Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction.

Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction.
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DOI:
10.3791/64387
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发表时间:
2022-08-09
期刊:
Journal of visualized experiments : JoVE
影响因子:
--
通讯作者:
Dutta P
Dutta P
中科院分区:
其他
文献类型:
--
作者:
Johny E;Dutta P

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缺血性心脏病和随后的心肌梗死(MI)是美国和世界各地死亡率的主要原因之一。为了探索心肌梗死后的病理生理变化和设计未来的治疗方案,需要研究MI模型。永久性结扎小鼠左冠状动脉(LCA)是研究MI后心功能和心室重构的常用模型。在这里,我们描述了一个微创,可靠,可重复的手术小鼠心肌梗死模型永久结扎的LCA。我们的手术模式包括一个容易可逆的全身麻醉,气管插管,不需要气管切开术,开胸。应进行心电图和肌钙蛋白测量以确保MI。MI后第28天的超声心动图将辨别心脏功能和心力衰竭参数。心肌纤维化的程度可通过Masson三色染色和心脏MRI进行评价。该模型可用于研究心肌梗死后的病理生理和免疫学变化。
Ischemic heart disease and subsequent myocardial infarction (MI) is one of the leading causes of mortality in the United States and around the world. In order to explore the pathophysiological changes after myocardial infarction and design future treatments, research models of MI are required. Permanent ligation of the left coronary artery (LCA) in mice is a popular model to investigate cardiac function and ventricular remodeling post MI. Here we describe a less invasive, reliable, and reproducible surgical murine MI model by permanent ligation of the LCA. Our surgical model comprises of an easily reversible general anesthesia, endotracheal intubation that does not require a tracheotomy, and a thoracotomy. Electrocardiography and troponin measurement should be performed to ensure MI. Echocardiography at day 28 after MI will discern heart function and heart failure parameters. The degree of cardiac fibrosis can be evaluated by Masson’s trichrome staining and cardiac MRI. This MI model is useful for studying the pathophysiological and immunological alterations after MI.
DOI: 10.2147/jir.s326716
发表时间: 2021
影响因子: 4.5
作者:
Johny E;Bhaskar P;Alam MJ;Kuladhipati I;Das R;Adela R
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期刊: Journal of visualized experiments : JoVE
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影响因子: 17.1
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通讯作者: Dutta P