Measles antibodies and kappa-lambda light chain distribution in immunoglobulins of patients affected with multiple sclerosis.

The presence of measles antibodies in serum immunoglobulin G fractions from seven patients affected with multiple sclerosis was investigated with HI technic. The kappa-lambda light chain ratios of all samples under investigation were evaluated. Three multiple sclerosis patients, who displayed either fractionation or a tendency towards fractionation in their serum, had slightly elevated measles antibody titers associated to increased kappa/lambda ratios.