Abstract
Potentilla fulgens (Rosaceae) root traditionally used as a folk remedy by local health practitioners of Khasi Hills, Meghalaya was investigated for its effects on lipid peroxidation and antioxidant status in alloxan-induced diabetic mice. Significant increase in levels of thiobarbituric acid reactive substances (TBARS) and decrease in activities of glutathione peroxidase (GPx), superoxide dismutase (SOD) and catalase (CAT) were observed under diabetic condition. Intraperitoneal administration of methanol extract of P. fulgens roots at a dose of 250 mg/kg body weight to male swiss albino diabetic mice for 14 days caused significant reduction in the elevated TBARS level, while increasing the activities of the antioxidant enzymes in diabetic mice. Maximum reduction in TBARS level was observed in liver tissue (75%, p<0.001). Kidney exhibited the highest elevation in the activity for catalase (68%, p<0.001) and superoxide dismutase (29%, p<0.001) while maximum increase in glutathione peroxidase activity was seen in brain (50%, p<0.001). The effects of P. fulgens was compared against known antioxidant, vitamin C. Results indicate that Potentilla fulgens methanolic root extract can reduce free radical mediated oxidative stress in experimental diabetes mellitus.
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