생명과학회지 (Journal of Life Science)

  • 제22권8호
  • /
  • Pages.1064-1070
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  • 2012
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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울금(Curcuma longa L.)이 고지방·고콜레스테롤 식이 흰쥐에서의 담즙산 및 UDP-glucuronyl transferase 활성에 미치는 영향

Effect of Tumeric (Curcuma longa) on Bile Acid and UDP-glucuronyl Transferase Activity in Rats Fed a High-fat and -cholesterol Diet

  • 김민선 (한국국제대학교 식품과학과) ;
  • 전성식 (한국국제대학교 식품과학과) ;
  • 김상헌 (부산대학교 의학전문대학원 미생물학 및 면역학 교실) ;
  • 최정화 (한국국제대학교 식품영양학과)
  • Kim, Min-Sun (Department of Food Science, International University of Korea) ;
  • Chun, Sung-Sik (Department of Food Science, International University of Korea) ;
  • Kim, Sang-Hun (Department of Microbiology and Immunology, Pusan National University School of Medicine) ;
  • Choi, Jung-Hwa (Department of Food and Nutrition, International University of Korea)
  • 투고 : 2012.06.08
  • 심사 : 2012.07.17
  • 발행 : 2012.08.30
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초록

본 연구는 울금 분말을 고지방 고콜레스테롤 쥐에 농도별로 2.5% (TPA group), 5% (TPB gorup)의 수준으로 공급하였을 시 담즙산 및 UDP-glucuronyl transferase (UDP-GT) 활성에 미치는 영향을 관찰하였다. 체중증가량은 정상군에 비해 고지방 고콜레스테롤 군에서 유의적으로 증가하였으나, 울금 분말을 공급한 군에서는 체중의 감소가 나타났다. 식이섭취량 및 식히효율에서는 정상군에 비해 고지방 고콜레스테롤 군에서 증가하였다. 총콜레스테롤 함량과 중성지질 함량은 정상군에 비해 고지방 고콜레스테롤 군에서 유의적으로 증가하였다. 혈중의 HDL 콜레스테롤은 정상군에 비해 고지방 고콜레스테롤 군에서 유의적으로 감소하였고, 울금 분말 공급군에서는 고지방 고콜레스테롤 군에 비해 유의적으로 증가하는 경향을 보였다. 반면, LDL 콜레스테롤 및 동맥경화지수(AI)에서는 고지방 고콜레스테롤에서 정상군에 비해 유의적으로 증가하였다. 간조직의 총 지질함량을 관찰한 결과 중성지질의 함량 및 총 콜레스테롤 함량은 정상군에 비해 고지방 고콜레스테롤 군에서 유의적으로 증가하였으며, 고지방 고콜레스테롤 군에 비해 울금 분말 공급군은 유의적으로 감소하는 경향을 나타내었다. 분변의 총 콜레스테롤 함량 및 중성지방 함량은 울금 분말을 공급한 군에 비해 고지방 고콜레스테롤군에 비해 다소 증가되었다. 혈청 중의 담즙산 농도는 고지방 고콜레스테롤 군에 비해 울금 분말을 공급한 TPA, TPB 군에서 유의적으로 증가 하였으며, UDP-GT활성을 관찰한 결과는 울금 분말 5%를 공급한 TPB 군은 고지방 고콜레스테롤 군에 비해 유의적으로 증가되었을 뿐만 아니라 가장 높은 활성을 나타내었다. 따라서 본 연구의 결과로 미루어 울금은 담즙산 및 UDP-GT의 활성을 높여줌으로써 지질대사의 개선작용을 지니고 있음을 확인할 수 있었다.

The current study examined the effect of turmeric powder on bile acid and UDP-glucuronyl transferase activity in rats fed a high-fat and -cholesterol diet. Sprague-Dawley male rats weighing $120{\pm}10$ g were randomly assigned to a normal diet group (N group) and a high-fat and -cholesterol diet group (HF group), which was further divided into a high-fat and high-cholesterol with a 2.5% tumeric powder supplement group (TPA group) and 5% turmeric powder-supplemented group (TPB group). Body weight gain and food efficiency ratio were significantly increased in the N group as compared to the HF group, but they were significantly decreased in turmeric-supplemented groups as compared to the HF group. The total serum cholesterol and TG contents of the turmeric-supplemented groups were decreased as compared to those of the HF group. Especially, the TPB group was significantly decreased as compared to the HF group. The serum LDL-cholesterol and AI of the turmeric-supplemented groups were decreased as compared to the HF group. The hepatic triglyceride contents of all groups supplemented with the tumeric powder were significantly decreased as compared to the HF group. The hepatic UDP-glucuronyl transferase activity of the turmeric-supplemented groups was increased as compared to the HF group. In particular, the TPB group was significantly increased as compared to the HF group. The serum total bile acid contents of the turmeric-supplemented groups were increased as compared to the HF group. These results suggest that tumeric has powerful health benefits that are created via UDP-glucuronyl transferase activity, bile acid, and lipid metabolism.

키워드

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