| receptors, thyrotropin | Cell surface proteins that bind thyrotropin and trigger intracellular changes influencing the behaviour of cells. These receptors are present in the nervous system and on cells in the thyroid gland. Autoantibodies to these receptors are implicated in graves', hashimoto's, and other thyroid diseases. (12 Dec 1998) |
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| thyrotropin | <endocrinology> Polypeptide hormone (28 kD), secreted by the anterior pituitary gland, that activates cyclic AMP production in thyroid cells leading to production and release of the thyroid hormones (T4 and T3). T4 and T3 blood levels feedback on the pituitary gland and decrease thyroid stimulating hormone production when T3 and T4 levels are high. (27 Sep 1997) |
| thyrotropin-producing adenoma | <tumour> A rare pituitary adenoma usually associated with hypo-or hyperthyroidism. (05 Mar 2000) |
| thyrotropin resistance | An autosomal recessive disorder in which the thyrocytes are unresponsive to thyrotropin. Compare: pseudohypoparathyroidism. (05 Mar 2000) |
| adrenocorticotropic releasing factor | Hormone produced by hypothalamus that causes pituitary to secrete adrenocorticotropic hormone. (05 Mar 2000) |
| gastrin-releasing peptide | <hormone> A regulatory peptide (27 amino acids) thought to be the mammalian equivalent of bombesin. It elicits gastrin release and regulates gastric acid secretion and motor function. It causes bronchoconstriction and vasodilation in the respiratory tract and stimulates the growth and mitogenesis of cells in culture. Once released from nerves in the antrum of the stomach, the neuropeptide stimulates release of gastrin from the g cells. Chemical name: Gastrin-releasing peptide (12 Dec 1998) |
| releasing factors | Hormones produced by the hypothalamus whichstimulate the release of other hormones in the pituitary gland. (09 Oct 1997) |
| melanotropin-releasing factor | A hexapeptide similar to oxytocin; it stimulates the release of melanotropin. Synonym: melanotropin-releasing factor, melanotropin-releasing hormone. Origin: melanotropin + L. Libero, to free, + -in (05 Mar 2000) |
| gonadotropin-releasing factor | <hormone> The peptide hormone that control reproductive function. It produced and released by the hypothalamus and controls the production and release of gonadotrophins from the pituitary gland. It causes the production of luteinising hormone and follicle-stimulating hormone. Synonym: gonadotropin-releasing factor, gonadotropin-releasing hormone, luteinizing hormone/follicle-stimulating hormone-releasing factor, gonadoliberin. Origin: Gonad + L. Libero, to free, + -in (19 Sep 2002) |
| corticotrophin releasing factor | adrenocorticotrophin |
| corticotropin-releasing factor | <endocrinology, physiology> A neuropeptide released by the hypothalamus that stimulates the release of corticotropin by the anterior pituitary gland. Chemical name: Corticotropin-releasing factor Synonym: corticoliberin, corticotropin releasing factor. (12 Dec 1998) |
| prolactin-releasing factor | A substance of hypothalamic origin that stimulates the release of prolactin. Synonym: prolactin-releasing factor, prolactin-releasing hormone. Origin: prolactin + L. Libero, to free, + -in (05 Mar 2000) |
| somatotropin-releasing factor | A decapeptide released by the hypothalamus, which induces the release of human growth hormone (somatotropin). Synonym: growth hormone-releasing factor, growth hormone-releasing hormone, somatotropin-releasing factor, somatotropin-releasing hormone. Origin: somatotropin + L. Libero, to free, + -in (05 Mar 2000) |
| TSH releasing factor | <endocrinology> A tripeptide produced by the hypothalamus that stimulates the anterior pituitary to release TSH. (18 Nov 1997) |
| adipokinetic hormone | An anterior pituitary hormone that causes mobilization of fat from adipose tissue. Synonym: adipokinetic hormone. (05 Mar 2000) |