抄録
A new fluorometric method for determination of the activity of urinary dipe-ptidyl-aminopeptidase IV (X-prolyl dipeptidyl-aminopeptidase) was applied to the assay of the enzyme in the urine from patients with renal diseases. It was possible to use urine from patients directly without any preliminary isolation procedures. The urinary enzyme activity was found to be elevated in some patients with chronic glomerulonephritis and nephrotic syndrom.
