Lipoperoxidation Induced by Hydrogen Peroxide in Human Erythrocyte Membranes. 1. Protective Effect of Ginkgo Biloba Extract (EGb 761)

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Abstract
The antioxidant potential of Ginkgo biloba extract (EGb 761) on healthy human erythrocyte membranes was investigated. Lipoperoxidation was induced in erythrocyte suspensions using hydrogen peroxide, in the presence of EGb 761 at 37 °C; malondialdehyde production was determined as the indicator of lipoperoxidation during the incubation period. The results for EGb 761 at concentrations of 0, 25, 50, 125, 250 and 500 μg/ml suggest that the antioxidant potential of EGb 761 in erythrocyte membranes increases with dose. Similarly, using different incubation periods (0, 15, 30, 45 or 60 min) indicated that the antioxidant effect of EGb 761 increased by the incubation time.