Evidence map›Paper›PMID 22198720›Full record

ArticleHuman genetics2012

Effects of MAOA promoter methylation on susceptibility to paranoid schizophrenia.

Yanbo Chen, Jiexu Zhang, Li Zhang, Yan Shen, Qi Xu

Abstract read
PubMed Publisher
In one paragraph

Article in Human genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 16% 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Type A monoamine oxidase; its unique role in mood, behavior and neurodegeneration.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  6. Methylation of theAnnals of translational medicine · 2020
    Article
  7. Epigenetic signature of MAOA and MAOB genes in mental disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2018
    Review
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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

5 authors at 1 institution in 1 country.

Yanbo ChenNational Lab of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, No 5 Dong Dan San Tiao, Beijing 100005, PR China.
Jiexu Zhang
Li Zhang
Yan Shen
Qi Xu
Chinese Academy of Medical Sciences & Peking Union Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was undertaken to analyze DNA methylation profiling at the monoamine oxidase A (MAOA) locus, in order to determine whether abnormal DNA methylation is involved in the development of schizophrenia. We recruited a total of 371 patients with paranoid schizophrenia (199 males and 172 females) and 288 unrelated control subjects (123 males and 165 females) for analysis of DNA methylation. Diagnosis was made based on the Structured Clinical Interview for DSM-VI. Genomic DNA extracted from peripheral blood was chemically modified using bisulfite, and DNA methylation profiles of the MAOA promoter were determined by BSP-sequencing. DNA methylation ratios of individual CpG residues and overall methylation ratios were measured on each subject. The results showed that there was no significant difference in overall DNA methylation ratios between patients and controls either in the female group (P = 0.42) or in the male group (P = 0.24). Of 15 CpG residues that showed significant differences in DNA methylation status between the patient group and the control group in females, eight of which had an increased level and seven, a decreased level, with a combined P value of 1 (df = 160). In male subjects, however, six individual CpG residues showed an increased methylation level with a combined P value of 5.80E-35 (df = 158). In conclusion, abnormalities of DNA methylation at the MAOA promoter may be associated with schizophrenia in males.

Indexed as

DNA MethylationPromoter Regions, GeneticCpG IslandsFemaleGenetic Predisposition to DiseaseHumansMaleMonoamine OxidaseSchizophrenia, ParanoidSex CharacteristicsMonoamine Oxidase

Identifiers

PMID22198720
OpenAlexW2001228388

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.