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Query: UMLS:C0003128 (
anovulation
)
1,718
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The patient with androgen excess may present with amenorrhea, oligomenorrhea, painless metromenorrhagia, or infertility.
Adrenal
and ovarian tumors, though uncommon, must be excluded in the workup. The long-term sequelae of untreated
anovulation
includes adenomatous hyperplasia and cancer of the endometrium. Treatment can range from uncomplicated follow-up with cosmetic advice to the use of potent drugs that induce ovulation.
...
PMID:Gynecologic problems of androgen excess. 235 85
The literature concerning endogenous hormonal profiles in women with breast cancer and breast-cancer risk has been critically reviewed. The many published reports have been divided into 11 groups, with each group centered on a particular hypothesis that has been either explicitly formulated by the authors of the reports or perceived by other workers as a unifying hypothesis in certain studies. The hypotheses reviewed are: the adrenal androgen insufficiency hypothesis, the
anovulation
/luteal inadequacy hypothesis, the estriol hypothesis, the ovarian androgen excess hypothesis, the thyroid dysfunction hypothesis, the prolactin hypothesis, the estrone hypothesis, the estrogen-window hypothesis, the estrogen-excess hypothesis, the melatonin hypothesis, and the estrogen hydroxylation hypothesis. It is concluded that there remain, at present, only four viable hypotheses: the hypotheses of increased risk with adrenal androgen deficiency, ovarian dysfunction (luteal inadequacy and excessive ovarian androgen secretion), increased 16 alpha-hydroxylation of estradiol, and the hypothesis of decreased risk with pregnancy-induced lowering of prolactin levels.
Adrenal
androgen deficiency seems to be pertinent only in premenopausal cancer patients, and may be a genetic defect. Ovarian dysfunction seems to be pertinent to both premenopausal and post-menopausal patients and may also have a strong genetic component. Increased estradiol hydroxylation likewise seems to have a genetic component. The prolactin effect differs from the others, in that it is clearly environmental, rather than genetic, and may represent a permissive effect rather than a true risk-promoting effect.
...
PMID:Hormonal profiles in women with breast cancer (review). 305 48
Hyperandrogenism, insulin resistance, and obesity are common features of polycystic ovarian syndrome (PCOS). This study was designed to investigate the relationship among these factors and how they might contribute to ovulatory dysfunction in PCOS.
Adrenal
androgen secretion and insulin resistance were quantified in oligomenorrheic women with PCOS and in three groups of eumenorrheic women: weight-matched hirsute women, obese nonhirsute women, and thin nonhirsute women.
Adrenal
androgen secretion was defined as the androstenedione response to synthetic corticotropin. Insulin resistance was estimated by calculating the area under the curve for serum insulin levels in response to a 75 g oral glucose load. The mean serum androstenedione response (nmol/L) to corticotropin in PCOS (5.6 +/- 1.3) was greater than that in eumenorrheic hirsute women (3.4 +/- 0.5; P < 0.10), obese nonhirsute women (1.8 +/- 0.8; P < 0.05), and lean nonhirsute women (1.9 +/- 0.5; P < 0.05). The serum androstenedione response was not correlated with body mass index (BMI). The area under the curve for serum insulin (mU/L.min/1000) in PCOS (29.1 +/- 5.3) was greater (P < 0.001) than in eumenorrheic hirsute women (9.1 +/- 1.7), obese nonhirsute women (5.8 +/- 1.0), and lean nonhirsute women (4.5 +/- 0.4). The serum insulin response was highly correlated with BMI (P < 0.001) in the three groups of obese women, but women with PCOS became significantly more insulin resistant with increasing BMI (P < 0.02). There was no correlation between adrenal androgen secretion and insulin resistance in any of the groups. We conclude that adrenal hyperandrogenism and insulin resistance are independent predictors of
anovulation
in hirsute women. These conditions are present in both oligomenorrheic and eumenorrheic hirsute women, but are present to a greater extent in anovulatory women. Obese women with PCOS also differ from eumenorrheic controls by developing a greater degree of insulin resistance as body mass increases.
...
PMID:The role of adrenal hyperandrogenism, insulin resistance, and obesity in the pathogenesis of polycystic ovarian syndrome. 838 5
Adrenal
ganglioneuromas are rare, benign incidentalomas of a neural crest origin. A majority of these tumours are clinically silent and discovered on imaging for unrelated reasons. Polycystic ovarian disease (PCOD) is an endocrine disorder characterised by bilateral polycystic ovaries,
anovulation
leading to infertility, irregular menstrual cycles and features of androgen hormone excess. Herein we report a rare case of adrenal ganglioneuroma in a 14-year-old girl with PCOD. She was referred to us by the gynaecologist after incidental detection of adrenal mass on ultrasonography. Except for raised 24 h urinary metanephrines, rest of the hormones measured were in normal range. Transperitoneal adrenalectomy was performed and histopathology was suggestive of ganglioneuroma. Postoperative recovery was excellent and she is doing well. To our knowledge it is the first such type of case to be reported.
...
PMID:Adrenal ganglioneuroma in a patient with polycystic ovarian disease (PCOD): a rare association. 2414 7
The reproductive function of humans is regulated by several sex hormones which are secreted in synergy with the circadian timing of the body. Sleep patterns produce generic signatures that physiologically drive the synthesis, secretion, and metabolism of hormones necessary for reproduction. Sleep deprivation among men and women is increasingly reported as one of the causes of infertility. In animal models, sleep disturbances impair the secretion of sexual hormones thereby leading to a decrease in testosterone level, reduced sperm motility and apoptosis of the Leydig cells in male rats. Sleep deprivation generates stressful stimuli intrinsically, due to circadian desynchrony and thereby increases the activation of the Hypothalamus-Pituitary
Adrenal
(HPA) axis, which, consequently, increases the production of corticosterone. The elevated level of corticosteroids results in a reduction in testosterone production. Sleep deprivation produces a commensurate effect on women by reducing the chances of fertility. Sleeplessness among female shift workers suppresses melatonin production as well as excessive HPA activation which results in early pregnancy loss, failed embryo implantation,
anovulation
and amenorrhea. Sleep deprivation in women has also be found to be associated with altered gonadotropin and sex steroid secretion which all together lead to female infertility. Poor quality of sleep is observed in middle-aged and older men and this also contributes to reduced testosterone concentrations. The influence of sleep disturbances post-menopausal is associated with irregular synthesis and secretion of female sex steroid hormones.
...
PMID:Sleep and Reproductive Health. 3225 30