Yaman O
Erciyes University
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Publication
Featured researches published by Yaman O.
Seizure-european Journal of Epilepsy | 2003
Süleyman Yazar; Fehim Arman; Şaban Yalçın; Funda Demirtaş; Yaman O; İzzet Şahin
PURPOSE Cryptogenic epilepsy, defines a group of epilepsy syndromes for which an aetiology is unknown but an underlying brain disease is suspected. We selected patients in this subgroup of epilepsy and investigated the sero-positivity rate for anti-Toxoplasma IgG antibodies by Enzyme Linked Immunosorbent Assay (ELISA). We investigated the probable relationship between Toxoplasma gondii and cryptogenic epilepsy. METHODS We selected 50 patients with cryptogenic epilepsy, 50 patients with known cause epilepsy and 50 healthy volunteers and investigated the sero-positivity rate for anti-Toxoplasma IgG antibodies by ELISA. RESULTS The sero-positivity rate for anti-Toxoplasma IgG antibodies among cryptogenic epilepsy patients (52%) was found to be higher than healthy volunteers (18%) and known cause epilepsy patients (22%) with statistical significance, (X(2)=18.095, P<0.01). CONCLUSION There might be a causal relationship between chronic toxoplasmosis and the aetiology of cryptogenic epilepsy.
Yonsei Medical Journal | 2005
Süleyman Yazar; Bilal Dik; Saban Yalcin; Funda Demirtas; Yaman O; Mustafa Öztürk; Izzet Sahin
We present a case of oral myiasis in a 15-year-old boy with tuberculosis meningitis. The diagnosis was based on the visual presence of wriggling larvae about 1 cm in size and on the microscopic features of the maggots, especially those relating to stigmatic structures. The larvae were identified as third-stage larvae of Sarcophaga sp.
Ndt Plus | 2009
Tansu Sav; Yaman O; Ali Ihsan Gunal; Oktay Oymak; Cengiz Utas
A 67-year-old male continuous ambulatory peritoneal dialysis (CAPD) patient presented with abdominal pain and pruritus. Strongyloides stercoralis larvae were seen on dialysate sediment and stool microscopic examination. Albendazole was given and improved the symptoms in 4 days. There was no episode of relapsing peritonitis after the therapy. This is the first report of S. stercoralis peritonitis in patients on CAPD. Strongyloides should be considered as a probable peritoneal pathogen in CAPD patients.
Acta parasitologica Turcica | 2011
Ülfet Çetinkaya; Berna Hamamci; Muhittin Kaya; Yaman O; Süleyman Yazar
OBJECTIVE Toxoplasmosis is a major health problem in both developed and developing countries. Infection is transmitted to humans by consumption of raw or undercooked meat containing tissue cysts and by ingesting foods contaminated with oocysts from the feces of infected cats and felidae. In this study, it was aimed to investigate the incidence of T. gondii antibodies in 347 high school students from 28 different countries studying in Kayseri city. METHODS These students had ages ranging between 15 and 21 (average: 17.52 ± 1.36). Serum samples were researched by IFAT for T. gondii IgG and IgM antibodies. RESULTS 81 (23.3%) students were found to be seropositive for IgG, and 6 (1.72%) of students were positive for both IgG and IgM. There was no IgM seropositivity in IgG negative serum specimens. IgG avidity test was also done for 87 subjects who were found to be seropositive for anti-T. gondii IgG. The results indicated that 8 (9.2%) patients have equivocal range avidity and 79 (90.8%) patients have high avidity. CONCLUSION As a result, this disease, which is important in children and adolescents, can lead to severe disease staes. Therefore, in various regions, especially in the pediatric age group, sero-prevalence tests and necessary measures are needed in high sero-prevalent areas.
Acta parasitologica Turcica | 2010
Şahın I; Yaman O; Berna Hamamci; Ülfet Çetinkaya
Apicomplexan protozoa are a phylum of parazites that includes medically and agriculturally important pathogens. They are named for their cell apex which contains a number of organelles (rhoptri, micronemes, conoid, apical polar ring, dense granules and apicoplast), important for their invasion and development within host cells. Among important apicomplexan parasites that affect human health directly or indirectly are Plasmodium spp., Toxoplasma gondii, Cryptosporodium, Eimeria, Babesia, and Theileria. Apicomplexan parasites move and actively enter host cells by substrate-dependent gliding motility. In these parasites, gliding motility and host cell invasion are driven by an actomyosin-based system (Glydeosome). A gliding motor machinery is embeded between the plasma membrane and inner membrane complex (IMC), a unique double membrane layer. A unique actomyosin motor powers both host cell invasion and locomotion of apicomplexan invasive stage. The cytoplasmic motor, a transmembrane bridge, and surface ligants essential for cell invasion are conserved among the main apicomplexan pathogens. In this review, erythrocytet invasion of Plasmodial merozit, which is a model organism of apicomplexan parasites, has been reviewed in detail.
Journal of Medical Microbiology | 2004
Süleyman Yazar; Yaman O; Bulent Eser; Fatih Kurnaz; Izzet Sahin
Saudi Medical Journal | 2006
Süleyman Yazar; Yaman O; Fevziye Cetinkaya; Izzet Sahin
Yonsei Medical Journal | 2003
Süleyman Yazar; Funda Demirtas; Saban Yalcin; Yaman O; Bulent Tokgoz; Cengiz Utas; Izzet Sahin
Journal of Medical Microbiology | 2006
Süleyman Yazar; Mustafa Gür; Ibrahim Ozdogru; Yaman O; Abdurrahman Oguzhan; Izzet Sahin
Acta parasitologica Turcica | 2006
Süleyman Yazar; Tokgöz B; Yaman O; Izzet Sahin