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Topic: Oxytocin

Related Topics

Magnocellular neurosecretory cell

Breastfeeding

Somatostatin

Prolactin

Delivery

Hormone

Amino acid

HPA axis

Pituitary gland

Luteinizing hormone

Arginine

Endocrine system

Glycine

Vasopressin

Glutamine

	Oxytocin - Wikipedia, the free encyclopedia
		Oxytocin is made in magnocellular neurosecretory cells in the supraoptic nucleus and paraventricular nucleus of the hypothalamus and is released into the blood from the posterior lobe of the pituitary gland.
		Oxytocin receptors are expressed by the myoepithelial cells of the mammary gland, and in both the myometrium and endometrium of the uterus at the end of pregnancy.
		Sucking by the infant at the nipple is relayed by spinal nerves to the hypothalamus.
	en.wikipedia.org /wiki/Oxytocin (1988 words)

	Lactation - Oxytocin
		Oxytocin is syntheized in the hypothalamus in specific nuclei, the paraventricular nucleus and the supraoptic nucleus in the hypothalamus.
		The precursor is proteolytically cleaved in the neuron in the oxytocin-containing vesicle to yield oxytocin bound to neurophysin.
		Oxytocin may be directly or indirectly involved in prolactin release during proestrus in the rat, but this may not be the case in prolactin release caused by suckling or milking (Johnston and Negro-Vilar, 1988, Endocrinology 122:341).
	classes.aces.uiuc.edu /AnSci308/Lactation/oxytocin.html (910 words)

	Oxytocin (Site not responding. Last check: 2007-10-21)
		Oxytocin is synthesized in the soma (cell body),and then transported (using energy) all the way down the axon to the nerve terminals, where it can be released into the spinal cord and bloodstream.
		Oxytocin is released by genital stimulation in males and females in a variety of species.
		Oxytocin is present in all mammalian species, and prairie and montane voles appear to have similar levels of these peptides (Wang et al 1996).
	instruct1.cit.cornell.edu /courses/bionb424/students/nzl1/Oxytocin.htm (992 words)

	Oxytocin
		It is synthesized in the hypothalamus by magnocellular neurosecretory cells and released from the posterior lobe of the pituitary gland.
		Oxytocin is a peptide of nine different amino acids: cysteine, tyrosine, isoleucine, glutamine, asparagines, cysteine, praline, leucine, glycine (abbreviated CYIQNCPLG).
		Oxytocin's physical effects on humans include uterine contractions just prior to birth that enable cervical dilation, and the contractions during the second and third stages of labor.
	www.iscid.org /encyclopedia/Oxytocin (576 words)

	OXYTOCIN AND MILK EJECTION
		The oxytocin is carried through the blood stream to the mammary gland where it interacts with specific receptors on myoepithelial cells, initiating their contraction and expelling milk from the alveoli into the ducts and sub-areolar sinuses.
		Oxytocin release is also modulated at the level of the posterior pituitary primarily by opioids, acting preferentially at the K-subtype of opioid receptor.
		The recent cloning of the oxytocin receptor shows that it belongs to a family of nonapeptide hormone receptors that includes the vasopressin receptors and that appear to be coupled to the inositol phospholipid-protein kinase C system.
	mammary.nih.gov /reviews/lactation/Neville002 (1955 words)

	Chemical & Engineering News: Top Pharmaceuticals: Oxytocin
		Oxytocin was discovered in 1909 when Sir Henry H. Dale found that an extract from the human posterior pituitary gland contracted the uterus of a pregnant cat.
		Oxytocin is not only a hormone that circulates in the bloodstream, it is also a neurotransmitter that travels along nerve cells in the brain and elsewhere.
		Oxytocin researcher Kerstin Uvnäs Moberg, professor of physiology at the Swedish University of Agricultural Sciences, suggests that oxytocin is the leading hormone in a physiological system that calms the body and promotes social bonding.
	pubs.acs.org /cen/coverstory/83/8325/8325oxytocin.html (973 words)

	Oxytocin
		Since oxytocin, a polypeptide, is subject to inactivation by the proteolytic enzymes of the alimentary tract, it is not absorbed from the gastrointestinal tract.
		Oxytocin nasal spray acts specifically on the myoepithelial elements surrounding the alveoli of the breast, and making up the walls of the lactiferous ducts, causing their smooth muscle fibers to contract and thus force milk into the large ducts of the sinuses where it is more readily available to the baby.
		Oxytocin is indicated to produce uterine contractions during the third stage of labor and to control postpartum bleeding or hemorrhage.
	www.orgyn.com /resources/genrx/d001945.asp (2940 words)

	oxytocin. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The structure of oxytocin, a cyclic peptide consisting of nine amino acids, was determined in 1953 and in the same year it was synthesized in the laboratory.
		Both oxytocin and antidiuretic hormone are biosynthesized in the hypothalamus of the brain and travel down neuronal axons to the posterior pituitary, where they accumulate prior to release.
		Stimuli that elicit the release of oxytocin include childbirth, suckling, and coitus; the uterine contractions that result may facilitate either childbirth or the ascent of spermatozoa through the fallopian tubes.
	www.bartleby.com /65/ox/oxytocin.html (187 words)

	Oxytocin - PetPlace.com (Site not responding. Last check: 2007-10-21)
		Oxytocin should not be used if the fetus is in an abnormal position or is too large to pass through the birth canal.
		This form of oxytocin is not for use to stimulate uterine contractions and should not be used for that purpose.
		Typically, oxytocin is given to dogs and cats at a dose of 2 to 20 units intravenous or intramuscular.
	www.petplace.com /drug-library/oxytocin/page1.aspx (567 words)

	BBC NEWS \| Health \| Scientists create 'trust potion'
		Oxytocin is a molecule produced naturally in the hypothalamus area of the brain which regulates a variety of physiological processes, including emotion.
		Investors and trustees were either given oxytocin via a nasal spray, or a dummy, or placebo, version.
		Of 29 investors who were given oxytocin, 13 (45%) displayed "maximal trust" by choosing to invest highly, compared with six (21%) of the 29 investors who were given the dummy spray.
	news.bbc.co.uk /2/hi/health/4599299.stm (664 words)

	Oxytocin Information on Healthline
		Oxytocin should be administered as an injection into a muscle or intravenously by a healthcare provider.
		Oxytocin is a natural hormone that causes the uterus to contract.
		Oxytocin is used to induce labor, strengthen labor contractions during childbirth, control bleeding after childbirth, or to induce an abortion.
	www.healthline.com /multumcontent/oxytocin (950 words)

	Oxytocin (Site not responding. Last check: 2007-10-21)
		In humans, oxytocin stimulates milk ejection during lactation, uterine contraction during birth, and is released during sexual orgasm in both men and women.
		Turner and her colleagues tested the idea that oxytocin is released in response to intense emotional states in addition to physical cues.
		Because oxytocin is released in men and women during sexual orgasm, it appears to be involved in adult bonding.
	members.aol.com /sexualabstinence/oxytocin.htm (645 words)

	Oxytocin - Drugs & Vitamins - Drug Library - DrugDigest
		OXYTOCIN (Pitocin®, Syntocinon®) is a natural hormone produced in the brain that causes the uterus to contract.
		Oxytocin can be used when labor needs to be induced or during labor if the contractions are not strong enough to progress normally.
		Oxytocin is for injection into a muscle or infusion into a vein.
	www.drugdigest.org /DD/DVH/Uses/0,3915,516\|Oxytocin,00.html (434 words)

	Oxytocin and Vasopressin
		Oxytocin causes smooth muscle contraction in the alveoli (small chambers) and larger sinuses of the mammary glands to make readily available milk, whose production has been induced by prolactin and estrogen, to the suckling infant.
		Oxytocin (Pitocin®, Syntocinon®); Synonyms: Pit: Indicated for the induction of labor at term and control of postpartum bleeding.
		For ADH and oxytocin analogs, an important modification to improve half life was to remove the N-terminal amine found on the cysteine of position 1 (designated by a "d").
	www.neurosci.pharm.utoledo.edu /MBC3320/vasopressin.htm (1586 words)

	Oxytocin (via CobWeb/3.1 planetlab1.tamu.edu) (Site not responding. Last check: 2007-10-21)
		Oxytocin in a nine amino acid peptide that is synthesized in hypothalamic neurons and transported down axons of the posterior pituitary for secretion into blood.
		Oxytocin is released during labor when the fetus stimulates the cervix and vagina, and it enhances contraction of uterine smooth muscle to facilitate parturition or birth.
		For example, oxytocin neurons are repressed by catecholamines, which are released from the adrenal gland in response to many types of stress, including fright.
	arbl.cvmbs.colostate.edu.cob-web.org:8888 /hbooks/pathphys/endocrine/hypopit/oxytocin.html (924 words)

	Oxytocin use in the mare during breeding
		Oxytocin acts on smooth muscle in the body, causing it to contract.
		Amounts in excess of one inch are considered to be more likely to respond favourably to lavage with subsequent oxytocin treatment, and the resulting exudate should also be evaluated for inflammatory cells and bacteria, as a bacterial uterine infection may be the cause.
		The first intramuscular or intravenous injection of oxytocin (see below for dosage discussion) should be at 4 hours after breeding, which allows adequate time for all sufficiently progressively motile sperm to make their way to the oviducts (which are not affected by the oxytocin treatment).
	www.equine-reproduction.com /articles/oxytocin.htm (1462 words)

	CD Baby: OXYTOCIN: Love It (Site not responding. Last check: 2007-10-21)
		Oxytocin is named after one of those "love hormones" in the brain that state-of-the art antidepressants will probably soon be able to inhibit re-uptake of.
		Oxytocin performs progressive rock with a journey that spans and cross over plenty a genre.
		One could easily utter King Crimson alongside Oxytocin, which makes you wonder if their name is a misspelling of the famous redneck drug Oxycotin, well regardless they’re just as addicting though not to just the more sad fellows in society.
	www.cdbaby.com /cd/oxytocin (918 words)

	MedlinePlus Drug Information: Oxytocin (Systemic) (Site not responding. Last check: 2007-10-21)
		Oxytocin (ox-i-TOE-sin) is a hormone used to help start or continue labor and to control bleeding after delivery.
		Oxytocin may also be used for other conditions as determined by your doctor.
		Oxytocin has been reported to cause irregular heartbeat and increase bleeding after delivery in some women.
	www.nlm.nih.gov /medlineplus/druginfo/uspdi/202434.html (785 words)

	Oxytocin
		However we are concerned that they will induce her by an oxytocin drip.
		Oxytocin is started slowly and because the labor is monitored, the contractions are never allowed to get closer together than her own labor would.
		This liberates her own natural oxytocin so it must be considered just as much an induction as if she had IVs.
	parenting.ivillage.com /pregnancy/plabor/0,,midwife_3pj8,00.html (366 words)

	Oxytocin definition - Medical Dictionary definitions of popular medical terms
		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.
		Oxytocin is a peptide (a compound consisting of 2 or more amino acids) that is secreted by the hypothalamus and transported to the posterior lobe of the pituitary gland at the base of the brain.
		Oxytocin is related to another hormone called vasopressin.
	www.medterms.com /script/main/art.asp?articlekey=13789 (148 words)

	USATODAY.com - Trust via chemistry? Study says it's possible (Site not responding. Last check: 2007-10-21)
		Oxytocin, a hormone used to stimulate contractions during labor, also appears to be a trust-builder when inhaled, says the team led by Michael Kosfeld of Switzerland's University of Zurich.
		Replacing the trustee with a computer issuing random payoffs dropped the volunteers' investment rate back to normal, suggesting to the scientists that trust, not risk-taking, is the emotional factor influenced by the hormone.
		Generated mostly in the brain, oxytocin plays a role in maternal behavior in mammals, such as nursing infants and in the overcoming of natural inhibitions against allowing others to approach.
	www.usatoday.com /news/health/2005-06-01-trust_x.htm (515 words)

	Oxytocin ELISA > Oxytocin Assay Kit > Assay Designs (Site not responding. Last check: 2007-10-21)
		Oxytocin is a peptide, which is produced in the paraventricular nuclei of the hypothalamus and is stored in the posterior pituitary.
		Oxytocin consists of nine amino acids linked with a [1-6] disulfide bond and a carboxyamidated tail.
		A hormone once thought to be limited to female smooth muscle reproductive physiology, more current findings have determined that oxytocin also functions as a neurotransmitter, may be involved in neuropsychiatric disorders, social/sexual behavior and is important in male reproductive physiology.
	assaydesigns.com /products/catalog/immuno_assay/product_oxytocin.htm (214 words)

	Oxytocin in Women: The Bridge Between Touch and Sex
		Oxytocin makes us feel good about the person who causes the oxytocin to be released, and it causes a bonding between the two persons.
		Nursing a baby produces oxytocin in both mother and child, and this is a major part of what initially bonds the mother and her baby.
		Oxytocin is virtually powerless with out estrogen, and oxytocin's affects are increasingly powerful as estrogen levels rise.
	www.themarriagebed.com /pages/biology/female/female-oxytocin.shtml (1003 words)

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