[Characteristics of contact activation of rabbit blood (kallikrein and plasmin systems].

In vitro experiments showed that caoline-induced contact activation of the kallikreine-kinine system and streptokinase-induced activation of plasmin could possibly occur in rabbit blood plasma. Preliminary short-term treatment of plasma with chloroform removed the factor, inhibiting the two mentioned activation processes. The results obtained provided an indirect evidence for the existence of a functional relationship between the kallikreine and plasmin systems of the blood at the level of the initial step of their activation, i.e. the Hageman factor.