Person: ÖZGEN, ZÜLEYHA
Loading...
Email Address
Birth Date
Research Projects
Organizational Units
Job Title
Last Name
ÖZGEN
First Name
ZÜLEYHA
Name
3 results
Search Results
Now showing 1 - 3 of 3
Publication Open Access Growth Arrest-Specific 6 and Cardiometabolic Risk Factors in Patients with Psoriasis(WILEY, 2015-04) SEÇKİN GENÇOSMANOĞLU, DİLEK; Sunbul, Murat; Cagman, Zeynep; Gerin, Fethullah; Ozgen, Zuleyha; Durmus, Erdal; Seckin, Dilek; Ahmad, Sarfraz; Uras, Fikriye; Agirbasli, MehmetObjectivesAn increased risk for cardiovascular disease with psoriasis has been reported. Growth Arrest-Specific 6 (GAS6) amplifies pro-inflammatory endothelial cell activation via TAM receptors. However, it also inhibits inflammation by multiple mechanisms including phagocytosis. The objective of this study was to investigate whether plasma GAS6 levels are associated with conventional cardiometabolic (CM) risk factors in patients with psoriasis. MethodsForty patients diagnosed with psoriasis (22 male, mean age: 43.313.8years) and 40 age-/sex-matched healthy controls (22 male, mean age: 39.38.9years) were included in the study. CM risk factors (hypertension, hyperlipidemia, diabetes mellitus, and cigarette smoking) were identified. GAS6 levels were measured by ELISA. ResultsThere were no significant differences between the plasma GAS6 levels of patients with psoriasis compared to the control group (6.6 +/- 2.0ng/mL, 7.6 +/- 2.8ng/mL, respectively, P>0.05). However, GAS6 levels of patients with psoriasis having a smoking history (n=11) were significantly lower than both patients with psoriasis who had no smoking history (n=29) and controls (5.5 +/- 1.7ng/mL, 6.9 +/- 1.9ng/mL, 7.6 +/- 2.8ng/mL, respectively, P<0.05). Similarly, psoriasis patients with at least one CM risk factor showed lower GAS6 levels compared to subjects without any CM risk factor (5.7 +/- 1.7ng/mL, 7.3 +/- 2.0ng/mL, P<0.01). There was no correlation between the GAS6 level, disease duration or PASI score (r=0.150, -0.150, and P=0.310, 0.398, respectively). ConclusionsThis pilot study provides the first evidence in humans for an association between low plasma GAS6 levels and conventional risk factors in psoriasis. Further large scale, prospective studies are needed to confirm these results.Publication Open Access Effect of Dental Follicle Mesenchymal Stem Cells on Th1 and Th2 Derived Naive T Cells in Atopic Dermatitis Patients(MARMARA UNIV, INST HEALTH SCIENCES, 2019-08-31) GÖKER, MEHMET KAMİL; Zibandeh, Noushin; Genc, Deniz; Ozgen, Zuleyha; Duran, Yazgul; Kasap, Nurhan; Goker, Kamil; Baris, Safa; Ergun, Tulin; Akkoc, TuncObjective: The purpose of our study is to investigate the immunomodulatory effects of Dental Follicle Mesenchymal Stem Cells (DF-MSCs) on lymphocytes isolated from peripheral blood of Atopic Dermatitis (AD) patients, a Th2 disease and psoriasis, a Th1 / Th17 disease and compare them with healthy individuals in vitro. Methods: Patients with the AD (n = 9) and psoriasis (n = 6) who are followed up in Marmara University Pediatric Allergy and Immunology and Dermatology outpatient clinics and healthy subjects (n = 6) were included. Peripheral Blood Mononuclear Cells (PBMCs) were isolated from 20 ml of venous blood of all participants. Cells were cultured for 72 hours in the absence and presence of DF-MSCs with anti-CD3/anti-CD28 stimulation or without stimulation. At the end of this period, CD4+ and CD8+ T lymphocyte proliferation and cytokine levels from the culture supernatants were analyzed by flow cytometry. Results: In the presence of DF-MSCs, proliferation ratio was suppressed in both CD4+ and CD8+ cells in AD and psoriasis patients (p<0,05). IFN-gamma levels significantly increased in AD patients in the presence of DF-MSCs (p<0,05) whereas decreased significantly in psoriasis patients in the presence of DF-MSCs (p<0,05). IL-4 levels significantly decreased in AD patients in the presence of DF-MSCs (p<0,05) but remained unchanged in psoriasis patients (p>0,05). IL-10 increased significantly in both groups in the presence of DF-MSCs (p<0,05). Conclusion: Our results support immunoregulatory effects of DF-MSCs on both AD and psoriasis which are Th2 and Th1 / Th17 dominant diseases respectively. Our evidence-based results demonstrated that DF-MSCs could have a beneficial therapeutic implication for inflammatory skin diseases.Publication Metadata only Assessment of arterial stiffness and cardiovascular hemodynamics by oscillometric method in psoriasis patients with normal cardiac functions(SPRINGER, 2015) SEÇKİN GENÇOSMANOĞLU, DİLEK; Sunbul, Murat; Seckin, Dilek; Durmus, Erdal; Ozgen, Zuleyha; Bozbay, Mehmet; Bozbay, Ayfer; Kivrak, Tarik; Oguz, Mustafa; Sari, Ibrahim; Ergun, Tulin; Agirbasli, MehmetArterial stiffness is associated with increased cardiovascular risk. Pulse wave velocity (PWV) and augmentation index (AIx) are non-invasive markers for assessment of arterial stiffness. Increased arterial stiffness is associated with atherosclerosis in patients with psoriasis. Previous studies have shown that high neutrophil-to-lymphocyte ratio (NLR) predicts poor cardiovascular outcome. The aim of this study was to evaluate arterial stiffness and cardiovascular hemodynamics by oscillometric method in psoriasis patients with normal cardiac functions. Fifty consecutive patients with the diagnosis of psoriasis and 50 controls were included in the study. NLR was calculated as the ratio of neutrophil count to lymphocyte count. All patients underwent echocardiographic examination. Measurements of arterial stiffness were carried out using a Mobil-O-Graph arteriograph system. Fifty patients with psoriasis (26 male, mean age 43.3 +/- 13.2 years) and 50 controls (33 male, mean age 45.0 +/- 6.1 years) were included into the study. The distribution of cardiovascular risk factors was similar between the two groups, and NLR was significantly higher in patients with psoriasis (2.74 +/- 1.78 versus 1.82 +/- 0.52, p = 0.002). There was a weak correlation between NLR and PASI score without reaching statistical significance (r = 0.300, p = 0.060). While echocardiographic and hemodynamic parameters were comparable between psoriasis and control groups, heart rate was significantly higher in psoriasis group (81.5 +/- 15.1 and 75.2 +/- 11.8 beats/min, p = 0.021). Psoriasis patients had significantly higher AIx and PWV values as compared to controls (25.8 +/- 13.1 versus 17.4 +/- 12.3 %, p = 0.001 and 6.78 +/- 1.42 versus 6.18 +/- 0.80 m/s, p = 0.011, respectively). AI and PWV were significantly associated with psoriasis when adjusted by heart rate (p = 0.005, odds ratio 1.04, 95 % confidence interval 1.01-1.08 and p = 0.035, odds ratio 1.52, 95 % confidence interval 1.02-2.26, respectively). PWV significantly correlated with blood pressure, lipid levels, and several echocardiographic indices. AIx only correlated with left atrial diameter (r = 291, p = 0.040). Linear regression analysis was performed to find predictors of PWV. Central systolic blood pressure, left atrial diameter, and total cholesterol were independent predictors of PWV. PWV and AIx were significantly higher in patients with psoriasis. Assessment of arterial stiffness parameters may be useful for early detection of cardiovascular deterioration in psoriasis patients with normal cardiac functions. Novel inflammatory biomarkers such as NLR may elucidate the mechanism of vascular dysfunction in such patients.