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Cordycepin 고함유 동충하초(Cordyceps militaris JLM 0636)의 orotic acid 유발 흰쥐의 지방간 개선효과

Improvement Effect of Cordycepin-Enriched Cordyceps militaris JLM 0636 Powder against Orotic Acid-Induced Fatty Liver in Rats

  • 차재영 (대선주조(주)기술연구소) ;
  • 안희영 (동아대학교 대학원 의생명과학과) ;
  • 허수진 (동아대학교 대학원 의생명과학과) ;
  • 박상현 (동아대학교 생명공학과) ;
  • 정영기 (동아대학교 생명공학과) ;
  • 조영수 (동아대학교 생명공학과)
  • Cha, Jae-Young (Technical Research Institute, Daesun Distilling Co., Ltd.) ;
  • Ahn, Hee-Young (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Heo, Su-Jin (Department of Medical Biosciences, Graduate School, Dong-A University) ;
  • Park, Sang-Hyun (Department of Biotechnology, Dong-A University) ;
  • Jeong, Yong-Kee (Department of Biotechnology, Dong-A University) ;
  • Cho, Young-Su (Department of Biotechnology, Dong-A University)
  • 투고 : 2011.07.05
  • 심사 : 2011.09.08
  • 발행 : 2011.09.30

초록

동충하초의 다양한 생리 활성 물질들 중 cordycepin의 함량을 측정한 결과 육종된 번데기 동충하초(Cordyceps militaris JLM 0636)가 7.42 mg/g으로 시판의 번데기 동충하초보다 최고 7배 정도 높게 나타났으며 눈꽃 동충하초는 cordycepin이 검출되지 않았다. Cordycepin 고함유 번데기 동충하초의 지방간 개선효과를 검토하기 위해 오르트산 유발 지방간 흰쥐에 눈꽃 동충하초, 번데기 동충하초, cordycepin 함량을 높인 번데기 동충하초를 각각 3% 식이 첨가 시킨 후 혈청 임상생화학적 특성과 간장 조직 검사를 조사하였다. 그 결과, 간장에서의 triglyceride 농도가 증가함으로서 지방간 유발이 확인되었고 혈청 triglyceride 농도가 감소함으로서 지방간에서 나타나는 전형적인 현상이 확인되었다. 이에 반해 OA투여와 함께 동충하초를 동시에 투여한 군들에서는 간장의 triglyceride 농도가 감소하고 혈청 triglyceride 농도가 증가해서 지방간이 개선되는 효과가 확인되었다. 또한 간장의 형태학적 및 조직병리학적 관찰에서도 OA유발 지방간에서는 지방의 침착과 지방세포수가 현저히 증가되었으나, 각각의 동충하초 동시투여에 의한 간장 및 혈청 triglyceride의 감소와 함께 간장 조직의 지방침착 정도 및 지방 세포수의 감소로 지방간 개선 효과가 다시 한번 확인되었고, 그 중 cordycepin 고함유 번데기 동충하초 투여군에서 가장 근접하게 정상군의 간장과 유사한 형태를 보임으로서 cordycepin이 OA 유발 지방간에 개선효과가 있는 것으로 사료된다.

The concentration of cordycepin produced by crossbred Cordyceps militaris JLM 0636 (CM${\alpha}$) was 7.42 mg/g dry weight, which was 7-fold higher than that of C. militaris (CM). However, cordycepin was not detected in Paecilomyces japonica (PJ). The improvement effects of CM${\alpha}$, CM and PJ on orotic acid (OA)-induced fatty liver in male Sprague-Dawley rats was investigated. Rats were randomly divided into five groups (n=6) based on five dietary categories: normal (N), OA control (C), OA plus 3% (w/w) PJ (PJ), OA plus 3% CM (CM), and OA plus 3% CM${\alpha}$ (CM${\alpha}$). OA treatment induced the retardation of body weight gain and enlargement of the liver. The concentration of hepatic triglyceride was markedly increased by OA-feeding, whereas this rise was significantly reduced by simultaneous feeding of OA, PJ, CM, and CM${\alpha}$, and this phenomenon was more pronounced by cordycepin-enriched CM${\alpha}$. The contents of total lipid, triglyceride, and free fatty acid in the serum were significantly or slightly lower in the OA control group than those of the N group, but there were no significant differences among the OA treatment groups. The hepatocytes in the OA-induced fatty liver contained numerous large lipid droplets, but PJ, CM, and CM${\alpha}$ feeding prevented the OA-induced lipid droplet accumulation in the hepatocytes. This effect was more pronounced in cordycepin-enriched CM${\alpha}$ than in PJ or CM in OA treatment rats. Accordingly, cordycepin-enriched CM${\alpha}$ could be an ideal candidate material as a dietary supplement in healthy functional foods to improve the effects of fatty liver.

키워드

참고문헌

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피인용 문헌

  1. Protective effect of cordycepin-enriched Cordyceps militaris on alcoholic hepatotoxicity in Sprague–Dawley rats vol.60, 2013, https://doi.org/10.1016/j.fct.2013.07.033
  2. Fibrinolytic Activity and Chemical Properties of Cordycepin-Enriched Cordyceps militaris JLM 0636 vol.22, pp.2, 2012, https://doi.org/10.5352/JLS.2012.22.2.226
  3. Effect of Cordycepin-increased Cordyceps militaris Powder on Tissues Lipid Peroxidation and Antioxidative Activity in Carbon Tetrachloride-induced Hepatic Damage in Rats vol.23, pp.7, 2013, https://doi.org/10.5352/JLS.2013.23.7.904
  4. The Analysis of Cordycepin and Alcohol Content in accordance with The Various Manufacturing Process of The Liqueur Containing The Cordyceps Extract vol.16, pp.12, 2015, https://doi.org/10.5762/KAIS.2015.16.12.8292