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Antidiabetic and Antioxidative Effects of Cibotium barometz in Streptozotocin-Induced Diabetic Rats

구척 에탄올 추출물이 Streptozotocin 유발 당뇨 흰쥐에 대한 항당뇨 및 항산화 작용에 미치는 효과

  • Kim, Ok-Kyung (Department of Food Science and Nutrition, Dae Jin University)
  • 김옥경 (대진대학교 자연과학대학 식품영양학과)
  • Received : 2015.08.03
  • Accepted : 2015.09.17
  • Published : 2015.09.30

Abstract

This study was done to investigate the antidiabetic and antioxidant effects of Cibotium barometz in Streptozotocin (STZ)-induced diabetic rats. Diabetes was induced by intravenous injection of STZ at a dose 45mg/kg.b.w. dissolved in citrate buffer(pH4.5). The ethanol extract of Cibotium barometz was orally administrated once a day for 7 days. The contents of serum glucose, triglyceride(TG) and total cholesterol were significantly decreased(p<0.05) in Cibotium barometz treated group compared to the those of STZ-control group, The content of glutathione(GSH) and activity of gluthathione-s-transferase(GST) were significantly increased (P<0.05) in Cibotium barometz treated group compared to the those of STZ-control group. and activityes of catalase(CAT) and glutathione peroxidae(GSH-Px) were signiicantly decreased (P<0.05) in Cibotium barometz treated group compared to the those of STZ-control group. Also the content of hepatic glycogen and activities of glucose-phosphate dehydrogenase(G-6-PDH)and glucokinase(GK) were significamtly increased(p<0.05), but activity of glucose-6-phosphatase (G-6-Pase) was significamtly decreased (p<0.05) in Cibotium barometz treated group compared to the those of STZ-control group. These results indicated that ethanol extract of Cibotium barometz would have antidiabetic and antioxidant effects in STZ-induced diabetic rats.

Streptozotocin(STZ)으로 유도된 당뇨 흰쥐에게 구척 에탄올 추출물을 1일 1회 7일간 1,000 mg/kg.b.w의 용량으로 투여 후 glucose함량과 당대사에 관여하는 효소인 glucose-6-phosphatase(G-6-Pase), glucose-6-phosphate dehydrogenase(G-6-PDH)과 glucokinase(GK)활성과 glycogen 함량과 triglyceride(T.G), total cholesterol 등의 지질대사에 관여하는 물질들과 항산화작용에 관여하는 glutathione-s-transferase(GST),Catalase(CAT), glutathione peroxidase(GSH-Px)활성과 glutathione(GSH)함량을 측정한 결과 구척 에탄올 추출물 투여군이 glucose, T.G, total cholesterol 등의 함량과 G-6-Pase 활성의 유의적인 감소(p<0.05)를 나타내었으며 glycogen 함량과 G-6-PDH, GK의 활성이 유의적인 증가(p<0.05)를 나타내었다. 이와 같이 구척 에탄올 추출물이 항당뇨, 항산화작용의 개선효과를 갖는 유효성분을 함유하고 있음을 알 수 있었다.

Keywords

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