Cited by 1,655Neurotransmitter Receptor Influence on BehaviorGenetic Associations and EpidemiologyStress Responses and Cortisol

Interaction Between the Serotonin Transporter Gene (5-HTTLPR), Stressful Life Events, and Risk of Depression: A Meta-analysis

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Risch, Neil, Herrell, Richard, Lehner, Thomas, Liang, Kung-Yee, Eaves, Lindon, Hoh, Josephine, Griem, Andrea, Kovacs, Maria +2 more·2009·JAMA

Abstract

CONTEXT: Substantial resources are being devoted to identify candidate genes for complex mental and behavioral disorders through inclusion of environmental exposures following the report of an interaction between the serotonin transporter linked polymorphic region (5-HTTLPR) and stressful life events on an increased risk of major depression. OBJECTIVE: To conduct a meta-analysis of the interaction between the serotonin transporter gene and stressful life events on depression using both published data and individual-level original data. DATA SOURCES: Search of PubMed, EMBASE, and PsycINFO databases through March 2009 yielded 26 studies of which 14 met criteria for the meta-analysis. STUDY SELECTION: Criteria for studies for the meta-analyses included published data on the association between 5-HTTLPR genotype (SS, SL, or LL), number of stressful life events (0, 1, 2, > or = 3) or equivalent, and a categorical measure of depression defined by the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) or the International Statistical Classification of Diseases, 10th Revision (ICD-10) or use of a cut point to define depression from standardized rating scales. To maximize our ability to use a common framework for variable definition, we also requested original data from all studies published prior to 2008 that met inclusion criteria. Of the 14 studies included in the meta-analysis, 10 were also included in a second sex-specific meta-analysis of original individual-level data. DATA EXTRACTION: Logistic regression was used to estimate the effects of the number of short alleles at 5-HTTLPR, the number of stressful life events, and their interaction on depression. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated separately for each study and then weighted averages of the individual estimates were obtained using random-effects meta-analysis. Both sex-combined and sex-specific meta-analyses were conducted. Of a total of 14,250 participants, 1769 were classified as having depression; 12,481 as not having depression. RESULTS: In the meta-analysis of published data, the number of stressful life events was significantly associated with depression (OR, 1.41; 95% CI,1.25-1.57). No association was found between 5-HTTLPR genotype and depression in any of the individual studies nor in the weighted average (OR, 1.05; 95% CI, 0.98-1.13) and no interaction effect between genotype and stressful life events on depression was observed (OR, 1.01; 95% CI, 0.94-1.10). Comparable results were found in the sex-specific meta-analysis of individual-level data. CONCLUSION: This meta-analysis yielded no evidence that the serotonin transporter genotype alone or in interaction with stressful life events is associated with an elevated risk of depression in men alone, women alone, or in both sexes combined.

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  • Risch et al. (2009) meta-analysis examined gene-environment interaction between stressful life events and 5-HTTLPR on depression using 14 studies (N=14,250), with just under half focusing on early life stress, and concluded there was no support for an interaction effect.

    “a recent meta-analysis by Risch et al. (2009) examined GxE between stressful life events and 5-HTTLPR on depression using 14 studies (N=14,250). Just under half of the included studies focused on the effects of ELS. The authors concluded that there was no support for an interaction effect”
  • The MDD serotonin transporter gene-environment interaction association did not replicate in an independent but similar study from the same geographic region.

    “This association did not replicate in an independent but similar study from the same geographic region, casting particular doubt on the reported association. 115”

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1 of the 69 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. [14]Gene X environment interactions and developmental psychopathology National Institute of Mental Health Workshop Research Challenges and Opportunities June 27 28 2006 Washington, DC
  2. [61]Breakthrough of the year: the runners-up Science 2003 302 5653 2039 2045 14700029

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Authors
Risch, N., Herrell, R., Lehner, T., Liang, K.-Y., Eaves, L., Hoh, J., Griem, A., Kovacs, M., Ott, J., & Merikangas, K. R.
Affiliations
  • University of California, San Francisco (US)
  • National Institutes of Health (US)
Venue
JAMA
Published
2009-06-17
Volume
301
Issue
23
Pages
2462
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2042170262
Cited by
1,655
References
69
Citations by year
2026: 14 · 2025: 18 · 2024: 12 · 2023: 33 · 2022: 21 · 2021: 49 · 2020: 68 · 2019: 64 · 2018: 70 · 2017: 89 · 2016: 114 · 2015: 138 · 2014: 130 · 2013: 147 · 2012: 176
FWCI
94.79
Type
journal article
Language
en
Open access
Locations
  • JAMA (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000005)
  • National Institute of Mental Health (Z01MH002804)
  • National Center for Advancing Translational Sciences
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
5-HTTLPR, serotonin transporter gene, life events, major depressive disorder, gene-environment interaction, short allele, depression risk, sex differences, genetic susceptibility, microdata
MeSH terms
Depressive Disorder, Major, Major Depressive Disorder, Female, Genotype, Humans, Life Change Events, Male, Risk Factors, Stress, Psychological, Serotonin Plasma Membrane Transport Proteins

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