[Fibrinolytic activity of the urine in patients with diabetic glomerulosclerosis]

The summary fibrinolytic activity of the urine (SFAU) was studied in 39 patients with diabetic glomerulosclerosis (DGS), 12 patients with diabetes mellitus (DM) without renal involvement, 8 patients with reduced glucose tolerance and 20 healthy subjects. The level of plasmin, plasminogen activators, plasminogen activation inhibitors and antiplasmins in the concentrated urine were also determined. Diabetic patients without clinical manifestations of DGS revealed a significant reduction of SFAU, plasmin activity and plasminogen activators. A significant reduction of the fibrinolytic activity of the urine was found in DGS without chronic renal failure and especially in DGS with chronic renal failure. It is concluded that reduced levels of urinary plasminogen activators may be used as an index of preclinical stages of renal involvement.