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The dopamine D2 receptor gene and depressive and anxious symptoms in childhood: Associations and evidence for gene-environment correlation and gene-environment interaction
Authors
Sara J. Bufferd
Haroon I. Comardelle
+17 more
Sinead Currie
Caitlin Denton
Lea R. Dougherty
C. Emily Durbin
Margaret W. Dyson
Cheryce L. Harrison
Elizabeth P. Hayden
Daniel N. Klein
Tayla Lamerton
Rebecca S. Laptook
Gabriela P. Mena
Lisa Moran
Michelle Mottola
Taniya S. Nagpal
Thomas M. Olino
Stephanie Schoeppe
Lisa Vincze
Publication date
1 December 2010
Publisher
Scholarship@Western
Abstract
ObjectiveS: Research implicates the A1 allele of the dopamine D2 receptor gene (DRD2) Taq1A polymorphism in the development of depression and anxiety. Furthermore, recent papers suggest that children with A1 allele of this gene may receive less positive parenting, and that the effects of this gene on child symptoms may be moderated by parenting. We sought to replicate and extend these findings using behavioral measures in a nonclinical sample of young children. Methods: In a sample of 473 preschool-aged children and their mothers, structured clinical interview measures and maternal reports of child symptoms were collected, and standardized observations of parent-child interactions were conducted. Results: An association was detected between the DRD2 A1 allele and symptoms of depression and anxiety indexed using interview and parent report methods. As found in previous reports, children with the DRD2 A1 allele received less supportive parenting and displayed higher levels of negative emotionality during parent-child interactions. Tests of mediation and moderation were conducted. Conclusion: We found associations between the DRD2 A1 allele and early-emerging anxious and depressive symptoms in a community sample of preschool-aged children, and evidence of a gene-environment correlation and moderation of the main effect of child genotype on child symptoms by parenting. © 2010 Wolters Kluwer Health | Lippincott Williams & Wilkins
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oai:ir.lib.uwo.ca:paedpub-3611
Last time updated on 08/10/2022