ADH
Vasopressin
hormone
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«Vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin,[5] is a hormone synthesized as a peptideprohormone in neurons in the hypothalamus, and is converted to AVP. It then travels down the axon of that cell, which terminates in the posterior pituitary, and is released from vesicles into the circulation in response to extracellular fluid hypertonicity (hyperosmolality). AVP has two primary functions. First, it increases the amount of solute-free water reabsorbed back into the circulation from the filtrate in the kidney tubules of the nephrons. Second, AVP constricts arterioles, which increases peripheral vascular resistance and raises arterial blood pressure.[6][7][8]
A third function is possible. Some AVP may be released directly into the brain from the hypothalamus, and may play an important role in social behavior, sexual motivation and pair bonding, and maternal responses to stress.[9]
Vasopressin induces differential of stem cell into cardiomyocytes and promotes heart muscle homeostasis.[10]
It has a very short half-life, between 16–24 minutes.[8]
Vasopressin regulates the tonicity of body fluids. It is released from the posterior pituitary in response to hypertonicity and causes the kidney to reabsorb solute-free water and return it to the circulation from the tubules of the nephron, thus returning the tonicity of the body fluids toward normal. An incidental consequence of this renal reabsorption of water is concentrated urine and reduced urine volume. AVP released in high concentration may also raise blood pressure by inducing moderate vasoconstriction.
AVP also may have a variety of neurological effects on the brain. It may influence pair-bonding in voles. The high-density distributions of vasopressin receptor AVPr1a in prairie vole ventral forebrain regions have been shown to facilitate and coordinate reward circuits during partner preference formation, critical for pair bond formation.[11]
A very similar substance, lysine vasopressin (LVP) or lypressin, has the same function in pigs and is used in human AVP deficiency.[12]
Vasopressin has three main effects:
Vasopressin released within the brain may have several actions:
Many factors influence the secretion of vasopressin:
The physiologic stimulus for secretion of vasopressin is increased osmolality of the plasma, monitored by the hypothalamus. A decreased arterial blood volume, (such as can occur in cirrhosis, nephrosis and heart failure), stimulates secretion, even in the face of decreased osmolality of the plasma: it supersedes osmolality, but with a milder effect. In other words, vasopressin is secreted in spite of the presence of hypoosmolality (hyponatremia) when the arterial blood volume is low.
The AVP that is measured in peripheral blood is almost all derived from secretion from the posterior pituitary gland (except in cases of AVP-secreting tumours). Vasopressin is produced by magnocellular neurosecretory neurons in the Paraventricular nucleus of hypothalamus (PVN) and Supraoptic nucleus (SON). It then travels down the axon through the infundibulum within neurosecretory granules that are found within Herring bodies, localized swellings of the axons and nerve terminals. These carry the peptide directly to the posterior pituitary gland, where it is stored until released into the blood.» (wikipedia)
Summary on Vasopressin
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Pathways of Vasopressin
Vasopressin Biolinks
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-1.4Perhaps, Vasopressin affects Fat Mass(BioMindmap Proof Quality is Negative.) (BioMindmap had flagged this statement.)
Evidence Sources
Biolinks for Vasopressin are extracted by users from 13 related publications.-
1975
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- From this research we know that
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-1.4Perhaps, Vasopressin affects Fat Mass(BioMindmap Proof Quality is Negative.) (BioMindmap had flagged this statement.)
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2015
- Organism: Mouse / Rat (Rodents)
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- From this research we know that
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-1.4Perhaps, Vasopressin affects Fat Mass(BioMindmap Proof Quality is Negative.) (BioMindmap had flagged this statement.)
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1982
- Organism: Males
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2018
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2019Clinical Guideline
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2012Systematic Review
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1979
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1992
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1992
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2015
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1993Non Random CT
- Organism: Humans — Young
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