Hypoglycemic Effect of Polygonatum Odoratum var. Pluriflorum Ohwi Extract in Streptozotocin-Induced Diabetic Rats

둥굴레(Polygonatum Odoratum var. Pluriflorum Ohwi)추출물의 당뇨 유발 흰쥐에 대한 혈당강화 효과

  • 임숙자 (덕성여자대학교 자연과학대학 식품영양학과)
  • Published : 1995.09.01

Abstract

The hypoglycemic effect of Polygonatum odoratum var. Pluriflorum Ohwi was investigated after extracted with methanol. The methanol extract was fractionated into 4 layers ; hexane, chloroform, butanol and aqueous. Fifty male Sprague-Dawley rats(200-300g) were induced diabetes mellitus by the streptozotocin injection(45mg/kg B.W) into the tail vein and were divided into 5 groups ; diabetic control and 4 experimental groups. All groups of the rats were fed on a AIN-76 diet, and the 4 experimental groups were orally administered with each fraction(500mg/kg B.W) for 12 days and the diabetic control group was orally administered CMC. The body weight gain was monitered and the blood levels of glucose and cholesterol were measured. Levels of protein, triglyceride, and free fatty acid in plasma were analysed. The contents of protein, triglyceride and glycogen in liver and of protein and glycogen in muscle were also determined. The body weight gain was shown significantly higher in the H2O fraction group than that in the diabetic control group and the heart weight was greater in the CHCl3 group. The extents of blood glucose decrement were greater in the BuOH and H2O groups than that in the control group. The urinary glucose excretion was shown relatively small amount in the BuOH and H2O groups. The plasma cholesterol and protein levels were not influenced by these four fractions in diabetic rats. The liver glycogen level was significantly higher in the BuOH group. The results suggest that the orally administered BuOH and H2O fraction of Polygonatum odoratum var. Pluriflorum Ohwi exhibited hypoglycemic effect in streptozotocin induced diabetic rats.

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