Dictionary > Argipressin

Argipressin

Definition
noun, plural: argipressins
A vasopressin that has an amino acid sequence: Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2
Supplement
Agripressin (or arginine vasopressin) is one of the members of the vertebrate vasopressin family. Vasopressin is a nonapeptide hormone, being comprised of nine amino acids. The other three forms of vasopressins identified in vertebrates are lypressin, phenypressin, and vasotocin. In particular, agripressin’s amino acid sequence is Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly-NH2.
The arginine vasopressin (AVP) is widespread, occurring in most mammals, including humans. In fact, it is sometimes referred to as simply vasopressin. This hormone is produced by certain neurons in the hypothalamus, and then released from the posterior pituitary. The posterior pituitary does not produce AVP. Rather, it is synthesized in the hypothalamus and then travels down the axon that terminates in the posterior pituitary. The hormone is released into the circulation in response to hypertonicity or hyperosmolality of the extracellular fluid.
AVP reacts with the following receptors:

  • Vasopressin receptor 1A (V1AR) – on the surface of target cells in liver, kidney, peripheral vasculature, and brain
  • Vasopressin V1b receptor (V1BR) – on the surface of target cells in pituitary gland and brain
  • Vasopressin receptor 2 (V2R) – on the basolateral membrane of the cells lining the collecting ducts of the kidneys, particularly the cortical and outer medullary collecting ducts

As a vasopressin, AVP has vasopressor and antidiuretic effects in mammals producing it. Pharmacologically, it is used to treat diabetes insipidus and as haemostatic because of its vasoconstrictor action. Its pharmacological actions include haemostatics, renal agents, and vasoconstrictor agents. Its chemical name is vasopressin, 8-L-arginine-.
Synonym(s):

  • arginine vasopressin (AVH)

See also:

  • posterior pituitary
  • hypothalamus
  • pituicyte
  • vasopressin
  • Arginine vasopressin receptor 1A


  • You will also like...

    Chemical composition of the body
    Chemical Composition of the Body

    The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

    An artistic depiction of Dunkleosteus fish
    Fish

    The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

    Still freshwater and plants
    Still Freshwater & Plants

    Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

    Digestion and Absorption of Food
    Digestion and Absorption of Food

    The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

    Freshwater Ecology
    Freshwater Ecology

    Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

    Structural depiction of catalase, an enzyme
    Protein Activity and Cellular Metabolism

    Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

    Related Articles...

    No related articles found

    See all Related Topics