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    Oxidative, nitrosative and glycosative stress levels in Crimean-Congo hemorrhagic fever disease
    (Bayrakol Medical Publisher, 2020) Ersan, Serpil; Bakir, Sevtap; Engin, Aynur; Bakir, Mehmet
    Aim: This study aimed to investigate Oxidative/Nitrosative/Glycosative stress (OS/NS/GS) biomarkers levels in CCHF disease, their levels in the course of the disease, and to benefit from the results obtained in the pathogenesis and treatment of the disease. Material and Methods: In the study, serum OS, NS, and GS biomarkers levels of the participants in the CCHF (n = 60) and control (n = 35) groups were compared. In addition, the participants with CCHF were classified as mild, moderate, and severe infection subgroups according to the Severity Grading Score (SGS). A commercial enzyme-linked immunosorbent test kit was used to measure the levels of 8-OHdG, 3-NT, 8-NG, NO, CML, 8-iso-PGF2a in serum samples obtained from the participants in the CCHF and control groups. MDA levels were measured in serum samples by a spectrophotometric method. Total Antioxidant Status and Total Oxidant Status levels were determined using commercial kits. Results: On the whole, the mean OS/NS/GS biomarkers levels in the participants in the CCHF group were significantly higher than were those in the control group (p <0.005). Accordingly, it was found that in the participants with CCHF, as the severity of the disease increased so did the biomarker levels. Discussion: Consequently, in addition to routine laboratory tests, the presence of unbalanced OS/NS/GS in CCHF should be taken into account in the followup of patients. Considering that the main factor in CCHF treatment is supportive therapy, adding antioxidant agents to the treatment can contribute to the improvement of the prognosis.
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    The impact of Dicer, Drosha, and Exportin-5 levels in polycystic ovary syndrome (PCOS) diagnosis and phenotyping
    (Via Medica, 2022) Duman, Gulhan; Sariakcali, Baris; Ersan, Serpil; Bakir, Sevtap
    Introduction: Polycystic ovary syndrome (PCOS) is a very common heterogeneous endocrine and gynaecological disease in reproductive women. Early identification and treatment of patients are necessary to prevent future cardiometabolic and reproductive complications. In our study, we aimed to investigate whether Drosha, Exportin-5 (XPO5), and Dicer, which are involved in miRNA formation, are useful markers in the diagnosis of the disease. Material and methods: Patients who presented to our clinic with complaints such as menstrual irregularity, hirsutism, and acne were diagnosed with polycystic ovary after excluding other possible diagnoses, and if they meet two-thirds of the Rotterdam diagnostic criteria, they were included in the study. Thirty patients with polycystic ovaries and 35 healthy controls were included in this study. Results: The mean values of XPO5, Drosha, and Dicer markers were significantly higher in the PCOS group when compared with the control group. With an XPO5 value > 1.70, we found the PCOS with 94% probability, 86.7% sensitivity, and 91.4% specificity. Moreover, if the Drosha value was > 0.166, it was expected that the patient would be diagnosed as PCOS with a probability of 75%, with 66.7% sensitivity and 71.4% specifidty. A statistically significant cut-off value could not be obtained for Dicer. Conclusions: In our study, the levels of all three markers were found to be significantly higher in the PCOS group compared to the control group. It suggests that they can be used in the early diagnosis of PCOS patients without full-blown disease. However, this preliminary study should be supported by larger-scale studies.