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Nat Genet. 2012 Feb 5;44(3):328-33. doi: 10.1038/ng.1081.

Genome-wide association study identifies a variant in HDAC9 associated with large vessel ischemic stroke.

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1
Wellcome Trust Centre for Human Genetics, University of Oxford, UK.

Abstract

Genetic factors have been implicated in stroke risk, but few replicated associations have been reported. We conducted a genome-wide association study (GWAS) for ischemic stroke and its subtypes in 3,548 affected individuals and 5,972 controls, all of European ancestry. Replication of potential signals was performed in 5,859 affected individuals and 6,281 controls. We replicated previous associations for cardioembolic stroke near PITX2 and ZFHX3 and for large vessel stroke at a 9p21 locus. We identified a new association for large vessel stroke within HDAC9 (encoding histone deacetylase 9) on chromosome 7p21.1 (including further replication in an additional 735 affected individuals and 28,583 controls) (rs11984041; combined P = 1.87 × 10(-11); odds ratio (OR) = 1.42, 95% confidence interval (CI) = 1.28-1.57). All four loci exhibited evidence for heterogeneity of effect across the stroke subtypes, with some and possibly all affecting risk for only one subtype. This suggests distinct genetic architectures for different stroke subtypes.

PMID:
22306652
PMCID:
PMC3303115
DOI:
10.1038/ng.1081
[Indexed for MEDLINE]
Free PMC Article
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