Browsing by Author "Dursun, Recep"

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Association of Cytotoxic T Lymphocyte Antigen-4 Gene Polymorphisms with Psoriasis Vulgaris: A Case-Control Study in Turkish Population
(2018) Kulasizoglu, Sevsen; Dursun, Hatice Gul; Yilmaz, Huseyin Osman; Dursun, Recep; 0000-0002-7613-2240; 29850619; AAI-8932-2021
Psoriasis is a common, chronic, and autoimmune skin disease in which dysregulation of immune cells, particularly T cells, is thought to play an important role in the pathogenesis. Cytotoxic T lymphocyte antigen-4 (CTLA-4) expressed only on activated T cells is an immunoregulatory molecule and plays a role in the pathogenesis of autoimmune disorders. We aimed to determine whether CTLA-4 gene polymorphisms are associated with development and/or clinical features of psoriasis vulgaris (Pv). Genotyping of SNPs (-318C>T, +49A>G, and CT60A>G) in CTLA-4 gene was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 103 Pv patients and 102 controls. No statistically significant associations were detected in any of the investigated genetic models for the -318C>T polymorphism. The genotype distributions of +49A>G and CT60A>G were associated with Pv development. In haplotype analysis, while frequency of CAA haplotype was significantly higher in the control group, frequencies of CGG and CAG haplotype were significantly higher among the patients. However, all of CTLA-4 polymorphisms and haplotypes do not have an effect on severity and onset age of Pv. In conclusion, the +49A>G and CT60A>G polymorphisms may be risk factors for Pv development. Furthermore, CGG and CAG haplotypes may contribute to Pv development, while CAA haplotype may be protective against Pv.
A Cutaneous Infection Due to Mycobacterium Fortuitum
(2015) Ozden, Hale Turan; Dursun, Recep; Togan, Turhan
Cutaneous infections caused by non-tuberculous mycobacteria are uncommon and are so difficult to diagnose. Rapidly growing mycobacteria can cause skin and soft tissue infections in immunocompromised patients. Mycobacterium fortuitum is one of the rapidly growing mycobacterium. In this article, in an immuncompetent patient, we present a case of cutaneous infection in which M. fortuitum is isolated. Our patient recovered completely by clarithromycin and ciprofloxacin treatment given perorally for 12 weeks.
Epidemiology of Pemphigus in Turkey: One-year Prospective Study of 220 Cases
(2017) Dursun, Recep; 29252169
Pemphigus is a group of rare and life-threatening autoimmune blistering diseases of the skin and mucous membranes. Although they occur worldwide, their incidence shows wide geographical variation, and prospective data on the epidemiology of pemphigus are very limited. Objective of this work is to evaluate the incidence and epidemiological and clinical features of patients with pemphigus in Turkey. All patients newly diagnosed with pemphigus between June 2013 and June 2014 were prospectively enrolled in 33 dermatology departments in 20 different provinces from all seven regions of Turkey. Disease parameters including demography and clinical findings were recorded. A total of 220 patients were diagnosed with pemphigus during the 1-year period, with an annual incidence of 4.7 per million people in Turkey. Patients were predominantly women, with a male to female ratio of 1:1.41. The mean age at onset was 48.9 years. Pemphigus vulgaris (PV) was the commonest clinical subtype (n= 192; 87.3%), followed by pemphigus foliaceus (n= 21; 9.6%). The most common clinical subtype of PV was the mucocutaneous type (n= 83; 43.2%). The mean Pemphigus Disease Area Index was 28.14 +/- 22.21 (mean +/- Standard Deviation). The incidence rate of pemphigus in Turkey is similar to the countries of South-East Europe, higher than those reported for the Central and Northern European countries and lower than the countries around the Mediterranean Sea and Iran. Pemphigus is more frequent in middle-aged people and is more common in women. The most frequent subtype was PV, with a 9-fold higher incidence than pemphigus foliaceus.
Leser-Trelat sign or Leser-Trelat syndrome?
(2016) Gokturk, Huseyin Savas; Unler, Gulhan Kanat; Dursun, Recep