Genetic variation at 16q24.2 is associated with small vessel stroke.
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Traylor Matthew, Malik Rainer, Nalls Mike A, Cotlarciuc Ioana, Radmanesh Farid, Thorleifsson Gudmar, Hanscombe Ken B, Langefeld Carl, Saleheen Danish, Rost Natalia S, Yet Idil, Spector Tim D, Bell Jordana T, Hannon Eilis, Mill Jonathan, Chauhan Ganesh, Debette Stephanie, Bis Joshua C, Longstreth W T, Ikram M Arfan, Launer Lenore J, Seshadri Sudha, METASTROKE, UK Young Lacunar DNA Study, NINDS Stroke Genetics Network, Neurology Working Group of the CHARGE Consortium, Hamilton-Bruce Monica Anne, Jimenez-Conde Jordi, Cole John W, Schmidt Reinhold, Słowik Agnieszka, Lemmens Robin, Lindgren Arne, Melander Olle, Grewal Raji P, Sacco Ralph L, Rundek Tatjana, Rexrode Kathryn, Arnett Donna K, Johnson Julie A, Benavente Oscar R, Wasssertheil-Smoller Sylvia, Lee Jin-Moo, Pulit Sara L, Wong Quenna, Rich Stephen S, de Bakker Paul I W, McArdle Patrick F, Woo Daniel, Anderson Christopher D, Xu Huichun, Heitsch Laura, Fornage Myriam, Jern Christina, Stefansson Kari, Thorsteinsdottir Unnur, Gretarsdottir Solveig, Lewis Cathryn M, Sharma Pankaj, Sudlow Cathie L M, Rothwell Peter M, Boncoraglio Giorgio B, Thijs Vincent, Levi Chris, Meschia James F, Rosand Jonathan, Kittner Steven J, Mitchell Braxton D, Dichgans Martin, Worrall Bradford B, Markus Hugh S, International Stroke Genetics Consortium
Аннотация
METHODS: We used a three-stage age-at-onset informed GWAS to identify novel genetic variants associated with stroke. On identifying a novel locus associated with SVS, we assessed its influence on other small vessel disease phenotypes, as well as on messenger RNA (mRNA) expression of nearby genes, and on DNA methylation of nearby CpG sites in whole blood and in the fetal brain.
RESULTS: We identified an association with SVS in 4,203 cases and 50,728 controls on chromosome 16q24.2 (odds ratio [OR; 95% confidence interval {CI}] = 1.16 [1.10-1.22]; p = 3.2 × 10-9 ). The lead single-nucleotide polymorphism (rs12445022) was also associated with cerebral white matter hyperintensities (OR [95% CI] = 1.10 [1.05-1.16]; p = 5.3 × 10-5 ; N = 3,670), but not intracerebral hemorrhage (OR [95% CI] = 0.97 [0.84-1.12]; p = 0.71; 1,545 cases, 1,481 controls). rs12445022 is associated with mRNA expression of ZCCHC14 in arterial tissues (p = 9.4 × 10-7 ) and DNA methylation at probe cg16596957 in whole blood (p = 5.3 × 10-6 ).
INTERPRETATION: 16q24.2 is associated with SVS. Associations of the locus with expression of ZCCHC14 and DNA methylation suggest the locus acts through changes to regulatory elements. Ann Neurol 2017;81:383-394.