a hormone secreted by the anterior lobe of the pituitary gland that has an affinity for and specifically stimulates the thyroid gland. Called also thyroid-stimulating hormone.
thyrotropin alfa a recombinant form of human thyrotropin; it binds to thyrotropin receptors and stimulates the steps in thyroid hormone synthesis, including iodine uptake and synthesis and secretion of thyroglobulin; used as a diagnostic adjunct in serum thyroglobulin testing, with or without radioiodine scanning, in followup of patients with well-differentiated thyroid cancer, administered intramuscularly.
thyrotropin-releasing hormone stimulation test (thyrotropin-releasing hormone test) a thyroid function test that assesses release of thyrotropin by the pituitary gland; a bolus of thyrotropin-releasing hormone is administered and serum concentrations of thyrotropin are assessed at intervals; if serum levels do not increase within 30 to 40 minutes, the pituitary thyrotrophs are dysfunctional. Called also TRH test and TRH stimulation test.
A glycoprotein hormone produced by the anterior lobe of the hypophysis that stimulates the growth and function of the thyroid gland; also used as a diagnostic test to differentiate primary and secondary hypothyroidism.
/thy·rot·ro·pin/ (thi-rot´rah-pin) thyroid-stimulating hormone; a hormone of the anterior pituitary gland having an affinity for and specifically stimulating the thyroid gland.
thyrotropin alfa a recombinant form of thyrotropin used as a diagnostic adjunct in serum thyroglobulin testing in followup of patients with thyroid cancer.
A hormone secreted by the anterior lobe of the pituitary gland that stimulates and regulates the activity of the thyroid gland. Also called thyroid-stimulating hormone, thyrotropic hormone.
thy′ro·tro′pic (-trō′pĭk, -trŏp′ĭk), thy′ro·tro′phic (-trō′fĭk, -trŏf′ĭk) adj.
Thyroid stimulating hormone. See TSH.
A glycoprotein hormone produced by the anterior lobe of the hypophysis that stimulates the growth and function of the thyroid gland; it also is used as a diagnostic test to differentiate primary and secondary hypothyroidism.
A hormone that stimulates the thyroid gland to produce hormones that regulate metabolism.
Glycoprotein hormone produced by anterior lobe of hypophysis; also used as a diagnostic test to differentiate primary and secondary hypothyroidism.
a hormone secreted by the anterior lobe of the pituitary gland that has an affinity for and specifically stimulates the thyroid gland. Called also thyroid-stimulating hormone (TSH).
a tripeptide produced in the hypothalamus and released into the hypothalamohypophyseal portal circulation to reach the adenohypophysis where it triggers the release of thyroid-stimulating hormone. Called also TSH releasing factor, TSH releasing hormone.
measures serum levels of thyrotropin-stimulating hormone (TSH) before and after administration of TRH.
measurement of serum levels of thyroid hormone(s) (T3 and/or T4) before and after the administration of TSH is a more reliable indicator of the functional capacity of the thyroid glands than single determinations and may distinguish between primary and secondary hypothyroidism.