Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effect of Bulnesia sarmienti Ethanol Extract on Plasma Levels of Glucose and Lipid in Streptozotocin Induced Diabetic Rats

Bulnesia sarmienti 에탄올 추출물이 streptozotocin 유발 당뇨 흰쥐의 혈당 및 혈장 지질수준에 미치는 영향

  • 박창호 ((재)대구테크노파크 바이오산업지원센터) ;
  • 김대익 ((재)대구테크노파크 바이오산업지원센터) ;
  • 신은지 ((재)대구테크노파크 바이오산업지원센터) ;
  • 이기동 (대구경북한방산업진흥원) ;
  • 김정옥 (대구경북한방산업진흥원) ;
  • 김길수 (경북대학교 수의과대학) ;
  • 홍주헌 ((재)대구테크노파크 바이오산업지원센터)
  • Published : 2008.08.01
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Abstract

This study examined the effects of Bulnesia sarmienti ethanol extract on lipid metabolism in streptozotocin (STZ)-induced diabetic rats. Sprague Dawley rats were induced with diabetes mellitus by injecting STZ (45 mg/kg) into the tail vein, and were then divided into 5 groups: normal, STZ-control, and three experimental diabetic groups. The rats were fed a basal diet along with B. sarmienti ethanol extract for 8 weeks. According to the results, after 8 weeks of consuming the experimental diets, the body weights and food efficiency ratios of the B. sarmienti ethanol extract-fed groups were not different from those of the control group. However, the concentrations of plasma total-cholesterol, LDL-cholesterol, and triglycerides were significantly lower in the B. sarmienti ethanol extract groups as compared to those of the control group. Although a blood glucose control effect was not observed after the eight weeks of B. sarmienti ethanol extract treatment in this type-l diabetes model, it was discovered that the experimental diets were highly effective at lowering levels of serum lipids, including triglycerides, total-cholesterol, and LDL-cholesterol.

STZ 투여로 제 1형 당뇨를 유발시킨 다음 B. sarmienti 에탄올 추출물을 8주간 급여 후 혈당 및 혈중지질 변화를 알아보았다. 시험기간 동안 당뇨대조군 및 당뇨실험군의 체중증가는 정상군과 비교하여 유의적으로 낮게 나타났으며, B. sarmienti 에탄올 추출물 급여가 당뇨실험군에서의 체중변화에는 영향을 미치지 않는 것으로 조사되었다. 또한 수분섭취량, 사료섭취량, 혈당 모두 정상군과 비교하여 당뇨대조군 및 당뇨실험군에서 8주 동안 유의적으로 높게 지속되었다. 혈중 총 콜레스테롤, HDL-콜레스테롤, LDL-콜레스테롤 변화를 측정한 결과 정상군과 비교할 때 당뇨대조군에서는 상대적으로 증가하였으나, B. sarmienti 에탄올 추출물 투여로 유의적인 감소현상과 함께 정상군과 유사한 수준을 유지 하였다. 특히, B. sarmienti 에탄올 추출물 투여로 인한 혈중 총 콜레스테롤 변화는 BE0 29.1%, BE1 26.1%, BE2 23.6%로 평균 26.2%의 감소효과를 나타내었다. 또한 혈중 중성지방 변화는 BE0 55.6%, BE1 64.1%, BE2 68.4%로 평균 62.7%의 감소현상을 나타내었다. 혈중 콜레스테롤 및 중성지방은 B. sarmienti 에탄올 추출물 투여의 농도 의존적 감소현상은 관찰할 수 없었으나, 혈중지질 개선에 많은 영향을 미치는 것으로 조사되었다. 본 연구에는 제 1형 당뇨모델에서 8주 동안 B. sarmienti 에탄올 추출물을 투여하면서 혈당조절 효과는 관찰할 수 없었으나, 혈중지질 성분인 triglycerides, 총 콜레스테롤 및 LDL 콜레스테롤의 수준을 떨어뜨리는 효과가 있는 것으로 조사되었다. 결론적으로 B. sarmienti 에탄올 추출물 투여가 고혈당을 중심으로한 지질대사 이상과 함께 많은 합병증 유발이 문제시 되고 있는 당뇨병의 체내 지질대사 개선에 효과가 있을 것으로 사료된다.

Keywords

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