Cited by 30Genetic Associations and EpidemiologySchizophrenia research and treatmentGenetic Mapping and Diversity in Plants and Animals

Genome-wide association analysis identifies common variants influencing infant brain volumes

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Xia, K, Zhang, J, Ahn, M, Jha, S, Crowley, J J, Szatkiewicz, J, Li, T, Zou, F +8 more·2017·Translational Psychiatry

Abstract

Genome-wide association studies (GWAS) of adolescents and adults are transforming our understanding of how genetic variants impact brain structure and psychiatric risk, but cannot address the reality that psychiatric disorders are unfolding developmental processes with origins in fetal life. To investigate how genetic variation impacts prenatal brain development, we conducted a GWAS of global brain tissue volumes in 561 infants. An intronic single-nucleotide polymorphism (SNP) in IGFBP7 (rs114518130) achieved genome-wide significance for gray matter volume ( P =4.15 × 10 −10 ). An intronic SNP in WWOX (rs10514437) neared genome-wide significance for white matter volume ( P =1.56 × 10 −8 ). Additional loci with small P -values included psychiatric GWAS associations and transcription factors expressed in developing brain. Genetic predisposition scores for schizophrenia and ASD, and the number of genes impacted by rare copy number variants (CNV burden) did not predict global brain tissue volumes. Integration of these results with large-scale neuroimaging GWAS in adolescents (PNC) and adults (ENIGMA2) suggests minimal overlap between common variants impacting brain volumes at different ages. Ultimately, by identifying genes contributing to adverse developmental phenotypes, it may be possible to adjust adverse trajectories, preventing or ameliorating psychiatric and developmental disorders.

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  • An intronic SNP in IGFBP7 (rs114518130) is significantly associated with grey-matter volume, with volume increasing with increasing dose of the G allele.

    “an intronic single-nucleotide polymorphism (SNP) in IGFBP7 (rs114518130) was found to be significantly associated with grey-matter volume (volume increases with increasing dose of the G allele).”
  • The first GWAS of neonatal brain structure requires independent replication, particularly for the imputed low-frequency IGFBP7 SNP absent from the largest racial/ethnic group.

    “This is the first study of its kind162 and independent replication is crucial, especially for the IGFBP7 intronic SNP, which was imputed, has a low minor allele frequency, and was not present in the largest racial/ethnic group in the study.”
  • An intronic SNP in WWOX (rs10514437) fell just short of genome-wide significance for white matter.

    “An intronic SNP in WWOX (rs10514437) fell just short of genome-wide significance for white matter.”
  • Common variants associated with neonatal brain structure have been identified using a genome-wide association study.

    “common variants associated with neonatal brain structure have been identified using a genome-wide association study (GWAS) approach162.”

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Research works printed but not linked: 1

  1. Ripke S, Neale BM, Corvin A, Walters JTR, Farh KH, Holmans PA et al. Biological insights from 108 schizophrenia-associated genetic loci. Nature 2014; 511: 421–427. 25056061 PMC4112379

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Authors
Xia, K., Zhang, J., Ahn, M., Jha, S., Crowley, J. J., Szatkiewicz, J., Li, T., Zou, F., Zhu, H., Hibar, D., Thompson, P., ENIGMA Consortium, Sullivan, P. F., Styner, M., Gilmore, J. H., & Knickmeyer, R. C.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • The University of Texas MD Anderson Cancer Center (US)
  • University of Southern California (US)
Corresponding author
Knickmeyer, R C
Venue
Translational Psychiatry
Published
2017-08-01
Volume
7
Issue
8
Pages
e1188-e1188
ISSN
2158-3188 (ISSN-L)
OpenAlex
W2740817192
Cited by
30
References
66
Citations by year
2025: 3 · 2023: 4 · 2022: 2 · 2021: 7 · 2020: 4 · 2019: 3 · 2018: 6 · 2017: 1
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • National Alliance for Research on Schizophrenia and Depression (HD053000, MH070890)
  • Wellcome Trust (U54 EB020403)
  • John and Polly Sparks Foundation
  • National Institutes of Health (DMS-1407655, SES-1357666, HD-003110, MH070890, EB005149, EB005149-01, MH064065, RR025747, EB020403)
  • National Institute of Mental Health (RC2MH089983, U01MH070890, P50MH064065, RC2MH089924, R01MH092335, R01MH106611, R21MH099370, R01MH086633, R01MH070890, K01MH083045)
  • National Cancer Institute
  • National Institute of Neurological Disorders and Stroke (T32NS007431)
  • National Institute of Biomedical Imaging and Bioengineering (U54EB005149, U54EB020403, P41EB015922)
  • National Center for Research Resources (UL1RR025747)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD053000, P30HD003110)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
Keywords
gray matter volume, white matter volume, fetal brain development, IGFBP7, WWOX, single nucleotide polymorphisms, schizophrenia, autism spectrum disorder, copy number variation, neuroimaging genetics
MeSH terms
Brain, Female, Humans, Infant, Infant, Newborn, Magnetic Resonance Imaging, Male, Organ Size, Insulin-Like Growth Factor Binding Proteins, Polymorphism, Single Nucleotide, Genome-Wide Association Study, Neuroimaging

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