Contribution of Common Genetic Variants to Risk of Early-Onset Ischemic Stroke

Thomas Jaworek, Huichun Xu, Brady Gaynor, John Cole, Kristiina Rannikmae, Tara M Stanne, Liisa Tomppo, Vida Abedi, Phillippe Amouyel, Nicole Armstrong, John Attia, Steven Bell, Oscar R. Benavente, Giorgio B Boncoraglio, Adam S Butterworth, Jara Carcel-Marquez, Zhengming Chen, Michael Chong, Carlos Cruchaga, Mary CushmanJohn Danesh, Stephanie Debette, David Duggan, John Peter Durda, Gunnar Engstrom, Chrstine Enzinger, Jessica D Faul, Natalie Fecteau, Israel Fernandez-Cadenas, Christian Gieger, Anne-Katrin Giese, Raji P Grewal, Ulrika Grittner, Aki S. Havulinna, Laura Heitsch, Marc Hochberg, Elizabeth G Holliday, Jie Zhu, Andreea Llinca, Marguerite R Irvin, Rebecca D. Jackson, Mina Jacob, Raquel Rabionet-Janssen, Jordi Jimenez-Conde, Julie A Johnson, Yoichiro Kamatani, Sharon L R Kardia, Masaru Koido, Michiaki Kubo, Leslie A. Lange, Jin-Moo Lee, Robin Lemmens, Christopher Levi, Jiang Li, Kuang Lin, Haley Lopez, Jane M Maguire, Sothear Luke, Patrick F McArdle, Caitrin W McDonough, Jessica Meschia, Tiina M Metso, Martina Müller-Nurasyid, Timothy O'Connor, Leema Reddy Peddareddygari, Martin O'Donnell, Joanna Pera, James Perry, Annette Peters, Jukka Putaala, Debashree Ray, Kathryn M Rexrode, Marta Ribases, Jonathan Rosand, Peter M. Rothwell, Tatjana Rundek, Kathleen Ryan, Ralph L. Sacco, Veikko Salomaa, Cristina Sánchez-Mora, Reinhold Schmidt, Pankaj Sharma, Agnieszka Slowik, Jennifer Smith, Nicholas L. Smith, Sylvia Wassertheil-Smoller, Martin Söderholm, Colin Stine, Daniel Strbian, Cathie L M Sudlow, Turgut Tatlisumak, Chikashi Terao, Vincent Thijs, Nina Torres-Aguila, David-Alexandre Tregouet, Anil M Tuladhar, Jan H Veldink, Robin G Walters, David R Weir, Daniel Woo, Bradford B Worrall, Charles Hong, Owen A. Ross, Ramin Zand, Frank-Erik de Leeuw, Arne Lindgren, Guillaume Pare, Christopher D. Anderson, Hugh S. Markus, Christina Jern, Rainer Malik, Martin Dichgans, Braxton D. Mitchell, Steven J Kittner

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND AND OBJECTIVES: Current genome-wide association studies of ischemic stroke have focused primarily on late onset disease. As a complement to these studies, we sought to identifythe contribution of common genetic variants to risk of early onset ischemic stroke.

METHODS: We performed a meta-analysis of genome-wide association studies of early onset stroke (EOS), ages 18-59, using individual level data or summary statistics in 16,730 cases and 599,237 non-stroke controls obtained across 48 different studies. We further compared effect sizes at associated loci between EOS and late onset stroke (LOS) and compared polygenic risk scores for venous thromboembolism between EOS and LOS.

RESULTS: We observed genome-wide significant associations of EOS with two variants in ABO, a known stroke locus. These variants tag blood subgroups O1 and A1, and the effect sizes of both variants were significantly larger in EOS compared to LOS. The odds ratio (OR) for rs529565, tagging O1, 0.88 (95% CI: 0.85-0.91) in EOS vs 0.96 (95% CI: 0.92-1.00) in LOS, and the OR for rs635634, tagging A1, was 1.16 (1.11-1.21) for EOS vs 1.05 (0.99-1.11) in LOS; p-values for interaction = 0.001 and 0.005, respectively. Using polygenic risk scores, we observed that greater genetic risk for venous thromboembolism, another prothrombotic condition, was more strongly associated with EOS compared to LOS (p=0.008).

DISCUSSION: The ABO locus, genetically predicted blood group A, and higher genetic propensity for venous thrombosis are more strongly associated with EOS than with LOS, supporting a stronger role of prothrombotic factors in EOS.

Original languageEnglish
Pages (from-to)e1738-e1754
JournalNeurology
Volume99
Issue number16
Early online date31 Aug 2022
DOIs
Publication statusPublished - 18 Oct 2022

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