Polycystic ovary syndrome: Difference between revisions
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Medications for PCOS include [[oral contraceptives]] and [[metformin]]. The oral contraceptives increase [[sex hormone binding globulin]] production, which increases binding of free testosterone. This reduces the symptoms of [[hirsutism]] caused by high testosterone and regulates return to normal [[menstrual periods]]. Metformin is a medication commonly used in [[type 2 diabetes mellitus]] to reduce insulin resistance, and is used [[Off-label use|off label]] (in the UK, US, AU and EU) to treat insulin resistance seen in PCOS. In many cases, metformin also supports ovarian function and return to normal ovulation.<ref name=emedicine_treatment /><ref name=Lord>{{cite journal | vauthors = Lord JM, Flight IH, Norman RJ | title = Metformin in polycystic ovary syndrome: systematic review and meta-analysis | journal = BMJ | volume = 327 | issue = 7421 | pages = 951–953 | date = October 2003 | pmid = 14576245 | pmc = 259161 | doi = 10.1136/bmj.327.7421.951 }}</ref> [[Spironolactone]] can be used for its antiandrogenic effects, and the topical cream [[eflornithine]] can be used to reduce facial hair. A newer insulin resistance medication class, the [[thiazolidinedione]]s (glitazones), have shown equivalent efficacy to metformin, but metformin has a more favorable side effect profile.<ref>{{cite journal | vauthors = Li XJ, Yu YX, Liu CQ, Zhang W, Zhang HJ, Yan B, Wang LY, Yang SY, Zhang SH | display-authors = 6 | title = Metformin vs thiazolidinediones for treatment of clinical, hormonal and metabolic characteristics of polycystic ovary syndrome: a meta-analysis | journal = Clinical Endocrinology | volume = 74 | issue = 3 | pages = 332–339 | date = March 2011 | pmid = 21050251 | doi = 10.1111/j.1365-2265.2010.03917.x | s2cid = 19620846 }}</ref><ref>{{cite journal | vauthors = Grover A, Yialamas MA | title = Metformin or thiazolidinedione therapy in PCOS? | journal = Nature Reviews. Endocrinology | volume = 7 | issue = 3 | pages = 128–129 | date = March 2011 | pmid = 21283123 | doi = 10.1038/nrendo.2011.16 | s2cid = 26162421 | id = {{GALE|A250471047}} }}</ref> The United Kingdom's [[National Institute for Health and Clinical Excellence]] recommended in 2004 that women with PCOS and a [[body mass index]] above 25 be given metformin when other therapy has failed to produce results.<ref name="NICE2004">{{NICE | 11 | Fertility: assessment and treatment for people with fertility problems | 2004}}</ref><ref>{{cite web | vauthors = Balen A |title=Metformin therapy for the management of infertility in women with polycystic ovary syndrome |website=Scientific Advisory Committee Opinion Paper 13 |publisher=Royal College of Obstetricians and Gynaecologists |date=December 2008 |url=http://www.rcog.org.uk/files/rcog-corp/uploaded-files/SAC13metformin-minorrevision.pdf |access-date=2009-12-13 |url-status=dead |archive-url=https://www.webcitation.org/5m73m3kuM?url=http://www.rcog.org.uk/files/rcog-corp/uploaded-files/SAC13metformin-minorrevision.pdf |archive-date=2009-12-18 }}</ref> Metformin may not be effective in every type of PCOS, and therefore there is some disagreement about whether it should be used as a general first line therapy.<ref name="pmid19697191">{{cite journal | vauthors = Leeman L, Acharya U | title = The use of metformin in the management of polycystic ovary syndrome and associated anovulatory infertility: the current evidence | journal = Journal of Obstetrics and Gynaecology | volume = 29 | issue = 6 | pages = 467–472 | date = August 2009 | pmid = 19697191 | doi = 10.1080/01443610902829414 | s2cid = 3339588 }}</ref> In addition to this, metformin is associated with several unpleasant side effects: including abdominal pain, metallic taste in the mouth, diarrhoea and vomiting.<ref>{{cite web |author=NICE |title=Metformin Hydrochloride |website=National Institute for Care Excellence |publisher=NICE |date=December 2018 |url=https://bnf.nice.org.uk/drug/metformin-hydrochloride.html#sideEffects |access-date=2017-11-02 }}</ref> The use of [[statins]] in the management of underlying metabolic syndrome remains unclear.<ref name="Diagnosis and treatment of polycyst"/> |
Medications for PCOS include [[oral contraceptives]] and [[metformin]]. The oral contraceptives increase [[sex hormone binding globulin]] production, which increases binding of free testosterone. This reduces the symptoms of [[hirsutism]] caused by high testosterone and regulates return to normal [[menstrual periods]]. Metformin is a medication commonly used in [[type 2 diabetes mellitus]] to reduce insulin resistance, and is used [[Off-label use|off label]] (in the UK, US, AU and EU) to treat insulin resistance seen in PCOS. In many cases, metformin also supports ovarian function and return to normal ovulation.<ref name=emedicine_treatment /><ref name=Lord>{{cite journal | vauthors = Lord JM, Flight IH, Norman RJ | title = Metformin in polycystic ovary syndrome: systematic review and meta-analysis | journal = BMJ | volume = 327 | issue = 7421 | pages = 951–953 | date = October 2003 | pmid = 14576245 | pmc = 259161 | doi = 10.1136/bmj.327.7421.951 }}</ref> [[Spironolactone]] can be used for its antiandrogenic effects, and the topical cream [[eflornithine]] can be used to reduce facial hair. A newer insulin resistance medication class, the [[thiazolidinedione]]s (glitazones), have shown equivalent efficacy to metformin, but metformin has a more favorable side effect profile.<ref>{{cite journal | vauthors = Li XJ, Yu YX, Liu CQ, Zhang W, Zhang HJ, Yan B, Wang LY, Yang SY, Zhang SH | display-authors = 6 | title = Metformin vs thiazolidinediones for treatment of clinical, hormonal and metabolic characteristics of polycystic ovary syndrome: a meta-analysis | journal = Clinical Endocrinology | volume = 74 | issue = 3 | pages = 332–339 | date = March 2011 | pmid = 21050251 | doi = 10.1111/j.1365-2265.2010.03917.x | s2cid = 19620846 }}</ref><ref>{{cite journal | vauthors = Grover A, Yialamas MA | title = Metformin or thiazolidinedione therapy in PCOS? | journal = Nature Reviews. Endocrinology | volume = 7 | issue = 3 | pages = 128–129 | date = March 2011 | pmid = 21283123 | doi = 10.1038/nrendo.2011.16 | s2cid = 26162421 | id = {{GALE|A250471047}} }}</ref> The United Kingdom's [[National Institute for Health and Clinical Excellence]] recommended in 2004 that women with PCOS and a [[body mass index]] above 25 be given metformin when other therapy has failed to produce results.<ref name="NICE2004">{{NICE | 11 | Fertility: assessment and treatment for people with fertility problems | 2004}}</ref><ref>{{cite web | vauthors = Balen A |title=Metformin therapy for the management of infertility in women with polycystic ovary syndrome |website=Scientific Advisory Committee Opinion Paper 13 |publisher=Royal College of Obstetricians and Gynaecologists |date=December 2008 |url=http://www.rcog.org.uk/files/rcog-corp/uploaded-files/SAC13metformin-minorrevision.pdf |access-date=2009-12-13 |url-status=dead |archive-url=https://www.webcitation.org/5m73m3kuM?url=http://www.rcog.org.uk/files/rcog-corp/uploaded-files/SAC13metformin-minorrevision.pdf |archive-date=2009-12-18 }}</ref> Metformin may not be effective in every type of PCOS, and therefore there is some disagreement about whether it should be used as a general first line therapy.<ref name="pmid19697191">{{cite journal | vauthors = Leeman L, Acharya U | title = The use of metformin in the management of polycystic ovary syndrome and associated anovulatory infertility: the current evidence | journal = Journal of Obstetrics and Gynaecology | volume = 29 | issue = 6 | pages = 467–472 | date = August 2009 | pmid = 19697191 | doi = 10.1080/01443610902829414 | s2cid = 3339588 }}</ref> In addition to this, metformin is associated with several unpleasant side effects: including abdominal pain, metallic taste in the mouth, diarrhoea and vomiting.<ref>{{cite web |author=NICE |title=Metformin Hydrochloride |website=National Institute for Care Excellence |publisher=NICE |date=December 2018 |url=https://bnf.nice.org.uk/drug/metformin-hydrochloride.html#sideEffects |access-date=2017-11-02 }}</ref> The use of [[statins]] in the management of underlying metabolic syndrome remains unclear.<ref name="Diagnosis and treatment of polycyst"/> |
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It can be difficult to become pregnant with PCOS because it causes irregular [[ovulation]]. Medications to induce fertility when trying to conceive include the ovulation inducer [[clomiphene]] or pulsatile [[leuprorelin]]. Evidence from randomised controlled trials suggests that in terms of live birth, metformin may be better than placebo, and metform plus clomiphene may be better than clomiphene alone, but that in both cases women may be more likely to experience gastrointestinal side effects with metformin.<ref>{{cite journal | vauthors = Sharpe A, Morley LC, Tang T, Norman RJ, Balen AH | title = Metformin for ovulation induction (excluding gonadotrophins) in women with polycystic ovary syndrome | journal = The Cochrane Database of Systematic Reviews | volume = 12 | pages = CD013505 | date = December 2019 | pmid = 31845767 | pmc = 6915832 | doi = 10.1002/14651858.CD013505 }}</ref> |
It can be difficult to become pregnant with PCOS<ref name="Pregnant Women With Polycystic Ovary Syndrome At Heart Disease Risk">{{cite web |title=Polycystic Ovary Syndrome |url=https://medanomaly.com/pregnant-women-with-polycystic-ovary-syndrome-at-heart-disease-risk/ |website=Medanomaly}}</ref> because it causes irregular [[ovulation]]. Medications to induce fertility when trying to conceive include the ovulation inducer [[clomiphene]] or pulsatile [[leuprorelin]]. Evidence from randomised controlled trials suggests that in terms of live birth, metformin may be better than placebo, and metform plus clomiphene may be better than clomiphene alone, but that in both cases women may be more likely to experience gastrointestinal side effects with metformin.<ref>{{cite journal | vauthors = Sharpe A, Morley LC, Tang T, Norman RJ, Balen AH | title = Metformin for ovulation induction (excluding gonadotrophins) in women with polycystic ovary syndrome | journal = The Cochrane Database of Systematic Reviews | volume = 12 | pages = CD013505 | date = December 2019 | pmid = 31845767 | pmc = 6915832 | doi = 10.1002/14651858.CD013505 }}</ref> |
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Metformin is thought to be safe to use during pregnancy ([[pregnancy category]] B in the US).<ref>{{cite journal | vauthors = Feig DS, Moses RG | title = Metformin therapy during pregnancy: good for the goose and good for the gosling too? | journal = Diabetes Care | volume = 34 | issue = 10 | pages = 2329–2330 | date = October 2011 | pmid = 21949224 | pmc = 3177745 | doi = 10.2337/dc11-1153 }}</ref> A review in 2014 concluded that the use of metformin does not increase the risk of major [[birth defect]]s in women treated with metformin during the first trimester.<ref name="CassinaDona2014">{{cite journal | vauthors = Cassina M, Donà M, Di Gianantonio E, Litta P, Clementi M | title = First-trimester exposure to metformin and risk of birth defects: a systematic review and meta-analysis | journal = Human Reproduction Update | volume = 20 | issue = 5 | pages = 656–669 | date = 1 September 2014 | pmid = 24861556 | doi = 10.1093/humupd/dmu022 | doi-access = free }}</ref> Liraglutide may reduce weight and waist circumference in people with PCOS more than other medications.<ref>{{cite journal | vauthors = Wang FF, Wu Y, Zhu YH, Ding T, Batterham RL, Qu F, Hardiman PJ | title = Pharmacologic therapy to induce weight loss in women who have obesity/overweight with polycystic ovary syndrome: a systematic review and network meta-analysis | journal = Obesity Reviews | volume = 19 | issue = 10 | pages = 1424–1445 | date = October 2018 | pmid = 30066361 | doi = 10.1111/obr.12720 | s2cid = 51891552 | url = https://discovery.ucl.ac.uk/id/eprint/10050648/1/Hardiman_revised%20MS%5B23061%5D.pdf }}</ref> |
Metformin is thought to be safe to use during pregnancy ([[pregnancy category]] B in the US).<ref>{{cite journal | vauthors = Feig DS, Moses RG | title = Metformin therapy during pregnancy: good for the goose and good for the gosling too? | journal = Diabetes Care | volume = 34 | issue = 10 | pages = 2329–2330 | date = October 2011 | pmid = 21949224 | pmc = 3177745 | doi = 10.2337/dc11-1153 }}</ref> A review in 2014 concluded that the use of metformin does not increase the risk of major [[birth defect]]s in women treated with metformin during the first trimester.<ref name="CassinaDona2014">{{cite journal | vauthors = Cassina M, Donà M, Di Gianantonio E, Litta P, Clementi M | title = First-trimester exposure to metformin and risk of birth defects: a systematic review and meta-analysis | journal = Human Reproduction Update | volume = 20 | issue = 5 | pages = 656–669 | date = 1 September 2014 | pmid = 24861556 | doi = 10.1093/humupd/dmu022 | doi-access = free }}</ref> Liraglutide may reduce weight and waist circumference in people with PCOS more than other medications.<ref>{{cite journal | vauthors = Wang FF, Wu Y, Zhu YH, Ding T, Batterham RL, Qu F, Hardiman PJ | title = Pharmacologic therapy to induce weight loss in women who have obesity/overweight with polycystic ovary syndrome: a systematic review and network meta-analysis | journal = Obesity Reviews | volume = 19 | issue = 10 | pages = 1424–1445 | date = October 2018 | pmid = 30066361 | doi = 10.1111/obr.12720 | s2cid = 51891552 | url = https://discovery.ucl.ac.uk/id/eprint/10050648/1/Hardiman_revised%20MS%5B23061%5D.pdf }}</ref> |
Revision as of 00:19, 20 June 2022
Polycystic ovary syndrome | |
---|---|
Other names | Hyperandrogenic anovulation (HA),[1] Stein-Leventhal syndrome[2] |
A polycystic ovary | |
Specialty | Gynecology, Endocrinology |
Symptoms | Irregular menstrual periods, heavy periods, excess hair, acne, pelvic pain, difficulty getting pregnant, patches of thick, darker, velvety skin[3] |
Complications | Type 2 diabetes, obesity, obstructive sleep apnea, heart disease, mood disorders, endometrial cancer[4] |
Duration | Long term[5] |
Causes | Genetic and environmental factors[6][7] |
Risk factors | Obesity, not enough exercise, family history[8] |
Diagnostic method | Based on anovulation, high androgen levels, ovarian cysts[4] |
Differential diagnosis | Adrenal hyperplasia, hypothyroidism, high blood levels of prolactin[9] |
Treatment | Weight loss, exercise[10][11] |
Medication | Birth control pills, metformin, anti-androgens[12] |
Frequency | 2% to 20% of women of childbearing age[8][13] |
Polycystic ovary syndrome, or PCOS, is the most common endocrine disorder in women of reproductive age.[14] The syndrome is named after the characteristic cysts which may form on the ovaries, though it is important to note that this is a sign and not the underlying cause of the disorder.[15]
Women with PCOS may experience irregular menstrual periods, heavy periods, excess hair, acne, pelvic pain, difficulty getting pregnant, and patches of thick, darker, velvety skin.[3] The primary characteristics of this syndrome include: hyperandrogenism, anovulation, insulin resistance, and neuroendocrine disruption.[16]
A review of the international evidence found that the prevalence of PCOS could be as high as 26% among some populations, though ranges between 4% and 18% are reported for general populations.[17][18][19] Despite its high prevalence, the exact cause of PCOS remains uncertain and there is no known cure.[18]
Definition
Two definitions are commonly used:
- NIH
- In 1990 a consensus workshop sponsored by the NIH/NICHD suggested that a person has PCOS if they have all of the following:[20]
- oligoovulation
- signs of androgen excess (clinical or biochemical)
- exclusion of other disorders that can result in menstrual irregularity and hyperandrogenism
- Rotterdam
In 2003 a consensus workshop sponsored by ESHRE/ASRM in Rotterdam indicated PCOS to be present if any 2 out of 3 criteria are met, in the absence of other entities that might cause these findings:[21][22][23]
- oligoovulation and/or anovulation
- excess androgen activity
- polycystic ovaries (by gynecologic ultrasound)
The Rotterdam definition is wider, including many more women, the most notable ones being women without androgen excess. Critics say that findings obtained from the study of women with androgen excess cannot necessarily be extrapolated to women without androgen excess.[24][25]
- Androgen Excess PCOS Society
- In 2006, the Androgen Excess PCOS Society suggested a tightening of the diagnostic criteria to all of the following:[21]
- excess androgen activity
- oligoovulation/anovulation and/or polycystic ovaries
- exclusion of other entities that would cause excess androgen activity
Signs and symptoms
Signs and symptoms of PCOS include irregular or no menstrual periods, heavy periods, excess body and facial hair, acne, pelvic pain, difficulty getting pregnant, and patches of thick, darker, velvety skin.[3] This metabolic, endocrine and reproductive disorder is not universally defined, but the most common symptoms are irregular or absent periods, ovarian cysts, enlarged ovaries, excess androgen, weight gain and hirsutism.[26] Associated conditions include type 2 diabetes, obesity, obstructive sleep apnea, heart disease, mood disorders, and endometrial cancer.[4] This disease is related to the number of follicles per ovary each month growing from the average range of 6 to 8 to double, triple or more. it is important to distinguish between PCOS (the syndrome) and a woman with PCO (polycystic ovaries): to have PCOS, a woman must have at least two of these three symptoms (PCO, anovulation/oligoovulation and hyperandrogenism). This means that a woman can have PCOS (displaying anovulation and hyperandrogenism) without having PCO. Conversely, having PCO does not indicate that a person necessarily has PCOS.[citation needed]
Common signs and symptoms of PCOS include the following:
- Menstrual disorders: PCOS mostly produces oligomenorrhea (fewer than nine menstrual periods in a year) or amenorrhea (no menstrual periods for three or more consecutive months), but other types of menstrual disorders may also occur.[21]
- Infertility: This generally results directly from chronic anovulation (lack of ovulation).[21]
- High levels of masculinizing hormones: Known as hyperandrogenism, the most common signs are acne and hirsutism (male pattern of hair growth, such as on the chin or chest), but it may produce hypermenorrhea (heavy and prolonged menstrual periods), androgenic alopecia (increased hair thinning or diffuse hair loss), or other symptoms.[21][27] Approximately three-quarters of women with PCOS (by the diagnostic criteria of NIH/NICHD 1990) have evidence of hyperandrogenemia.[28]
- Metabolic syndrome: This appears as a tendency towards central obesity and other symptoms associated with insulin resistance, including low energy levels and food cravings.[21][29] Serum insulin, insulin resistance, and homocysteine levels are higher in women with PCOS.[30]
- Polycystic Ovaries: Ovaries might get enlarged and comprise follicles surrounding the eggs. As result, ovaries might fail to function regularly.
Women with PCOS tend to have central obesity, but studies are conflicting as to whether visceral and subcutaneous abdominal fat is increased, unchanged, or decreased in women with PCOS relative to reproductively normal women with the same body mass index.[31] In any case, androgens, such as testosterone, androstanolone (dihydrotestosterone), and nandrolone decanoate have been found to increase visceral fat deposition in both female animals and women.[32]
Although 80% of PCOS presents in women with obesity, 20% of women diagnosed with the disease are non-obese or "lean" women.[33] However, obese women that have PCOS have a higher risk of adverse outcomes, such as hypertension, insulin resistance, metabolic syndrome, and endometrial hyperplasia.[34]
Even though most women with PCOS are overweight or obese, it is important to acknowledge that non-overweight women can also be diagnosed with PCOS. Up to 30% of women diagnosed with PCOS maintain a normal weight before and after diagnosis. "Lean" women still face the various symptoms of PCOS with the added challenges of having their symptoms properly addressed and recognized. Lean women often go undiagnosed for years, and usually are diagnosed after struggles to conceive.[35] Lean women are likely to have a missed diagnosis of diabetes and cardiovascular disease. These women also have an increased risk of developing insulin resistance, despite not being overweight. Lean women are often taken less seriously with their diagnosis of PCOS, and also face challenges finding appropriate treatment options. This is because most treatment options are limited to approaches of losing weight and healthy dieting.[36]
Associated conditions
Many individuals aren't under the impression that the first warning sign is usually a change in appearance. But there are also manifestations of mental health problems, such as anxiety, depression, and eating disorders.[26]
A diagnosis of PCOS suggests an increased risk of the following:
- Endometrial hyperplasia and endometrial cancer (cancer of the uterine lining) are possible, due to overaccumulation of uterine lining, and also lack of progesterone, resulting in prolonged stimulation of uterine cells by estrogen.[20][37] It is not clear whether this risk is directly due to the syndrome or from the associated obesity, hyperinsulinemia, and hyperandrogenism.[38][39][40]
- Insulin resistance/Type II diabetes. A review published in 2010 concluded that women with PCOS have an elevated prevalence of insulin resistance and type II diabetes, even when controlling for body mass index (BMI).[20][41] PCOS also makes a woman at higher risk for diabetes.[42]
- High blood pressure, in particular if obese or during pregnancy[43]
- Depression and anxiety[21][44]
- Dyslipidemia – disorders of lipid metabolism — cholesterol and triglycerides. Women with PCOS show a decreased removal of atherosclerosis-inducing remnants, seemingly independent of insulin resistance/Type II diabetes.[45]
- Cardiovascular disease,[20] with a meta-analysis estimating a 2-fold risk of arterial disease for women with PCOS relative to women without PCOS, independent of BMI.[46]
- Strokes[20]
- Weight gain
- Miscarriage[47][48]
- Sleep apnea, particularly if obesity is present
- Non-alcoholic fatty liver disease, particularly if obesity is present
- Acanthosis nigricans (patches of darkened skin under the arms, in the groin area, on the back of the neck)[20]
- Autoimmune thyroiditis[citation needed]
- Some studies report a higher incidence of PCOS among transgender men (prior to taking testosterone),[49][50][51] though not all have not found the same association.[52] People with PCOS in general are also reportedly more likely to see themselves as "sexually undifferentiated" or "androgynous" and "less likely to identify with a female gender scheme."[53][52]
The risk of ovarian cancer and breast cancer is not significantly increased overall.[37]
Cause
PCOS is caused by a combination of genetic and environmental factors.[6][7][54] Risk factors include obesity, a lack of physical exercise, and a family history of someone with the condition.[8] Transgender men may also experience a higher than expected rate of PCOS.[55][56] Diagnosis is based on two of the following three findings: anovulation, high androgen levels, and ovarian cysts.[4] Cysts may be detectable by ultrasound.[9] Other conditions that produce similar symptoms include adrenal hyperplasia, hypothyroidism, and high blood levels of prolactin.[9]
PCOS is a heterogeneous disorder of uncertain cause.[57][58] There is some evidence that it is a genetic disease. Such evidence includes the familial clustering of cases, greater concordance in monozygotic compared with dizygotic twins and heritability of endocrine and metabolic features of PCOS.[7][57][58] There is some evidence that exposure to higher than typical levels of androgens and the anti-Müllerian hormone (AMH) in utero increases the risk of developing PCOS in later life.[59]
Genetics
The genetic component appears to be inherited in an autosomal dominant fashion with high genetic penetrance but variable expressivity in females; this means that each child has a 50% chance of inheriting the predisposing genetic variant(s) from a parent, and, if a daughter receives the variant(s), the daughter will have the disease to some extent.[58][60][61][62] The genetic variant(s) can be inherited from either the father or the mother, and can be passed along to both sons (who may be asymptomatic carriers or may have symptoms such as early baldness and/or excessive hair) and daughters, who will show signs of PCOS.[60][62] The phenotype appears to manifest itself at least partially via heightened androgen levels secreted by ovarian follicle theca cells from women with the allele.[61] The exact gene affected has not yet been identified.[7][58][63] In rare instances, single-gene mutations can give rise to the phenotype of the syndrome.[64] Current understanding of the pathogenesis of the syndrome suggests, however, that it is a complex multigenic disorder.[65]
Due to the scarcity of large-scale screening studies, the prevalence of endometrial abnormalities in PCOS remains unknown, though women with the condition may be at increased risk for endometrial hyperplasia and carcinoma as well as menstrual dysfunction and infertility.
The severity of PCOS symptoms appears to be largely determined by factors such as obesity.[7][21][66] PCOS has some aspects of a metabolic disorder, since its symptoms are partly reversible. Even though considered as a gynecological problem, PCOS consists of 28 clinical symptoms.[citation needed]
Even though the name suggests that the ovaries are central to disease pathology, cysts are a symptom instead of the cause of the disease. Some symptoms of PCOS will persist even if both ovaries are removed; the disease can appear even if cysts are absent. Since its first description by Stein and Leventhal in 1935, the criteria of diagnosis, symptoms, and causative factors are subject to debate. Gynecologists often see it as a gynecological problem, with the ovaries being the primary organ affected. However, recent insights show a multisystem disorder, with the primary problem lying in hormonal regulation in the hypothalamus, with the involvement of many organs. The term PCOS is used due to the fact that there is a wide spectrum of symptoms possible. It is common to have polycystic ovaries without having PCOS; approximately 20% of European women have polcystic ovaries, but most of those women do not have PCOS.[15]
Environment
PCOS may be related to or worsened by exposures during the prenatal period,[67][68][69] epigenetic factors, environmental impacts (especially industrial endocrine disruptors, such as bisphenol A and certain drugs)[70][71][72] and the increasing rates of obesity.[71]
Endocrine disruptors are defined as chemicals that can interfere with the Endocrine system by mimicking hormones such as estrogen. However, additional research is needed to assess the role that endocrine disruptors may play in disrupting reproductive health in women and possibly triggering or exacerbating PCOS and its related symptoms.[73]
Pathogenesis
Polycystic ovaries develop when the ovaries are stimulated to produce excessive amounts of androgenic hormones, in particular testosterone, by either one or a combination of the following (almost certainly combined with genetic susceptibility):[61]
- the release of excessive luteinizing hormone (LH) by the anterior pituitary gland[74]
- through high levels of insulin in the blood (hyperinsulinaemia) in women whose ovaries are sensitive to this stimulus
The syndrome acquired its most widely used name due to the common sign on ultrasound examination of multiple (poly) ovarian cysts. These "cysts" are in fact immature ovarian follicles. The follicles have developed from primordial follicles, but this development has stopped ("arrested") at an early stage, due to the disturbed ovarian function. The follicles may be oriented along the ovarian periphery, appearing as a 'string of pearls' on ultrasound examination.[citation needed]
Women with PCOS experience an increased frequency of hypothalamic GnRH pulses, which in turn results in an increase in the LH/FSH ratio.[75]
A majority of women with PCOS have insulin resistance and/or are obese. Their elevated insulin levels contribute to or cause the abnormalities seen in the hypothalamic-pituitary-ovarian axis that lead to PCOS. Hyperinsulinemia increases GnRH pulse frequency; LH over FSH dominance; increased ovarian androgen production; decreased follicular maturation; and decreased SHBG binding. Furthermore, excessive insulin, acting through its cognate receptor in the presence of component cAMP signalling, upregulates 17α-hydroxylase activity via PI3K, 17α-hydroxylase activity being responsible for synthesising androgen precursors.[further explanation needed] The combined effects of hyperinsulinemia contribute to an increased risk of PCOS.[76] Insulin resistance is a common finding among women with a normal weight as well as among overweight women.[10][21][30]
Adipose tissue possesses aromatase, an enzyme that converts androstenedione to estrone and testosterone to estradiol. The excess of adipose tissue in obese women creates the paradox of having both excess androgens (which are responsible for hirsutism and virilization) and excess estrogens (which inhibit FSH via negative feedback).[citation needed]
PCOS may be associated with chronic inflammation,[77] with several investigators correlating inflammatory mediators with anovulation and other PCOS symptoms.[78][79] Similarly, there seems to be a relation between PCOS and an increased level of oxidative stress.[80]
Diagnosis
Not everyperson with PCOS has polycystic ovaries (PCO), nor does everyone with ovarian cysts have PCOS; although a pelvic ultrasound is a major diagnostic tool, it is not the only one.[81] The diagnosis is fairly straightforward using the Rotterdam criteria, even when the syndrome is associated with a wide range of symptoms.[citation needed]
-
Transvaginal ultrasound scan of polycystic ovary
-
Polycystic ovary as seen on sonography
Differential diagnosis
Other causes of irregular or absent menstruation and hirsutism, such as hypothyroidism, congenital adrenal hyperplasia (21-hydroxylase deficiency), Cushing's syndrome, hyperprolactinemia, androgen-secreting neoplasms, and other pituitary or adrenal disorders, should be investigated.[21][23][82]
Assessment and testing
Standard assessment
- History-taking, specifically for menstrual pattern, obesity, hirsutism and acne. A clinical prediction rule found that these four questions can diagnose PCOS with a sensitivity of 77.1% (95% confidence interval [CI] 62.7%–88.0%) and a specificity of 93.8% (95% CI 82.8%–98.7%).[83]
- Gynecologic ultrasonography, specifically looking for small ovarian follicles. These are believed to be the result of disturbed ovarian function with failed ovulation, reflected by the infrequent or absent menstruation that is typical of the condition. In a normal menstrual cycle, one egg is released from a dominant follicle – in essence, a cyst that bursts to release the egg. After ovulation, the follicle remnant is transformed into a progesterone-producing corpus luteum, which shrinks and disappears after approximately 12–14 days. In PCOS, there is a so-called "follicular arrest"; i.e., several follicles develop to a size of 5–7 mm, but not further. No single follicle reaches the preovulatory size (16 mm or more). According to the Rotterdam criteria, which are widely used for diagnosis of PCOS,[10] 12 or more small follicles should be seen in a suspect ovary on ultrasound examination.[20] More recent research suggests that there should be at least 25 follicles in an ovary to designate it as having polycystic ovarian morphology (PCOM) in women aged 18–35 years.[84] The follicles may be oriented in the periphery, giving the appearance of a 'string of pearls'.[85] If a high-resolution transvaginal ultrasonography machine is not available, an ovarian volume of at least 10 ml is regarded as an acceptable definition of having polycystic ovarian morphology. rather than follicle count.[84]
- Laparoscopic examination may reveal a thickened, smooth, pearl-white outer surface of the ovary. (This would usually be an incidental finding if laparoscopy were performed for some other reason, as it would not be routine to examine the ovaries in this way to confirm a diagnosis of PCOS.)[citation needed]
- Serum (blood) levels of androgens, including androstenedione and testosterone may be elevated.[21] Dehydroepiandrosterone sulfate (DHEA-S) levels above 700–800 µg/dL are highly suggestive of adrenal dysfunction because DHEA-S is made exclusively by the adrenal glands.[86][82] The free testosterone level is thought to be the best measure,[82][87] with approximately 60 per cent of PCOS patients demonstrating supranormal levels.[28]
Some other blood tests are suggestive but not diagnostic. The ratio of LH (Luteinizing hormone) to FSH (Follicle-stimulating hormone), when measured in international units, is elevated in women with PCOS. Common cut-offs to designate abnormally high LH/FSH ratios are 2:1[88] or 3:1[82] as tested on Day 3 of the menstrual cycle. The pattern is not very sensitive; a ratio of 2:1 or higher was present in less than 50% of women with PCOS in one study.[88] There are often low levels of sex hormone-binding globulin,[82] in particular among obese or overweight women.[89] Anti-Müllerian hormone (AMH) is increased in PCOS, and may become part of its diagnostic criteria.[90][91][92]
Glucose tolerance testing
- 2-hour oral glucose tolerance test (GTT) in women with risk factors (obesity, family history, history of gestational diabetes)[21] may indicate impaired glucose tolerance (insulin resistance) in 15–33% of women with PCOS.[82] Frank diabetes can be seen in 65–68% of women with this condition.[citation needed] Insulin resistance can be observed in both normal weight and overweight people, although it is more common in the latter (and in those matching the stricter NIH criteria for diagnosis); 50–80% of people with PCOS may have insulin resistance at some level.[21]
- Fasting insulin level or GTT with insulin levels (also called IGTT). Elevated insulin levels have been helpful to predict response to medication and may indicate women needing higher doses of metformin or the use of a second medication to significantly lower insulin levels. Elevated blood sugar and insulin values do not predict who responds to an insulin-lowering medication, low-glycemic diet, and exercise. Many women with normal levels may benefit from combination therapy. A hypoglycemic response in which the two-hour insulin level is higher and the blood sugar lower than fasting is consistent with insulin resistance. A mathematical derivation known as the HOMAI, calculated from the fasting values in glucose and insulin concentrations, allows a direct and moderately accurate measure of insulin sensitivity (glucose-level x insulin-level/22.5).[citation needed]
Management
The primary treatments for PCOS include lifestyle changes and use of medications.[93]
Goals of treatment may be considered under four categories:
- Lowering of insulin resistance
- Restoration of fertility
- Treatment of hirsutism or acne
- Restoration of regular menstruation, and prevention of endometrial hyperplasia and endometrial cancer
In each of these areas, there is considerable debate as to the optimal treatment. One of the major factors undelying the debate is the lack of large-scale clinical trials comparing different treatments. Smaller trials tend to be less reliable and hence may produce conflicting results. General interventions that help to reduce weight or insulin resistance can be beneficial for all these aims, because they address what is believed to be the underlying cause.[citation needed] As PCOS appears to cause significant emotional distress, appropriate support may be useful.[94]
Diet
Where PCOS is associated with overweight or obesity, successful weight loss is the most effective method of restoring normal ovulation/menstruation. The American Association of Clinical Endocrinologists guidelines recommend a goal of achieving 5 to 15% weight loss or more, which improves insulin resistance and all[clarification needed] hormonal disorders.[95] Still, many women find it very difficult to achieve and sustain significant weight loss. Insulin resistance itself can cause increased food cravings and lower energy levels, which can make it difficult to lose weight on a regular weight-loss diet.[29] A scientific review in 2013 found similar improvements in weight, body composition and pregnancy rate, menstrual regularity, ovulation, hyperandrogenism, insulin resistance, lipids, and quality of life to occur with weight loss, independent of diet composition.[96] Still, a low GI diet, in which a significant portion of total carbohydrates is obtained from fruit, vegetables, and whole-grain sources, has resulted in greater menstrual regularity than a macronutrient-matched healthy diet.[96]
Vitamin D deficiency may play some role in the development of the metabolic syndrome, and treatment of any such deficiency is indicated.[97][98] However, a systematic review of 2015 found no evidence that vitamin D supplementation reduced or mitigated metabolic and hormonal dysregulations in PCOS.[99] As of 2012, interventions using dietary supplements to correct metabolic deficiencies in people with PCOS had been tested in small, uncontrolled and nonrandomized clinical trials; the resulting data are insufficient to recommend their use.[100]
Medications
Medications for PCOS include oral contraceptives and metformin. The oral contraceptives increase sex hormone binding globulin production, which increases binding of free testosterone. This reduces the symptoms of hirsutism caused by high testosterone and regulates return to normal menstrual periods. Metformin is a medication commonly used in type 2 diabetes mellitus to reduce insulin resistance, and is used off label (in the UK, US, AU and EU) to treat insulin resistance seen in PCOS. In many cases, metformin also supports ovarian function and return to normal ovulation.[97][101] Spironolactone can be used for its antiandrogenic effects, and the topical cream eflornithine can be used to reduce facial hair. A newer insulin resistance medication class, the thiazolidinediones (glitazones), have shown equivalent efficacy to metformin, but metformin has a more favorable side effect profile.[102][103] The United Kingdom's National Institute for Health and Clinical Excellence recommended in 2004 that women with PCOS and a body mass index above 25 be given metformin when other therapy has failed to produce results.[104][105] Metformin may not be effective in every type of PCOS, and therefore there is some disagreement about whether it should be used as a general first line therapy.[106] In addition to this, metformin is associated with several unpleasant side effects: including abdominal pain, metallic taste in the mouth, diarrhoea and vomiting.[107] The use of statins in the management of underlying metabolic syndrome remains unclear.[93]
It can be difficult to become pregnant with PCOS[108] because it causes irregular ovulation. Medications to induce fertility when trying to conceive include the ovulation inducer clomiphene or pulsatile leuprorelin. Evidence from randomised controlled trials suggests that in terms of live birth, metformin may be better than placebo, and metform plus clomiphene may be better than clomiphene alone, but that in both cases women may be more likely to experience gastrointestinal side effects with metformin.[109]
Metformin is thought to be safe to use during pregnancy (pregnancy category B in the US).[110] A review in 2014 concluded that the use of metformin does not increase the risk of major birth defects in women treated with metformin during the first trimester.[111] Liraglutide may reduce weight and waist circumference in people with PCOS more than other medications.[112]
Infertility
Not all women with PCOS have difficulty becoming pregnant. But some women with PCOS may have difficulty getting pregnant since their body does not produce the hormones necessary for regular ovulation.[113] PCOS might also increase the risk of miscarriage or premature delivery. However, it is possible to have a normal pregnancy. Including medical care and a healthy lifestyle to follow.
For those that do, anovulation or infrequent ovulation is a common cause and PCOS is the main cause of anovulatory infertility.[114] Other factors include changed levels of gonadotropins, hyperandrogenemia, and hyperinsulinemia.[115] Like women without PCOS, women with PCOS that are ovulating may be infertile due to other causes, such as tubal blockages due to a history of sexually transmitted diseases.[116]
For overweight anovulatory women with PCOS, weight loss and diet adjustments, especially to reduce the intake of simple carbohydrates, are associated with resumption of natural ovulation.[citation needed] Digital health interventions have been shown to be particularly effective in providing combined therapy to manage PCOS through both lifestyle changes and medication.[citation needed]
For those women that after weight loss still are anovulatory or for anovulatory lean women, then the medications letrozole and clomiphene citrate are the principal treatments used to promote ovulation.[117][118][119] Previously, the anti-diabetes medication metformin was recommended treatment for anovulation, but it appears less effective than letrozole or clomiphene.[120][121]
For women not responsive to letrozole or clomiphene and diet and lifestyle modification, there are options available including assisted reproductive technology procedures such as controlled ovarian hyperstimulation with follicle-stimulating hormone (FSH) injections followed by in vitro fertilisation (IVF).[citation needed]
Though surgery is not commonly performed, the polycystic ovaries can be treated with a laparoscopic procedure called "ovarian drilling" (puncture of 4–10 small follicles with electrocautery, laser, or biopsy needles), which often results in either resumption of spontaneous ovulations[97] or ovulations after adjuvant treatment with clomiphene or FSH.[citation needed] (Ovarian wedge resection is no longer used as much due to complications such as adhesions and the presence of frequently effective medications.) There are, however, concerns about the long-term effects of ovarian drilling on ovarian function.[97]
Mental Health
Although women with PCOS are far more likely to have depression than women without, the evidence for anti-depressant use in women with PCOS remains inconclusive.[122] However, the pathophysiology of depression and mental stress during PCOS is linked to various changes including psychological changes such as high activity of pro-inflammatory markers and immune system during stress.[123]
PCOS is associated with other mental health related conditions besides depression such as Anxiety, Bipolar disorder, and Obsessive–compulsive disorder.[124]
Hirsutism and acne
When appropriate (e.g., in women of child-bearing age who require contraception), a standard contraceptive pill is frequently effective in reducing hirsutism.[97] Progestogens such as norgestrel and levonorgestrel should be avoided due to their androgenic effects.[97] Metformin combined with an oral contraceptive may be more effective than either metformin or the oral contraceptive on its own.[125]
Other medications with anti-androgen effects include flutamide,[126] and spironolactone,[97] which can give some improvement in hirsutism. Metformin can reduce hirsutism, perhaps by reducing insulin resistance, and is often used if there are other features such as insulin resistance, diabetes, or obesity that should also benefit from metformin. Eflornithine (Vaniqa) is a medication that is applied to the skin in cream form, and acts directly on the hair follicles to inhibit hair growth. It is usually applied to the face.[97] 5-alpha reductase inhibitors (such as finasteride and dutasteride) may also be used;[127] they work by blocking the conversion of testosterone to dihydrotestosterone (the latter of which responsible for most hair growth alterations and androgenic acne).
Although these agents have shown significant efficacy in clinical trials (for oral contraceptives, in 60–100% of individuals[97]), the reduction in hair growth may not be enough to eliminate the social embarrassment of hirsutism, or the inconvenience of plucking or shaving. Individuals vary in their response to different therapies. It is usually worth trying other medications if one does not work, but medications do not work well for all individuals.[citation needed]
Menstrual irregularity
If fertility is not the primary aim, then menstruation can usually be regulated with a contraceptive pill.[97] The purpose of regulating menstruation, in essence, is for the woman's convenience, and perhaps her sense of well-being; there is no medical requirement for regular periods, as long as they occur sufficiently often.[citation needed]
If a regular menstrual cycle is not desired, then therapy for an irregular cycle is not necessarily required. Most experts say that, if a menstrual bleed occurs at least every three months, then the endometrium (womb lining) is being shed sufficiently often to prevent an increased risk of endometrial abnormalities or cancer.[128] If menstruation occurs less often or not at all, some form of progestogen replacement is recommended.[127]
Alternative medicine
A 2017 review concluded that while both myo-inositol and D-chiro-inositols may regulate menstrual cycles and improve ovulation, there is a lack of evidence regarding effects on the probability of pregnancy.[129][130] A 2012 and 2017 review have found myo-inositol supplementation appears to be effective in improving several of the hormonal disturbances of PCOS.[131][132] Myo-inositol reduces the amount of gonadotropins and the length of controlled ovarian hyperstimulation in women undergoing in vitro fertilization.[133] A 2011 review found not enough evidence to conclude any beneficial effect from D-chiro-inositol.[134] There is insufficient evidence to support the use of acupuncture, current studies are inconclusive and there's a need for additional randomized controlled trials.[135][136]
Treatment
PCOS has no cure, as of 2020.[5] Treatment may involve lifestyle changes such as weight loss and exercise.[10][11] Birth control pills may help with improving the regularity of periods, excess hair growth, and acne.[12] Metformin and anti-androgens may also help.[12] Other typical acne treatments and hair removal techniques may be used.[12] Efforts to improve fertility include weight loss, clomiphene, or metformin.[137] In vitro fertilization is used by some in whom other measures are not effective.[137]
Epidemiology
PCOS is the most common endocrine disorder among women between the ages of 18 and 44.[21] It affects approximately 2% to 20% of this age group depending on how it is defined.[8][13] When someone is infertile due to lack of ovulation, PCOS is the most common cause and could guide to patients' diagnosis.[4] The earliest known description of what is now recognized as PCOS dates from 1721 in Italy.[138]
The prevalence of PCOS depends on the choice of diagnostic criteria. The World Health Organization estimates that it affects 116 million women worldwide as of 2010 (3.4% of women).[139] Another estimate indicates that 7% of women of reproductive age are affected.[140] Another study using the Rotterdam criteria found that about 18% of women had PCOS, and that 70% of them were previously undiagnosed.[21] Prevalence also varies across countries due to lack of large-scale scientific studies; India, for example, has a purported rate of 1 in 5 women having PCOS.[141]
There are few studies that have investigated the racial differences in cardiometabolic factors in women with PCOS. There is also limited data on the racial differences in the risk of metabolic syndrome and cardiovascular disease in adolescents and young adults with PCOS.[142] The first study to comprehensively examine racial differences discovered notable racial differences in risk factors for cardiovascular disease. African American women were found to be significantly more obese, with a significantly higher prevalence of metabolic syndrome compared to white adult women with PCOS.[143] It is important for the further research of racial differences among women with PCOS, to ensure that every woman that is affected by PCOS has the available resources for management.
Ultrasonographic findings of polycystic ovaries are found in 8–25% of women non-affected by the syndrome.[144][145][146][147] 14% women on oral contraceptives are found to have polycystic ovaries.[145] Ovarian cysts are also a common side effect of levonorgestrel-releasing intrauterine devices (IUDs).[148]
There are few studies that have investigated the racial differences in cardiometabolic factors in women with PCOS.[citation needed]
History
The condition was first described in 1935 by American gynecologists Irving F. Stein, Sr. and Michael L. Leventhal, from whom its original name of Stein–Leventhal syndrome is taken.[81][20] Stein and Leventhal first described PCOS as an endocrine disorder in the United States, and since then, it has become recognized as one of the most common causes of oligo ovulatory infertility among women.[37]
The earliest published description of a person with what is now recognized as PCOS was in 1721 in Italy.[138] Cyst-related changes to the ovaries were described in 1844.[138]
Etymology
Other names for this syndrome include polycystic ovarian syndrome, polycystic ovary disease, functional ovarian hyperandrogenism, ovarian hyperthecosis, sclerocystic ovary syndrome, and Stein–Leventhal syndrome. The eponymous last option is the original name; it is now used, if at all, only for the subset of women with all the symptoms of amenorrhea with infertility, hirsutism, and enlarged polycystic ovaries.[81]
Most common names for this disease derive from a typical finding on medical images, called a polycystic ovary. A polycystic ovary has an abnormally large number of developing eggs visible near its surface, looking like many small cysts.[81]
Society and culture
In 2005, 4 million cases of PCOS were reported in the US, costing $4.36 billion in healthcare costs.[149] In 2016 out of the National Institute Health's research budget of $32.3 billion for that year, 0.1% was spent on PCOS research.[150] Among those aged between 14 and 44, PCOS is conservatively estimated to cost $4.37 billion per year.[22]
As opposed to women in the general population, women with PCOS experience higher rates of depression and anxiety. International guidelines and Indian guidelines suggest psychosocial factors should be considered in women with PCOS, as well as screenings for depression and anxiety.[151] Globally, this aspect has been increasingly focused on because it reflects the true impact of PCOS on the lives of patients. Research shows that PCOS adversely impacts a patient's quality of life.[151]
Public Figures
A number of celebrities and public figures have spoken about their experiences with PCOS, including:
- Victoria Beckham[152]
- Harnaam Kaur[153]
- Chrisette Michele[154]
- Keke Palmer[155]
- Daisy Ridley[156]
- Sasha Pieterse
See also
- Androgen-dependent syndromes
- PCOS Challenge (reality television series)
References
- ^ Kollmann M, Martins WP, Raine-Fenning N (2014). "Terms and thresholds for the ultrasound evaluation of the ovaries in women with hyperandrogenic anovulation". Human Reproduction Update. 20 (3): 463–464. doi:10.1093/humupd/dmu005. PMID 24516084.
- ^ Legro RS (2017). "Stein-Leventhal syndrome". Encyclopedia Britannica. Retrieved 30 January 2021.[better source needed]
- ^ a b c "What are the symptoms of PCOS?". Eunice Kennedy Shriver National Institute of Child Health and Human Development.
- ^ a b c d e "Polycystic Ovary Syndrome (PCOS): Condition Information". National Institute of Child Health and Human Development. January 31, 2017. Retrieved 19 November 2018.
- ^ a b "Is there a cure for PCOS?". Eunice Kennedy Shriver National Institute of Child Health and Human Development.
- ^ a b De Leo V, Musacchio MC, Cappelli V, Massaro MG, Morgante G, Petraglia F (July 2016). "Genetic, hormonal and metabolic aspects of PCOS: an update". Reproductive Biology and Endocrinology (Review). 14 (1): 38. doi:10.1186/s12958-016-0173-x. PMC 4947298. PMID 27423183.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ a b c d e Diamanti-Kandarakis E, Kandarakis H, Legro RS (August 2006). "The role of genes and environment in the etiology of PCOS". Endocrine. 30 (1): 19–26. doi:10.1385/ENDO:30:1:19. PMID 17185788. S2CID 21220430.
- ^ a b c d "What causes PCOS?". Eunice Kennedy Shriver National Institute of Child Health and Human Development.
- ^ a b c "How do health care providers diagnose PCOS?". Eunice Kennedy Shriver National Institute of Child Health and Human Development.
- ^ a b c d Mortada R, Williams T (August 2015). "Metabolic Syndrome: Polycystic Ovary Syndrome". FP Essentials (Review). 435: 30–42. PMID 26280343.
- ^ a b Giallauria F, Palomba S, Vigorito C, Tafuri MG, Colao A, Lombardi G, Orio F (July 2009). "Androgens in polycystic ovary syndrome: the role of exercise and diet". Seminars in Reproductive Medicine (Review). 27 (4): 306–315. doi:10.1055/s-0029-1225258. PMID 19530064.
- ^ a b c d National Institutes of Health (NIH) (2014-07-14). "Treatments to Relieve Symptoms of PCOS". Archived from the original on 2 April 2015. Retrieved 13 March 2015.
- ^ a b Pal L, ed. (2013). "Diagnostic Criteria and Epidemiology of PCOS". Polycystic Ovary Syndrome Current and Emerging Concepts. Dordrecht: Springer. p. 7. ISBN 9781461483946. Archived from the original on 2017-09-10.
- ^ Goodman NF, Cobin RH, Futterweit W, Glueck JS, Legro RS, Carmina E (November 2015). "American Association of Clinical Endocrinologists, American College of Endocrinology, and androgen excess and PCOS society disease state clinical review: guide to the best practices in the evaluation and treatment of polycystic ovary syndrome-part 1". Endocrine Practice. 21 (11): 1291–1300. doi:10.4158/EP15748.DSC. PMID 26509855.
- ^ a b Dunaif A, Fauser BC (November 2013). "Renaming PCOS--a two-state solution". The Journal of Clinical Endocrinology and Metabolism. 98 (11): 4325–4328. doi:10.1210/jc.2013-2040. PMC 3816269. PMID 24009134.
Around 20% of European women have polycystic ovaries (the prevalence is even higher in some other populations) but approximately two-thirds of these women do not have PCOS
- ^ Crespo RP, Bachega TA, Mendonça BB, Gomes LG (June 2018). "An update of genetic basis of PCOS pathogenesis". Archives of Endocrinology and Metabolism. 62 (3): 352–361. doi:10.20945/2359-3997000000049. PMID 29972435. S2CID 49681196.
- ^ Muscogiuri G, Altieri B, de Angelis C, Palomba S, Pivonello R, Colao A, Orio F (September 2017). "Shedding new light on female fertility: The role of vitamin D". Reviews in Endocrine & Metabolic Disorders. 18 (3): 273–283. doi:10.1007/s11154-017-9407-2. PMID 28102491. S2CID 33422072.
- ^ a b Lentscher JA, Slocum B, Torrealday S (March 2021). "Polycystic Ovarian Syndrome and Fertility". Clinical Obstetrics and Gynecology. 64 (1): 65–75. doi:10.1097/GRF.0000000000000595. PMID 33337743. S2CID 229323594.
- ^ Wolf WM, Wattick RA, Kinkade ON, Olfert MD (November 2018). "Geographical Prevalence of Polycystic Ovary Syndrome as Determined by Region and Race/Ethnicity". International Journal of Environmental Research and Public Health. 15 (11): 2589. doi:10.3390/ijerph15112589. PMC 6266413. PMID 30463276.
indigenous Australian women could have a prevalence as high as 26%
- ^ a b c d e f g h Polycystic Ovarian Syndrome at eMedicine
- ^ a b c d e f g h i j k l m n o Teede H, Deeks A, Moran L (June 2010). "Polycystic ovary syndrome: a complex condition with psychological, reproductive and metabolic manifestations that impacts on health across the lifespan". BMC Medicine. 8 (1): 41. doi:10.1186/1741-7015-8-41. PMC 2909929. PMID 20591140.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ a b Azziz R (March 2006). "Controversy in clinical endocrinology: diagnosis of polycystic ovarian syndrome: the Rotterdam criteria are premature". The Journal of Clinical Endocrinology and Metabolism. 91 (3): 781–785. doi:10.1210/jc.2005-2153. PMID 16418211.
- ^ a b Rotterdam ESHRE/ASRM-Sponsored PCOS consensus workshop group (January 2004). "Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS)". Human Reproduction. 19 (1): 41–47. doi:10.1093/humrep/deh098. PMID 14688154.
- ^ Carmina E (February 2004). "Diagnosis of polycystic ovary syndrome: from NIH criteria to ESHRE-ASRM guidelines". Minerva Ginecologica. 56 (1): 1–6. PMID 14973405. NAID 10025610607.
- ^ Hart R, Hickey M, Franks S (October 2004). "Definitions, prevalence and symptoms of polycystic ovaries and polycystic ovary syndrome". Best Practice & Research. Clinical Obstetrics & Gynaecology. 18 (5): 671–683. doi:10.1016/j.bpobgyn.2004.05.001. PMID 15380140.
- ^ a b "What We Talk About When We Talk About PCOS". www.vice.com. Retrieved 2022-01-19.
- ^ Cortet-Rudelli C, Dewailly D (Sep 21, 2006). "Diagnosis of Hyperandrogenism in Female Adolescents". Hyperandrogenism in Adolescent Girls. Armenian Health Network, Health.am. Archived from the original on 2007-09-30. Retrieved 2006-11-21.
- ^ a b Huang A, Brennan K, Azziz R (April 2010). "Prevalence of hyperandrogenemia in the polycystic ovary syndrome diagnosed by the National Institutes of Health 1990 criteria". Fertility and Sterility. 93 (6): 1938–1941. doi:10.1016/j.fertnstert.2008.12.138. PMC 2859983. PMID 19249030.
- ^ a b "Having Trouble Losing Weight or Finding the Right Diet for PCOS? Learn about Insulin Resistance". Veera Health. Retrieved April 16, 2021.
{{cite web}}
: CS1 maint: url-status (link) - ^ a b Nafiye Y, Sevtap K, Muammer D, Emre O, Senol K, Leyla M (April 2010). "The effect of serum and intrafollicular insulin resistance parameters and homocysteine levels of nonobese, nonhyperandrogenemic polycystic ovary syndrome patients on in vitro fertilization outcome". Fertility and Sterility. 93 (6): 1864–1869. doi:10.1016/j.fertnstert.2008.12.024. PMID 19171332.
- ^ Sam S (February 2015). "Adiposity and metabolic dysfunction in polycystic ovary syndrome". Hormone Molecular Biology and Clinical Investigation. 21 (2): 107–116. doi:10.1515/hmbci-2015-0008. PMID 25781555. S2CID 23592351.
- ^ Corbould A (October 2008). "Effects of androgens on insulin action in women: is androgen excess a component of female metabolic syndrome?". Diabetes/Metabolism Research and Reviews. 24 (7): 520–532. doi:10.1002/dmrr.872. PMID 18615851. S2CID 24630977.
- ^ Goyal M, Dawood AS (2017). "Debates Regarding Lean Patients with Polycystic Ovary Syndrome: A Narrative Review". Journal of Human Reproductive Sciences. 10 (3): 154–161. doi:10.4103/jhrs.JHRS_77_17. PMC 5672719. PMID 29142442.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ Sachdeva G, Gainder S, Suri V, Sachdeva N, Chopra S (2019). "Obese and Non-obese Polycystic Ovarian Syndrome: Comparison of Clinical, Metabolic, Hormonal Parameters, and their Differential Response to Clomiphene". Indian Journal of Endocrinology and Metabolism. 23 (2): 257–262. doi:10.4103/ijem.IJEM_637_18. PMC 6540884. PMID 31161114.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ Johnstone, Erica (2018-06-15). "Lean PCOS may be a genetically distinct from obese PCOS: lean women with polycystic ovary syndrome and their relatives have no increased risk of T2DM". dx.doi.org. doi:10.26226/morressier.5af300b3738ab10027aa99cd. S2CID 242055977. Retrieved 2021-12-13.
- ^ Dawood, AymanS; Goyal, Manu (2017). "Debates regarding lean patients with polycystic ovary syndrome: A narrative review". Journal of Human Reproductive Sciences. 10 (3): 154–161. doi:10.4103/jhrs.jhrs_77_17. ISSN 0974-1208. PMC 5672719. PMID 29142442.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ a b c Barry JA, Azizia MM, Hardiman PJ (1 September 2014). "Risk of endometrial, ovarian and breast cancer in women with polycystic ovary syndrome: a systematic review and meta-analysis". Human Reproduction Update. 20 (5): 748–758. doi:10.1093/humupd/dmu012. PMC 4326303. PMID 24688118.
- ^ New MI (May 1993). "Nonclassical congenital adrenal hyperplasia and the polycystic ovarian syndrome". Annals of the New York Academy of Sciences. 687 (1): 193–205. Bibcode:1993NYASA.687..193N. doi:10.1111/j.1749-6632.1993.tb43866.x. PMID 8323173. S2CID 30161989.
- ^ Hardiman P, Pillay OC, Atiomo W (May 2003). "Polycystic ovary syndrome and endometrial carcinoma". Lancet. 361 (9371): 1810–1812. doi:10.1016/S0140-6736(03)13409-5. PMID 12781553. S2CID 27453081.
- ^ Mather KJ, Kwan F, Corenblum B (January 2000). "Hyperinsulinemia in polycystic ovary syndrome correlates with increased cardiovascular risk independent of obesity". Fertility and Sterility. 73 (1): 150–156. doi:10.1016/S0015-0282(99)00468-9. PMID 10632431.
- ^ Moran LJ, Misso ML, Wild RA, Norman RJ (2010). "Impaired glucose tolerance, type 2 diabetes and metabolic syndrome in polycystic ovary syndrome: a systematic review and meta-analysis". Human Reproduction Update. 16 (4): 347–363. doi:10.1093/humupd/dmq001. PMID 20159883.
- ^ Falcone T, Hurd RW (2007). Clinical Reproductive Medicine and Surgery. Elsevier Health Sciences. p. 223. ISBN 978-0-323-03309-1.
- ^ "Polycystic ovary syndrome (PCOS) - Symptoms and causes". Mayo Clinic.
- ^ Barry JA, Kuczmierczyk AR, Hardiman PJ (September 2011). "Anxiety and depression in polycystic ovary syndrome: a systematic review and meta-analysis". Human Reproduction. 26 (9): 2442–2451. doi:10.1093/humrep/der197. PMID 21725075.
- ^ Ovalle F, Azziz R (June 2002). "Insulin resistance, polycystic ovary syndrome, and type 2 diabetes mellitus". Fertility and Sterility. 77 (6): 1095–1105. doi:10.1016/s0015-0282(02)03111-4. PMID 12057712.
- ^ de Groot PC, Dekkers OM, Romijn JA, Dieben SW, Helmerhorst FM (1 July 2011). "PCOS, coronary heart disease, stroke and the influence of obesity: a systematic review and meta-analysis". Human Reproduction Update. 17 (4): 495–500. doi:10.1093/humupd/dmr001. PMID 21335359.
- ^ Goldenberg N, Glueck C (February 2008). "Medical therapy in women with polycystic ovarian syndrome before and during pregnancy and lactation". Minerva Ginecologica. 60 (1): 63–75. PMID 18277353.
- ^ Boomsma CM, Fauser BC, Macklon NS (January 2008). "Pregnancy complications in women with polycystic ovary syndrome". Seminars in Reproductive Medicine. 26 (1): 72–84. doi:10.1055/s-2007-992927. PMID 18181085.
- ^ Baba T, Endo T, Honnma H, Kitajima Y, Hayashi T, Ikeda H, et al. (April 2007). "Association between polycystic ovary syndrome and female-to-male transsexuality". Human Reproduction. 22 (4): 1011–1016. CiteSeerX 10.1.1.519.7356. doi:10.1093/humrep/del474. PMID 17166864.
- ^ Becerra-Fernández A, Pérez-López G, Román MM, Martín-Lazaro JF, Lucio Pérez MJ, Asenjo Araque N, et al. (August 2014). "Prevalence of hyperandrogenism and polycystic ovary syndrome in female to male transsexuals" [Prevalence of hyperandrogenism and polycystic ovary syndrome in female to male transsexuals]. Endocrinologia y Nutricion (in Spanish). 61 (7): 351–358. doi:10.1016/j.endonu.2014.01.010. PMID 24680383. S2CID 162299777.
- ^ Balen AH, Schachter ME, Montgomery D, Reid RW, Jacobs HS (March 1993). "Polycystic ovaries are a common finding in untreated female to male transsexuals". Clinical Endocrinology. 38 (3): 325–329. doi:10.1111/j.1365-2265.1993.tb01013.x. PMID 8458105. S2CID 72741370.
- ^ a b Cesta CE, Månsson M, Palm C, Lichtenstein P, Iliadou AN, Landén M (November 2016). "Polycystic ovary syndrome and psychiatric disorders: Co-morbidity and heritability in a nationwide Swedish cohort". Psychoneuroendocrinology. 73: 196–203. doi:10.1016/j.psyneuen.2016.08.005. hdl:10616/45608. PMID 27513883. S2CID 207460386.
- ^ Kowalczyk R, Skrzypulec V, Lew-Starowicz Z, Nowosielski K, Grabski B, Merk W (June 2012). "Psychological gender of patients with polycystic ovary syndrome". Acta Obstetricia et Gynecologica Scandinavica. 91 (6): 710–714. doi:10.1111/j.1600-0412.2012.01408.x. PMID 22443151. S2CID 25055401.
- ^ Dumesic DA, Oberfield SE, Stener-Victorin E, Marshall JC, Laven JS, Legro RS (October 2015). "Scientific Statement on the Diagnostic Criteria, Epidemiology, Pathophysiology, and Molecular Genetics of Polycystic Ovary Syndrome". Endocrine Reviews (Review). 36 (5): 487–525. doi:10.1210/er.2015-1018. PMC 4591526. PMID 26426951.
- ^ "Transgender/PCOS". 2006-09-20. Archived from the original on 2014-10-25. Retrieved 2014-10-24.[full citation needed]
- ^ "Ovarian Cancer in Transgender Men". National LGBT Cancer Network. Archived from the original on 2015-05-10. Retrieved 2015-05-05.[full citation needed]
- ^ a b Page 836 (Section:Polycystic ovary syndrome) in: Fauser BC, Diedrich K, Bouchard P, Domínguez F, Matzuk M, Franks S, et al. (2011). "Contemporary genetic technologies and female reproduction". Human Reproduction Update. 17 (6): 829–847. doi:10.1093/humupd/dmr033. PMC 3191938. PMID 21896560.
- ^ a b c d Legro RS, Strauss JF (September 2002). "Molecular progress in infertility: polycystic ovary syndrome". Fertility and Sterility. 78 (3): 569–576. doi:10.1016/S0015-0282(02)03275-2. PMID 12215335.
- ^ Filippou P, Homburg R (July 2017). "Is foetal hyperexposure to androgens a cause of PCOS?". Human Reproduction Update. 23 (4): 421–432. doi:10.1093/humupd/dmx013. PMID 28531286.
- ^ a b Crosignani PG, Nicolosi AE (2001). "Polycystic ovarian disease: heritability and heterogeneity". Human Reproduction Update. 7 (1): 3–7. doi:10.1093/humupd/7.1.3. PMID 11212071.
- ^ a b c Strauss JF (November 2003). "Some new thoughts on the pathophysiology and genetics of polycystic ovary syndrome". Annals of the New York Academy of Sciences. 997 (1): 42–48. Bibcode:2003NYASA.997...42S. doi:10.1196/annals.1290.005. PMID 14644808. S2CID 23559461.
- ^ a b Hamosh A (12 September 2011). "POLYCYSTIC OVARY SYNDROME 1; PCOS1". OMIM. McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine. Archived from the original on 16 July 2015. Retrieved 15 November 2011.
- ^ Amato P, Simpson JL (October 2004). "The genetics of polycystic ovary syndrome". Best Practice & Research. Clinical Obstetrics & Gynaecology. 18 (5): 707–718. doi:10.1016/j.bpobgyn.2004.05.002. PMID 15380142.
- ^ Draper N, Walker EA, Bujalska IJ, Tomlinson JW, Chalder SM, Arlt W, et al. (August 2003). "Mutations in the genes encoding 11beta-hydroxysteroid dehydrogenase type 1 and hexose-6-phosphate dehydrogenase interact to cause cortisone reductase deficiency". Nature Genetics. 34 (4): 434–439. doi:10.1038/ng1214. PMID 12858176. S2CID 22772927.
- ^ Ehrmann DA (March 2005). "Polycystic ovary syndrome". The New England Journal of Medicine. 352 (12): 1223–1236. doi:10.1056/NEJMra041536. PMID 15788499. S2CID 79796961.
- ^ Faghfoori Z, Fazelian S, Shadnoush M, Goodarzi R (November 2017). "Nutritional management in women with polycystic ovary syndrome: A review study". Diabetes & Metabolic Syndrome (Review). 11 (Suppl 1): S429–S432. doi:10.1016/j.dsx.2017.03.030. PMID 28416368.
- ^ Hoeger KM (May 2014). "Developmental origins and future fate in PCOS". Seminars in Reproductive Medicine. 32 (3): 157–158. doi:10.1055/s-0034-1371086. PMID 24715509.
- ^ Abbott DH, Barnett DK, Bruns CM, Dumesic DA (2005). "Androgen excess fetal programming of female reproduction: a developmental aetiology for polycystic ovary syndrome?". Human Reproduction Update. 11 (4): 357–374. doi:10.1093/humupd/dmi013. PMID 15941725.
- ^ Rasgon N (June 2004). "The relationship between polycystic ovary syndrome and antiepileptic drugs: a review of the evidence". Journal of Clinical Psychopharmacology. 24 (3): 322–334. doi:10.1097/01.jcp.0000125745.60149.c6. PMID 15118487. S2CID 24603227.
- ^ Rutkowska A, Rachoń D (April 2014). "Bisphenol A (BPA) and its potential role in the pathogenesis of the polycystic ovary syndrome (PCOS)". Gynecological Endocrinology. 30 (4): 260–265. doi:10.3109/09513590.2013.871517. PMID 24397396. S2CID 5828672.
- ^ a b Palioura E, Diamanti-Kandarakis E (December 2013). "Industrial endocrine disruptors and polycystic ovary syndrome". Journal of Endocrinological Investigation. 36 (11): 1105–1111. doi:10.1007/bf03346762. PMID 24445124. S2CID 27141519.
- ^ Hu X, Wang J, Dong W, Fang Q, Hu L, Liu C (November 2011). "A meta-analysis of polycystic ovary syndrome in women taking valproate for epilepsy". Epilepsy Research. 97 (1–2): 73–82. doi:10.1016/j.eplepsyres.2011.07.006. PMID 21820873. S2CID 26422134.
- ^ Merkin SS, Phy JL, Sites CK, Yang D (July 2016). "Environmental determinants of polycystic ovary syndrome". Fertility and Sterility. 106 (1): 16–24. doi:10.1016/j.fertnstert.2016.05.011. PMID 27240194.
- ^ "What is Luteinizing Hormone?". Hormone.org. Endocrine Society. Retrieved 7 June 2019.
- ^ Lewandowski KC, Cajdler-Łuba A, Salata I, Bieńkiewicz M, Lewiński A (2011). "The utility of the gonadotrophin releasing hormone (GnRH) test in the diagnosis of polycystic ovary syndrome (PCOS)". Endokrynologia Polska. 62 (2): 120–128. PMID 21528473. ProQuest 2464206947.
- ^ Diamanti-Kandarakis E, Dunaif A (December 2012). "Insulin resistance and the polycystic ovary syndrome revisited: an update on mechanisms and implications". Endocrine Reviews. 33 (6): 981–1030. doi:10.1210/er.2011-1034. PMC 5393155. PMID 23065822.
- ^ Sathyapalan T, Atkin SL (2010). "Mediators of inflammation in polycystic ovary syndrome in relation to adiposity". Mediators of Inflammation. 2010: 758656. doi:10.1155/2010/758656. PMC 2852606. PMID 20396393.
- ^ Fukuoka M, Yasuda K, Fujiwara H, Kanzaki H, Mori T (November 1992). "Interactions between interferon gamma, tumour necrosis factor alpha, and interleukin-1 in modulating progesterone and oestradiol production by human luteinized granulosa cells in culture". Human Reproduction. 7 (10): 1361–1364. doi:10.1093/oxfordjournals.humrep.a137574. PMID 1291559.
- ^ González F, Rote NS, Minium J, Kirwan JP (January 2006). "Reactive oxygen species-induced oxidative stress in the development of insulin resistance and hyperandrogenism in polycystic ovary syndrome". The Journal of Clinical Endocrinology and Metabolism. 91 (1): 336–340. doi:10.1210/jc.2005-1696. PMID 16249279.
- ^ Murri M, Luque-Ramírez M, Insenser M, Ojeda-Ojeda M, Escobar-Morreale HF (2013). "Circulating markers of oxidative stress and polycystic ovary syndrome (PCOS): a systematic review and meta-analysis". Human Reproduction Update. 19 (3): 268–288. doi:10.1093/humupd/dms059. PMID 23303572.
- ^ a b c d Imaging in Polycystic Ovary Disease at eMedicine
- ^ a b c d e f Polycystic Ovarian Syndrome~workup at eMedicine
- ^ Pedersen SD, Brar S, Faris P, Corenblum B (June 2007). "Polycystic ovary syndrome: validated questionnaire for use in diagnosis". Canadian Family Physician. 53 (6): 1042–7, 1041. PMC 1949220. PMID 17872783.
- ^ a b Dewailly D, Lujan ME, Carmina E, Cedars MI, Laven J, Norman RJ, Escobar-Morreale HF (2013). "Definition and significance of polycystic ovarian morphology: a task force report from the Androgen Excess and Polycystic Ovary Syndrome Society". Human Reproduction Update. 20 (3): 334–352. doi:10.1093/humupd/dmt061. PMID 24345633.
- ^ O'Brien WT (1 January 2011). Top 3 Differentials in Radiology. Thieme. p. 369. ISBN 978-1-60406-228-1. Archived from the original on 19 April 2016. Retrieved 30 August 2014.
Ultrasound findings in PCOS include enlarged ovaries with peripheral follicles in a "string of pearls" configuration.
- ^ Somani N, Harrison S, Bergfeld WF (2008). "The clinical evaluation of hirsutism". Dermatologic Therapy. 21 (5): 376–391. doi:10.1111/j.1529-8019.2008.00219.x. PMID 18844715. S2CID 34029116.
- ^ Sharquie KE, Al-Bayatti AA, Al-Ajeel AI, Al-Bahar AJ, Al-Nuaimy AA (July 2007). "Free testosterone, luteinizing hormone/follicle stimulating hormone ratio and pelvic sonography in relation to skin manifestations in patients with polycystic ovary syndrome". Saudi Medical Journal. 28 (7): 1039–1043. OCLC 151296412. PMID 17603706. INIST 18933286.
- ^ a b Banaszewska B, Spaczyński RZ, Pelesz M, Pawelczyk L (2003). "Incidence of elevated LH/FSH ratio in polycystic ovary syndrome women with normo- and hyperinsulinemia". Roczniki Akademii Medycznej W Bialymstoku. 48: 131–134. CiteSeerX 10.1.1.410.676. PMID 14737959.
- ^ Macpherson G (2002). Black's Medical Dictionary (40 ed.). Lanham, MD: Scarecrow Press. p. 496. ISBN 0810849844.
- ^ Dumont A, Robin G, Catteau-Jonard S, Dewailly D (December 2015). "Role of Anti-Müllerian Hormone in pathophysiology, diagnosis and treatment of Polycystic Ovary Syndrome: a review". Reproductive Biology and Endocrinology (Review). 13: 137. doi:10.1186/s12958-015-0134-9. PMC 4687350. PMID 26691645.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ Dewailly D, Andersen CY, Balen A, Broekmans F, Dilaver N, Fanchin R, et al. (2014). "The physiology and clinical utility of anti-Mullerian hormone in women". Human Reproduction Update (Review). 20 (3): 370–385. doi:10.1093/humupd/dmt062. PMID 24430863.
- ^ Broer SL, Broekmans FJ, Laven JS, Fauser BC (2014). "Anti-Müllerian hormone: ovarian reserve testing and its potential clinical implications". Human Reproduction Update. 20 (5): 688–701. doi:10.1093/humupd/dmu020. PMID 24821925.
- ^ a b Legro RS, Arslanian SA, Ehrmann DA, Hoeger KM, Murad MH, Pasquali R, Welt CK (December 2013). "Diagnosis and treatment of polycystic ovary syndrome: an Endocrine Society clinical practice guideline". The Journal of Clinical Endocrinology and Metabolism. 98 (12): 4565–4592. doi:10.1210/jc.2013-2350. PMC 5399492. PMID 24151290.
- ^ Veltman-Verhulst SM, Boivin J, Eijkemans MJ, Fauser BJ (2012). "Emotional distress is a common risk in women with polycystic ovary syndrome: a systematic review and meta-analysis of 28 studies". Human Reproduction Update. 18 (6): 638–651. doi:10.1093/humupd/dms029. PMID 22824735.
- ^ Garvey WT, Mechanick JI, Brett EM, Garber AJ, Hurley DL, Jastreboff AM, et al. (Reviewers of the AACE/ACE Obesity Clinical Practice Guidelines) (July 2016). "American association of clinical endocrinologists and American college of endocrinology comprehensive clinical practice guidelines for medical care of patients with obesity". Endocrine Practice. 22 (Suppl 3): 1–203. doi:10.4158/EP161365.GL. PMID 27219496.
- ^ a b Moran LJ, Ko H, Misso M, Marsh K, Noakes M, Talbot M, et al. (2013). "Dietary composition in the treatment of polycystic ovary syndrome: a systematic review to inform evidence-based guidelines". Human Reproduction Update. 19 (5): 432. doi:10.1093/humupd/dmt015. PMID 23727939.
- ^ a b c d e f g h i j Polycystic Ovarian Syndrome~treatment at eMedicine
- ^ Krul-Poel YH, Snackey C, Louwers Y, Lips P, Lambalk CB, Laven JS, Simsek S (December 2013). "The role of vitamin D in metabolic disturbances in polycystic ovary syndrome: a systematic review". European Journal of Endocrinology (Review). 169 (6): 853–865. doi:10.1530/EJE-13-0617. PMID 24044903.
- ^ He C, Lin Z, Robb SW, Ezeamama AE (June 2015). "Serum Vitamin D Levels and Polycystic Ovary syndrome: A Systematic Review and Meta-Analysis". Nutrients (Meta-analysis). 7 (6): 4555–4577. doi:10.3390/nu7064555. PMC 4488802. PMID 26061015.
- ^ Huang G, Coviello A (December 2012). "Clinical update on screening, diagnosis and management of metabolic disorders and cardiovascular risk factors associated with polycystic ovary syndrome". Current Opinion in Endocrinology, Diabetes and Obesity. 19 (6): 512–519. doi:10.1097/med.0b013e32835a000e. PMID 23108199. S2CID 205792902.
- ^ Lord JM, Flight IH, Norman RJ (October 2003). "Metformin in polycystic ovary syndrome: systematic review and meta-analysis". BMJ. 327 (7421): 951–953. doi:10.1136/bmj.327.7421.951. PMC 259161. PMID 14576245.
- ^ Li XJ, Yu YX, Liu CQ, Zhang W, Zhang HJ, Yan B, et al. (March 2011). "Metformin vs thiazolidinediones for treatment of clinical, hormonal and metabolic characteristics of polycystic ovary syndrome: a meta-analysis". Clinical Endocrinology. 74 (3): 332–339. doi:10.1111/j.1365-2265.2010.03917.x. PMID 21050251. S2CID 19620846.
- ^ Grover A, Yialamas MA (March 2011). "Metformin or thiazolidinedione therapy in PCOS?". Nature Reviews. Endocrinology. 7 (3): 128–129. doi:10.1038/nrendo.2011.16. PMID 21283123. S2CID 26162421. Gale A250471047.
- ^ National Institute for Health and Clinical Excellence. 11 Clinical guideline 11 : Fertility: assessment and treatment for people with fertility problems . London, 2004.
- ^ Balen A (December 2008). "Metformin therapy for the management of infertility in women with polycystic ovary syndrome" (PDF). Scientific Advisory Committee Opinion Paper 13. Royal College of Obstetricians and Gynaecologists. Archived from the original (PDF) on 2009-12-18. Retrieved 2009-12-13.
- ^ Leeman L, Acharya U (August 2009). "The use of metformin in the management of polycystic ovary syndrome and associated anovulatory infertility: the current evidence". Journal of Obstetrics and Gynaecology. 29 (6): 467–472. doi:10.1080/01443610902829414. PMID 19697191. S2CID 3339588.
- ^ NICE (December 2018). "Metformin Hydrochloride". National Institute for Care Excellence. NICE. Retrieved 2017-11-02.
- ^ "Polycystic Ovary Syndrome". Medanomaly.
- ^ Sharpe A, Morley LC, Tang T, Norman RJ, Balen AH (December 2019). "Metformin for ovulation induction (excluding gonadotrophins) in women with polycystic ovary syndrome". The Cochrane Database of Systematic Reviews. 12: CD013505. doi:10.1002/14651858.CD013505. PMC 6915832. PMID 31845767.
- ^ Feig DS, Moses RG (October 2011). "Metformin therapy during pregnancy: good for the goose and good for the gosling too?". Diabetes Care. 34 (10): 2329–2330. doi:10.2337/dc11-1153. PMC 3177745. PMID 21949224.
- ^ Cassina M, Donà M, Di Gianantonio E, Litta P, Clementi M (1 September 2014). "First-trimester exposure to metformin and risk of birth defects: a systematic review and meta-analysis". Human Reproduction Update. 20 (5): 656–669. doi:10.1093/humupd/dmu022. PMID 24861556.
- ^ Wang FF, Wu Y, Zhu YH, Ding T, Batterham RL, Qu F, Hardiman PJ (October 2018). "Pharmacologic therapy to induce weight loss in women who have obesity/overweight with polycystic ovary syndrome: a systematic review and network meta-analysis" (PDF). Obesity Reviews. 19 (10): 1424–1445. doi:10.1111/obr.12720. PMID 30066361. S2CID 51891552.
- ^ "Erase the Dread and Stigma of PCOD". Matria. Retrieved 2022-01-19.
- ^ Balen AH, Morley LC, Misso M, Franks S, Legro RS, Wijeyaratne CN, et al. (November 2016). "The management of anovulatory infertility in women with polycystic ovary syndrome: an analysis of the evidence to support the development of global WHO guidance". Human Reproduction Update. 22 (6): 687–708. doi:10.1093/humupd/dmw025. PMID 27511809.
- ^ Qiao J, Feng HL (2010). "Extra- and intra-ovarian factors in polycystic ovary syndrome: impact on oocyte maturation and embryo developmental competence". Human Reproduction Update. 17 (1): 17–33. doi:10.1093/humupd/dmq032. PMC 3001338. PMID 20639519.
- ^ "What are some causes of female infertility?". National Institute of Child Health and Human Development, National Institutes of Health.
- ^ Franik S, Eltrop SM, Kremer JA, Kiesel L, Farquhar C (May 2018). "Aromatase inhibitors (letrozole) for subfertile women with polycystic ovary syndrome". The Cochrane Database of Systematic Reviews. 2018 (5): CD010287. doi:10.1002/14651858.CD010287.pub3. PMC 6494577. PMID 29797697.
- ^ Tanbo T, Mellembakken J, Bjercke S, Ring E, Åbyholm T, Fedorcsak P (October 2018). "Ovulation induction in polycystic ovary syndrome". Acta Obstetricia et Gynecologica Scandinavica. 97 (10): 1162–1167. doi:10.1111/aogs.13395. PMID 29889977.
- ^ Hu S, Yu Q, Wang Y, Wang M, Xia W, Zhu C (May 2018). "Letrozole versus clomiphene citrate in polycystic ovary syndrome: a meta-analysis of randomized controlled trials". Archives of Gynecology and Obstetrics. 297 (5): 1081–1088. doi:10.1007/s00404-018-4688-6. PMID 29392438. S2CID 4800270.
- ^ Penzias, Alan; Bendikson, Kristin; Butts, Samantha; Coutifaris, Christos; Falcone, Tommaso; Fossum, Gregory; Gitlin, Susan; Gracia, Clarisa; Hansen, Karl; La Barbera, Andrew; Mersereau, Jennifer; Odem, Randall; Paulson, Richard; Pfeifer, Samantha; Pisarska, Margareta; Rebar, Robert; Reindollar, Richard; Rosen, Mitchell; Sandlow, Jay; Vernon, Michael (September 2017). "Role of metformin for ovulation induction in infertile patients with polycystic ovary syndrome (PCOS): a guideline". Fertility and Sterility. 108 (3): 426–441. doi:10.1016/j.fertnstert.2017.06.026. PMID 28865539.
- ^ Legro RS, Barnhart HX, Schlaff WD, Carr BR, Diamond MP, Carson SA, et al. (February 2007). "Clomiphene, metformin, or both for infertility in the polycystic ovary syndrome". The New England Journal of Medicine. 356 (6): 551–566. doi:10.1056/NEJMoa063971. PMID 17287476.[non-primary source needed]
- ^ Zhuang J, Wang X, Xu L, Wu T, Kang D (May 2013). "Antidepressants for polycystic ovary syndrome". The Cochrane Database of Systematic Reviews. 2013 (5): CD008575. doi:10.1002/14651858.CD008575.pub2. PMC 7390273. PMID 23728677.
- ^ Diamanti-Kandarakis E, Christakou C, Palioura E, Kandaraki E, Livadas S (June 2008). "Does polycystic ovary syndrome start in childhood?". Pediatric Endocrinology Reviews. 5 (4): 904–911. PMID 18552753.
- ^ Brutocao, Claire; Zaiem, Feras; Alsawas, Mouaz; Morrow, Allison S.; Murad, M. Hassan; Javed, Asma (November 2018). "Psychiatric disorders in women with polycystic ovary syndrome: a systematic review and meta-analysis". Endocrine. 62 (2): 318–325. doi:10.1007/s12020-018-1692-3. ISSN 1559-0100. PMID 30066285. S2CID 51889051.
- ^ Fraison E, Kostova E, Moran LJ, Bilal S, Ee CC, Venetis C, Costello MF (August 2020). "Metformin versus the combined oral contraceptive pill for hirsutism, acne, and menstrual pattern in polycystic ovary syndrome". The Cochrane Database of Systematic Reviews. 2020 (8): CD005552. doi:10.1002/14651858.CD005552.pub3. PMC 7437400. PMID 32794179.
- ^ "Polycystic ovary syndrome – Treatment". United Kingdom: National Health Service. 17 October 2011. Archived from the original on 6 November 2011. Retrieved 19 November 2011.
- ^ a b Polycystic Ovarian Syndrome~medication at eMedicine
- ^ "What are the health risks of PCOS?". Verity – PCOS Charity. Verity. 2011. Archived from the original on 25 December 2012. Retrieved 21 November 2011.
- ^ Pundir J, Psaroudakis D, Savnur P, Bhide P, Sabatini L, Teede H, et al. (February 2018). "Inositol treatment of anovulation in women with polycystic ovary syndrome: a meta-analysis of randomised trials" (PDF). BJOG. 125 (3): 299–308. doi:10.1111/1471-0528.14754. PMID 28544572. S2CID 21090113.
- ^ Amoah-Arko A, Evans M, Rees A (20 October 2017). "Effects of myoinositol and D-chiro inositol on hyperandrogenism and ovulation in women with polycystic ovary syndrome: a systematic review". Endocrine Abstracts. doi:10.1530/endoabs.50.P363.
- ^ Unfer V, Carlomagno G, Dante G, Facchinetti F (July 2012). "Effects of myo-inositol in women with PCOS: a systematic review of randomized controlled trials". Gynecological Endocrinology. 28 (7): 509–515. doi:10.3109/09513590.2011.650660. PMID 22296306. S2CID 24582338.
- ^ Zeng L, Yang K (January 2018). "Effectiveness of myoinositol for polycystic ovary syndrome: a systematic review and meta-analysis". Endocrine. 59 (1): 30–38. doi:10.1007/s12020-017-1442-y. PMID 29052180. S2CID 4376339.
- ^ Laganà AS, Vitagliano A, Noventa M, Ambrosini G, D'Anna R (October 2018). "Myo-inositol supplementation reduces the amount of gonadotropins and length of ovarian stimulation in women undergoing IVF: a systematic review and meta-analysis of randomized controlled trials". Archives of Gynecology and Obstetrics. 298 (4): 675–684. doi:10.1007/s00404-018-4861-y. PMID 30078122. S2CID 51921158.
- ^ Galazis N, Galazi M, Atiomo W (April 2011). "D-Chiro-inositol and its significance in polycystic ovary syndrome: a systematic review". Gynecological Endocrinology. 27 (4): 256–262. doi:10.3109/09513590.2010.538099. PMID 21142777. S2CID 1989262.
- ^ Lim CE, Ng RW, Cheng NC, Zhang GS, Chen H (July 2019). "Acupuncture for polycystic ovarian syndrome". The Cochrane Database of Systematic Reviews. 7: CD007689. doi:10.1002/14651858.CD007689.pub4. PMC 6603768. PMID 31264709.
- ^ Wu XK, Stener-Victorin E, Kuang HY, Ma HL, Gao JS, Xie LZ, et al. (June 2017). "Effect of Acupuncture and Clomiphene in Chinese Women With Polycystic Ovary Syndrome: A Randomized Clinical Trial". JAMA. 317 (24): 2502–2514. doi:10.1001/jama.2017.7217. PMC 5815063. PMID 28655015.
- ^ a b National Institutes of Health (NIH) (2014-07-14). "Treatments for Infertility Resulting from PCOS". Archived from the original on 2 April 2015. Retrieved 13 March 2015.
- ^ a b c Kovacs GT, Norman R (2007-02-22). Polycystic Ovary Syndrome. Cambridge University Press. p. 4. ISBN 9781139462037. Archived from the original on 16 June 2013. Retrieved 29 March 2013.
- ^ Vos T, Flaxman AD, Naghavi M, Lozano R, Michaud C, Ezzati M, et al. (December 2012). "Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990-2010: a systematic analysis for the Global Burden of Disease Study 2010". Lancet. 380 (9859): 2163–2196. doi:10.1016/S0140-6736(12)61729-2. PMC 6350784. PMID 23245607.
- ^ McLuskie I, Newth A (January 2017). "New diagnosis of polycystic ovary syndrome". BMJ. 356: i6456. doi:10.1136/bmj.i6456. hdl:10044/1/44217. PMID 28082338. S2CID 13042313.
- ^ Pruthi B (26 September 2019). "One in five Indian women suffers from PCOS". The Hindu. Retrieved April 16, 2021.
{{cite news}}
: CS1 maint: url-status (link) - ^ Ladson, Gwinnett; Dodson, William C.; Sweet, Stephanie D.; Archibong, Anthony E.; Kunselman, Allen R.; Demers, Laurence M.; Williams, Nancy I.; Coney, Ponjola; Legro, Richard S. (July 2011). "Racial influence on the polycystic ovary syndrome phenotype: a black and white case-control study". Fertility and Sterility. 96 (1): 224–229.e2. doi:10.1016/j.fertnstert.2011.05.002. ISSN 0015-0282. PMC 3132396. PMID 21723443.
- ^ Hillman, J.K.; Johnson, L.N.C.; Limaye, M.; Feldman, R.A.; Sammel, M.; Dokras, A. (September 2013). "Black women with polycystic ovary syndrome (PCOS) have increased risk for metabolic syndrome (MET SYN) and cardiovascular disease (CVD) compared to white women with PCOS". Fertility and Sterility. 100 (3): S100–S101. doi:10.1016/j.fertnstert.2013.07.1707. ISSN 0015-0282.
- ^ Polson DW, Adams J, Wadsworth J, Franks S (April 1988). "Polycystic ovaries--a common finding in normal women". Lancet. 1 (8590): 870–872. doi:10.1016/s0140-6736(88)91612-1. PMID 2895373. S2CID 41297081.
- ^ a b Clayton RN, Ogden V, Hodgkinson J, Worswick L, Rodin DA, Dyer S, Meade TW (August 1992). "How common are polycystic ovaries in normal women and what is their significance for the fertility of the population?". Clinical Endocrinology. 37 (2): 127–134. doi:10.1111/j.1365-2265.1992.tb02296.x. PMID 1395063. S2CID 12384062.
- ^ Farquhar CM, Birdsall M, Manning P, Mitchell JM, France JT (February 1994). "The prevalence of polycystic ovaries on ultrasound scanning in a population of randomly selected women". The Australian & New Zealand Journal of Obstetrics & Gynaecology. 34 (1): 67–72. doi:10.1111/j.1479-828X.1994.tb01041.x. PMID 8053879. S2CID 312422.
- ^ van Santbrink EJ, Hop WC, Fauser BC (March 1997). "Classification of normogonadotropic infertility: polycystic ovaries diagnosed by ultrasound versus endocrine characteristics of polycystic ovary syndrome". Fertility and Sterility. 67 (3): 452–458. doi:10.1016/S0015-0282(97)80068-4. PMID 9091329.
- ^ Hardeman J, Weiss BD (March 2014). "Intrauterine devices: an update". American Family Physician. 89 (6): 445–450. PMID 24695563.
- ^ Azziz R, Marin C, Hoq L, Badamgarav E, Song P (August 2005). "Health care-related economic burden of the polycystic ovary syndrome during the reproductive life span". The Journal of Clinical Endocrinology and Metabolism. 90 (8): 4650–4658. doi:10.1210/jc.2005-0628. PMID 15944216.
- ^ "RCDC Estimates of Funding for Various Research, Condition, and Disease Categories (RCDC)". NIH. NIH. Retrieved 3 December 2018.
- ^ a b Chaudhari, Aditi P.; Mazumdar, Kaustubh; Mehta, Pooja Deepak (2018). "Anxiety, Depression, and Quality of Life in Women with Polycystic Ovarian Syndrome". Indian Journal of Psychological Medicine. 40 (3): 239–246. doi:10.4103/IJPSYM.IJPSYM_561_17. ISSN 0253-7176. PMC 5968645. PMID 29875531.
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: CS1 maint: unflagged free DOI (link) - ^ "Sarah Hall investigates polycystic ovary syndrome". The Guardian. 2002-02-28. Retrieved 2022-01-21.
- ^ Chowdhury, Jennifer. "What Every Woman Should Know About PCOS". www.refinery29.com. Retrieved 2022-01-21.
- ^ "Chrisette Michele Opens Up About Living With PCOS & No Longer Being Vegan - BlackDoctor.org - Where Wellness & Culture Connect". BlackDoctor.org. 2015-12-10. Retrieved 2022-01-22.
- ^ Natale, Nicol (2021-11-17). "Keke Palmer Says PCOS Causes Facial Hair and Adult Acne". Prevention. Retrieved 2022-01-21.
- ^ "'Star Wars: The Force Awakens' Actress Opens Up About Painful Disorder". ABC News. Retrieved 2022-01-21.
Further reading
- Bremer AA (October 2010). "Polycystic ovary syndrome in the pediatric population". Metabolic Syndrome and Related Disorders. 8 (5): 375–394. doi:10.1089/met.2010.0039. PMC 3125559. PMID 20939704.
- "Polycystic Ovary Syndrome (PCOS)". Eunice Kennedy Shriver National Institute of Child Health and Human Development.