From genetics to systems biology of stress-related mental disorders.

Journal: Neurobiology of stress

Volume: 15

Issue: 

Year of Publication: 

Affiliated Institutions:  South African Medical Research Council (SAMRC), Unit on Risk & Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa. Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, USA.

Abstract summary 

Many individuals will be exposed to some form of traumatic stress in their lifetime which, in turn, increases the likelihood of developing stress-related disorders such as post-traumatic stress disorder (PTSD), major depressive disorder (MDD) and anxiety disorders (ANX). The development of these disorders is also influenced by genetics and have heritability estimates ranging between ∼30 and 70%. In this review, we provide an overview of the findings of genome-wide association studies for PTSD, depression and ANX, and we observe a clear genetic overlap between these three diagnostic categories. We go on to highlight the results from transcriptomic and epigenomic studies, and, given the multifactorial nature of stress-related disorders, we provide an overview of the gene-environment studies that have been conducted to date. Finally, we discuss systems biology approaches that are now seeing wider utility in determining a more holistic view of these complex disorders.

Authors & Co-authors:  Dalvie Shareefa S Chatzinakos Chris C Al Zoubi Obada O Georgiadis Foivos F Lancashire Lee L Daskalakis Nikolaos P NP

Study Outcome 

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Statistics
Citations :  Aberg K.A., Dean B., Shabalin A.A., Chan R.F., Han L.K.M., Zhao M., van Grootheest G., Xie L.Y., Milaneschi Y., Clark S.L., Turecki G., Penninx B., van den Oord E. Methylome-wide association findings for major depressive disorder overlap in blood and brain and replicate in independent brain samples. Mol. Psychiatr. 2020;25:1344–1354.
Authors :  7
Identifiers
Doi : 100393
SSN : 2352-2895
Study Population
Male,Female
Mesh Terms
Other Terms
Epigenomics;Genetics;Stress disorders;Systems biology;Transcriptome;Traumatic
Study Design
Cross Sectional Study
Study Approach
Country of Study
Publication Country
United States