天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (8): 1357-1361.doi: 10.16333/j.1001-6880.2015.08.007

• 研究论文 • 上一篇    下一篇

离体培养人肠道菌群对九节龙皂苷I生物转化的研究

曹伟宇,王鹏远,冯斌,王晓娟*   

  1. 军事口腔医学国家重点实验室 第四军医大学口腔医院药剂科,西安 710032
  • 出版日期:2015-08-29 发布日期:2015-09-01

Biological Transformation of Ardipusilloside I by Human Intestinal Bacteria in vitro

CAO Wei-yu,WANG Peng-yuan,FENG Bin,WANG Xiao-juan*   

  1. State Key Lab.of Military Stomatology,Department.of Pharmacy,School of Stomatology, The Fourth Military Medical University,Xi’an 710032,China
  • Online:2015-08-29 Published:2015-09-01

摘要: 采用健康人新鲜粪便提取液与九节龙皂苷I(ADS I)在厌氧条件、37 ℃下培养72 h,通过液液萃取、旋转蒸发、复溶等方法对样品进行预处理,应用高效液相色谱-蒸发光散射检测法(HPLC-ELSD)和超高效液相色谱电喷雾串联质谱检测法(UHPLC-ESI-MS/MS)推断ADS I的生物转化产物结构。结果发现ADS I在人肠道菌作用下主要发生脱糖基反应,初步确定其结构分别为3个次生苷(M1、M2、M3)和1个苷元(M4)。本研究首次利用离体培养人肠道菌群法对ADS I进行生物转化研究,为ADS I在人肠道内转化吸收提供了科学依据。

关键词: 九节龙皂苷I, 人肠道菌, 代谢产物, UHPLC-MS

Abstract: Ardipusilloside I (ADS I) and the fresh fecal extract of healthy people were incubated under anaerobic conditions at 37 ℃ for 72 h,and the incubating solution was pretreated by liquidliquid extraction,rotary evaporation and redissolving method sequentially.High performance liquid chromatography-evaporative light scattering detector method (HPLC-ELSD) and ultra-high performance liquid chromatography-electrospray ion-tandem mass spectrometry method (UHPLC-ESI-MS/MS) were used to deduce the chemical structures of ADS I biotransformation products.It was found that deglycosylation reactions occured when ADS I was incubated with human intestinal bacteria.The chemical structures of ADS I biotransformation products was initially deduced,including three secondary glucosides (M1,M2,M3) and one aglycone (M4).The biotransformation of natural product ADS I in human intestinal bacteria in vitro was studied for the first time.It provided the possible scientific evidence for ADS I biotransformation and absorption in human intestinal.

Key words: Ardipusilloside I, human intestinal bacteria, metabolites, UHPLC-MS

中图分类号: 

R917