Article Publish Status: FREE
Abstract Title:

Antioxidants vitamin E and C attenuate hepatic fibrosis in biliary-obstructed rats.

Abstract Source:

World J Gastroenterol. 2006 Nov 14 ;12(42):6835-41. PMID: 17106933

Abstract Author(s):

Ali-Riza Soylu, Nurettin Aydogdu, Umit-Nusret Basaran, Semsi Altaner, Orhan Tarcin, Nursal Gedik, Hasan Umit, Ahmet Tezel, Gulbin Dokmeci, Huseyin Baloglu, Mevlut Ture, Kemal Kutlu, Kadir Kaymak

Article Affiliation:

Ali-Riza Soylu


AIM: To investigate whether antioxidants vitamin E and C can retard development of hepatic fibrosis in the biliary-obstructed rats.

METHODS: Fifty Wistar albino rats were randomly assigned to 5 groups (10 rats in each). Bile duct was ligated in 40 rats and they were treated as follows: group vitC, vitamin C 10 mg/kg sc daily; group vitE, vitamin E 15 mg/kg sc daily; group vitEC, both of the vitamins; bile duct-ligated (BDL, control) group, physiological saline sc. The fifth group was assigned to sham operation. At the end of fourth week, the rats were decapitated, and hepatic tissue biochemical collagen content and collagen surface area were measured. Hepatic tissue specimens were histopathologically evaluated according to Scheuer system. Serum hyaluronate levels were measured by ELISA method.

RESULTS: Despite being higher than sham group, hepatic collagen level was significantly decreased in each of the vitC, vitE and vitEC groups (32.7 +/- 1.2, 33.8 +/- 2.9, 36.7 +/- 0.5 mug collagen/mg protein, respectively) compared to BDL (48.3 +/- 0.6 mg collagen/g protein) (P<0.001 for each vitamin group). Each isolated vitamin C, isolated vitamin E and combined vitamin E/C supplementation prevented the increase in hepatic collagen surface density (7.0% +/- 1.1%, 6.2% +/- 1.7%, 12.3% +/- 2.0%, respectively) compared to BDL (17.4% +/- 5.6%) (P<0.05 for each). The same beneficial effect of vitamin C, vitamin E and combined vitamin E/C treatment was also observed on the decrease of serum hyaluronate levels compared to BDL group (P<0.001). The relative liver and spleen weights, serum transaminases, cholestatic enzymes, bilirubins and histopathological inflammation scores were not different between the antioxidant treatment groups and the control. However, fibrosis staging scores were obviously reduced only in the vitamin E/C combination group (vit EC: 2.4 +/- 0.8 vs BDL: 3.1 +/- 0.7; P<0.05).

CONCLUSION: Each antioxidant vitamin E, vitamin C and their combination retard hepatic fibrosis in biliary-obstructed rats. Oxidative stress may play a role in the pathogenesis of hepatic fibrosis in secondary biliary cirrhosis.

Print Options

Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2022 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.