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SLC6A4 methylation modifies the effect of the number of traumatic events on risk for posttraumatic stress disorder
Authors
Beach
Bernstein
+36 more
Blake
Brody
Cornelis
Down
First
Fujita
Gardiner-Garden
Gelernter
Grabe
Grafodatskaya
Hu
Kessler
Kessler
Kessler
Kessler
Kilpatrick
Koenen
Kolassa
Le-Niculescu
Lee
Lesch
Lomelin
Mellman
Meyer-Lindenberg
Munafo
Ozer
Philibert
Philibert
Sayin
Stein
Tao-Cheng
Thakur
Uddin
Wrona
Xie
Zhang
Publication date
1 August 2011
Publisher
'Wiley'
Doi
Cite
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on
PubMed
Abstract
Background: Posttraumatic stress disorder (PTSD) is a common and debilitating mental disorder that occurs following exposure to a traumatic event. However, most individuals do not develop PTSD following even a severe trauma, leading to a search for new variables, such as genetic and other molecular variation, associated with vulnerability and resilience in the face of trauma exposure. Method: We examined whether serotonin transporter (SLC6A4) promoter genotype and methylation status modified the association between number of traumatic events experienced and PTSD in a subset of 100 individuals from the Detroit Neighborhood Health Study. Results: Number of traumatic events was strongly associated with risk of PTSD. Neither SLC6A4 genotype nor methylation status was associated with PTSD in main effects models. However, SLC6A4 methylation levels modified the effect of the number of traumatic events on PTSD after controlling for SLC6A4 genotype. Persons with more traumatic events were at increased risk for PTSD, but only at lower methylation levels. At higher methylation levels, individuals with more traumatic events were protected from this disorder. This interaction was observed whether the outcome was PTSD diagnosis, symptom severity, or number of symptoms. Conclusions: Gene‐specific methylation patterns may offer potential molecular signatures of increased risk for and resilience to PTSD. Depression and Anxiety, 2011. © 2011 Wiley‐Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87125/1/20825_ftp.pd
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info:doi/10.1002%2Fda.20825
Last time updated on 18/02/2019
Deep Blue Documents at the University of Michigan
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oai:deepblue.lib.umich.edu:202...
Last time updated on 25/05/2012