癌变·畸变·突变 ›› 2017, Vol. 29 ›› Issue (6): 450-453.doi: 10.3969/j.issn.1004-616x.2017.06.009

• 论著 • 上一篇    下一篇

大鼠肝微粒体代谢对何首乌水提物肝细胞毒性的影响

吴双, 李登科, 李凯明, 周明, 孙震晓   

  1. 北京中医药大学, 北京 100102
  • 收稿日期:2017-05-30 修回日期:2017-08-25 出版日期:2017-11-30 发布日期:2017-11-30
  • 通讯作者: 孙震晓,E-mail:sunzxcn@hotmail.com E-mail:sunzxcn@hotmail.com
  • 作者简介:吴双,E-mail:275002985@qq.com。
  • 基金资助:
    国家自然科学基金项目(81473418);北京中医药大学研究生自主课题(2017-JYB-XS-145)

Hepatotoxicity of aqueous extract of Polygoni Multiflori Radix with or without the rat liver microsome incubation

WU Shuang, LI Dengke, LI Kaiming, ZHOU Ming, SUN Zhenxiao   

  1. Beijing University of Chinese Medicine, Beijing 100102, China
  • Received:2017-05-30 Revised:2017-08-25 Online:2017-11-30 Published:2017-11-30

摘要: 目的:研究大鼠肝微粒体代谢对何首乌水提物肝细胞毒性的影响。方法:利用大鼠肝微粒体对何首乌水提物进行体外代谢;将经代谢前后的何首乌水提物溶液冷冻干燥,以不同浓度(相当于生药1.5、3、6、12 mg/mL)分别作用肝L02及HepG2细胞24 h及48 h,MTT法检测其对两种细胞活力的影响;HPLC测定何首乌水提物溶液中3种主要成分(二苯乙烯苷、大黄素-8-O-β-D-葡萄糖苷、大黄素)的含量变化。结果:何首乌水提物代谢后,随着其剂量的增加,对细胞活力的抑制作用逐渐增强,与何首乌水提物未代谢组相比,浓度为12 mg/mL的何首乌水提物代谢组毒性明显降低(P < 0.01)。HPLC测定结果显示,何首乌水提物代谢组上述3种主要成分含量均有所降低。结论:何首乌水提物经大鼠肝微粒体代谢后对肝细胞毒性降低,与其主要成分含量降低之间的关系需要进一步研究。

关键词: 何首乌, 水提物, 肝微粒体, 肝细胞毒性, 代谢

Abstract: OBJECTIVE:To study the hepatotoxicity of aqueous extract of Polygoni Multiflori Radix with or without incubation with the rat liver microsome. METHODS:Aqueous extract of Polygoni Multiflori Radix was incubated with or without rat liver microsome in vitro and then dried by freeze drying. Liver L02 and HepG2 cells were incubated with different concentrations of the freeze-dried extract(1.5,3,6,12 mg/mL) for 24 h,48 h. Cell vitability was assayed by MTT method. In addition,contents of three main components (trans-2,3,5,4'-tetrahydroxystibene-2-O-β-D-glucopyranoside,emodin-8-O-β-glucopy-ranoside,emodin) from aqueous extract of Polygoni Multiflori Radix after incubation were quantitated by HPLC analysis. RESULTS:The aqueous extract without incubation with rat liver microsome showed more toxicity at the concentration of 12 mg/mL than that with incubation (P < 0.01). Contents of the three main components of aqueous extract incubated with rat liver microsome were lower than those without rat liver microsome. CONCLUSION:Hepatotoxicity of aqueous extract of Polygoni Multiflori Radix was decreased after their metabolism by rat liver microsome. The relationship between reduced contents of the main components of the aqueous extract and the reduction of hepatotoxicity need further study for clarification.

Key words: Polygoni Multiflori Radix, aqueous extract, liver microsome, hepatotoxicity, metabolism

中图分类号: