Yazar "Altinyazar, Cevdet" seçeneğine göre listele
Listeleniyor 1 - 3 / 3
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Cytomorphometric Characteristics of Buccal Mucosal Cells in Behcet's Disease Patients(HINDAWI LTD, 2016) Aktunc, Erol; Oz, Zehra Safi; Bektas, Sibel; Altinyazar, Cevdet; Koca, Rafet; Bostan, SerdarBackground. The aim of this study was to compare the cytomorphometric characteristics of the buccal cells of Behccet's disease patients with those of healthy controls. Methods. This case-control study compared a group of 30 patients with Behcet's disease with an age-and gender-matched control group of 30 healthy individuals. The buccal mucosal smears were stained using the Papanicolaou technique for cytomorphometric analyses. The nuclear and cytoplasmic areas were evaluated using digital image analysis; the ratio of nuclear to cytoplasmic areas and nuclear roundness are presented. Results. The nuclear and cytoplasmic areas of the BD patients' cells were significantly smaller than those of the healthy controls' cells, while the nucleus-to-cytoplasm ratio and neutrophil infiltration rate did not differ significantly between the groups. However, the nuclear area, cytoplasmic area, nucleus-to-cytoplasm ratio, and nuclear roundness factor were significantly higher in patients without aphthae. The neutrophil infiltration rate did not differ significantly in patients with or without aphthae. Conclusion. Behcet's disease can produce cytomorphometric changes in buccal cells that are detectable by exfoliative cytology and cytomorphometric analysis techniques.Öğe Investigation of the Association of the Second-to-Fourth Digit Ratio with Skin Sebum Levels in Females with Acne Vulgaris(ADIS INT LTD, 2015) Bilgic, Ozlem; Altinyazar, Cevdet; Hira, Huseyin; Dogdu, MuratBackground A relationship between acne vulgaris (AV) and the masculinized (lower) second-to-fourth digit (2D:4D) ratio in females was demonstrated in our previous study. Development of the digits and the sebaceous glands both occur during the same gestational period; therefore, the association between the 2D:4D ratios and AV may result from the effects of the prenatal endocrine environment on the sebaceous glands. Objective The aim of this study was to evaluate the relationship between the 2D:4D ratio and sebum levels in the skin of females with AV. Methods In total, 215 female AV patients and 92 healthy controls, aged 18-35 years, were enrolled in this study. Finger-length measurements were made using a digital Vernier caliper, and the sebum levels of five facial areas were measured using a Sebumeter SM 815. Acne severity was assessed using the International Consensus Conference on Acne Classification System. Results The 2D:4D ratios of the AV patients were significantly lower than those of the controls, for both hands. The mean sebum levels in the T-zone, U-zone and whole face were significantly higher for AV patients compared with controls. The 2D:4D ratio in the left hand showed significant negative correlations with the sebum levels in the U-zone; however, no association was found between the 2D:4D ratios and sebum levels in the T-zone and whole face. While acne severity was positively correlated with skin sebum levels, no correlation between acne severity and 2D:4D ratios was observed. Conclusion This study provides preliminary evidence regarding the association between lower 2D:4D ratios and higher rates of sebum secretion in the U-zone for females with AV. The 2D:4D ratio might be a predictor of sebum levels, as well as acne development, in females.Öğe Serum levels of TWEAK in patients with psoriasis vulgaris(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016) Bilgic, Ozlem; Sivrikaya, Abdullah; Toker, Aysun; Unlu, Ali; Altinyazar, CevdetTumour necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) has been implicated in the pathogenesis of a variety of inflammatory disorders and autoimmune diseases. However, studies conducted on the relationship of TWEAK and psoriasis patients are limited. In this study, we aimed to explore the serum levels of TWEAK and investigated whether TWEAK levels are associated with clinical variables and expression of other well-known psoriasis-related cytokines including IL-6, IL-23 and TNF-alpha. Fortyfive patients with chronic plaque psoriasis and 43 controls were enrolled in this study. The severity of psoriasis was assessed by the Psoriasis Area and Severity Index (PASI). Serum levels of cytokines were measured using commercial enzyme-linked immunosorbent assay (ELISA) kits. The mean TWEAK, IL-6, IL-23, and TN-alpha levels were significantly higher in psoriasis patients than in control subjects. However, there were no significant correlations between the psoriasis severity, the illness duration and serum cytokine levels. This study shows that TWEAK may be associated with the pathogenesis of psoriasis, like TNF-alpha, IL-6, and IL-23. (C) 2015 Elsevier Ltd. All rights reserved.