Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effects of Butanol Fraction of Alisma canaliculatum with Vitamin E on Plasma Levels of Glucose and Lipid in Streptozotocin-Induced Diabetic Rats

택사 butanol 분획물과 vitamin E의 투여가 streptozotocin 유발 당뇨 흰쥐의 혈당 및 혈장 지질수준에 미치는 영향

  • Lim, Sook-Ja (Department of Foods and Nutrition, College of Natural Sciences, Duksung Women's University) ;
  • Park, Ji-Eun (Department of Foods and Nutrition, College of Natural Sciences, Duksung Women's University)
  • 임숙자 (덕성여자대학교 자연과학대학 식품영양학과) ;
  • 박지은 (덕성여자대학교 자연과학대학 식품영양학과)
  • Published : 2003.08.01
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Abstract

The effects of butanol (BuOH) fraction of Alisma canaliculatum (Ac) with vitamin E in streptozotocin (STZ)-induced diabetic rats were determined. Sprague-Dawley rats were divided into 5 groups: normal, STZ-control, and 3 diabetic-experimental groups. Diabetes mellitus was induced by injection of STZ (45 mg/kg) into the tail vein. The BuOH fraction of Ac and vitamin E were administrated orally in experimental rats for 21 days: Ac group (400 mg/kg), Ac-VE group (Ac 400 mg/kg & vitamin E 10 mg/kg), and VE group (vitamin E 10 mg/kg). The body weight losses were seen in all groups except normal, and the decrements in experimental groups were less than that in diabetic-control group. The plasma glucose levels were significantly lower in Ac group compared to STZ-control group on 21 day (p<0.05). The plasma level of insulin was slightly higher in AC-VE group than other diabetic groups. The plasma cholesterol levels of diabetic-experimental groups were significantly lower than those of STZ-control group on 14 day (p<0.05). ALT and AST activities of diabetic-experimental groups were significantly lower than that of STZ-control group (p<0.05). The results suggested that the BuOH fraction of Ac might possess hypoglycemic properties in STZ-induced diabetic rats and no synergistic effect of vitamin E was seen during the experimental period.

본 연구는 220 g 내외의 흰쥐를 이용하여 정상군, 당뇨대조군, 택사투여군(Ac), 택사와 비타민 E 병용투여군(Ac-VE), 비타민 E투여군(VE)으로 구분하여 실험하였다. 21일간 택사의 BuOH 분획물(400 mg/kg B.W.)과 비타민 E(10 mg/kg B.W.)를 단독 혹은 병용투여한 후 혈당과 혈중 지질함량을 분석하였다. 정상군을 제외한 모든 실험군에서 체중이 감소하였으며, 당뇨대조군에 비해 당뇨 실험군의 체중은 높은 경향을 보였다. 혈당 수준은 택사 투여시 실험 21일째에 당뇨대조군에 비해 유의적으로 감소되었다(p<0.05). 인슐린수준은 당뇨유발군간의 유의적인 차이는 없었으나, Ac-VE투여군의 수치가 다른 군에 비해 높았다. 혈중 콜레스테롤 수준은 실험 14일째에는 당뇨대조군에 비해 모든 당뇨실험군이 유의적으로 낮았으며(p<0.05), 실험 21일째에는 Ac투여군에서 유의적으로 낮았다(p<0.05). HDL-cholesterol함량, 중성지방, 동맥경화지수 및 혈장 유리지방산의 수준은 유의적인 차이가 없었다. ALT 및 AST 활성도는 당뇨대조군에 비해 모든 당뇨실험군이 유의적으로 낮았다(p<0.05). 이 결과 택사 및 비타민 E의 투여가 실험 당뇨 쥐의 혈당 감소와 체중감소 완화, 간의 손상 감소에 효과가 있음을 보여주고 있다. 그러나 본 실험기간동안 택사와 비타민 E 병용투여시 상승효과는 보이지 않았다.

Keywords

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