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OBJECTIVE: What are the characteristics of adolescents diagnosed with polycystic ovary syndrome (PCOS) based on the 2003 Rotterdam criteria, but who do not meet the diagnosis according to the international evidence-based guideline?
CONCLUSIONS: Adolescents who had features of PCOS but did not meet the evidence-based guideline adolescent criteria exhibited unfavorable metabolic profiles compared to controls and shared considerable metabolic and hormonal features with adolescents who did meet the adolescent criteria.
BACKGROUND: The international evidence-based PCOS guideline recommended that ultrasound should not be used for the diagnosis of PCOS in girls with a gynecological age of <8 years. Thus far, few studies have evaluated the clinical characteristics of the girls diagnosed with PCOS based on the Rotterdam criteria but who do not meet the diagnosis according to the updated guideline.
METHODS: This is a retrospective study, and subjects attended for care from 2004 to 2022.
METHODS: Adolescent girls with PCOS diagnosed according to the 2003 Rotterdam criteria and healthy controls. All participants were between 2 and 8 years since menarche.
RESULTS: Of the 315 girls diagnosed with PCOS according to the Rotterdam criteria, those with irregular menstruation (IM)/hyperandrogenism (HA)/polycystic ovary (PCO), IM/HA, HA/PCO, and IM/PCO phenotypes accounted for 206 (65.4%), 30 (9.5%), 12 (3.8%), and 67 (21.3%) participants, respectively. According to the evidence-based guideline, 79 girls (25.1%) with the HA/PCO or IM/PCO phenotypes were not diagnosed with PCOS, and aligned to the international guideline; they were designated as the \'at-risk\' group. As expected, the girls meeting the evidence-based guideline adolescent criteria showed the worst metabolic profiles (degree of generalized or central obesity, frequency of insulin resistance, prediabetes or diabetes, and metabolic syndrome) and higher hirsutism scores than the at-risk group or controls. Approximately 90% of the at-risk group were not overweight or obese, which was similar to the controls. However, they showed worse metabolic profiles, with higher blood pressure, triglyceride, and insulin resistance parameters than controls; furthermore, these profiles were similar to those of the girls meeting the adolescent criteria. The at-risk group showed similarly elevated serum LH levels and LH/FSH ratio with the girls meeting adolescent criteria.
CONCLUSIONS: We could not evaluate hormonal or ultrasound parameters in controls.
CONCLUSIONS: Compared to the conventional Rotterdam criteria, the recent international evidence-based guideline-avoiding ultrasound in PCOS diagnosis in adolescents-still gives the opportunity to identify young girls at risk, aligned to the findings in this study. A practical approach to this adolescent population would involve establishing IM or HA (with ultrasound not indicated) and designating \'at-risk\' PCOS status with regular check-ups for newly developed or worsening PCOS-related symptoms or metabolic abnormalities, with subsequent reassessment including ultrasound or anti-Müllerian hormone, once 8 years post-menarche.
BACKGROUND: No funding was received in support of this study. The authors have no conflicts of interest to disclose.
BACKGROUND: N/A.

This systematic review and meta-analysis evaluated the efficacy of anti-obesity agents for hormonal, reproductive, metabolic, and psychological outcomes in polycystic ovary syndrome (PCOS) to inform the 2023 update of the International Evidence-based Guideline on PCOS. We searched Medline, EMBASE, PsycInfo, and CINAHL until July 2022 with a 10-year limit to focus on newer agents. Eleven trials (545 and 451 participants in intervention and control arms respectively, 12 comparisons) were included. On descriptive analyses, most agents improved anthropometric outcomes; liraglutide, semaglutide and orlistat appeared superior to placebo for anthropometric outcomes. Meta-analyses were possible for two comparisons (exenatide vs. metformin and orlistat + combined oral contraceptive pill [COCP] vs. COCP alone). On meta-analysis, no differences were identified between exenatide versus metformin for anthropometric, biochemical hyperandrogenism, and metabolic outcomes, other than lower fasting blood glucose more with metformin than exenatide (MD: 0.10 mmol/L, CI 0.02-0.17, I2 = 18%, 2 trials). Orlistat + COCP did not improve metabolic outcomes compared with COCP alone (fasting insulin MD: -8.65 pmol/L, -33.55 to 16.26, I2 = 67%, 2 trials). Published data examining the effects of anti-obesity agents in women with PCOS are very limited. The role of these agents in PCOS should be a high priority for future research.

BACKGROUND: Insulin resistance is common in women with polycystic ovary syndrome (PCOS). Inositol may have insulin sensitizing effects; however, its efficacy in the management of PCOS remains indeterminate.
OBJECTIVE: To inform the 2023 international evidence-based guidelines in PCOS, this systematic review and meta-analysis evaluated the efficacy of inositol, alone or in combination with other therapies, in the management of PCOS.
METHODS: Medline, PsycInfo, EMBASE, All EBM, and CINAHL from inception until August 2022.
METHODS: Thirty trials (n = 2230; 1093 intervention, 1137 control), with 19 pooled in meta-analyses were included.
METHODS: Data were extracted for hormonal, metabolic, lipids, psychological, anthropometric, reproductive outcomes, and adverse effects by 1 reviewer, independently verified by a second.
RESULTS: Thirteen comparisons were assessed, with 3 in meta-analyses. Evidence suggests benefits for myo-inositol or D-chiro-inositol (DCI) for some metabolic measures and potential benefits from DCI for ovulation, but inositol may have no effect on other outcomes. Metformin may improve waist-hip ratio and hirsutism compared to inositol, but there is likely no difference for reproductive outcomes, and the evidence is very uncertain for body mass indexI. Myo-inositol likely causes fewer gastrointestinal adverse events compared with metformin; however, these are typically mild and self-limited.
CONCLUSIONS: The evidence supporting the use of inositol in the management of PCOS is limited and inconclusive. Clinicians and their patients should consider the uncertainty of the evidence together with individual values and preferences when engaging in shared decision-making regarding the use of inositol for PCOS.

多囊卵巢综合征（PCOS）是生殖内分泌领域研究最活跃的疾病。伴随对PCOS的深入认知，诊治手段也不断丰富，从单纯性症状描述出发到目前循证证据的不断涌现，PCOS诊治的近百年历史是人类认知疾病的缩影。《2023年国际基于循证医学证据多囊卵巢综合征指南》的更新，促使单一妇科诊疗模式，向多学科协作、全生命周期、多方案、动态更新的诊疗模式转变。本文基于此次更新的指南与第一版以及既往重要的诊治指南对比研读，以期梳理疾病诊治的演变，为临床提供新规范，提升诊治效果，最终使患者获益。.

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This guideline reviews the etiology, diagnosis, evaluation, and treatment of hirsutism.
Women with hirsutism.
Three approaches to management include: 1) mechanical hair removal; 2) suppression of androgen production; and 3) androgen receptor blockade.
The main limitations of the management options include the adverse effects, costs, and duration of treatment.
Implementation of the recommendations in this guideline may improve the management of hirsutism in women with this condition. Adverse effects and a potential long duration of treatment are the main drawbacks to initiating treatment, as is the possibility of significant financial costs for certain treatments.
A comprehensive literature review was updated to April 2022, following the same methods as for the prior Society of Obstetricians and Gynaecologists of Canada (SOGC) Hirsutism guidelines. Results were restricted to systematic reviews, randomized controlled trials, controlled clinical trials, and observational studies. There were no date limits, but results were limited to English- or French-language materials.
The authors rated the quality of evidence and strength of recommendations using the modified Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, along with the option of designating a recommendation as a \"good practice point.\" See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and conditional [weak] recommendations).
Primary care providers, family medicine physicians, obstetricians and gynaecologists, reproductive endocrinologists and others who manage the care of patients with hirsutism.
Management of hirsutism involves a 3-pronged approach of mechanical hair removal, suppression of androgen production, and androgen receptor blockade.
RECOMMENDATIONS.

Polycystic ovary syndrome (PCOS) affects about 12% of women of reproductive age. In 2018, the first evidence-based guideline on assessment and management of PCOS was published, and an updated extended guideline was released in August 2023. These guidelines followed best practice and are endorsed by 39 organizations worldwide, making them the most robust source of evidence to guide clinical practice. In the 2023 guideline, diagnostic criteria have been further refined as polycystic ovary morphology can now be assessed with gynecological ultrasound or elevated anti-Müllerian hormone levels. A healthy lifestyle should be at the focus of care for all women with PCOS; however, with no specific diet or physical exercise recommended. The latest evidence on medical treatments and fertility management are reviewed, including special considerations regarding long-term follow-up of metabolic and psychiatric comorbidities and pregnancy in women with PCOS. Here we summarize the recommendations from a Nordic perspective.

OBJECTIVE: Is there any methylome alteration in women with PCOS who were diagnosed using the new international evidence-based guidelines?
CONCLUSIONS: A total of 264 differentially methylated probes (DMPs) and 53 differentially methylated regions (DMRs) were identified in patients with PCOS and healthy controls.
BACKGROUND: PCOS is a common endocrine disorder among women of reproductive age and polycystic ovarian morphology (PCOM) is one of the main features of the disease. Owing to the availability of more sensitive ultrasound machines, the traditional diagnosis of PCOM according to the Rotterdam criteria (≥12 antral follicles per ovary) is currently debated as there is a risk of overdiagnosis. The new international evidence-based guidelines set the threshold for PCOM as ≥20 antral follicles per ovary when using endovaginal ultrasound transducers with a frequency bandwidth that includes 8 MHz. However, current DNA methylation studies in PCOS are still based on the Rotterdam criteria. This study aimed to explore aberrant DNA methylation in patients diagnosed with PCOS according to the new evidence-based guidelines.
METHODS: This cross-sectional case-control study included 34 PCOS cases diagnosed using new international evidence-based guidelines and 36 controls.
METHODS: A total of 70 women, including 34 PCOS cases and 36 controls, were recruited. DNA extracted from whole blood samples of participants were profiled using array technology. Data quality control, preprocessing, annotation, and statistical analyses were performed. Least absolute shrinkage and selection operator (LASSO) regression were used to build a PCOS diagnosis model with DNA methylation sites.
RESULTS: We identified 264 DMPs between PCOS cases and controls, which were mainly located in intergenic regions or gene bodies of the genome, CpG open sea sites, and heterochromatin of functional elements. Pathway enrichment analysis showed that DMPs were significantly enriched in biological processes involved in triglyceride regulation. Three of these DMPs overlapped with the PCOS susceptibility genes thyroid adenoma-associated protein (THADA), aminopeptidase O (AOPEP), and tripartite motif family-like protein 2 (TRIML2). Fifty-three DMRs were identified and their annotated genes were largely enriched in allograft rejection, thyroid hormone production, and peripheral downstream signaling effects. Two DMRs were closely related to the PCOS susceptibility genes, potassium voltage-gated channel subfamily A member 4 (KCNA4) and farnesyl-diphosphate farnesyltransferase 1 (FDFT1). Finally, based on LASSO regression, we built a methylation marker model with high accuracy for PCOS diagnosis (AUC=0.952).
CONCLUSIONS: The study cohort was single-center and the sample size was relatively limited. Further analyses with a larger number of participants are required.
CONCLUSIONS: This is the first study to identify DNA methylation alterations in women with PCOS diagnosed using the new international evidence-based guideline, and it provided new molecular insight into the application of the new guidelines.
BACKGROUND: This study was supported by the National Key Research and Development Program of China (2021YFC2700400), Basic Science Center Program of NSFC (31988101), CAMS Innovation Fund for Medical Sciences (2021-I2M-5-001), National Natural Science Foundation of China (32370916, 82071606, 82101707, 82192874, and 31871509), Shandong Provincial Key Research and Development Program (2020ZLYS02), Taishan Scholars Program of Shandong Province (ts20190988), and Fundamental Research Funds of Shandong University. The authors declare no conflicts of interest.
BACKGROUND: N/A.