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• 研究论文 • 上一篇    

丹参水溶性成分抗氧自由基和脂质过氧化作用

李定友, 徐理纳*, 刘小光   

  1. 中国医学科学院药物研究所药理室, 北京 100050
  • 收稿日期:1994-06-30 修回日期:1994-10-17 出版日期:1995-06-15 发布日期:1995-06-15
  • 通讯作者: 徐理纳*

Effects of Water-soluble Components Isolated from Salvia milltiorrhiza on Oxygen Free Radical Generation and Lipid Peroxidation

Ding-You Li, Li-Na Xu*, Xiao-Guang Liu   

  1. Department of Pharmacology, Institute of Materia, Chinese Academy of Medical Sciences, Beijing 100050
  • Received:1994-06-30 Revised:1994-10-17 Online:1995-06-15 Published:1995-06-15
  • Contact: Li-Na Xu*

摘要: 本实验显示, 丹参的6种水溶性成分在10 μmol/L能不同程度地抑制黄嘌呤氧化酶系统产生超氧阴离子(O2-)。丹参7种水溶成分(100 μmol/L)显著阻止过氧化氢(H2O2)所致的小鼠红细胞溶血和丙二醛(MDA)形成, 其中SalA, SalB, SalCRosA的活性较强, 1~100 μmol显示良好的量效关系。在离体大鼠心脏, SalA 20 μmol/L能显著降低缺氧45 min后再给氧30 min时心肌MDA含量。结果表明, 丹参中除丹参素和原儿茶醛外, 还有其它活性更强的抗氧化成分。SalA对心肌缺血/再给氧损伤的保护作用可能与其氧自由基清除活性有关。

关键词: 丹参, 丹酚酸A, 心肌缺血/再灌注, 原儿茶醛, 自由基, 过氧化脂质

Abstract: The effects of water-soluble components isolated from Salvia miltiorrhiza on oxygen free radical prodction and lipid peroxidation were estimated. Five components (10 μmol/L)were shown to inhibit superoxide anion generation by xanthine-xanthine oxidase system. It was also demonstrated that six components (100 μmol/L) prevented H2O2-induced hemolysis and MDA fonnation in mouse erythrocytes.The effects of Sal A, Sal B, Sal C and Ros A were dose dependent. In Langendorff rat heart, pretreatment with Sal A 20 μmol/L significantly prevented MDA production induced by 30 min reoxygenation after 45 min anoxia.The results indicated that there were also other potent antioxidant componentts in Salvia milliorrhiza besides Dphl and Pal. The protection of Sal A against myocardial anoxiareoxygenation inury may be mainly ascribed to its oxygen free radical scavenging activity.

Key words: Salvia miltiorrhiza, Salvianolic acid A, Myocardial anoxiareoxygenation, Free radicals, Lipid peroxide

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