Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of Curcuma longa L. on the Obesity and Insulin Resistance in Sprague-Dawley Rats and db/db Mice

SD계 랫트와 db/db 마우스에서 Curcuma longa L.가 비만과 인슐린저항성에 미치는 영향

  • You, Mi-Kyoung (Department of Food & Nutrition, Mokpo National University) ;
  • Kim, Min-Sook (Department of Food & Nutrition, Mokpo National University) ;
  • Rhyu, Dong-Young (Deparrtment of Oriental Medicine Resources, Mokpo National University) ;
  • Kim, Hyeon-A (Department of Food & Nutrition, Mokpo National University)
  • Received : 2012.10.25
  • Accepted : 2013.01.04
  • Published : 2013.02.28
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Abstract

In this study, the effect of Curcuma longa L. on obesity and insulin resistance was investigated in animals fed a moderate high fat diet. The animals used in this study were normal weight Spargue-Dawley (SD) rats and type 2 diabetic obese db/db mice. Accumulation of abdominal adipose tissue and weight gain were inhibited in the animals fed the C. longa extract. C. longa decreased fasting insulin and HOMA-IR in the SD rats, and effectively decreased blood glucose and hemoglobin A1c in db/db mice. C. longa decreased serum free fatty acid (FFA) level in the SD rats. FFA in db/db mice fed C. longa tended to decrease. C. longa significantly decreased serum triglyceride level. Our results collectively represent that C. longa prevented fat accumulation and insulin resistance in both normal weight SD rats and type 2 diabetic obese db/db mice fed a moderate high fat diet.

본 실험은 Curcuma longa L.의 비만, 인슐린 저항성 효과에 대해 알아보기 위하여 C. longa 를 50% 에탄올로 추출물을 제조한 다음 실험동물을 통하여 알아보았다. 실험동물로는 정상동물인 SD계 랫트와 2형 당뇨 모델인 db/db 마우스를 사용하였고 식이로는 고지방식이(15%fat diet)를 사용하였고 C. longa는 식이에 넣어 제공하였다. SD rat 에서 체중, 총지방량은 1.5% 울금식이군이 대조군보다 유의적으로 감소하였다. 혈청에서 인슐린, HOMA-IR, TG는 1.5% 울금식이군이 대조군보다 유의적으로 감소하는 것을 관찰할 수 있었다. db/db 마우스에서 체중은 1.5% 울금식이군이 대조군보다 감소하는 경향을 보였으나 유의적이지는 않았고 총지방량은 1.5% 울금식이군이 대조군보다 유의적으로 감소하는 것을 관찰 할 수 있었다. 본 실험에서 공복 시 혈당은 2주마다 측정하였는데 1.5% 울금식이군이 대조군보다 유의적으로 감소하였고 hemoglobin A1c도 유의적으로 감소하는 것을 관찰 할 수 있었다. 공복 시 혈당과 hemoglobin의 유의적인 감소로 인하여 혈청에서 측정한 insulin, HOMA-IR이 감소하는 경향을 보인 것으로 사료된다. 이상의 결과로 보아 C. longa 추출물은 체중조절 및 혈당조절에 도움이 되는 천연약물로서의 기능성이 입증되었다고 사료된다.

Keywords

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