| Literature DB >> 15761122 |
Robert J Klein1, Caroline Zeiss, Emily Y Chew, Jen-Yue Tsai, Richard S Sackler, Chad Haynes, Alice K Henning, John Paul SanGiovanni, Shrikant M Mane, Susan T Mayne, Michael B Bracken, Frederick L Ferris, Jurg Ott, Colin Barnstable, Josephine Hoh.
Abstract
Age-related macular degeneration (AMD) is a major cause of blindness in the elderly. We report a genome-wide screen of 96 cases and 50 controls for polymorphisms associated with AMD. Among 116,204 single-nucleotide polymorphisms genotyped, an intronic and common variant in the complement factor H gene (CFH) is strongly associated with AMD (nominal P value <10(-7)). In individuals homozygous for the risk allele, the likelihood of AMD is increased by a factor of 7.4 (95% confidence interval 2.9 to 19). Resequencing revealed a polymorphism in linkage disequilibrium with the risk allele representing a tyrosine-histidine change at amino acid 402. This polymorphism is in a region of CFH that binds heparin and C-reactive protein. The CFH gene is located on chromosome 1 in a region repeatedly linked to AMD in family-based studies.Entities:
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Year: 2005 PMID: 15761122 PMCID: PMC1512523 DOI: 10.1126/science.1109557
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728