Effects of Phyto-Extract Mixture on the Nicotine Decomposition

식물추출혼합물의 니코틴 분해능에 미치는 효과

  • 정종문 (수원대학교 생명과학과) ;
  • 김지훈 ((주)유젠바이오 생명과학연구소) ;
  • 이동희 (서울시립대 생명과학과) ;
  • 조희재 ((주)제일제당 제약연구소)
  • Published : 2002.03.01

Abstract

Cotinine, one of nicotine metabolites, has been blown to reduce 4-(methylnitro samino)-1-(3-pyridyl)-1-butanone(NNK)- induced $O^{6}$MeG DNA adducts significantly in A/J mice when administered together with NNK. In order to examine the effects of phyto-extract mixture on the conversion of cotinine from nicotine, cellular and clinical experiments were carried out. When the phyto-extract mixture was added to culture media, human liver cells (FLCFR5) produced cotinine from nicotine 2~3 times compared to the control. The phyto-extract mixture which was microinjected into Xenopus oocyte along with nicotine showed the almost similar production of cotinine compared with the results of hepatic cell culture. In clinical test employing 17 to 20 healthy men, concentrations of urinary cotinine derived from smoking after taking photo-extract mixture increased up to 2 times compared to the control group. These results indicatethat the phyto-extract mixture can increase the metabolic efficiency of nicotine to cotinine, leading to the reduced formation of $O^{6}$MeG DNA adducts.

천연식물소재 및 한약재 추출제재인 식물추출 혼합제재가 인체내에서 니코틴 분해능에 미치는 영향을 FRCFR5 세포주, Xenopus oocyte, 임상 실험을 통하여 검토하였다. 본 실험은 체내에 잔존하는 니코틴이 식물추출 홉합 제재에 의해 무독한 대사산물인 코티닌으로 분해량이 증가되고 동시에 NNK, NNN, NNA 등과 같은 폐암 유발물질인 니트로사민 유도체 생성 경로가 억제될 것이라는 가정을 전제로 실험을 수행하였다. 본 실험 결과에서 볼 수 있듯이 식물추출 혼합 제재에는 니코틴에서 코티닌으로 전환시키는 대사 활성물질이 함유되어 있다는 사실을 알 수 있으나, 실제로 어떤 유효성분들이 관여하는지 그리고 정확한 작용 기작을 규명하기 위해서는 더 많은 분석 및 생화학적 연구가 앞으로 수행되어야 할 것이다. 간세포에서 유래된 FRCFR5 세포주 실험 결과, 니코틴과 식물추출 혼합 제재가 첨가된 배지에서 니코틴과 물을 첨가한 배지보다 니코틴에서 코티닌으로 전환능력이 약 2∼3배 높게 나타났으며, 이러한 결과는 Xenopus oocyte에 직접 주사한 경우와 거의 비슷한 양상을 보였다. 임상실험 결과 식물추출 혼합 제재음료를 음용하고 담배를 피운 실험군이 물을 음용하고 담배를 피운 대조군에 비해 약 2배 정도 높은 코티닌 함량을 나타내었다. 이는 실험군의 소변 중에 계속적으로 다량의 코티닌이 배출되는 것을 의미하며, 식물추출 혼합 제재 섭취시 체내에 존재하는 니코틴이 코티닌으로 지속적이면서 효과적으로 전환되는 것을 말한다 이상의 생체 내·외 실험에서 알 수 있듯이 식물추출혼합물은 니코틴에서 코티닌 생성을 약 2배정도 증가 시키는 것을 알 수 있었다.

Keywords

References

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