Molecular signatures of post-traumatic stress disorder in war-zone-exposed veteran and active-duty soldiers

PTSD Systems Biology Consortium

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Post-traumatic stress disorder (PTSD) is a multisystem syndrome. Integration of systems-level multi-modal datasets can provide a molecular understanding of PTSD. Proteomic, metabolomic, and epigenomic assays are conducted on blood samples of two cohorts of well-characterized PTSD cases and controls: 340 veterans and 180 active-duty soldiers. All participants had been deployed to Iraq and/or Afghanistan and exposed to military-service-related criterion A trauma. Molecular signatures are identified from a discovery cohort of 218 veterans (109/109 PTSD+/−). Identified molecular signatures are tested in 122 separate veterans (62/60 PTSD+/−) and in 180 active-duty soldiers (PTSD+/−). Molecular profiles are computationally integrated with upstream regulators (genetic/methylation/microRNAs) and functional units (mRNAs/proteins/metabolites). Reproducible molecular features of PTSD are identified, including activated inflammation, oxidative stress, metabolic dysregulation, and impaired angiogenesis. These processes may play a role in psychiatric and physical comorbidities, including impaired repair/wound healing mechanisms and cardiovascular, metabolic, and psychiatric diseases.

Original languageEnglish
Article number101045
JournalCell Reports Medicine
Volume4
Issue number5
DOIs
StatePublished - 16 May 2023

Keywords

  • active duty
  • angiogenesis
  • inflammatory response
  • metabolic dysregulation
  • molecular signature
  • multi-omics
  • oxidative stress
  • post-traumatic stress disorder
  • veterans
  • wound healing

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