论文部分内容阅读
０引言成熟与未成熟心肌细胞在结构、功能和能量代谢上均存在着差异；因此，心肌缺血再灌注损伤的机制和保护措施也有各自的特点．增殖细胞核抗原（ＰＣＮＡ）是一种晚期生长相关基因，其主要表达在细胞循环Ｇ１－Ｓ期的增殖细胞中，是真核细胞ＤＮＡ合成所必须的一种核蛋...
0 Introduction Mature and immature cardiomyocytes differ in their structure, function and energy metabolism; therefore, the mechanisms and protective measures of myocardial ischemia-reperfusion injury also have their own characteristics. Proliferating cell nuclear antigen (PCNA) is a late-growth-related gene that is mainly expressed in proliferating cells in the cell cycle G1-S phase and is required for DNA synthesis in eukaryotic cells.