Abstract:
:Research on adolescent and adult populations has linked depression to variation in several monoaminergic genes, but genetic association studies on depression in children are limited. Additionally, few studies have investigated whether stressors occurring very early in development moderate the influence of certain genes on depression. The aim of this study was to investigate whether single nucleotide polymorphisms (SNPs) from monoaminergic genes interacted with measures of early life stress to influence depressive symptoms in children. Participants were members of the Auckland Birthweight Collaborative cohort. Small for gestational age (SGA) and maternal stress during pregnancy were measured at birth and used as indicators of early life stress. At age 11, depressive symptoms were measured using the Centre for Epidemiological Studies Depression Scale for Children (CES-DC) and DNA samples were collected for genotyping. A two-way ANOVA revealed that SGA and a SNP from the dopamine transporter gene DAT1 had an interactive effect on children's depressive symptoms. Specifically, symptoms were greater in children born SGA who are T homozygous for the rs1042098 SNP. These findings suggest that adverse intrauterine environments leading to low birth weight also seem to exacerbate the effects of certain DAT1 variants on depression.
journal_name
J Affect Disordjournal_title
Journal of affective disordersauthors
D'Souza S,Thompson JM,Slykerman R,Marlow G,Wall C,Murphy R,Ferguson LR,Mitchell EA,Waldie KEdoi
10.1016/j.jad.2016.03.023subject
Has Abstractpub_date
2016-06-01 00:00:00pages
151-8eissn
0165-0327issn
1573-2517pii
S0165-0327(15)30343-8journal_volume
197pub_type
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