A peptide hormone (1007 D) from hypothalamus: transported to the posterior lobe of the pituitary (see neurophysin). Induces smooth muscle contraction in uterus and mammary glands. Related to vasopressin.

Dictionary of molecular biology. 2004.

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  • Oxytocin — Systematic (IUPAC) name 1 ({(4R,7S,10S …   Wikipedia

  • Oxytocin — Strukturformel …   Deutsch Wikipedia

  • Oxytocin — Oxytocin, vom Hypothalamus gebildetes und in der Neurohypophyse gespeichertes ⇒ Neurohormon der Säuger; ein durch eine Disulfidbrücke ringförmig geschlossenes Nonapeptid; es bewirkt eine Kontraktion der Uterusmuskulatur, löst Wehen aus und führt… …   Deutsch wörterbuch der biologie

  • oxytocin — [äk΄si tō′sin, äk΄sitäs′in] n. [< OXYTOCIC + IN1] a hormone, C43H66N12O12S2, of the posterior pituitary gland, that stimulates contractions in the smooth muscle of the uterus and facilitates the secretion of milk: cf. NEUROHYPOPHYSIS …   English World dictionary

  • oxytocin — /ok si toh seuhn/, n. 1. Biochem. a polypeptide hormone, produced by the posterior lobe of the pituitary gland, that stimulates contraction of the smooth muscle of the uterus. 2. Pharm. a commercial form of this substance, obtained from beef and… …   Universalium

  • Oxytocin — A hormone made in the brain that plays a role in childbirth and lactation by causing muscles to contract in the uterus (womb) and the mammary glands in the breast. Animal studies have shown that oxytocin also has a role in pair bonding, mate… …   Medical dictionary

  • Oxytocin — O|xy|to|cin [↑ Ox (1); griech. tókos = Geburt; ↑ in (3)], das; s, e; S: Oxytozin: ein im Hypothalamus gebildetes, eine Disulfidbrücke enthaltendes ↑ Peptid Hormon aus 9 Aminosäuren, MG 1007, das mit Melanoliberin u. Melanostatin verwandt ist. Im… …   Universal-Lexikon

  • oxytocin — n. a hormone, released by the pituitary gland, that causes contraction of the uterus during labour and stimulates milk flow from the breasts by causing contraction of muscle fibres in the milk ducts. Intravenous infusions or injections of… …   The new mediacal dictionary

  • Oxytocin receptor — Identifiers Symbols OXTR; OT R External IDs OMIM:  …   Wikipedia

  • oxytocin challenge test — (OCT) a contraction stress test in which uterine contractions are stimulated by intravenous infusion of oxytocin …   Medical dictionary

  • oxytocin — noun Etymology: International Scientific Vocabulary, from oxytocic Date: 1928 a pituitary octapeptide hormone C43H66N12O12S2 that stimulates especially the contraction of uterine muscle and the secretion of milk …   New Collegiate Dictionary

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