波谱学杂志 ›› 1998, Vol. 15 ›› Issue (2): 139-144.

• 研究论文 • 上一篇    下一篇

抗氧化剂抗脂质过氧化机制的ESR研究

高姝娟1,2,3, 刘东波2, 罗贵民1,2,3, 杨同书1,2,3, 沈家骢3, 赵光程4   

  1. 1 吉林大学酶工程实验室, 长春 130023;
    2 东北师范大学生命科学学院, 长春 130024;
    3 吉林大学超分子结构与光谱实验室, 长春 130023;
    4 白求恩医科大学第一临床学院, 长春 130021
  • 收稿日期:1997-09-01 修回日期:1997-10-16 出版日期:1998-04-05 发布日期:2018-01-13
  • 作者简介:高姝娟,女,28岁,硕士
  • 基金资助:
    吉林大学酶工程实验室开放课题资助项目

ESR STUDY ON THE MECHANISM OF AN TI-LIPID PEROXIDATIONOF AN TIOXIDANTS

Gao Shujuan1,2,3, Liu Dongbo2, Luo Guimin1,2,3, Yang Tongshu1,2,3, Shen Jiacong3, Zhao Guangcheng4   

  1. 1 Key Lab of Enzyme Engineering, Jilin University, Changchun, 130023;
    2 Northeast Normal University, Changchun, 130024;
    3 Key Lab of Supernolecular Structure and Spectrum, Jilin University, Changchun, 130023;
    4 The First Teaching Hospital of Norman Bethune University of Medical Science, Changchun, 130021
  • Received:1997-09-01 Revised:1997-10-16 Online:1998-04-05 Published:2018-01-13

摘要: 以NADH诱导的心肌线粒体损伤体系为模型,在体外用ESR研究了谷胱甘肽(GSH)、超氧化物歧化酶(SOD)及辣根过氧化物酶(HRP)的抗氧化机制.结果表明,低浓度的GSH可部分抑制体系中自由基的生成;SOD与HRP以适当比例共同作用,可完全抑制体系中自由基的生成,较好地防止脂质过氧化的发生.

关键词: ESR, 自旋捕捉, 抗氧化剂, 线粒体

Abstract: Experiments were carried out using ESR spectra with 5, 5-dimethy l-1-pyrroline-Noxide (DMPO) as spin trap to study the antioxidant mechanism of glutathione (GSH), superoxide dismutase (SOD) and horseradish peroxidase (HRP). NADH-induced lipid peroxidation system was taken as an in vitro model. The results indicated that GSH could partly inhibit the generation of free radicals at low concentration, while SOD and HRP at proper ration could completely scavenge free radicals, thus prevent mitochondria lipid peroxidation from the damage of lipid peroxidation.

Key words: ESR, Spin trapping, Antioxidant, Mitochondria