Characterization of chemical constituents and metabolites in rat plasma after oral administration of San Miao Wan by ultra-high performance liquid chromatography tandem Q-Exactive Orbitrap mass spectrometry
2021
Ma, Yi | Huang, Bixia | Tang, Weiwei | Li, Ping | Chen, Jun
San Miao Wan (SMW), composed of Phellodendri Chinensis Cortex, Atractylodis Lanceae Rhizoma and Achyranthis Bidentatae Radix, is widely used for the treatment of gout, hyperuricemia and other diseases. In the present study, an overall identification strategy based on ultra-high performance liquid chromatography tandem Q-Exactive Orbitrap mass spectrometry (UPLC-Q-Exactive Orbitrap/MS) method was established to characterize the multiple chemical constituents of SMW and its metabolites in rat plasma after oral administration of SMW. A total of 76 constituents including alkaloids, organic acids, lactones, terpenes, saponins, sterones and others types of components were identified in the extract of SMW. After the oral administration of SMW, 47 prototype constituents and 66 metabolites were identified in rat plasma samples. The related metabolic pathways mainly involved reduction, demethylation, hydroxylation, methylation and glucuronide conjunction. The proposed method could be a useful approach to identify the chemical constituents of SMW and its metabolic components. Our study provide a universal strategy for the analysis of the components and metabolites of the traditional Chinese medicine prescription (TCP) extracts and plasma after administration using UPLC-Q-Exactive Orbitrap/MS method. It will assist with clarifying the substance basis of effective components in SMW. It also provides a rapid method for overall analysis of chemical constituents and metabolites of SMW.
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