| Summary: | Objective: Polycystic ovary syndrome (PCOS) is a common hormonal disorder among women of reproductive age characterized by irregular menstruation and hirsutism and is associated with an increased risk for cardiovascular diseases. Increased inflammatory response and oxidative stress may also present in these patients. In this study, we aimed to compare the neutrophil-to-lymphocyte ratio (NLR), mean platelet volume (MPV), and dynamic thiol-disulphide homeostasis (dTDH) between the patients with PCOS and healthy individuals and to investigate the correlation between these parameters and cardiovascular risk factors in patients with PCOS. Materials and methods: A total of 60 participants were included in this study. The patient group consisted of 36 patients who were diagnosed with PCOS and the control group consisted of 24 healthy individuals without PCOS. Complete blood count and hormonal tests were performed using blood samples. The NLR, MPV, and dTDH were compared between the patient and control groups. Results: There was no statistically significant difference in the native thiol, total thiol, disulphide levels and disulfide/native, disulfide/total and native/total thiol ratios between the patient and control groups (p = 0.494, p = 0.446, p = 0.338, p = 0.717, p = 0.723, and p = 0.717, respectively). In addition, there was no statistically significant difference in NLR and MPV between the groups (p = 0.531 and p = 0.196). Conclusion: Our study results showed no significant difference in the NLR, MPV, dTDH levels, and inflammatory biomarkers including leukocyte count between the PCOS patients and healthy controls. Based on these findings, we conclude that the diagnosis of PCOS alone in overweight patients has no considerable effect on these biomarkers. Keywords: Polycystic ovary syndrome, Thiol/disulfide homeostasis, Neutrophil-to-lymphocyte ratio, Mean platelet volume
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