[Clinical evaluation of kininogenesis indices].

The discrepancies between kininogenase, BAEE-esterase and BAPNA-amidase activity in plasma kallikrein were shown in experiments in vitro. The same discrepancies were detected during examination of children aged under 3 years suffering from bronchopulmonary diseases (acute and lingering pneumonia, bronchial asthma). In these children, prekallikrein, kallikrein and kallikrein inhibitor were determined at a time by the 3 methods (esterase, test-tube chromatographic and kininogenase ones). It has been shown that the kininogenesis intensity could be assessed objectively only in the measurement of the kininogenase activity of kallikrein contained by the whole plasma or its fractions. The esterase technique characterizes total factors of contact activation and does not reflect the activity of kallikrein, prekallikrein and kallikrein inhibitor. The test-tube chromatographic method might be regarded as objective only in the measurement of the kininogenase activity of the fractions that contain kallikrein or prekallikrein.