Vasopressin: Difference between revisions

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{{PBB|geneid=551}}
{{About|the [[endogenous]] peptide|the [[exogenous]] peptide|Vasopressin (medication)}}
{{drugbox
| Watchedfields = changed
| verifiedrevid =
| drug_name =
| IUPAC_name = 1-{[(4R,7S,10S,13S,16S,19R)-19-Amino-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-13-benzyl-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-4-yl]carbonyl}-L-p rolyl-L-arginylglycinamide
| synonyms= Arginine Vasopressin; Argipressin
| image = Vasopressin_labeled.png
| width = 250px
| image2 = Arginine_vasopressin3d.png


'''Arginine vasopressin''' ('''AVP'''), also known as '''vasopressin''', '''argipressin''' or '''antidiuretic hormone''' ('''ADH'''), is a [[neurohypophysial hormone]] found in most [[mammals]], including humans.<ref name="isbn0-387-30348-0">{{cite book | author =  Caldwell HK, Young WS III | authorlink = | editor = Lajtha A, Lim R | others = | title = Handbook of Neurochemistry and Molecular Neurobiology: Neuroactive Proteins and Peptides | edition = 3rd | language = | publisher = Springer | location = Berlin | year = 2006 | origyear = | chapter =  Oxytocin and Vasopressin: Genetics and Behavioral Implications | chapterurl= http://refworks.springer.com/mrw/fileadmin/pdf/Neurochemistry/0387303480C25.PDF | pages = 573–607| quote = | isbn = 0-387-30348-0 | oclc = | doi = | url =  | accessdate = }}</ref> Vasopressin is a [[peptide hormone]] that controls the reabsorption of molecules in the tubules of the [[kidneys]] by affecting the tissue's permeability. It also increases [[peripheral vascular resistance]], which in turn increases arterial [[blood pressure]]. It plays a key role in [[homeostasis]], and the regulation of water, glucose, and salts in the blood. It is derived from a [[preprohormone]] precursor that is synthesized in the [[hypothalamus]] and stored in vesicles at the posterior pituitary. Most of it is stored in the [[posterior pituitary]] to be released into the bloodstream; however, some AVP is also released directly into the brain.
<!--Physiological data-->
| pronounce = {{IPAc-en|ˌ|v||z||ˈ|p|r|ɛ|s|ɪ|n}}
| source_tissues = [[Supraoptic nucleus]]; [[Paraventricular nucleus of hypothalamus]]
| target_tissues = System-wide
| receptors = [[Vasopressin receptor 1A|V<sub>1A</sub>]], [[Vasopressin receptor 1B|V<sub>1B</sub>]], [[Vasopressin receptor 2|V<sub>2</sub>]], [[Oxytocin receptor|OXTR]]
| agonists = [[Felypressin]], [[Desmopressin]]
| antagonists = [[Diuretic]]s


==Physiology==
<!--Pharmacokinetic data-->
===Function===
| bioavailability =
One of the most important roles of AVP is to regulate the body's retention of water; it is released when the body is dehydrated and causes the [[kidney]]s to conserve water, thus concentrating the [[urine]], and reducing urine volume. In high concentrations, it also raises blood pressure by inducing moderate [[vasoconstriction]]. In addition, it has a variety of neurological effects on the brain, having been found, for example, to 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 <ref name="Young2004">{{cite journal | author = Lim MM, Young LJ | title = Vasopressin-dependent neural circuits underlying pair bond formation in the monogamous prairie vole| journal = Neuroscience | volume = 125| issue = 1| pages = 35–45 | year = 2004 | month = | pmid = 15051143 | pmc = | doi = 10.1016/j.neuroscience.2003.12.008    | url = http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T0F-4BYRRFP-1&_user=1512538&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000053401&_version=1&_urlVersion=0&_userid=1512538&md5=7ffbccd80f369411ae19d3e0139a6297 | issn = }}</ref>
| protein_bound = 1%
| metabolism = Predominantly in the [[liver]] and [[kidney]]s
| elimination_half-life = 10-20 minutes
| excretion = Urine
 
<!--Identifiers-->
| ATC_prefix = H01
| ATC_suffix = BA01
| IUPHAR_ligand = 2168
| CAS_number_Ref = {{cascite|correct|??}}
| CAS_number = 11000-17-2
| PubChem = 644077
| DrugBank_Ref = {{drugbankcite|correct|drugbank}}
| DrugBank = DB00067
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 559126
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = Y4907O6MFD
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = D00101
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 9937
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 373742
| PDB_ligand =
 
<!--Chemical data-->
| C=46 | H=65 | N=15 | O=12 | S=2
| molecular_weight =
| SMILES = c1ccc(cc1)C[C@H]2C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N2)Cc3ccc(cc3)O)N)C(=O)N4CCC[C@H]4C(=O)N[C@@H](CCCN=C(N)N)C(=O)NCC(=O)N)CC(=O)N)CCC(=O)N
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C46H65N15O12S2
/c47-27-22-74-75-23-33(45(73)61-17-5-9-34(61)44(72)56-28(8-4-16-53-46(51)52)39(67)54-21-37(50)65)60-43(71)32(20-36(49)64)59-40(68)29(14-15-35(48)63)55-41(69)31(18-24-6-2-1-3-7-24)58-42(70)30(57-38(27)66)19-25-10-12-26(62)13-11-25/h1-3,6-7,10-13,27-34,62H,4-5,8-9,14-23,47H2,(H2,48,63)(H2,49,64)(H2,50,65)(H,54,67)(H,55,69)(H,56,72)(H,57,66)(H,58,70)(H,59,68)(H,60,71)(H4,51,52,53)/t27-,28-,29-,30-,31-,32-,33-,34-/m0/s1
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = KBZOIRJILGZLEJ-LGYYRGKSSA-N
| density = 1.6±0.1
}}
{{Infobox_gene}}
 
'''Vasopressin''', also called '''antidiuretic hormone''' ('''ADH'''),  '''arginine vasopressin''' ('''AVP''') or '''argipressin''',<ref name="Dorlands">{{cite book | vauthors = Anderson DA | title = Dorland's Illustrated Medical Dictionary | publisher=Elsevier | url = https://books.google.com/?id=mNACisYwbZoC&printsec=frontcover&dq=Dorland%27s+Illustrated+Medical+Dictionary#v=snippet&q=argipressin&f=false | isbn = 978-1-4160-6257-8 | year = 2012 | edition = 32nd}}</ref> is a [[hormone]] synthesized as a [[peptide]] [[prohormone]] 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 [[Synaptic vesicle|vesicle]]s 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 [[Circulatory system|circulation]] from the filtrate in the [[Nephron#Renal tubule |kidney tubules]] of the [[nephrons]]. Second, AVP constricts [[arterioles]], which increases [[peripheral vascular resistance]] and raises arterial [[blood pressure]].<ref name=Marieb>{{cite book | last = Marieb | first = Elaine | name-list-format = vanc | title = Anatomy & physiology | publisher = Pearson Education, Inc | location = Glenview, IL | year = 2014 | isbn = 978-0-321-86158-0 }}</ref><ref name="isbn0-387-30348-0">{{cite book | vauthors = Caldwell HK, ((Young WS III)) | veditors = Lajtha A, Lim R | title = Handbook of Neurochemistry and Molecular Neurobiology: Neuroactive Proteins and Peptides | edition = 3rd | publisher = Springer | location = Berlin | year = 2006 | origyear = | chapter =  Oxytocin and Vasopressin: Genetics and Behavioral Implications | chapterurl= http://refworks.springer.com/mrw/fileadmin/pdf/Neurochemistry/0387303480C25.PDF | pages = 573–607| quote = | isbn = 978-0-387-30348-2 }}</ref><ref name="babar2013">{{cite journal | vauthors = Babar SM | title = SIADH associated with ciprofloxacin | journal = The Annals of Pharmacotherapy | volume = 47 | issue = 10 | pages = 1359–63 | date = October 2013 | pmid = 24259701 | doi = 10.1177/1060028013502457 }}</ref>
 
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 hormones#Oxytocin and vasopressin|sexual motivation]] and [[pair bonding]], and maternal responses to stress.<ref>{{cite journal | vauthors = Insel TR | title = The challenge of translation in social neuroscience: a review of oxytocin, vasopressin, and affiliative behavior | language = English | journal = Neuron | volume = 65 | issue = 6 | pages = 768–79 | date = March 2010 | pmid = 20346754 | pmc = 2847497 | doi = 10.1016/j.neuron.2010.03.005 | url = http://www.cell.com/article/S0896627310001765/abstract }}</ref>
 
Vasopressin induces differential of stem cells into cardiomyocytes and promotes heart muscle homeostasis.<ref name="Costa_2014">{{cite journal | vauthors = Costa A, Rossi E, Scicchitano BM, Coletti D, Moresi V, Adamo S | title = Neurohypophyseal Hormones: Novel Actors of Striated Muscle Development and Homeostasis | journal = European Journal of Translational Myology | volume = 24 | issue = 3 | pages = 3790 | date = September 2014 | pmid = 26913138 | pmc = 4756744 | doi = 10.4081/ejtm.2014.3790 | department = review }}</ref>
 
It has a very short half-life, between 16–24 minutes.<ref name="babar2013" />


A very similar substance, ''lysine vasopressin'' ('''LVP''') or '''lypressin''', has the same function in [[pig]]s and is often used in human therapy.
{{TOC limit|3}}


====Kidney====
==Physiology==
'''Vasopressin''' has two effects by which it contributes to increased urine osmolality (increased concentration) and decreased water excretion. These are:
{{Further |Renal physiology}}


1) Increase in the permeability to water of the cells of distal tubule and collecting duct in the kidney and thus allows water reabsorption and excretion of concentrated urine, i.e., [[antidiuretic|antidiuresis]]. This occurs through insertion of water channels ([[aquaporin|Aquaporin-2]]) into the [[apical membrane]] of the distal tubule and collecting duct epithelial cells. The aquaporins allow water to move out of the nephron, increasing the amount of water re-absorbed from the forming urine back into the bloodstream.
===Function===
Vasopressin regulates the [[tonicity]] of body fluids. It is released from the posterior pituitary in response to [[hypertonicity]] and causes the kidneys 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 concentrations may also raise blood pressure by inducing moderate [[vasoconstriction]].


[[V2 receptor]]s, [[G protein-coupled receptor]]s on the basolateral plasma membrane of the epithelial cells couple to the heterotrimeric G-protein [[Gs alpha subunit|G<sub>s</sub>]], which activates  [[adenylyl cyclase]]s III and VI to convert [[Adenosine triphosphate|ATP]] into [[Cyclic adenosine monophosphate|cAMP]], plus 2 inorganic phosphates. The rise in cAMP then triggers the insertion of aquaporin-2 water channels by exocytosis of intracellular vesicles, recycling endosomes. Vasopressin also increases the concentration of calcium in the collecting duct cells, by episodic release from intracellular stores. Vasopressin, acting through cAMP also increases transcription of the aquaporin-2 gene, thus increasing the total number of aquaporin-2 molecules in collecting duct cells.
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.<ref name="Young2004">{{cite journal | vauthors = Lim MM, Young LJ | title = Vasopressin-dependent neural circuits underlying pair bond formation in the monogamous prairie vole | journal = Neuroscience | volume = 125 | issue = 1 | pages = 35–45 | year = 2004 | pmid = 15051143 | doi = 10.1016/j.neuroscience.2003.12.008 }}</ref>


Cyclic-AMP activates [[protein kinase A]] (PKA)by binding to its regulatory subunits and allowing them to detach from the catalytic subunits.   Detachment exposes the catalytic site in the enzyme, allowing it to add phosphate groups to proteins (including the aquaporin-2 protein), which alters their functions.  
A very similar substance, ''lysine vasopressin'' ('''LVP''') or '''lypressin''', has the same function in [[pig]]s and is used in human AVP deficiency.<ref>{{Cite web|vauthors = Chapman IM, ((Professor of Medicine, Discipline of Medicine, University of Adelaide, Royal Adelaide Hospital))|url=http://www.merckmanuals.com/professional/endocrine-and-metabolic-disorders/pituitary-disorders/central-diabetes-insipidus#v26379947|title=Central Diabetes Insipidus|date=|website=MSD|publisher= Merck & Co. Inc.|access-date=}}</ref>


2) Increase in the permeability of the inner medullary portion of the collecting duct to [[urea]], allowing increased reabsorption of urea into the [[medullary interstitium]], down the concentration gradient created from the removal of water in the connecting tubule, cortical collecting duct, and outer medullary collecting duct.
====Kidney====
Vasopressin has three main effects which are


====Cardiovascular system====
# Increasing the water permeability of initial and cortical collecting tubules (ICT & CCT), as well as outer and inner medullary collecting duct (OMCD & IMCD) in the kidney, thus allowing water reabsorption and excretion of more concentrated urine, i.e., [[antidiuretic|antidiuresis]]. This occurs through increased transcription and insertion of water channels ([[aquaporin|Aquaporin-2]]) into the [[apical membrane]] of collecting tubule and collecting duct epithelial cells. <ref>{{cite book | title = Medical Physiology | vauthors = Boron WR, Boulpaep EL | isbn = 978-1-4557-4377-3 | edition = Third | location = Philadelphia, PA | oclc = 951680737 |date = 2016-05-05}}</ref> Aquaporins allow water to move down their osmotic gradient and out of the nephron, increasing the amount of water re-absorbed from the filtrate (forming urine) back into the bloodstream. Important for bowen students, this effect is mediated by [[V2 receptor]]s. Vasopressin also increases the concentration of calcium in the collecting duct cells, by episodic release from intracellular stores.  Vasopressin, acting through cAMP, also increases transcription of the aquaporin-2 gene, thus increasing the total number of aquaporin-2 molecules in collecting duct cells.{{citation needed|date=March 2017}}
Vasopressin increases peripheral vascular resistance and thus increases arterial [[blood pressure]]. This effect appears small in healthy individuals; however it becomes an important compensatory mechanism for restoring blood pressure in [[hypovolemic shock]] such as that which occurs during hemorrhage.
# Increasing permeability of the inner medullary portion of the collecting duct to [[urea]] by regulating the cell surface expression of [[urea transporter]]s,<ref name="pmid21686211">{{cite journal | vauthors = Sands JM, Blount MA, Klein JD | title = Regulation of renal urea transport by vasopressin | journal = Transactions of the American Clinical and Climatological Association | volume = 122 | issue =  | pages = 82–92 | year = 2011 | pmid = 21686211 | pmc = 3116377 | doi =  }}</ref> which facilitates its reabsorption into the [[medullary interstitium]] as it travels down the concentration gradient created by removing water from the [[connecting tubule]], [[cortical collecting duct]], and [[outer medullary collecting duct]].
# Acute increase of [[sodium]] absorption across the ascending [[loop of henle]]. This adds to the [[countercurrent multiplication]] which aids in proper water reabsorption later in the [[distal tubule]] and [[collecting duct]].<ref name="pmid10073614">{{cite journal | vauthors = Knepper MA, Kim GH, Fernández-Llama P, Ecelbarger CA | title = Regulation of thick ascending limb transport by vasopressin | journal = Journal of the American Society of Nephrology | volume = 10 | issue = 3 | pages = 628–34 | date = March 1999 | pmid = 10073614 | doi =  }}</ref>


====Central nervous system====
====Central nervous system====
Vasopressin released within the brain has many actions:
* It has been implicated in [[memory]] formation, including delayed reflexes, image, short- and long-term memory, though the mechanism remains unknown; these findings are controversial.  However, the synthetic [[vasopressin analogue]] [[desmopressin]] has come to interest as a likely [[nootropic]].


* Vasopressin is released into the brain in a [[circadian rhythm]] by neurons of the [[supraoptic nucleus]].
Vasopressin released within the brain may have several actions:
* Vasopressin is released into the brain in a [[circadian rhythm]] by neurons of the [[suprachiasmatic nucleus]].<ref>{{cite journal | vauthors = Forsling ML, Montgomery H, Halpin D, Windle RJ, Treacher DF | title = Daily patterns of secretion of neurohypophysial hormones in man: effect of age | journal = Experimental Physiology | volume = 83 | issue = 3 | pages = 409–18 | date = May 1998 | pmid = 9639350 }}</ref>
* Vasopressin released from centrally projecting hypothalamic neurons is involved in aggression, blood pressure regulation, and temperature regulation.{{citation needed|date=May 2014}}-->
*Recent evidence suggests that vasopressin may have analgesic effects.  The analgesia effects of vasopressin were found to be dependent on both stress and sex.<ref name="pmid22119947">{{cite journal | vauthors = Wiltshire T, Maixner W, Diatchenko L | title = Relax, you won't feel the pain | journal = Nature Neuroscience | volume = 14 | issue = 12 | pages = 1496–7 | date = December 2011 | pmid = 22119947 | doi = 10.1038/nn.2987 }}</ref>
 
===Regulation===
<!--The pituitary gland releases vasopressin  [[posterior pituitary gland|gland]]<nowiki/>in response to reductions in [[blood plasma|plasma]] voes in the [[plasma osmolality]], and in response to [[cholecystokinin]] (CCK) secreted by the [[small intestine]]:


* Vasopressin released from centrally-projecting hypothalamic neurons is involved in aggression, blood pressure regulation and temperature regulation.
* Secretion ''in response to reduced plasma volume'' is activated by [[baroreceptor|pressure receptors]] (baroreceptors) in the [[vein]]s, [[atrium (anatomy)|atria]], and [[carotid sinus]]es.{{citation needed|date=February 2016}}
* Secretion ''in response to increases in plasma osmotic pressure'' is mediated by [[osmoreceptor]]s in the [[hypothalamus]].{{citation needed|date=February 2016}}
* Secretion ''in response to increases in plasma CCK'' is mediated by an unknown pathway.{{citation needed|date=February 2016}}


*Selective AVPr1a blockade in the ventral pallidum has been shown to prevent partner preference, suggesting that these receptors in this ventral forebrain region are crucial for pair bonding.<ref name="Young2004"/>
The neurons that make AVP, in the hypothalamic [[supraoptic nucleus|supraoptic nuclei]] (SON) and [[paraventricular nucleus|paraventricular nuclei]] (PVN), are themselves osmoreceptors, but they also receive synaptic input from other osmoreceptors located in regions adjacent to the anterior wall of the third ventricle. These regions include the [[organum vasculosum of the lamina terminalis]] and the [[subfornical organ]].{{cn}}-->


In recent years, there has been particular interest in the role of vasopressin in social behavior. It is thought that vasopressin, released into the brain during sexual activity, initiates and sustains patterns of activity that support the pair-bond between the sexual partners; in particular, vasopressin seems to induce the male to become aggressive towards other males.<ref name="ReferenceA">{{cite journal |author=Young LJ |title=The neuroendocrinology of the social brain |journal=Front Neuroendocrinol |volume=30 |issue=4 |pages=425–8 |year=2009 |month=October |pmid=19596026 |doi=10.1016/j.yfrne.2009.06.002 |url=http://linkinghub.elsevier.com/retrieve/pii/S0091-3022(09)00041-7}}</ref>
Many factors influence the secretion of vasopressin:
* [[Ethanol]] (alcohol) reduces the calcium-dependent secretion of AVP by blocking voltage-gated calcium channels in neurohypophyseal nerve terminals in rats.<ref>{{cite journal | vauthors = Wang XM, Dayanithi G, Lemos JR, Nordmann JJ, Treistman SN | title = Calcium currents and peptide release from neurohypophysial terminals are inhibited by ethanol | journal = The Journal of Pharmacology and Experimental Therapeutics | volume = 259 | issue = 2 | pages = 705–11 | date = November 1991 | pmid = 1941619 }}</ref>
Evidence for this comes from experimental studies in several species, which indicate that the precise distribution of vasopressin and vasopressin receptors in the brain is associated with species-typical patterns of social behavior. In particular, there are consistent differences between monogamous species and promiscuous species in the distribution of AVP receptors, and sometimes in the distribution of vasopressin-containing axons, even when closely-related species are compared.<ref name="ReferenceA"/> Moreover, studies involving either injecting AVP agonists into the brain or blocking the actions of AVP support the hypothesis that vasopressin is involved in aggression towards other males. There is also evidence that differences in the AVP receptor gene between individual members of a species might be predictive of differences in social behavior.
* [[Angiotensin]] II stimulates AVP secretion, in keeping with its general pressor and pro-volumic effects on the body.<ref name="Matsukawa">{{cite journal | vauthors = Matsukawa T, Miyamoto T | title = Angiotensin II-stimulated secretion of arginine vasopressin is inhibited by atrial natriuretic peptide in humans | journal = American Journal of Physiology. Regulatory, Integrative and Comparative Physiology | volume = 300 | issue = 3 | pages = R624–9 | date = March 2011 | pmid = 21123762 | doi = 10.1152/ajpregu.00324.2010 }}</ref>
One study has suggested that genetic variation in male humans effects pair-bonding behavior. The brain of males uses vasopressin as a reward for forming lasting bonds with a mate, and men with one or two of the genetic alleles are more likely to experience marital discord.  The partners of the men with two of the alleles affecting vasopressin reception state disappointing levels of satisfaction, affection, and cohesion.<ref name="pmid18765804">{{cite journal | author = Walum H, Westberg L, Henningsson S, Neiderhiser JM, Reiss D, Igl W, Ganiban JM, Spotts EL, Pedersen NL, Eriksson E, Lichtenstein P | title = Genetic variation in the vasopressin receptor 1a gene (AVPR1A) associates with pair-bonding behavior in humans | journal = Proc. Natl. Acad. Sci. U.S.A. | volume = 105 | issue = 37 | pages = 14153–6 | year = 2008 | month = September | pmid = 18765804 | pmc = 2533683 | doi = 10.1073/pnas.0803081105 | url = | issn = }}</ref>
*[[Atrial natriuretic peptide]] inhibits AVP secretion, in part by inhibiting Angiotensin II-induced stimulation of AVP secretion.<ref name="Matsukawa"/>
Vasopressin receptors distributed along the reward circuit pathway, to be specific in the ventral pallidum, are activated when AVP is released during social interactions such as mating, in monogamous prairie voles. The activation of the reward circuitry reinforces this behavior, leading to conditioned partner preference, and thereby initiates the formation of a pair bond.<ref name="Pitkow(2001)">{{cite journal | author = LJ Pitkow, CA Sharer, X Ren, TR Insel, EF Terwilliger, and LJ Young| title = Facilitation of affiliation and pair-bond formation by vasopressin receptor gene transfer into the ventral forebrain of a monogamous vole| journal = Neuroscience | volume = 21| issue = 18| pages = 7392–7396 | year = 2001 | month = | pmid = 11549749 | pmc =  | doi =    | url = http://www.ncbi.nlm.nih.gov/pubmed/11549749?itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum&ordinalpos=2 | issn = }}</ref>
*[[Cortisol]] inhibits secretion of antidiuretic hormone.<ref>{{cite book|author=Collège des enseignants d'endocrinologie, diabète et maladie|title=Endocrinologie, diabétologie et maladies métaboliques|date=2012-01-30|publisher=Elsevier Masson|isbn=978-2-294-72233-2}}</ref>


===Control===
===Production and secretion===
Vasopressin is secreted from the [[posterior pituitary gland]] in response to reductions in [[blood plasma|plasma]] volume, in response to increases in the [[plasma osmolality]], and in response to [[cholecystokinin]] by the [[small intestine]]:
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.


* Secretion ''in response to reduced plasma volume'' is activated by [[baroreceptor|pressure receptors]] in the [[vein]]s, [[atrium (anatomy)|atria]], and [[carotid]]s.
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 neuron]]s in the [[Paraventricular nucleus of hypothalamus]] (PVN) and [[Supraoptic nucleus]] (SON). It then travels down the axon through the [[Pituitary stalk|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.
* Secretion ''in response to increases in plasma osmotic pressure'' is mediated by [[osmoreceptor]]s in the [[hypothalamus]].
* Secretion ''in response to increases in plasma [[cholecystokinin]]'' is mediated by an unknown pathway.


The neurons that make AVP, in the hypothalamic [[supraoptic nucleus|supraoptic nuclei]] (SON) and [[paraventricular nucleus|paraventricular nuclei]] (PVN), are themselves osmoreceptors, but they also receive synaptic input from other osmoreceptors located in regions adjacent to the anterior wall of the third ventricle. These regions include the [[organum vasculosum of the lamina terminalis]] and the [[subfornical organ]].
There are other sources of AVP, beyond the hypothalamic magnocellular neurons.  For example, AVP is also synthesized by [[Parvocellular neurosecretory cell|parvocellular neurosecretory neurons]] of the PVN, transported and released at the [[median eminence]], from which it travels through the [[hypophyseal portal system]] to the anterior pituitary, where it stimulates [[corticotropic cell]]s synergistically with CRH to produce ACTH (by itself it is a weak secretagogue).<ref name="pmid2830315">{{cite journal | vauthors = Salata RA, Jarrett DB, Verbalis JG, Robinson AG | title = Vasopressin stimulation of adrenocorticotropin hormone (ACTH) in humans. In vivo bioassay of corticotropin-releasing factor (CRF) which provides evidence for CRF mediation of the diurnal rhythm of ACTH | journal = The Journal of Clinical Investigation | volume = 81 | issue = 3 | pages = 766–74 | date = March 1988 | pmid = 2830315 | pmc = 442524 | doi = 10.1172/JCI113382 }}</ref>


Many factors influence the secretion of vasopressin:
=== Vasopressin during surgery and anaesthesia ===
* [[Ethanol]] (alcohol) acts as an antagonist for AVP in the collecting ducts of the kidneys, which prevents aquaporins from binding to the collecting ducts, and prevents water reabsorption.
Vasopressin is used for measurement of [[surgical stress]] at evaluation of surgical techniques. Plasma vasopressin concentration is elevated at noxious stimuli,<ref>{{cite journal | vauthors = Day TA, Sibbald JR | title = Noxious somatic stimuli excite neurosecretory vasopressin cells via A1 cell group | journal = The American Journal of Physiology | volume = 258 | issue = 6 Pt 2 | pages = R1516–20 | date = June 1990 | pmid = 2360697 | doi = 10.1152/ajpregu.1990.258.6.R1516 }}</ref> predominantly during abdominal surgery,<ref>{{cite journal | vauthors = Goldmann A, Hoehne C, Fritz GA, Unger J, Ahlers O, Nachtigall I, Boemke W | title = Combined vs. Isoflurane/Fentanyl anesthesia for major abdominal surgery: Effects on hormones and hemodynamics | journal = Medical Science Monitor | volume = 14 | issue = 9 | pages = CR445–52 | date = September 2008 | pmid = 18758414 }}</ref><ref>{{cite journal | vauthors = Furuya K, Shimizu R, Hirabayashi Y, Ishii R, Fukuda H | title = Stress hormone responses to major intra-abdominal surgery during and immediately after sevoflurane-nitrous oxide anaesthesia in elderly patients | journal = Canadian Journal of Anaesthesia = Journal Canadien d'Anesthesie | volume = 40 | issue = 5 Pt 1 | pages = 435–9 | date = May 1993 | pmid = 8390330 | doi = 10.1007/BF03009513 }}</ref><ref>{{cite journal | vauthors = Haas M, Glick SM | title = Radioimmunoassayable plasma vasopressin associated with surgery | journal = Archives of Surgery | volume = 113 | issue = 5 | pages = 597–600 | date = May 1978 | pmid = 646620 }}</ref> especially at gut manipulation and traction of viscera.<ref>{{cite journal | vauthors = Nussey SS, Page SR, Ang VT, Jenkins JS | title = The response of plasma oxytocin to surgical stress | journal = Clinical Endocrinology | volume = 28 | issue = 3 | pages = 277–82 | date = March 1988 | pmid = 3168310 }}</ref><ref>{{cite journal | vauthors = Melville RJ, Forsling ML, Frizis HI, LeQuesne LP | title = Stimulus for vasopressin release during elective intra-abdominal operations | journal = The British Journal of Surgery | volume = 72 | issue = 12 | pages = 979–82 | date = December 1985 | pmid = 4084755 }}</ref><ref>{{cite journal | vauthors = Moran WH, Miltenberger FW, Shuayb WA, Zimmermann B | title = THE RELATIONSHIP OF ANTIDIURETIC HORMONE SECRETION TO SURGICAL STRESS | journal = Surgery | volume = 56 | pages = 99–108 | date = July 1964 | pmid = 14175989 }}</ref>  
* [[Angiotensin]] II ''may stimulate'' the secretion of AVP.<ref name="isbn0-07-067009-9">{{cite book | author = Vander, Arthur J. | authorlink = | editor = | others = | title = Renal physiology | edition = 5th| language = | publisher = McGraw-Hill, Health Professions Division | location = New York | year = 1995 | origyear = | pages = | quote = | isbn = 0-07-067009-9 | oclc = | doi = | url = | accessdate = }}</ref>


===Secretion===
In a study on dogs, plasma vasopressin concentration increased at removal of both ovaries, with a 15 minute pause between ovary removal. Blood pressure and vasopressin concentrations changed in parallel at use of z‐scores (standard scores) for comparison.<ref>{{cite journal | vauthors = Höglund OV, Hagman R, Olsson K, Olsson U, Lagerstedt AS | title = Intraoperative changes in blood pressure, heart rate, plasma vasopressin, and urinary noradrenalin during elective ovariohysterectomy in dogs: repeatability at removal of the 1st and 2nd ovary | journal = Veterinary Surgery | volume = 43 | issue = 7 | pages = 852–9 | date = October 2014 | pmid = 25130060 | doi = 10.1111/j.1532-950X.2014.12264.x }}</ref>
The main stimulus for secretion of vasopressin is increased osmolality of plasma. Reduced volume of extracellular fluid also has this effect, but is a less sensitive mechanism.  
In a human study, two different approaches for lumbar spine surgery were compared. An intraoperative increase of vasopressin levels was observed in one of the groups and this group required more postoperative analgesics.<ref>{{cite journal | vauthors = Yoo KY, Lee MK, Jeong CW, Kim SJ, Jeong ST, Shin MH, Lee JK, Lee J | title = Anaesthetic requirement and stress hormone responses in patients undergoing lumbar spine surgery: anterior vs. posterior approach | journal = Acta Anaesthesiologica Scandinavica | volume = 53 | issue = 8 | pages = 1012–7 | date = September 2009 | pmid = 19426236 | doi = 10.1111/j.1399-6576.2009.01993.x }}</ref>


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). However there are two other sources of AVP with important local effects:
[[File:Blood pressure and Vasopressin at removal of ovaries, Z-scores.jpg|thumb|Z‐scores (standard scores) for blood pressure and plasma vasopressin in 10 dogs subjected to ovariohysterectomy.<ref>{{cite journal | vauthors = Höglund OV, Hagman R, Olsson K, Olsson U, Lagerstedt AS | title = Intraoperative changes in blood pressure, heart rate, plasma vasopressin, and urinary noradrenalin during elective ovariohysterectomy in dogs: repeatability at removal of the 1st and 2nd ovary | journal = Veterinary Surgery | volume = 43 | issue = 7 | pages = 852–9 | date = October 2014 | pmid = 25130060 | doi = 10.1111/j.1532-950X.2014.12264.x }}</ref> Blood pressure and vasopressin concentrations changed in parallel. Sample 1, before incision, sample 2 was collected ''before'' removal of the 1st ovary, sample 3 after removal of the 1st ovary, sample 4 after a pause and ''before'' removal of the 2nd ovary, sample 5 after removal of the 2nd ovary. Z‐scores compare and illustrate various variables and how data points deviate from the mean by use of each variable's standard deviations.<ref>{{cite book |last1=Kirkwood |first1=Betty |last2=Sterne |first2=Jonathan | name-list-format = vanc |title=Essential Medical Statistics | edition = 2nd |publisher=Blackwell Publishing |isbn=978-0-865-42871-3 |url=https://www.wiley.com/en-se/Essential+Medical+Statistics,+2nd+Edition-p-9780865428713 |language=en-se}}</ref> ]]
*Vasopressin is produced in the [[Paraventricular nucleus of hypothalamus|PVN]] and [[Supraoptic nucleus|SON]] and travels down the axons through the [[Pituitary stalk|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.
* Vasopressin is also released into the brain by several different populations of smaller neurons (see below).


=== Receptors ===
=== Receptors ===


Below is a table summarizing some of the actions of AVP at its three receptors, differently expressed in different tissues and exerting different actions:
The following describes the actions of AVP:


{| class="wikitable"
{| class="wikitable"
| '''Type''' || '''[[Second messenger system]] ''' || '''Locations''' || '''Actions'''
| '''Type''' || '''[[Second messenger system]] ''' || '''Locations''' || '''Actions'''
|'''Agonists'''
|'''Antagonists'''
  |-  
  |-  
  | [[Arginine vasopressin receptor 1A|AVPR1A]] || [[phosphatidylinositol]]/[[calcium]] || [[liver]], [[kidney]], peripheral vasculature, [[brain]] ||  [[vasoconstriction]], [[gluconeogenesis]], [[platelet]] aggregation, and release of [[factor VIII]] and [[von Willebrand factor]]; social recognition,<ref name="pmid14647484">{{cite journal | author = Bielsky IF, Hu SB, Szegda KL, Westphal H, Young LJ | title = Profound impairment in social recognition and reduction in anxiety-like behavior in vasopressin V1a receptor knockout mice | journal = Neuropsychopharmacology | volume = 29 | issue = 3 | pages = 483–93 | year = 2004 | month = March | pmid = 14647484 | doi = 10.1038/sj.npp.1300360 }}</ref> circadian tau<ref>{{cite journal |author=Wersinger SR, Caldwell HK, Martinez L, Gold P, Hu SB, Young WS |title=Vasopressin 1a receptor knockout mice have a subtle olfactory deficit but normal aggression |journal=[[Genes, Brain and Behavior]] |volume=6 |issue=6 |pages=540–51 |year=2007 |month=August |pmid=17083331 |doi=10.1111/j.1601-183X.2006.00281.x }}</ref>
  | [[Arginine vasopressin receptor 1A|AVPR1A]] || [[Phosphatidylinositol]]/[[calcium]] || [[Liver]], [[kidney]], peripheral vasculature, [[brain]] ||  [[Vasoconstriction]], [[gluconeogenesis]], [[platelet]] aggregation, and release of [[factor VIII]] and [[von Willebrand factor]]; social recognition,<ref name="pmid14647484">{{cite journal | vauthors = Bielsky IF, Hu SB, Szegda KL, Westphal H, Young LJ | title = Profound impairment in social recognition and reduction in anxiety-like behavior in vasopressin V1a receptor knockout mice | journal = Neuropsychopharmacology | volume = 29 | issue = 3 | pages = 483–93 | date = March 2004 | pmid = 14647484 | doi = 10.1038/sj.npp.1300360 }}</ref> circadian tau<ref name="pmid17083331">{{cite journal | vauthors = Wersinger SR, Caldwell HK, Martinez L, Gold P, Hu SB, Young WS | title = Vasopressin 1a receptor knockout mice have a subtle olfactory deficit but normal aggression | journal = Genes, Brain, and Behavior | volume = 6 | issue = 6 | pages = 540–51 | date = August 2007 | pmid = 17083331 | doi = 10.1111/j.1601-183X.2006.00281.x }}</ref>
|[[Felypressin]]
|
  |-  
  |-  
  | [[Arginine vasopressin receptor 1B|AVPR1B]] || [[phosphatidylinositol]]/[[calcium]] || [[pituitary gland]], [[brain]] || [[adrenocorticotropic hormone]] secretion in response to stress;<ref name="pmid17122081">{{cite journal | author = Lolait SJ, Stewart LQ, Jessop DS, Young WS, O'Carroll AM | title = The hypothalamic-pituitary-adrenal axis response to stress in mice lacking functional vasopressin V1b receptors | journal = Endocrinology | volume = 148 | issue = 2 | pages = 849–56 | year = 2007 | month = February | pmid = 17122081 | pmc = 2040022 | doi = 10.1210/en.2006-1309 }}</ref> social interpretation of olfactory cues<ref name="pmid15555506">{{cite journal | author = Wersinger SR, Kelliher KR, Zufall F, Lolait SJ, O'Carroll AM, Young WS | title = Social motivation is reduced in vasopressin 1b receptor null mice despite normal performance in an olfactory discrimination task | journal = Horm Behav | volume = 46 | issue = 5 | pages = 638–45 | year = 2004 | month = December | pmid = 15555506 | doi = 10.1016/j.yhbeh.2004.07.004 }}</ref>
  | [[Arginine vasopressin receptor 1B|AVPR1B or AVPR3]] || [[Phosphatidylinositol]]/[[calcium]] || [[Pituitary gland]], [[brain]] || [[Adrenocorticotropic hormone]] secretion in response to stress;<ref name="pmid17122081">{{cite journal | vauthors = Lolait SJ, Stewart LQ, Jessop DS, Young WS, O'Carroll AM | title = The hypothalamic-pituitary-adrenal axis response to stress in mice lacking functional vasopressin V1b receptors | journal = Endocrinology | volume = 148 | issue = 2 | pages = 849–56 | date = February 2007 | pmid = 17122081 | pmc = 2040022 | doi = 10.1210/en.2006-1309 }}</ref> social interpretation of olfactory cues<ref name="pmid15555506">{{cite journal | vauthors = Wersinger SR, Kelliher KR, Zufall F, Lolait SJ, O'Carroll AM, Young WS | title = Social motivation is reduced in vasopressin 1b receptor null mice despite normal performance in an olfactory discrimination task | journal = Hormones and Behavior | volume = 46 | issue = 5 | pages = 638–45 | date = December 2004 | pmid = 15555506 | doi = 10.1016/j.yhbeh.2004.07.004 }}</ref>
|
|
  |-  
  |-  
  | [[Arginine vasopressin receptor 2|AVPR2]] || [[adenylate cyclase]]/[[Cyclic adenosine monophosphate|cAMP]] || basolateral membrane of the cells lining the [[collecting duct]]s of the kidneys (especially the cortical and outer medullary collecting ducts) || insertion of [[aquaporin-2]] (AQP2) channels (water channels). This allows water to be reabsorbed down an osmotic gradient, and so the urine is more concentrated. Release of [[von Willebrand factor]] and surface expression of [[P-selectin]] through exocytosis of [[Weibel-Palade bodies]] from [[endothelial cells]]<ref name="pmid7545469">{{cite journal | author = Kanwar S, Woodman RC, Poon MC, Murohara T, Lefer AM, Davenpeck KL, Kubes P | title = Desmopressin induces endothelial P-selectin expression and leukocyte rolling in postcapillary venules | journal = Blood | volume = 86 | issue = 7 | pages = 2760–6 | date=1 October 1995| pmid = 7545469 | url = http://bloodjournal.hematologylibrary.org/cgi/reprint/86/7/2760 | issn = }}</ref><ref name="pmid10880054">{{cite journal | author = Kaufmann JE, Oksche A, Wollheim CB, Günther G, Rosenthal W, Vischer UM | title = Vasopressin-induced von Willebrand factor secretion from endothelial cells involves V2 receptors and cAMP | journal = J. Clin. Invest. | volume = 106 | issue = 1 | pages = 107–16 | year = 2000 | month = July | pmid = 10880054 | pmc = 314363 | doi = 10.1172/JCI9516 }}</ref>
  | [[Arginine vasopressin receptor 2|AVPR2]] || [[Adenylate cyclase]]/[[Cyclic adenosine monophosphate|cAMP]] || Basolateral membrane of the cells lining the [[collecting duct]]s of the kidneys (especially the cortical and outer medullary collecting ducts) || Insertion of [[aquaporin-2]] (AQP2) channels (water channels). This allows water to be reabsorbed down an osmotic gradient, and so the urine is more concentrated. Release of [[von Willebrand factor]] and surface expression of [[P-selectin]] through exocytosis of [[Weibel-Palade bodies]] from [[endothelial cells]]<ref name="pmid7545469">{{cite journal | vauthors = Kanwar S, Woodman RC, Poon MC, Murohara T, Lefer AM, Davenpeck KL, Kubes P | title = Desmopressin induces endothelial P-selectin expression and leukocyte rolling in postcapillary venules | journal = Blood | volume = 86 | issue = 7 | pages = 2760–6 | date = October 1995 | pmid = 7545469 | url = http://bloodjournal.hematologylibrary.org/cgi/reprint/86/7/2760 }}</ref><ref name="pmid10880054">{{cite journal | vauthors = Kaufmann JE, Oksche A, Wollheim CB, Günther G, Rosenthal W, Vischer UM | title = Vasopressin-induced von Willebrand factor secretion from endothelial cells involves V2 receptors and cAMP | journal = The Journal of Clinical Investigation | volume = 106 | issue = 1 | pages = 107–16 | date = July 2000 | pmid = 10880054 | pmc = 314363 | doi = 10.1172/JCI9516 }}</ref>
|-
|AVP, [[desmopressin]]
| [[CUL5|VACM-1]] || [[phosphatidylinositol]]/[[calcium]] || vascular [[endothelium]] and renal [[collecting tubules]] || Increases cytosolic calcium and acts as an inverse agonist of cAMP accumulation <ref name="pmid7545469">{{cite journal | author = Buchwalter A, Van Dort C, Schultz S, Smith R, Le IP, Abbott JL, Oosterhouse E, Johnson AE, Hansen-Smith F, Burnatowska-Hledin M. | title = Expression of VACM-1/cul5 mutant in endothelial cells induces MAPK phosphorylation and maspin degradation and converts cells to the angiogenic phenotype. | journal = Microvas. Res. | volume = 75 | issue = 2 | pages = 155–68 | year = 2007 | month = September | pmid = 17950367 | url = http://www.ncbi.nlm.nih.gov/pubmed/17950367?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum | doi = 10.1016/j.mvr.2007.08.004 }}</ref>
|"-vaptan" diuretics, i.e. [[tolvaptan]]
|}
|}


==Structure and relation to oxytocin==
===Structure and relation to oxytocin===
[[File:vasopressin labeled.png|thumb|right|Chemical structure of argipressin]]
[[File:vasopressin labeled.png|thumb|right|Chemical structure of the arginine vasopressin (argipressin) with an [[arginine]] at the 8th [[amino acid]] positionLysine vasopressin differs only in having a [[lysine]] in this position.]]
The vasopressins are [[peptide]]s consisting of nine [[amino acid]]s (nonapeptides). (NB: the value in the table above of 164 amino acids is that obtained before the hormone is activated by cleavage)The amino acid sequence of arginine vasopressin is [[cysteine|Cys]]-[[tyrosine|Tyr]]-[[Phenylalanine|Phe]]-[[glutamine|Gln]]-[[asparagine|Asn]]-[[Cysteine|Cys]]-[[proline|Pro]]-[[arginine|Arg]]-[[glycine|Gly]], with the cysteine residues forming a [[sulfur bridge]]. Lysine vasopressin has a [[lysine]] in place of the arginine.
[[File:Oxytocin with labels.png|thumb|left|Chemical structure of [[oxytocin]]]]


The structure of [[oxytocin]] is very similar to that of the vasopressins: It is also a nonapeptide with a disulfide bridge and its amino acid sequence differs at only two positions (see table below). The two genes are located on the same chromosome separated by a relatively small distance of less than 15,000 bases in most species. The [[Magnocellular neurosecretory cell|magnocellular neurons]] that make vasopressin are adjacent to magnocellular neurons that make oxytocin, and are similar in many respects.
The vasopressins are [[peptide]]s consisting of nine [[amino acid]]s (nonapeptides). (NB: the value in the table above of 164 amino acids is that obtained before the hormone is activated by cleavage.)  The amino acid sequence of arginine vasopressin (argipressin) is [[cysteine|Cys]]-[[tyrosine|Tyr]]-[[Phenylalanine|Phe]]-[[glutamine|Gln]]-[[asparagine|Asn]]-[[Cysteine|Cys]]-[[proline|Pro]]-[[arginine|Arg]]-[[glycine|Gly]]-NH<sub>2</sub>, with the cysteine residues forming a [[disulfide bond]] and the ''C''-terminus of the sequence converted to a [[primary amide]].<ref>{{cite book|url=https://books.google.com/?id=BBLRUI4aHhkC&pg=PA1833&dq=vasopressin+oxytocin+amino+acid+sequence#v=onepage&q=vasopressin%20oxytocin%20amino%20acid%20sequence&f=false|title=Tietz Textbook of Clinical Chemistry and Molecular Diagnostics|last1=Burtis|first1=Carl A.|last2=Ashwood|first2=Edward R.|last3=Bruns|first3=David E. | name-list-format = vanc |publisher=[[Elsevier Health Sciences]]|year=2012|isbn=978-1-4557-5942-2|edition=5th|page=1833 }}</ref>  Lysine vasopressin (lypressin) has a [[lysine]] in place of the arginine as the eighth amino acid, and is found in [[pig]]s and some related animals, whereas arginine vasopressin is found in humans.<ref>{{cite book |doi=10.1016/B978-0-7506-0167-2.50010-8 |chapter=Polyuria and Disorders of Thirst |chapterurl={{Google books|P3XbAgAAQBAJ|page=76|plainurl=yes}} |title=Scientific Foundations of Biochemistry in Clinical Practice |edition=2nd |pages=76–102 |year=1994 |publisher=[[Butterworth-Heinemann]] |last1=Donaldson |first1=David |isbn=978-0-7506-0167-2 |editor1-last=Williams |editor1-first=David L. |editor2-last=Marks |editor2-first=Vincent |name-list-format=vanc }}</ref>
The similarity of the two peptides can cause some cross-reactions: oxytocin has a slight antidiuretic function, and high levels of AVP can cause uterine contractions.{{Citation needed|date=April 2010}}


Here is a table showing the superfamily of vasopressin and oxytocin neuropeptides:
The structure of [[oxytocin]] is very similar to that of the vasopressins: It is also a nonapeptide with a disulfide bridge and its amino acid sequence differs at only two positions (see table below). The two genes are located on the same chromosome separated by a relatively small distance of less than 15,000 bases in most species. The [[Magnocellular neurosecretory cell|magnocellular neurons]] that secrete vasopressin are adjacent to magnocellular neurons that secrete oxytocin, and are similar in many respects. The similarity of the two peptides can cause some cross-reactions: oxytocin has a slight antidiuretic function, and high levels of AVP can cause uterine contractions.<ref name="pmid18057218">{{cite journal|date=February 2008|title=Molecular mechanisms of antidiuretic effect of oxytocin|journal=Journal of the American Society of Nephrology|volume=19|issue=2|pages=225–32|doi=10.1681/ASN.2007010029|pmc=2396735|pmid=18057218|vauthors=Li C, Wang W, Summer SN, Westfall TD, Brooks DP, Falk S, Schrier RW}}</ref><ref name="pmid15280526">{{cite journal|date=October 2004|title=Antidiuretic action of oxytocin is associated with increased urinary excretion of aquaporin-2|journal=Nephrology, Dialysis, Transplantation|volume=19|issue=10|pages=2480–6|doi=10.1093/ndt/gfh413|pmid=15280526|vauthors=Joo KW, Jeon US, Kim GH, Park J, Oh YK, Kim YS, Ahn C, Kim S, Kim SY, Lee JS, Han JS}}</ref>


<blockquote style="background: white; border: 1px solid black">
Below is a table showing the superfamily of vasopressin and oxytocin neuropeptides:


{| style= cellpadding="2"
{| class="wikitable" width="80%"
!colspan="3" | '''[[Vertebrate]] Vasopressin Family'''
! colspan="3" | '''[[Vertebrate]] Vasopressin Family'''
|-
|-
|style="width:300px" |Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2 || [[Argipressin]] (AVP, ADH) || Most [[mammal]]s
| style="width:25em" |Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH<sub>2</sub> || [[Argipressin]] (AVP, ADH) || Most [[mammal]]s
|-
|-
|Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Lys-Gly-NH2 || [[Lypressin]] (LVP) || [[Pig]]s, [[hippopotamus|hippos]], [[warthog]]s, some [[marsupial]]s
|Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Lys-Gly-NH<sub>2</sub> || [[Lypressin]] (LVP) || [[Pig]]s, [[hippopotamus|hippos]], [[warthog]]s, some [[marsupial]]s
|-
|-
|Cys-Phe-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2 || [[Phenypressin]] || Some [[marsupial]]s
|Cys-Phe-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH<sub>2</sub> || [[Phenypressin]] || Some [[marsupial]]s
|-
|-
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Arg-Gly-NH2 || [[Vasotocin]]† || Non-mammals
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Arg-Gly-NH<sub>2</sub> || [[Vasotocin]]† || Non-mammals
|-
|-
!colspan="3" | '''Vertebrate Oxytocin Family'''
! colspan="3" | '''Vertebrate Oxytocin Family'''
|-
|-
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 || [[Oxytocin]] (OXT) || Most mammals, [[ratfish]]
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH<sub>2</sub> || [[Oxytocin]] (OXT) || Most mammals, [[ratfish]]
|-
|-
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Ile-Gly-NH2 || [[Mesotocin]] || Most marsupials, all [[bird]]s, [[reptile]]s, [[amphibian]]s, [[lungfish]]es, [[coelacanth]]s
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Pro-Gly-NH<sub>2</sub> || Prol-[[Oxytocin]] || Some [[New World monkey]]s, [[Northern Treeshrew|northern tree shrews]]
|-
|-
|Cys-Tyr-Ile-Gln-Ser-Cys-Pro-Ile-Gly-NH2 || [[Seritocin]] || [[Frog]]s
|Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Ile-Gly-NH<sub>2</sub> || [[Mesotocin]] || Most marsupials, all [[bird]]s, [[reptile]]s, [[amphibian]]s, [[lungfish]]es, [[coelacanth]]s
|-
|-
|Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Ile-Gly-NH2 || [[Isotocin]] || [[Bony fish]]es
|Cys-Tyr-Ile-Gln-Ser-Cys-Pro-Ile-Gly-NH<sub>2</sub> || [[Seritocin]] || [[Frog]]s
|-
|-
|Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Gln-Gly-NH2 || [[Glumitocin]] || [[Skate]]s
|Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Ile-Gly-NH<sub>2</sub> || [[Isotocin]] || [[Bony fish]]es
|-
|-
|Cys-Tyr-Ile-Asn/Gln-Asn-Cys-Pro-Leu/Val-Gly-NH2 || Various tocins || [[Shark]]s
|Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Gln-Gly-NH<sub>2</sub> || [[Glumitocin]] || [[Skate (fish)|skate]]s
|-
|-
!colspan="3" | '''[[Invertebrate]] VP/OT Superfamily'''
|Cys-Tyr-Ile-Asn/Gln-Asn-Cys-Pro-Leu/Val-Gly-NH<sub>2</sub> || Various tocins || [[Shark]]s
|-
|-
|Cys-Leu-Ile-Thr-Asn-Cys-Pro-Arg-Gly-NH2 || [[Diuretic Hormone]] || [[Locust]]
! colspan="3" | '''[[Invertebrate]] VP/OT Superfamily'''
|-
|-
|Cys-Phe-Val-Arg-Asn-Cys-Pro-Thr-Gly-NH2 || [[Annetocin]] || [[Earthworm]]
|Cys-Leu-Ile-Thr-Asn-Cys-Pro-Arg-Gly-NH<sub>2</sub> || [[Inotocin]] || [[Locust]]
|-
|-
|Cys-Phe-Ile-Arg-Asn-Cys-Pro-Lys-Gly-NH2 || [[Lys-Connopressin]] || Geography & imperial [[cone snail]], [[pond snail]], [[sea hare]], [[leech]]
|Cys-Phe-Val-Arg-Asn-Cys-Pro-Thr-Gly-NH<sub>2</sub> || [[Annetocin]] || [[Earthworm]]
|-
|-
|Cys-Ile-Ile-Arg-Asn-Cys-Pro-Arg-Gly-NH2 || [[Arg-Connopressin]] || Striped cone snail
|Cys-Phe-Ile-Arg-Asn-Cys-Pro-Lys-Gly-NH<sub>2</sub> || [[Lys-Connopressin]] || Geography & imperial [[cone snail]], [[pond snail]], [[sea hare]], [[leech]]
|-
|-
|Cys-Tyr-Phe-Arg-Asn-Cys-Pro-Ile-Gly-NH2 || [[Cephalotocin]] || [[Octopus]]
|Cys-Ile-Ile-Arg-Asn-Cys-Pro-Arg-Gly-NH<sub>2</sub> || [[Arg-Connopressin]] || Striped cone snail
|-
|-
|Cys-Phe-Trp-Thr-Ser-Cys-Pro-Ile-Gly-NH2 || [[Octopressin]] || Octopus
|Cys-Tyr-Phe-Arg-Asn-Cys-Pro-Ile-Gly-NH<sub>2</sub> || [[Cephalotocin]] || [[Octopus]]
|-
|-
|colspan="3" rowspan=3 | †Vasotocin is the evolutionary progenitor of all the vertebrate neurohypophysial hormones.<ref>{{cite journal |author=Acher R, Chauvet J |title=The neurohypophysial endocrine regulatory cascade: precursors, mediators, receptors, and effectors |journal=Front Neuroendocrinol |volume=16 |issue=3 |pages=237–89 |year=1995 |month=July |pmid=7556852 |doi=10.1006/frne.1995.1009 }}</ref>
|Cys-Phe-Trp-Thr-Ser-Cys-Pro-Ile-Gly-NH<sub>2</sub> || [[Octopressin]] || Octopus
|-
| colspan="3" | †Vasotocin is the evolutionary progenitor of all the vertebrate neurohypophysial hormones.<ref>{{cite journal|date=July 1995|title=The neurohypophysial endocrine regulatory cascade: precursors, mediators, receptors, and effectors|journal=Frontiers in Neuroendocrinology|volume=16|issue=3|pages=237–89|doi=10.1006/frne.1995.1009|pmid=7556852|vauthors=Acher R, Chauvet J}}</ref>
|}
|}


</blockquote>
==Medical use==
{{Main|Vasopressin (medication)}}
Vasopressin is used to manage anti-diuretic hormone deficiency. It has off-label uses and is used in the treatment of vasodilatory shock, gastrointestinal bleeding, ventricular tachycardia and ventricular fibrillation. Vasopressin is used to treat diabetes insipidus related to low levels of antiduretic hormone. It is available as Pressyn.<ref name="Davis2017">{{cite web|url=http://davisplus.fadavis.com/3976/meddeck/pdf/vasopressin.pdf|title=Vasopressin|date=2017|publisher=F.A. Davis Company|access-date=2017-03-13}}</ref>
 
Vasopressin agonists are used therapeutically in various conditions, and its long-acting synthetic analogue [[desmopressin]] is used in conditions featuring low vasopressin secretion, as well as for control of bleeding (in some forms of [[von Willebrand disease]] and in mild [[haemophilia A]]) and in extreme cases of bedwetting by children. [[Terlipressin]] and related analogues are used as [[vasoconstrictor]]s in certain conditions. Use of vasopressin analogues for [[esophageal varices]] commenced in 1970.<ref name="pmid5101576">{{cite journal | vauthors = Baum S, Nusbaum M | title = The control of gastrointestinal hemorrhage by selective mesenteric arterial infusion of vasopressin | journal = Radiology | volume = 98 | issue = 3 | pages = 497–505 | date = March 1971 | pmid = 5101576 | doi = 10.1148/98.3.497 }}</ref>
 
Vasopressin infusions are also used as second line therapy for [[septic shock]] patients not responding to fluid resuscitation or infusions of [[catecholamine]]s (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) comparing to synthetic non-arginine vasopresines with much longer elimination half-life of many hours. Further, argipressins act on V1a, V1b, and V2 reseptors which consequently lead to higher eGFR and lower vascular resistance in the lungs.  A number of injectable arginine vasopressins are currently in clinical use in the United States and in Europe.
 
===Pharmacokinetics===
Vasopressin is administered through an [[Intravenous therapy|intravenous device]], [[intramuscular injection]] or a [[subcutaneous injection]]. The [[duration of action]] depends on the mode of administration and ranges from thirty minutes to two hours. It has a [[half life]] of ten to twenty minutes. It is widely distributed throughout the body and remains in the [[extracellular fluid]]. It is degraded by the [[liver]] and excreted through the [[kidney]]s.<ref name="Davis2017" />. Arginin vasopressins for use in septic shock are intended for intravenous use only.
 
=== Side effects ===
The most common side effects during treatment with vasopressin are [[dizziness]], angina, chest pain, abdominal cramps, heartburn, nausea, vomiting, trembling, fever, water intoxication, pounding sensation in the head, diarrhea, sweating, paleness, and flatulence. The most severe adverse reactions are myocardial infarction and hypersensitivy.<ref name="Davis2017" />
 
===Contraindications===
The use of lysine vasopressin is contraindicated in the presence of hypersentivity to beef or pork proteins, increased [[BUN]] and chronic renal failure. It is recommended that it be cautiously used in instances of perioperative [[polyuria]], sensitivity to the drug, asthma, seizures, heart failure, a comatose state, migraine headaches, and cardiovascular disease.<ref name="Davis2017" />
 
===Interactions===
*[[alcohol]] - may lower the antidiuretic effect
*[[carbamazepine]], [[chloropropamide]], [[clofibrate]], [[tricyclic antidepressants]] [[fludrocortisone]] may raise the diuretic effect
*[[lithium]], [[demeclocycline]], [[heparin]] or [[norepinephrine]] may lower the antidiuretic effect
*vasopressor effect may be higher with the concurrent use of [[ganglionic blocking medications]]<ref name="Davis2017" />


==Role in disease==
==Role in disease==
Decreased vasopressin release or decreased renal sensitivity to AVP leads to [[diabetes insipidus]], a condition featuring [[hypernatremia]] (increased blood [[sodium]] concentration), [[polyuria]] (excess urine production), and [[polydipsia]] (thirst).
There may be a connection between arginine vasopressin and autism.<ref name="Carson_2015">{{cite journal|year=2015|title=Arginine Vasopressin Is a Blood-Based Biomarker of Social Functioning in Children with Autism|journal=PLoS One|volume=10|issue=7|pages=e0132224|doi=10.1371/journal.pone.0132224|pmc=4511760|pmid=26200852|laysource=Scientific American|vauthors=Carson DS, Garner JP, Hyde SA, Libove RA, Berquist SW, Hornbeak KB, Jackson LP, Sumiyoshi RD, Howerton CL, Hannah SL, Partap S, Phillips JM, Hardan AY, Parker KJ|laysummary=https://www.scientificamerican.com/article/vasopressin-emerges-as-hormone-of-interest-in-autism-research/|bibcode=2015PLoSO..1032224C}}</ref>


High levels of AVP secretion ([[syndrome of inappropriate antidiuretic hormone]], SIADH) and resultant [[hyponatremia]] (low blood sodium levels) occurs in [[brain]] diseases and conditions of the [[lung]]s ([[Small cell lung carcinoma]]). In the [[perioperative]] period, the effects of surgical stress and some commonly used medications (e.g., [[opiates]], [[syntocinon]], [[anti-emetic]]s) lead to a similar state of excess vasopressin secretion. This may cause mild hyponatremia for several days.
===Deficiency===
Decreased AVP release (neurogenic&nbsp;— i.e. due to alcohol intoxication or tumour) or decreased renal sensitivity to AVP (nephrogenic, i.e. by mutation of V2 receptor or AQP) leads to [[diabetes insipidus]], a condition featuring [[hypernatremia]] (increased blood [[sodium]] concentration), [[polyuria]] (excess urine production), and [[polydipsia]] (thirst).


Hyponatremia can be treated pharmaceutically through the use of [[vasopressin receptor antagonist]]s. These include the approved drug Vaprisol and the phase III drug [[lixivaptan]].
===Excess===
<!--High levels of vasopressin secretion may lead to [[hyponatremia]]. In many cases, the vasopressin treatment and  secretion is appropriate to treat hypovolemia.. In some cases such as ([[heart failure]], [[nephrotic syndrome]]) body fluid volume is increased but vasopression levels are not suppressed. for various reasons; this state is labelled "hypervolemic hyponatremia". A proportion of cases of hyponatremia feature neither hyper- nor hypovolemia. In this group (labelled "euvolemic hyponatremia"), AVP secretion is either driven by a lack of [[cortisol]] or [[thyroxine]] ([[hypoadrenalism]] and [[hypothyroidism]], respectively) or a very low level of urinary solute excretion ([[potomania]], low-protein diet), or it is entirely inappropriate. This last category is classified as the [[syndrome of inappropriate antidiuretic hormone]] (SIADH).<ref name=Verbalis2007>{{cite journal | vauthors = Verbalis JG, Goldsmith SR, Greenberg A, Schrier RW, Sterns RH | title = Hyponatremia treatment guidelines 2007: expert panel recommendations | journal = The American Journal of Medicine | volume = 120 | issue = 11 Suppl 1 | pages = S1-21 | date = November 2007 | pmid = 17981159 | doi = 10.1016/j.amjmed.2007.09.001 }}</ref>-->


===Alcohol Consumption===
{{Main|Syndrome of inappropriate antidiuretic hormone secretion}}
Upon excessive [[alcohol]] consumption, the vasopressin production is reduced significantly. The inability to store water in the [[kidneys]] may prove fatal to those who participate in heavy consumption of alcohol, due to the [[dehydration]] caused by dilute [[urine]] and [[vomit]].{{Citation needed|date=October 2010}}


==Pharmacology==
[[Syndrome of inappropriate antidiuretic hormone secretion|Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH)]] in turn can be caused by a number of problems. Some forms of [[cancer]] can cause SIADH, particularly [[small cell lung carcinoma]] but also a number of other tumors. A variety of diseases affecting the brain or the lung (infections, bleeding) can be the driver behind SIADH. A number of drugs has been associated with SIADH, such as certain antidepressants ([[serotonin reuptake inhibitor]]s and [[tricyclic antidepressant]]s), the anticonvulsant [[carbamazepine]], [[oxytocin]] (used to induce and stimulate labor), and the chemotherapy drug [[vincristine]]. It has also been associated with [[Quinolones|fluoroquinolones]] (including [[ciprofloxacin]] and [[moxifloxacin]]).<ref name="babar2013" /> Finally, it can occur without a clear explanation.<ref name="Verbalis2007">{{cite journal|date=November 2007|title=Hyponatremia treatment guidelines 2007: expert panel recommendations|journal=The American Journal of Medicine|volume=120|issue=11 Suppl 1|pages=S1–21|doi=10.1016/j.amjmed.2007.09.001|pmid=17981159|vauthors=Verbalis JG, Goldsmith SR, Greenberg A, Schrier RW, Sterns RH|citeseerx=10.1.1.499.7585}}</ref> Hyponatremia can be treated pharmaceutically through the use of [[vasopressin receptor antagonist]]s.<ref name="Verbalis2007" />
===Vasopressin analogues===
Vasopressin agonists are used therapeutically in various conditions, and its long-acting synthetic analogue [[desmopressin]] is used in conditions featuring low vasopressin secretion, as well as for control of bleeding (in some forms of [[von Willebrand disease]]) and in extreme cases of bedwetting by children. [[Terlipressin]] and related analogues are used as [[vasoconstrictor]]s in certain conditions. Use of vasopressin analogues for [[esophageal varices]] commenced in 1970.<ref name="Baum_1970">{{cite journal | author = Baum S, Nusbaum M, Tumen HJ | title = The control of gastrointestinal hemorrhage by selective mesenteric infusion of pitressin | journal = Gastroenterology | volume = 58 | issue = | pages = 926 | year = 1970 | pmid = | doi = | url = | issn = }}<!--PMID not found--></ref>


Vasopressin infusion has been used as a second line of management in [[septic shock]] patients not responding to high dose of [[inotrope]]s (e.g., [[dopamine]] or [[norepinephrine]]). It had been shown to be more effective than epinephrine in [[asystole|asystolic]] [[cardiac arrest]].<ref name="pmid14711909">{{cite journal | author = Wenzel V, Krismer AC, Arntz HR, Sitter H, Stadlbauer KH, Lindner KH | title = A comparison of vasopressin and epinephrine for out-of-hospital cardiopulmonary resuscitation | journal = N. Engl. J. Med. | volume = 350 | issue = 2 | pages = 105–13 | year = 2004 | month = January | pmid = 14711909 | doi = 10.1056/NEJMoa025431 }}</ref>  While not all studies are in agreement, a 2006 study of out-of hospital cardiac arrests has added to the evidence for the superiority of AVP in this situation, but these studies relied on sub-group analysis and better designed prospective studies show no benefit in ACLS.<ref name="pmid16420660">{{cite journal | author = Grmec S, Mally S | title = AVP improves outcome in out-of-hospital cardiopulmonary resuscitation of ventricular fibrillation and pulseless ventricular tachycardia: a observational cohort study | journal = Crit Care | volume = 10 | issue = 1 | pages = R13 | year = 2006 | month = February | pmid = 16420660 | pmc = 1550861 | doi = 10.1186/cc3967 }}</ref><ref>{{cite journal |author=Gueugniaud PY, David JS, Chanzy E, ''et al.'' |title=Vasopressin and epinephrine vs. epinephrine alone in cardiopulmonary resuscitation |journal=N. Engl. J. Med. |volume=359 |issue=1 |pages=21–30 |year=2008 |month=July |pmid=18596271 |doi=10.1056/NEJMoa0706873 }}</ref>
==History==
Vasopressin was elucidated and synthesized for the first time by [[Vincent du Vigneaud]].


===Vasopressin receptor inhibition===
== Animal studies ==
{{main|vasopressin receptor antagonist}}
Evidence for an effect of AVP on monogamy vs promiscuity comes from experimental studies in several species, which indicate that the precise distribution of vasopressin and vasopressin receptors in the brain is associated with species-typical patterns of social behavior. In particular, there are consistent differences between monogamous species and promiscuous species in the distribution of AVP receptors, and sometimes in the distribution of vasopressin-containing axons, even when closely related species are compared.<ref name="Young2009">{{cite journal|date=October 2009|title=The neuroendocrinology of the social brain|journal=Frontiers in Neuroendocrinology|volume=30|issue=4|pages=425–8|doi=10.1016/j.yfrne.2009.06.002|pmid=19596026|vauthors=Young LJ}}</ref>
A [[vasopressin receptor antagonist]] is an agent that interferes with action at the [[vasopressin receptor]]s. They can be used in the treatment of [[hyponatremia]].<ref name="pmid16843091">{{cite journal |author=Palm C, Pistrosch F, Herbrig K, Gross P |title=Vasopressin antagonists as aquaretic agents for the treatment of hyponatremia |journal=Am. J. Med. |volume=119 |issue=7 Suppl 1 |pages=S87–92 |year=2006 |month=July |pmid=16843091 |doi=10.1016/j.amjmed.2006.05.014 |url=http://linkinghub.elsevier.com/retrieve/pii/S0002-9343(06)00549-3}}</ref>


==References==
== Human studies ==
Vasopressin has shown [[nootropic]] effects on pain perception and cognitive function.<ref name="pmid25853137">{{cite journal | vauthors = Mavani GP, DeVita MV, Michelis MF | title = A review of the nonpressor and nonantidiuretic actions of the hormone vasopressin | journal = Frontiers in Medicine | volume = 2 | issue = | pages = 19 | date = 2015 | pmid = 25853137 | pmc = 4371647 | doi = 10.3389/fmed.2015.00019 }}</ref> Vasopressin also plays a role in [[autism]], [[major depressive disorder]], [[bipolar disorder]], and [[schizophrenia]].<ref name="pmid29468985">{{cite journal | vauthors = Iovino M, Messana T, De Pergola G, Iovino E, Dicuonzo F, Guastamacchia E, Giagulli VA, Triggiani V | title = The Role of Neurohypophyseal Hormones Vasopressin and Oxytocin in Neuropsychiatric Disorders | journal = Endocrine, Metabolic & Immune Disorders Drug Targets | volume = 18 | issue = 4 | pages = 341–347 | date = 2018 | pmid = 29468985 | doi = 10.2174/1871530318666180220104900 }}</ref>
 
== See also ==
*[[Syndrome of inappropriate antidiuretic hormone secretion|Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH)]]
*[[Oxytocin]]
*[[Sexual motivation and hormones]]
*[[Vasopressin receptor]]
*[[Vasopressin receptor antagonist]]s
*[[Copeptin]]
 
== References ==
{{Reflist|2}}
{{Reflist|2}}


==Further reading==
== Further reading ==
* {{cite book | author = Rector, Floyd C.; Brenner, Barry M. | authorlink = | editor = | others = | title = Brenner & Rector's the kidney | edition = 7th | language = | publisher = Saunders | location = Philadelphia | year = 2004 | origyear = | pages = | quote = | isbn = 0-7216-0164-2 | oclc = | doi = | url = http://home.mdconsult.com/das/search/openres/56203699-5?searchisbn=460046813 | accessdate = }}
* {{cite book | last1 = Rector | first1 = Floyd C. | last2 = Brenner | first2 = Barry M. | name-list-format = vanc | title = Brenner & Rector's the kidney | edition = 7th | publisher = Saunders | location = Philadelphia | year = 2004 | pages = | isbn =978-0-7216-0164-9 | url = http://home.mdconsult.com/das/search/openres/56203699-5?searchisbn=460046813 }}
 
* {{cite journal | vauthors = Mastropietro CW | date = May 2013 | title = Arginine vasopressin and  paediatric cardiovascular surgery | url = http://www.oapublishinglondon.com/article/680 | journal = OA Critical Care | volume = 1 | issue = 1 | page = 7 | doi=10.13172/2052-9309-1-1-680 }}
==External links==
* [http://videocast.nih.gov/Summary.asp?File=15521 Molecular neurobiology of social bonding: Implications for autism spectrum disorders] a lecture by Prof. Larry Young, Jan. 4, 2010.


{{PDB_Gallery|geneid=551}}
{{Hormones}}
{{Hormones}}
{{Renal physiology}}
{{Renal physiology}}
{{Neuropeptides}}
{{Neuropeptides}}
{{Neurotransmitters}}
{{Neurotransmitters}}
{{Oxytocin and vasopressin receptor modulators}}


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[[Category:Neuroscience]]
[[Category:Neurotransmitters]]
[[Category:Neuropeptides]]
[[Category:Neuropeptides]]
[[Category:Nootropics]]
[[Category:Posterior pituitary hormones]]
[[Category:Posterior pituitary hormones]]
[[Category:Neuroendocrinology]]
[[Category:Neuroendocrinology]]
[[Category:Renal physiology]]
[[Category:Renal physiology]]
 
[[Category:Vasopressin receptor agonists]]
[[ar:فازوبرسين]]
[[Category:Orgasm]]
[[bg:Антидиуретичен хормон]]
[[Category:Antidiuretics]]
[[ca:Hormona antidiürètica]]
[[cs:Antidiuretický hormon]]
[[da:ADH]]
[[de:Antidiuretisches Hormon]]
[[dv:ވޭޒޯޕްރެސިން]]
[[es:Hormona antidiurética]]
[[eo:Vazopresino]]
[[eu:Hormona antidiuretiko]]
[[fa:وازوپرسین]]
[[fr:Vasopressine]]
[[gl:Vasopresina]]
[[ko:바소프레신]]
[[hr:Antidiuretski hormon]]
[[id:Vasopresin]]
[[it:Vasopressina]]
[[he:ADH]]
[[lt:Vazopresinas]]
[[hu:Antidiuretikus hormon]]
[[mk:Вазопресин]]
[[nl:Antidiuretisch hormoon]]
[[ja:バソプレッシン]]
[[no:Antidiuretisk hormon]]
[[pl:Hormon antydiuretyczny]]
[[pt:Vasopressina]]
[[ru:Антидиуретический гормон]]
[[sq:Vazopresina]]
[[sk:Vazopresín]]
[[sr:Antidiuretski hormon]]
[[fi:Antidiureettinen hormoni]]
[[sv:Antidiuretiskt hormon]]
[[ta:வாஸோப்பிரோஸ்ஸின்]]
[[tr:Vasopressin]]
[[zh:抗利尿激素]]

Latest revision as of 13:51, 16 January 2019

Vasopressin
File:Vasopressin labeled.png
Clinical data
Pronunciation/ˌvzˈprɛsɪn/
SynonymsArginine Vasopressin; Argipressin
ATC code
Physiological data
Source tissuesSupraoptic nucleus; Paraventricular nucleus of hypothalamus
Target tissuesSystem-wide
ReceptorsV1A, V1B, V2, OXTR
AgonistsFelypressin, Desmopressin
AntagonistsDiuretics
MetabolismPredominantly in the liver and kidneys
Pharmacokinetic data
Protein binding1%
MetabolismPredominantly in the liver and kidneys
Elimination half-life10-20 minutes
ExcretionUrine
Identifiers
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
E number{{#property:P628}}
ECHA InfoCard{{#property:P2566}}Lua error in Module:EditAtWikidata at line 36: attempt to index field 'wikibase' (a nil value).
Chemical and physical data
FormulaC46H65N15O12S2
Molar mass1,084.24 g·mol−1
3D model (JSmol)
Density1.6±0.1 g/cm3
VALUE_ERROR (nil)
Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

n/a

n/a

RefSeq (protein)

n/a

n/a

Location (UCSC)n/an/a
PubMed searchn/an/a
Wikidata
View/Edit Human

Vasopressin, also called antidiuretic hormone (ADH), arginine vasopressin (AVP) or argipressin,[1] is a hormone synthesized as a peptide prohormone 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.[2][3][4]

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.[5]

Vasopressin induces differential of stem cells into cardiomyocytes and promotes heart muscle homeostasis.[6]

It has a very short half-life, between 16–24 minutes.[4]

Physiology

Function

Vasopressin regulates the tonicity of body fluids. It is released from the posterior pituitary in response to hypertonicity and causes the kidneys 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 concentrations 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.[7]

A very similar substance, lysine vasopressin (LVP) or lypressin, has the same function in pigs and is used in human AVP deficiency.[8]

Kidney

Vasopressin has three main effects which are

  1. Increasing the water permeability of initial and cortical collecting tubules (ICT & CCT), as well as outer and inner medullary collecting duct (OMCD & IMCD) in the kidney, thus allowing water reabsorption and excretion of more concentrated urine, i.e., antidiuresis. This occurs through increased transcription and insertion of water channels (Aquaporin-2) into the apical membrane of collecting tubule and collecting duct epithelial cells. [9] Aquaporins allow water to move down their osmotic gradient and out of the nephron, increasing the amount of water re-absorbed from the filtrate (forming urine) back into the bloodstream. Important for bowen students, this effect is mediated by V2 receptors. Vasopressin also increases the concentration of calcium in the collecting duct cells, by episodic release from intracellular stores. Vasopressin, acting through cAMP, also increases transcription of the aquaporin-2 gene, thus increasing the total number of aquaporin-2 molecules in collecting duct cells.[citation needed]
  2. Increasing permeability of the inner medullary portion of the collecting duct to urea by regulating the cell surface expression of urea transporters,[10] which facilitates its reabsorption into the medullary interstitium as it travels down the concentration gradient created by removing water from the connecting tubule, cortical collecting duct, and outer medullary collecting duct.
  3. Acute increase of sodium absorption across the ascending loop of henle. This adds to the countercurrent multiplication which aids in proper water reabsorption later in the distal tubule and collecting duct.[11]

Central nervous system

Vasopressin released within the brain may have several actions:

  • Vasopressin is released into the brain in a circadian rhythm by neurons of the suprachiasmatic nucleus.[12]
  • Vasopressin released from centrally projecting hypothalamic neurons is involved in aggression, blood pressure regulation, and temperature regulation.[citation needed]-->
  • Recent evidence suggests that vasopressin may have analgesic effects. The analgesia effects of vasopressin were found to be dependent on both stress and sex.[13]

Regulation

Many factors influence the secretion of vasopressin:

  • Ethanol (alcohol) reduces the calcium-dependent secretion of AVP by blocking voltage-gated calcium channels in neurohypophyseal nerve terminals in rats.[14]
  • Angiotensin II stimulates AVP secretion, in keeping with its general pressor and pro-volumic effects on the body.[15]
  • Atrial natriuretic peptide inhibits AVP secretion, in part by inhibiting Angiotensin II-induced stimulation of AVP secretion.[15]
  • Cortisol inhibits secretion of antidiuretic hormone.[16]

Production and secretion

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.

There are other sources of AVP, beyond the hypothalamic magnocellular neurons. For example, AVP is also synthesized by parvocellular neurosecretory neurons of the PVN, transported and released at the median eminence, from which it travels through the hypophyseal portal system to the anterior pituitary, where it stimulates corticotropic cells synergistically with CRH to produce ACTH (by itself it is a weak secretagogue).[17]

Vasopressin during surgery and anaesthesia

Vasopressin is used for measurement of surgical stress at evaluation of surgical techniques. Plasma vasopressin concentration is elevated at noxious stimuli,[18] predominantly during abdominal surgery,[19][20][21] especially at gut manipulation and traction of viscera.[22][23][24]

In a study on dogs, plasma vasopressin concentration increased at removal of both ovaries, with a 15 minute pause between ovary removal. Blood pressure and vasopressin concentrations changed in parallel at use of z‐scores (standard scores) for comparison.[25]

In a human study, two different approaches for lumbar spine surgery were compared. An intraoperative increase of vasopressin levels was observed in one of the groups and this group required more postoperative analgesics.[26]

File:Blood pressure and Vasopressin at removal of ovaries, Z-scores.jpg
Z‐scores (standard scores) for blood pressure and plasma vasopressin in 10 dogs subjected to ovariohysterectomy.[27] Blood pressure and vasopressin concentrations changed in parallel. Sample 1, before incision, sample 2 was collected before removal of the 1st ovary, sample 3 after removal of the 1st ovary, sample 4 after a pause and before removal of the 2nd ovary, sample 5 after removal of the 2nd ovary. Z‐scores compare and illustrate various variables and how data points deviate from the mean by use of each variable's standard deviations.[28]

Receptors

The following describes the actions of AVP:

Type Second messenger system Locations Actions Agonists Antagonists
AVPR1A Phosphatidylinositol/calcium Liver, kidney, peripheral vasculature, brain Vasoconstriction, gluconeogenesis, platelet aggregation, and release of factor VIII and von Willebrand factor; social recognition,[29] circadian tau[30] Felypressin
AVPR1B or AVPR3 Phosphatidylinositol/calcium Pituitary gland, brain Adrenocorticotropic hormone secretion in response to stress;[31] social interpretation of olfactory cues[32]
AVPR2 Adenylate cyclase/cAMP Basolateral membrane of the cells lining the collecting ducts of the kidneys (especially the cortical and outer medullary collecting ducts) Insertion of aquaporin-2 (AQP2) channels (water channels). This allows water to be reabsorbed down an osmotic gradient, and so the urine is more concentrated. Release of von Willebrand factor and surface expression of P-selectin through exocytosis of Weibel-Palade bodies from endothelial cells[33][34] AVP, desmopressin "-vaptan" diuretics, i.e. tolvaptan

Structure and relation to oxytocin

File:Vasopressin labeled.png
Chemical structure of the arginine vasopressin (argipressin) with an arginine at the 8th amino acid position. Lysine vasopressin differs only in having a lysine in this position.
File:Oxytocin with labels.png
Chemical structure of oxytocin

The vasopressins are peptides consisting of nine amino acids (nonapeptides). (NB: the value in the table above of 164 amino acids is that obtained before the hormone is activated by cleavage.) The amino acid sequence of arginine vasopressin (argipressin) is Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2, with the cysteine residues forming a disulfide bond and the C-terminus of the sequence converted to a primary amide.[35] Lysine vasopressin (lypressin) has a lysine in place of the arginine as the eighth amino acid, and is found in pigs and some related animals, whereas arginine vasopressin is found in humans.[36]

The structure of oxytocin is very similar to that of the vasopressins: It is also a nonapeptide with a disulfide bridge and its amino acid sequence differs at only two positions (see table below). The two genes are located on the same chromosome separated by a relatively small distance of less than 15,000 bases in most species. The magnocellular neurons that secrete vasopressin are adjacent to magnocellular neurons that secrete oxytocin, and are similar in many respects. The similarity of the two peptides can cause some cross-reactions: oxytocin has a slight antidiuretic function, and high levels of AVP can cause uterine contractions.[37][38]

Below is a table showing the superfamily of vasopressin and oxytocin neuropeptides:

Vertebrate Vasopressin Family
Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2 Argipressin (AVP, ADH) Most mammals
Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Lys-Gly-NH2 Lypressin (LVP) Pigs, hippos, warthogs, some marsupials
Cys-Phe-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2 Phenypressin Some marsupials
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Arg-Gly-NH2 Vasotocin Non-mammals
Vertebrate Oxytocin Family
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2 Oxytocin (OXT) Most mammals, ratfish
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Pro-Gly-NH2 Prol-Oxytocin Some New World monkeys, northern tree shrews
Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Ile-Gly-NH2 Mesotocin Most marsupials, all birds, reptiles, amphibians, lungfishes, coelacanths
Cys-Tyr-Ile-Gln-Ser-Cys-Pro-Ile-Gly-NH2 Seritocin Frogs
Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Ile-Gly-NH2 Isotocin Bony fishes
Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Gln-Gly-NH2 Glumitocin skates
Cys-Tyr-Ile-Asn/Gln-Asn-Cys-Pro-Leu/Val-Gly-NH2 Various tocins Sharks
Invertebrate VP/OT Superfamily
Cys-Leu-Ile-Thr-Asn-Cys-Pro-Arg-Gly-NH2 Inotocin Locust
Cys-Phe-Val-Arg-Asn-Cys-Pro-Thr-Gly-NH2 Annetocin Earthworm
Cys-Phe-Ile-Arg-Asn-Cys-Pro-Lys-Gly-NH2 Lys-Connopressin Geography & imperial cone snail, pond snail, sea hare, leech
Cys-Ile-Ile-Arg-Asn-Cys-Pro-Arg-Gly-NH2 Arg-Connopressin Striped cone snail
Cys-Tyr-Phe-Arg-Asn-Cys-Pro-Ile-Gly-NH2 Cephalotocin Octopus
Cys-Phe-Trp-Thr-Ser-Cys-Pro-Ile-Gly-NH2 Octopressin Octopus
†Vasotocin is the evolutionary progenitor of all the vertebrate neurohypophysial hormones.[39]

Medical use

Vasopressin is used to manage anti-diuretic hormone deficiency. It has off-label uses and is used in the treatment of vasodilatory shock, gastrointestinal bleeding, ventricular tachycardia and ventricular fibrillation. Vasopressin is used to treat diabetes insipidus related to low levels of antiduretic hormone. It is available as Pressyn.[40]

Vasopressin agonists are used therapeutically in various conditions, and its long-acting synthetic analogue desmopressin is used in conditions featuring low vasopressin secretion, as well as for control of bleeding (in some forms of von Willebrand disease and in mild haemophilia A) and in extreme cases of bedwetting by children. Terlipressin and related analogues are used as vasoconstrictors in certain conditions. Use of vasopressin analogues for esophageal varices commenced in 1970.[41]

Vasopressin infusions are also used as second line therapy 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) comparing to synthetic non-arginine vasopresines with much longer elimination half-life of many hours. Further, argipressins act on V1a, V1b, and V2 reseptors which consequently lead to higher eGFR and lower vascular resistance in the lungs. A number of injectable arginine vasopressins are currently in clinical use in the United States and in Europe.

Pharmacokinetics

Vasopressin is administered through an intravenous device, intramuscular injection or a subcutaneous injection. The duration of action depends on the mode of administration and ranges from thirty minutes to two hours. It has a half life of ten to twenty minutes. It is widely distributed throughout the body and remains in the extracellular fluid. It is degraded by the liver and excreted through the kidneys.[40]. Arginin vasopressins for use in septic shock are intended for intravenous use only.

Side effects

The most common side effects during treatment with vasopressin are dizziness, angina, chest pain, abdominal cramps, heartburn, nausea, vomiting, trembling, fever, water intoxication, pounding sensation in the head, diarrhea, sweating, paleness, and flatulence. The most severe adverse reactions are myocardial infarction and hypersensitivy.[40]

Contraindications

The use of lysine vasopressin is contraindicated in the presence of hypersentivity to beef or pork proteins, increased BUN and chronic renal failure. It is recommended that it be cautiously used in instances of perioperative polyuria, sensitivity to the drug, asthma, seizures, heart failure, a comatose state, migraine headaches, and cardiovascular disease.[40]

Interactions

Role in disease

There may be a connection between arginine vasopressin and autism.[42]

Deficiency

Decreased AVP release (neurogenic — i.e. due to alcohol intoxication or tumour) or decreased renal sensitivity to AVP (nephrogenic, i.e. by mutation of V2 receptor or AQP) leads to diabetes insipidus, a condition featuring hypernatremia (increased blood sodium concentration), polyuria (excess urine production), and polydipsia (thirst).

Excess

Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) in turn can be caused by a number of problems. Some forms of cancer can cause SIADH, particularly small cell lung carcinoma but also a number of other tumors. A variety of diseases affecting the brain or the lung (infections, bleeding) can be the driver behind SIADH. A number of drugs has been associated with SIADH, such as certain antidepressants (serotonin reuptake inhibitors and tricyclic antidepressants), the anticonvulsant carbamazepine, oxytocin (used to induce and stimulate labor), and the chemotherapy drug vincristine. It has also been associated with fluoroquinolones (including ciprofloxacin and moxifloxacin).[4] Finally, it can occur without a clear explanation.[43] Hyponatremia can be treated pharmaceutically through the use of vasopressin receptor antagonists.[43]

History

Vasopressin was elucidated and synthesized for the first time by Vincent du Vigneaud.

Animal studies

Evidence for an effect of AVP on monogamy vs promiscuity comes from experimental studies in several species, which indicate that the precise distribution of vasopressin and vasopressin receptors in the brain is associated with species-typical patterns of social behavior. In particular, there are consistent differences between monogamous species and promiscuous species in the distribution of AVP receptors, and sometimes in the distribution of vasopressin-containing axons, even when closely related species are compared.[44]

Human studies

Vasopressin has shown nootropic effects on pain perception and cognitive function.[45] Vasopressin also plays a role in autism, major depressive disorder, bipolar disorder, and schizophrenia.[46]

See also

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Further reading