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Nat Genet. 2006 Sep;38(9):1049-54. Epub 2006 Aug 27.

CFH haplotypes without the Y402H coding variant show strong association with susceptibility to age-related macular degeneration.

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  • 1Department of Biostatistics, 1420 Washington Heights, University of Michigan, Ann Arbor, Michigan 48109, USA.

Abstract

In developed countries, age-related macular degeneration is a common cause of blindness in the elderly. A common polymorphism, encoding the sequence variation Y402H in complement factor H (CFH), has been strongly associated with disease susceptibility. Here, we examined 84 polymorphisms in and around CFH in 726 affected individuals (including 544 unrelated individuals) and 268 unrelated controls. In this sample, 20 of these polymorphisms showed stronger association with disease susceptibility than the Y402H variant. Further, no single polymorphism could account for the contribution of the CFH locus to disease susceptibility. Instead, multiple polymorphisms defined a set of four common haplotypes (of which two were associated with disease susceptibility and two seemed to be protective) and multiple rare haplotypes (associated with increased susceptibility in aggregate). Our results suggest that there are multiple disease susceptibility alleles in the region and that noncoding CFH variants play a role in disease susceptibility.

PMID:
16936733
[PubMed - indexed for MEDLINE]
PMCID:
PMC1941700
Free PMC Article

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