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Protective effect of Carica papaya L leaf extract against alcohol induced acute gastric damage and blood oxidative stress in rats.

M Indran, A. A. Mahmood, Umah Rani Kuppusamy

Abstract

The effects of Carica papaya leaf (CPL) aqueous extract on alcohol induced acute gastric damage and the immediate blood oxidative stress level were studied in rats. The results showed that gastric ulcer index was significantly reduced in rats pretreated with CPL extract as compared with alcohol treated controls. The in vitro studies using 2,2-Diphenyl-1-Picryl-Hydrazyl (DPPH) assay showed strong antioxidant nature of CPL extract. Biochemical analysis indicated that the acute alcohol induced damage is reflected in the alterations of blood oxidative indices and CPL extract offered some protection with reduction in plasma lipid peroxidation level and increased erythrocyte glutathione peroxidase activity. Carica papaya leaf may potentially serve as a good therapeutic agent for protection against gastric ulcer and oxidative stress.

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Key concepts: Carica, Medicine, Oxidative stress, Lipid peroxidation, Antioxidant, Traditional medicine, Alcohol, Glutathione