School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China.
School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang 050000, China.
Molecules. 2019 Jul 23;24(14):2658. doi: 10.3390/molecules24142658.
Eupatorin is the major bioactive component of Java tea (), exhibiting strong anticancer and anti-inflammatory activities. However, no research on the metabolism of eupatorin has been reported to date. In the present study, ultra-high-performance liquid chromatography coupled with hybrid triple quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) combined with an efficient online data acquisition and a multiple data processing method were developed for metabolite identification in vivo (rat plasma, bile, urine and feces) and in vitro (rat liver microsomes and intestinal flora). A total of 51 metabolites in vivo, 60 metabolites in vitro were structurally characterized. The loss of CH, CHO, O, CO, oxidation, methylation, glucuronidation, sulfate conjugation, N-acetylation, hydrogenation, ketone formation, glycine conjugation, glutamine conjugation and glucose conjugation were the main metabolic pathways of eupatorin. This was the first identification of metabolites of eupatorin in vivo and in vitro and it will provide reference and valuable evidence for further development of new pharmaceuticals and pharmacological mechanisms.
瑞香素是芫花（）中的主要生物活性成分，具有很强的抗癌和抗炎活性。然而，目前尚未有关于瑞香素代谢的研究报道。在本研究中，采用超高效液相色谱-串联三重四极杆飞行时间质谱（UHPLC-Q-TOF-MS）结合高效在线数据采集和多种数据处理方法，对瑞香素在体内（大鼠血浆、胆汁、尿液和粪便）和体外（大鼠肝微粒体和肠道菌群）的代谢产物进行了鉴定。共鉴定出 51 种体内代谢产物和 60 种体外代谢产物。其主要代谢途径为 CH、CHO、O、CO 的丢失、氧化、甲基化、葡萄糖醛酸化、硫酸化结合、N-乙酰化、加氢、酮形成、甘氨酸结合、谷氨酰胺结合和葡萄糖结合。这是首次对瑞香素的体内和体外代谢产物进行鉴定，为进一步开发新药和药理机制提供了参考和有价值的证据。
