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A double-hit of stress and low-grade inflammation on functional brain network mediates posttraumatic stress symptoms
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A double-hit of stress and low-grade inflammation on functional brain network mediates posttraumatic stress symptoms
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Journal Article
A double-hit of stress and low-grade inflammation on functional brain network mediates posttraumatic stress symptoms
2020
Overview
Growing evidence indicates a reciprocal relationship between low-grade systemic inflammation and stress exposure towards increased vulnerability to neuropsychiatric disorders, including posttraumatic stress disorder (PTSD). However, the neural correlates of this reciprocity and their influence on the subsequent development of PTSD are largely unknown. Here we investigated alterations in functional connectivity among brain networks related to low-grade inflammation and stress exposure using two large independent data sets. Functional couplings among the higher-order cognitive network system including the salience, default mode, and central executive networks were reduced in association with low-grade inflammation and stress exposure. This reduced functional coupling may also be related to subsequent posttraumatic stress symptom severity. The current findings propose functional couplings among the higher-order cognitive network system as neural correlates of low-grade inflammation and stress exposure, and suggest that low-grade inflammation, alongside with stress, may render individuals more vulnerable to PTSD.
Low-grade systemic inflammation and stress increase vulnerability to neuropsychiatric disorders. Here, the authors show that inflammation and stress-induced changes in higher order cognitive networks increase vulnerability to posttraumatic stress disorder.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 59/36
/ 59/57
/ Adult
/ Brain
/ Exposure
/ Female
/ Humanities and Social Sciences
/ Humans
/ Inflammation - physiopathology
/ Male
/ Networks
/ Neural Pathways - physiopathology
/ Post traumatic stress disorder
/ Science
/ Stress Disorders, Post-Traumatic - physiopathology
