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Actuality. Ovarian insufficiency can be diagnosed in more than 30% of reproductive age women with obesity. The role of leptin in the pathogenesis of ovarian insufficiency in obesity is not well understood and needs to be detalised. The aim of the study: to ivestigate the role of leptin in the pathogenesis of ovarian insufficiency in obesity. Materials and methods. 50 reproductive age females with BMI > 26.5 kg/m2 were studied. 10 healthy reproductive age females were used as control. Blood levels of leptin, gonadotropins, prolactin, sex steroid hormones were measured by immunoenzymatic assay and pelvic echoscopy were performed in all studied patients and co ntrols. Results. 72% of obese women had signs of ovarian insufficiency, such as ovarian enlargement and increased antral follicular count. The level of leptin did not correlate with the presence or absence of ovarian insufficiency in our patient group. The positive correlation between leptin level and BMI, luteinizing hormone (LG) and oestradiol and negative correlation between leptin level and follicular stimulating hormone (FSH) were revealed. Conclusion. The results of our study do not support the hyperleptinemia as the main cause of ovarian dysfunction in alimentary obesity. The most potential reason of ovarian dysfunction in these women could be ovarian or non-ovarian origin hyperoestrogenia leading to premature LG piques, and, thus, disturbing folliculogenesis in ovaria.

The role of leptin in the pathogenesis of ovarian insufficiency in obesity women