[Effect of chromatographic fractions of blood ultrafiltrates of patients with chronic uremia on the fibrinolytic activity]].

Ultrafiltrates obtained from the patients with chronic uremia were chromatographically separated in the column filled with Sephadex A25. "Middle" molecular weight substances were localized mainly in a single peak. Dialysis decreased their contents. Determination of the fibrinolytic activity of each chromatographic fractions with caseinolytic and fibrinplate techniques has shown activating effect of the fractions 10-12. Dialysis decreased fibrinolytic activity statistically significantly.