Subject Area物理化学
Impact of the intestinal metabolites of ginsenosides on human cytochrome P450 enzymes
Liu Y(刘勇); Zhang JW(张江伟); Wang YH(王永华); Deng MC(邓麦村); Yang L(杨凌)
Conference Name2005 Hangzhou International Conference on Drug Metabolism
Conference Date2005-10-17
Conference Place中国
AbstractThe intestinal metabolites of ginsenosides rather than naturally occurring ginsenosides are really responsible for the main pharmacological activities of ginseng, but the knowledge concerning the effect of those on human metabolism enzymes is still lacking. We found that the intestinal metabolites of ginsenosides demonstrate a wide range of inhibition of CYP-mediated metabolism and in some cases exhibit activation rather than inhibition. It is noteworthy that compound K (C-K), protopanaxadiol (Ppd), and protopanaxatriol (Ppt) all exhibit intermediately inhibitory activity against CYP2C9 activity, and Ppd and Ppt also exhibit potent inhibition of an enzyme-kinetically competitive type against CYP3A4 activity. Further study showed that the inhibition on CYPs is not due to mechanism-based. The results suggest that the ginseng-derived products might influence CYPs activity via their intestinal metabolites, which might be a noteworthy new pathway resulting in clinically significant drug-drug interactions.
Document Type会议论文
Corresponding AuthorYang L(杨凌)
Recommended Citation
GB/T 7714
Liu Y,Zhang JW,Wang YH,et al. Impact of the intestinal metabolites of ginsenosides on human cytochrome P450 enzymes[C],2005:56/1.
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