Abstract
Genome-wide association studies (GWAS) of quantitative electrocardiographic (ECG) traits in large consortia have identified more than 130 loci associated with QT interval, QRS duration, PR interval, and heart rate (RR interval). In the current study, we meta-analyzed genome-wide association results from 30,000 mostly Dutch samples on four ECG traits: PR interval, QRS duration, QT interval, and RR interval. SNP genotype data was imputed using the Genome of the Netherlands reference panel encompassing 19 million SNPs, including millions of rare SNPs (minor allele frequency < 5%). In addition to many known loci, we identified seven novel locus-trait associations: KCND3, NR3C1, and PLN for PR interval, KCNE1, SGIP1, and NFKB1 for QT interval, and ATP2A2 for QRS duration, of which six were successfully replicated. At these seven loci, we performed conditional analyses and annotated significant SNPs (in exons and regulatory regions), demonstrating involvement of cardiac-related pathways and regulation of nearby genes.
Original language | English |
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Pages (from-to) | 952-962 |
Number of pages | 11 |
Journal | European Journal of Human Genetics |
Volume | 27 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2019 |
Funding
Funding Folkert W. Asselbergs is supported by UCL Hospitals NIHR Biomedical Research Centre. CAPES Foundation, Ministry of Education of Brazil, Brasília, DF 70040-020, Brazil
Funders | Funder number |
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UCL Hospitals NIHR Biomedical Research Centre | |
National Institute of General Medical Sciences | U54GM115428 |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior |
Cohort Studies
- Netherlands Twin Register (NTR)