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Related to vasopressin: epinephrine, oxytocin


(văz'ōprĕs`ĭn): see antidiuretic hormoneantidiuretic hormone
, polypeptide hormone secreted by the posterior pituitary gland. Its principal action is to regulate the amount of water excreted by the kidneys. Antidiuretic hormone (ADH), known also as vasopressin, causes the kidneys to resorb water directly from the
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a hormone secreted by the posterior lobe of the hypophysis; causes constriction of vessels (acting on the smooth muscles of their walls) and increased blood pressure (pressor effect); also maintains at a proper level the reverse absorption of water in the straight tubules of the kidneys, that is, decreases the quantity of urine discharged (antidiuretic effect). Vasopressin is formed in the neurosecretory cells of the anterior nuclei of the hypothalmus, from which it enters the hypophysis along the nerve fibers. The antidiuretic action of the hormone is one of the factors that maintain the relative constancy of the water-salt metabolism in the bodies of vertebrate animals and man. A deficiency of vasopressin may lead to diabetes insipidus, in which discharge of urine is sharply increased. Vasopressin is contained in preparations obtained from the posterior hypophysis—Pituitrin and adiurekrin. Chemically, vasopressin is an octapeptide constructed of eight amino acids (in the majority of animals and in humans vasopressin consists of cysteine, tyrosine, phenylalanine, glutamine, asparagin, proline, arginine, and glycine; in pigs lysine is found instead of arginine). In structure and effect vasopressin is similar to another hormone of the hypophysis—oxytocin.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A peptide hormone which is elaborated by the posterior pituitary and which has a pressor effect; used medicinally as an antidiuretic. Also known as antidiuretic hormone (ADH).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
It works through the interconnection of the sympathoadrenal and neurohypophyseal systems, which in turn are responsible for catecholamine secretion, cytokines activation and vasopressin release, respectively.
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For the interpretation of the effect of vasopressin, speech was examined as a functional system, the afferent, central and efferent components of which correspond to the processes of perception, comprehension, and production of speech, (i.e., the sensory, integrative, and motor components).
In March 2019, the FDA determined that there is no clinical need to compound vasopressin under Section 503B of the Drug Quality and Security Act.
For further confirmation a post vasopressin induced stimulation samples are also obtained.
The first approach is to employ fluids and avoid the use of vasopressin. This approach may be particularly useful for managing acute postoperative DI in young children.
The cause of low fluid levels may be due to a change in the hormone called vasopressin, which helps maintain hydration levels during the day or night.