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    n-Butylidenephthalide (NBDP) is one of the bioactive constituents originally isolated from Ligusticum chuanxiong Hort. The aim of this study was to study the metabolic profiles of NBDP in rat and human liver microsomes. NBDP was individually incubated with liver microsomes of rat and human at 37°C for 1 h and the samples incubated were analyzed by ultra-high-performance liquid chromatography combined with high-resolution mass spectrometry. The identities of the metabolites were identified by accurate masses, product ions and retention times. Under the current conditions, a total of 14 metabolites were detected and identified. M12, M13 and M14 were biosynthesized and unambiguously characterized by nuclear magnetic resonance spectroscopy. All the metabolites can be detected in rat liver microsomes, whereas in human liver microsomes, M1, M3, M4, M5, M6 and M7 were not detected. Our results demonstrated that the metabolic pathways of NBDP included hydroxylation, hydration, hydrolysis and glutathione conjugation. This study provides an overview of the metabolic profiles of NBDP in vitro, which is helpful to understand the action of this compound. © 2021 John Wiley & Sons, Ltd.


    Hairong Lin, Xiulan Zhang, Xiuqin Zhang, Shixin Xia. Identification of the metabolites of n-butylidenephthalide in rat and human liver microsomes by liquid chromatography-high-resolution mass spectrometry. Biomedical chromatography : BMC. 2021 Aug;35(8):e5115

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    PMID: 33713459

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