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ROLES OF CARICA PAPAYA ETHANOL LEAF EXTRACT ON SOME OXIDATIVE STRESS MARKERS OF ASPIRIN-ULCERATED RATS
Christian E. Odo*
ABSTRACT Researches into medicinal plants with potent anti-oxidant activity will continue to receive the attention of researchers due to the role of oxidative stress in many disease conditions and hence, this study was aimed at investigating the roles of C. papaya ethanol leaf extract on some oxidative stress markers of aspirin-ulcerated rats. The effects of the ethanol extract of the leaves of C. papaya on the activity of superoxide dismutase (SOD), concentrations of reduced glutathione (GSH) and malondialdehyde (MDA) were determined using standard methods. At the administered doses (100, 200 and 400 mg/kg b.w), the extract caused significant (p < 0.05) and dose-related increases in the activities and amounts of SOD and GSH respectively in the rats of the test groups compared to those of the rats in the ulcer-untreated group. The extract treatment also led to significant (p < 0.05) reductions in the concentrations of MDA in the rats of the test groups compared to that of the rats in the ulcer-untreated group. The 400 mg/kg b.w of the extract exerted the greatest effects which were analogous to those of the standard anti-ulcer drug, ranitidine at the dose of 150 mg/kg b.w. The ethanol extract of the leaves of C. papaya remarkably ameliorated the gastric ulcer-associated indices in the ulcerated rats and these findings thus support the local application of the leaves of the plant in the treatment of gastric ulcer. Keywords: Medicinal plants, Anti-oxidant, Oxidative Stress and Gastric ulcer. [Download Article] [Download Certifiate] |