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PROTEOMIC ANALYSIS OF RAT MYOCARDIAL INFARCTION MODEL

机译:大鼠心肌梗塞模型的蛋白质组学分析

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To identify the changes of cardiac protein expression during myocardial infarction occur, the animal model of myocardial infarction was established by surgical ligation of the left coronary artery in rats. Protein profiles of normal and infarcted tissues were investigated by 2DE: over 850 60 protein spots were detected in the silver-stained gels. The results showed that the expressions of 19 protein spots were increased and 13 protein spots were decreased in the diseased tissues when compared with normal tissues (n=5). 16 altered protein spots were subjected to mass spectrometry analysis, and 11 proteins were subsequently identified with peptide mass fingerprinting (PMF) based on matrix-associated laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) and database searching. These identified proteins were Hsp27 (2 isoforms),
机译:为了确定心肌梗塞发生时心脏蛋白表达的变化,通过手术结扎大鼠左冠状动脉建立了心肌梗塞的动物模型。通过2DE对正常和梗塞组织的蛋白质谱进行了研究:在银染的凝胶中检测到850 60个蛋白点。结果表明,与正常组织相比,患病组织中19个蛋白斑点的表达增加,而13个蛋白斑点的表达减少(n = 5)。对16个改变的蛋白质斑点进行质谱分析,随后基于基质相关的激光解吸电离飞行时间质谱(MALDI-TOF-MS)和数据库搜索,通过肽质谱指纹分析(PMF)鉴定了11种蛋白质。这些鉴定出的蛋白质是Hsp27(2个亚型),

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