Evidence map›Paper›PMID 34830163›Full record

ReviewInternational journal of molecular sciences2021

Epigenetic Mechanisms in Memory and Cognitive Decline Associated with Aging and Alzheimer's Disease.

Sabyasachi Maity, Kayla Farrell, Shaghayegh Navabpour, Sareesh Naduvil Narayanan, Timothy J Jarome

Open access · goldAbstract readReview
In one paragraph

Review in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 2 pooled it
5.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 2 syntheses or guidelines pooled it, 106 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Simvastatin rescues cognitive impairment in an AβNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  16. Epigenetic manipulation of anterior insular cortex alters neural signals and cognitive control.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  17. Article
  18. Article
  19. Review
  20. Article

12 more citing papers are in PubMed but not listed here.

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 4 institutions in 3 countries.

Sabyasachi MaityDepartment of Physiology, Neuroscience and Behavioral Sciences, St. George's University School of Medicine, Grenada, West Indies.ORCID 0000-0003-4180-5983
Kayla FarrellDepartment of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.ORCID 0000-0002-5814-2365
Shaghayegh NavabpourTranslational Biology, Medicine and Health, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA.ORCID 0000-0002-0241-9214
Sareesh Naduvil NarayananDepartment of Physiology, Ras Al Khaimah College of Medical Sciences, Ras Al Khaimah Medical & Health Sciences University, Ras Al Khaimah P.O. Box 11172, United Arab Emirates.ORCID 0000-0002-2980-2352
Timothy J JaromeDepartment of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
Biomedical Research Institute · USRas al-Khaimah Medical and Health Sciences University · AESt. George's University · GDVirginia Tech · US

Funding

NIH HHS MH120498NIH HHS MH120569NIH HHS MH122414NIH HHS MH123742
6 · The paper itself

Abstract

Epigenetic mechanisms, which include DNA methylation, a variety of post-translational modifications of histone proteins (acetylation, phosphorylation, methylation, ubiquitination, sumoylation, serotonylation, dopaminylation), chromatin remodeling enzymes, and long non-coding RNAs, are robust regulators of activity-dependent changes in gene transcription. In the brain, many of these epigenetic modifications have been widely implicated in synaptic plasticity and memory formation. Dysregulation of epigenetic mechanisms has been reported in the aged brain and is associated with or contributes to memory decline across the lifespan. Furthermore, alterations in the epigenome have been reported in neurodegenerative disorders, including Alzheimer's disease. Here, we review the diverse types of epigenetic modifications and their role in activity- and learning-dependent synaptic plasticity. We then discuss how these mechanisms become dysregulated across the lifespan and contribute to memory loss with age and in Alzheimer's disease. Collectively, the evidence reviewed here strongly supports a role for diverse epigenetic mechanisms in memory formation, aging, and neurodegeneration in the brain.

Indexed as

AgingAlzheimer DiseaseBrainChromatin Assembly and DisassemblyCognitive DysfunctionEpigenesis, GeneticMemory DisordersAcetylationAnimalsDNA MethylationHumansNeuronal PlasticityProtein Processing, Post-TranslationalDNAepigeneticshippocampushistonememoryneurodegeneration

Identifiers

PMID34830163
PMCPMC8618067
OpenAlexW3211482167

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.