thyrotropin ( thyroid-stimulating hormone or tsh ) -receptor antibodies , important in the pathogenesis of graves ' disease , can be assayed by one of two methods : ( 1 ) bioassays that measure stimulation of thyroid cellular activity by patient immunoglobulins or ( 2 ) radioreceptor assays that measure inhibition of binding of labeled tsh to tsh receptors by the same substances .
C0018213
graves
C0040132
thyroid