한국약용작물학회지 (Korean Journal of Medicinal Crop Science)

  • 제15권6호
  • /
  • Pages.437-443
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  • 2007
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  • 1225-9306(pISSN)
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  • 2288-0186(eISSN)
한국약용작물학회 (The Korean Society of Medicinal Crop Science)
권호 표지

홍삼의 장기 투여가 흰쥐 간 대사효소 유도에 미치는 영향

Modulation of Cytochrome P-450 Induction by Long-Term Supplementation with Korean Red Ginseng to Rats

  • 임흥빈 (충북대학교 농업생명환경대학 특용식물학과)
  • Lim, Heung-Bin (Department of Industrial Plant Science and Technology, College of Agriculture, Life and Environment Science, Chungbuk National University)
  • 발행 : 2007.12.30
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초록

홍삼의 물추출물을 장기간 흰쥐에 급여했을 때 흰쥐 간의 이물질대사효소 활성도 유도에 미치는 영향을 조사하였다. 홍삼 물추출물의 급여농도는 25 mg/kg body weight이었으며, 간의 이물질대사효소 유도제는 항경련제 PB (80 mg/kg)와 발암제 3-MC (20 mg/kg)을 사용하였다. 간에서 이물질대사에 관여하는 cytochrome P-450의 함량, cytochrome P-450 dependent monooxygenase인 ECOD와 BPDM, cytochrome P-450 reductase와 GST의 활성도는 PB와 3-MC 투여에 의해서 대조군과 홍삼투여군 모두 크게 증가되었다. 흰쥐의 나이가 3개월에서는 두 유도제를 투여했을 때 이물질대사효소의 활성은 대조군이 인삼투여군에 비해 상대적으로 더 많이 유도되었다. 그러나 12개월에서는 두 시험군 모두 유도정도가 감소하였으나 홍삼투여군은 그 활성도 감소정도가 대조군에 비해 상대적으로 크지 않았다. 한편 두 그룹 모두 이물질대사 효소 중 cytochrome $B_5$ 함량과 cytochrome $b_5$ reductase의 활성도는 PB와 3-MC 투여에 의해서 뚜렷한 차이를 보이지 않았다. 따라서 이러한 결과는 흰쥐에 홍삼의 장기간 급여는 간에서 효소유도제의 이물질대사효소유도 정도를 조절하여 무독화에 기여할 수 있다는 것을 의미한다.

This study was carried out to investigate the effect of dietary supplementation with red ginseng water-extracts on the induction of microsomal cytochrome P-450 in rats. Phenobarbital (PB) and 3-methylcholanthrene (3-MC), P-450 inducers, were administered to 3- or 12-month old rats received red ginseng extracts (25 mg/kg) from 6 weeks to 12 months for 3 days. PB and 3-MC increased levels of P-450, P-450 reductase, ethoxycoumarin O-deethylase, benzphetamine N-demethylase and glutathione-S-transferase in the liver of rats. However, chronic administration of red ginseng significantly reduced these increase of enzyme levels induced by P-450 inducers. Chronic administration of red ginseng did not affect the induction of cytochrome $b_5$ and NADH cytochrome $b_5$ reductase by P-450 inducers. It is suggested that the induction of cytochrome P-450 system in the liver in relation to xenobiotics toxicity can be modulated by long-term supplementation with Korean red ginseng to rats.

키워드

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