Evidence map›Paper›PMID 18319075›Full record

ArticleAmerican journal of human genetics2008

Epigenomic profiling reveals DNA-methylation changes associated with major psychosis.

Jonathan Mill, Thomas Tang, Zachary Kaminsky, Tarang Khare, Simin Yazdanpanah, Luigi Bouchard, Peixin Jia, Abbas Assadzadeh, James Flanagan, Axel Schumacher and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 355 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
355citing papers in PubMed, 5 pooled it
30.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

355 citing papers in PubMed, 5 syntheses or guidelines pooled it, 774 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
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  5. Pooled it
  6. Trial
  7. Trial
  8. Review
  9. Article
  10. Regulation ofInternational journal of molecular sciences · 2025
    Review
  11. International journal of molecular sciences · 2025
    Article
  12. DNA Methylation in Long-Term Memory.Physiology (Bethesda, Md.) · 2025
    Review
  13. Review
  14. Epigenetic Control in Schizophrenia.Sub-cellular biochemistry · 2025
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

295 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 4 countries.

Jonathan MillKrembil Family Epigenetic Laboratory, Centre for Addiction and Mental Health, 250 College Street, Toronto, Ontario, M5T 1R8, Canada.
Thomas Tang
Zachary Kaminsky
Tarang Khare
Simin Yazdanpanah
Luigi Bouchard
Peixin Jia
Abbas Assadzadeh
James Flanagan
Axel Schumacher
Sun-Chong Wang
Arturas Petronis
Centre for Addiction and Mental Health · CANational Central University · TWUniversité Laval · CAUniversity College London · GB

Funding

DNA METHYLOME ANALYSIS IN BIPOLAR DISORDERR01MH088413 · NIMH · CENTRE FOR ADDICTION AND MENTAL HEALTH · PI PETRONIS, ART · 2009 to 2013
$4.1M
Molecular Epigenetic Studies of Major DepressionR01MH074127 · NIMH · CENTRE FOR ADDICTION AND MENTAL HEALTH · PI PETRONIS, ART · 2005 to 2009
$1.3M
NIMH NIH HHS R01 MH074127NIMH NIH HHS R01 MH074127-01NIMH NIH HHS R01 MH088413
6 · The paper itself

Abstract

Epigenetic misregulation is consistent with various non-Mendelian features of schizophrenia and bipolar disorder. To date, however, few studies have investigated the role of DNA methylation in major psychosis, and none have taken a genome-wide epigenomic approach. In this study we used CpG-island microarrays to identify DNA-methylation changes in the frontal cortex and germline associated with schizophrenia and bipolar disorder. In the frontal cortex we find evidence for psychosis-associated DNA-methylation differences in numerous loci, including several involved in glutamatergic and GABAergic neurotransmission, brain development, and other processes functionally linked to disease etiology. DNA-methylation changes in a significant proportion of these loci correspond to reported changes of steady-state mRNA level associated with psychosis. Gene-ontology analysis highlighted epigenetic disruption to loci involved in mitochondrial function, brain development, and stress response. Methylome network analysis uncovered decreased epigenetic modularity in both the brain and the germline of affected individuals, suggesting that systemic epigenetic dysfunction may be associated with major psychosis. We also report evidence for a strong correlation between DNA methylation in the MEK1 gene promoter region and lifetime antipsychotic use in schizophrenia patients. Finally, we observe that frontal-cortex DNA methylation in the BDNF gene is correlated with genotype at a nearby nonsynonymous SNP that has been previously associated with major psychosis. Our data are consistent with the epigenetic theory of major psychosis and suggest that DNA-methylation changes are important to the etiology of schizophrenia and bipolar disorder.

Indexed as

DNA MethylationEpigenesis, GeneticAdultBase SequenceBipolar DisorderBrainCpG IslandsFemaleGenesHumansMaleMiddle AgedMolecular Sequence DataOligonucleotide Array Sequence AnalysisSchizophrenia

Identifiers

PMID18319075
PMCPMC2427301
OpenAlexW2121471393

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.