Intermediate
Technical
IVT
releasing hormone
Hypothalamic peptide hormones that stimulate the release of specific hormones from the anterior pituitary.
Full Definition
Releasing hormones are peptide hormones synthesized and secreted by hypothalamic neurons into the hypothalamic-hypophyseal portal circulation. These hormones travel to the anterior pituitary where they bind to specific receptors and stimulate the release of corresponding pituitary hormones. Examples include corticotropin-releasing hormone (CRH), thyrotropin-releasing hormone (TRH), and growth hormone-releasing hormone (GHRH).
Usage
Usage note: Distinguish from inhibiting hormones which suppress rather than stimulate pituitary secretion.
In Context
- "The releasing hormone was administered to test pituitary responsiveness." — Endocrine stimulation test protocol
- "Dysregulation of releasing hormones contributes to hypothalamic dysfunction." — Medical textbook
Also known as
releasing factor
hypothalamic releasing hormone
Contrasted with
inhibiting hormone
Don't confuse with
inhibiting hormone
tropic hormone