Title

Multi-ethnic genome-wide association study for atrial fibrillation

UMMS Affiliation

Department of Medicine, Division of Cardiovascular Medicine

Publication Date

2018-9

Document Type

Article

Disciplines

Cardiology | Cardiovascular Diseases | Genetic Phenomena | Genetics and Genomics | Therapeutics

Abstract

Atrial fibrillation (AF) affects more than 33 million individuals worldwide(1) and has a complex heritability(2). We conducted the largest meta-analysis of genome-wide association studies (GWAS) for AF to date, consisting of more than half a million individuals, including 65,446 with AF. In total, we identified 97 loci significantly associated with AF, including 67 that were novel in a combined-ancestry analysis, and 3 that were novel in a European-specific analysis. We sought to identify AF-associated genes at the GWAS loci by performing RNA-sequencing and expression quantitative trait locus analyses in 101 left atrial samples, the most relevant tissue for AF. We also performed transcriptome-wide analyses that identified 57 AF-associated genes, 42 of which overlap with GWAS loci. The identified loci implicate genes enriched within cardiac developmental, electrophysiological, contractile and structural pathways. These results extend our understanding of the biological pathways underlying AF and may facilitate the development of therapeutics for AF.

Keywords

Atrial fibrillation, meta-analysis, genome-wide association studies, genes

DOI of Published Version

10.1038/s41588-018-0133-9

Source

Nat Genet. 2018 Sep;50(9):1225-1233. doi: 10.1038/s41588-018-0133-9. Epub 2018 Jun 11. Link to article on publisher's site

Journal/Book/Conference Title

Nature genetics

Comments

Full author list omitted for brevity. For the full list of authors, see article.

Related Resources

Link to Article in PubMed

PubMed ID

29892015

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