大鼠iv四环素30 min后,按荧光强度将梗塞心脏(缺血60 min—再灌23 h)分为无荧光区(梗塞区),强荧光区(灌流区)和弱荧光区(非梗塞区)。电镜及SOD测定证实区分合理,与Evans蓝—红四氮唑染色配对比较,结果一致。普萘洛尔能显著缩小无荧光区及增加强荧光区的重量。 After iv iv tetracycline treatment for 30 min, the infarcted hearts (ischemic 60 min - reperfusion 23 h) were divided into three groups according to the fluorescence intensity: the non-fluorescent area (infarct area), the strong fluorescent area (perfusion area) and the weak fluorescence area ). Electron microscopy and SOD determination proved reasonable distinction, and Evans blue - red tetrazolium paired comparison, the results are consistent. Propranolol significantly reduced the non-fluorescent area and increased the weight of the strong fluorescent area.