Antidiabetic properties of purified polysaccharide from Hedysarum polybotrys

Canadian Journal of Physiology and Pharmacology
Fangdi HuChunming Wang

Abstract

Hedysarum polybotrys polysaccharide (HPS) is the principal active fraction responsible for the antidiabetic properties of this species. The aim of this study was to determine the antidiabetic properties of 4 purified fractions of different molecular weight range HPSs (HPS1, HPS2, HPS3, HPS4). HPS3 was selected for examination of its hypoglycemic mechanism because of its significant hypoglycemic effect in alloxan-induced diabetic mice. The changes in blood glucose levels and oral glucose tolerance tests (OGTT) showed that hypoglycemia was more pronounced in HPS3-treated groups than in the diabetes mellitus model (DM) control group. The interleukin-6, tumor necrosis factor-alpha, leptin, and free fatty acid levels were significantly lower in the HPS3-treated groups and HPS3 + metformin (HPS3+MET) group than in the DM control group, while plasma insulin, hepatic glycogen, superoxide dismutase, and nitric oxide synthetase activity were significantly higher. Treatment with HPS3 or HPS3+MET also significantly lowered malonaldehyde levels compared with the DM control group, while it elevated the nitric oxide and total antioxidant capacity. HPS3 altered the plasma lipid levels by lowering cholesterol and triglyceride concentrations, wh...Continue Reading

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Citations

Jul 20, 2013·Chemistry Central Journal·Yinmao DongMinhui Li
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Oct 16, 2020·International Journal of Biological Macromolecules·Jie DengYuanming Sun

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