Proinflammatory cytokines and polycystic ovary syndrome

Abstract

Polycystic ovary syndrome (PCOS) is a common disease, with a detection rate from 6 to 20% depending on the used criteria. Today patients with obesity have been often diagnosed with PCOS, but also it diagnoses in women with normal body weight. So the population studies shows that between 30% and 70% of women with PCOS has a normal body weight. And if today find many of the mechanisms of its formation in patients who are overweight, the pathogenesis of PCOS in women with normal body weight at the present stage is completely unclear. Research took part in 120 women with normal weight, who was diagnosed polycystic syndrome ovary on the basis of clinical practice guidelines of Endocrine Society USA (2013), of them 80 women with PCOS run on the background of pelvic inflammatory diseases (PID). Participants were comparable in age and body mass index. Status of the system mediators inflammation studied on the determining level of interleukin-18 and myeloperoxidase in blood serum in first phase menstrual cycle. An analysis of the average pro-inflammatory cytokines in the serum of women with normal body weight and PCOS, which occurs on the background of PID found elevated levels of interleukin-18 – 262.87 ± 40.57 pg/ml and myeloperoxidase – 63.29 ± 4.13 ng/ml. A positive correlative relationship between the level of interleukin-18, and the index of free testosterone in women with PCOS on the background of PID (r = 0.7) (p < 0.05). It can be assumed that the inflammatory diseases of the genitalia play an important role in the formation of the PCOS manifestations in women with normal body weight due to increased production of proinflammatory cytokine interleukin-18 and myeloperoxidase, which may be a prerequisite for circulatory disorders in ovarian, folliculogenesis processes and hormone production.