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Multi-ancestry GWAS of the electrocardiographic PR interval identifies 210 loci underlying cardiac conduction

By Ioanna Ntalla, Lu-Chen Weng, James H. Cartwright, Amelia Hall, Gardar Sveinbjornsson, Nathan R Tucker, Seung Hoan Choi, Mark D. Chaffin, Carolina Roselli, Michael R Barnes, Borbala Mifsud, Helen R Warren, Caroline Hayward, Jonathan Marten, James J. Cranley, Maria Pina Concas, Paolo Gasparini, Thibaud S. Boutin, Ivana Kolcic, Ozren Polasek, Igor Rudan, Nathalia M Araujo, Maria Fernanda Lima-Costa, Antonio Luiz P. Ribeiro, Renan P. Souza, Eduardo Tarazona-Santos, Vilmantas Giedraitis, Erik Ingelsson, Anubha Mahajan, Andrew P Morris, Greco M Fabiola Del, Luisa Foco, Martin Gögele, Andrew A. Hicks, James P Cook, Lars Lind, Cecilia M Lindgren, Johan Sundstrom, Christopher P Nelson, Muhammad B. Riaz, Nilesh J Samani, Gianfranco Sinagra, Sheila Ulivi, Mika Kähönen, Pashupati P. Mishra, Nina Mononen, Kjell Nikus, Mark J. Caulfield, Anna Dominiczak, Sandosh Padmanabhan, May E Montasser, Jeff R. O’Connell, Kathleen Ryan, Alan R Shuldiner, Stefanie Aeschbacher, David Conen, Lorenz Risch, Sébastien Thériault, Nina Hutri-Kahonen, Terho Lehtimäki, Leo-Pekka Lyytikainen, Olli Raitakari, Catriona L. K. Barnes, Harry Campbell, Peter Joshi, James F Wilson, Aaron Isaacs, Jan A. Kors, Cornelia Van Duijn, Paul L. Huang, Vilmundur Gudnason, Tamara B. Harris, Lenore J Launer, Albert V Smith, Erwin P. Bottinger, Ruth JF Loos, Girish N. Nadkarni, Michael H Preuss, Adolfo Correa, Hao Mei, James Wilson, Thomas Meitinger, Martina Muller-Nuraysid, Annette Peters, Melanie Waldenberger, Massimo Mangino, Timothy D. Spector, Michiel Rienstra, Yordi J. van de Vegte, Pim van der Harst, Niek Verweij, Stefan Kääb, Katharina Schramm, Moritz F. Sinner, Konstantin Strauch, Michael J. Cutler, Diane Fatkin, Barry London, Morten Olesen, Dan M Roden, M Benjamin Shoemaker, J. Gustav Smith, Mary L Biggs, Joshua C Bis, Jennifer A Brody, Bruce M Psaty, Ken Rice, Nona Sotoodehnia, Alessandro De Grandi, Christian Fuchsberger, Cristian Pattaro, Peter P. Pramstaller, Ian Ford, J Wouter Jukema, Peter W. Macfarlane, Stella Trompet, Marcus Dörr, Stephan B. Felix, Uwe Völker, Stefan Weiss, Aki S Havulinna, Antti Jula, Katri Sääksjärvi, Veikko Salomaa, Xiuqing Guo, Susan R Heckbert, Henry J Lin, Jerome I Rotter, Kent D Taylor, Jie Yao, Renée de Mutsert, Arie C. Maan, Dennis O. Mook-Kanamori, Raymond Noordam, Francesco Cucca, Jun Ding, Edward G. Lakatta, Yong Qian, Kirill V. Tarasov, Daniel Levy, Honghuang Lin, Christopher H. Newton-Cheh, Kathryn L. Lunetta, Alison D Murray, David J Porteous, Blair H Smith, Bruno H. Stricker, André Uitterlinden, Marten E van den Berg, Jeffrey Haessler, Rebecca D Jackson, Charles Kooperberg, Ulrike Peters, Alexander P Reiner, Eric A Whitsel, Alvaro Alonso, Dan Arking, Eric Boerwinkle, Georg B. Ehret, Elsayed Z Soliman, Christy L Avery, Stephanie M. Gogarten, Kathleen F Kerr, Cathy C. Laurie, Amanda A Seyerle, Adrienne Stilp, Solmaz Assa, M. Abdullah Said, Yldau van der Ende, Pier D Lambiase, Michele Orini, Julia Ramirez, Stefan Van Duijvenboden, David O Arnar, Daniel F. Gudbjartsson, Hilma Holm, Patrick Sulem, Gudmar Thorleifsson, Rosa B Thorolfsdottir, Unnur Thorsteinsdottir, Emelia J. Benjamin, Andrew Tinker, Kari Stefansson, Patrick T Ellinor, Yalda Jamshidi, Steven A. Lubitz, Patricia B. Munroe

Posted 24 Jul 2019
bioRxiv DOI: 10.1101/712398

The electrocardiographic PR interval reflects atrioventricular conduction, and is associated with conduction abnormalities, pacemaker implantation, atrial fibrillation (AF), and cardiovascular mortality. We performed multi-ancestry (N=293,051) and European only (N=271,570) genome-wide association (GWAS) meta-analyses for the PR interval, discovering 210 loci of which 149 are novel. Variants at all loci nearly doubled the percentage of heritability explained, from 33.5% to 62.6%. We observed enrichment for genes involved in cardiac muscle development/contraction and the cytoskeleton highlighting key regulation processes for atrioventricular conduction. Additionally, 19 novel loci harbour genes underlying inherited monogenic heart diseases suggesting the role of these genes in cardiovascular pathology in the general population. We showed that polygenic predisposition to PR interval duration is an endophenotype for cardiovascular disease risk, including distal conduction disease, AF, atrioventricular pre-excitation, non-ischemic cardiomyopathy, and coronary heart disease. These findings advance our understanding of the polygenic basis of cardiac conduction, and the genetic relationship between PR interval duration and cardiovascular disease.

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