The Hypoglycemic Effect of Saururus chinensis Baill in Animal Models of Diabetes Mellitus

  • Joo, Hee-Jeong (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Kang, Ming-Jung (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Seo, Tae-Jin (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Kim, Hyun-A (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Yoo, Sung-Ja (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Lee, Soo-Kyung (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University) ;
  • Lim, Hwa-Jae (Department of Food and Nutrition, Dong-eui University) ;
  • Byun, Boo-Hyeong (Department of Oriental Medicine, Daegu Haany University) ;
  • Kim, Jung-In (Biohealth Product Research Center, School of Food and Life Science, Institute for Food Sciences, Inje University)
  • 발행 : 2006.06.30

초록

The purpose of this study was to investigate the hypoglycemic effect of Saururus chinensis Baill in vitro and in vivo. Methanol extract of S. chinensis Baill inhibited yeast ${\alpha}$-glucosidase activity by 49.8%, which was twice as strong as that of acarbose at a concentration of 0.5 mg/mL in vitro. The effect of S. chinensis Baill methanol extract on the postprandial increase in blood glucose levels was studied in streptozotocin-induced diabetic rats using a carbohydrate load test. Oral administration of S. chinensis Baill extract (500 mg/kg) significantly decreased incremental blood glucose levels at 60 and 90 min (p<0.05) after oral ingestion of starch (1 g/kg). The area under the glucose response curve of the S. chinensis Baill group was significantly decreased compared to that of the control group (p<0.05). The effect of prolonged feeding of S. chinensis Baill was studied in an animal model of type 2 diabetes. Three-week-old db/db mice were fed an AIN-93G diet or a diet containing 0.5% S. chinensis Baill extract for 7 weeks after 1 week of adaptation. Plasma glucose, insulin, and blood glycated hemoglobin levels of the mice fed S. chinensis Baill extract were significantly lower than those of the control group (p<0.05). Therefore, we conclude that S. chinensis Baill is effective in controlling hyperglycemia in animal models of diabetes mellitus.

키워드

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