Complement C3, C2, and factor B gene polymorphisms and age-related macular degeneration in a Greek cohort study.
2014
PurposeTo elucidate whether polymorphisms of C2, C3, and CFB genes are major genetic determinants of age-related macular degeneration (AMD) in a Greek population.MethodsThis was a case-control association study comprising 120 Greek patients with early and late-stage AMD and 140 independent controls of Caucasian origin. All participants were genotyped for rs547154, rs2230199, rs641153, and rs12614 polymorphisms by a combination of PCR and direct DNA sequencing assays.ResultsThe frequency of the rs2230199 G allele (minor allele) was significantly higher in patients with AMD in comparison with controls (0.34 vs 0.22, p = 0.0031) and similar to the frequency of other reported populations. There was a significant difference in the frequencies of the rs2230199 genotypes among cases and controls (p = 0.0055). rs2230199 was found to be a significant predictor of advanced AMD status (odds ratio 6.41, confidence interval [CI] 2.72-15.09, p<0.0001; area under the curve 0.706, CI 0.61-0.78, p<0.0001]). For the other ...
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