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Proton Magnetic Resonance Spectroscopy in Post-Traumatic Stress Disorder-Updated Systematic Review and Meta-Analysis

Swanberg, Kelley M LU orcid ; Campos, Leonardo ; Abdallah, Chadi G and Juchem, Christoph (2022) In Chronic Stress 6. p.1-23
Abstract

A stressor-related disorder wherein traumatic experience precipitates protracted disruptions to mood and cognition, post-traumatic stress disorder (PTSD) is associated with wide-ranging abnormalities across the body. While various methods have investigated these deviations, only proton magnetic resonance spectroscopy (1H MRS) enables noninvasive measurement of small-molecule metabolites in the living human. 1H MRS has correspondingly been employed to test hypotheses about the composition and function of multiple brain regions putatively involved in PTSD. Here we systematically review methodological considerations and reported findings, both positive and negative, of the current 1H-MRS literature in PTSD (N = 32 studies) to communicate... (More)

A stressor-related disorder wherein traumatic experience precipitates protracted disruptions to mood and cognition, post-traumatic stress disorder (PTSD) is associated with wide-ranging abnormalities across the body. While various methods have investigated these deviations, only proton magnetic resonance spectroscopy (1H MRS) enables noninvasive measurement of small-molecule metabolites in the living human. 1H MRS has correspondingly been employed to test hypotheses about the composition and function of multiple brain regions putatively involved in PTSD. Here we systematically review methodological considerations and reported findings, both positive and negative, of the current 1H-MRS literature in PTSD (N = 32 studies) to communicate the brain regional metabolite alterations heretofore observed, providing random-effects model meta-analyses for those most extensively studied. Our review suggests significant PTSD-associated decreases in N-acetyl aspartate in bilateral hippocampus and anterior cingulate cortex with less evident effect in other metabolites and regions. Model heterogeneities diverged widely by analysis (I2 < 0.01% to 90.1%) and suggested regional dependence on quantification reference (creatine or otherwise). While observed variabilities in methods and reported findings suggest that 1H-MRS explorations of PTSD could benefit from methodological standardization, informing this standardization by quantitative assessment of the existing literature is currently hampered by its small size and limited scope.

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author
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publishing date
type
Contribution to journal
publication status
published
in
Chronic Stress
volume
6
pages
1 - 23
publisher
SAGE Publications
external identifiers
  • scopus:85139462451
  • pmid:36237981
ISSN
2470-5470
DOI
10.1177/24705470221128004
language
English
LU publication?
no
additional info
© The Author(s) 2022.
id
ac85a0a5-10ed-4bbf-a2cc-d75dcdc1b3ee
date added to LUP
2023-09-18 14:58:43
date last changed
2024-04-19 02:22:48
@article{ac85a0a5-10ed-4bbf-a2cc-d75dcdc1b3ee,
  abstract     = {{<p>A stressor-related disorder wherein traumatic experience precipitates protracted disruptions to mood and cognition, post-traumatic stress disorder (PTSD) is associated with wide-ranging abnormalities across the body. While various methods have investigated these deviations, only proton magnetic resonance spectroscopy (1H MRS) enables noninvasive measurement of small-molecule metabolites in the living human. 1H MRS has correspondingly been employed to test hypotheses about the composition and function of multiple brain regions putatively involved in PTSD. Here we systematically review methodological considerations and reported findings, both positive and negative, of the current 1H-MRS literature in PTSD (N = 32 studies) to communicate the brain regional metabolite alterations heretofore observed, providing random-effects model meta-analyses for those most extensively studied. Our review suggests significant PTSD-associated decreases in N-acetyl aspartate in bilateral hippocampus and anterior cingulate cortex with less evident effect in other metabolites and regions. Model heterogeneities diverged widely by analysis (I2 &lt; 0.01% to 90.1%) and suggested regional dependence on quantification reference (creatine or otherwise). While observed variabilities in methods and reported findings suggest that 1H-MRS explorations of PTSD could benefit from methodological standardization, informing this standardization by quantitative assessment of the existing literature is currently hampered by its small size and limited scope.</p>}},
  author       = {{Swanberg, Kelley M and Campos, Leonardo and Abdallah, Chadi G and Juchem, Christoph}},
  issn         = {{2470-5470}},
  language     = {{eng}},
  pages        = {{1--23}},
  publisher    = {{SAGE Publications}},
  series       = {{Chronic Stress}},
  title        = {{Proton Magnetic Resonance Spectroscopy in Post-Traumatic Stress Disorder-Updated Systematic Review and Meta-Analysis}},
  url          = {{http://dx.doi.org/10.1177/24705470221128004}},
  doi          = {{10.1177/24705470221128004}},
  volume       = {{6}},
  year         = {{2022}},
}