Cited by 220Epigenetics and DNA MethylationNeurotransmitter Receptor Influence on BehaviorStress Responses and Cortisol

Genetic and epigenetic associations of MAOA and NR3C1 with depression and childhood adversities

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Melas, Philippe A., Wei, Yabin, Wong, Chloe C. Y., Sjöholm, Louise K., Åberg, Elin, Mill, Jonathan, Schalling, Martin, Forsell, Yvonne +1 more·2013·International Journal of Neuropsychopharmacology

Abstract

Monoamine oxidase A (MAOA) harbours a polymorphic upstream variable-number tandem repeat (u-VNTR). The MAOA-L allele of the u-VNTR leads to decreased gene expression levels in vitro and has been found to increase the risk of conduct disorder in males with childhood adversities. Early-life adversities have been associated with hypermethylation of the glucocorticoid receptor (NR3C1). In this study, we first performed a genetic association analysis of the MAOA u-VNTR using individuals with depression (n = 392) and controls (n = 1276). Next, DNA methylation analyses of MAOA and NR3C1 were performed using saliva samples of depressed and control subgroups. Adult MAOA-L females with childhood adversities were found to have a higher risk of developing depression (p = 0.006) and overall MAOA methylation levels were decreased in depressed females compared to controls (mean depressed, 42% vs. mean controls, 44%; p = 0.04). One specific childhood adversity [early parental death (EPD)] was associated with hypermethylation of NR3C1 close to an NGFI-A binding site (mean EPD, 19% vs. mean non-EPD, 14%; p = 0.005). Regression analysis indicated that this association may be mediated by the MAOA-L allele (adjusted R2 = 0.24, ANOVA: F = 23.48, p < 0.001). Conclusively: (1) depression in females may result from a gene × childhood-adversity interaction and/or a dysregulated epigenetic programming of MAOA; (2) childhood-adversity subtypes may differentially impact DNA methylation at NR3C1; (3) baseline MAOA-genotypic variations may affect the extent of NR3C1 methylation.

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Crossref · 10.1017/s1461145713000102

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  • Overall methylation of MAOA was reduced in depressed patients.

    “and the overall methylation of MAOA was reduced in depressed patients (130).”

    From Epigenetic Modifications in Stress Response Genes Associated With Childhood Trauma (2019) · cites this paper as [130]

    The results section on MAOA hypomethylation in females with depression reports lower average methylation across the measured MAOA region in depressed women than in female controls (42% versus 44%; p = 0.04). The claim omits that the finding was limited to females and to a measured region spanning the first exon–intron junction, rather than MAOA methylation generally in all depressed patients. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Lower MAOA activity, associated with higher levels of relevant neurotransmitters, has been associated with increased risk of conduct disorder and antisocial behavior.

    “Lower MAOA activity, which is associated with higher levels of the relevant neurotransmitters, has been associated with increased risk of conduct disorder and antisocial behavior (130, 131).”

    From Epigenetic Modifications in Stress Response Genes Associated With Childhood Trauma (2019) · cites this paper as [130]

    The Introduction and ‘Increased risk of depression in MAOA-L females with childhood adversities’ section associate the low-transcription MAOA-L allele with conduct, aggressive and antisocial behaviour specifically in males exposed to childhood maltreatment. The same section describes increased neurotransmitter levels as probable, while Limitations says reduced expression has been established in vitro only. The claim omits those conditions and presents the neurotransmitter link more definitively than the paper does. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Carriers of lower-MAOA-activity variants (higher risk alleles such as 3.5) of the 30 bp u-VNTR had higher risk of depression with histories of childhood trauma in females compared to those without trauma histories.

    “carriers of the lower-MAOA-activity variants (i.e., the higher risk alleles such as 3.5) had a higher risk of depression with histories of childhood trauma in females compared to those who without trauma histories”

    From Epigenetic Modifications in Stress Response Genes Associated With Childhood Trauma (2019) · cites this paper as [130]

    The MAOA-L gene × environment section reports increased depression risk among females with childhood adversities, and Fig. 1 compares MAOA-L females with and without adversities. The determination-of-repeats section identifies 3.5 repeats as the MAOA-L allele. However, the Statistical analyses section defines the female MAOA-L group as homozygous for that allele (L/L), not all carriers; heterozygous females were grouped with MAOA-H. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • A variant in the MAOA gene is associated with differential NR3C1 methylation.

    “A variant in MAOA gene is associated with differential NR3C1 methylation (130).”

    From Epigenetic Modifications in Stress Response Genes Associated With Childhood Trauma (2019) · cites this paper as [130]

    The section ‘Early parental death is associated with NR3C1 hypermethylation’ reports higher NR3C1 methylation among MAOA-L individuals with early parental death, but not among MAOA-L individuals without it. The claim omits that childhood-adversity condition and makes the association sound general. Page numbers are not provided in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Parental death was associated with hypermethylation of NR3C1 CpGs close to the NGFI-A binding site, in association with the L-allele (3.5 repeats) of the MAOA u-VNTR in salivary DNA samples.

    “one specific type of childhood trauma (parental death) was associated with hypermethylation of the NR3C1 CpGs close to the NGFI-A binding site, at, in association with the L-allele (3.5 repeats) of the MAOA u-VNTR in salivary DNA samples (130).”

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Authors
Melas, P. A., Wei, Y., Wong, C. C. Y., Sjöholm, L. K., Åberg, E., Mill, J., Schalling, M., Forsell, Y., & Lavebratt, C.
Affiliations
  • Karolinska University Hospital (SE)
  • Department of Molecular Medicine and Surgery, Neurogenetics Unit, Karolinska Institutet, Stockholm, Sweden
  • King's College London (GB)
  • Karolinska Institutet (SE)
Corresponding author
Lavebratt, Catharina
Venue
International Journal of Neuropsychopharmacology
Published
2013-08-01
Volume
16
Issue
7
Pages
1513-1528
ISSN
  • 1461-1457 (ISSN-L)
  • 1469-5111
OpenAlex
W2008523946
Cited by
220
References
78
Citations by year
2026: 2 · 2025: 9 · 2024: 11 · 2023: 14 · 2022: 17 · 2021: 18 · 2020: 23 · 2019: 16 · 2018: 22 · 2017: 24 · 2016: 20 · 2015: 21 · 2014: 20 · 2013: 3
FWCI
9.55
Type
journal article
Language
en
Open access
Locations
  • The International Journal of Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Bodossaki Foundation
  • Karolinska Institutet
  • Stockholms Läns Landsting
  • Vetenskapsrådet (2010-03631, 2008-03307, 2009-05546, 2011-04807)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
monoamine oxidase A, NR3C1, glucocorticoid receptor, DNA methylation, depression, childhood adversity, gene-environment interaction, epigenetic programming, sex differences
MeSH terms
Adult, Aged, Child, Depression, Environment, Female, Humans, Life Change Events, Male, Middle Aged, Monoamine Oxidase, Receptors, Glucocorticoid, Sex Factors, Chi-Square Distribution, Minisatellite Repeats, CpG Islands, DNA Methylation, Genetic Association Studies, Epigenomics

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