The T-786C, G894T, and intron 4 VNTR (4a/b) polymorphisms of the endothelial nitric oxide synthase gene in prostate cancer cases

The T-786C, G894T, and intron 4 VNTR (4a/b) polymorphisms of the endothelial nitric oxide... In previously conducted some studies it has been revealed that nitric oxide (NO) and nitric oxide synthase (NOS) system play a significant role in carcinogenesis. Nitric oxide (NO) is regulated by endothelial nitric oxide synthase (eNOS) enzyme which is one of the isoenzymes of NO synthase (NOS). In this study we have tried to come to a conclusion about whether eNOS gene T-786C, G894T and intron 4 VNTR (4a/b) polymorphisms might be considered as a risk factor causing prostate cancer (PCa) or not. A total of 200 subjects were included in this research. 84 patients with PCa (mean age 70.0 ± 6.4) and 116 healthy controls (mean age 69.9 ± 7.5) were recruited in this case-control study. Genomic DNA was extracted using the QIAamp DNA Blood Mini Kit (QIAGEN GmbH, Maryland, USA), according to the manufacturer’s guidelines. The T-786C, G894T and intron 4 VNTR (4a/b) polymorphisms were amplified using polymerase chain reation (PCR), detected by restriction fragment length polymorphism (RFLP). For T-786C polymorphism CC genotype [odds ratio (OR): 0.34, 95% confidence interval (CI): 0.15–0.78, P = 0.009)] and allele frequency (OR: 0.631, CI: 0.421–0.946, P = 0.026) is significant for control. In patients with PCa eNOS G894T polymorphism, both GT (OR: 0.069, CI: 0.027–0.174; P = 0.0001) and TT (OR: 0.040, CI: 0.013–0.123; P = 0.0001) genotype distribution, and also T allele frequency (OR: 0.237, CI: 0.155–0.362, P = 0.0001) were considered significant statistically. While genotype distribution for the other polymorphism eNOS, intron 4 VNTR (4a/b), is insignificant statistically, “a” allele frequency was found out to be significant (OR: 2.223, CI: 1.311–3.769, P = 0.003). In this study we indicated that genotype and allele frequencies of eNOS T-786C and G894T polymorphisms are statistically significant in patients with PCa. eNOS T-786C and G894T polymorphisms may be associated with PCa susceptibility in the Turkish population. In contrast, intron 4 VNTR (4a/b) polymorphism may not be related to PCa susceptibility in these patients. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

The T-786C, G894T, and intron 4 VNTR (4a/b) polymorphisms of the endothelial nitric oxide synthase gene in prostate cancer cases

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Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795416020022
Publisher site
See Article on Publisher Site

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