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Abstract Title:

Geraniol attenuates 2-acetylaminofluorene induced oxidative stress, inflammation and apoptosis in the liver of wistar rats.

Abstract Source:

Toxicol Mech Methods. 2015 Sep ;25(7):559-73. Epub 2015 Sep 12. PMID: 26364502

Abstract Author(s):

Syed Kazim Hasan, Sarwat Sultana

Article Affiliation:

Syed Kazim Hasan

Abstract:

2-Acetylaminofluorene (2-AAF), is a well-known liver toxicant, generally used to induce tumors in laboratory animals. Geraniol (GE), a monoterpene found in essential oils of herbs and fruits, has been known to possess preventive efficacy against chemically induced toxicities. The present study was designed to analyze the protective effect of GE against 2-AAF induced oxidative stress, inflammation, hyperproliferation and apoptotic tissue damage in the liver of female Wistar rats. 2-AAF (0.02% w/w in diet) was administered and subjected to partial hepatectomy, as a mitogenic stimulus for the induction of hyperproliferation of liver tissue. GE was pre-treated orally at two different doses (100 and 200 mg/kg b.wt.) dissolved in corn oil. GE pre-treatment significantly ameliorated 2-AAF induced oxidative damage by diminishing tissue lipid peroxidation accompanied by the increase in enzymatic activities of catalase, glutathione peroxidase, glutathione reductase, superoxide dismutase and reduced glutathione content. The level of serum toxicity markers (AST, ALT, LDH) was found to be decreased. Pre-treatment with GE downregulated the expression of caspase-3,9, COX-2, NFkB, PCNA, iNOS, VEGF and significantly decreased disintegration of DNA. Histological findings further revealed that GE significantly restores the architecture of liver tissue. In the light of the above observations it may be concluded that GE may be used as preventive agent against 2-AAF induced oxidative stress, inflammation, hyperproliferation and apoptotic damage.

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Sayer Ji
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