东菱精纯克栓酶(DF521)是一种蛋白酶,能选择性地降低血中的纤维蛋白原,溶解血栓,还能抑制红血球凝集,降低血粘度,对ADP诱导的血小板聚集反应有显著的抑制作用,因而脑循环动力学测定(CVA)参数中梗塞侧血流速度、血流量明显增加,尤其最小血流速度,最小血流量比较敏感。近年来在日本和国内用DF521治疗急性缺血性中风取 DF-521 is a protease that selectively reduces fibrinogen in blood, dissolves thrombus, inhibits erythrocyte aggregation and reduces blood viscosity, and has significant effects on ADP-induced platelet aggregation Inhibition, and cerebral circulation kinetic determination (CVA) parameters in the infarct side blood flow velocity, blood flow increased significantly, especially the minimum blood flow velocity, the minimum blood flow is more sensitive. In recent years in Japan and China with DF521 treatment of acute ischemic stroke