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Resveratrol, a natural antioxidant, has a protective effect on liver injury induced by inorganic arsenic exposure

, : Resveratrol, a natural antioxidant, has a protective effect on liver injury induced by inorganic arsenic exposure. Biomed Research International 2014: 617202-617202

Resveratrol (Rev) can ameliorate cytotoxic chemotherapy-induced toxicity and oxidative stress. Arsenic trioxide (As2O3) is a known cytotoxic environmental toxicant and a potent chemotherapeutic agent. However, the mechanisms by which resveratrol protects the liver against the cytotoxic effects of As2O3 are not known. Therefore, in the present study we investigated the mechanisms involved in the action of resveratrol using a cat model in which hepatotoxicity was induced by means of As2O3 treatment. We found that pretreatment with resveratrol, administered using a clinically comparable dose regimen, reversed changes in As2O3-induced morphological and liver parameters and resulted in a significant improvement in hepatic function. Resveratrol treatment also improved the activities of antioxidant enzymes and attenuated As2O3-induced increases in reactive oxygen species and malondialdehyde production. In addition, resveratrol attenuated the As2O3-induced reduction in the ratio of reduced glutathione to oxidized glutathione and the retention of arsenic in liver tissue. These findings provide a better understanding of the mechanisms whereby resveratrol modulates As2O3-induced changes in liver function and tissue morphology. They also provide a stronger rationale for the clinical utilization of resveratrol for the reduction of As2O3-induced hepatotoxicity.


PMID: 25147808

DOI: 10.1155/2014/617202

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