[Detection of antibodies against thyroid gland membranes].

We present an enzyme immunoassay for the determination of thyroid membrane bound antibodies. This assay can help to differentiate autoimmune and non-autoimmune thyroid diseases. We used 101 sera and compared our results with these of commercial assay kits. In this form we estimate with our test more than one thyroid antibody, but we found a good correlation especially to the microsomal antibody. We can give the results as an index at a constant serum dilution or in titers.