为了探讨活性氧自由基在心肌缺血再灌注损伤中的影响,我们用光照虎红酸钠(RB)产生活性氧,观察了活性氧对豚鼠乳突肌收缩的影响与损伤,以及淬灭剂组氨酸和丹参的作用。实验表明:单纯光照和单纯RB,乳头肌收缩幅度、静息张力和收缩力均无显著改变。我们在48条心室乳 In order to investigate the effect of ROS on myocardial ischemia-reperfusion injury, we used ROS (RB) to generate reactive oxygen species (ROS) and observed the effect and damage of reactive oxygen species (ROS) on guinea pig papillary muscle contraction, Histidine and Salvia role. Experiments show that: simple light and simple RB, papillary muscle contraction amplitude, resting tension and contractility no significant change. We are in 48 heart chamber milk