thyrotropin /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.
Thyroid stimulating hormone (thyrotropin)
thyrotropin.
thyrotropin [thi´ro-tro″pin, thi-rot´rah-pin]
thyrotropin
thyrotropin alfa a recombinant form of thyrotropin used as a diagnostic adjunct in serum thyroglobulin testing in followup of patients with thyroid cancer.
thy·ro·tro·pin (th  r -tr  p n, th-r tr-) or thy·ro·tro·phin (-fn)n. A glycoprotein hormone secreted by the anterior lobe of the pituitary gland that stimulates and regulates activity of the thyroid gland. Also called thyroid-stimulating hormone, thyrotropic hormone. |
Thyroid stimulating hormone (thyrotropin)
A hormone that stimulates the thyroid gland to produce hormones that regulate metabolism.
Mentioned in: Pituitary Dwarfism
thyrotropin.
thyrotropin [thi´ro-tro″pin, thi-rot´rah-pin]
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.
thyrotropin
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).
thyrotropin releasing hormone (TRH)
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.
thyrotropin releasing hormone stimulation test, response test
measures serum levels of thyrotropin-stimulating hormone (TSH) before and after administration of TRH.
thyrotropin-stimulating hormone (TSH) stimulation test, response test
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.
thyrotropin
Thyroid stimulating hormone. See TSH.
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