Thyroid disease with monoclonal (immunoglobulin G lambda) antibody to triiodothyronine and thyroxine.

A man with previous Graves' disease spontaneously developed hypothyroidism. He became euthyroid with T4 therapy, but developed inappropriately elevated serum levels of T3 and, to a lesser extent, T4. Gel filtration analysis (Sephadex G-150) of serum trace-labeled with [125I]T3 revealed binding to a high molecular weight fraction, distinct from normal T3-binding proteins.

A rapid standardized enzyme immunoassay for autoantibodies to thyroglobulin.

A rapid, specific, standardized, objective and sensitive quantitative enzyme immunoassay (ELISA) procedure has been developed for the detection of human autoantibodies to thyroglobulin. It involves three ten minute incubations, with the positive control serum adjusted to yield an absorbance of approximately 1.00.

The pituitary-thyroid axis after hemithyroidectomy in euthyroid man.

The pathogenesis of euthyroid goiter is assumed to be TSH dependent, but most studies have not demonstrated elevation of serum TSH. To elucidate the early events involved in thyroid growth, we studied thyroid function in eight euthyroid patients subjected to hemithyroidectomy for solitary cold nodules preoperatively and 2, 15, 60, and 90 days and 36 months, postoperatively. Although within the euthyroid range, serum T4 decreased at 30 days and thereafter up to 90 days (P less than 0.

Control of puberty in female rats: the effect of PTU-induced hypothyroidism and systematic undernutrition.

Sprague-Dawley rats were fed Purina Lab Chow with or without propylthiouracil (PTU), 0.001%, 0.01% or 0.

Hemoglobin A2 in hyperthyroidism.

Erythrocyte hemoglobin A2 (Hb A2) was quantitated in 28 hyperthyroid patients prior to antithyroid therapy and at intervals during therapy. Fetal hemoglobin (Hb F) levels and red cell mean corpuscular volume (MCV) were also monitored. Before therapy, Hb A2 was significantly elevated (mean +/- SD, 3.