@article {6370, title = {Shared genetic susceptibility to ischemic stroke and coronary artery disease: a genome-wide analysis of common variants.}, journal = {Stroke}, volume = {45}, year = {2014}, month = {2014 Jan}, pages = {24-36}, abstract = {

BACKGROUND AND PURPOSE: Ischemic stroke (IS) and coronary artery disease (CAD) share several risk factors and each has a substantial heritability. We conducted a genome-wide analysis to evaluate the extent of shared genetic determination of the two diseases.

METHODS: Genome-wide association data were obtained from the METASTROKE, Coronary Artery Disease Genome-wide Replication and Meta-analysis (CARDIoGRAM), and Coronary Artery Disease (C4D) Genetics consortia. We first analyzed common variants reaching a nominal threshold of significance (P<0.01) for CAD for their association with IS and vice versa. We then examined specific overlap across phenotypes for variants that reached a high threshold of significance. Finally, we conducted a joint meta-analysis on the combined phenotype of IS or CAD. Corresponding analyses were performed restricted to the 2167 individuals with the ischemic large artery stroke (LAS) subtype.

RESULTS: Common variants associated with CAD at P<0.01 were associated with a significant excess risk for IS and for LAS and vice versa. Among the 42 known genome-wide significant loci for CAD, 3 and 5 loci were significantly associated with IS and LAS, respectively. In the joint meta-analyses, 15 loci passed genome-wide significance (P<5{\texttimes}10(-8)) for the combined phenotype of IS or CAD and 17 loci passed genome-wide significance for LAS or CAD. Because these loci had prior evidence for genome-wide significance for CAD, we specifically analyzed the respective signals for IS and LAS and found evidence for association at chr12q24/SH2B3 (PIS=1.62{\texttimes}10(-7)) and ABO (PIS=2.6{\texttimes}10(-4)), as well as at HDAC9 (PLAS=2.32{\texttimes}10(-12)), 9p21 (PLAS=3.70{\texttimes}10(-6)), RAI1-PEMT-RASD1 (PLAS=2.69{\texttimes}10(-5)), EDNRA (PLAS=7.29{\texttimes}10(-4)), and CYP17A1-CNNM2-NT5C2 (PLAS=4.9{\texttimes}10(-4)).

CONCLUSIONS: Our results demonstrate substantial overlap in the genetic risk of IS and particularly the LAS subtype with CAD.

}, keywords = {Brain Ischemia, Coronary Artery Disease, Data Interpretation, Statistical, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Phenotype, Polymorphism, Single Nucleotide, Reproducibility of Results, Risk Factors, Stroke}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.113.002707}, author = {Dichgans, Martin and Malik, Rainer and K{\"o}nig, Inke R and Rosand, Jonathan and Clarke, Robert and Gretarsdottir, Solveig and Thorleifsson, Gudmar and Mitchell, Braxton D and Assimes, Themistocles L and Levi, Christopher and O{\textquoteright}Donnell, Christopher J and Fornage, Myriam and Thorsteinsdottir, Unnur and Psaty, Bruce M and Hengstenberg, Christian and Seshadri, Sudha and Erdmann, Jeanette and Bis, Joshua C and Peters, Annette and Boncoraglio, Giorgio B and M{\"a}rz, Winfried and Meschia, James F and Kathiresan, Sekar and Ikram, M Arfan and McPherson, Ruth and Stefansson, Kari and Sudlow, Cathie and Reilly, Muredach P and Thompson, John R and Sharma, Pankaj and Hopewell, Jemma C and Chambers, John C and Watkins, Hugh and Rothwell, Peter M and Roberts, Robert and Markus, Hugh S and Samani, Nilesh J and Farrall, Martin and Schunkert, Heribert} }