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551 11998 Ensembl ENSG00000101200 ENSMUSG00000037727 UniProt P01185 P35455 RefSeq (mRNA) NM_000490 NM_009732 RefSeq (protein) NP_000481 NP_033862 Location (UCSC) Chr 20: 3.08 – 3.08 Mb Chr 2: 130.42 – 130.42 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Human vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin, is a hormone synthesized ...
Vasopressin acts on medullary vasculature through V 1 R to reduce blood flow to inner medulla without affecting blood flow to outer medulla. V 1 Rs on the luminal membrane of the collecting duct limit the antidiuretic action of vasopressin.
Parvocellular vasopressin cells, which project to many points in the hypothalamus and limbic system, as well as to the brainstem and spinal cord (these are involved in blood pressure and temperature regulation), and brown fat thermogenesis. Parvocellular CRH neurons, which are thought to be involved in stress-related behaviors.
CRH and vasopressin are released from neurosecretory nerve terminals at the median eminence. CRH is transported to the anterior pituitary through the portal blood vessel system of the hypophyseal stalk and vasopressin is transported by axonal transport to the posterior pituitary gland. There, CRH and vasopressin act synergistically to stimulate ...
Vasopressin infusions are in use for septic shock patients not responding to fluid resuscitation or infusions of catecholamines (e.g., dopamine or norepinephrine) to increase the blood pressure while sparing the use of catecholamines. These argipressins have much shorter elimination half-life (around 20 minutes) than synthetic non-arginine ...
The narrowing of blood vessels leads to an increase in peripheral resistance, thereby elevating blood pressure. While vasoconstriction is a normal and essential regulatory mechanism for maintaining blood pressure and redistributing blood flow during various physiological processes, its dysregulation can contribute to pathological conditions.
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These cardiopulmonary receptors also inhibits vagal stimulation in the vasoconstrictor center of the medulla resulting in decreased release of angiotensin, aldosterone, and vasopressin. These receptors also cause a renal vasodilation, resulting in increased diuresis. This decreases the blood volume, resulting in the decrease of blood pressure.