alexa Abstract | Protective effect of quercetin in the regression of ethanol-induced hepatotoxicity

Indian Journal of Pharmaceutical Sciences
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This study examined the protective effects of quercetin on chronic ethanol-induced liver injury. Rats were treated with ethanol at a dose of 4 g/100 g/day for 90 days. After ethanol intoxication, levels of serum amino transferases were significantly elevated. Decreased activity of superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase was also observed on ethanol administration. Increased amounts of lipid peroxidation products viz. hydroperoxides, conjugated dienes and malodialdehyde were observed on ethanol intoxication. Ethanol administration resulted in significant decrease in liver glutathione content. After 90 days, the control animals were divided into two groups, the control group and the control+quercetin group. Ethanol-treated group was divided into two groups, abstention group and quercetin-supplemented group. After 30 days, the animals were sacrificed and various biochemical parameters were analyzed. The changes in enzyme activities as well as levels of lipid peroxidation products were reversed to a certain extent by quercetin. Quercetin supplementation resulted in increase of glutathione content to a significant level compared to normal abstention group. Quercetin supplemented group showed a faster recovery than abstention group. This shows the protective effect of quercetin against chronic ethanol induced hepatotoxicity. Histopathological study is also in line with these results.

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Author(s): A Vidhya M Indira


Quercetin, ethanol, hepatotoxicity, serum amino transferases, lipid peroxidation

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