Evidence map›Paper›PMID 22272625›Full record

ArticleCurrent Alzheimer research2012

Age-related increase in levels of 5-hydroxymethylcytosine in mouse hippocampus is prevented by caloric restriction.

Leonidas Chouliaras, Daniel L A van den Hove, Gunter Kenis, Stella Keitel, Patrick R Hof, Jim van Os, Harry W M Steinbusch, Christoph Schmitz, Bart P F Rutten

Open access · greenAbstract readComparative Study
In one paragraph

Article in Current Alzheimer research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Biomarkers of aging.Science China. Life sciences · 2023
    Review
  6. Article
  7. Caloric restriction induced epigenetic effects on aging.Frontiers in cell and developmental biology · 2022
    Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Review
  19. Article
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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

9 authors at 1 institution in 1 country.

Leonidas ChouliarasSchool for Mental Health and Neuroscience (MHeNS), Department of Psychiatry and Psychology, Faculty of Health, Medicine and Life Sciences, European Graduate School of Neuroscience (EURON), Maastricht University Medical Centre, Maastricht, The Netherlands.
Daniel L A van den Hove
Gunter Kenis
Stella Keitel
Patrick R Hof
Jim van Os
Harry W M Steinbusch
Christoph Schmitz
Bart P F Rutten
Maastricht University Medical Centre · NL

Funding

VESICULAR LOCALIZATION AND FUNCTION OF PRESENILIN 1 FRAGMENTP50AG005138 · NIA · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SCHIMMING, CORBETT · 1985 to 2019
$37.9M
NIA NIH HHS P50 AG005138NIA NIH HHS P50 AG05138
6 · The paper itself

Abstract

Aberrations in epigenetic marks have been associated with aging of the brain while caloric restriction (CR) and upregulation of endogenous antioxidants have been suggested as tools to attenuate the aging process. We have recently observed age-related increases in levels of 5-methylcytidine (5-mC) and DNA methyltransferase 3a (Dnmt3a) in the mouse hippocampus. Most of those age-related changes in these epigenetically relevant markers were prevented by CR but not by transgenic overexpression of the endogenous antioxidant superoxide dismutase 1 (SOD1). As recent work has suggested a distinct role for hydroxymethylation in epigenetic regulation of gene expression in the brain, the current study investigated age-related changes of 5-hydroxymethylcytosine (5-hmC) in the mouse hippocampus, and furthermore tested whether CR and transgenic upregulation of SOD1 affected any age-related changes in 5-hmC. Immunohistochemical analyses of 5-hmC in 12- and 24-month-old wild-type and transgenic mice overexpressing SOD1, which were kept under either a control or a calorie restricted diet, revealed an increase of 5-hmC immunoreactivity occurring with aging in the hippocampal dentate gyrus, CA3 and CA1-2 regions. Moreover, CR, but not overexpression of SOD1, prevented the age-related increase in the CA3 region. These findings indicate that the aging process in mice is connected with changes in epigenetic machinery in the hippocampus and suggest that CR acts by influencing epigenetic regulation.

Indexed as

Caloric Restriction5-MethylcytosineAge FactorsAnimalsCytosineDNA Methyltransferase 3AGene Expression RegulationHippocampusMaleMiceMice, Inbred C57BLMice, TransgenicSuperoxide DismutaseSuperoxide Dismutase-1Tissue Distribution5-hydroxymethylcytosine5-MethylcytosineCytosineDNA Methyltransferase 3ADnmt3a protein, mouseSod1 protein, mouseSuperoxide DismutaseSuperoxide Dismutase-1

Identifiers

PMID22272625
PMCPMC3561726
OpenAlexW2017199534

What OpenQuestion holds

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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.