Yazar "Celik, Sevim Karakas" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    The G1057D polymorphism of insulin receptor substrate-2 associated with gestational diabetes mellitus
    (Taylor & Francis Ltd, 2014) Ayaz, Lokman; Celik, Sevim Karakas; Cayan, Filiz
    Objective: The Gly1057D polymorphism in the insulin receptor substrate-2 (IRS-2) gene has been reported to be associated with insulin resistance, obesity and type 2 diabetes; little is known about its possible association with gestational diabetes mellitus (GDM). To investigate this association we determined the distribution of its genotypes and frequency of alleles in GDM patients. Materials and methods: The study population consisted of 94 subjects; among them were 44 patients with GDM and 50 healthy controls without diabetes. Genomic DNA was extracted from the leukocyte by high pure polymerase chain reaction (PCR) template preparation kit. Genetic polymorphism of IRS-2 G1057D was detected by using PCR-based restriction fragment-length polymorphism (RFLP). Results: For IRS-2 G1057D polymorphism, there was no significant difference in genotype distribution between GDM patients and controls. The risk for GDM was 2.97 times higher (95% CI: 0.89-9.93, p = 0.076) in the individuals with the IRS-2 DD genotype compared to the GG genotype. Also individuals with the IRS-2 D allele had a significantly higher risk of GDM compared with individuals with the IRS-2 G allele, with a relative risk of 1.86 (95% CI: 1.02-3.37, p = 0.042) for cases compared with population controls. Conclusion: These results suggest that IRS-2 1057D allele may be associated with GDM.
  • Küçük Resim Yok
    Öğe
    Variant Analysis of the Sirtuin (SIRT1) Gene in Multiple Sclerosis
    (Kuwait Medical Assoc, 2013) Edgunlu, Tuba Gokdogan; Celik, Sevim Karakas; Emre, Ufuk; Unal, Aysun Eroglu; Dursun, Ahmet
    Objective: Multiple sclerosis (MS) is an inflammatory demyelinating disease affecting the central nervous system. Although the exact pathogenesis of MS is unknown, it is generally considered to be an autoimmune disease, with numerous genetic and environmental factors determining disease susceptibility and severity. Sirtuin 1 (SIRT1) is a neuroprotective enzyme in MS patients. The aim of our study was to investigate the relationship between a genetic variant of SIRT1 and MS. Design: Controlled prospective study Setting: Department of Neurology, Bulent Ecevit University Medical Faculty, Zonguldak, Turkey Subjects and Methods: We determined SIRT1 genotypes by polymerase chain reaction (PCR) and confronting two-pair primers (CTPP) methods in 93 MS patients and 100 healthy controls Intervention: For genetic analysis, 5 ml of venous blood was drawn from each patient into tubes containing EDTA Main Outcome Measures: SIRT1 gene polymorphisms and recorded expanded disability status scale (EDSS) for MS patients Results: We found a significant difference between the rs2273773 polymorphism of the SIRT1 gene of MS and the control group (p = 0.011). We also found an association between MS disease and the haplotypes of rs7895833, rs7069102 and rs2273773 polymorphisms. Conclusion: We have shown that rs2273773 polymorphism of the SIRT1 gene might be a risk factor for MS disease in the Turkish population. Also, additional studies are needed to clarify the role of the SIRT1 gene in the pathogenesis of MS disease.