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Non-invasive monitoring of oxidant stress in alcoholic liver disease.

Abstract：

OBJECTIVE:In alcoholic liver disease (ALD), progression from initial steatosis, through hepatitis to cirrhosis is well described, resulting in 20,000 deaths in the UK annually. However, pathological mechanisms are not well understood and drug trials have led to conflicting results. It has been established that alcohol consumption increases hepatic free radical production and oxidant stress has been implicated in the disease process. MATERIAL AND METHODS:Markers of lipid peroxidation, antioxidant status, hepatic fibrogenesis, inflammation and liver function were measured in blood and urine from 24 patients with established alcoholic cirrhosis and in 49 age- and sex-matched controls. RESULTS:In the ALD group, lipid peroxidation markers 8-isoprostane and malondialdehyde were significantly increased (p<0.001), as was the ratio of oxidized to reduced glutathione (p=0.027). The antioxidants selenium, glutathione (whole blood and plasma) and vitamins A, C and E were all significantly decreased (p<0.001); median plasma glutathione levels were only 19% of control levels. Type III procollagen peptide (PIIINP), a serum marker of hepatic fibrogenesis, and C-reactive protein (CRP) were both increased (p<0.001). Urinary 8-isoprostane correlated positively with PIIINP, CRP and markers of cholestasis (alkaline phosphatase and bilirubin) and negatively with glutathione (whole blood), vitamins A and E and albumin. CONCLUSIONS:Oxidant stress, as reflected in blood and urine by a wide range of pro- and antioxidant markers, is a significant feature of alcoholic cirrhosis, providing a mechanism by which alcohol intake may be linked to hepatic inflammation and fibrosis. Non-invasive markers could prove valuable in monitoring response to treatment during clinical trials.

journal_name

Scand J Gastroenterol

journal_title

Scandinavian journal of gastroenterology

authors

Pemberton PW,Smith A,Warnes TW

doi

10.1080/00365520510023495

subject

Has Abstract

pub_date

2005-09-01 00:00:00

pages

1102-8

issue

9

eissn

0036-5521

issn

1502-7708

pii

G74530758211K70T

journal_volume

40

pub_type

杂志文章

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