Hormone, thyrotropin

Hormone, thyrotropin
A hormone produced by the pituitary gland at the base of the brain in response to signals from the hypothalamus gland in the brain. The suffix -tropin indicates "an affinity for". Thyrotropin has an affinity for the thyroid. Thyrotropin is known also as thyroid stimulating hormone (TSH). Thyrotropin (or, if you prefer, TSH) promotes the growth of the thyroid gland in the neck and stimulates it to produce more thyroid hormones. When there is an excessive amount of thyroid hormones, the pituitary gland stops producing TSH, reducing thyroid hormone production. This mechanism maintains a relatively constant level of thyroid hormones circulating in the blood.

Medical dictionary. 2011.

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  • thyrotropin — tireotropinas statusas T sritis chemija apibrėžtis Baltyminis adenohipofizės hormonas. atitikmenys: angl. thyroid stimulating hormone; thyroidic stimulating hormone; thyrotropin rus. тиреотропин; тиреотропный гормон …   Chemijos terminų aiškinamasis žodynas

  • thyrotropin-releasing hormone — n a tripeptide hormone synthesized in the hypothalamus that stimulates secretion of thyroid stimulating hormone by the anterior lobe of the pituitary gland abbr. TRH called also protirelin, thyrotropin releasing factor * * * (TRH) a tripeptide… …   Medical dictionary

  • thyrotropin-releasing hormone test — thyrotropin releasing hormone stimulation test (for thyroid function) pituitary release of thyrotropin is assessed by administration of a bolus of thyrotropin releasing hormone and measurement of serum concentrations of thyrotropin at intervals.… …   Medical dictionary

  • thyrotropin-releasing hormone — [thī΄rə trō′pinri lēs′iŋ] n. a hormone produced by the hypothalamus that stimulates the production of thyrotropin: sometimes called thyrotropin releasing factor …   English World dictionary

  • Hormone Thyréotrope — L hormone thyréotrope (TRH), d après son nom anglais Thyrotropin releasing hormone) ou Thyréolibérine est une hormone tripeptidique produite par l hypothalamus qui stimule le largage de thyréotropine (TSH) et de la prolactine par l hypophyse… …   Wikipédia en Français

  • Hormone thyreotrope — Hormone thyréotrope L hormone thyréotrope (TRH), d après son nom anglais Thyrotropin releasing hormone) ou Thyréolibérine est une hormone tripeptidique produite par l hypothalamus qui stimule le largage de thyréotropine (TSH) et de la prolactine… …   Wikipédia en Français

  • thyrotropin — [thī rä′trəfinthī΄rə trō′pin, thī rä′trə pin] n. [ THYRO + TROP(HIC) + IN1] a hormone isolated from the anterior pituitary that stimulates the production of thyroxine in the thyroid: also thyrotrophin [thī rä′trəfin] …   English World dictionary

  • Thyrotropin-releasing hormone receptor — The thyrotropin releasing hormone receptor (TRHR) is a G protein coupled receptor which binds the tripeptide thyrotropin releasing hormone.cite journal | author = Yamada M, Monden T, Konaka S, Mori M | title = Assignment of human thyrotropin… …   Wikipedia

  • hormone — hormonal, hormonic /hawr mon ik, moh nik/, adj. /hawr mohn/, n. 1. Biochem. any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues… …   Universalium

  • Thyrotropin receptor — The thyrotropin receptor (or TSH receptor) is a gene (and associated protein) which responds to thyroid stimulating hormone (also known as thyrotropin , and stimulates the production of thyroxine (T4) and triiodothyronine (T3). The TSH receptor… …   Wikipedia

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