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Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization.


ABSTRACT: The QT interval, an electrocardiographic measure reflecting myocardial repolarization, is a heritable trait. QT prolongation is a risk factor for ventricular arrhythmias and sudden cardiac death (SCD) and could indicate the presence of the potentially lethal mendelian long-QT syndrome (LQTS). Using a genome-wide association and replication study in up to 100,000 individuals, we identified 35 common variant loci associated with QT interval that collectively explain ?8-10% of QT-interval variation and highlight the importance of calcium regulation in myocardial repolarization. Rare variant analysis of 6 new QT interval-associated loci in 298 unrelated probands with LQTS identified coding variants not found in controls but of uncertain causality and therefore requiring validation. Several newly identified loci encode proteins that physically interact with other recognized repolarization proteins. Our integration of common variant association, expression and orthogonal protein-protein interaction screens provides new insights into cardiac electrophysiology and identifies new candidate genes for ventricular arrhythmias, LQTS and SCD.

SUBMITTER: Arking DE 

PROVIDER: S-EPMC4124521 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature

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Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization.

Arking Dan E DE   Pulit Sara L SL   Crotti Lia L   van der Harst Pim P   Munroe Patricia B PB   Koopmann Tamara T TT   Sotoodehnia Nona N   Rossin Elizabeth J EJ   Morley Michael M   Wang Xinchen X   Johnson Andrew D AD   Lundby Alicia A   Gudbjartsson Daníel F DF   Noseworthy Peter A PA   Eijgelsheim Mark M   Bradford Yuki Y   Tarasov Kirill V KV   Dörr Marcus M   Müller-Nurasyid Martina M   Lahtinen Annukka M AM   Nolte Ilja M IM   Smith Albert Vernon AV   Bis Joshua C JC   Isaacs Aaron A   Newhouse Stephen J SJ   Evans Daniel S DS   Post Wendy S WS   Waggott Daryl D   Lyytikäinen Leo-Pekka LP   Hicks Andrew A AA   Eisele Lewin L   Ellinghaus David D   Hayward Caroline C   Navarro Pau P   Ulivi Sheila S   Tanaka Toshiko T   Tester David J DJ   Chatel Stéphanie S   Gustafsson Stefan S   Kumari Meena M   Morris Richard W RW   Naluai Åsa T ÅT   Padmanabhan Sandosh S   Kluttig Alexander A   Strohmer Bernhard B   Panayiotou Andrie G AG   Torres Maria M   Knoflach Michael M   Hubacek Jaroslav A JA   Slowikowski Kamil K   Raychaudhuri Soumya S   Kumar Runjun D RD   Harris Tamara B TB   Launer Lenore J LJ   Shuldiner Alan R AR   Alonso Alvaro A   Bader Joel S JS   Ehret Georg G   Huang Hailiang H   Kao W H Linda WH   Strait James B JB   Macfarlane Peter W PW   Brown Morris M   Caulfield Mark J MJ   Samani Nilesh J NJ   Kronenberg Florian F   Willeit Johann J   Smith J Gustav JG   Greiser Karin H KH   Meyer Zu Schwabedissen Henriette H   Werdan Karl K   Carella Massimo M   Zelante Leopoldo L   Heckbert Susan R SR   Psaty Bruce M BM   Rotter Jerome I JI   Kolcic Ivana I   Polašek Ozren O   Wright Alan F AF   Griffin Maura M   Daly Mark J MJ   Arnar David O DO   Hólm Hilma H   Thorsteinsdottir Unnur U   Denny Joshua C JC   Roden Dan M DM   Zuvich Rebecca L RL   Emilsson Valur V   Plump Andrew S AS   Larson Martin G MG   O'Donnell Christopher J CJ   Yin Xiaoyan X   Bobbo Marco M   D'Adamo Adamo P AP   Iorio Annamaria A   Sinagra Gianfranco G   Carracedo Angel A   Cummings Steven R SR   Nalls Michael A MA   Jula Antti A   Kontula Kimmo K KK   Marjamaa Annukka A   Oikarinen Lasse L   Perola Markus M   Porthan Kimmo K   Erbel Raimund R   Hoffmann Per P   Jöckel Karl-Heinz KH   Kälsch Hagen H   Nöthen Markus M MM   den Hoed Marcel M   Loos Ruth J F RJ   Thelle Dag S DS   Gieger Christian C   Meitinger Thomas T   Perz Siegfried S   Peters Annette A   Prucha Hanna H   Sinner Moritz F MF   Waldenberger Melanie M   de Boer Rudolf A RA   Franke Lude L   van der Vleuten Pieter A PA   Beckmann Britt Maria BM   Martens Eimo E   Bardai Abdennasser A   Hofman Nynke N   Wilde Arthur A M AA   Behr Elijah R ER   Dalageorgou Chrysoula C   Giudicessi John R JR   Medeiros-Domingo Argelia A   Barc Julien J   Kyndt Florence F   Probst Vincent V   Ghidoni Alice A   Insolia Roberto R   Hamilton Robert M RM   Scherer Stephen W SW   Brandimarto Jeffrey J   Margulies Kenneth K   Moravec Christine E CE   del Greco M Fabiola F   Fuchsberger Christian C   O'Connell Jeffrey R JR   Lee Wai K WK   Watt Graham C M GC   Campbell Harry H   Wild Sarah H SH   El Mokhtari Nour E NE   Frey Norbert N   Asselbergs Folkert W FW   Mateo Leach Irene I   Navis Gerjan G   van den Berg Maarten P MP   van Veldhuisen Dirk J DJ   Kellis Manolis M   Krijthe Bouwe P BP   Franco Oscar H OH   Hofman Albert A   Kors Jan A JA   Uitterlinden André G AG   Witteman Jacqueline C M JC   Kedenko Lyudmyla L   Lamina Claudia C   Oostra Ben A BA   Abecasis Gonçalo R GR   Lakatta Edward G EG   Mulas Antonella A   Orrú Marco M   Schlessinger David D   Uda Manuela M   Markus Marcello R P MR   Völker Uwe U   Snieder Harold H   Spector Timothy D TD   Ärnlöv Johan J   Lind Lars L   Sundström Johan J   Syvänen Ann-Christine AC   Kivimaki Mika M   Kähönen Mika M   Mononen Nina N   Raitakari Olli T OT   Viikari Jorma S JS   Adamkova Vera V   Kiechl Stefan S   Brion Maria M   Nicolaides Andrew N AN   Paulweber Bernhard B   Haerting Johannes J   Dominiczak Anna F AF   Nyberg Fredrik F   Whincup Peter H PH   Hingorani Aroon D AD   Schott Jean-Jacques JJ   Bezzina Connie R CR   Ingelsson Erik E   Ferrucci Luigi L   Gasparini Paolo P   Wilson James F JF   Rudan Igor I   Franke Andre A   Mühleisen Thomas W TW   Pramstaller Peter P PP   Lehtimäki Terho J TJ   Paterson Andrew D AD   Parsa Afshin A   Liu Yongmei Y   van Duijn Cornelia M CM   Siscovick David S DS   Gudnason Vilmundur V   Jamshidi Yalda Y   Salomaa Veikko V   Felix Stephan B SB   Sanna Serena S   Ritchie Marylyn D MD   Stricker Bruno H BH   Stefansson Kari K   Boyer Laurie A LA   Cappola Thomas P TP   Olsen Jesper V JV   Lage Kasper K   Schwartz Peter J PJ   Kääb Stefan S   Chakravarti Aravinda A   Ackerman Michael J MJ   Pfeufer Arne A   de Bakker Paul I W PI   Newton-Cheh Christopher C  

Nature genetics 20140622 8


The QT interval, an electrocardiographic measure reflecting myocardial repolarization, is a heritable trait. QT prolongation is a risk factor for ventricular arrhythmias and sudden cardiac death (SCD) and could indicate the presence of the potentially lethal mendelian long-QT syndrome (LQTS). Using a genome-wide association and replication study in up to 100,000 individuals, we identified 35 common variant loci associated with QT interval that collectively explain ∼8-10% of QT-interval variation  ...[more]

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2014-10-10 | GSE53567 | GEO