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Identification of shared and differentiating genetic architecture for autism spectrum disorder, attention-deficit hyperactivity disorder and case subgroups

  • Manuel Mattheisen
  • , Jakob Grove
  • , Thomas D. Als
  • , Joanna Martin
  • , Georgios Voloudakis
  • , Sandra Meier
  • , Ditte Demontis
  • , Jaroslav Bendl
  • , Raymond Walters
  • , Caitlin E. Carey
  • , Anders Rosengren
  • , Nora I. Strom
  • , Mads Engel Hauberg
  • , Biao Zeng
  • , Gabriel Hoffman
  • , Wen Zhang
  • , Jonas Bybjerg-Grauholm
  • , Marie Bækvad-Hansen
  • , Esben Agerbo
  • , Bru Cormand
  • Merete Nordentoft, Thomas Werge, Ole Mors, David M. Hougaard, Joseph D. Buxbaum, Stephen V. Faraone, Barbara Franke, Søren Dalsgaard, Preben B. Mortensen, Elise B. Robinson, Panos Roussos, Benjamin M. Neale, Mark J. Daly, Anders D. Børglum
  • Aarhus University
  • Dalhousie University
  • Ludwig Maximilian University of Munich
  • iPSYCH
  • Center for Genomics and Personalized Medicine
  • Cardiff University
  • Icahn School of Medicine at Mount Sinai
  • Harvard University
  • Broad Institute
  • University of Copenhagen
  • Karolinska Institutet
  • Statens Serum Institut
  • University of Barcelona
  • Center for Biological Research and Center for Biomedical Network Research on Rare Diseases
  • Institut de Recerca Sant Joan de Déu (IR-SJD)
  • Mental Health Centre Copenhagen
  • University Hospital
  • Radboud University Nijmegen
  • VA Medical Center
  • University of Helsinki

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

Attention-deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are highly heritable neurodevelopmental conditions, with considerable overlap in their genetic etiology. We dissected their shared and distinct genetic etiology by cross-disorder analyses of large datasets. We identified seven loci shared by the disorders and five loci differentiating them. All five differentiating loci showed opposite allelic directions in the two disorders and significant associations with other traits, including educational attainment, neuroticism and regional brain volume. Integration with brain transcriptome data enabled us to identify and prioritize several significantly associated genes. The shared genomic fraction contributing to both disorders was strongly correlated with other psychiatric phenotypes, whereas the differentiating portion was correlated most strongly with cognitive traits. Additional analyses revealed that individuals diagnosed with both ASD and ADHD were double-loaded with genetic predispositions for both disorders and showed distinctive patterns of genetic association with other traits compared with the ASD-only and ADHD-only subgroups. These results provide insights into the biological foundation of the development of one or both conditions and of the factors driving psychopathology discriminatively toward either ADHD or ASD.

Original languageEnglish
Pages (from-to)1470-1478
Number of pages9
JournalNature Genetics
Volume54
Issue number10
DOIs
StatePublished - Oct 2022

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