Evidence map›Paper›PMID 20538740›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2011

Cognitive decline is associated with reduced reelin expression in the entorhinal cortex of aged rats.

Alexis M Stranahan, Rebecca P Haberman, Michela Gallagher

Open access · bronzeAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

64 citing papers in PubMed, 101 citations in OpenAlex.

  1. Trial
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  17. Rapid Aging in the Perforant Path Projections to the Rodent Dentate Gyrus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  18. Heterogeneity of Age-Related Neural Hyperactivity along the CA3 Transverse Axis.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  19. Article
  20. Review

4 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

3 authors at 1 institution in 1 country.

Alexis M StranahanDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA.
Rebecca P Haberman
Michela Gallagher
Johns Hopkins University · US

Funding

TRANSCRIPTIONAL MECHANISMS OF HIPPOCAMPAL AGINGP01AG009973 · NIA · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI Audrey Eileen Branch, JAMES J KNIERIM · 1991 to 2026
$52.4M
Research Training in Age-Related Cognitive DisordersT32AG027668 · NIA · JOHNS HOPKINS UNIVERSITY · PI MARILYN S. ALBERT · 2007 to 2026
$6.3M
Reelin signaling in the temporal lobe as a component of neurocognitive agingF32AG034818 · NIA · JOHNS HOPKINS UNIVERSITY · PI STRANAHAN, ALEXIS M. · 2009 to 2009
$38k
NIA NIH HHS 5P01AG009973-17NIA NIH HHS F32 AG034818NIA NIH HHS P01 AG009973NIA NIH HHS T32 AG027668NIA NIH HHS T32 AG027668-02
6 · The paper itself

Abstract

Brain regions and neural circuits differ in their vulnerability to changes that occur during aging and in age-related neurodegenerative diseases. Among the areas that comprise the medial temporal lobe memory system, the layer II neurons of the entorhinal cortex, which form the perforant path input to the hippocampal formation, exhibit early alterations over the course of aging Reelin, a glycoprotein implicated in synaptic plasticity, is expressed by entorhinal cortical layer II neurons. Here, we report that an age-related reduction in reelin expression in the entorhinal cortex is associated with cognitive decline. Using immunohistochemistry and in situ hybridization, we observed decreases in the number of Reelin-immunoreactive cells and reelin messenger RNA expression in the lateral entorhinal cortex of aged rats that are cognitively impaired relative to young adults and aged rats with preserved cognitive abilities. The lateral entorhinal cortex of aged rats with cognitive impairment also exhibited changes in other molecular markers, including increased accumulation of phosphorylated tau and decreased synaptophysin immunoreactivity. Taken together, these findings suggest that reduced reelin expression, emanating from layer II entorhinal neurons, may contribute to network dysfunction that occurs during memory loss in aging.

Indexed as

AgingAge FactorsAnalysis of VarianceAnimalsCell Adhesion Molecules, NeuronalCognition DisordersDisease Models, AnimalDown-RegulationEntorhinal CortexExtracellular Matrix ProteinsMaleNerve Tissue ProteinsNeuropsychological TestsPhosphorylationRatsRats, Long-EvansCell Adhesion Molecules, NeuronalExtracellular Matrix ProteinsNerve Tissue ProteinsReelin ProteinReln protein, ratRNA, MessengerSerine EndopeptidasesSynaptophysintau Proteins

Identifiers

PMID20538740
PMCPMC3020582
OpenAlexW2119803636

What OpenQuestion holds

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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.