Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effect of Cordycepin-Enriched Cordyceps militaris Powder on Tissues Lipid Peroxidation and Antioxidative Activity in Orotic Acid-Induced Fatty Liver Model Rats

Cordycepin이 orotic acid 유발 지방간 흰쥐의 과산화 지질 농도 및 항산화 활성에 미치는 영향

  • Ahn, Hee-Young (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Cha, Jae-Young (Technical Research Institute, Daesun Distilling Co., Ltd.) ;
  • Heo, Su-Jin (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Kang, Min-Jeong (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Lee, Jae-Hong (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Park, Sang-Hyun (MieV Fermentation Science Research Institute, MieV Co. Ltd.) ;
  • Cho, Young-Su (Department of Biotechnology, Dong-A University)
  • 안희영 (동아대학교 대학원 의생명과학과) ;
  • 차재영 (대선주조(주) 기술연구소) ;
  • 허수진 (동아대학교 대학원 의생명과학과) ;
  • 강민정 (동아대학교 대학원 의생명과학과) ;
  • 이재홍 (동아대학교 대학원 의생명과학과) ;
  • 박상현 (미애부 발효과학 연구소) ;
  • 조영수 (동아대학교 생명공학과)
  • Received : 2011.07.05
  • Accepted : 2011.10.13
  • Published : 2011.10.31
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Abstract

This study is aimed to evaluate the protective effect of Cordycepin-enriched Cordyceps militaris (CM${\alpha}$) strain on orotic acid (OA)-induced fatty liver in rats. OA treatment induced the retardation of body weight gain and enlargement of the liver. The activities of liver marker enzymes, alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), Alk. phosphatase and Cholinesterase were increased when treated with OA, but these parameters were significantly decreased in the CM${\alpha}$ group. The current study observed significant elevations of thiobarbituric acid-reactive substance (TBARS) levels. However, among the OA groups, the CM${\alpha}$ group showed significantly low TBARS levels of hepatic homogenate. The OA group resulted in a significant decrease in the levels of plasma and hepatic glutathione, but these reductions were significantly increased in the CM${\alpha}$ group. These effects were more pronounced in the CM${\alpha}$ group than in the PJ or CM groups in Orotic acid treated rats. Accordingly, Cordycepin-enriched Cordyceps militaris (CM${\alpha}$) may be an ideal candidate for hepatoprotective effects in animal models.

눈꽃 동충하초, 번데기 동충하초, Cordycepin 고함유 번데기 동충하초 분말을 식이 중에 각각 3% 수준으로 첨가하여 10일간 흰쥐에 급여한후 임상생화학적 특성 및 조직 내 항산화 활성 및 간 조직에 미치는 영향을 검토하였다. 체중 증가량과, 식이 섭취량은 각 실험군 모두 감소 하였으나, 음료섭취량은 증가하였다. 간 손상 임상지표인 AST, ALT, LDH, ALP 활성도 각 실험군 모두 저하하였으며, 대조군과 비교하여 간 조직의 상대 중량도 감소하였다. 각 조직과 혈청의 과산화지질(TBARS)을 측정한 결과 대조군에 비해 각 실험군에서 유의적으로 감소하였으며, 그 중 Cordycepin 고함유 번데기 동충하초 분말을 투여한 군에서 가장 낮은 함량을 보였다. 특히 Cordycepin 고함유 번데기 동충하초는 간장 조직 내에서 높은 과산화지질 억제작용을 나타내어 조직 내 항산화물질로 잘 알려진 glutathione농도 또한 대조군에 비해 높은 함량을 보였다. 간장 내 지방산화를 촉진하는 Fe와 생체내 항산화물질로 잘 알려진 Zn을 측정한 결과 동충하초 첨가 식이를 섭취한 군에서 증가하였다. 이상의 실험결과 Cordycepin 고함유 번데기 동충하초는 항 동맥경화 작용 뿐만 아니라 간 조직 내 항산화 물질 증가에 의한 산화스트레스를 경감시킴으로써 향후 간 독성 개선 효능을 가지는 건강기능식품 개발의 소재로 활용될 가능성이 높은 것으로 판단되어 진다.

Keywords

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