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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 ...
If the increase in serum TSH level following TRH administration is absent or very slight, then the cause of the hypothyroidism is in the anterior pituitary gland, i.e. the pituitary is not secreting TSH. Therefore, even when TRH is given exogenously, TSH levels do not rise as the pituitary is diseased. [citation needed]
Thyrotropin-releasing hormone (TRH) is a hypophysiotropic hormone produced by neurons in the hypothalamus that stimulates the release of thyroid-stimulating hormone (TSH) and prolactin from the anterior pituitary. TRH has been used clinically for the treatment of spinocerebellar degeneration and disturbance of consciousness in humans. [1]
Deutsch: Referenzbereiche für die Sekretionsleistung der Schilddrüse (SPINA-GT) und den TSH-Index nach Jostel (TSHI oder JTI) verglichen mit univariablen Referenzbereichen für Thyreotropin (TSH) und freies Thyroxin (FT4), dargestellt im zweidimensionalen Phasenraum, der durch TSH- und FT4-Serumkonzentrationen definiert ist.
Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid. [1] TFTs may be requested if a patient is thought to suffer from hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy.
Anterior pituitary produces prolactin, GH, TSH, ACTH, FSH, LH. 15–20% of corticotroph cells, produce ACTH. The targets are the adrenal glands, adipocytes and melanocytes. 3–5% thyrotroph cells, produce TSH. 10–15%, Gonadotroph, produce LH and FSH 40–50% somatotroph, produce GH in particular in childhood. 10–15% lactotroph, produce ...
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thyrotropin-releasing hormone (TRH) The gland's response is assessed by measuring the rise in cortisol and growth hormone (GH) in response to the hypoglycaemia caused by insulin, rises in prolactin and thyroid-stimulating hormone (TSH) caused by TRH and rises in luteinizing hormone (LH) and follicle-stimulating hormone (FSH) caused by