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Profiling and Pharmacokinetic Studies of Alkaloids in Rats After Oral Administration of Zanthoxylum nitidum Decoction by UPLC-Q-TOF-MS/MS and HPLC-MS/MS.


ABSTRACT: Zanthoxylum nitidum (Roxb.) DC (Rutaceae), called as "liangmianzhen" in China, is well known for its anti-inflammation and analgesic effect. Alkaloids are its main active constituents. However, little has been known about the absorption of main alkaloids in vivo. In this study, an ultra-performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry was employed for identification of absorbed alkaloids in rats after oral administration of Z. nitidum decoction. By analyzing the fragmentation patterns, a total of nineteen alkaloids were exactly or tentatively identified in rat plasma after treatment, of which magnoflorine, ?-allocryptopine, and skimmianine are dominant. Moreover, a high performance liquid chromatography coupled mass spectrometry method was developed for simultaneous quantification of magnoflorine, ?-allocryptopine, and skimmianine, and successfully applied to pharmacokinetic study in rats after oral administration of Z. nitidum decoction. The research would contribute to comprehensive understanding of the material basis and function mechanism of Z. nitidum decoction.

SUBMITTER: Huang A 

PROVIDER: S-EPMC6384758 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Profiling and Pharmacokinetic Studies of Alkaloids in Rats After Oral Administration of <i>Zanthoxylum nitidum</i> Decoction by UPLC-Q-TOF-MS/MS and HPLC-MS/MS.

Huang Aihua A   Chi Yuguang Y   Liu Jiawei J   Wang Mincun M   Qin Jialiang J   Ou Lijuan L   Chen Weiwen W   Zhao Zhongxiang Z   Zhan Ruoting R   Xu Hui H  

Molecules (Basel, Switzerland) 20190207 3


<i>Zanthoxylum nitidum</i> (Roxb.) DC (Rutaceae), called as "liangmianzhen" in China, is well known for its anti-inflammation and analgesic effect. Alkaloids are its main active constituents. However, little has been known about the absorption of main alkaloids in vivo. In this study, an ultra-performance liquid chromatography coupled with quadrupole-time-of-flight mass spectrometry was employed for identification of absorbed alkaloids in rats after oral administration of <i>Z. nitidum</i> decoc  ...[more]

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