relation between endothelial nitric oxide synthase genotypes and oxidative stress markers in larynx cancer

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ID: 193466
2016
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Abstract
Nitric oxide synthase (eNOS/NOS3) is responsible for the endothelial synthesis of nitric oxide (NO•). G894T polymorphism leads to the amino acid substitution from Glu298Asp that causes lower NOS3 activity and basal NO• production in NOS3 894T (298Asp) allele carriers compared with the GG homozygotes. NO• acts as an antioxidant protecting against Fenton’s reaction which generates highly reactive hydroxyl radicals. Allelic variation of NOS3 may influence an individual’s risk of laryngeal cancer (LC). In the current study we have examined the possible relationship between NOS3 G894T genotypes and various systemic oxidative damage markers such as protein carbonyl, advanced oxidation protein products, Cu, Zn-superoxide dismutase, thiol group fractions, and lipid hydroperoxides in LC patients. Genotyping was carried out by PCR-RFLP. In LC patients with TT genotype, Cu, Zn-superoxide dismutase activities and nonprotein thiol levels were significantly higher than the controls. In patients with GT and GG genotype, high levels of lipid hydroperoxides showed statistical significance when compared to controls. Our results indicate a potential relationship among G894T polymorphism of NOS3, and impaired redox homeostasis. Further studies are required to determine the role of NOS3 gene polymorphism and impaired plasma redox homeostasis.
Reference Key
yanar2016oxidativerelation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;K. Yanar;U. Çakatay;S. Aydın;A. Verim;P. Atukeren;N. E. Özkan;K. Karatoprak;T. Cebe;S. Turan;E. Ozkök;G. Korkmaz;C. Cacına;O. Küçükhüseyin;İ. Yaylım
Journal journal of aoac international
Year 2016
DOI
10.1155/2016/4985063
URL
http://dx.doi.org/10.1155/2016/4985063
Keywords
cytology

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