天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (10): 1706-1711.doi: 10.16333/j.1001-6880.2017.10.013

• 研究简报 • 上一篇    下一篇

小花棘豆和苦马豆不同萃取相乙酰胆碱酯酶活性及机理探讨

王志雁1,沈红玲1,孟庆艳2,张航航1,贾旭1,刘文杰1,2*   

  1. 1塔里木大学生命科学学院;2新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆阿拉尔 843300
  • 出版日期:2017-10-27 发布日期:2017-10-27
  • 基金资助:

    国家自然科学基金(21365018);新疆生产建设兵团科技攻关项目(2011AB030);新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室开放课题(BRYR1404)

Acetylcholinesterase Activity and Mechanisms of Different Extracts from Oxytropis glabra DC.and Swainsonia salsula (Pall.) DC.

WANG Zhi-yan1, SHEN Hong-ling1, MENG Qing-yan2, ZHANG Hang-hang1, JIA Xu1, LIU Wen-jie1,2*   

  1. 1College life of science, Tarim University; 2Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production and Construction Groups, Xinjiang Alar 843300, China
  • Online:2017-10-27 Published:2017-10-27

摘要: 本文研究了小花棘豆及苦马豆对乙酰胆碱酯酶(AChE)的抑制活性及抑制动力学,为进一步开展植物中乙酰胆碱酯酶抑制剂奠定了基础。采用超声辅助溶剂提取、有机溶剂梯度萃取等方法得到各相提取物,运用改良的Ellman比色法对小花棘豆和苦马豆进行了AChE抑制活性和动力学研究。结果表明,小花棘豆根、叶以及苦马豆叶的氯仿相萃取物具有较高的AChE抑制活性,其IC50值分别为0.67、1.69 mg/mL和0.17 mg/mL,而其他萃取相表现出较弱的AChE抑制活性。此外,小花棘豆和苦马豆叶氯仿相的抑制类型均为可逆的混合型抑制。

关键词: 萃取物, 乙酰胆碱酯酶, 抑制机理, 动力学

Abstract: In order to evaluate the activity and potential application of acetylcholinesterase inhibitors from Oxytropis glabra DC.and Swainsonia salsula (Pall.) DC.,the inhibition mechanism and kinetics were investigated in this study.Each extract was prepared using different polarity solvents associated with ultrasonic assisted extraction.In addition,improved Ellmans' colorimetric method was employed to exploit the acetylcholinesterase inhibition activity and kinetics.Results showed that the chloroform extracts of both root and leaf of  O.glabra and the leaf of S.salsula demonstrated higher AChE inhibitory activities over other extracts  with the IC50 values of 0.67 mg/mL,1.69 mg/mL and 0.17 mg/mL,respectively.The inhibition mechanism of chloroform extracts from leaf of these two plants are both mixed type reversible inhibition.

Key words: extract, acetylcholinesterase, inhibition mechanism, kinetics

中图分类号: 

Q553