心力衰竭心肌凋亡基因蛋白研究

Expression of bcl-2 and Bax protein in the failing human heart —an inhibitor or accelerator of apoptosis?

心肌梗死致心力衰竭猝死者 ,心肌细胞存在凋亡现象。基因蛋白bcl-2和Bax对心肌凋亡具有调控作用。急性肌梗死灶周围有bcl-2 表达 。

In general, myocyte death in myocardial infarctions (MI) is attributed to necrosis, but recently the involvement of apoptosis has been suggested. Loss of myocytes is an important mechanism in the development of cardiac failure of either ischemic or nonischemic origin. The expression of two proto-oncogenes influence apoptosis. Myocytes with positive bcl-2 immunoreactivity were seen in the heart of acute MI, localized only in the salvaged areas surrounding the infarcted tissues. Myocytes with overexpressed positive Bax immunoreactivity were observed in the salvaged areas of old MI.