基于超高效液相色譜-質(zhì)譜聯(lián)用技術(shù)的人參皂苷體外Ⅰ相代謝研究
[Abstract]:Oral drugs must go through the process of gastrointestinal absorption and metabolism in order to enter the body to play a therapeutic effect, but the complexity of drug metabolism in vivo makes it relatively difficult to study. Therefore, it is a simple and necessary experimental method to establish drug metabolism model in vitro to study its metabolites and metabolic laws. In this study, ginsenoside extracts were cultured in vitro by anaerobic culture of isolated intestinal bacteria, and the metabolites of intestinal bacteria were detected and analyzed by ultra-high performance liquid chromatography-mass spectrometry (UPLC/MS). By comparing the chemical fingerprinting before and after metabolism, a total of 25 triol type ginsenoside metabolites and 1 oleanolic acid type intestinal bacteria metabolites were detected in vitro. These metabolites were mainly produced by deglycosylation. It also includes partial redox reactions. The main metabolites of ginsenoside in intestinal bacteria (including Rh _ 1 Rh _ 2H _ 2Compound KF _ 1) were further studied on the metabolism of hepatocyte cytochrome P450 enzyme (CYP450) in vitro. All the metabolites of redox reaction were detected. The results showed that ginsenosides mainly produced deglycosylation products under the action of intestinal flora, while hydroxylation and other redox products were mainly produced under the action of CYP450. The results can provide an important reference for the study of ginsenosides metabolism in vivo.
【作者單位】: 中國科學(xué)院長春應(yīng)用化學(xué)研究所;中國科學(xué)技術(shù)大學(xué);
【基金】:國家自然科學(xué)基金重點項目(81530094);國家自然科學(xué)基金面上項目(81573574、81473537)資助
【分類號】:O657.63;R965
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