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The in vivo absorbed constituents and metabolites of Danshen decoction in rats identified by HPLC with electrospray ionization tandem ion trap and time‐of‐flight mass spectrometry
Author(s) -
Zhao Xin,
Yang DongHui,
Xu Feng,
Huang Shuai,
Zhang Lei,
Liu GuangXue,
Cai ShaoQing
Publication year - 2015
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.3275
Subject(s) - chemistry , chromatography , decoction , salvia miltiorrhiza , formic acid , electrospray ionization , caffeic acid , glucuronidation , high performance liquid chromatography , tandem mass spectrometry , in vivo , mass spectrometry , ferulic acid , liquiritin , antioxidant , traditional medicine , biochemistry , traditional chinese medicine , enzyme , pathology , biology , microsome , medicine , alternative medicine , microbiology and biotechnology
Danshen, the dried root and rhizome of Salvia miltiorrhiza Bunge, is widely used for the treatment of cardiovascular and cerebrovascular diseases. This research focuses on the in vivo metabolism of Danshen decoction (DSD) in rats. After oral administration of DSD, the absorptive constituents and their metabolites in urine and plasma were analyzed by HPLC coupled with a photodiode array detector and electrospray ionization hybrid ion trap and time‐of‐flight mass spectrometry. Samples were separated on a C 18 column by gradient elution using 0.1% (v/v) aqueous formic acid and acetonitrile. As a result, 93 compounds from urine and 38 compounds from plasma were identified. Among them, lipo‐soluble diterpenoids (24 in urine and 15 in plasma) were reported for the first time as in vivo metabolites of DSD. According to the quantities and contents of the identified compounds, tanshinone IIA, cryptotanshinone and tanshinone I were deduced to be the major absorptive diterpenoids of DSD. Moreover, nine water‐soluble phenolics (caffeic acid, ferulic acid, danshensu, etc.) were proved to be the major absorptive constituents as reported. Most of the absorbed constituents underwent sulfation, glucuronidation, hydrogenation and hydroxylation in vivo . This investigation provided scientific evidence to obtain a more comprehensive metabolic profile of DSD. Copyright © 2014 John Wiley & Sons, Ltd.