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6,7-双乙酰化黄芩素在大鼠体内的代谢产物研究

胡芸, 郭晓宇, 杨琳, 车庆明*
  

  1. 北京大学 药学院 天然药物学系, 北京 100191
  • 收稿日期:2008-04-03 修回日期:2008-11-10 出版日期:2008-12-15 发布日期:2008-12-15
  • 通讯作者: 车庆明

Metabolites of baicalein 6,7-diacetate in rats

Yun Hu, Xiao-Yu Guo, Lin Yang, Qing-Ming Che*
  

  1. Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
  • Received:2008-04-03 Revised:2008-11-10 Online:2008-12-15 Published:2008-12-15
  • Contact: Qing-Ming Che

摘要: 研究6,7-双乙酰化黄芩素在大鼠体内的代谢产物。大鼠灌胃给予6,7-双乙酰化黄芩素后, 采用HPLC-DADLC/MSn方法, 检测大鼠肠内和血浆中的代谢产物。6,7-双乙酰化黄芩素在大鼠肠内降解为6-单乙酰黄芩素和黄芩素; 在大鼠血浆中检测到4种葡萄糖醛酸苷类代谢产物, 初步鉴定为6-O-葡萄糖醛酸黄芩素, 6-O-甲基-7-O-葡萄糖醛酸黄芩素, 6,7-O-双葡萄糖醛酸黄芩素和6-O-葡萄糖-7-O-葡萄糖醛酸黄芩素。首次报道了6,7-双乙酰化黄芩素在大鼠体内的药物代谢, 在肠内和血浆中共鉴定了六个代谢产物。

关键词: 6,7-双乙酰化黄芩素, 6,7-双乙酰化黄芩素, 6,7-双乙酰化黄芩素, 黄芩素, 黄芩素, 黄芩素, 代谢产物, 代谢产物, 代谢产物

Abstract:

To investigate the metabolites of baicalein 6,7-diacetate in rats. HPLC-DAD and LC/MSn methods were used to analyze the metabolites in intestinal tract and plasma after oral administration of baicalein 6,7-diacetate to rats. Baicalein 6,7-diacetate was degraded into baicalein 6-monoacetate and baicalein in rat intestinal tract, and four baicalein glucuronides, baicalein 6-O-glucuronide, baicalein 6-methoxyl-7-O-glucuronide, baicalein 6,7-di-O-glucuronide, and baicalein 6-O-glucose-7-O-glucuronide were detected and tentatively identified in rat plasma. This is the first time to report the metabolites of baicalein 6,7-diacetate in rats. Six metabolites were identified in rat intestinal tract and plasma.

Key words: Baicalein 6,7-diacetate, Baicalein 6,7-diacetate, Baicalein, Baicalein, Metabolites, Metabolites, ,

Supporting: *Corresponding author. Tel./fax: 86-10-82802468