Schizophrenia-risk variant rs6994992 in the neuregulin-1 gene on brain developmental trajectories in typically developing children

V. Douet, L. Chang, A. Pritchett, K. Lee, B. Keating, H. Bartsch, T. L. Jernigan, A. Dale, N. Akshoomoff, S. Murray, C. Bloss, D. N. Kennedy, David G Amaral, J. Gruen, W. E. Kaufmann, B. J. Casey, E. Sowell, T. Ernst

Research output: Contribution to journalArticle

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Abstract

The neuregulin-1 (NRG1) gene is one of the best-validated risk genes for schizophrenia, psychotic and bipolar disorders. The rs6994992 variant in the NRG1 promoter (SNP8NRG243177) was associated with altered frontal and temporal brain macrostructures and/or altered white matter density and integrity in schizophrenic adults, as well as healthy adults and neonates. However, the ages when these changes begin and whether neuroimaging phenotypes are associated with cognitive performance are not fully understood. Therefore, we investigated the association of the rs6994992 variant on developmental trajectories of brain macro- and microstructures, and their relationship with cognitive performance. A total of 972 healthy children aged 3-20 years had the genotype available for the NRG1-rs6994992 variant, and evaluated with magnetic resonance imaging (MRI) and neuropsychological tests. Age-by-NRG1-rs6994992 interactions and genotype effects were assessed using a general additive model regression methodology, covaried for scanner type, socioeconomic status, sex and genetic ancestry factors. Compared with the C-carriers, children with the TT-risk-alleles had subtle microscopic and macroscopic changes in brain development that emerge or reverse during adolescence, a period when many psychiatric disorders are manifested. TT-children at late adolescence showed a lower agedependent forniceal volume and lower fractional anisotropy; both measures negatively associated with episodic memory performance. To our knowledge, we provide the first multimodal imaging evidence that genetic variation in NRG1 is associated with age-related changes on brain development during typical childhood and adolescence, and delineated the altered patterns of development in multiple brain regions in children with the T-risk allele(s).

Original languageEnglish (US)
Article numbere392
JournalTranslational Psychiatry
Volume4
DOIs
StatePublished - Jun 3 2014

Fingerprint

Neuregulin-1
Schizophrenia
Brain
Genes
Alleles
Genotype
Multimodal Imaging
Episodic Memory
Neuropsychological Tests
Anisotropy
Bipolar Disorder
Neuroimaging
Social Class
Psychotic Disorders
Psychiatry
Magnetic Resonance Imaging
Newborn Infant
Phenotype

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry
  • Cellular and Molecular Neuroscience

Cite this

Schizophrenia-risk variant rs6994992 in the neuregulin-1 gene on brain developmental trajectories in typically developing children. / Douet, V.; Chang, L.; Pritchett, A.; Lee, K.; Keating, B.; Bartsch, H.; Jernigan, T. L.; Dale, A.; Akshoomoff, N.; Murray, S.; Bloss, C.; Kennedy, D. N.; Amaral, David G; Gruen, J.; Kaufmann, W. E.; Casey, B. J.; Sowell, E.; Ernst, T.

In: Translational Psychiatry, Vol. 4, e392, 03.06.2014.

Research output: Contribution to journalArticle

Douet, V, Chang, L, Pritchett, A, Lee, K, Keating, B, Bartsch, H, Jernigan, TL, Dale, A, Akshoomoff, N, Murray, S, Bloss, C, Kennedy, DN, Amaral, DG, Gruen, J, Kaufmann, WE, Casey, BJ, Sowell, E & Ernst, T 2014, 'Schizophrenia-risk variant rs6994992 in the neuregulin-1 gene on brain developmental trajectories in typically developing children', Translational Psychiatry, vol. 4, e392. https://doi.org/10.1038/tp.2014.41
Douet, V. ; Chang, L. ; Pritchett, A. ; Lee, K. ; Keating, B. ; Bartsch, H. ; Jernigan, T. L. ; Dale, A. ; Akshoomoff, N. ; Murray, S. ; Bloss, C. ; Kennedy, D. N. ; Amaral, David G ; Gruen, J. ; Kaufmann, W. E. ; Casey, B. J. ; Sowell, E. ; Ernst, T. / Schizophrenia-risk variant rs6994992 in the neuregulin-1 gene on brain developmental trajectories in typically developing children. In: Translational Psychiatry. 2014 ; Vol. 4.
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