Document Detail

Association study of multiple gene polymorphisms with the risk of adult-onset primary open-angle glaucoma in a Mexican population.
MedLine Citation:
PMID:  23206929     Owner:  NLM     Status:  Publisher    
The aim of this study was to investigate the association of multiple primary open-angle glaucoma (POAG)-risk alleles in a Mexican population for the first time. Genotyping was performed for a total of 26 previously associated alleles located in 11 different genes, including MYOC, CYP1B1, OPTN, IL-1A, TNF, OPA1, EDNRA, AGTR2, MTHFR, GSTM1, and GSTT1. The frequencies of these variants were compared in a group of 218 individuals (118 with POAG and 100 adult controls without the disease). Genomic DNA was extracted from blood leukocytes, and genotyping was performed using PCR followed by direct sequencing. GSTM1 and GSTT1 deletion variants were screened by agarose gel analysis. Individual SNP analysis showed that no specific variants conferred an elevated risk for developing POAG. However, the CG genotype for rs5335 polymorphism in EDNRA showed a protective effect against the development of POAG, as it provides an estimated odds ratio of 0.5 (95% CI, 0.3-0.9; p=0.03). Moreover, one haplotype consisting of rs1056827 and rs100012 in CYP1B1 gene was significantly associated with a protective effect against POAG (p=0.0045; OR=0.3; 95% CI, 0.1-0.7). This is the first case-control investigation of POAG-risk alleles in multiple genes in a Latino population. Although our results support that the analyzed variants are not major risk factors for POAG in this ethnic group, they also point toward a protective effect conferred by EDNRA rs5335, as well as by a CYP1B1 haplotype consisting of rs1056827 and rs100012. Our study emphasizes the importance of genotyping ethnic groups with a complex admixture of ancestral populations for contributing to dissecting the genetics of POAG.
Beatriz Buentello-Volante; Celia Elizondo-Olascoaga; Antonio Miranda-Duarte; Dalia Guadarrama-Vallejo; Jesús Cabral-Macias; Juan C Zenteno
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-30
Journal Detail:
Title:  Experimental eye research     Volume:  -     ISSN:  1096-0007     ISO Abbreviation:  Exp. Eye Res.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-12-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370707     Medline TA:  Exp Eye Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Research Unit-Genetics, Institute of Ophthalmology, "Conde de Valenciana," Mexico City, Mexico.
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