Cited by 132Epigenetics and DNA MethylationAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesNeurotransmitter Receptor Influence on Behavior

Monoamine oxidase A gene DNA hypomethylation - A risk factor for panic disorder?

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Domschke, Katharina, Tidow, Nicola, Kuithan, Henriette, Schwarte, Kathrin, Klauke, Benedikt, Ambrée, Oliver, Reif, Andreas, Schmidt, Hartmut +4 more·2012·The International Journal of Neuropsychopharmacology

Abstract

The monoamine oxidase A (MAOA) gene has been suggested as a prime candidate in the pathogenesis of panic disorder. In the present study, DNA methylation patterns in the MAOA regulatory and exon 1/intron 1 region were investigated for association with panic disorder with particular attention to possible effects of gender and environmental factors. Sixty-five patients with panic disorder (44 females, 21 males) and 65 healthy controls were analysed for DNA methylation status at 42 MAOA CpG sites via direct sequencing of sodium bisulfate treated DNA extracted from blood cells. The occurrence of recent positive and negative life events was ascertained. Male subjects showed no or only very minor methylation with some evidence for relative hypomethylation at one CpG site in intron 1 in patients compared to controls. Female patients exhibited significantly lower methylation than healthy controls at 10 MAOA CpG sites in the promoter as well as in exon/intron 1, with significance surviving correction for multiple testing at four CpG sites (p≤0.001). Furthermore, in female subjects the occurrence of negative life events was associated with relatively decreased methylation, while positive life events were associated with increased methylation. The present pilot data suggest a potential role of MAOA gene hypomethylation in the pathogenesis of panic disorder particularly in female patients, possibly mediating a detrimental influence of negative life events. Future studies are warranted to replicate the present finding in independent samples, preferably in a longitudinal design.

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  • MAOA DNAm was negatively correlated to life events in a sample of Panic Disorder.

    “Moreover, MAOA DNAm was negatively correlated to life events in a sample of Panic Disorder (Domschke et al., 2012).”

    From Can epigenetics shine a light on the biological pathways underlying major mental disorders? (2022) · cites this paper as Domschke et al., 2012

    The “Mediating effect of life events on MAOA methylation” section reports that, among female patients with panic disorder, a higher percentage of negative life events was associated with lower methylation at one CpG site. The claim omits those qualifications: the paper does not report a negative correlation for life events generally or for average MAOA methylation across all sites. (LLM, conf=0.86)

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  • Comparing 44 female patients with panic disorder with 44 mentally healthy control probands showed a significantly lower average MAOA methylation in panic disorder, principally in CpG islands downstream of the uVNTR and within the first exon.

    “Comparing 44 female patients with panic disorder with 44 mentally healthy control probands showed a significantly lower average MAOA methylation in panic disorder, principally in CpG islands downstream of the uVNTR and within the first exon (Domschke et al., 2012)”

    From The applied implications of epigenetics in anxiety, affective and stress-related disorders - A review and synthesis on psychosocial stress, psychotherapy and prevention (2020) · cites this paper as Domschke et al., 2012

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  • MAOA methylation was not affected by age, smoking status or SSRI medication, while long uVNTR variants were associated with increased overall methylation in healthy controls.

    “While methylation was not affected by age, smoking status or selective serotonin-reuptake inhibitor (SSRI) medication, the long uVNTR variants were associated with increased overall methylation in healthy controls (Domschke et al., 2012)”

    From The applied implications of epigenetics in anxiety, affective and stress-related disorders - A review and synthesis on psychosocial stress, psychotherapy and prevention (2020) · cites this paper as Domschke et al., 2012

    The ‘Influence of age, smoking status, medication and MAOA VNTR’ section (page not provided) reports no significant effect of age, smoking, or antidepressant medication on average methylation in the female samples studied. Medication was mainly, but not exclusively, SSRIs; the paper did not report a separate SSRI analysis. The Discussion (page not provided) describes only a tendency toward increased overall methylation with longer VNTR alleles in healthy controls, so the claim states that association more firmly than the paper does. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The proportion of positive recent life events was significantly positively correlated with methylation at both genomic sites downstream of the uVNTR and within the first MAOA exon.

    “The proportion of positive recent life events was significantly positively correlated with methylation at both genomic sites, pointing towards a role of MAOA hypomethylation as an epigenetic correlate of susceptibility-increasing environmental experiences in the etiology of panic disorder (Domschke et al., 2012).”

    From The applied implications of epigenetics in anxiety, affective and stress-related disorders - A review and synthesis on psychosocial stress, psychotherapy and prevention (2020) · cites this paper as Domschke et al., 2012

    The ‘Mediating effect of life events on MAOA methylation’ section reports significant positive correlations at CpG sites in amplicons B and C. However, the site-location description in ‘Sample characteristics’ places the relevant amplicon C CpG 11 in intron 1, not exon 1; the reported amplicon B sites are in the promoter. The claim’s exon-1 location is therefore not supported. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Across female panic disorder patients and controls, the proportion of negative life events during the past year was significantly negatively correlated with CpG island methylation downstream of the uVNTR and within the first MAOA exon.

    “Most strikingly, across female panic disorder patients and controls the proportion of negative life events during the past year was significantly negatively correlated with CpG island methylation downstream of the uVNTR and within the first MAOA exon (Domschke et al., 2012).”

    From The applied implications of epigenetics in anxiety, affective and stress-related disorders - A review and synthesis on psychosocial stress, psychotherapy and prevention (2020) · cites this paper as Domschke et al., 2012

    The ‘Mediating effect of life events on MAOA methylation’ section reports significant negative correlations across female patients and controls at two specific CpG sites, one in amplicon B and one in amplicon C; it reports no association with average methylation across all sites. The ‘Samples’ section specifies different life-event periods: six months before disease onset for patients and 12 months before study inclusion for controls, not the past year for both groups. Page numbers are unavailable in our copy. (LLM, conf=0.90)

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Authors
Domschke, K., Tidow, N., Kuithan, H., Schwarte, K., Klauke, B., Ambrée, O., Reif, A., Schmidt, H., Arolt, V., Kersting, A., Zwanzger, P., & Deckert, J.
Affiliations
  • University of Münster (DE)
  • Leipzig University (DE)
  • University of Würzburg (DE)
Corresponding author
Domschke, Katharina
Venue
The International Journal of Neuropsychopharmacology
Published
2012-03-21
Volume
15
Issue
09
Pages
1217-1228
ISSN
  • 1461-1457 (ISSN-L)
  • 1469-5111
OpenAlex
W2100178612
Cited by
132
References
71
Citations by year
2026: 1 · 2025: 3 · 2024: 5 · 2023: 4 · 2022: 29 · 2021: 6 · 2020: 12 · 2019: 10 · 2018: 11 · 2017: 17 · 2016: 8 · 2015: 6 · 2014: 8 · 2013: 9 · 2012: 3
FWCI
3.34
Type
journal article
Language
en
Open access
Locations
  • The International Journal of Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, other-oa)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
Funders
Deutsche Forschungsgemeinschaft (TRR‐58, SFB TRR 58)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
monoamine oxidase A, MAOA gene, DNA hypomethylation, DNA methylation, panic disorder, sex differences, life events, promoter methylation, intron 1, CpG sites, epigenetics, genetic risk factors
MeSH terms
Adult, Base Sequence, Exons, Female, Humans, Life Change Events, Male, Molecular Sequence Data, Monoamine Oxidase, Mutagens, Pilot Projects, Promoter Regions, Genetic, Risk Factors, Sex Characteristics, Smoking, Sulfites, Polymerase Chain Reaction, Panic Disorder, Minisatellite Repeats, DNA Methylation, Diagnostic and Statistical Manual of Mental Disorders, Epigenesis, Genetic

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