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    CTLA4+rs231775 gene polymorphism increases PCOS, regardless of the levels of interleukin-6 and tumor necrosis factor-? in the serum
    (Bayrakol Medical Publisher, 2023) Beyazit, Fatma; Cicekliyurt, Meliha Merve; Turkon, Hakan; Unsal, Mesut Abdulkerim; Pek, Eren
    Aim: Polycystic ovarian syndrome (PCOS) is a long-standing inflammation-related disease with increased levels of circulating pro-inflammatory markers. By affecting inflammatory cytokine production, cytotoxic T lymphocyte-associated antigen (CTLA-4) polymorphism can alter the immune system and trigger distinct disease states. The aim of the study was to investigate if CTLA4 polymorphism is associated with PCOS, and if so, (2) whether this situation influences serum interleukin-6 (IL-6) and TNF-alpha in PCOS.Material and Methods: CTLA4+rs231775 gene polymorphism with IL-6 and TNF-a levels were determined in 92 PCOS women and 88 healthy controls. Study groups were further subdivided according to body mass index (BMI) and the degree of insulin resistance (IR), and comparisons were made within each study group.Results: The prevalence of the A allele of single nucleotide polymorphism (SNP) rs231775 was more frequent in PCOS women compared with healthy controls [OR: 1.99, 95% CI:1.273-3.107, p =0.0023]. The heterozygous genotype was also shown to be strongly associated with PCOS development [OR: 3.041, 95%CI:1.604-5.766, p=0.0005]. Although TNF-a levels of PCOS patients were detected to be elevated, no difference was found in the study groups with respect to serum IL-6 levels. In addition, no association was observed between CTLA4+rs231775 polymorphism and serum pro-inflammatory cytokine levels.Discussion: The present study demonstrates for the first time that CTLA4+rs231775 gene polymorphism increases susceptibility to PCOS 2 times more in the case of A allele carriage and 3 times more in heterozygous individuals, independent from the long-standing low-grade inflammatory disease state encountered in patients with PCOS.
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    Evaluation of the hematologic system as a marker of subclinical inflammation in hyperemesis gravidarum: a case control study
    (Via Medica, 2017) Beyazit, Fatma; Ozturk, Filiz Halici; Pek, Eren; Unsal, Mesut Abdulkerim
    Objectives: Current evidence suggests that subclinical inflammation plays a significant role in the development of hyperemesis gravidarum (HEG). Simple hematological markers, such as mean platelet volume (MPV), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR), have been shown to reflect inflammatory burden and disease activity in several disorders. This study aimed to determine the diagnostic value of these hematological parameters for HEG. Material and methods: A total of 54 HEG patients and 58 age-and gestational-age-matched control subjects were studied. NLR, MPV, PLR, platelet distribution width (PDW), and red cell distribution width (RDW) values in all patients were calculated and recorded from complete blood cell counts. Results: For HEG patients, the median NLR was 3.2 (1.6-7.1), and the median PLR was 143.7 (78.1-334.6); for control subjects, the values were 2.1 (1.0-4.7) and 93.1 (47.3-194.7), respectively. Although both the NLR and PLR of HEG patients were found to be significantly higher than in the controls, no significant difference was found between the study groups in terms of MPV, RDW, or PDW. Correlation analysis revealed a significant correlation between NLR and CRP (r = 0.872, p < 0.001). Conclusions: Our results show that peripheral blood NLR and PLR values can reflect inflammatory burden in HEG patients and can be used as markers for HEG.
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    The immunohistochemical and histologic effects of contrast medium on uterus, fallopian tubes and ovaries, given during hysterosalpingography: rat study
    (Galenos Yayincilik, 2020) Pek, Eren; Goret, Ceren Canbey; Hacivelioglu, Servet; Adam, Gurhan; Unsal, Mesut Abdulkerim
    Objective: Previous studies have shown that damage occurs to internal genital tract during hysterosalpingography (HSG). The aim was to show that endometrial and tubal epithelium underwent free radical damage during HSG in an animal model. Material and Methods: Forty rats were evaluated in five different groups. Two groups received ionizing radiation (15-20 miliRad three times) only. Two further groups received ionizing radiation in combination with iohexol (1-2 mL). The remaining group served as control. Groups were evaluated after seven and forty-two days. Inflammation and cellular changes were evaluated histopathologically. Cellular activity of antioxidant enzymes was assessed immunohistochemically. Results: Inflammation, and cellular changes were detected at certain rates in all groups (p<0.001). Glutathione reductase, catalase, superoxide dismutase, glutathione S-transferase activities were found to be increased after the HSG (p<0.001). Conclusion: It is obvious that the cell suffers acute and chronic damage during HSG due to both radioactivity and chemicals. Although there is a lot of research done before, there is no definitive method yet to protect against the harmful effects of iodinated contrast agents and ionizing radiation. So, new methods need to be explored to protect cells and tissues from reactive oxygen radical damage caused by HSG.