Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study

The FKBP5 gene, a glucocorticoid receptor (GR)-regulating co-chaperone of stress proteins, is of special interest because of its role in hypothalamic-pituitary-adrenal (HPA)-axis regulation. However, studies finding a genetic relationship between posttraumatic stress disorder (PTSD) and the FKBP5 ge...

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Main Authors: Annie-Claude David, Geeta A. Thakur, Vivian Akerib, Jorge Armony, Isabelle Rouleau, Alain Brunet
Format: Article
Language:English
Published: MDPI AG 2012-06-01
Series:Behavioral Sciences
Subjects:
Online Access:http://www.mdpi.com/2076-328X/2/2/103
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author Annie-Claude David
Geeta A. Thakur
Vivian Akerib
Jorge Armony
Isabelle Rouleau
Alain Brunet
author_facet Annie-Claude David
Geeta A. Thakur
Vivian Akerib
Jorge Armony
Isabelle Rouleau
Alain Brunet
author_sort Annie-Claude David
collection DOAJ
description The FKBP5 gene, a glucocorticoid receptor (GR)-regulating co-chaperone of stress proteins, is of special interest because of its role in hypothalamic-pituitary-adrenal (HPA)-axis regulation. However, studies finding a genetic relationship between posttraumatic stress disorder (PTSD) and the FKBP5 gene have failed to distinguish between the development and persistence of PTSD, thereby limiting the prognostic usefulness of such a finding. The present study sought to longitudinally explore this question by examining the association between four single-nucleotide polymorphisms (SNPs) in the FKBP5 gene (rs3800373, rs9470080, rs1360780, and rs9296158), the persistence of PTSD (severity and diagnostic status), and memory performance among twenty-two treatment-seekers diagnosed with acute PTSD. Results showed that the four SNPs significantly interacted with improvement in PTSD symptoms as well as PTSD diagnostic status. Individuals homozygous for the dominant allele and having experienced higher levels of peritraumatic responses subsequently showed more memory dysfunction. The results of this study suggest that SNPs in the FKBP5 gene are associated with symptom persistence and memory dysfunction in acute PTSD.
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spelling doaj.art-ad2339f5626544fba85abf85f6cf4f242022-12-22T00:58:41ZengMDPI AGBehavioral Sciences2076-328X2012-06-012210311410.3390/bs2020103Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot StudyAnnie-Claude DavidGeeta A. ThakurVivian AkeribJorge ArmonyIsabelle RouleauAlain BrunetThe FKBP5 gene, a glucocorticoid receptor (GR)-regulating co-chaperone of stress proteins, is of special interest because of its role in hypothalamic-pituitary-adrenal (HPA)-axis regulation. However, studies finding a genetic relationship between posttraumatic stress disorder (PTSD) and the FKBP5 gene have failed to distinguish between the development and persistence of PTSD, thereby limiting the prognostic usefulness of such a finding. The present study sought to longitudinally explore this question by examining the association between four single-nucleotide polymorphisms (SNPs) in the FKBP5 gene (rs3800373, rs9470080, rs1360780, and rs9296158), the persistence of PTSD (severity and diagnostic status), and memory performance among twenty-two treatment-seekers diagnosed with acute PTSD. Results showed that the four SNPs significantly interacted with improvement in PTSD symptoms as well as PTSD diagnostic status. Individuals homozygous for the dominant allele and having experienced higher levels of peritraumatic responses subsequently showed more memory dysfunction. The results of this study suggest that SNPs in the FKBP5 gene are associated with symptom persistence and memory dysfunction in acute PTSD.http://www.mdpi.com/2076-328X/2/2/103FKBP5HPA-axisglucocorticoid receptorremissionCanadians
spellingShingle Annie-Claude David
Geeta A. Thakur
Vivian Akerib
Jorge Armony
Isabelle Rouleau
Alain Brunet
Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
Behavioral Sciences
FKBP5
HPA-axis
glucocorticoid receptor
remission
Canadians
title Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
title_full Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
title_fullStr Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
title_full_unstemmed Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
title_short Symptom Persistence and Memory Performance in Posttraumatic Stress Disorder: A Gene X Environment Pilot Study
title_sort symptom persistence and memory performance in posttraumatic stress disorder a gene x environment pilot study
topic FKBP5
HPA-axis
glucocorticoid receptor
remission
Canadians
url http://www.mdpi.com/2076-328X/2/2/103
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