抄録
1. All menstrual blood samples were capable of high potency caseinolytic and fibrinolytic activity in their euglobulin fraction. All samples lacked fibrinogen and had low inhibitory action on trypsin. A significant amount of plasminogen activator in 1 M potassium thiocyanate extracts was detected on the standard fibrin plate. This fibrinolysis may play a very important role in maintaining fluidity of the menstrum.
2. Blood samples obtained from the peritoneal cavity in cases of ruptured ectopie pregnancy had relatively low proteolytic activity in their euglobulin fraction. All samples lacked fibrinogen and had no potency of inhibitory action on trypsin. It is also suggested that the fluidity mechanism of the intraperitoneal blood is due to fibrinolysis and this fibrinolysis is enhanced by peritoneal plasminogen activator.
