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...

    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..

    Cell Biology
    Cell Biology

    The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

    Growth and Plant Hormones
    Growth and Plant Hormones

    Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..

    Transpiration
    Water in Plants

    The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

    Cell Respiration
    Cell Respiration

    Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

    New Zealand - Biodiversity fauna
    New Zealand’s Biodiversity

    Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

    Related Articles...

    No related articles found

    See all Related Topics