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Large scale replication and meta-analysis of variants on chromosome 4q25 associated with atrial fibrillation.


ABSTRACT: A recent genome-wide association study identified a haplotype block on chromosome 4q25 associated with atrial fibrillation (AF). We sought to replicate this association in four independent cohorts.The Framingham Heart Study and Rotterdam Study are community-based longitudinal studies. The Vanderbilt AF Registry and German AF Network (AFNet) are case-control studies. Participants with AF (n = 3508) were more likely to be male and were older than referent participants (n = 12 173; Framingham 82 +/- 10 vs. 71 +/- 13 years; Rotterdam 73 +/- 8 vs. 69 +/- 9 years; Vanderbilt 54 +/- 14 vs. 57 +/- 14 years; AFNet 62 +/- 12 vs. 49 +/- 14 years). Single nucleotide polymorphism (SNP) rs2200733 was associated with AF in all four cohorts, with odds ratios (ORs) ranging from 1.37 in Rotterdam [95% confidence interval (CI) 1.18-1.59; P = 3.1 x 10(-5)] to 2.52 in AFNet (95% CI 2.22-2.8; P = 1.8 x 10(-49)). There also was a significant association between AF and rs10033464 in Framingham (OR 1.34; 95% CI 1.03-1.75; P = 0.031) and AFNet (OR 1.30; 95% CI 1.13-1.51; P = 0.0002), but not Vanderbilt (OR 1.16; 95% CI 0.86-1.56; P = 0.33). A meta-analysis of the current and prior AF studies revealed an OR of 1.90 (95% CI 1.60-2.26; P = 3.3 x 10(-13)) for rs2200733 and of 1.36 (95% CI 1.26-1.47; P = 6.7 x 10(-15)) for rs10033464.The non-coding SNPs rs2200733 and rs10033464 are strongly associated with AF in four cohorts of European descent. These results confirm the significant relations between AF and intergenic variants on chromosome 4.

SUBMITTER: Kaab S 

PROVIDER: S-EPMC2663727 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature

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Large scale replication and meta-analysis of variants on chromosome 4q25 associated with atrial fibrillation.

Kääb Stefan S   Darbar Dawood D   van Noord Charlotte C   Dupuis Josée J   Pfeufer Arne A   Newton-Cheh Christopher C   Schnabel Renate R   Makino Seiko S   Sinner Moritz F MF   Kannankeril Prince J PJ   Beckmann Britt M BM   Choudry Subbarao S   Donahue Brian S BS   Heeringa Jan J   Perz Siegfried S   Lunetta Kathryn L KL   Larson Martin G MG   Levy Daniel D   MacRae Calum A CA   Ruskin Jeremy N JN   Wacker Annette A   Schömig Albert A   Wichmann H-Erich HE   Steinbeck Gerhard G   Meitinger Thomas T   Uitterlinden André G AG   Witteman Jacqueline C M JC   Roden Dan M DM   Benjamin Emelia J EJ   Ellinor Patrick T PT  

European heart journal 20090113 7


<h4>Aims</h4>A recent genome-wide association study identified a haplotype block on chromosome 4q25 associated with atrial fibrillation (AF). We sought to replicate this association in four independent cohorts.<h4>Methods and results</h4>The Framingham Heart Study and Rotterdam Study are community-based longitudinal studies. The Vanderbilt AF Registry and German AF Network (AFNet) are case-control studies. Participants with AF (n = 3508) were more likely to be male and were older than referent p  ...[more]

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