Methods Cultured myocardial cells of neonatal SD rats have been randomly divided into 4 groups: Control group; anoxia reoxygenation(A/R)group; anoxia preconditioning group(APC);

• 方法实验用SD新生(1~3 d)大鼠,雌雄不拘,无菌取出乳鼠心脏,经分离附着组织、胰蛋白酶消化及纯化制成心肌细胞培养,第4天随机分为4组:正常对照(Control)组、缺氧/复氧(A/R)组、缺氧预处理(APC)组、川芎嗪(TMPZ)组。