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Olle Melander

Principal investigator

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Multi-ethnic genome-wide association study for atrial fibrillation

Author

  • Carolina Roselli
  • Mark D. Chaffin
  • Lu Chen Weng
  • Stefanie Aeschbacher
  • Gustav Ahlberg
  • Christine M. Albert
  • Peter Almgren
  • Alvaro Alonso
  • Christopher D. Anderson
  • Krishna G. Aragam
  • Dan E. Arking
  • John Barnard
  • Traci M. Bartz
  • Emelia J. Benjamin
  • Nathan A. Bihlmeyer
  • Joshua C. Bis
  • Heather L. Bloom
  • Eric Boerwinkle
  • Erwin B. Bottinger
  • Jennifer A. Brody
  • Hugh Calkins
  • Archie Campbell
  • Thomas P. Cappola
  • John Carlquist
  • Daniel I. Chasman
  • Lin Y. Chen
  • Yii Der Ida Chen
  • Eue Keun Choi
  • Seung Hoan Choi
  • Ingrid E. Christophersen
  • Mina K. Chung
  • John W. Cole
  • David Conen
  • James Cook
  • Harry J. Crijns
  • Michael J. Cutler
  • Scott M. Damrauer
  • Brian R. Daniels
  • Dawood Darbar
  • Graciela Delgado
  • Joshua C. Denny
  • Martin Dichgans
  • Marcus Dörr
  • Elton A. Dudink
  • Samuel C. Dudley
  • Stefan Gustafsson
  • Cecilia M. Lindgren
  • Olle Melander
  • Peter Nilsson
  • Marju Orho-Melander
  • Steven A Lubitz
  • Kathryn L Lunetta
  • Patrick T Ellinor

Summary, in English

Atrial fibrillation (AF) affects more than 33 million individuals worldwide1 and has a complex heritability2. 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.

Department/s

  • Department of Clinical Sciences, Lund
  • Cardiovascular Research - Hypertension
  • EpiHealth: Epidemiology for Health
  • Internal Medicine - Epidemiology
  • Diabetes - Cardiovascular Disease

Publishing year

2018-09

Language

English

Pages

1225-1233

Publication/Series

Nature Genetics

Volume

50

Issue

9

Document type

Journal article

Publisher

Nature Publishing Group

Topic

  • Medical Genetics

Status

Published

Research group

  • Cardiovascular Research - Hypertension
  • Internal Medicine - Epidemiology
  • Diabetes - Cardiovascular Disease

ISBN/ISSN/Other

  • ISSN: 1061-4036