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Protective Effects of Extracts of Protaetia brevitarsis on Carbon tetrachloride-induced Hepatotoxicity in the Mice

사염화탄소에 의해 유발된 흰쥐의 간독성에 미치는 흰점박이꽃무지 추출물의 간보호 효과

  • Chon, Jeong-Woo (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Kweon, HaeYong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Jo, You-Young (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Yeo, Joo Hong (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Heui Sam (Sericultural & Apicultural Materials Division, National Academy of Agricultural Science, RDA)
  • 전정우 (농촌진흥청 국립농업과학원 농업생물부 잠사양봉소재과) ;
  • 권해용 (농촌진흥청 국립농업과학원 농업생물부 잠사양봉소재과) ;
  • 조유영 (농촌진흥청 국립농업과학원 농업생물부 잠사양봉소재과) ;
  • 여주홍 (농촌진흥청 국립농업과학원 농업생물부 잠사양봉소재과) ;
  • 이희삼 (농촌진흥청 국립농업과학원 농업생물부 잠사양봉소재과)
  • Received : 2012.06.07
  • Accepted : 2012.10.12
  • Published : 2012.12.30

Abstract

To investigate the effects of Protaetia. brevitarsis extracts on the protection against liver damage by carbon tetrachloride($CCl_4$) in rat, two kinds of experiment were performed, firstly by the primary hepatocyte culture and secondly by the animal feeding. The primary hepatocyte culture with the extracts of P.brevitarsis showed significantly low activities of GPT, bile acid, and bilirubin, indicating an excellent protective effect against liver damage by $CCl_4$. Especially, below molecular weight 1,000 blew the water to have 32.1% recovery degree. In the seconde experiment, serum GPT activity was significantly decreased in water fraction of P. brevitarsis compared to $CCl_4$ treatment by 98.2%. Serum concentration of bile acid and bilirubin were tended to increased by $CCl_4$ treatment, but water fraction of P. brevitarsis and silymarin recovered the level. These consistent results in vitro and in vivo suggest that the extracts of P. brevitarsis may have strong protective effects against liver damage induced by the potential toxicants such as $CCl_4$.

본 연구는 사염화탄소에 의하여 유발되는 지질과산화에 의한 간독성에 대한 흰점박이꽃무지 추출물의 보호효과를 일차배양한 간세포와 간독성 흰쥐에서 GPT, bile acid, bilirubin 등의 활성 지표를 통해 간독성 회복효과를 알아보고자 하였다. 사염화탄소로 유발시킨 일차배양 간세포에 대한 흰점박이꽃무지와 장수하늘소 추출물의 간독성 회복효과는 각각 41.2%와 8.4%로 흰점박이꽃무지 유충 추출물이 간독성 회복 효과가 높게 나타났으며, 용매 추출별로는 흰점박이꽃무지 메탄올 추출물보다는 물 추출물이 농도의존적으로 간독성 회복효과가 있음을 확인하였다. 사염화탄소에 의해 간독성이 유도된 흰쥐에 흰점박이꽃무지 물추출물 분획별로 처리하였을 때, 분자량 낮을수록 효과적이었으며, 분자량이 1,000이하의 분획물에서 32.1%로 간독성 회복 효과가 우수하였다. 또한 흰쥐에 사염화탄소를 복강투여로 간독성을 유발한 후 흰점박이꽃무지 물분획물을 경구투여할 경우에 혈청 GPT, bile acid와 bilirubin의 활성이 정상군보다는 높았지만 사염화탄소군보다 유의적으로 감소하였고, 간섬유화와 관련된 hydroxyproline의 생성 억제에서는 분자량이 1000이하의 분획물에서 사염화탄소군보다 유의성 있게 생성을 억제하여 간섬유화를 예방하는 것으로 확인하였다. 중심정맥 쪽에 아주 경미한 허혈성 변성 이외에는 다른 병변을 찾을 수 없었고 세포내에 organelle이 유지된 편이고 콜라겐 형성이 매우 많이 줄어들어 병리조직학적으로도 간보호 효과가 있었음을 확인하였다. 이에 간독성 지표 활성을 긍정적으로 결과를 확인한 흰점박이꽃무지 추출물의 간질환 치료보조제나 건강기능성식품 소재 개발 가능성을 확인하였다.

Keywords

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