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Exploring epistasis in candidate genes for antisocial personality disorder.
MedLine Citation:
PMID:  21519306     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: To identify and characterize high-order gene-to-gene interactions in antisocial personality disorder (ASPD).
METHODS: Participants for case-control study were selected from the inmate male population in Bellavista prison from Medellin. The study included 310 individuals with ASPD and 200 with no ASPD. Diagnoses were made according to a best-estimate procedure based on a semistructured interview (diagnostic interview for genetic studies 3.0). We genotyped some single-nucleotide polymorphisms in candidate genes with main serotonin pathway effects. The gene-gene interaction was examined using the multifactor dimensionality reduction method version 2.0.α. We assessed model sizes of 2 and 3 loci and counted the number of replicates that contained the causal loci in the final best model that was identified using 10-fold cross validation.
RESULTS: We find epistatic interaction with catechol-O-methyl transferase (COMT), tryptophan hydroxylase, and 5-HTR2A (serotonin receptor) with ASPD. This data supports an important role of polymorphism in serotonin receptors and low enzyme activity of COMT for susceptibility to ASPD.
CONCLUSION: This study suggests that gene interactions between genetic variants in COMT, 5-HTR2A and tryptophan hydroxylase gene would be associated with ASPD and influence the dopamine rewards pathways and modulate serotonin levels in ASPD.
Authors:
Jorge Mauricio Cuartas Arias; Carlos A Palacio Acosta; Jenny Garcia Valencia; Gabriel J Montoya; Juan C Arango Viana; Omer Campo Nieto; Andrés F Flórez; Beatriz E Camarena Medellin; Winston Rojas Montoya; Carlos A Lopez Jaramillo; Javier Gutierrez Achury; Carlos Cruz Fuentes; Gabriel Bedoya Berrio; Andres Ruiz-Linares
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Psychiatric genetics     Volume:  21     ISSN:  1473-5873     ISO Abbreviation:  Psychiatr. Genet.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-04-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9106748     Medline TA:  Psychiatr Genet     Country:  England    
Other Details:
Languages:  eng     Pagination:  115-24     Citation Subset:  IM    
Affiliation:
aDepartment of Psychiatry, Faculty of Medicine bMolecular Genetics Group (GENMOL), Biology Institute cProgram for the Study and Control of Tropical Diseases (PECET), Universidad de Antioquia, Medellin, Colombia dNational Institute of Psychiatry, Ramón de la Fuente Muñiz, D.F. Mexico eDepartment of Genetics, Evolution and Environment, University College, London, UK.
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