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da shu xin ji geng si hou fei geng si qu yu xin shi zhong gou de yan jiu
Author(s): 
Pages: 1505-1507
Year: Issue:  9
Journal: THE JOURNAL OF PRACTICAL MEDICINE

Keyword:  心肌梗塞心室重构细胞凋亡增殖心肌肥大;
Abstract: 目的:通过观察大鼠心肌梗死后非梗死区域心肌细胞凋亡、增殖分化和心肌肥大改变情况,探讨其在梗死后心肌重塑中的地位与可能的生物学意义.方法:结扎大鼠左冠状动脉制备心肌梗死模型,观察大鼠心肌梗死后心肌组织病理形态:免疫组织化学方法检测原位细胞凋亡(TUNEL)、增殖细胞核抗原(PCNA)、转化生长因子-β1(TGF-β1)表达量.结果:大鼠心肌梗死后,TUNEL、PCNA、TGF-β1 阳性率与对照组比较分别为(0.414±0.05)%vs(0.223±0.04)%,(0.419±0.04)%vs(0.188±0.03)%,(7.2±1.4)%vs(2.2±0.8%).结论:心肌梗死后非梗死区域凋亡、增殖和心肌肥大较对照组明显增加,三者共同参与了心肌梗死后非梗死区域的心室重构.
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