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Polymorphisms of the endothelial nitric oxide synthase gene in breast cancer: a genetic association study and meta-analysis.
MedLine Citation:
PMID:  20720556     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The endothelial nitric oxide synthase gene (NOS3) has been proposed as a candidate gene for breast cancer (BC), however, the specific role of variants and haplotypes has not been clarified. We examined the association of two polymorphisms (4b/a and G894T) and their haplotypes in a case-control sample of 306 patients with BC and in 131 healthy females. In addition, a meta-analysis of studies investigating association between NOS3 polymorphisms and BC was conducted. The single locus analysis for the two polymorphisms revealed an association only for the 4b/a polymorphism, but adjustment for age diminished this association (odds ratio (OR) (95% confidence interval)=0.98 (0.34-2.81)). The analysis of haplotypes showed an association for two haplotypes involving the 894T allele (bT and aT) (P<0.05). The meta-analysis for both polymorphisms produced nonsignificant associations without significant heterogeneity. A positive association was detected for the promoter T786C polymorphism (pooled OR=1.51 (1.07-2.12)), but this comparison was based on few studies. The available evidence from our study and the meta-analysis cannot support a major contributory role of these common NOS3 polymorphisms in BC, although future larger studies may help in drawing safer conclusions about the genetics of BC.
Authors:
Elias Zintzaras; Maria Grammatikou; Georgios D Kitsios; Chrysa Doxani; Nikos Zdoukopoulos; Christos Papandreou; Anna Patrikidou
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Publication Detail:
Type:  Journal Article     Date:  2010-08-19
Journal Detail:
Title:  Journal of human genetics     Volume:  55     ISSN:  1435-232X     ISO Abbreviation:  J. Hum. Genet.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9808008     Medline TA:  J Hum Genet     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  743-8     Citation Subset:  IM    
Affiliation:
Department of Biomathematics, University of Thessaly School of Medicine, Larissa, Greece.
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Erratum In:
J Hum Genet. 2010 Nov;55(11):777
Note: Patrikidou, Anna [added]

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