Follow-up of genetic linkage findings on chromosome 16p13: evidence of association of N-methyl-D aspartate glutamate receptor 2A gene polymorphism with ADHD

Turic, Dragana, Langley, Kate ORCID: https://orcid.org/0000-0002-2033-2657, Mills, S., Stephens, M., Lawson, D., Govan, Catherine, Williams, Nigel Melville ORCID: https://orcid.org/0000-0003-1177-6931, van den Bree, Marianne Bernadette ORCID: https://orcid.org/0000-0002-4426-3254, Craddock, Nicholas John ORCID: https://orcid.org/0000-0003-2171-0610, Kent, L., Owen, Michael John ORCID: https://orcid.org/0000-0003-4798-0862, O'Donovan, Michael Conlon ORCID: https://orcid.org/0000-0001-7073-2379 and Thapar, Anita ORCID: https://orcid.org/0000-0002-3689-737X 2004. Follow-up of genetic linkage findings on chromosome 16p13: evidence of association of N-methyl-D aspartate glutamate receptor 2A gene polymorphism with ADHD. Molecular Psychiatry 9 (2) , pp. 169-173. 10.1038/sj.mp.4001387

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Abstract

Attention deficit hyperactivity disorder (ADHD) is a childhood onset disorder, for which there is good evidence that genetic factors contribute to the aetiology. Recently reported linkage findings suggested evidence of a susceptibility locus on chromosome 16p13 (maximum LOD score of 4.2, P=5 10-6). The GRIN2A (glutamate receptor, ionotropic, N-methyl D-aspartate 2A) gene that encodes the N-methyl D-aspartate receptor subunit 2A (NMDA2A) maps to this region of linkage. As this is also a good functional candidate gene for ADHD, we undertook family-based association analysis in a sample of 238 families. We found significant evidence of association with a GRIN2A exon 5 polymorphism (2=5.7, P=0.01). Our data suggest that genetic variation in GRIN2A may confer increased risk for ADHD and that this, at least in part, might be responsible for the linkage result on 16p reported by Smalley et al. We conclude that replication is required and that further work examining for association of GRIN2A polymorphisms with ADHD is warranted.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG) Medicine Neuroscience and Mental Health Research Institute (NMHRI)
Subjects:	R Medicine > R Medicine (General)
Publisher:	Nature Publishing Group
ISSN:	1359-4184
Last Modified:	27 Oct 2022 08:23
URI:	https://orca.cardiff.ac.uk/id/eprint/62164

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