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Assessment of brain age in posttraumatic stress disorder: Findings from the ENIGMA PTSD and brain age working groups

  • A.N. Clausen*
  • , K.A. Fercho
  • , M. Monsour
  • , S.G. Disner
  • , L.E. Salminen
  • , C.C. Haswell
  • , E.C. Rubright
  • , A.A. Watts
  • , M.N. Buckley
  • , A. Maron-Katz
  • , A. Sierk
  • , A. Manthey
  • , B. Suarez-Jimenez
  • , B.O. Olatunji
  • , C.L. Averill
  • , D. Hofmann
  • , D.J. Veltman
  • , E.A. Olson
  • , G. Li
  • , G.L. Forster
  • H. Walter, J. Fitzgerald, J. Théberge, J.S. Simons, J.A. Bomyea, J.L. Frijling, J.H. Krystal, J.T. Baker, K.L. Phan, K. Ressler, L.K.M. Han, L. Nawijn, L.A.M. Lebois, L. Schmaal, M. Densmore, M.E. Shenton, Mirjam van Zuiden, M. Stein, N. Fani, R.M. Simons, R.W.J. Neufeld, R. Lanius, S. van Rooij, S.B.J. Koch, S. Bonomo, T. Jovanovic, T. deRoon-Cassini, T.D. Ely, V.A. Magnotta, X. He, C.G. Abdallah, A. Etkin, C. Schmahl, C. Larson, I.M. Rosso, J.U. Blackford, J.S. Stevens, J.K. Daniels, J. Herzog, M.L. Kaufman, M. Olff, R.J. Davidson, S.R. Sponheim, S.C. Mueller, T. Straube, X. Zhu, Y. Neria, L.A. Baugh, J.H. Cole, P.M. Thompson, R.A. Morey
*Corresponding author for this work
  • Clinical Research Center
  • South Dakota State University
  • Duke University Brain Imaging and Analysis Center
  • University of Southern California
  • Comparative Genetics and Refinement, Biomedical Primate Research Centre, 2288 GJ Rijswijk, the Netherlands; Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305; Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305;
  • University Medical Centre Charite
  • Columbia University Medical Center
  • Vanderbilt University
  • National Center for PTSD
  • University of Münster
  • Amsterdam University Medical Center
  • Harvard Medical School
  • University of Chinese Academy of Sciences
  • University of Otago
  • Marquette University
  • Western University
  • UC San Diego Department of Psychiatry
  • University of Amsterdam, VU University Amsterdam
  • Harvard University
  • Ohio State University
  • University of Melbourne
  • Department of Psychiatry
  • UC San Diego Department of Family Medicine and Public Health
  • Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA.
  • New York State Psychiatric Institute
  • Wayne State University
  • Medical College of Wisconsin
  • University of Iowa
  • Medical Faculty Mannheim/Heidelberg University
  • University of Wisconsin-Milwaukee
  • University Medical Center Groningen
  • McLean Hospital/Harvard Medical School
  • ARQ National Psychotrauma Centrum
  • University of Wisconsin-Madison
  • University of Minnesota Medical School
  • Ghent University
  • University College London
  • University of Amsterdam

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Posttraumatic stress disorder (PTSD) is associated with markers of accelerated aging. Estimates of brain age, compared to chronological age, may clarify the effects of PTSD on the brain and may inform treatment approaches targeting the neurobiology of aging in the context of PTSD.

METHOD: Adult subjects (N = 2229; 56.2% male) aged 18-69 years (mean = 35.6, SD = 11.0) from 21 ENIGMA-PGC PTSD sites underwent T1-weighted brain structural magnetic resonance imaging, and PTSD assessment (PTSD+, n = 884). Previously trained voxel-wise (brainageR) and region-of-interest (BARACUS and PHOTON) machine learning pipelines were compared in a subset of control subjects (n = 386). Linear mixed effects models were conducted in the full sample (those with and without PTSD) to examine the effect of PTSD on brain predicted age difference (brain PAD; brain age - chronological age) controlling for chronological age, sex, and scan site.

RESULTS: BrainageR most accurately predicted brain age in a subset (n = 386) of controls (brainageR: ICC = 0.71, R = 0.72, MAE = 5.68; PHOTON: ICC = 0.61, R = 0.62, MAE = 6.37; BARACUS: ICC = 0.47, R = 0.64, MAE = 8.80). Using brainageR, a three-way interaction revealed that young males with PTSD exhibited higher brain PAD relative to male controls in young and old age groups; old males with PTSD exhibited lower brain PAD compared to male controls of all ages.

DISCUSSION: Differential impact of PTSD on brain PAD in younger versus older males may indicate a critical window when PTSD impacts brain aging, followed by age-related brain changes that are consonant with individuals without PTSD. Future longitudinal research is warranted to understand how PTSD impacts brain aging across the lifespan.

Original languageEnglish
Article numbere2413
JournalBrain and Behavior
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 2022
Externally publishedYes

Bibliographical note

© 2021 The Authors. Brain and Behavior published by Wiley Periodicals LLC.

Keywords

  • Adolescent
  • Adult
  • Aged
  • Aging
  • Brain/diagnostic imaging
  • Female
  • Humans
  • Machine Learning
  • Magnetic Resonance Imaging/methods
  • Male
  • Middle Aged
  • Stress Disorders, Post-Traumatic/diagnostic imaging
  • Young Adult

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