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冠状静脉窦逆行灌注VEGF对心肌梗死兔心功能及心肌梗死面积的影响 被引量:4

Effects of cardiac function and infracted size of VEGF retrograde perfusion through coronary sinus in rabbit myocardial infarction model
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摘要 目的:观察经冠状静脉窦逆行灌注血管内皮生长因子(VEGF)对兔心肌梗死模型心功能及心肌梗死面积的影响。方法:20只新西兰大白兔随机分为实验组(VEGF组)和对照组,两组动物常规全麻,气管插管,胸骨正中切开,暴露心脏,结扎左室支建立心肌梗死模型,冠状静脉窦插管,实验组逆行灌注VEGF蛋白,对照组以生理盐水对照,10min后重复灌注1次。分别于术前、结扎左室支后30min、灌注后30min、1h、2h测肌酸磷酸激酶(CK)、肌酸磷酸激酶同工酶(CK-MB)、肌钙蛋白(TnT)、血管内皮生长因子(VEGF)、一氧化氮(NO)、内皮素(ET)及心功能,全程记录心电及压力监测,实验结束后检测心肌梗死面积。结果:结扎左室支即刻所有动物出现ST段抬高并与T波融合,结扎左室支30min所有动物CK、CK-MB、TnT均显著升高,实验组于灌注VEGF后1h、2hCK、CK-MB、TnT、ET及左室舒张末压明显低于对照组(P<0.05),灌注VEGF后30min、1h、2hVEGF、NO、左室收缩压(LVSP)、左室内压上升速率及左室内压下降速率(+dp/dtmax,-dp/dtmax)均明显高于对照组(P<0.05或P<0.01);实验组心肌梗死面积明显小于对照组(P<0.05)。结论:经冠状静脉窦逆行灌注VEGF蛋白可通过改善内皮功能,减少心肌梗死面积,改善左室功能。
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2009年第3期597-600,共4页 Chinese Journal of Pathophysiology
基金 贵州省重点攻关资助项目(No.科技厅:黔科合计[2004]3065) 贵州省省长资金资助项目(No.黔省专合字[2005]33号)
关键词 冠状静脉窦逆行灌注 血管内皮生长因子 心肌梗死 Coronary sinus retrograde perfusion Vascular endothelial growth factors Rabbits Myocardial infarction
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参考文献9

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