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Öğe Biomarkers of immune hyperactivation and inflammation are elevated in pregnancies complicated by fetal Trisomy-21(Taylor & Francis Ltd, 2025) Turkcuoglu, Ilgin; Sinaci, Selcan; Melekoglu, Rauf; Unuvar, Songul; Celik, Nesibe Zeyveli; Yasar, Seyma; Polat, Busra BerfinObjective To compare interferon-linked/inflammatory biomarkers (neopterin, indoleamine-2,3-dioxygenase [IDO], and YKL-40) in maternal serum and amniotic fluid between Trisomy-21 and chromosomally normal pregnancies. Methods This prospective case-control study included pregnancies diagnosed with Trisomy-21 and chromosomally normal pregnancies as controls. Neopterin, IDO, and YKL-40 levels in maternal serum and amniotic fluid samples were measured using ELISA. Results Neopterin and YKL-40 levels were significantly higher in amniotic fluid (p < 0.05) and maternal serum (p < 0.05), respectively, in the Trisomy-21 group. Maternal serum IDO showed a trend toward increase in Trisomy-21 pregnancies, while amniotic fluid levels did not differ between groups. All measurements were above assay detection limits. Conclusion Trisomy-21 pregnancies showed elevated AF neopterin and elevated MS YKL-40, while IDO was not significantly different. This pattern is compatible with differences in interferon-linked inflammatory/vascular pathways in Trisomy-21 pregnancies, but does not establish a mechanism. Further studies are needed to validate these findings.Öğe Diagnostic utility of lipocalin 2 and metalloproteinase 9 levels in early-stage endometrial cancer(Sage Publications Inc, 2024) Unuvar, Songul; Melekoglu, Rauf; Yuce, Hande; Celik, Nesibe Zeyveli; Okumus, Ezgi Bulut; Toprak, Serhat; Tanbek, KevserBackground Endometrial cancer (EC) is the fourth most common gynecologic malignancy among women. Histopathologic examination is considered gold-standard for diagnosis of EC. However, these examinations sometimes not be useful in distinguishing early stage types of EC. Object & imath;ves The current study aimed to investigate the clinicopathological significance of Lipocalin-2 (LCN2), matrix metalloproteinase-9 (MMP9), and ferritin in tumor progression. Methods A total of 98 patients (55 women newly diagnosed with early-stage endometrial cancer [study group] and 43 women with benign endometrial pathologies [control group]) were enrolled. Results There was a significant difference between diagnosis (p < 0.001), surgical procedure (p < 0.001), pathology (p = 0.002), stage (p < 0.001), lymphovascular invasion (LVI) (p = 0.002), myometrial invasion (p < 0.001), and staining intensity (p < 0.001), MMP9 (p = 0.023), LCN2 (p < 0.001), glucocorticoid (GC) (p = 0.048), tumor necrosis factor-alpha (TNF-alpha) (p = 0.044), menopause duration (p = 0.001), body weight (p < 0.001), and body mass index (BMI) (p < 0.001) were found to be higher, and ferritin levels (p = 0.047) were lower in the endometrial adenocarcinoma group compared to the benign endometrial pathologies. Conclus & imath;on LCN2, MMP9, and ferritin are practical markers in early cases of endometrial cancer. Serum LCN2 and MMP9 levels may be good clinical tools for the auxiliary diagnosis of early-stage endometrial cancer. Ferritin was also significantly sensitive. Therefore, detecting these markers together may be more beneficial for cancer diagnosis.Öğe Evaluation of dyslipidemia in preeclamptic pregnant women and determination of the predictive value of the hemato-lipid profile: A prospective, cross- sectional, case-control study(Galenos Yayincilik, 2022) Melekoglu, Rauf; Yasar, Seyma; Celik, Nesibe Zeyveli; Ozdemir, HalisObjective: In this study, we examined the serum hematologic and lipid parameters of pregnant women with preeclampsia and an age-and gestational-age matched normotensive control group. We also compared the ratios of hemato-lipid parameters defined as systemic inflammatory markers and determined the predictive value of these values in preeclampsia. Materials and Methods: All patients diagnosed with late-onset preeclampsia or severe preeclampsia between 34 and 40 weeks of gestation at Inonu University Faculty of Medicine between March 2019 and October 2020 were included. Results: A total of 253 pregnant women were included in the study period. When the study groups were compared in terms of hematological and blood lipid profile; while serum lymphocyte, triglyceride, and total cholesterol levels were significantly higher in the preeclampsia group than in the control group (p<0.001, p<0.001, p=0.013, respectively); high-density lipoprotein (HDL)-cholesterol levels were found to be significantly lower (p=0.017). The cut-off value for the monocyte/HDL ratio in predicting severe preeclampsia was 16.65 with 59.0% sensitivity and 85.4% specificity [the area under the receiver operating characteristic 0.756, 95% confidence interval (CI) 0.681-0.821, p<0.001]. Multivariate analysis showed that the monocyte/HDL ratio was independently associated with both preeclampsia and severe preeclampsia [odds ratio (OR): 1.094; 95% CI 1.009-1.185 and OR: 1.731; 95% CI 1.218-2.459, respectively]. Conclusion: This study demonstrated that serum triglyceride and total cholesterol levels were significantly higher and serum HDL-cholesterol levels were significantly lower in pregnant women with late-onset preeclampsia compared to normotensive pregnant women. Additionally, this study revealed that the measurement of monocyte/HDL ratio in the pregnant population could be a useful clinical tool for predicting preeclampsia.Öğe Evaluation of serum neopterin, periostin, Tenascin-C, tissue inhibitor of metalloproteinase-1 and matrix metalloproteinase-2 levels in obese pregnant women(Galenos Publ House, 2022) Melekoglu, Rauf; Unuvar, Songul; Turkmen, Nese Basak; Cetin, Asli; Celik, Nesibe Zeyveli; Yuce, Hande; Yasar, SeymaObjective: To investigate the role of extracellular matrix proteins in the molecular mechanism of inflammatory response in obese pregnant women by comparing serum levels of neopterin, periostin, Tenascin-C, tissue inhibitor of metalloproteinase-1, and matrix metalloproteinase-2 between obese and normal weight pregnant women in the third trimester. Materials and Methods: A prospective cross-sectional study was conducted between April 2021 and December 2021. A total of 84 pregnant women were included and three groups were formed with 28 participants in each group. Results: Serum levels of neopterin, periostin, Tenascin-C and tissue inhibitor of metalloproteinase-1 were significantly higher in class II-III obese pregnant women than in class I obese and normal-weight women (p=0.002, p<0.001, p<0.001, and p<0.001, respectively). There was no significant difference in serum matrix metalloproteinase-2 levels between the groups (p=0.769). Receiver operating characteristic curve analysis showed that Tenascin-C and periostin were effective in predicting pre-eclampsia [area under the curve (AUC)=0.82, 95% confidence interval (CI), 0.72-0.90, p<0.001 and AUC=0.71, 95% CI, 0.60-0.80, p=0.007, respectively]. Conclusion: This study demonstrated that class II-III obese pregnant women had significantly higher serum levels of neopterin, periostin, Tenascin-C, and tissue inhibitor of metalloproteinase-1 in the third trimester. These higher serum levels may be associated with the adverse perinatal effects of obesity during pregnancy.Öğe The Relationship Between CTRP Levels, Plasma Lipids, Trp64Arg Gene, and β3-AR in Preterm Birth(Wiley, 2025) Ozek, Dilan Askin; Melekoglu, Rauf; Yuce, Hande; Celik, Nesibe Zeyveli; Sahin, Yasemin; Tanbek, Kevser; Yasar, Seyma[No abstract available]
