Cited by 35Attention Deficit Hyperactivity DisorderTraumatic Brain Injury ResearchAutism Spectrum Disorder Research

Polygenic risk and neural substrates of attention-deficit/hyperactivity disorder symptoms in youths with a history of mild traumatic brain injury

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Stojanovski, Sonja, Felsky, Daniel, Viviano, Joseph D., Shahab, Saba, Bangali, Rutwik, Burton, Christie L., Devenyi, Gabriel A., O’Donnell, Lauren J. +6 more·2019·Biological Psychiatry

Abstract

Background Attention-deficit/hyperactivity disorder (ADHD) is a major sequela of traumatic brain injury (TBI) in youths. The objective of this study was to examine whether ADHD symptoms are differentially associated with genetic risk and brain structure in youths with and without a history of TBI.Methods Medical history, ADHD symptoms, genetic data, and neuroimaging data were obtained from a community sample of youths. ADHD symptom severity was compared between those with and without TBI (TBI n = 418, no TBI n = 3193). The relationship of TBI history, genetic vulnerability, brain structure, and ADHD symptoms was examined by assessing 1) ADHD polygenic score (discovery sample ADHD n = 19,099, control sample n = 34,194), 2) basal ganglia volumes, and 3) fractional anisotropy in the corpus callosum and corona radiata.Results Youths with TBI reported greater ADHD symptom severity compared with those without TBI. Polygenic score was positively associated with ADHD symptoms in youths without TBI but not in youths with TBI. The negative association between the caudate volume and ADHD symptoms was not moderated by a history of TBI. However, the relationship between ADHD symptoms and structure of the genu of the corpus callosum was negative in youths with TBI and positive in youths without TBI.Conclusions The identification of distinct ADHD etiology in youths with TBI provides neurobiological insight into the clinical heterogeneity in the disorder. Results indicate that genetic predisposition to ADHD does not increase the risk for ADHD symptoms associated with TBI. ADHD symptoms associated with TBI may be a result of a mechanical insult rather than neurodevelopmental factors.

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Authors
Stojanovski, S., Felsky, D., Viviano, J. D., Shahab, S., Bangali, R., Burton, C. L., Devenyi, G. A., O’Donnell, L. J., Szatmari, P., Chakravarty, M. M., Ameis, S., Schachar, R., Voineskos, A. N., & Wheeler, A. L.
Affiliations
  • University of Toronto (CA)
  • Broad Institute (US)
  • Centre for Addiction and Mental Health (CA)
  • Hospital for Sick Children (CA)
  • Douglas Mental Health University Institute (CA)
  • Brigham and Women's Hospital (US)
Corresponding author
Wheeler, Anne L.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2019-03
Volume
85
Issue
5
Pages
408-416
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2883724802
Cited by
35
References
59
Citations by year
2026: 4 · 2025: 2 · 2024: 1 · 2023: 4 · 2022: 9 · 2021: 8 · 2020: 6 · 2019: 1
FWCI
2.95
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Mental Health (RC2MH089983, R01MH099167, RC2MH089924)
  • National Cancer Institute (U01CA199459)
  • National Institute of Neurological Disorders and Stroke (R03NS088301)
  • National Institute of Biomedical Imaging and Bioengineering (P41EB015902, P41EB015898)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
attention deficit hyperactivity disorder, mild traumatic brain injury, polygenic risk, adolescents, caudate volume, basal ganglia, corpus callosum, fractional anisotropy, corona radiata, brain structure, genetic susceptibility, ADHD etiology
MeSH terms
Adolescent, Attention Deficit Disorder with Hyperactivity, Basal Ganglia, Brain Concussion, Child, Corpus Callosum, Female, Humans, Male, Severity of Illness Index, Case-Control Studies, Anisotropy, Multifactorial Inheritance, Young Adult, Diffusion Tensor Imaging, Neuroimaging, White Matter

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