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Garlicin attenuates reperfusion no-reflow in a catheter-based porcine model of acute myocardial infarction

机译:大蒜素可减轻急性心肌梗死基于导管的猪模型中的再灌注无复流

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Objective: To evaluate whether garlicin can attenuate reperfusion no-reflow in a catheter-based porcine model of acute myocardial infarction (AMI). Methods: Twenty-two swine were used: six in a sham-operation group, and eight each in the control and garlicin groups. The distal part of the left anterior descending coronary artery (LAD) in the latter two groups was occluded by a dilated balloon for 2 hr, then reperfused for 3 hr. Garlicin (1.88mg/kg) was injected just before reperfusion until reperfusion for 1 hr in the garlicin group. Hemodynamic data were examined before AMI, 2 hr after occlusion, and 3 hr after reperfusion. Myocardial contrast echocardiography (MCE) and pathological staining were performed to evaluate the myocardial no-reflow area (NRA). Serum proinflammatory cytokines and endothelin (ET)-1 were examined by radioimmunoassay. Results: Left ventricular systolic pressure (LVSP) and left ventricular end-diastolic pressure (LVEDP) significantly improved in the garlicin group after reperfusion compared with the control group and also 2hr after AMI (p0.05 for both). MCE and pathological staining both showed garlicin attenuated reperfusion NRA after AMI (p0.05, p0.01). Garlicin not only decreased serum interleukin (IL)-6 and tumor necrosis factor (TNF)-α after reperfusion (p0.05 for both), but also ET-1 level (p0.01). Conclusion: Garlicin attenuated reperfusion no-reflow in our catheter-based porcrine model of AMI, possibly through decreasing serum proinflammatory cytokines and ET-1.
机译:目的:评估大蒜素是否能减轻基于导管的急性心肌梗死(AMI)猪模型中的再灌注无复流。方法:使用22头猪:假手术组6只,对照组和大蒜素组各8只。在后两组中,左前降支冠状动脉(LAD)的远端被扩张的球囊阻塞2小时,然后再灌注3小时。再灌注前注射大蒜素(1.88mg / kg),直到再灌注1小时为止。在AMI之前,闭塞后2小时和再灌注后3小时检查血流动力学数据。进行心肌对比超声心动图(MCE)和病理染色以评估心肌无回流区域(NRA)。通过放射免疫法检查血清促炎细胞因子和内皮素(ET)-1。结果:与对照组相比,大蒜素组在再灌注后以及AMI后2小时,左心室收缩压(LVSP)和左心室舒张末期压力(LVEDP)均显着改善(p <0.05)。 MCE和病理染色均显示AMI后大蒜素减弱了再灌注NRA(p <0.05,p <0.01)。大蒜素不仅降低了再灌注后的血清白介素(IL)-6和肿瘤坏死因子(TNF)-α(两者均p <0.05),而且降低了ET-1水平(p <0.01)。结论:大蒜素可通过减少血清促炎细胞因子和ET-1来减轻我们基于导管的AMI大鼠模型的再灌注无复流。

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