Evidence map›Paper›PMID 23065263›Full record

ArticleMolecular biology reports2012

DNA methylation and expression profiles of the brain-derived neurotrophic factor (BDNF) and dopamine transporter (DAT1) genes in patients with schizophrenia.

Dor Mohammad Kordi-Tamandani, Roya Sahranavard, Adam Torkamanzehi

Abstract read
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In one paragraph

Article in Molecular biology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 5 pooled it
2.3field-weighted citation impact, top 12% 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

31 citing papers in PubMed, 5 syntheses or guidelines pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Epigenetic Control in Schizophrenia.Sub-cellular biochemistry · 2025
    Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Methylation ofFrontiers in integrative neuroscience · 2021
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Glioma in Schizophrenia: Is the Risk Higher or Lower?Frontiers in cellular neuroscience · 2018
    Review
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

3 authors at 1 institution in 1 country.

Dor Mohammad Kordi-TamandaniDepartment of Biology, University of Sistan and Baluchestan, P.O. Box 98155-987, Zahedan, Iran. dor_kordi@yahoo.com
Roya Sahranavard
Adam Torkamanzehi
University of Sistan and Baluchestan · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Methylation and expression profile of CpG islands were examined in the promoters of the brain-derived neurotrophic factor (BDNF) and dopamine transporter (DAT1) genes. These are well known to be involved in the pathophysiology of psychiatric disorders such as schizophrenia. Genomic DNA was extracted from peripheral blood of 80 patients with schizophrenia and 71 healthy controls. Methylation pattern was studied by Methylation-Specific PCR. RNA expression analysis was done on extracted RNA from blood samples from patients suffering from schizophrenia (n = 17) and healthy controls (n = 17). Frequency of the BDNF gene methylation was highlighted as a statistically significant relationship between cases and controls regarding decreased risk of disease in comparison to unmethylated patterns (OR = 0.24; 95 % CI = 1.11-0.50; P = 0.00007). For the DAT1 gene, this relationship was insignificant in 61 cases (76.25 %) and 52 controls (73.23 %) (OR = 1.17; 95 % CI = 0.53-2.61). Estimates of relative gene expression revealed a statistically significant association of the BDNF gene between schizophrenic patients and healthy controls (Mean ± SD: 13.3920 ± 15.19 and 0.437 ± 0.328, P = 0.0001) respectively; however, it was not significant for the DAT1 gene. This first hand evidence, regarding BDNF and DAT1 gene methylation and their expression profile with risk of schizophrenia, indicated a significant function for the BDNF gene in the development of schizophrenia. However, further populations with large sample sizes need to be studied to verify the exact role of BDNF in mental disorders such as schizophrenia.

Indexed as

Gene Expression ProfilingGene Expression RegulationBrain-Derived Neurotrophic FactorCase-Control StudiesDNA MethylationDopamine Plasma Membrane Transport ProteinsHumansMiddle AgedSchizophreniaYoung AdultBDNF protein, humanBrain-Derived Neurotrophic FactorDopamine Plasma Membrane Transport ProteinsSLC6A3 protein, human

Identifiers

PMID23065263
OpenAlexW2051721448

What OpenQuestion holds

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Registered trials

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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.