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

Autor: Kelley M. Swanberg, Leonardo Campos, Chadi G. Abdallah, Christoph Juchem
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Chronic Stress, Vol 6 (2022)
Druh dokumentu: article
ISSN: 2470-5470
24705470
DOI: 10.1177/24705470221128004
Popis: 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 ( 1 H MRS) enables noninvasive measurement of small-molecule metabolites in the living human. 1 H 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 1 H-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 (I 2
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