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Relevance of complement factor H-related 1 (CFHR1) genotypes in age- related macular degeneration (AMD)

AuthorsMartínez-Barricarte, Rubén ; Recalde, Sergio; Fernández-Robredo, Patricia; Millán, Isabel; Olavarrieta, Leticia; Viñuela, Antonio; Pérez-Pérez, Julián; García-Layana, Alfredo; Rodríguez de Córdoba, Santiago
Issue Date1-Mar-2012
PublisherAssociation for Research in Vision and Ophthalmology
CitationInvestigative Ophthalmology & Visual Science 53(3):1087-1094(2012)
AbstractPurpose. Age-related macular degeneration (AMD) has a strong genetic component with a major locus at 1q31, including the complement factor H (CFH) gene. Detailed analyses of this locus have demonstrated the existence of one SNP haplotype block, carrying the CFH 402His allele, which confers increased risk for AMD, and two protective SNP haplotypes, one of them carrying a deletion of the CFHR1 and CFHR3 genes (ΔCFHR3-CFHR1). The purpose of these studies was to evaluate the contribution of newly described CFHR1 alleles to the association of the 1q31 locus with AMD. Methods. Two hundred fifty-nine patients and 191 age-matched controls of Spanish origin were included in a transversal case–control study using multivariate logistic regression analysis and ROC (receiver operating characteristic) statistics to generate and test models predictive of the development of AMD. Results. This study showed for the first time that a particular CFHR1 allotype, CFHR1*A, is strongly associated with AMD (odds ratio, 2.08; 95% confidence interval, 1.59–2.73; P < 0.0001) and illustrate a peculiar genotype–phenotype correlation between the CFHR1 alleles and different diseases that may have important implications for understanding the pathophysiology of AMD. It also shows that CFHR1*A is in strong linkage disequilibrium with the CFH 402His allele, which provides additional candidate variants within the major risk haplotype at 1q31, promoting its association with AMD. Further, using the Spanish population as a model, the results showed that analysis of the CFHR1 genotypes provide sufficient information to delineate the individual risk of developing AMD. Conclusions. The results support a relevant role of CFHR1 in the pathogenesis of AMD
Description31 p.-4 fig.-4 tab.
Publisher version (URL)http:dx.doi.org/10.1167/iovs.11-8709
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