Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effects of $H_2O$ Fraction of Alisma canaliculatum with Chromium on Blood Glucose Levels and Lipid Metabolism in Streptozotocin-Induced Diabetic Rats

택사 $H_2O$ 분획물과 Chromium의 투여가 Streptozotocin 유발 당뇨 흰쥐의 혈당 및 혈중 지질함량에 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 : 2002.08.01
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Abstract

Hypoglycemic effects of $H_2O$ fraction of Alisma canaliculatum (Ac) with chromium (Cr) in streptozotocin (STZ)-induced diabetic rats were investigated. Sprague-Dawley rats were divided into five groups: normal, diabetic-control, and three diabetic experimental groups. Diabetes mellitus was induced by injection of STZ (45 mg/kg) into tail vein, and $H_2O$ fraction of Ac and Cr were administrated orally to experimental rats for 14 days: Ac group (1,000 mg/kg), Cr-Ac group (Ac 1,000 mg/kg & Cr 100 mg/kg), and Cr group (100 mg/kg). Body weight losses were observed in all groups except the normal group, while the losses in experimental groups were significantly less than in diabetic-control group. The plasma glucose levels were significantly lower in Cr, Ac-Cr, and Ac groups compared to STZ-control group. Plasma cholesterol and TG levels of Ac-Cr group were significantly lower than those of diabetic-control group. Plasma HDL-cholesterol levels of three experimental groups were not significant compared to diabetic-control group, while the level of Cr group decreased more than diabetic-control group. The results suggest that there was no synergistic effect in the treatment of $H_2O$ fraction of Ac in combination with Cr, an indication that $H_2O$ fraction of Ac with Cr might possess some hypoglycemic and hypotriglyceridemic properties in STZ-induced diabetic rats.

본 연구는 정상군과 streptozotocin으로 당뇨병을 유발시킨 $230{\sim}250\;g$의 흰쥐를 이용하여 실험하였다. 당뇨실험군은 당뇨대조군과 택사투여군(Ac), 택사와 Cr병용투여군(Ac-Cr), Cr투여군(Cr)으로 구분하여 실험하였다. 14일간 택사의 $H_2O$분획물(1000 mg/kg b.w.)과 Cr(100 mg/kg b.w.)을 경구투여한 후 혈당과 혈중 지질함량을 분석하였다. 정상군을 제외한 모든 실험군에서 체중이 감소하였으며, 당뇨대조군에 비해 당뇨실험군의 체중은 높은 수준으로 나타났으며, 특히 Cr투여군의 체중은 유의적으로 높았다(p<0.05). 택사와 Cr의 투여시 실험 14일째에 당뇨대조군에 비해 당뇨 실험군에서 혈당이 유의적으로 감소되었다. 혈중 콜레스테롤 수준도 실험 14일째에 다른 실험군과 대조군에 비해 Cr과 택사병용투여군에서 유의적으로 낮았으며, 혈장 중성지방의 함량도 당뇨대조군에 비해 모든 실험군에서 낮은 수준을 보였으며 특히 택사-Cr병용투여군에서는 유의적으로 낮은 수준을 보였다(p<0.05). Cr과 택사의 병용 투여의 경우 혈당과 혈장 지질함량의 감소효과가 나타났으나, 두 물질의 병용 투여에 따른 상승효과는 뚜렷하지 않았다. HDL-cholesterol함량은 Cr 투여시 당뇨대조군에 비해 낮은 수준을 나타냈으나, 유의적인 차이는 보이지 않았다. 이 결과는 택사와 Cr의 투여가 실험 당뇨쥐의 혈당과 혈중 지질 함량 감소에 효과가 있음을 보여주고 있다.

Keywords

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