PTSD and dopaminergic genes, DRD2 and DAT, in multigenerational families exposed to the Spitak earthquake.
Psychiatry Res
; 178(3): 507-10, 2010 Aug 15.
Article
em En
| MEDLINE
| ID: mdl-20554017
ABSTRACT
The objective of this study was to assess the generality of the association of DRD2 and DAT genes and Post-Traumatic Stress Disorder (PTSD) diagnosis/symptom severity. Two hundred ethnic Armenians from 12 multigenerational families exposed to the catastrophic 1988 Spitak earthquake were studied. Common polymorphisms A1/A2 alleles of the DRD2 and '9' repeat allele of DAT gene were genotyped. Heritability, association and linkage were assessed using variance component genetic analyses. After adjusting for the covariates, the heritabilities of PTSD diagnosis and B and C category symptoms were 0.37, 0.75 and 0.39 respectively. Category D symptoms were not heritable. Neither the DRD2 nor the DAT polymorphisms explained the variation seen in PTSD diagnosis, total PTSD symptom severity, and categories B and C symptom severities. These findings contradict prior reports of positive associations between both DRD2 and DAT, and PTSD.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transtornos de Estresse Pós-Traumáticos
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Saúde da Família
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Receptores de Dopamina D2
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Predisposição Genética para Doença
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Proteínas da Membrana Plasmática de Transporte de Dopamina
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Terremotos
Tipo de estudo:
Diagnostic_studies
Limite:
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article