[Serum immunoglobulins in the idiopathic nephrotic syndrome].

In 78 children with idiopathic nephrotic syndrome, the levels of serum immunoglobulins were studied. In 45 cases with lipoid nephrosis, 7 with segmentary and focal sclerosis and in 26 with membranoproliferative glomerulonephritis, a reduction in per centum values of IgG were found in similar magnitude in the groups. Levels for IgA were not found abnormal and there was an increase in values for IgM exclusively in cases of lipoid nephrosis.