Influence of life stress on depression: moderation by a polymorphism in the 5-HTT gene.
Journal Article (Journal Article)
In a prospective-longitudinal study of a representative birth cohort, we tested why stressful experiences lead to depression in some people but not in others. A functional polymorphism in the promoter region of the serotonin transporter (5-HT T) gene was found to moderate the influence of stressful life events on depression. Individuals with one or two copies of the short allele of the 5-HT T promoter polymorphism exhibited more depressive symptoms, diagnosable depression, and suicidality in relation to stressful life events than individuals homozygous for the long allele. This epidemiological study thus provides evidence of a gene-by-environment interaction, in which an individual's response to environmental insults is moderated by his or her genetic makeup.
Full Text
Duke Authors
Cited Authors
- Caspi, A; Sugden, K; Moffitt, TE; Taylor, A; Craig, IW; Harrington, H; McClay, J; Mill, J; Martin, J; Braithwaite, A; Poulton, R
Published Date
- July 2003
Published In
Volume / Issue
- 301 / 5631
Start / End Page
- 386 - 389
PubMed ID
- 12869766
Electronic International Standard Serial Number (EISSN)
- 1095-9203
International Standard Serial Number (ISSN)
- 0036-8075
Digital Object Identifier (DOI)
- 10.1126/science.1083968
Language
- eng