Detection of six novel de novo mutations in individuals with low resilience to psychological stress.

Genetic bases of psychological stress resilience have been studied previously, but mechanisms and genetic variants which are involved in stress resilience are still unclear. The present study aimed to evaluate the associations between variants in dopaminergic pathway genes with stress resilience. Su...

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Main Authors: Esfandiar Azadmarzabadi, Arvin Haghighatfard
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0256285
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author Esfandiar Azadmarzabadi
Arvin Haghighatfard
author_facet Esfandiar Azadmarzabadi
Arvin Haghighatfard
author_sort Esfandiar Azadmarzabadi
collection DOAJ
description Genetic bases of psychological stress resilience have been studied previously, but mechanisms and genetic variants which are involved in stress resilience are still unclear. The present study aimed to evaluate the associations between variants in dopaminergic pathway genes with stress resilience. Subjects of the present study were divided into four groups. Group A included persons with normal reactions to major life events stressors; group B included persons with an acute stress reaction to major life events stressor; group C included persons with normal reactions to Crises/catastrophes stressors, and group D included persons with an acute stress reaction to Crises/catastrophes stressors. DNA was extracted from the subject's blood, and the entire length of 14 genes DRD1, DRD2, DRD3, DRD4, DRD5, COMT, DBH, TH, MAOA, DDC, DAT, 5-HTT, BDNF, and GDNF were sequenced by automated sequencers ABI 3700. Results showed 24 point mutations in 12 genes, including 16 SNPs and six novel mutations, which were significantly correlated to low-stress resilience. Most of the SNPs were known as risk alleles in psychiatric disorders. Several associations were found between genetic variants and psychological characteristics. Findings suggest dopaminergic as an important pathway in stress and stress resilience also indicated shared genetic bases between low-stress resilience and several psychiatric disorders.
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spelling doaj.art-79336852c3bd4e4bb99ff5473e215e782022-12-21T23:30:33ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01169e025628510.1371/journal.pone.0256285Detection of six novel de novo mutations in individuals with low resilience to psychological stress.Esfandiar AzadmarzabadiArvin HaghighatfardGenetic bases of psychological stress resilience have been studied previously, but mechanisms and genetic variants which are involved in stress resilience are still unclear. The present study aimed to evaluate the associations between variants in dopaminergic pathway genes with stress resilience. Subjects of the present study were divided into four groups. Group A included persons with normal reactions to major life events stressors; group B included persons with an acute stress reaction to major life events stressor; group C included persons with normal reactions to Crises/catastrophes stressors, and group D included persons with an acute stress reaction to Crises/catastrophes stressors. DNA was extracted from the subject's blood, and the entire length of 14 genes DRD1, DRD2, DRD3, DRD4, DRD5, COMT, DBH, TH, MAOA, DDC, DAT, 5-HTT, BDNF, and GDNF were sequenced by automated sequencers ABI 3700. Results showed 24 point mutations in 12 genes, including 16 SNPs and six novel mutations, which were significantly correlated to low-stress resilience. Most of the SNPs were known as risk alleles in psychiatric disorders. Several associations were found between genetic variants and psychological characteristics. Findings suggest dopaminergic as an important pathway in stress and stress resilience also indicated shared genetic bases between low-stress resilience and several psychiatric disorders.https://doi.org/10.1371/journal.pone.0256285
spellingShingle Esfandiar Azadmarzabadi
Arvin Haghighatfard
Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
PLoS ONE
title Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
title_full Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
title_fullStr Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
title_full_unstemmed Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
title_short Detection of six novel de novo mutations in individuals with low resilience to psychological stress.
title_sort detection of six novel de novo mutations in individuals with low resilience to psychological stress
url https://doi.org/10.1371/journal.pone.0256285
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