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Research ArticleArticle

Combinatorial Metabolism Notably Affects Human Systemic Exposure to Ginsenosides from Orally Administered Extract of Panax notoginseng Roots (Sanqi)

Zheyi Hu, Junling Yang, Chen Cheng, Yuhong Huang, Feifei Du, Fengqing Wang, Wei Niu, Fang Xu, Rongrong Jiang, Xiumei Gao and Chuan Li
Drug Metabolism and Disposition July 2013, 41 (7) 1457-1469; DOI: https://doi.org/10.1124/dmd.113.051391
Zheyi Hu
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Junling Yang
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Chen Cheng
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Yuhong Huang
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Feifei Du
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Fengqing Wang
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Wei Niu
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Fang Xu
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Rongrong Jiang
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Xiumei Gao
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Chuan Li
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China (Z.H., J.Y., C.C., F.D., F.W., W.N., F.X., R.J., C.L.); Tianjin University of Traditional Chinese Medicine, Tianjin, China (Y.H., X.G.); and the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China (C.L.)
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Abstract

Ginsenosides are medicinal ingredients of the cardiovascular herb Panax notoginseng roots (Sanqi). Here, we implemented a human study (ChiCTR-ONC-09000603; www.chictr.org) to characterize pharmacokinetics and metabolism of ginsenosides from an orally ingested Sanqi-extract (a 1:10 water extract of Sanqi) and the human plasma and urine samples were analyzed by liquid chromatography-mass spectrometry. Plasma and urinary compounds derived from ginsenosides included: 1) intestinally absorbed ginsenosides Ra3, Rb1, Rd, F2, Rg1, and notoginsenoside R1; and 2) the deglycosylated products compound-K, 20(S)-protopanaxadiol, 20(S)-protopanaxatriol, and their oxidized metabolites. The systemic exposure levels of the first group compounds increased as the Sanqi-extract dose increased, but those of the second group compounds were dose-independent. The oxidized metabolites of 20(S)-protopanaxadiol and 20(S)-protopanaxatriol represented the major circulating forms of ginsenosides in the bloodstream, despite their large interindividual differences in exposure level. The metabolites were formed via combinatorial metabolism that consisted of a rate-limiting step of ginsenoside deglycosylation by the colonic microflora and a subsequent step of sapogenin oxidation by the enterohepatic cytochrome P450 enzymes. Significant accumulation of plasma ginsenosides and metabolites occurred in the human subjects receiving 3-week subchronic treatment with the Sanqi-extract. Plasma 20(S)-protopanaxadiol and 20(S)-protopanaxatriol could be used as pharmacokinetic markers to reflect the subjects’ microbial activities, as well as the timely-changes and interindividual differences in plasma levels of their respective oxidized metabolites. The information gained from the current study is relevant to pharmacology and therapeutics of Sanqi.

Footnotes

    • Received February 2, 2013.
    • Accepted May 6, 2013.
  • Zheyi Hu, Junling Yang, and Chen Cheng contributed equally to the study.

  • This work was supported by the National Science Fund of China for Distinguished Young Scholars [Grant 30925044]; the National Basic Research Program of China [Grant 2012CB518403]; the National Science and Technology Major Project of China “Key New Drug Creation and Manufacturing Program” [Grants 2009ZX09304-002, 2012ZX09304007, and 2012ZX09303010]; and the Knowledge Innovation Program of the Chinese Academy of Sciences [Grant KSCX2-YW-R-191].

  • This work was previously presented in part as an oral presentation: Hu Z-Y (2011) Oxidation of Ginsenosides Aglycones after Oral Administration of Standardized Panax notoginseng Extract to Healthy Volunteers. Asian Pacific Regional Meeting of ISSX; 2011 Apr 22–25; Tainan, Taiwan.

  • ↵dx.doi.org/10.1124/dmd.113.051391.

  • Embedded ImageThis article has supplemental material available at dmd.aspetjournals.org.

  • Copyright © 2013 by The American Society for Pharmacology and Experimental Therapeutics
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Drug Metabolism and Disposition: 41 (7)
Drug Metabolism and Disposition
Vol. 41, Issue 7
1 Jul 2013
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Research ArticleArticle

Pharmacokinetics and Metabolism of Ginsenosides in Humans

Zheyi Hu, Junling Yang, Chen Cheng, Yuhong Huang, Feifei Du, Fengqing Wang, Wei Niu, Fang Xu, Rongrong Jiang, Xiumei Gao and Chuan Li
Drug Metabolism and Disposition July 1, 2013, 41 (7) 1457-1469; DOI: https://doi.org/10.1124/dmd.113.051391

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Research ArticleArticle

Pharmacokinetics and Metabolism of Ginsenosides in Humans

Zheyi Hu, Junling Yang, Chen Cheng, Yuhong Huang, Feifei Du, Fengqing Wang, Wei Niu, Fang Xu, Rongrong Jiang, Xiumei Gao and Chuan Li
Drug Metabolism and Disposition July 1, 2013, 41 (7) 1457-1469; DOI: https://doi.org/10.1124/dmd.113.051391
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