Evidence map›Paper›PMID 25881116›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2015

Hypermethylation of BDNF and SST Genes in the Orbital Frontal Cortex of Older Individuals: A Putative Mechanism for Declining Gene Expression with Age.

Brandon C McKinney, Chien-Wei Lin, Hyunjung Oh, George C Tseng, David A Lewis, Etienne Sibille

Open access · bronzeAbstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Aging biomarkers and the brain.Seminars in cell & developmental biology · 2021
    Review
  9. Article
  10. Article
  11. AgeGuess, a Methylomic Prediction Model for Human Ages.Frontiers in bioengineering and biotechnology · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. The Role of BDNF in Age-Dependent Changes of Excitatory and Inhibitory Synaptic Markers in the Human Prefrontal Cortex.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Article
  18. Article
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

6 authors at 2 institutions in 2 countries.

Brandon C McKinneyDepartment of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, PA, USA.
Chien-Wei LinDepartment of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA.
Hyunjung OhDepartment of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, PA, USA.
George C TsengDepartment of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA.
David A LewisDepartment of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, PA, USA.
Etienne SibilleDepartment of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, PA, USA.
University of Pittsburgh · USMental Health Research Canada · CA

Funding

Training for Transformative Discovery in PsychiatryT32MH016804 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SWEET, ROBERT A · 1985 to 2025
$6.2M
Transcriptome analysis in major depressionR01MH077159 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MCCLUNG, COLLEEN A, SIBILLE, ETIENNE L · 2007 to 2015
$3.2M
Molecular Aging of the Human Brain: Genetic Modulation and Functional OutcomesR01MH093723 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SIBILLE, ETIENNE L · 2011 to 2015
$2.6M
Molecular characterization of a corticolimbic network in depressionK02MH084060 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SIBILLE, ETIENNE L · 2009 to 2013
$589k
NIMH NIH HHS K02 MH084060NIMH NIH HHS R01 MH077159NIMH NIH HHS R01MH077159NIMH NIH HHS R01 MH093723NIMH NIH HHS R01MH093723NIMH NIH HHS T32 MH016804
6 · The paper itself

Abstract

Expression of brain-derived neurotrophic factor (BDNF) and somatostatin (SST) mRNAs in the brain decreases progressively and robustly with age, and lower BDNF and SST expression in the brain has been observed in many brain disorders. BDNF is known to regulate SST expression; however, the mechanisms underlying decreased expression of both genes are not understood. DNA methylation (DNAm) is an attractive candidate mechanism. To investigate the contribution of DNAm to the age-related decline in BDNF and SST expression, the Illumina Infinium HumanMethylation450 Beadchip Array was used to quantify DNAm of BDNF (26 CpG loci) and SST (9 CpG loci) in the orbital frontal cortices of postmortem brains from 22 younger (age <42 years) and 22 older individuals (age >60 years) with known age-dependent BDNF and SST expression differences. Relative to the younger individuals, 10 of the 26 CpG loci in BDNF and 8 of the 9 CpG loci in SST were significantly hypermethylated in the older individuals. DNAm in BDNF exons/promoters I, II, and IV negatively correlated with BDNF expression (r=-0.37, p<0.05; r=-0.40, p<0.05; r=-0.24, p=0.07), and DNAm in SST 5' UTR and first exon/intron negatively correlated with SST expression (r=-0.48, p<0.01; r=-0.63, p<0.001), respectively. An expanded set of BDNF- and GABA-related genes exhibited similar age-related changes in DNAm and correlation with gene expression. These results suggest that DNAm may be a proximal mechanism for decreased expression of BDNF, SST, and other BDNF- and GABA-related genes with brain aging and, by extension, for brain disorders in which their expression is decreased.

Indexed as

AdultAgedAgingBrainBrain-Derived Neurotrophic FactorCohort StudiesDNA MethylationFemaleGene ExpressionGene Expression ProfilingHumansMaleMiddle AgedPrefrontal CortexRNA, MessengerSomatostatinBDNF protein, humanBrain-Derived Neurotrophic FactorRNA, MessengerSomatostatin

Identifiers

PMID25881116
PMCPMC4569950
OpenAlexW2009590968

What OpenQuestion holds

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Read underepoch 390

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.