Evidence map›Paper›PMID 32599664›Full record

ArticleAging cell2020

Responsiveness of dentate neurons generated throughout adult life is associated with resilience to cognitive aging.

Marie-Françoise Montaron, Vanessa Charrier, Nicolas Blin, Pierre Garcia, Djoher Nora Abrous

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 28 citations in OpenAlex.

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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 1 institution in 1 country.

Marie-Françoise MontaronINSERM UMR 1215, Magendie Neurocenter, Neurogenesis and Pathophysiology Group, Bordeaux, France.
Vanessa CharrierINSERM UMR 1215, Magendie Neurocenter, Neurogenesis and Pathophysiology Group, Bordeaux, France.ORCID 0000-0003-0239-7374
Nicolas BlinINSERM UMR 1215, Magendie Neurocenter, Neurogenesis and Pathophysiology Group, Bordeaux, France.
Pierre GarciaINSERM UMR 1215, Magendie Neurocenter, Neurogenesis and Pathophysiology Group, Bordeaux, France.
Djoher Nora AbrousINSERM UMR 1215, Magendie Neurocenter, Neurogenesis and Pathophysiology Group, Bordeaux, France.
Université de Bordeaux · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During aging, some individuals are resilient to the decline of cognitive functions whereas others are vulnerable. These inter-individual differences in memory abilities have been associated with differences in the rate of hippocampal neurogenesis measured in elderlies. Whether the maintenance of the functionality of neurons generated throughout adult life is linked to resilience to cognitive aging remains completely unexplored. Using the immediate early gene Zif268, we analyzed the activation of dentate granule neurons born in adult (3-month-old), middle-aged (12-month-old), or senescent (18-month-old) rats (n = 96) in response to learning when animals reached 21 months of age. The activation of neurons born during the developmental period was also examined. We show that adult-born neurons can survive up to 19 months and that neurons generated 4, 10, or 19 months before learning, but not developmentally born neurons, are activated in senescent rats with good learning abilities. In contrast, aged rats with bad learning abilities do not exhibit activity-dependent regulation of newborn cells, whatever their birthdate. In conclusion, we propose that resilience to cognitive aging is associated with responsiveness of neurons born during adult life. These data add to our current knowledge by showing that the aging of memory abilities stems not only from the number but also from the responsiveness of adult-born neurons.

Indexed as

AnimalsCognitive AgingMaleNeuronsRatsadult neurogenesisaging cellhippocampusresiliencespatial memorysuccessful aging

Identifiers

PMID32599664
PMCPMC7431828
OpenAlexW3039581519

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.