The serum immunoglobulin levels in Down's syndrome and other diseases associated with mental disorder.

Abstract

The serum levels of IgA, IgM, IgG and IgD were determined in patients with Down's syndrome (69 cases), Oligophrenia (101 cases) and Morbus Wilson (18 cases). In sera from Down's syndrome patients a significant increase in the levels of IgA, IgG and IgD were found. IgM levels were identical to those of healthy controls. The immunoglobulin levels in both the oligophrenia and Wilson's disease patients were not different from those of controls.