Cited by 498Genetic Associations and EpidemiologyTreatment of Major DepressionNeurotransmitter Receptor Influence on Behavior

Overview of the Genetics of Major Depressive Disorder

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Lohoff, Falk W.·2010·Current Psychiatry Reports

Abstract

Major depressive disorder (MDD) is a common psychiatric illness with high levels of morbidity and mortality. Despite intensive research during the past several decades, the neurobiological basis and pathophysiology of depressive disorders remain unknown. Genetic factors play important roles in the development of MDD, as indicated by family, twin, and adoption studies, and may reveal important information about disease mechanisms. This article describes recent developments in the field of psychiatric genetics, with a focus on MDD. Early twin studies, linkage studies, and association studies are discussed. Recent findings from genome-wide association studies are reviewed and future directions discussed. Despite all efforts, thus far, no single genetic variation has been identified to increase the risk of depression substantially. Genetic variants are expected to have only small effects on overall disease risk, and multiple genetic factors in conjunction with environmental factors are likely necessary for the development of MDD. Future large-scale studies are needed to dissect this complex phenotype and to identify pathways involved in the etiology of MDD.

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Authors
Lohoff, F. W.
Affiliations
University of Pennsylvania (US)
Corresponding author
Lohoff, Falk W.
Venue
Current Psychiatry Reports
Published
2010-09-17
Volume
12
Issue
6
Pages
539-546
ISSN
  • 1523-3812 (ISSN-L)
  • 1535-1645
OpenAlex
W2046955370
Cited by
498
References
62
Citations by year
2026: 15 · 2025: 24 · 2024: 24 · 2023: 62 · 2022: 45 · 2021: 27 · 2020: 65 · 2019: 26 · 2018: 38 · 2017: 39 · 2016: 28 · 2015: 25 · 2014: 21 · 2013: 17 · 2012: 31
FWCI
2.00
Type
journal article
Language
en
Open access
Locations
  • Current Psychiatry Reports (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (K08MH080372)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
major depressive disorder, genetic susceptibility, psychiatric genetics, twin studies, family studies, adoption studies, genetic linkage, genome-wide association study, genetic variants, gene-environment interaction, depression pathophysiology
MeSH terms
Depressive Disorder, Major, Major Depressive Disorder, Humans, Genetic Linkage, Tryptophan Hydroxylase, Twin Studies as Topic, Brain-Derived Neurotrophic Factor, Genetic Predisposition to Disease, Receptor, Serotonin, 5-HT2A, Serotonin Plasma Membrane Transport Proteins, Genetic Association Studies

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