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TRH stimulation test
Purpose
assessing the degree of suppression in suspected hyperthyroidism or hypothyroidism
Prior to the availability of sensitive TSH assays, thyrotropin releasing hormone or TRH stimulation tests were relied upon for confirming and assessing the degree of suppression
in suspected hyperthyroidism. Typically, this stimulation test involves determining basal
TSH levels and levels 15 to 30 minutes after an intravenous bolus of TRH. Normally,
TSH would rise into the concentration range measurable with less sensitive TSH assays.
Third generation TSH assays do not have this
limitation and thus TRH stimulation is generally not required when third generation TSH
assays are used to assess degree of suppression.
and 22 Related for: TRH stimulation test information
availability of sensitive TSH assays, thyrotropin releasing hormone or TRHstimulationtests were relied upon for confirming and assessing the degree of suppression...
releasing hormone (TRH) secretion, in which case it may be low or falsely normal. In such a case a TRHstimulationtest, in which TRH is given and TSH levels...
gland. The production of TSH is controlled by thyrotropin-releasing hormone (TRH), which is produced in the hypothalamus. TSH levels may be suppressed by...
suppression therapy GnRH antagonist GnRH agonist (inducing an initial stimulation (flare up) followed by permanent blockage of the GnRH pituitary receptor)...
The test is relatively simple, involving one blood sample taken before TRH administration, and one 10 minutes or 30 minutes following TRH. TRH is currently...
the secretion of TRH. Synthetic TRH is also used by physicians as a test of TSH reserve in the pituitary gland as it should stimulate the release of TSH...
pituitary gland is stimulated in turn by thyrotropin-releasing hormone (TRH), released from the hypothalamus. Production of TSH and TRH is decreased by thyroxine...
"Stimulation der TSH-Sekretion durch TRH (Thyrotropin Releasing Hormone): diagnostische Bedeutung und pathophysiologische Folgerungen" (Stimulation of...
hyperthyroidism (an overactive thyroid gland). A stimulationtest with thyrotropin-releasing hormone (TRH) is not regarded as useful. Prolactin can be measured...
conditions with elevated levels of thyroid-stimulating hormone (TSH) or thyrotropin-releasing hormone (TRH). No obvious cause is found in about 50% of...
routinely tested. To differentiate between different types of hypothyroidism, a specific test may be used. Thyrotropin-releasing hormone (TRH) is injected...
have a range of actions beyond stimulation of erythropoiesis including vasoconstriction-dependent hypertension, stimulating angiogenesis, and promoting cell...
factor/hormone) AMH （or MIF or MIH) Peptide testes Sertoli cell AMHR2 Inhibit release of prolactin and TRH from anterior pituitary 13 Adiponectin Acrp30...
diagnostic procedure is the TRHstimulationtest. In this test, the cat is administered thyrotropin-releasing hormone (TRH), which leads to a significant...
implantation. The presence of hCG is detected in some pregnancy tests (HCG pregnancy strip tests). Some cancerous tumors produce this hormone; therefore, elevated...
concentrations are the most potent stimulator of aldosterone secretion. the ACTH stimulationtest, which is sometimes used to stimulate the production of aldosterone...
of hormones that are secreted pulsatilely include insulin, thyrotropin, TRH, gonadotropin-releasing hormone (GnRH) and growth hormone (GH). In the nervous...
important feedback systems are mediated via the hypothalamus and pituitary. TRH – TSH – T3/T4 GnRH – LH/FSH – sex hormones CRH – ACTH – cortisol Renin –...
normal destruction of bone by osteoclasts, which are indirectly stimulated by PTH. Stimulation is indirect since osteoclasts do not have a receptor for PTH;...
secretes a hormone called thyrotropin releasing hormone (TRH) which in turn release thyroid stimulating hormone (TSH). TSH signals thyroid to secrete thyroid...
estradiol), whereas FSH stimulates the spermatogenic tissue of the testes and the granulosa cells of ovarian follicles, as well as stimulating production of estrogen...
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