Shared polygenic contribution between childhood attention-deficit hyperactivity disorder and adult schizophrenia

Hamshere, Marian Lindsay, Stergiakouli, Evangelia, Langley, Kate, Martin, Joanna, Holmans, Peter Alan, Kent, L., Owen, Michael John, Gill, M., Thapar, Anita, O'Donovan, Michael Conlon and Craddock, Nicholas John 2013. Shared polygenic contribution between childhood attention-deficit hyperactivity disorder and adult schizophrenia. British Journal of Psychiatry 203 (2) , pp. 107-111. 10.1192/bjp.bp.112.117432

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Abstract

Background: There is recent evidence of some degree of shared genetic susceptibility between adult schizophrenia and childhood attention-deficit hyperactivity disorder (ADHD) for rare chromosomal variants. Aims: To determine whether there is overlap between common alleles conferring risk of schizophrenia in adults with those that do so for ADHD in children. Method: We used recently published Psychiatric Genome-wide Association Study (GWAS) Consortium (PGC) adult schizophrenia data to define alleles over-represented in people with schizophrenia and tested whether those alleles were more common in 727 children with ADHD than in 2067 controls. Results: Schizophrenia risk alleles discriminated ADHD cases from controls (P = 1.04 × 10–4, R2 = 0.45%); stronger discrimination was given by alleles that were risk alleles for both adult schizophrenia and adult bipolar disorder (also derived from a PGC data-set) (P = 9.98 × 10–6, R2 = 0.59%). Conclusions: This increasing evidence for a small, but significant, shared genetic susceptibility between adult schizophrenia and childhood ADHD highlights the importance of research work across traditional diagnostic boundaries.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG) Medicine Systems Immunity Research Institute (SIURI) Neuroscience and Mental Health Research Institute (NMHRI)
Subjects:	B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher:	Royal College of Psychiatrists
ISSN:	0007-1250
Funders:	Wellcome Trust, Medical Research Council, NIHR
Date of First Compliant Deposit:	30 March 2016
Last Modified:	11 May 2022 07:12
URI:	https://orca.cardiff.ac.uk/id/eprint/48093

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