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  • Küçük Resim
    Öğe
    LOX-1 gene variants and maternal levels of plasma oxidized LDL and malondialdehyde in patients with gestational diabetes mellitus
    (Springer Heidelberg, 2016) Aydemir, Birsen; Baykara, Onur; Cinemre, Fatma Behice Serinkan; Cinemre, Hakan; Tüten, Abdullah; Kızıler, Ali Rıza; Uzun, Hafize
    Purpose The aim of this study was to investigate the relationships between the maternal levels of oxidized LDL (ox-LDL), lipid peroxidation marker malondialdehyde (MDA) and LOX-1 3'UTR188C/T and K167N single nucleotide polymorphisms in pregnant Turkish women with gestational diabetes mellitus (GDM). Methods 116 pregnant women with GDM and 120 healthy pregnant women from the same geographic region were included in the study. Polymerase chain reaction-based restriction analysis was used to identify 3'UTR188C/T and K167N polymorphisms of the LOX-1 gene. Plasma ox-LDL and MDA levels were determined by enzyme-linked immunosorbent assay and spectrophotometric method in all study subjects, respectively. Results Our results indicated that the distribution of the LOX-1 3'UTR188C/T and K167N genotypes and alleles did not differ significantly among subjects with or without GDM (p> 0.05). TT and NN genotype carriers are associated with some glucose metabolism parameters (p< 0.05). There were no significant differences among plasma ox-LDL and MDA levels with regard to LOX-1 3'UTR188C/T and K167N polymorphisms in GDM group and control subjects (p> 0.05). According to the combined genotype analysis of LOX-1 3'UTR 188 TT and K167N NN polymorphisms, plasma MDA and ox-LDL levels were significantly different between women with GDM and healthy subjects either with or without combined TT/NN genotype carriers (p< 0.001). Conclusions According to our results, ox-LDL and MDA levels were increased in GDM pregnant women and healthy pregnant women either with or without combined TT/NN genotype carriers, for our Turkish sample, these genotype carriers appear to be related with increased oxidative stress in patients with GDM.
  • Küçük Resim Yok
    Öğe
    Oxidized Low Density Lipoprotein Receptor 1 3'UTR 188C>T Gene Polymorphism in Patients with Coronary Artery Bypass Grafting
    (Galenos Publ House, 2023) Bahtiyar, Nurten; Baykara, Onur; Hacioglu, Yalcin; Oner, Tuba; Cinemre, Fatma Behice; Aydemir, Birsen; Onaran, Ilhan
    Aim: Coronary artery disease (CAD) is a pathological process characterized by atherosclerotic plaque accumulation in the epicardial arteries. Inflammation and high lipid levels play a role in pathological changes in atherosclerosis. Besides traditional risk factors, genetic factors such as single nucleotide polymorphism (SNPs) can be involved in disease process. In this study, we aimed to evaluate the effects of oxidized low density lipoprotein receptor 1 (OLR1) 3'UTR188C>T gene polymorphism, C -reactive protein (CRP), and lipid status in patients with coronary artery bypass grafting (CABG). Materials and Methods: The study population consisted of 109 CAD patients who had undergone CABG, and 127 healthy controls. The OLR1 3'UTR188C>T polymorphism was genotyped using PCR-RFLP technique. Serum CRP, high -density lipoprotein -cholesterol (HDL-C), and low -density lipoprotein -cholesterol (LDL-C) levels were measured with an automatic biochemistry analyzer. Results: The distribution of the OLR1 3'UTR188C>T genotypes and alleles did not differ significantly between CAD patients with CABG and controls. Serum CRP levels were increased in patients compared to the control group (p<0.001), but HDL-C, and LDL-C levels were not different between two groups. Traditional risk factor such as cigarette smoking, alcohol use, family history, diabetes mellitus and hypertension were increased in patients compared to the control group (p<0.001, for each). The CRP levels were higher in patients with the TT, CT, and CC genotypes than in controls with the same genotypes (p<0.001, p<0.01, and p<0.05, respectively). Conclusion: OLR1 3'UTR 188C>T polymorphism may not be involved in susceptibility to atherosclerosis. However, traditional risk factors in atherosclerosis such as smoking, alcohol consumption, family history, hypertension, diabetes mellitus, and circulating CRP levels were increased in our CABG population. The evaluation of OLR1 3'UTR188C>T and different OLR1 SNPs may be useful for their single and combined effects in atherosclerosis.