Search results
Results From The WOW.Com Content Network
Oxytocin is a peptide hormone and neuropeptide normally produced in the hypothalamus and released by the posterior pituitary. [4] Present in animals since early stages of evolution, in humans it plays roles in behavior that include social bonding, love, reproduction, childbirth, and the period after childbirth.
Receptor levels rise as individuals age among certain ethnic groups, and typically, white women have greater receptor levels compared to black or Japanese women. [40] It has been hypothesized that the absence of a tumor-suppressor gene may lead to the inability to decrease the activity of estrogen receptors when cells enter the cell cycle or ...
[49] [28] High dosages of testosterone that result in supraphysiological levels of testosterone (> 50 ng/dL) significantly increase sexual desire in women, with levels of testosterone of 80 to 150 ng/dL "slightly" increasing sexual desire. [49] [28] Further higher dosages of testosterone may result in greater effects on sexual desire in women.
Oxytocin levels in human females are associated with the degree of physical affection and bonding. Feldman (2010) found that mothers who displayed “high affectionate contact” had increased oxytocin levels post interaction, but not mothers who displayed “low affectionate contact. [22] ”
The following is a list of hormones found in Homo sapiens.Spelling is not uniform for many hormones. For example, current North American and international usage uses [citation needed] estrogen and gonadotropin, while British usage retains the Greek digraph in oestrogen and favours the earlier spelling gonadotrophin.
An increase in levels of oxytocin, glucocorticoids, estrogen and prolactin occur in the paternal brain. [13] [59] These hormonal changes occur through the father's interaction with the mother and his offspring. [1] Oxytocin levels are positively correlated with the amount of affection the father displays towards the child. [60]
The hormone oxytocin has been identified as inducing uterine contractions, and labour in general. [9] Oxytocin is produced by the body naturally and since the 1950s has also been available in synthetic pharmaceutical form. [10] [11] In either form, oxytocin stimulates uterine contractions to accelerate the process of childbirth.
Oxytocinase is a type of enzyme that metabolizes the endogenous neuropeptide, oxytocin. [1] The most well-characterized oxytocinase is leucyl/cystinyl aminopeptidase, [1] [2] which is also an enkephalinase. Other oxytocinases are also known.