Ahmet Yeşilyurt

Learn More
INTRODUCTION Nuclear medicine workers are occupationally exposed to chronic ionizing radiation. It is known that ionizing radiation may have damaging effects on chromosomes. In the present study, we investigated the genotoxic effects of ionizing radiation on nuclear medicine workers. We used two different indicators of genotoxicity methods: sister chromatid(More)
OBJECTIVE Prenatal cytogenetic diagnostic methods for the diagnosis of fetal chromosomal anomalies have been used reliably over the last 40 years. Advanced maternal age has become a basic indication for amniocentesis. METHODS We examined the results of the chromosome analyses of 3485 women that had amniocentesis for any reason during their antenatal care(More)
In this study, we aimed to make a comparison between chromosomal effects caused by conventional phototherapy and intensive phototherapy in jaundiced newborns. The study group included 83 newborns with gestation age of > or =35 weeks, and on days 3-10 after birth. Newborns were divided into four groups on the basis of total serum bilirubin (TSB) levels upon(More)
BACKGROUND Otocephaly or dysgnathia complex is characterised by mandibular hypoplasia/agenesis, ear anomalies, microstomia, and microglossia; the molecular basis of this developmental defect is largely unknown in humans. METHODS AND RESULTS This study reports a large family in which two cousins with micro/anophthalmia each gave birth to at least one child(More)
OBJECTIVE The 45,X/46,XY mosaic karyotype is expressed by a spectrum of genital phenotypes, ranging from normal males through to ambiguous genitalia and to normal females. CASE REPORTS We present three cases of men with azoospermia or severe oligozoospermia, and a 45,X/46,XY mosaic karyotype and two with a Y-chromosome microdeletion. Phenotypically, they(More)
BACKGROUND Thyroid cancers are the most frequently occurring endocrine malignancy worldwide. In Turkey, thyroid cancers are ranked 2(nd) on the incidence list in women, with a rate of 16.2%, but they are not included among the top 10 cancer types in men. AIMS To identify the contribution of the BRAF(V600E) mutation, and the RET/PTC1 and PAX8-PPARγ(More)
PURPOSE Although deep vein thrombosis and thromboembolic diseases differ among various races, they are still important in our day. The difficulties in treatment and following-up of these diseases are caused by secret genetic mutations rather than predisposing factors. METHODS Between January 2011 and May 2013, patients who were traced for deep vein(More)
OBJECTIVE The aim was to determine whether inherited thrombophilia increases the risk of pre-eclampsia (PE) or interferes with its clinical course. MATERIAL AND METHODS We included 50 patients with severe PE and 50 healthy pregnant women. Patients were evaluated for inherited thrombophilia. RESULTS Fourteen patients in the study group was factor V(More)
OBJECTIVE Hydatid disease occurs throughout the world and is treated with both surgery and medical administration of albendazole. Some adverse effects of albendazole are known. However, its genotoxic effect on humans has not been reported yet. In this study, we aimed to investigate the genotoxic effect of albendazole on human lymphocytes in vivo. METHODS(More)
PURPOSE To evaluate the association between familial Mediterranean fever (FMF) and keratoconus (KC). METHODS This retrospective case-control study was performed to compare the prevalence of KC in patients with FMF with the corresponding prevalence in control patients without FMF referred to Genetic Diagnostic Center at Diskapi Yildirim Beyazit Training(More)