Abstract
Atrial fibrillation (AF) is the most common heart rhythm abnormality and is a leading cause of heart failure and stroke. This large-scale meta-analysis of genome-wide association studies increased the power to detect single-nucleotide variant associations and found more than 350 AF-associated genetic loci. We identified candidate genes related to muscle contractility, cardiac muscle development and cell-cell communication at 139 loci. Furthermore, we assayed chromatin accessibility using assay for transposase-accessible chromatin with sequencing and histone H3 lysine 4 trimethylation in stem cell-derived atrial cardiomyocytes. We observed a marked increase in chromatin accessibility for our sentinel variants and prioritized genes in atrial cardiomyocytes. Finally, a polygenic risk score (PRS) based on our updated effect estimates improved AF risk prediction compared to the CHARGE-AF clinical risk score and a previously reported PRS for AF. The doubling of known risk loci will facilitate a greater understanding of the pathways underlying AF.
Original language | English |
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Article number | 11303 |
Pages (from-to) | 539-547 |
Number of pages | 9 |
Journal | Nature genetics |
Volume | 57 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2025 |
Keywords
- Atrial Fibrillation/genetics
- Chromatin/genetics
- Female
- Genetic Predisposition to Disease
- Genome-Wide Association Study
- Humans
- Male
- Multifactorial Inheritance/genetics
- Myocytes, Cardiac/metabolism
- Polymorphism, Single Nucleotide
- Risk Factors