Diabetes mellitus and insulin resistance in mothers, fathers, sisters, and brothers of women with polycystic ovary syndrome: a systematic review and meta-analysis

Meta-analysis provides quantitative evidence that mothers, fathers, sisters, and brothers of women with polycystic ovary syndrome seem to be more insulin resistant compared with healthy controls.

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Volume 110, Issue 3, Pages 523–533.e14

Authors:

Bulent Yilmaz, M.D., Priyathama Vellanki, M.D., Baris Ata, M.D., M.Sc., Bulent Okan Yildiz, M.D.

Abstract:

Objective(s)

To analyze whether first-degree relatives (FDR) of patients with polysystic ovary syndrome (PCOS) have an increased risk of insulin resistance and glucose intolerance.

Design

Systematic review and meta-analysis.

Setting

None.

Patient(s)

Parents and siblings of women with and without PCOS.

Intervention(s)

Search of PubMed database from 1960 to September 2017 with cross-checking of references of relevant articles in English.

Main Outcome Measure(s)

Prevalence of type 2 diabetes mellitus (T2DM) and impaired glucose tolerance, and levels of fasting insulin, 2-hour insulin levels, and homeostatic model assessment insulin resistance (HOMA IR).

Result(s)

Our search retrieved 4,796 articles of which 19 were included. The prevalence of T2DM was significantly increased in mothers and fathers of PCOS probands (rate ratio [RR] 2.43; 95% confidence interval [CI], 1.58–3.75, and RR 2.27; 95% CI, 1.25–4.12). Moreover, the fasting insulin (in mothers, fathers, and sisters) and HOMA IR (in mothers, fathers, and sisters) levels were statistically significantly higher in parents and siblings of PCOS patients. The sisters (RR 1.34; 95% CI, 0.59–3.03) and brothers (RR 1.51; 95% CI, 0.63–3.62) had a higher prevalence of T2DM than the control subjects, but the difference was not statistically significant.

Conclusion(s)

Our meta-analysis provides quantitative evidence demonstrating clustering of T2DM and insulin resistance in the parents and siblings of PCOS probands.

Systematic Review Registration Number

PROSPERO 2016 CRD42016048551.


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Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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