Evidence map›Paper›PMID 27776147›Full record

ArticlePloS one2016

Astrocytic β2 Adrenergic Receptor Gene Deletion Affects Memory in Aged Mice.

Cathy Joanna Jensen, Frauke Demol, Romy Bauwens, Ron Kooijman, Ann Massie, Agnès Villers, Laurence Ris, Jacques De Keyser

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

21 citing papers in PubMed, 33 citations in OpenAlex.

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  14. Astrocytes and Behavior.Annual review of neuroscience · 2021
    Article
  15. GLAST-CreERGlia · 2020
    Article
  16. Review
  17. Review
  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

8 authors at 3 institutions in 2 countries.

Cathy Joanna JensenDepartment of Neurology, University Hospital Brussels and Center for Neuroscience, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Frauke DemolDepartment of Neurology, University Hospital Brussels and Center for Neuroscience, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Romy BauwensCenter for Neurosiences, Vrije Universiteit Brussel, Brussels, Belgium.
Ron KooijmanCenter for Neurosiences, Vrije Universiteit Brussel, Brussels, Belgium.
Ann MassieCenter for Neurosiences, Vrije Universiteit Brussel, Brussels, Belgium.
Agnès VillersDepartment of Neuroscience, Health, University of Mons, Mons, Belgium.
Laurence RisDepartment of Neuroscience, Health, University of Mons, Mons, Belgium.
Jacques De KeyserDepartment of Neurology, University Hospital Brussels and Center for Neuroscience, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
Vrije Universiteit Brussel · BEUniversity of Mons · BEUniversity Medical Center Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In vitro and in vivo studies suggest that the astrocytic adrenergic signalling enhances glycogenolysis which provides energy to be transported to nearby cells and in the form of lactate. This energy source is important for motor and cognitive functioning. While it is suspected that the β2-adrenergic receptor on astrocytes might contribute to this energy balance, it has not yet been shown conclusively in vivo. Inducible astrocyte specific β2-adrenergic receptor knock-out mice were generated by crossing homozygous β2-adrenergic receptor floxed mice (Adrb2flox) and mice with heterozygous tamoxifen-inducible Cre recombinase-expression driven by the astrocyte specific L-glutamate/L-aspartate transporter promoter (GLAST-CreERT2). Assessments using the modified SHIRPA (SmithKline/Harwell/Imperial College/Royal Hospital/Phenotype Assessment) test battery, swimming ability test, and accelerating rotarod test, performed at 1, 2 and 4 weeks, 6 and 12 months after tamoxifen (or vehicle) administration did not reveal any differences in physical health or motor functions between the knock-out mice and controls. However deficits were found in the cognitive ability of aged, but not young adult mice, reflected in impaired learning in the Morris Water Maze. Similarly, long-term potentiation (LTP) was impaired in hippocampal brain slices of aged knock-out mice maintained in low glucose media. Using microdialysis in cerebellar white matter we found no significant differences in extracellular lactate or glucose between the young adult knock-out mice and controls, although trends were detected. Our results suggest that β2-adrenergic receptor expression on astrocytes in mice may be important for maintaining cognitive health at advanced age, but is dispensable for motor function.

Indexed as

Gene DeletionMemoryAgingAnimalsAstrocytesMaze LearningMiceMice, KnockoutReceptors, Adrenergic, beta-2Receptors, Adrenergic, beta-2

Identifiers

PMID27776147
PMCPMC5077086
OpenAlexW2528281776

What OpenQuestion holds

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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.