@article {1087, title = {Common variants at ten loci influence QT interval duration in the QTGEN Study.}, journal = {Nat Genet}, volume = {41}, year = {2009}, month = {2009 Apr}, pages = {399-406}, abstract = {

QT interval duration, reflecting myocardial repolarization on the electrocardiogram, is a heritable risk factor for sudden cardiac death and drug-induced arrhythmias. We conducted a meta-analysis of three genome-wide association studies in 13,685 individuals of European ancestry from the Framingham Heart Study, the Rotterdam Study and the Cardiovascular Health Study, as part of the QTGEN consortium. We observed associations at P < 5 x 10(-8) with variants in NOS1AP, KCNQ1, KCNE1, KCNH2 and SCN5A, known to be involved in myocardial repolarization and mendelian long-QT syndromes. Associations were found at five newly identified loci, including 16q21 near NDRG4 and GINS3, 6q22 near PLN, 1p36 near RNF207, 16p13 near LITAF and 17q12 near LIG3 and RFFL. Collectively, the 14 independent variants at these 10 loci explain 5.4-6.5\% of the variation in QT interval. These results, together with an accompanying paper, offer insights into myocardial repolarization and suggest candidate genes that could predispose to sudden cardiac death and drug-induced arrhythmias.

}, keywords = {Adaptor Proteins, Signal Transducing, Adult, Aged, Arrhythmias, Cardiac, Chromosome Mapping, Death, Sudden, Cardiac, Electroencephalography, ERG1 Potassium Channel, Ether-A-Go-Go Potassium Channels, European Continental Ancestry Group, Genetic Predisposition to Disease, Genetic Variation, Genome, Human, Humans, KCNQ1 Potassium Channel, Meta-Analysis as Topic, Muscle Proteins, NAV1.5 Voltage-Gated Sodium Channel, Polymorphism, Single Nucleotide, Potassium Channels, Voltage-Gated, Risk Factors, Sodium Channels}, issn = {1546-1718}, doi = {10.1038/ng.364}, author = {Newton-Cheh, Christopher and Eijgelsheim, Mark and Rice, Kenneth M and de Bakker, Paul I W and Yin, Xiaoyan and Estrada, Karol and Bis, Joshua C and Marciante, Kristin and Rivadeneira, Fernando and Noseworthy, Peter A and Sotoodehnia, Nona and Smith, Nicholas L and Rotter, Jerome I and Kors, Jan A and Witteman, Jacqueline C M and Hofman, Albert and Heckbert, Susan R and O{\textquoteright}Donnell, Christopher J and Uitterlinden, Andr{\'e} G and Psaty, Bruce M and Lumley, Thomas and Larson, Martin G and Stricker, Bruno H Ch} } @article {1244, title = {Common variants in 22 loci are associated with QRS duration and cardiac ventricular conduction.}, journal = {Nat Genet}, volume = {42}, year = {2010}, month = {2010 Dec}, pages = {1068-76}, abstract = {

The QRS interval, from the beginning of the Q wave to the end of the S wave on an electrocardiogram, reflects ventricular depolarization and conduction time and is a risk factor for mortality, sudden death and heart failure. We performed a genome-wide association meta-analysis in 40,407 individuals of European descent from 14 studies, with further genotyping in 7,170 additional Europeans, and we identified 22 loci associated with QRS duration (P < 5 {\texttimes} 10(-8)). These loci map in or near genes in pathways with established roles in ventricular conduction such as sodium channels, transcription factors and calcium-handling proteins, but also point to previously unidentified biologic processes, such as kinase inhibitors and genes related to tumorigenesis. We demonstrate that SCN10A, a candidate gene at the most significantly associated locus in this study, is expressed in the mouse ventricular conduction system, and treatment with a selective SCN10A blocker prolongs QRS duration. These findings extend our current knowledge of ventricular depolarization and conduction.

}, keywords = {Animals, Animals, Newborn, Chromosomes, Human, Computational Biology, Electrocardiography, Genetic Loci, Genome-Wide Association Study, Heart Conduction System, Humans, Mice, Mice, Transgenic, Models, Animal, Myocytes, Cardiac, NAV1.8 Voltage-Gated Sodium Channel, Polymorphism, Single Nucleotide, Sodium Channels}, issn = {1546-1718}, doi = {10.1038/ng.716}, author = {Sotoodehnia, Nona and Isaacs, Aaron and de Bakker, Paul I W and D{\"o}rr, Marcus and Newton-Cheh, Christopher and Nolte, Ilja M and van der Harst, Pim and M{\"u}ller, Martina and Eijgelsheim, Mark and Alonso, Alvaro and Hicks, Andrew A and Padmanabhan, Sandosh and Hayward, Caroline and Smith, Albert Vernon and Polasek, Ozren and Giovannone, Steven and Fu, Jingyuan and Magnani, Jared W and Marciante, Kristin D and Pfeufer, Arne and Gharib, Sina A and Teumer, Alexander and Li, Man and Bis, Joshua C and Rivadeneira, Fernando and Aspelund, Thor and K{\"o}ttgen, Anna and Johnson, Toby and Rice, Kenneth and Sie, Mark P S and Wang, Ying A and Klopp, Norman and Fuchsberger, Christian and Wild, Sarah H and Mateo Leach, Irene and Estrada, Karol and V{\"o}lker, Uwe and Wright, Alan F and Asselbergs, Folkert W and Qu, Jiaxiang and Chakravarti, Aravinda and Sinner, Moritz F and Kors, Jan A and Petersmann, Astrid and Harris, Tamara B and Soliman, Elsayed Z and Munroe, Patricia B and Psaty, Bruce M and Oostra, Ben A and Cupples, L Adrienne and Perz, Siegfried and de Boer, Rudolf A and Uitterlinden, Andr{\'e} G and V{\"o}lzke, Henry and Spector, Timothy D and Liu, Fang-Yu and Boerwinkle, Eric and Dominiczak, Anna F and Rotter, Jerome I and van Herpen, G{\'e} and Levy, Daniel and Wichmann, H-Erich and van Gilst, Wiek H and Witteman, Jacqueline C M and Kroemer, Heyo K and Kao, W H Linda and Heckbert, Susan R and Meitinger, Thomas and Hofman, Albert and Campbell, Harry and Folsom, Aaron R and van Veldhuisen, Dirk J and Schwienbacher, Christine and O{\textquoteright}Donnell, Christopher J and Volpato, Claudia Beu and Caulfield, Mark J and Connell, John M and Launer, Lenore and Lu, Xiaowen and Franke, Lude and Fehrmann, Rudolf S N and te Meerman, Gerard and Groen, Harry J M and Weersma, Rinse K and van den Berg, Leonard H and Wijmenga, Cisca and Ophoff, Roel A and Navis, Gerjan and Rudan, Igor and Snieder, Harold and Wilson, James F and Pramstaller, Peter P and Siscovick, David S and Wang, Thomas J and Gudnason, Vilmundur and van Duijn, Cornelia M and Felix, Stephan B and Fishman, Glenn I and Jamshidi, Yalda and Stricker, Bruno H Ch and Samani, Nilesh J and K{\"a}{\"a}b, Stefan and Arking, Dan E} } @article {6325, title = {Common variation in fatty acid metabolic genes and risk of incident sudden cardiac arrest.}, journal = {Heart Rhythm}, volume = {11}, year = {2014}, month = {2014 Mar}, pages = {471-7}, abstract = {

BACKGROUND: There is limited information on genetic factors associated with sudden cardiac arrest (SCA).

OBJECTIVE: To assess the association of common variation in genes in fatty acid pathways with SCA risk.

METHODS: We selected 85 candidate genes and 1155 single nucleotide polymorphisms (SNPs) tagging common variation in each gene. We investigated the SNP associations with SCA in a population-based case-control study. Cases (n = 2160) were from a repository of SCA in the greater Seattle area. Controls (n = 2615), frequency-matched on age and sex, were from the same area. We used linear logistic regression to examine SNP associations with SCA. We performed permutation-based p-min tests to account for multiple comparisons within each gene. The SNP associations with a corrected P value of <.05 were then examined in a meta-analysis of these SNP associations in 9 replication studies totaling 2129 SCA cases and 23,833 noncases.

RESULTS: Eight SNPs in or near 8 genes were associated with SCA risk in the discovery study, one of which was nominally significant in the replication phase (rs7737692, minor allele frequency 36\%, near the LPCAT1 gene). For each copy of the minor allele, rs7737692 was associated with 13\% lower SCA risk (95\% confidence interval -21\% to -5\%) in the discovery phase and 9\% lower SCA risk (95\% confidence interval -16\% to -1\%) in the replication phase.

CONCLUSIONS: While none of the associations reached significance with Bonferroni correction, a common genetic variant near LPCAT1, a gene involved in the remodeling of phospholipids, was nominally associated with incident SCA risk. Further study is needed to validate this observation.

}, keywords = {1-Acylglycerophosphocholine O-Acyltransferase, Aged, Algorithms, Alleles, Case-Control Studies, Death, Sudden, Cardiac, Fatty Acids, Female, Genetic Predisposition to Disease, Genetic Variation, Genotype, Humans, Male, Polymorphism, Single Nucleotide, Risk Factors}, issn = {1556-3871}, doi = {10.1016/j.hrthm.2014.01.008}, author = {Lemaitre, Rozenn N and Johnson, Catherine O and Hesselson, Stephanie and Sotoodehnia, Nona and Sotoodhenia, Nona and McKnight, Barbara and Sitlani, Colleen M and Rea, Thomas D and King, Irena B and Kwok, Pui-Yan and Mak, Angel and Li, Guo and Brody, Jennifer and Larson, Eric and Mozaffarian, Dariush and Psaty, Bruce M and Huertas-Vazquez, Adriana and Tardif, Jean-Claude and Albert, Christine M and Lyytik{\"a}inen, Leo-Pekka and Arking, Dan E and K{\"a}{\"a}b, Stefan and Huikuri, Heikki V and Krijthe, Bouwe P and Eijgelsheim, Mark and Wang, Ying A and Reinier, Kyndaron and Lehtim{\"a}ki, Terho and Pulit, Sara L and Brugada, Ramon and M{\"u}ller-Nurasyid, Martina and Newton-Cheh, Chris H and Karhunen, Pekka J and Stricker, Bruno H and Goyette, Philippe and Rotter, Jerome I and Chugh, Sumeet S and Chakravarti, Aravinda and Jouven, Xavier and Siscovick, David S} } @article {7801, title = {Common and Rare Coding Genetic Variation Underlying the Electrocardiographic PR Interval.}, journal = {Circ Genom Precis Med}, volume = {11}, year = {2018}, month = {2018 May}, pages = {e002037}, abstract = {

BACKGROUND: Electrical conduction from the cardiac sinoatrial node to the ventricles is critical for normal heart function. Genome-wide association studies have identified more than a dozen common genetic loci that are associated with PR interval. However, it is unclear whether rare and low-frequency variants also contribute to PR interval heritability.

METHODS: We performed large-scale meta-analyses of the PR interval that included 83 367 participants of European ancestry and 9436 of African ancestry. We examined both common and rare variants associated with the PR interval.

RESULTS: We identified 31 genetic loci that were significantly associated with PR interval after Bonferroni correction (<1.2{\texttimes}10), including 11 novel loci that have not been reported previously. Many of these loci are involved in heart morphogenesis. In gene-based analysis, we found that multiple rare variants at (=5.9{\texttimes}10) and (=1.1{\texttimes}10) were associated with PR interval. locus also was implicated in the common variant analysis, whereas was a novel locus.

CONCLUSIONS: We identified common variants at 11 novel loci and rare variants within 2 gene regions that were significantly associated with PR interval. Our findings provide novel insights to the current understanding of atrioventricular conduction, which is critical for cardiac activity and an important determinant of health.

}, issn = {2574-8300}, doi = {10.1161/CIRCGEN.117.002037}, author = {Lin, Honghuang and van Setten, Jessica and Smith, Albert V and Bihlmeyer, Nathan A and Warren, Helen R and Brody, Jennifer A and Radmanesh, Farid and Hall, Leanne and Grarup, Niels and M{\"u}ller-Nurasyid, Martina and Boutin, Thibaud and Verweij, Niek and Lin, Henry J and Li-Gao, Ruifang and van den Berg, Marten E and Marten, Jonathan and Weiss, Stefan and Prins, Bram P and Haessler, Jeffrey and Lyytik{\"a}inen, Leo-Pekka and Mei, Hao and Harris, Tamara B and Launer, Lenore J and Li, Man and Alonso, Alvaro and Soliman, Elsayed Z and Connell, John M and Huang, Paul L and Weng, Lu-Chen and Jameson, Heather S and Hucker, William and Hanley, Alan and Tucker, Nathan R and Chen, Yii-Der Ida and Bis, Joshua C and Rice, Kenneth M and Sitlani, Colleen M and Kors, Jan A and Xie, Zhijun and Wen, Chengping and Magnani, Jared W and Nelson, Christopher P and Kanters, J{\o}rgen K and Sinner, Moritz F and Strauch, Konstantin and Peters, Annette and Waldenberger, Melanie and Meitinger, Thomas and Bork-Jensen, Jette and Pedersen, Oluf and Linneberg, Allan and Rudan, Igor and de Boer, Rudolf A and van der Meer, Peter and Yao, Jie and Guo, Xiuqing and Taylor, Kent D and Sotoodehnia, Nona and Rotter, Jerome I and Mook-Kanamori, Dennis O and Trompet, Stella and Rivadeneira, Fernando and Uitterlinden, Andre and Eijgelsheim, Mark and Padmanabhan, Sandosh and Smith, Blair H and V{\"o}lzke, Henry and Felix, Stephan B and Homuth, Georg and V{\"o}lker, Uwe and Mangino, Massimo and Spector, Timothy D and Bots, Michiel L and Perez, Marco and K{\"a}h{\"o}nen, Mika and Raitakari, Olli T and Gudnason, Vilmundur and Arking, Dan E and Munroe, Patricia B and Psaty, Bruce M and van Duijn, Cornelia M and Benjamin, Emelia J and Rosand, Jonathan and Samani, Nilesh J and Hansen, Torben and K{\"a}{\"a}b, Stefan and Polasek, Ozren and van der Harst, Pim and Heckbert, Susan R and Jukema, J Wouter and Stricker, Bruno H and Hayward, Caroline and D{\"o}rr, Marcus and Jamshidi, Yalda and Asselbergs, Folkert W and Kooperberg, Charles and Lehtim{\"a}ki, Terho and Wilson, James G and Ellinor, Patrick T and Lubitz, Steven A and Isaacs, Aaron} } @article {7778, title = {A comprehensive evaluation of the genetic architecture of sudden cardiac arrest.}, journal = {Eur Heart J}, year = {2018}, month = {2018 Aug 28}, abstract = {

Aims: Sudden cardiac arrest (SCA) accounts for 10\% of adult mortality in Western populations. We aim to identify potential loci associated with SCA and to identify risk factors causally associated with SCA.

Methods and results: We carried out a large genome-wide association study (GWAS) for SCA (n = 3939 cases, 25~989 non-cases) to examine common variation genome-wide and in candidate arrhythmia genes. We also exploited Mendelian randomization (MR) methods using cross-trait multi-variant genetic risk score associations (GRSA) to assess causal relationships of 18 risk factors with SCA. No variants were associated with SCA at genome-wide significance, nor were common variants in candidate arrhythmia genes associated with SCA at nominal significance. Using cross-trait GRSA, we established genetic correlation between SCA and (i) coronary artery disease (CAD) and traditional CAD risk factors (blood pressure, lipids, and diabetes), (ii) height and BMI, and (iii) electrical instability traits (QT and atrial fibrillation), suggesting aetiologic roles for these traits in SCA risk.

Conclusions: Our findings show that a comprehensive approach to the genetic architecture of SCA can shed light on the determinants of a complex life-threatening condition with multiple influencing factors in the general population. The results of this genetic analysis, both positive and negative findings, have implications for evaluating the genetic architecture of patients with a family history of SCA, and for efforts to prevent SCA in high-risk populations and the general community.

}, issn = {1522-9645}, doi = {10.1093/eurheartj/ehy474}, author = {Ashar, Foram N and Mitchell, Rebecca N and Albert, Christine M and Newton-Cheh, Christopher and Brody, Jennifer A and M{\"u}ller-Nurasyid, Martina and Moes, Anna and Meitinger, Thomas and Mak, Angel and Huikuri, Heikki and Junttila, M Juhani and Goyette, Philippe and Pulit, Sara L and Pazoki, Raha and Tanck, Michael W and Blom, Marieke T and Zhao, XiaoQing and Havulinna, Aki S and Jabbari, Reza and Glinge, Charlotte and Tragante, Vinicius and Escher, Stefan A and Chakravarti, Aravinda and Ehret, Georg and Coresh, Josef and Li, Man and Prineas, Ronald J and Franco, Oscar H and Kwok, Pui-Yan and Lumley, Thomas and Dumas, Florence and McKnight, Barbara and Rotter, Jerome I and Lemaitre, Rozenn N and Heckbert, Susan R and O{\textquoteright}Donnell, Christopher J and Hwang, Shih-Jen and Tardif, Jean-Claude and VanDenburgh, Martin and Uitterlinden, Andr{\'e} G and Hofman, Albert and Stricker, Bruno H C and de Bakker, Paul I W and Franks, Paul W and Jansson, Jan-H{\r a}kan and Asselbergs, Folkert W and Halushka, Marc K and Maleszewski, Joseph J and Tfelt-Hansen, Jacob and Engstr{\o}m, Thomas and Salomaa, Veikko and Virmani, Renu and Kolodgie, Frank and Wilde, Arthur A M and Tan, Hanno L and Bezzina, Connie R and Eijgelsheim, Mark and Rioux, John D and Jouven, Xavier and K{\"a}{\"a}b, Stefan and Psaty, Bruce M and Siscovick, David S and Arking, Dan E and Sotoodehnia, Nona} }