[Study of the enzymatic activity of the blood leukocytes in experimental nephrotoxic nephritis in rats].

The enzymatic activity of blood leukocytes was studied in rats with Masugi nephritis by means of the quantitative cytochemical method. Nephrotoxin injection during first hours and days did not produce specific changes in the enzymatic activity. Maximum changes were observed on the 8-th day when the elevation of the activity of dehydrogenase lymphocytes and neutrophils acid phosphatase was observed at the same time with most pronounced histological changes in the kidneys, the decrease of the complement titer and the presence of nephrotoxin and autoglobulin in the renal glomeruli. Later the histological changes became less pronounced, and the enzymatic activity decreased. In rats with proteinuria the activity of the neutrophil leukocytes acid phosphatase was higher than in animals without proteinuria.