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缺血预处理对缺血/再灌注离体心脏的保护作用
作者姓名:Cao X  Gu XQ  Yang SJ  Zhang HQ
作者单位:1. 吉林大学药学院药理教研室,吉林,长春,130021
2. 吉林大学第三临床医院,吉林,长春,130021
3. 吉林大学物理学院,吉林,长春,130021
摘    要:目的:探讨连续多次短暂缺血预处理对缺血/再灌注损伤心肌的保护作用及机制。方法:采用大鼠离体心脏Lan-gendorff灌流模型,观察缺血预处理对心肌缺血/再灌注后不同时间点冠脉流出液中AST、CPK、UDH及冠脉流量,心肌组织中SOD、LPO以及再灌注性心律失常的影响。结果:缺血预处理可以减少缺血/再灌注损伤的心肌冠脉流出液中AST、CPK、LDH的含量,提高心肌SOD活性,降低LPO水平,并且抑制再灌注性心律失常的发生,提高再灌注期间的冠脉流量。结论:缺血预处理对心肌缺血/再灌注损伤具有一定保护作用。

关 键 词:缺血预处理  缺血/再灌注损伤  心肌  SOD活性  冠脉流出液  再灌注性心律失常  冠脉流量
文章编号:1000-6834(2003)02-0114-03
修稿时间:2002年5月15日

The protective effects of IPC on isolated myocardial ischemia/reperfusion injury in rats
Cao X,Gu XQ,Yang SJ,Zhang HQ.The protective effects of IPC on isolated myocardial ischemia/reperfusion injury in rats[J].Chinese Journal of Applied Physiology,2003,19(2):114-116.
Authors:Cao Xia  Gu Xin-quan  Yang Shi-jie  Zhang Hui-qing
Institution:Department of Phanmaology, Jilin University, Jilin Changchun 130021, China.
Abstract:Aim: To investigate the protective effects and mechanism of IPC on myocardial ischemia/reperfusion injury. Methods: Effects of IPC on arrhythmia and coronary blood flow and the release of AST, CPK, LDH, SOD and LPO at different time after ischemia/reperfusion injury in rat Langendorff hearts were studied. Results: IPC decreased the release of AST, CPK and LDH and increased myocardial SOD activity and decreased LPO level. IPC also inhibited ischemia/reperfusion arrhythmias and increased coronary blood flow. Conclusion: The results showed that IPC had well protective effects on myocardial ischemia/reperfusion injury.
Keywords:IPC  isolated heart  myocardial ischemia/reperfusion injury
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