纤维蛋白溶解是机体清除循环系统中小的血凝块的过程。羧肽酶U(CPU)是纤维蛋白溶解的内源性抑制剂之一。因此有效的CPU抑制剂可促进纤维蛋白溶解。作者以偶联酶(CPU-马尿酸酶)试验检测为导向,从辐射叶鸡骨常山Alstonia actinophylla叶中分离鉴定了1新的具CPU抑制活性的吲哚生物 Fibrinolysis is the process by which the body clears small blood clots in the circulatory system. Carboxypeptidase U (CPU) is one of the endogenous inhibitors of fibrinolysis. Therefore effective CPU inhibitors can promote fibrinolysis. The authors identified and identified a new class of cancer-inhibiting organisms from the leaves of Alstonia actinophylla, a radiative leaf chicken, using the Caspase (CPU-Hypase) test.