首页> 外文会议>Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE >The Mitochondrial Calcium Uniporter participates in Ischemia/Reperfusion Injury and in Cardioprotection by Ischemic Preconditioning
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The Mitochondrial Calcium Uniporter participates in Ischemia/Reperfusion Injury and in Cardioprotection by Ischemic Preconditioning

机译:线粒体钙单向转运蛋白参与缺血/预适应的缺血/再灌注损伤和心脏保护作用

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The objective of the present study was to determine whether the mitochondrial calcium uniporter plays a role in cardioprotection by ischemic preconditioning (IPC). Isolated rat hearts were subjected to 30 min regional ischemia by ligation of the left anterior descending artery followed by 120 min reperfusion. We found that both IPC and inhibition of the mitochondrial calcium uniporter during reperfusion improved recovery of left ventricular developed pressure, maximal rise velocity and end-diastolic pressure, and reduced infarct size and lactate dehydrogenase release. These protective effects were attenuated by activating the mitochondrial calcium uniporter. We conclude that the mitochondrial calcium uniporter is involved in the cardioprotection of ischemic preconditioning.
机译:本研究的目的是确定线粒体钙单向转运蛋白是否在缺血预处理(IPC)的心脏保护中发挥作用。结扎左前降支动脉,对离体大鼠心脏进行30分钟局部缺血,然后再灌注120分钟。我们发现IPC和再灌注期间线粒体钙单向转运蛋白的抑制均改善了左心室发育压力,最大上升速度和舒张末期压力的恢复,并减少了梗塞面积和乳酸脱氢酶的释放。通过激活线粒体钙单向转运蛋白减弱了这些保护作用。我们得出结论,线粒体钙单向转运蛋白参与缺血预处理的心脏保护作用。

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