[Early diagnosis of primary chronic glomerulonephritis in the latency stage].

In 74 of 195 patients with isolated proteinuria and/or haematuria investigated by means of renal biopsy laser-nephelometric determinations of the concentrations of albumin, alpha2-macroglobulin, transferrin, IgG, IgA and IgM in the urine were performed. Their result was that patients with chronic interstitial nephritis or chronic glomerulonephritis by increased concentration of albumin, transferrin, IgG and IgA statistically ascertained differ from patients with normal renal tissue or slight glomerular abnormalities.