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J Ethnopharmacol. 2006 Apr 21;105(1-2):201-9. Epub 2005 Dec 13.

Protective effect of Phyllanthus fraternus against allyl alcohol-induced oxidative stress in liver mitochondria.

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  • 1Department of Biochemistry, School of Life Sciences, University of Hyderabad, Gachi Bowli, Hyderabad 500046, India.

Abstract

The effect of administration of allyl alcohol on the oxidative stress and the protective effect due to administration of an aqueous extract of Phyllanthus fraternus against allyl alcohol-induced damage in liver mitochondria were studied. When rats were treated with allyl alcohol, the rate of mitochondrial respiration was decreased significantly with both NAD(+)- and FAD-linked substrates. The respiratory control ratio, an index of membrane integrity and the P/O ratio, a measure of phosphorylation efficiency also decreased significantly. There was a significant increase in the lipid peroxide level and the protein carbonyl content. A significant decrease was observed in the total sulphydryl groups and a significant increase in the generation of superoxide radicals. Administration of rats with an aqueous extract of Phyllanthus fraternus (100 mg/kg) prior to allyl alcohol administration showed protection of 72, 40 and 80% using glutamate+malate (NADH oxidation) and 77, 54 and 20% using succinate as substrate on state 3, RCR and P/O ratio, respectively. The protection on lipid peroxide level was 88 and 91% in homogenate and mitochondria, respectively. In case of protein carbonyls, total sulphydryl groups and on the generation of superoxide radicals the protection was 99, 59 and 53%, respectively.

PMID:
16359838
DOI:
10.1016/j.jep.2005.10.019
[PubMed - indexed for MEDLINE]
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