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Atherosclerosis. 2009 Nov;207(1):144-9. doi: 10.1016/j.atherosclerosis.2009.03.038. Epub 2009 Apr 5.

Identification of CELSR1 as a susceptibility gene for ischemic stroke in Japanese individuals by a genome-wide association study.

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  • 1Department of Human Functional Genomics, Life Science Research Center, Mie University, Tsu, Mie 514-8507, Japan. yamada@gene.mie-u.ac.jp

Abstract

OBJECTIVE:

We have performed a genome-wide association study (GWAS) to identify genetic variants that confer susceptibility to ischemic stroke.

METHODS:

A total of 6341 individuals from three independent populations was examined. Subject panel A comprised 131 individuals with ischemic stroke and 135 controls; subject panel B comprised 790 individuals with ischemic stroke and 3435 controls; and subject panel C comprised 71 individuals with ischemic stroke and 1779 controls. A GWAS for ischemic stroke was performed in subject panel A with the use of the GeneChip Human Mapping 500K Array Set (Affymetrix).

RESULTS:

The relation of 100 single nucleotide polymorphisms (SNPs) selected by the GWAS to ischemic stroke was examined in 705 subjects with ischemic stroke and 3426 controls selected from subject panel B. Three SNPs (rs1671021 of LLGL2, rs9615362 of CELSR1, and rs753307 of RUVBL2) were significantly (P<0.05) associated with ischemic stroke. After DNA sequencing of linkage disequilibrium blocks containing these SNPs, three tag SNPs (rs6007897 of CELSR1, rs1671021 of LLGL2, and rs1062708 of RUVBL2) and a nonsynonymous SNP (rs4044210 of CELSR1) were examined for their relation to ischemic stroke in subject panels B and C. Both rs6007897 (A-->G, Thr2268Ala) and rs4044210 (A-->G, Ile2107Val) of CELSR1 as well as rs1671021 (T-->C, Phe479Leu) of LLGL2 were significantly associated with ischemic stroke in subject panel B. The rs6007897 and rs4044210 polymorphisms of CELSR1 were also significantly associated with ischemic stroke in subject panel C.

CONCLUSION:

CELSR1 is a susceptibility gene for ischemic stroke in Japanese individuals, although the functional relevance of the identified SNPs was not determined.

PMID:
19403135
[PubMed - indexed for MEDLINE]
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