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Insulin resistance, androgens, and lipids are gradually improved in an age-dependent manner in lean women with polycystic ovary syndrome: insights from a large Caucasian cohort

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Abstract

Purpose

Polycystic ovary syndrome (PCOS), considered a lifelong condition, manifests mainly as a cluster of hyperandrogenic symptoms during the early reproductive years, with the affected woman gradually developing an adverse cardiometabolic profile over the years. However, some data point to the possibility of differences in the evolution of PCOS according to a woman’s weight. The aim of the present study was to evaluate the metabolic and hormonal profiles of women with PCOS over time.

Methods

A total of 763 lean women with PCOS (BMI 20–25 kg/m2) and 376 controls were included. The study group was further divided into three age groups representing women post-adolescence, of reproductive age, and of late reproductive age. All subjects were assessed clinically, biochemically, and hormonally.

Results

Waist circumference, lipids, androgens, and insulin resistance index (homeostasis model assessment of IR index (HOMA-IR)) were significantly higher in the PCOS group compared with controls. Age subgroup analysis showed a progressive decrease of HOMA-IR and waist circumference, and lipid levels were comparable between PCOS and controls in all age groups. Androgens remained significantly higher in PCOS, but they gradually decreased through time. A significant negative association of age with waist circumference, androgens, insulin, and HOMA-IR was revealed. Univariate and multivariate regression analysis disclosed a strong correlation of HOMA-IR with age (p = 0.014, β − 0.19, SE coefficient 0.008) as a single parameter or in combination with total cholesterol (TC) (p < 0.001, age: β − 0.023, SE 0.10; TC: β 0.084, SE 0.027).

Conclusion

Insulin resistance, androgens, and lipids are gradually improved in an age-dependent manner in lean PCOS women. We hypothesize that if these women do not gain weight with the passage of time, there is a high probability that their cardiometabolic risk will be attenuated.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Authors and Affiliations

  1. Endocrine Unit, Metropolitan Hospital, 6 Ermou Str, 10563, Athens, Greece

    S. Livadas

  2. Clinic of Endocrinology, Diabetes and Metabolic Diseases, Faculty of Medicine, University of Belgrade, Belgrade, Serbia

    D. Macut

  3. Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital of Zurich, Zurich, Switzerland

    C. Bothou

  4. Department of Endocrinology, Diabetology and Isotope Therapy, University of Medicine, Wrocław, Poland

    J. Kuliczkowska-Płaksej & A. Milewicz

  5. Department of Endocrinology and Diabetes, Hellenic Red Cross Hospital, Athens, Greece

    A. Vryonidou

  6. Department of Endocrinology, UMC Bežanijska kosa, Faculty of Medicine, University of Belgrade, Belgrade, Serbia

    J. Bjekic-Macut

  7. 1st Medical Propedeutic Department of Internal Medicine, AHEPA University Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece

    Z. Mouslech

  8. Gynecological Endocrinology Infirmary of the Second Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki, Greece

    D. Panidis

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Correspondence to S. Livadas.

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The authors declare that they have no conflict of interest.

Ethical approval

The institutional review board of all participating hospitals approved the study. The institutional review boards that approved this study were the Ethical Committee for Human Studies of the Metropolitan Hospital, of Hellenic Red Cross Hospital and of Faculty of Medicine, University of Belgrade, of Faculty of Medicine, University of Wrocław and of Faculty of Medicine, University of Thessaloniki.

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Livadas, S., Macut, D., Bothou, C. et al. Insulin resistance, androgens, and lipids are gradually improved in an age-dependent manner in lean women with polycystic ovary syndrome: insights from a large Caucasian cohort. Hormones 19, 531–539 (2020). https://doi.org/10.1007/s42000-020-00211-z

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