Evidence map›Paper›PMID 34162876›Full record

ArticleNature communications2021

Environmental enrichment preserves a young DNA methylation landscape in the aged mouse hippocampus.

Sara Zocher, Rupert W Overall, Mathias Lesche, Andreas Dahl, Gerd Kempermann

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% 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, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

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  13. Experimental laboratory models as tools for understanding modifiable dementia risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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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 2 institutions in 1 country.

Sara ZocherGerman Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany.ORCID http://orcid.org/0000-0001-8211-5490
Rupert W OverallGerman Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany.
Mathias LescheCenter for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany.ORCID http://orcid.org/0000-0002-3274-7163
Andreas DahlCenter for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany.ORCID http://orcid.org/0000-0002-2668-8371
Gerd KempermannGerman Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany. Gerd.Kempermann@dzne.de.ORCID http://orcid.org/0000-0002-5304-4061
German Center for Neurodegenerative Diseases · DECenter for Systems Biology Dresden · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The decline of brain function during aging is associated with epigenetic changes, including DNA methylation. Lifestyle interventions can improve brain function during aging, but their influence on age-related epigenetic changes is unknown. Using genome-wide DNA methylation sequencing, we here show that experiencing a stimulus-rich environment counteracts age-related DNA methylation changes in the hippocampal dentate gyrus of mice. Specifically, environmental enrichment prevented the aging-induced CpG hypomethylation at target sites of the methyl-CpG-binding protein Mecp2, which is critical to neuronal function. The genes at which environmental enrichment counteracted aging effects have described roles in neuronal plasticity, neuronal cell communication and adult hippocampal neurogenesis and are dysregulated with age-related cognitive decline in the human brain. Our results highlight the stimulating effects of environmental enrichment on hippocampal plasticity at the level of DNA methylation and give molecular insights into the specific aspects of brain aging that can be counteracted by lifestyle interventions.

Indexed as

AgingDNA MethylationEnvironmentAge FactorsAnimalsCpG IslandsDentate GyrusEpigenomicsFemaleHippocampusHumansMiceMice, Inbred C57BLNeurogenesisNeuronal PlasticityNeurons

Identifiers

PMID34162876
PMCPMC8222384
OpenAlexW3174540654

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.