The unmodified plasminogen streptokinase activator composite (PSAC) prepared with the same method was cleared rapidly with an apparent half life of about 12 min in rabbit, but APSAC was removed more slowly ( t 1/2 8.8 h).

• 用同方法制备的未经修饰的纤溶酶原 -链激酶复合物 ( PSAC)在兔血浆内半衰期仅为 1 2 min.