thyrotrophic releasing hormone

a hormone secreted by the neurosecretory cells of the HYPOTHALAMUS which releases THYROTROPHIC HORMONE from the anterior lobe of the PITUITARY GLAND, which in turn causes the release of thyroxine.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

References in periodicals archive

It is classified as congenital, describing a newborn with reduced or very rarely absence of thyroid hormone production; primary, caused by intrinsic defect of thyroid structure; secondary to a pituitary insufficiency; and tertiary from insufficient secretion of hypothalamic thyrotrophic releasing hormone. The most frequent type is the primary type, characterized by the presence of low free plasma T4 (thyroxin), below 0.8 ng/dl and high TSH (Thyrotrophic) above 4.0 mIU/ml.

A study on cutaneous manifestations of hypothyroidism in a tertiary hospital in South India

A multitude of defects at all levels of hypothalamic-pituitary-thyroid-peripheral axis does seem to exist in uremia (13), which include impaired release of TSH in response to TRH (thyrotrophic releasing hormone), impaired thyroid hormone secretion in response to TSH.

Sick euthyroid syndrome in chronic kidney disease

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