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Antihyperglycemic and antioxidant activity of water extract from Anoectochilus roxburghii in experimental diabetes
Shi-Chao Cui1, Jie Yu, Xiao-Hui Zhang
1Department of Biology, Shantou University, Shantou 515063, Guangdong, PR China.
Abstract:
The hypoglycemic and antioxidant effects of the water extract from Anoectochilus roxburghii in alloxan-induced diabetic mice were examined. Compared with untreated diabetic mice, the daily oral administration of the water extract from A. roxburghii at 0.5 or 2 g/kg for 14 days caused a significant decrease (p<.05) in blood glucose levels with similar effect but no evidence of dose-related effect. Simultaneously, the alteration in lipid metabolism was partially attenuated as evidenced by decreased serum total cholesterol and triglyceride levels and by increased high-density lipoprotein cholesterol concentration in diabetic mice (p<.05) but no dose-related effect was observed. In addition, the water extract from A. roxburghii caused a significant increase (p<.05) in the activities of enzymic antioxidants and the levels of vitamin E in liver and kidney of diabetic mice. Our results suggest that water extract from A. roxburghii possesses hypoglycemic and antioxidant properties after oral administration to mice showing alloxan-induced diabetes.
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