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    Are increased carotid artery pulsatility and resistance indexes early signs of vascular abnormalities in young obese males?
    (WILEY-BLACKWELL, 2012) Ozari, H. Onur; Oktenli, Cagatay; Celik, Serkan; Tangi, Fatih; Ipcioglu, Osman; Terekeci, Hakan M.; Top, Cihan; Uzun, Mehmet; Sanisoglu, Yavuz S.; Nalbant, Selim
    Purpose: To provide insight into the factors by which obesity in itself may directly lead to early arterial damage, we aimed to determine early sonographic markers of obesity-related vascular dysfunction in young obese males. Methods: Thirty-five young obese males and 23 age-matched healthy male volunteers were recruited into the study. Common carotid artery pulsatility index and resistance index were calculated from blood flow velocities curves obtained by pulsed Doppler ultrasonography. Results: The mean pulsatility index, resistance index, body mass index, waist circumference, systolic and diastolic blood pressure, homeostasis model assessment for insulin resistance, plasma fasting glucose, insulin, C-peptide, triglycerides, low-density lipoprotein cholesterol, and high-sensitivity C-reactive protein were statistically higher in obese subjects than in healthy controls. Conclusions: Our results suggest that depressed vessel compliance and increased vascular resistance are features of young, obese, normotensive subjects independently of and in addition to cardiovascular risk factors. As changes in arterial wall properties may be incipient in young obese subjects, future studies will be required to demonstrate whether early intervention such as diet and exercise in this population can improve vascular functions. (C) 2012 Wiley Periodicals, Inc. J Clin Ultrasound, 2012
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    CD4+CD25(high), CD8+CD28-cells and thyroid autoantibodies in breast cancer patients
    (TERMEDIA PUBLISHING HOUSE LTD, 2014) Bilgi, Oguz; Karagoz, Bulent; Turken, Orhan; Gultepe, Mustafa; Ozgun, Alpaslan; Tuncel, Tolga; Emirzeoglu, Levent; Celik, Serkan; Muftuoglu, Tuba; Kandemir, Emin Gokhan
    Aim of the study: To investigate the percentage of CD4+CD25(high) cells (including Treg cells) and CD8+CD28- cells in breast cancer patients with and without high levels of autoimmune thyroid antibodies. Material and methods: Thirty-five women with breast cancer (9 of them having high thyroid antibodies) and fourteen healthy subjects were enrolled in this study. Flow cytometry was used to count CD4+CD25(high) cells and CD8+CD28- suppressive cells (CD8 cell subtypes). Results: In the patient group, the percentage of CD28 cells in CD8+ lymphocytes were higher [67.50% (55.1180.33) vs. 51.56% (42.5766.38); p = 0.021] and the percentage of CD28+CD45RO- cells (memory cells) in CD8+ lymphocytes were lower than in the control group. CD4+CD25(high) cell percentage in CD4+ lymphocytes was elevated in the patient group [6.44% (4.528.74) vs. 2.97% (1.724.34); p < 0.001]. When the cytometric parameters were compared between patients (with high vs. normal thyroid antibodies), the distribution of CD8+ cell subgroups was also similar. CD4+CD25high cells among CD4+ lymphocytes were decreased in patients with high levels of thyroid antibodies [5.19% (3.426.17) vs. 6.99% (4.829.95); p = 0.043]. Conclusions: CD4+CD25(high) cells may play a role in autoimmunity of breast cancer patients, and may be a predictive marker. Advanced studies which evaluate the possible links between regulatory cells and autoimmunity should be established in cancer patients.
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    High Frequency of Inherited Variants in the MEFV Gene in Acute Lymphocytic Leukemia
    (SPRINGER INDIA, 2011) Sayan, Ozkan; Kilicaslan, Emrah; Celik, Serkan; Tangi, Fatih; Erikci, Alev A.; Ipcioglu, Osman; Sanisoglu, Yavuz S.; Nalbant, Selim; Oktenli, Cagatay
    In the present study, we aimed to determine the frequency of inherited variants in the MEFV (Mediterranean FeVer), the gene responsible for familial Mediterranean fever (FMF), gene in patients with acute lymphocytic leukemia (ALL). The eight MEFV gene variants (M694I, M694V, M680I (G/C-A), V726A, R761H, E148Q and P369S) were detected in 36 patients with ALL and 65 healthy controls; none had own and/or family history compatible with FMF. We identified 11 heterozygous inherited variants in the MEFV gene in both ALL patients and controls. The mean overall frequency of inherited variants in the MEFV gene rate was higher in ALL patients than healthy controls (P = 0.040). It is interesting to note that M680I/0 is predominant variant in patients with ALL. In addition, E148Q variant frequency was also significantly higher in the patient group than the controls (P = 0.012). In conclusion, overall frequency of inherited variants in the MEFV gene was found to be higher in patients with ALL. Based on the present data, it is difficult to reach a definitive conclusion regarding the possibility that inherited variants in the MEFV gene could represent a causative role in ALL. However, the data of our study may provide some new insights in understanding of individual genetic differences in susceptibility to these neoplasms. Further investigations are needed to determine the actual role of inherited variants in the MEFV gene in pathogenesis of ALL.