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Gupta A, Mayer EA, Acosta JR, Hamadani K, Torgerson C, van Horn JD, Chang L, Naliboff B, Tillisch K, Labus JS. Early adverse life events are associated with altered brain network architecture in a sex- dependent manner. Neurobiol Stress 2017; 7:16-26. [PMID: 28239631 PMCID: PMC5318542 DOI: 10.1016/j.ynstr.2017.02.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 01/25/2017] [Accepted: 02/11/2017] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION Early adverse life events (EALs) increase the risk for chronic medical and psychiatric disorders by altering early neurodevelopment. The aim of this study was to examine associations between EALs and network properties of core brain regions in the emotion regulation and salience networks, and to test the influence of sex on these associations. METHODS Resting-state functional and diffusion tensor magnetic resonance imaging were obtained in healthy individuals (61 men, 63 women). Functional and anatomical network properties of centrality and segregation were calculated for the core regions of the two networks using graph theory. Moderator analyses were applied to test hypotheses. RESULTS The type of adversity experienced influences brain wiring differently, as higher general EALs were associated with decreased functional and anatomical centrality in salience and emotion regulation regions, while physical and emotional EALs were associated with increased anatomical centrality and segregation in emotion regulation regions. Sex moderated the associations between EALs and measures of centrality; with decreased centrality of salience and emotion regulation regions with increased general EALs in females, and increased centrality in salience regions with higher physical and emotional EALs in males. Increased segregation of salience regions was associated with increased general EALs in males. Centrality of the amygdala was associated with physical symptoms, and segregation of salience regions was correlated with higher somatization in men only. CONCLUSIONS Emotion regulation and salience regions are susceptible to topological brain restructuring associated with EALs. The male and female brains appear to be differently affected by specific types of EALs.
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Affiliation(s)
- Arpana Gupta
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States
| | - Emeran A Mayer
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; Department of Psychiatry, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States; Ahmanson-Lovelace Brain Mapping Center, UCLA, Los Angeles, CA, United States
| | - Jonathan R Acosta
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States
| | - Kareem Hamadani
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States
| | - Carinna Torgerson
- The Institute for Neuroimaging and Informatics (INI) and Laboratory of NeuroImaging (LONI), Keck School of Medicine at USC, Los Angeles, CA, United States
| | - John D van Horn
- The Institute for Neuroimaging and Informatics (INI) and Laboratory of NeuroImaging (LONI), Keck School of Medicine at USC, Los Angeles, CA, United States
| | - Lin Chang
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States
| | - Bruce Naliboff
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; Department of Psychiatry, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States; UCLA Brain Research Institute, Los Angeles, CA, United States
| | - Kirsten Tillisch
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States; Department of Integrative Medicine, GLA VHA, Los Angeles, CA, United States
| | - Jennifer S Labus
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, UCLA, Los Angeles, CA, United States; Department of Medicine, UCLA, Los Angeles, CA, United States; Department of Psychiatry, UCLA, Los Angeles, CA, United States; UCLA Vatche and Tamar Manoukian Division of Digestive Diseases, UCLA, Los Angeles, CA, United States; UCLA Brain Research Institute, Los Angeles, CA, United States
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