Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Protective Effect of Hericiumerinaceus Extracts on Hepatic Injury Induced by Benzo($\alpha$)pyrene in Mice

노루궁뎅이 버섯 추출물의 벤조피렌 유발 간 독성에 대한 보호효과

  • 박선희 (영남대학교 식품영양학과) ;
  • 김지영 (영남대학교 식품영양학과) ;
  • 장종선 (영남대학교 식품영양학과) ;
  • 오은정 (영남대학교 식품영양학과) ;
  • 김옥미 (대경대학 호텔쿠크리과) ;
  • 배준태 (영남대학교 식품영양학과) ;
  • 김현정 (영남대학교 식품영양학과) ;
  • 하대중 (대경대학 호텔쿠크리과) ;
  • 이갑랑 (영남대학교 식품영양학과)
  • Published : 2001.10.01
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Abstract

The protective effect of Hericium erinaceus methanol extract was investigated on benzo($\alpha$)pyrene(B($\alpha$)P) induced hepatotoxicity in mice, Hericium erinaceus extract was intraperitioneally injected once a hay for successive 5 days. followed by treatment with B($\alpha$)P on the fifth day. The elevated activities of serum aminotransferase and hepatic cytochrome P-450 by B($\alpha$)P was decreased by pretretament with Hericium erinaceus extract. Moreover, hepatic lipid peroxide content and glutathions S-transferase activity increased by B($\alpha$)P were significantly decrease, but depletion of glutathione content induced by B($\alpha$)P was prevented by Hericium erinaceus extract. In addition, the increased activities of superoxide diamutase, catalase and glutathions peroxidase after B($\alpha$)P-treatment were decreasd. Immunoblott analysis of hepatic microsomes showed that methanol extract of Hericium erinaceus suppressed protein level of the cytochrome P-450 1AI increaed by B($\alpha$)P. These results suggest that Hericium erinaceus extract may protect liver from damage induced by B($\alpha$)P.

노루궁뎅이 버섯의 간 손상 억제 작용을 확인하고자 B($\alpha$)P투여로 간 독성이 유발된 마우스에서 과산화지질의 생성, 항산화에 관련된 효소 및 물질의 변화를 살펴본 결과, B($\alpha$)P투여로 인해 혈청 ALT와 AST의 활성, 간조직 중의 과산화지질 함량, cytochrome P450 함량, SOD, catalase 그리고 GSH-Px의 활성이 유의적으로 증가하였고, GSH함량과 GST활성은 감소하였다. 반면 노루궁뎅이 버섯 메탄올 추출물의 전처리로 인해 ALT 와 AST의 활성, 과산화지질 함량, cyto-chrome P450 함량 그리고 항상화효소인 SOd, catalase 및 GSH-Px의 활성이 유의적으로 감소하였으며 GSH 함량과 GST 활성은 증가하였다. 그리고 마우스의 간 조직에서 cyto-chrome P450 1Al isozyme의 단백질 발현을 western blotting 으로 조사한 결과, B($\alpha$)P투여로 대조군에 비해 현저히 증가한 단백질 발현이 노루궁뎅이 버섯 메탄올 추출물을 투여함으로써 감소됨을 확인하였다. 이상의 결과로 노루궁뎅이 버섯 메탄올 추출물은 생체 내에서 자유기로 인해 야기되는 간장의 산화적 손상을 효과적으로 억제할 수 있을 것으로 사료된다.

Keywords

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