Genome-wide association study of intracranial aneurysm identifies three new risk loci.

Genome-wide association study of intracranial aneurysm identifies three new risk loci.
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DOI:
10.1038/ng.563
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发表时间:
2010-05
期刊:
影响因子:
30.8
通讯作者:
--
中科院分区:
生物学1区
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囊状颅内动脉瘤(IA)是颅内动脉壁的球囊样扩张;其出血通常导致严重的神经功能损害和死亡。我们报告了第二个全基因组关联研究,其中包括来自欧洲和日本的发现和复制队列,包括5,891例病例和14,181例对照,发现队列中有1832,000个基因分型和插补SNP。我们发现了三个新的基因座,在合并的数据集中显示出与IA相关的强有力证据,包括18q11.2上的RBBP 8附近的区间(OR=1.22,P=1.1×10-12),13q13.1上的STARD 13/KL(OR=1.20,P=2.5×10-9)和10q24.32上的基因富集区(OR=1.29,P=1.2×10-9)。我们还证实了SOX 17(8q11.23-q12.1; OR=1.28,P=1.3×10-12)和CDKN 2A/B(9p21.3; OR=1.31,P=1.5×10-22)附近的先前关联。值得注意的是,几个假定的风险基因在细胞周期进程中发挥作用,可能影响负责血管形成和修复的祖细胞群体的增殖和衰老。
Saccular intracranial aneurysms (IAs) are balloon-like dilations of the intracranial arterial wall; their hemorrhage commonly results in severe neurologic impairment and death. We report a second genome-wide association study with discovery and replication cohorts from Europe and Japan comprising 5,891 cases and 14,181 controls with ∼832,000 genotyped and imputed SNPs across discovery cohorts. We identified three new loci showing strong evidence for association with IA in the combined data set, including intervals near RBBP8 on 18q11.2 (OR=1.22, P=1.1×10-12), STARD13/KL on 13q13.1 (OR=1.20, P=2.5×10-9) and a gene-rich region on 10q24.32 (OR=1.29, P=1.2×10-9). We also confirmed prior associations near SOX17 (8q11.23-q12.1; OR=1.28, P=1.3×10-12) and CDKN2A/B (9p21.3; OR=1.31, P=1.5×10-22). It is noteworthy that several putative risk genes play a role in cell-cycle progression, potentially affecting proliferation and senescence of progenitor cell populations that are responsible for vascular formation and repair.
DOI: 10.1038/ng2088
发表时间: 2007-07-01
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影响因子: 30.8
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影响因子: 3.5
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