Protective effect of resveratrol on markers of oxidative stress in human erythrocytes subjected to in vitro oxidative insult
2010
Pandey, Kanti Bhooshan | Rizvi, Syed Ibrahim
Resveratrol is a natural polyphenolic compound found largely in the skin of red grapes. Growing evidence suggests that resveratrol may play an important role in the prevention of many human diseases. Many of the biological actions of this polyphenol have been attributed to its antioxidant properties. The present study was undertaken to evaluate the effect of resveratrol on intracellular reduced glutathione (GSH) and membrane sulphydryl groups in erythrocytes subjected to oxidative stress in vitro by incubating with t-BHP (10 μm). The study was aimed to test the efficacy of the antioxidant effect of resveratrol on human erythrocytes. Subjecting erythrocytes to oxidative stress (in vitro) by incubating them with t-BHP (10 μm) caused a significant decrease in the intracellular GSH level and membrane -SH content compared with basal values. Incubation of erythrocytes/membranes with resveratrol (1-100 μm final conc) resulted in significant protection against the t-BHP-induced oxidative stress as evidenced by the increase in GSH level and membrane -SH content. It was observed that the effect of resveratrol is dose/concentration and time-dependent. Since resveratrol is naturally present in many fruits and vegetables, a diet rich in resveratrol may provide protection against degenerative diseases.
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