ethanol and acetaldehyde have a deleterious
effect, both the direct and indirect, on hepatocytes e.g., generating
radical oxygen species and damaging intestinal mucosal barrier.
Cellular oxidative stress that is caused by both an excess of
free radicals and the antioxidatives' deficiency (glutathion,
vitamin E, phosphatidylcholine), may be the principal factor responsible
for progression of alcoholic liver disease. Among other factors
accelerating alcohol-related liver lesion there are certain drugs,
high fat diet, infection with HCV and genetic factors (female
sex, enzymatic polymorphic forms of ADH and ALDH, hemochromatosis).
Great importance in pathogenesis of necrotic and inflammatory
hepatic events is being attributed to portal endotoxaemia and
cytokines induced within the liver, in particular TNF-alpha and
interleukin 8. These cytokines play a key role in development
of alcoholic hepatitis, which clinical severity ranges from subclinical
to fatal forms. Apart from abstinence, the treatment of alcohol
liver disease is based on hyperalimentation, since alcoholism
is generally associated with protein malnutrition. In severe forms
of alcohol hepatitis corticosteroids are recommended.
-----
Hepatology. 2003 Apr;37(4):887-92.
A randomized controlled trial of ursodeoxycholic
acid in patients with alcohol-induced
cirrhosis and jaundice.
Pelletier G, Roulot D, Davion T, Masliah C, Causse X, Oberti F,
Raabe JJ, Van Lemmens C, Labadie H, Serfaty L; URSOMAF Group.
Department of Gastroenterology of Hopital Bicetre, Assistance
Publique-Hoopitaux de Paris, Paris, France.
The aim of our multicenter study was to assess the efficacy
of ursodeoxycholic acid (UDCA) on the survival of patients with
alcohol-induced cirrhosis and jaundice. We included patients with
histologically proven alcohol-induced cirrhosis and serum bilirubin
>50 micromol/L. After randomization, patients received either
UDCA (13-15 mg/kg/d) or a placebo for 6 months. Two hundred twenty-six
patients (113 in each group) were included in 24 centers. There
were 139 men and 87 women, mean age of 50.3 years. Seventy-four
percent had associated alcohol-induced hepatitis, and 24% received
a corticosteroid therapy. At inclusion, the 2 groups were comparable
for the main clinical and biologic parameters, but serum bilirubin
was higher in the UDCA group than in the placebo group (163 micromol/L
vs. 145 micromol/L, P <.03). The percentage of patients lost
at follow-up or who resumed their alcoholism during the study
was comparable in the 2 groups. During the study, 55 patients
died, 35 in the UDCA group and 20 in the placebo group. In the
intention to treat analysis, the probability of survival at 6
months (Kaplan-Meier method) was lower in the UDCA than in the
P group (69% vs. 82%, respectively; P =.04, log-rank test). After
adjustment on the bilirubin level at entry (Cox model), the independent
predictive value of the treatment group did not reach the statistical
level (RR = 1.64, CI 0.85-2.85; P =.077). In conclusion, UDCA
administered at the dose recommended in primary biliary cirrhosis
has no beneficial effect on the 6-month survival of patients with
severe alcohol-induced cirrhosis. An inappropriate dosage of UDCA
cannot be excluded as an explanation for the lack of therapeutic
benefit.
-----
Gastroenterology. 2003 Mar;124(3):778-90.
Oxidants and antioxidants in alcohol-induced liver
disease.
Arteel GE.
Department of Pharmacology and Toxicology, University of Louisville
Health Sciences Center, Louisville, Kentucky, USA. gavin.arteel@lousville.edu
Although there are numerous experimental data indicating that
oxidative stress plays a role in the initiation and progression
of alcohol-induced liver disease (ALD), this work has yet to translate
into an accepted antioxidant therapy for ALD in humans. With a
better understanding of the mechanisms by which oxidative stress
leads to liver damage during alcohol exposure, therapies that
are more targeted at the cellular/molecular level may be applied
in the clinic with potentially greater success. This article discusses
the general concepts of oxidative stress and how it relates to
current hypotheses in alcohol-induced liver injury, as well as
lists several key questions that remain to be addressed in this
field: (1) Which prooxidants are involved in ALD? (2) What are
the sources of prooxidants in the liver during alcohol exposure?
(3) How are oxidants involved in alcohol-induced liver injury?
(4) Can a rational and effective antioxidant therapy against ALD
be developed?
-----
Cochrane Database Syst Rev. 2003;(1):CD003045.
Anabolic-androgenic steroids for alcoholic liver
disease.
Rambaldi A, Iaquinto G, Gluud C.
Copenhagen Trial Unit, Centre for Clinical Intervention Research,
Copenhagen University Hospital, H:S Rigshopitalet, Blegdamsvej
9, Department 7201, Copenhagen, Denmark, DK-2100. arambaldi@hotmail.com
BACKGROUND: Alcohol is one of the most common causes of liver
disease in the Western World today. Randomised clinical trials
have examined the effects of anabolic-androgenic steroids for
alcoholic liver disease. OBJECTIVES: The objectives were to assess
the beneficial and harmful effects of anabolic-androgenic steroids
for patients with alcoholic liver disease based on the results
of randomised clinical trials. SEARCH STRATEGY: The Cochrane Hepato-Biliary
Group Controlled Trials Register, The Cochrane Controlled Trials
Register on The Cochrane Library, MEDLINE, EMBASE, and full text
searches were combined (all searched December 2001). Manufacturers
and researchers in the field were also contacted. SELECTION CRITERIA:
Only randomised clinical trials studying patients with alcoholic
steatosis, alcoholic fibrosis, alcoholic hepatitis, and/or alcoholic
cirrhosis were included. Interventions encompassed anabolic-androgenic
steroids at any dose or duration versus placebo or no intervention.
The trials could be double blind, single blind, or unblinded.
The trials could be unpublished or published and no language limitations
were applied. DATA COLLECTION AND ANALYSIS: All analyses were
performed according to the intention-to-treat method. The statistical
package (RevMan and MetaView) provided by the Cochrane Collaboration
was used. The methodological quality of the randomised clinical
trials was evaluated by components of methodological quality.
MAIN RESULTS: Combining the results of five randomised clinical
trials randomising 499 patients with alcoholic hepatitis and/or
cirrhosis demonstrated no significant effects of anabolic-androgenic
steroids on mortality (relative risk (RR) 0.96, 95% confidence
interval (CI) 0.72 to 1.28), liver related mortality (RR 0.83,
95% CI 0.60 to 1.15), complications of liver disease (RR 1.25,
95% CI 0.74 to 2.10), and liver histology. Further, anabolic-androgenic
steroids did not significantly affect a number of other outcome
measures. Anabolic-androgenic steroids were not associated with
a significantly increased risk of non-serious adverse events but
with the seldom occurrence of serious adverse events (RR 4.54,
95% CI 0.57 to 36.30). REVIEWER'S CONCLUSIONS: This systematic
review could not demonstrate any significant beneficial effects
of anabolic-androgenic steroids on any clinically important outcomes
(mortality, liver related mortality, liver complications, and
histology) of patients with alcoholic liver disease.
-----
Clin Ter. 2002 Sep-Oct;153(5):305-7.
[Use of ursodeoxycholic acid combined with silymarin
in the treatment of chronic ethyl-toxic hepatopathy]
[Article in Italian]
Bettini R, Gorini M.
Ospedale di Circolo, Universita degli Studi dell'Insubria, Varese,
Italia.
30 patients, affected by chronic ethylic hepatopathy, were
treated with 450 mg/daily of ursodeoxycholic acid (UDCA): after
six months, a significant decrease of serum hepatic enzymes was
noted. The addition of silymarin (400 mg/daily) to UDCA in other
30 patients, induced a further improvement of hepatic function.
-----
J Ethnopharmacol. 2003 Jan;84(1):47-50.
Liv.52 in alcoholic liver disease: a prospective,
controlled trial.
de Silva HA, Saparamadu PA, Thabrew MI, Pathmeswaran A, Fonseka
MM, de Silva HJ.
Department of Pharmacology, Faculty of Medicine, University of
Kelaniya, PO Box 6, Thalagolla Road, Ragama, Sri Lanka. asitades@hotmail.com
Liv.52, a hepatoprotective agent of herbal origin, is used
empirically for the treatment of alcoholic liver disease in Sri
Lanka. We conducted a controlled trial to assess the efficacy
of Liv.52 in patients with alcoholic liver disease. Patients with
evidence of alcoholic liver disease attending outpatient clinics
were included in a prospective, double blind, randomized, placebo
controlled trial. During the trial period, 80 patients who fulfilled
inclusion criteria were randomly assigned Liv.52 (cases; n = 40)
or placebo (controls) the recommended dose of three capsules twice
daily for 6 months. All patients underwent clinical examination
(for which a clinical score was computed), and laboratory investigations
for routine blood chemistry and liver function before commencement
of therapy (baseline). Thereafter, clinical assessments were done
monthly for 6 months, while laboratory investigations were done
after 1 and 6 months of therapy. There was no significant difference
in the age composition, alcohol intake and baseline liver function
between the two groups. The two-sample t-test was used to analyze
data obtained after 1 and 6 months of therapy against baseline
values. There was no significant difference in clinical outcome
and liver chemistry between the two groups at any time point.
There were no reports of adverse effects attributable to the drug.
Our results suggest that Liv.52 may not be useful in the management
of patients with alcohol induced liver disease. Copyright 2002
Elsevier Science Ireland Ltd.
-----
Eksp Klin Gastroenterol. 2002;(5):77-8, 129.
[Pathogenetic therapy of alcoholic liver disease]
[Article in Russian]
Volchkova EV.
I.M. Sechenov Moscow Medical Academy.
Ademetionine (Geptral) can be recommended both for reducing
acute attacks of alcoholic hepatitis and for a supporting therapy
in patients with chronic liver lesions of the toxic genesis, taking
into account its vast positive effect on the liver.
-----
Liver. 2002;22 Suppl 2:63-8.
Emerging indications for MARS dialysis.
Schachschal G, Morgera S, Kupferling S, Neumayer HH, Lochs H,
Schmidt HH.
Charite (CCM), Medzinische Klinik mit Schwerpunkt fur Gastroenterologie
und Hepatology, Medzinische Fakultat der Humboldt-Universitat
zu Berlin, Germany. schachschal@web.de
MARS stands for Molecular Adsorbent Recirculating System and
represents an interesting option in treating patients with liver
disease. There is still little known about the best time point
of initiating this treatment and the exact selection criteria
for patients who may benefit from this therapy. The list of potential
applications using this procedure is expanding. We report on the
experience in seven patients being treated with MARS dialysis
for chronic cholestatic liver disease and acute on chronic liver
failure. From August 2000 to October 2001 seven patients received
27 MARS treatments in our clinic, ranging from 2 to 12 treatments
per subject. Presented cases were diagnosed as steatohepatitis
because of alcoholism (n = 3), vanishing bile duct disease (n
= 1), metabolic liver disease (n = 1), primary biliary cirrhosis
(n = 1) and drug-induced hepatitis (n = 1). Based on this experience,
we discuss the ongoing questions of various indications and the
decision to initiate MARS dialysis.
-----
Alcohol. 2002 Jul;27(3):151-4.
Role of S-adenosyl-L-methionine in the treatment
of alcoholic liver disease: introduction and
summary of the symposium.
Purohit V, Russo D.
Biomedical Research Branch/Division of Basic Research, National
Institute on Alcohol Abuse and Alcoholism, National Institutes
of Health, 6000 Executive Boulevard, Suite 402, Bethesda, MD 20892-7003,
USA. vpurohit@willco.niaaa.nih.gov
The National Institute on Alcohol Abuse and Alcoholism and
the Office of Dietary Supplements, National Institutes of Health,
sponsored a symposium on "Role of S-Adenosyl-L-Methionine
(SAMe) in the Treatment of Alcoholic Liver Disease" in Bethesda,
Maryland, September 2001. Alcoholic liver disease (ALD) is a major
cause of illness and death in the United States. Oxidant stress
plays a key role in pathogenesis of liver disease. S-Adenosyl-L-methionine,
a dietary supplement, is the methyl donor for biochemical methylation
reactions and a precursor of glutathione, the main hepatocellular
antioxidant. S-Adenosyl-L-methionine has been shown to attenuate
liver injury caused by alcohol and other hepatotoxins in some
animal models. Understanding the mechanisms by which SAMe attenuates
liver injury caused by alcohol may provide useful information
for full-scale human clinical trials. For this symposium, seven
speakers were invited to address the following issues: (1) impaired
methionine metabolism in alcoholic liver injury; (2) regulation
of liver function by SAMe; (3) folate deficiency, methionine metabolism,
and alcoholic liver injury; (4) attenuating effect of SAMe on
ALD in experimental animals; (5) SAMe and mitochondrial glutathione
depletion in ALD; (6) SAMe and cytokine production in liver injury;
and (7) role of SAMe in the prevention of hepatocarcinogenesis.
The presentations of this symposium support the suggestion that
SAMe may have potential to treat ALD by (1) acting as a precursor
of antioxidant glutathione, (2) repairing mitochondrial glutathione
transport system, (3) attenuating toxic effects of proinflammatory
cytokines, and (4) increasing DNA methylation. Further studies
are required to evaluate the safety and effectiveness of SAMe
treatment.
-----
Ir Med J. 2002 Apr;95(4):108-9, 111.
Severe acute alcoholic hepatitis: an audit of
medical treatment.
O'Keefee C, McCormick PA.
Liver Unit, St Vincent's University Hospital, Dublin, Ireland.
Despite advances in treatment, severe alcoholic hepatitis is
still associated with a high mortality rate of 30% to 40%. Nutritional
support and steroids in selected patients are believed to improve
prognosis. In controlled trials steroids have been beneficial
in patients with a discriminant function (DF) value >32 or
spontaneous hepatic encephalopathy. The aim of this study was
to investigate current practice and outcomes in the treatment
of acute alcoholic hepatitis. We retrospectively studied patients
admitted to our unit with acute alcoholic hepatitis over a 4 year
period. Forty-three patients with acute alcoholic hepatitis were
admitted between 1994 and 1997. Overall mortality was 26% (11/43).
Only 5 patients were treated with steroids of whom 1 died (mortality
20%). Liver biopsy was available in 19/43 of whom 12/19 (63%)
had underlying cirrhosis in addition to alcoholic hepatitis. Mortality
was higher in patients with a discriminant function of greater
than 32 but not significantly so (32%: 8/25 vs 17%: 3/18 p = 0.31).
A discriminant function of greater than 32 and contra-indications
to steroid use was the best predictor of mortality (60% 6/10 P
= 0.0096) compared to patients not fulfilling these criteria In
this study overall mortality was comparable with published reports.
Of interest was the relatively low liver biopsy rate and the fact
that steroids were used in only a minority of eligible patients.
We found that mortality was concentrated in a subgroup of patients
with a discriminant function value >32 and contra-indications
to steroids. These criteria appear to identify a high-risk subgroup
of patients. If confirmed, experimental treatments need to be
targeted at this group to improve the overall prognosis of acute
alcoholic hepatitis.
-----
Cochrane Database Syst Rev. 2002;(2):CD002800.
Propylthiouracil for alcoholic liver disease.
Rambaldi A, Gluud C.
Copenhagen Trial Unit, Centre for Clinical Intervention Research,
Copenhagen University Hospital, H:S Rigshopitalet, Blegdamsvej
9, Copenhagen, Denmark, DK-2100. arambaldi@hotmail.com
BACKGROUND: Alcohol is the most common cause of liver disease
in the Western world today. Randomised clinical trials have addressed
the question whether propylthiouracil has any efficacy in patients
with alcoholic liver disease. OBJECTIVES: The objectives were
to assess the efficacy of propylthiouracil on mortality, clinical
symptoms and complications, liver biochemistry, and liver histology
in patients with alcoholic liver disease. Adverse events were
also analysed. SEARCH STRATEGY: The Cochrane Hepato-Biliary Group
Controlled Trials Register (searched July 2001), The Cochrane
Controlled Trials Register (Cochrane Library Issue 3, 2001), MEDLINE
(January 1966 to July 2001), EMBASE (January 1985 to July 2001)
were searched. These electronic searches were combined with full
text searches. Manufacturers and researchers in the field were
also contacted. SELECTION CRITERIA: Randomised clinical trials
studying patients with alcoholic steatosis, alcoholic fibrosis,
alcoholic hepatitis, and/or alcoholic cirrhosis were included.
Interventions encompassed propylthiouracil at any dose versus
placebo or no intervention. The trials could be double-blind,
single-blind, or unblinded. The trials could be unpublished or
published as an article, an abstract, or a letter and no language
limitations were applied. DATA COLLECTION AND ANALYSIS: All analyses
were performed according to the intention-to-treat method. The
statistical package (RevMan and MetaView) provided by the Cochrane
Collaboration was used. The methodological quality of the randomised
clinical trials was evaluated by components of quality and the
Jadad-scale. MAIN RESULTS: Combining the results of six randomised
clinical trials including 710 patients demonstrated no significant
effects of propylthiouracil versus placebo on mortality (Peto
odds ratio (OR) 0.91, 95% confidence interval (CI) 0.59 to 1.40),
liver related mortality (OR 0.78, 95% CI 0.45 to 1.33), complications
of the liver disease (OR 1.14, 95% CI 0.58 to 2.24), or liver
histology. Propylthiouracil was associated with a non significant
trend towards an increased risk of non-serious adverse events
(OR 1.49, 95% CI 0.74 to 2.99) and with the seldom occurrence
of serious adverse events (leukopenia). REVIEWER'S CONCLUSIONS:
This systematic review could not demonstrate any significant efficacy
of propylthiouracil on any clinically important outcomes (mortality,
liver related mortality, liver complications, and liver histology)
of patients with alcoholic liver disease and propylthiouracil
was associated with adverse events. Accordingly, there is no evidence
for using propylthiouracil for alcoholic liver disease outside
randomised clinical trials.
-----
Alcohol Clin Exp Res 2002 May;26(5):731-6
Pathogenesis of alcoholic liver diseaserecent
advances.
Nanji AA, Su GL, Laposata M, French SW.
Department of Pathology and Center for the Study of Liver Diseases,
The University of Hong Kong and Queen Mary Hospital. ananji@pathology.hku.hk
The article summarizes the proceedings of a symposium on recent
advances in research on the pathogenesis of alcoholic liver disease
at the 2001 RSA meeting in Montreal, Canada. The chairs were Amin
A. Nanji and Samuel W. French. The presentations were (1) Role
of inflammatory mediators in alcoholic liver injury by Amin A.
Nanji, (2) Role of endotoxin, lipopolysaccharide binding protein,
CD14 and Toll receptors in alcoholic liver injury by Grace Su,
(3) Fatty acid ethyl esters: toxicity, metabolism and markers
of ethanol intake by Michael Laposata, and (4) Cyclic changes
in gene expression when rats are fed alcohol at a constant rate
by Samuel W. French.
-----
Alcohol 2002 May;27(1):7-11
Liver disease in alcohol abusers. clinical perspective.
Diehl AM.
The Johns Hopkins University, 912 Ross Building, 720 Rutland Street,
21205, Baltimore, MD, USA
Alcoholic liver disease remains one of the most common causes
of chronic liver disease in the world. The severity of liver damage
related to alcohol varies among different individuals and even
within any given individual at different times. Certain symptoms,
signs, and abnormal findings on laboratory tests help clinicians
distinguish among the various stages of alcohol-induced liver
damage and, thus, have some prognostic significance. However,
because all stages of this disease can persist for decades without
causing overt evidence of serious liver damage, liver biopsy is
the only test that can reliably distinguish among the various
stages of alcohol-induced liver damage in many patients. The therapy
of alcohol-induced liver disease varies according to the severity
of histologic liver damage and clinically overt portal hypertension
and hepatic dysfunction. Abstinence from alcohol consumption improves
the clinical outcome of all stages of alcoholic liver disease.
However, only two agents have proved to lessen early mortality
in patients who require hospitalization for acutely decompensated
alcoholic liver disease. It is not known whether either of these
agents or other treatments prevent the development of alcohol-induced
cirrhosis or improve the survival of patients who have already
developed cirrhosis.
-----
Int J Surg Pathol 2002 Apr;10(2):115-22
Liver transplantation for alcoholic liver disease
with or without hepatitis C.
Goldar-Najafi A, Gordon FD, Lewis WD, Pomfret E, Pomposelli JJ,
Jenkins RL, Khettry U.
Department of Pathology, Beth Israel Deaconess Medical Center
& Harvard Medical School, Boston MA, USA.
Alcoholic cirrhosis with or without hepatitis C is a common
indication for liver transplantation (LT). Comparative post-LT
data for the 2 groups are not available. Our aim is to compare
the clinicopathologic features of patients with alcoholic liver
disease (ETOH) and ETOH/HCV at the time of and after LT and to
determine the impact of concomitant hepatitis C virus (HCV) on
ETOH patients undergoing LT. A comparative clinical and pathologic
analysis at LT and after LT was performed for 56 patients with
ETOH and 32 patients with ETOH/HCV. All 88 had cirrhosis at LT.
Other native liver features for ETOH and ETOH/HCV, respectively,
were: >2+ inflammation 50/56 and 26/32, Mallory's hyalin 12/56
and 6/32, steatosis 9/56 and 7/32, large cell dysplasia 12/56
and 6/32, hepatoma 4/56 and 4/32, iron deposition 24/56 and 12/32;
none was statistically significant. The post-LT findings for ETOH
and ETOH/HCV were as follows: 1-year survival 93% and 97%; alive
36/56 (419-4,348 days) and 27/32 (488-5,516 days); deaths 20/56
and 5/32; ETOH recurrence 5/56 (all alive) and 3/32 (1 dead);
post-LT HCV 4/56 (acquired) and 22/32 (recurrent). Native liver
histology in ETOH and ETOH/HCV patients was similar. Post-LT HCV
recurrence was common (69%) in ETOH/HCV patients but resulted
in death in only 6%. Post-LT ETOH recurrence was uncommon (9%)
and progression to liver failure was rare (1.1%). Post-LT outcome
for ETOH was excellent, and concomitant HCV did not affect survival.
-----
Free Radic Biol Med 2002 Mar 15;32(6):487-91
Role of mitochondria in alcoholic liver injury.
Adachi M, Ishii H.
Department of Internal Medicine, Keio University School of Medicine,
35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Oxidative stress and oxygen-derived free radicals are well
known to play an important role in the pathogenesis of ethanol-associated
liver injury. Active oxidants produced during ethanol metabolism
induce mitochondrial membrane depolarization and permeability
changes in cultured hepatocytes. These mitochondrial alterations
(loss of DeltaPsim and mitochondrial permeability transition [MPT])
are now recognized as a key step in apoptosis. In recent studies,
including ours, the MPT has been identified as a key step for
the induction of mitochondrial cytochrome c release and caspase
activation by ethanol. In addition, chronic and/or acute ethanol
modulates intracellular, especially mitochondrial, antioxidant
levels, leading to the increased susceptibility to alcoholic liver
injury induced by several apoptotic stimuli. In this review, we
address the mechanism of mitochondrial alterations and liver injury
induced by ethanol.
-----
J Ayub Med Coll Abbottabad 2001 Jul-Sep;13(3):19-21
Metabolic effects of alcoholism and its relationship
with alcoholic liver disease.
Tabassum F, Khurshid R, Karim S, Akhtar MS.
Department of Chemistry, University of Punjab, Lahore.
BACKGROUND: Chronic and excessive ethanol consumption is associated
with cellular proliferation, fibrosis, cirrhosis and cancer of
liver. It was planned to study the effect of alcohol on different
biochemical parameters as distribution of these parameters may
lead to several complications in gastrointestinal tract, liver,
kidney, brain etc. METHODS: 50 alcoholic males and 20 normal subject
(with no history of alcohol) with an age ranges 30-45 years were
included in the study. Biochemical parameters related to liver
were estimated by standard kit. Besides, ions and electrolytes
were also determined by standard kit and flame photometry. RESULTS:
It was observed that level of alkaline phosphatase, alanine transferase,
protein and globulin were significantly increased as compared
to normal subjects. Besides, ions like calcium and phosphate were
significantly decreased. On the other hand the level of potassium
and magnesium was significantly decreased as compared to normal
subjects. Electrophoresis shows a protein of 100 Kda is present
in the patients sample as compared to control subjects. CONCLUSION:
It is therefore concluded that abnormal biochemical function of
liver in alcoholism can lead to several complications, hence further
research is needed to reach a definite conclusion.
-----
Hepatology 2002 Mar;35(3):635-8
Risk factors of fibrosis in alcohol-induced liver
disease.
Raynard B, Balian A, Fallik D, Capron F, Bedossa P, Chaput JC,
Naveau S.
Service d'Hepato-Gastroenterologie, Hopital Antoine Beclere, 157
rue de la Porte de Trivaux, 92141 Clamart Cedex, France.
In patients with nonalcoholic steatohepatitis (NASH), age,
obesity, and diabetes mellitus are independent predictors of the
degree of fibrosis. The relative risk for fibrosis adjusted for
sex was also associated with increasing grade of Perls stain.
The aim of this study was to determine whether the risk factors
for fibrosis described in NASH are also risk factors in alcohol-induced
liver disease. A total of 268 alcoholic patients with negative
hepatitis B virus and hepatitis C virus serology underwent liver
biopsy. Fibrosis was assessed semiquantitatively by a score fluctuating
between 0 to 8. Liver iron overload was assessed by Perls staining
and graded in 4 classes. We have used multivariate regression
with partial correlation analysis to assess the variability of
fibrosis score according to the value of 7 variables: sex, age,
body mass index (BMI) in the past year before the hospitalization
when the patient was asymptomatic, daily alcohol intake over the
past 5 years, total duration of alcohol abuse, Perls grade, and
blood glucose level. In the multivariate regression, fibrosis
score was positively correlated with age (P =.001), BMI (P =.002),
female sex (P <.05), Perls grade (P <.05), and blood glucose
level (P <.05). Twenty percent of the variability of fibrosis
score was explained by the 7 variables. In conclusion, after adjustment
for daily alcohol intake and total duration of alcohol abuse,
BMI, Perls grade, and blood glucose are also independent risk
factors for fibrosis in alcohol-induced liver disease, raising
therapeutic implications for the management of these patients.
-----
Alcohol Clin Exp Res 2002 Nov;26(11):1692-6
Serum ubiquitin-protein conjugates in normal subjects
and patients with alcoholic liver diseases: immunoaffinity isolation
and electrophoretic mobility.
Takagi M, Yamauchi M, Takada And K, Ohkawa K.
BACKGROUND We previously reported that levels of multiubiquitin
chains, representing ubiquitin-protein conjugates, were significantly
higher in sera of patients with alcoholic liver cirrhosis than
in normal subjects and patients with other types of alcoholic
liver disease.METHODS To characterize them, ubiquitin-immunoreactive
proteins were purified from sera of healthy human volunteers and
patients with alcoholic liver diseases by using affinity chromatography
on a Sepharose column containing an immobilized monoclonal antibody
recognizing conjugated ubiquitin.RESULTS SDS-PAGE analysis followed
by Western blotting revealed that the immunoaffinity-purified
proteins mainly contained multiple components with molecular masses
greater than 60 kDa, almost all of which were immunostained with
the ubiquitin antibody. This size heterogeneity was in agreement
with the property of ubiquitin-protein conjugates in all cells
examined. These results indicate that the immunoaffinity-purified
serum proteins are polyubiquitinated proteins presumably derived
from some somatic cells. These ubiquitinated proteins obtained
from the alcoholic cirrhosis patients were stained more strongly
than those from the normal subjects and patients with other types
of alcoholic liver disease, although equal amounts of multiubiquitin
chains were analyzed simultaneously. In addition, marked differences
were observed in the two-dimensional PAGE pattern of the ubiquitin-protein
conjugates purified from the alcoholic cirrhosis patient serum
compared with those from the normal human serum: four distinct
broad spots (presumably polyubiquitin-protein complexes) were
observed only in the former.CONCLUSIONS This is the first report
on isolation of ubiquitin-protein conjugates from human serum,
and it indicates that not only their levels, but also their molecular
compositions, were greatly affected by alcoholic cirrhosis.
-----
Alcohol 2002 Jul;27(3):185
S-Adenosylmethionine, cytokines, and alcoholic
liver disease.
McClain C, Hill D, Song Z, Chawla R, Watson W, Chen T, Barve S.
Department of Medicine, University of Louisville Medical Center,
40292, Louisville, KY, USA
Hepatic deficiency of S-adenosylmethionine (AdoMet) is a critical
acquired metabolic abnormality in alcoholic liver disease (ALD)
and in many experimental models of hepatotoxicity. Subnormal AdoMet,
elevated serum tumor necrosis factor (TNF), and endotoxemia (LPS)
are hallmarks of ALD and experimental liver injury. AdoMet deficiency
is attributed to its subnormal synthesis, but mechanisms for increased
TNF are not known. AdoMet deficiency may affect the critical balance
of proinflammatory (e.g., TNF) and antiinflammatory [e.g., interleukin
(IL)-10] cytokines. Rats maintained on a choline-deficient diet
with limited amounts of methionine (MCD diet) developed AdoMet
deficiency. When challenged with LPS, rats fed MCD diet had significantly
increased serum TNF levels and worse liver injury compared with
findings for controls. Exogenous AdoMet attenuated liver injury
and serum TNF levels. Results of in vitro studies with the use
of RAW 264.7 cells demonstrated that exogenous AdoMet supplementation
lowered LPS-induced TNF formation in a dose-dependent manner,
and AdoMet deficiency enhanced TNF secretion and TNF gene expression.
AdoMet also dose-dependently decreased LPS-stimulated TNF production
from monocytes obtained from patients with alcoholic hepatitis.
Finally, AdoMet supplementation stimulated production of the antiinflammatory
cytokine IL-10. Interleukin-10 plays a critical role in the modulation
of TNF production, and IL-10 may inhibit hepatic fibrosis. This
article will review (1) the role of AdoMet in ALD/liver injury,
(2) the role of TNF/proinflammatory cytokines in ALD, (3) potential
roles of AdoMet in TNF/proinflammatory cytokine regulation in
ALD, and (4) conclusions and future directions.
-----
Alcohol 2002 Jul;27(3):169
Folate deficiency, methionine metabolism, and
alcoholic liver disease.
Halsted C, Villanueva J, Devlin A.
University of California, Davis, 95616, Davis, CA, USA
Methionine metabolism is regulated by folate, and both folate
deficiency and abnormal hepatic methionine metabolism are recognized
features of alcoholic liver disease (ALD). Previously, histological
features of ALD were induced in castrated male micropigs fed diets
containing ethanol at 40% of kilocalories for 12 months, whereas
in male micropigs fed the same diets for 12 months abnormal methionine
metabolism and hepatocellular apoptosis developed. Folate deficiency
may promote the development of ALD by accentuating abnormal methionine
metabolism. Intact male micropigs received eucaloric diets that
were folate sufficient, folate deficient, or each containing 40%
of kilocalories as ethanol for 14 weeks. Folate deficiency alone
reduced hepatic folates by one half, and ethanol feeding alone
reduced methionine synthase, S-adenosylmethionine (SAM), and glutathione
(GSH) levels and elevated plasma malondialdehyde (MDA) levels.
The combined regimen elevated plasma homocysteine, hepatic S-adenosylhomocysteine
(SAH), urinary 8-hydroxy-2-deoxyguanosine (oxy(8)dG), an index
of DNA oxidation, and serum aspartate aminotransferase (AST) levels.
Terminal hepatic histopathologic characteristics included typical
features of steatonecrosis and focal inflammation in pigs fed
the combined diet, with no changes in the other groups. Hepatic
SAM levels correlated with those of GSH, whereas urinary oxy(8)dG
and plasma MDA levels correlated with the SAM:SAH ratio and to
hepatic GSH. The results demonstrate the linkage of abnormal methionine
metabolism to products of DNA and lipid oxidation and to liver
injury. The finding of steatonecrosis and focal inflammation only
in the combined diet group supports the suggestion that folate
deficiency promotes and folate sufficiency protects against the
early onset of methionine cycle-mediated ALD.
-----
Alcohol 2002 Jul;27(3):155
Role of abnormal methionine metabolism in alcoholic
liver injury.
Lu S, Tsukamoto H, Mato J.
USC Liver Disease Research Center, USC-UCLA Research Center for
Alcoholic Liver and Pancreatic Diseases, Keck School of Medicine
USC, 90033, Los Angeles, CA, USA
Methionine matabolism occurs mostly in the liver through the
formation of S-adenosylmethionine (SAM) in a reaction catalyzed
by methionine adenosyltransferase (MAT). S-adenosylmethionine
is the principal biologic methyl donor, a precursor for polyamines,
and in liver, it is also a precursor for reduced glutathione (GSH).
Liver-specific and non-liver-specific MAT are products of two
different genes, MAT1A and MAT2A, respectively. Mature liver expresses
MAT1A, whereas MAT2A is expressed in extrahepatic tissues and
induced during liver growth and de-differentiation. The type of
MAT expressed by the cell affects the steady-state SAM level,
DNA methylation, and growth rate. This has been demonstrated further
by using the MAT1A knockout mouse model in which hepatic SAM and
GSH levels decrease, the liver becomes larger and more susceptible
to injury, and steatohepatitis develops spontaneously. Altered
methionine metabolism in alcoholic liver disease results in decreased
transmethylation and transsulfuration, changes that may play important
pathogenic roles. Major changes include a relative switch in MAT
expression; decreased hepatic SAM, GSH, and DNA methylation levels;
decreased homocysteine metabolism; and hyperhomocysteinemia. Consequences
of hepatic DNA hypomethylation include increased expression of
c-myc and DNA strand break accumulation. One possible consequence
of hyperhomocysteinemia is increased fibrogenesis. Abnormal methionine
metabolism may also occur in Kupffer cells, which express both
forms of MAT. If SAM levels also decrease in these cells, this
may contribute to the induction of tumor necrosis factor (TNF)
expression and release. In summary, altered hepatic methionine
metabolism can have serious consequences that affect not only
hepatocytes, but also hepatic stellate and Kupffer cells. These
changes can lead to impaired antioxidant defense, altered gene
expression, promotion of fibrogenesis, and even hepatocarcinogenesis.
-----
Alcohol 2002 Jul;27(3):151
Role of S-adenosyl-L-methionine in the treatment
of alcoholic liver disease. introduction and
summary of the symposium.
Purohit V, Russo D.
Biomedical Research Branch/Division of Basic Research, National
Institute on Alcohol Abuse and Alcoholism, National Institutes
of Health, 6000 Executive Boulevard, Suite 402, 20892-7003, Bethesda,
MD, USA
The National Institute on Alcohol Abuse and Alcoholism and
the Office of Dietary Supplements, National Institutes of Health,
sponsored a symposium on "Role of S-Adenosyl-L-Methionine
(SAMe) in the Treatment of Alcoholic Liver Disease" in Bethesda,
Maryland, September 2001. Alcoholic liver disease (ALD) is a major
cause of illness and death in the United States. Oxidant stress
plays a key role in pathogenesis of liver disease. S-Adenosyl-L-methionine,
a dietary supplement, is the methyl donor for biochemical methylation
reactions and a precursor of glutathione, the main hepatocellular
antioxidant. S-Adenosyl-L-methionine has been shown to attenuate
liver injury caused by alcohol and other hepatotoxins in some
animal models. Understanding the mechanisms by which SAMe attenuates
liver injury caused by alcohol may provide useful information
for full-scale human clinical trials. For this symposium, seven
speakers were invited to address the following issues: (1) impaired
methionine metabolism in alcoholic liver injury; (2) regulation
of liver function by SAMe; (3) folate deficiency, methionine metabolism,
and alcoholic liver injury; (4) attenuating effect of SAMe on
ALD in experimental animals; (5) SAMe and mitochondrial glutathione
depletion in ALD; (6) SAMe and cytokine production in liver injury;
and (7) role of SAMe in the prevention of hepatocarcinogenesis.
The presentations of this symposium support the suggestion that
SAMe may have potential to treat ALD by (1) acting as a precursor
of antioxidant glutathione, (2) repairing mitochondrial glutathione
transport system, (3) attenuating toxic effects of proinflammatory
cytokines, and (4) increasing DNA methylation. Further studies
are required to evaluate the safety and effectiveness of SAMe
treatment.
-----
Liver 2002 Jun;22(3):245-51
Single nucleotide polymorphisms and microsatellite
alleles of tumor necrosis factor alpha and interleukin-10 genes
and the risk of advanced chronic alcoholic liver disease.
Ladero JM, Fernandez-Arquero M, I Tudela J, Agundez JA, Diaz-Rubio
M, Benitez J, De La Concha EG.
Departments of Gastroenterology and Immunology, Hospital Clinico
San Carlos, Medical School, Complutense University, Madrid, and
Department of Pharmacology, Medical School, University of Extremadura,
Badajoz, Spain.
BACKGROUND: Only a minority of ethanol abusers develop advanced
chronic alcoholic liver disease (CALD). In CALD there is a disbalance
between TNFalpha and IL-10, which may be modulated by several
polymorphisms at both genetic loci. Our aim has been to elucidate
the possible relation between these polymorphisms and the risk
of CALD. PATIENTS AND METHODS: 147 patients with advanced CALD
and 355 healthy controls (all white Spaniards) were included.
TNFalpha biallelic single nucleotide polymorphisms (SNP) at positions
-238, -308, and -376 and IL-10 biallelic SNP at positions -597,
- 824, and - 1087 were investigated by polymerase chain reaction
(PCR) amplification and dot blot hybridization. Moreover, polymorphic
microsatellites TNFa, TNFb, IL-10.R and IL-10.G were investigated
in a multiplex PCR and alleles were estimated in an automatic
sequencer. RESULTS: No differences were found in the distribution
of any of the studied polymorphisms, except by an excess of the
haplotype formed by the allele 11 of the microsatellite IL-10.G
and the GCC arrangement of the SNPs at the promoter of IL-10 gene
in patients (15.7 vs. 8.24%, odds ratio: 2.08, 95% C.I. = 1.31-3.31).
CONCLUSIONS: The studied polymorphisms at TNFalpha and IL-10 genetic
loci are not clearly related to the risk of CALD. The excess of
G11-GCC haplotype found in CALD patients needs independent confirmation.
-----
Alcohol 2002 May;27(1):53-61
Monocyte activation in alcoholic liver disease.
McClain CJ, Hill DB, Song Z, Deaciuc I, Barve S.
Department of Medicine, University of Louisville Medical Center,
40292, Louisville, KY, USA
Activated monocytes and macrophages have been postulated to
play an important role in the pathogenesis of alcoholic liver
disease (ALD). Monocyte activation can be documented by measurement
of neopterin, adhesion cell molecules, and certain proinflammatory
cytokines and chemokines. We first became interested in the role
of monocytes and monocyte-derived cytokines in ALD in relation
to altered zinc metabolism that occurs regularly in ALD. Patients
with ALD have hypozincemia, which responds poorly to oral zinc
supplementation. We have shown that in ALD monocytes make a low-molecular-weight
substance that, when injected into rabbits, causes prominent hypozincemia.
Subsequently, multiple cytokines [especially tumor necrosis factor
(TNF) and interleukin (IL)-8] have been shown to be overproduced
by monocytes in ALD. We initially showed that monocytes in ALD
spontaneously produce TNF and overproduce TNF in response to a
lipopolysaccharide (LPS) stimulus, and this could be attenuated
by antioxidants in vitro and in vivo. Alterations in the endotoxin-binding
protein LPS-binding protein, in CD14, and in the endotoxin receptor
Toll-like receptor 4 all may play roles in enhanced proinflammatory
cytokine signaling in ALD. Moreover, several groups have documented
increased TNF receptor density in monocytes in ALD. Inadequate
negative regulation of TNF occurs at multiple levels in ALD. This
includes decreased monocyte production of the important antiinflammatory
cytokine IL-10 and blunted response to the antiinflammatory properties
of adenosine. Finally, generation of reactive oxygen species (which
occurs during alcohol metabolism) and products of lipid peroxidation
induce production of cytokines, such as TNF and IL-8. In conclusion,
there are multiple overlapping potential mechanisms for enhanced
proinflammatory cytokine production by monocytes in ALD. We postulate
that activation of monocytes and macrophages with subsequent proinflammatory
cytokine production plays an important role in certain metabolic
complications of ALD and is a component of the liver injury of
ALD.
-----
Postgrad Med J 2002 Mar;78(917):135-41
Liver transplantation for chronic liver disease:
advances and controversies in an era of organ shortages.
Prince MI, Hudson M.
Freeman Hospital Liver Unit, Freeman Hospital, Newcastle upon
Tyne, UK. Martin.prince@doctors.net.uk
Since liver transplantation was first performed in 1968 by
Starzl et al, advances in case selection, liver surgery, anaesthetics,
and immunotherapy have significantly increased the indications
for and success of this operation. Liver transplantation is now
a standard therapy for many end stage liver disorders as well
as acute liver failure. However, while demand for cadaveric organ
grafts has increased, in recent years the supply of organs has
fallen. This review addresses current controversies resulting
from this mismatch. In particular, methods for increasing graft
availability and difficulties arising from transplantation in
the context of alcohol related cirrhosis, primary liver tumours,
and hepatitis C are reviewed. Together these three indications
accounted for 42% of liver transplants performed for chronic liver
disease in the UK in 2000. Ethical frameworks for making decisions
on patients' suitability for liver transplantation have been developed
in both the USA and the UK and these are also reviewed.
-----
Free Radic Biol Med 2002 Jan 15;32(2):110-4
Free radical mechanisms in immune reactions associated
with alcoholic liver disease.
Albano E.
Department of Medical Sciences, University Amedeo Avogadro of
East Piedmont, Novara, Italy. albano@med.unipmn.it
Immune reactions toward the liver have been implicated in the
pathogenesis of alcoholic liver disease (ALD), however the antigens
involved are still poorly characterized. The contribution of free
radical mechanisms to the immune reactions associated with ALD
first emerged from the observation that the binding of hydroxyethyl
free radicals (HER) to hepatic proteins, including cytochrome
P4502E1 (CYP2E1), stimulates the production of specific antibodies
in both alcohol-fed rats and alcoholic patients. We have subsequently
observed that ALD patients have increased titers of antibodies
directed against protein adducts with different lipid peroxidation
products and antigens derived from the combination of malonildialdehyde
and acetaldehyde. Free radical mechanisms can also contribute
in promoting the autoimmune reactions often associated with ALD.
Indeed, we have observed that antiphospholipid antibodies present
in more than 50% of ALD patients recognize oxidized cardiolipin
complexed with beta2-glycoprotein 1. Furthermore, a strict association
between anti-HER IgG and the development of autoantibodies against
CYP2E1 indicates that CYP2E1 modification by HER might promote
anti-CYP2E1 autoreactivity in subjects with alcoholic cirrhosis.
Altogether, these observations suggest the importance of ethanol-induced
oxidative stress in stimulating immune reactions towards both
liver allo-and self-antigens.
-----
Hepatology 2002 Feb;35(2):425-32
Expression of interferon alfa signaling components
in human alcoholic liver disease.
Nguyen VA, Gao B.
Section on Liver Biology, Laboratory of Physiologic Studies, National
Institute on Alcohol Abuse and Alcoholism, National Institutes
of Health, Bethesda, MD 20892, USA.
Interferon alfa (IFN-alpha) is currently the only well-established
therapy for viral hepatitis. However, its effectiveness is much
reduced (<10%) in alcoholic patients. The mechanism underlying
this resistance is not fully understood. In this study, we examined
the expression of IFN-alpha signaling components and its inhibitory
factors in 9 alcoholic liver disease (ALD) and 8 healthy control
liver tissues. In comparison with normal control livers, expression
of IFN-beta, IFN-alpha receptor 1/2, Jak1, and Tyk2 remained unchanged
in ALD livers, whereas expression of IFN-alpha, signal transducer
and activator of transcription factor 1 (STAT1), and p48 were
up-regulated and expression of STAT2 was down-regulated. Expression
of antiviral MxA a karyophilic 75 kd protein induced by IFN in
mouse cells carrying the influenza virus resistance allele Mx(+)
and 2'-5' oligoadenylate synthetase (OAS) proteins was not regulated,
whereas expression of double-stranded RNA-activated protein kinase
(PKR) was decreased by 55% in ALD livers. Three families of inhibitory
factors for the JAK-STAT signaling pathway were examined in ALD
livers. Members of the suppressor of cytokine signaling (SOCS)
family, including SOCS 1, 2, 3, and CIS, and the protein tyrosine
phosphatases, including Shp-1, Shp-2, and CD45, were not up-regulated
in ALD livers, whereas the phosphorylation of and protein levels
of p42/44 mitogen-activated protein kinase (p42/44MAP kinase)
were increased about 3.9- and 3.2-fold in ALD livers in comparison
with normal control livers, respectively. In conclusion, these
findings suggest that chronic alcohol consumption down-regulates
STAT2 and PKR, but up-regulates p42/44 mitogen-activated protein
kinase (p42/44MAP kinase), which may cause down-regulation of
IFN-alpha signaling in the liver of ALD patients.
-----
Free Radic Biol Med 2002 Jan 1;32(1):11-6
Contribution of mitochondria to oxidative stress
associated with alcoholic liver disease.
Bailey SM, Cunningham CC.
Department of Environmental Health Sciences, School of Public
Health, University of Alabama at Birmingham, 1530 3rd Ave. South,
RPHB 317, Birmingham, AL 35294, USA. sbailey@ms.soph.uab.edu
The importance of oxidative stress in the development of alcoholic
liver disease has long been appreciated. The mechanism by which
ethanol triggers an increase in reactive oxygen species in the
liver is complex, however, recent findings suggest that the mitochondrion
may contribute significantly to the overall increase in oxidant
levels in hepatocytes exposed to ethanol acutely or chronically.
This review is focused on observations which indicate that the
ability of ethanol to increase mitochondrial reactive oxygen species
production is linked to its metabolism via oxidative processes
and/or ethanol-related alterations to the mitochondrial electron
transport chain. Furthermore, the capacity of ethanol-elicited
increases in reactive oxygen species to oxidatively modify and
inactivate mitochondrial proteins is highlighted as a mechanism
by which ethanol might further disrupt the structure and function
of mitochondria.
-----
Drugs 2001;61(14):2035-63
The use of silymarin in the treatment of liver
diseases.
Saller R, Meier R, Brignoli R.
Abteilung Naturheilkunde, University Hospital Zurich, Switzerland.
The high prevalence of liver diseases such as chronic hepatitis
and cirrhosis underscores the need for efficient and cost-effective
treatments. The potential benefit of silymarin (extracted from
the seeds of Silybum marianum or milk thistle) in the treatment
of liver diseases remains a controversial issue. Therefore, the
objective of this review is to assess the clinical efficacy and
safety of silymarin by application of systematic approach. 525
references were found in the databases, of which 84 papers were
retained for closer examination and 36 were deemed suitable for
detailed analysis. Silymarin has metabolic and cell-regulating
effects at concentrations found in clinical conditions, namely
carrier-mediated regulation of cell membrane permeability, inhibition
of the 5-lipoxygenase pathway, scavenging of reactive oxygen species
(ROS) of the R-OH type and action on DNA-expression, for example,
via suppression of nuclear factor (NF)-kappaB. Pooled data from
case record studies involving 452 patients with Amanita phalloides
poisoning show a highly significant difference in mortality in
favour of silibinin [the main isomer contained in silymarin] (mortality
9.8% vs 18.3% with standard treatment; p < 0.01). The available
trials in patients with toxic (e.g. solvents) or iatrogenic (e.g.
antispychotic or tacrine) liver diseases, which are mostly outdated
and underpowered, do not enable any valid conclusions to be drawn
on the value of silymarin. The exception is an improved clinical
tolerance of tacrine. In spite of some positive results in patients
with acute viral hepatitis, no formally valid conclusion can be
drawn regarding the value of silymarin in the treatment of these
infections. Although there were no clinical end-points in the
four trials considered in patients with alcoholic liver disease,
histological findings were reported as improved in two out of
two trials, improvement of prothrombin time was significant (two
trials pooled) and liver transaminase levels were consistently
lower in the silymarin-treated groups. Therefore, silymarin may
be of use as an adjuvant in the therapy of alcoholic liver disease.
Analysis was performed on five trials with a total of 602 patients
with liver cirrhosis. The evidence shows that, compared with placebo,
silymarin produces a nonsignificant reduction of total mortality
by -4.2% [odds ratio (OR) 0.75 (0.5 - 1.1)]; but that, on the
other hand, the use of silymarin leads to a significant reduction
in liver-related mortality of-7% [OR: 0.54 (0.3 - 0.9); p <
0.01]. An individual trial reported a reduction in the number
of patients with encephalopathy of -8.7% (p = 0.06). In one study
of patients with cirrhosis-related diabetes mellitus, the insulin
requirement was reduced by -25% (p < 0.01). We conclude that
available evidence suggests that silymarin may play a role in
the therapy of (alcoholic) liver cirrhosis. Silymarin is has a
good safety record and only rare case reports of gastrointestinal
disturbances and allergic skin rashes have been published. This
review does not aim to replace future prospective trials aiming
to provide the 'final' evidence of the efficacy of silymarin.
-----
Arch Intern Med 2001 Oct 8;161(18):2247-52
Effect of maximal daily doses of acetaminophen
on the liver of alcoholic patients: a randomized, double-blind,
placebo-controlled trial.
Kuffner EK, Dart RC, Bogdan GM, Hill RE, Casper E, Darton L.
Rocky Mountain Poison and Drug Center, 1010 Yosemite Cir, Denver,
CO 80230, USA. EKuffner@rmpdc.org
BACKGROUND: Retrospective reports suggest that therapeutic
doses of acetaminophen may be associated with fulminant hepatic
failure and death in alcoholic patients. Millions of patients
use acetaminophen; the prevalence of alcoholism in the United
States is 5% to 10%. OBJECTIVE: To determine if hepatic injury
was associated with maximal therapeutic dosing of acetaminophen
to chronic alcohol abuse patients immediately following cessation
of alcohol intake (the presumed time of maximal vulnerability).
METHODS: Patients entering an alcohol detoxification center were
enrolled in a randomized, double-blind, placebo-controlled trial.
Exclusion criteria were baseline values of aspartate or alanine
aminotransferase greater than 120 U/L, international normalized
ratio greater than 1.5, serum acetaminophen level greater than
20 mg/L, or a history of ingesting more than 4 g/d of acetaminophen.
Acetaminophen, 1000 mg, or placebo was administered orally 4 times
daily for 2 consecutive days and liver test results were monitored
for 2 more days. Acetaminophen was not administered until the
alcohol had been eliminated. RESULTS: There were 102 patients
in the acetaminophen-treated group and 99 patients in the placebo-treated
(control) group. Demographic data, alcohol history, and baseline
blood test results were similar in both groups. The mean (SD)
aspartate aminotransferase level on day 4 was 38.0 +/- 26.7 U/L
in the acetaminophen-treated group and 37.5 +/- 27.6 U/L in the
placebo-treated group. There were 4 patients in the acetaminophen-treated
group and 5 in the placebo-treated group who developed an increase
in their serum aspartate aminotransferase level to greater than
120 U/L; it did not exceed 200 U/L in any patient. The mean (SD)
international normalized ratio on day 4 was 0.96 +/- 0.09 in the
acetaminophen-treated group and 0.98 +/- 0.11 in the placebo-treated
group. CONCLUSION: Repeated administration of the maximum recommended
daily doses of acetaminophen to long-term alcoholic patients was
not associated with evidence of liver injury.
------
Baillieres Clin Gastroenterol 1993 Sep;7(3):581-608
Aetiology and pathogenesis of alcoholic liver
disease.
Lieber CS.
Mount Sinai School of Medicine (CUNY).
Until the 1960s, liver disease of the alcoholic patient was
attributed exclusively to dietary deficiencies. Since then, however,
our understanding of the impact of alcoholism on nutritional status
has undergone a progressive evolution. Alcohol, because of its
high energy content, was at first perceived to act exclusively
as 'empty calories' displacing other nutrients in the diet, and
causing primary malnutrition through decreased intake of essential
nutrients. With improvement in the overall nutrition of the population,
the role of primary malnutrition waned and secondary malnutrition
was emphasized as a result of a better understanding of maldigestion
and malabsorption caused by chronic alcohol consumption and various
diseases associated with chronic alcoholism. At the same time,
the concept of the direct toxicity of alcohol came to the forefront
as an explanation for the widespread cellular injury. Some of
the hepatotoxicity was found to result from the metabolic disturbances
associated with the oxidation of ethanol via the liver alcohol
dehydrogenase (ADH) pathway and the redox changes produced by
the generated NADH, which in turn affects the metabolism of lipids,
carbohydrates, proteins and purines. Exaggeration of the redox
change by the relative hypoxia which prevails physiologically
in the perivenular zone contributes to the exacerbation of the
ethanol-induced lesions in zone 3. In addition to ADH, ethanol
can be oxidized by liver microsomes: studies over the last twenty
years have culminated in the molecular elucidation of the ethanol-inducible
cytochrome P450IIE1 (CYP2E1) which contributes not only to ethanol
metabolism and tolerance, but also to the selective hepatic perivenular
toxicity of various xenobiotics. Their activation by CYP2E1 now
provides an understanding for the increased susceptibility of
the heavy drinker to the toxicity of industrial solvents, anaesthetic
agents, commonly prescribed drugs, 'over the counter' analgesics,
chemical carcinogens and even nutritional factors such as vitamin
A. Ethanol causes not only vitamin A depletion but it also enhances
its hepatotoxicity. Furthermore, induction of the microsomal pathway
contributes to increased acetaldehyde generation, with formation
of protein adducts, resulting in antibody production, enzyme inactivation
and decreased DNA repair; it is also associated with a striking
impairment of the capacity of the liver to utilize oxygen. Moreover,
acetaldehyde promotes glutathione depletion, free-radical mediated
toxicity and lipid peroxidation. In addition, acetaldehyde affects
hepatic collagen synthesis: both in vivo and in vitro (in cultured
myofibroblasts and lipocytes), ethanol and its metabolite acetaldehyde
were found to increase collagen accumulation and mRNA levels for
collagen. This new understanding of the pathogenesis of alcoholic
liver disease may eventually improve therapy with drugs and nutrients.
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