ASSESSMENT OF METABOLIC SYNDROME AND INSULIN RESISTANCE TRAJECTORIES IN ADOLESCENTS WITH POLYCYSTIC OVARY SYNDROME

Dr. Mei-Ling Chen; MD; Prof. Wei Zhang; PhD

Abstract

Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder in adolescent populations, often characterized by hyperandrogenism and ovulatory dysfunction. While its reproductive implications are well-documented, the longitudinal metabolic burden during the transition from adolescence to early adulthood remains a critical concern for maternal health. This study investigates the prevalence of metabolic syndrome (MetS) and insulin resistance (IR) within a diverse cohort of 840 symptomatic adolescents. Our findings demonstrate a significant correlation between high-circulating free testosterone levels and impaired glucose tolerance, independent of Body Mass Index (BMI). Comparison with age-matched controls revealed a fourfold increase in metabolic risk factors among the PCOS cohort. These metabolic alterations serve as early precursors to cardiovascular disease and gestational diabetes, necessitating specialized screening protocols for younger patients. By identifying specific metabolic phenotypes early, clinicians can implement targeted interventions to mitigate long-term systemic pathologies. This research underscores the necessity of high-sensitivity diagnostic criteria that account for the unique physiological nuances of adolescent development, ensuring that reproductive and metabolic health are managed synchronously.

Keywords: Polycystic Ovary Syndrome, Adolescent Health, Insulin Resistance, Metabolic Syndrome, Hyperandrogenism, Cardiovascular Risk, Reproduction, Pediatric Endocrinology

The findings of this study are of paramount importance to maternal and reproductive health practitioners, as the metabolic foundations of adult reproductive failure are often established during adolescence. PCOS-driven metabolic dysfunction is a known precursor to infertility, recurrent pregnancy loss, and adverse obstetric outcomes. By defining the metabolic profile of adolescent PCOS patients, this research bridges the gap between pediatric endocrinology and maternal-fetal medicine. Understanding these early trajectories allows for the development of preventative strategies that may reduce the incidence of metabolic syndrome in childbearing years. As the prevalence of pediatric obesity and endocrine disorders continues to rise globally, this study provides a data-driven framework for early risk stratification. Enhancing the metabolic health of adolescents today is a proactive measure to ensure the reproductive vitality and long-term systemic health of the next generation of mothers.

To evaluate the prevalence of metabolic syndrome and insulin resistance in adolescents diagnosed with PCOS and to identify clinical biomarkers that predict heightened cardiometabolic risk.

A prospective cross-sectional study was conducted involving 840 female adolescents (ages 13–19 years) diagnosed with PCOS according to the Rotterdam criteria, adjusted for adolescent physiology. The control group consisted of 400 age-matched healthy peers. Clinical assessments included BMI-Z scores, waist-to-hip ratios, and blood pressure monitoring. Biochemical analyses were performed to measure fasting plasma glucose (FPG), insulin, lipid profiles (HDL-C, LDL-C, Triglycerides), and total/free testosterone. Insulin resistance was quantified using the Homeostatic Model Assessment for Insulin Resistance (HOMA-IR), with a threshold of >3.16. Hyperandrogenemia was defined by a Free Androgen Index (FAI) >5%. Statistical analysis was performed using multivariable logistic regression to adjust for confounders, with significance levels set at p

3.16) was prevalent in 54.2% of the PCOS cohort. Even in lean PCOS subjects (BMI

6% was a stronger predictor of metabolic dysfunction than BMI alone (OR 3.42, 95% CI 2.15–5.41). Dyslipidemia was observed in 42% of the PCOS group, with low HDL-C (

150 mg/dL) being the most common abnormalities. Systolic blood pressure was significantly higher in the PCOS cohort (118 ± 12 mmHg) vs controls (106 ± 10 mmHg; p < 0.05). Notably, 12.4% of the PCOS group exhibited impaired glucose tolerance during a 2-hour oral glucose tolerance test.

Adolescents with PCOS demonstrate a markedly elevated risk for metabolic dysfunction that is often disproportionate to their BMI. The high prevalence of Insulin Resistance and Hyperinsulinemia suggests that PCOS in adolescence is a systemic metabolic state rather than a localized reproductive disorder. Our findings suggest that routine screening for HbA1c and lipid profiles should be mandatory at the time of PCOS diagnosis, regardless of weight status. Furthermore, the strong association between hyperandrogenism and metabolic risk highlights the potential for early hormonal modulation to improve long-term cardiovascular outcomes. Early intervention strategies during this critical developmental window are essential to prevent the progression of Type 2 Diabetes and future pregnancy-related complications, such as preeclampsia and gestational diabetes mellitus. Strategic multidisciplinary care involving endocrinology and nutrition is vital for this patient demographic.