[Preliminary observations on the behavior of immunoglobulins in diabetics treated by different methods].

IgG, IgM and IgA values were determined in 45 diabetic patients of various ages and both sexes (30 treated with oral hypoglycaemising drugs and 15 with insulin). A marked departure from normal serum IgA values in subjects receiving oral hypoglycaemising preparations for at least 4 yr was the only alteration worthy of note.