Abstract
Objective: This study aims to investigate the main metabolites and metabolic pathways of Portulacatone B in rats, which is an alkaloid isolated from Portulaca oleracea L. Methods: Portulacatone B was administered through the tail vein of the rat, and the orbital blood at 10 and 30 min and urine and feces within 24 h were collected. The metabolites and metabolic pathways in the rat were researched by ultra-high performance liquid chromatographyelectrospray coupled with quadrupole-time of flight mass spectrometry (UHPLC-ESI-QTOF/ MS). Results: The research results of the metabolites and metabolic pathways of Portulacatone B showed that after administration through the tail vein of rats, 3 metabolites were found in the plasma sample, 2 metabolites in the urine sample, and one metabolite in the feces sample. The main metabolic pathways were found to be oxidation, hydrolysis, methylation, glucuronidation, and sulfonation. Conclusion: Six metabolites were found in the rat’s plasma, urine, and feces samples, and the metabolic pathways included oxidation, hydrolysis, methylation, glucuronidation, and sulfonation process.
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