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Hormona alliberadora de tirotropina

Infotaula de compost químicHormona alliberadora de tirotropina
Substància químicatipus d'entitat química Modifica el valor a Wikidata
Massa molecular362,170253 Da Modifica el valor a Wikidata
Trobat en el tàxon
Rolhormona Modifica el valor a Wikidata
Estructura química
Fórmula químicaC₁₆H₂₂N₆O₄ Modifica el valor a Wikidata
SMILES canònic
Model 2D
C1CC(N(C1)C(=O)C(CC2=CN=CN2)NC(=O)C3CCC(=O)N3)C(=O)N Modifica el valor a Wikidata
SMILES isomèric

C1C[C@H](N(C1)C(=O)[C@H](CC2=CN=CN2)NC(=O)[C@@H]3CCC(=O)N3)C(=O)N Modifica el valor a Wikidata
Identificador InChIModel 3D Modifica el valor a Wikidata
Estructura

L'Hormona alliberadora de tirotropina, en anglès: Thyrotropin-releasing hormone (TRH), o també thyrotropin-releasing factor (TRF), thyroliberin o protirelin, és una neurohormona tròpica, tripeptídica que estimula l'alliberament de l'hormona TSH (thyroid-stimulating hormone) i prolactina de la pituitària anterior. El TRH s'ha usat clínicament per al tractament de la degeneració espinocerebral en humans.[1]

Síntesi

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El sistema de les hormones tiroides, T3, i tiroxina, T4[2]

La TRH es produeix en neurones de l'hipotàlem.[3] Al principi es sintetitza com el precursor aminoàcid 242.

Història

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La seqüència de TRH va ser determinada primer i sintetitzada per Roger Guillemin i Andrew V. Schally el 1969.[4][5]

Referències

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  1. Zhang J, Watanabe Y, Yamada S, Urayama A, Kimura R «Neuroprotective effect and brain receptor binding of taltirelin, a novel thyrotropin-releasing hormone (TRH) analogue, in transient forebrain ischemia of C57BL/6J mice». Life Sci., 72, 4–5, 2002, pàg. 601–7. DOI: 10.1016/S0024-3205(02)02268-3. PMID: 12467901.
  2. References used in image are found in image article in Commons:Commons:File:Thyroid_system.png#References.
  3. Taylor T, Wondisford FE, Blaine T, Weintraub BD «The paraventricular nucleus of the hypothalamus has a major role in thyroid hormone feedback regulation of thyrotropin synthesis and secretion». Endocrinology, 126, 1, January 1990, pàg. 317–24. DOI: 10.1210/endo-126-1-317. PMID: 2104587.
  4. Boler J, Enzmann F, Folkers K, Bowers CY, Schally AV «The identity of chemical and hormonal properties of the thyrotropin releasing hormone and pyroglutamyl-histidyl-proline amide». Biochem. Biophys. Res. Commun., 37, 4, November 1969, pàg. 705–10. DOI: 10.1016/0006-291X(69)90868-7. PMID: 4982117.
  5. Burgus R, Dunn TF, Desiderio D, Guillemin R «[Molecular structure of the hypothalamic hypophysiotropic TRF factor of ovine origin: mass spectrometry demonstration of the PCA-His-Pro-NH2 sequence]» (en francès). C.R. Hebd. Seances Acad. Sci., Ser. D, Sci. Nat., 269, 19, November 1969, pàg. 1870–3. PMID: 4983502.


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Hormona alliberadora de tirotropina
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