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TRH is used clinically by intravenous injection (brand name Relefact TRH) to test the response of the anterior pituitary gland; this procedure is known as a TRH test. This is done as diagnostic test of thyroid disorders such as secondary hypothyroidism and in acromegaly .
TRH-stimulation testing however continues to be useful for the differential diagnosis of secondary (pituitary disorder) and tertiary (hypothalamic disorder) hypothyroidism. Patients with these conditions appear to have physiologically inactive TSH in their circulation that is recognized by TSH assays to a degree such that they may yield ...
The TRH stimulates the anterior pituitary to produce thyroid-stimulating hormone (TSH). The TSH, in turn, stimulates the thyroid to produce thyroid hormone until levels in the blood return to normal. Thyroid hormone exerts negative feedback control over the hypothalamus as well as anterior pituitary, thus controlling the release of both TRH ...
CRH and TRH are secreted into the hypophyseal portal system, and target different neurons in the anterior pituitary. Dysfunctions of the PVN can cause hypersomnia in mice. [ 2 ] In humans, the dysfunction of the PVN and the other nuclei around it can lead to drowsiness for up to 20 hours per day. [ 3 ]
The abbreviation TRH can refer to Thyrotropin-releasing hormone; Their Royal Highnesses, style when referring to several royals;
For GnRH, TRH and GHRH the increase in Ca 2+ is achieved by the releasing hormone coupling and activating G protein coupled receptors coupled to the G q alpha subunit, activating the IP3/DAG pathway to increase Ca 2+. [1] For GHRH, however, this is a minor pathway, the main one being the cAMP dependent pathway. [2]
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22045 Ensembl ENSG00000174417 ENSMUSG00000038760 UniProt P34981 P21761 RefSeq (mRNA) NM_003301 NM_013696 RefSeq (protein) NP_003292 NP_038724 Location (UCSC) Chr 8: 109.09 – 109.12 Mb Chr 15: 44.06 – 44.1 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Thyrotropin-releasing hormone receptor (TRHR) is a G protein-coupled receptor which binds thyrotropin-releasing hormone. The TRHR ...