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Dose response of the 16p11.2 distal copy number variant on intracranial volume and basal ganglia

  • for the 16p11.2 European Consortium, for the ENIGMA-CNV working group
  • University of Oslo
  • deCODE Genetics
  • University of Southern California
  • Johnson & Johnson
  • University of Lausanne
  • Vrije Universiteit Amsterdam
  • Amsterdam University Medical Centers
  • National Ageing Research Institute
  • University of Melbourne
  • Jülich Research Centre
  • Heinrich Heine University Düsseldorf
  • JARA-BRAIN
  • Umeå University
  • Murdoch University
  • University of Toronto
  • University of Texas Rio Grande Valley
  • Radboud University Nijmegen
  • University of Bergen
  • University of New South Wales
  • Utrecht University
  • University of Greifswald
  • University of New Mexico
  • Royal College of Surgeons in Ireland
  • University of California at San Diego
  • University of Basel
  • King's College London
  • Trinity College Dublin
  • Hospital Universitario Marques de Valdecilla
  • San Juan de Dios Sanitary Park
  • Department of Psychiatry and Mental Health
  • South London and Maudsley NHS Foundation Trust
  • VU University Medical Center
  • Queensland University of Technology
  • University of California at Davis
  • University of Galway
  • Max Planck Institute for Human Cognitive and Brain Sciences
  • Technische Universität Dresden
  • Massachusetts General Hospital
  • Max Planck Institute for Psycholinguistics
  • Commissariat à l’énergie atomique et aux énergies alternatives
  • National Institutes of Natural Sciences - National Institute for Physiological Sciences
  • Yale University
  • Institute of Living
  • Norwegian University of Science and Technology
  • The University of Osaka
  • Princess Máxima Center for Pediatric Oncology
  • Humboldt University of Berlin
  • Erasmus University Rotterdam
  • University of Bonn
  • Fujita Health University
  • RWTH Aachen University
  • Karolinska Institutet
  • Sunnaas Rehabilitation Hospital HT
  • The University of Sydney
  • Cleveland Clinic Foundation
  • University College London
  • The Mind Research Network
  • Queensland Institute of Medical Research
  • University of Queensland
  • Amsterdam UMC
  • University of Montreal
  • University of California at Los Angeles
  • Child Mind Institute, Inc.
  • University of Calgary
  • Universidad de Salamanca
  • Hammersmith Hospital
  • ORYGEN Youth Health
  • Neuroscience Research Australia
  • Chalfont Centre for Epilepsy
  • University of Cape Town
  • Risk and Resilience in Mental Disorders Research Unit
  • Valdecilla Biomedical Research Institute IDIVAL
  • Georgia State University
  • Stellenbosch University
  • University of Iceland
  • Medical Research Council
  • German Center for Neurodegenerative Diseases
  • University of Montreal

Research output: Contribution to journalArticlepeer-review

Abstract

Carriers of large recurrent copy number variants (CNVs) have a higher risk of developing neurodevelopmental disorders. The 16p11.2 distal CNV predisposes carriers to e.g., autism spectrum disorder and schizophrenia. We compared subcortical brain volumes of 12 16p11.2 distal deletion and 12 duplication carriers to 6882 non-carriers from the large-scale brain Magnetic Resonance Imaging collaboration, ENIGMA-CNV. After stringent CNV calling procedures, and standardized FreeSurfer image analysis, we found negative dose-response associations with copy number on intracranial volume and on regional caudate, pallidum and putamen volumes (β = −0.71 to −1.37; P < 0.0005). In an independent sample, consistent results were obtained, with significant effects in the pallidum (β = −0.95, P = 0.0042). The two data sets combined showed significant negative dose-response for the accumbens, caudate, pallidum, putamen and ICV (P = 0.0032, 8.9 × 10−6, 1.7 × 10 9, 3.5 × 10−12 and 1.0 × 10−4, respectively). Full scale IQ was lower in both deletion and duplication carriers compared to non-carriers. This is the first brain MRI study of the impact of the 16p11.2 distal CNV, and we demonstrate a specific effect on subcortical brain structures, suggesting a neuropathological pattern underlying the neurodevelopmental syndromes.

Original languageEnglish
Pages (from-to)584-602
Number of pages19
JournalMolecular Psychiatry
Volume25
Issue number3
DOIs
Publication statusPublished - 1 Mar 2020
Externally publishedYes

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