Evidence map›Paper›PMID 17048987›Full record

ArticlePLoS biology2006

Plasticity of astrocytic coverage and glutamate transporter expression in adult mouse cortex.

Christel Genoud, Charles Quairiaux, Pascal Steiner, Harald Hirling, Egbert Welker, Graham W Knott

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers.

0numbers the graph read from it
0cells of the map it votes in
157citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

157 citing papers in PubMed, 305 citations in OpenAlex.

  1. Perisynaptic Astrocytic Processes as Communication Hubs and Early Sites of Dysfunction.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Astrocyte Modulation of Synaptic Plasticity Mediated by Activity-Dependent Sonic Hedgehog Signaling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Astrocyte morphology.Trends in cell biology · 2024
    Review
  14. Article
  15. Review
  16. Article
  17. Essential Role of Astrocytes in Learning and Memory.International journal of molecular sciences · 2024
    Review
  18. Article
  19. Microglial Regulation of Sleep and Wakefulness.Advances in neurobiology · 2024
    Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Christel GenoudDépartment de Biologie Cellulaire et de Morphologie, Lausanne, Switzerland.
Charles Quairiaux
Pascal Steiner
Harald Hirling
Egbert Welker
Graham W Knott
Biologie Labor · CHÉcole Polytechnique Fédérale de Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Astrocytes play a major role in the removal of glutamate from the extracellular compartment. This clearance limits the glutamate receptor activation and affects the synaptic response. This function of the astrocyte is dependent on its positioning around the synapse, as well as on the level of expression of its high-affinity glutamate transporters, GLT1 and GLAST. Using Western blot analysis and serial section electron microscopy, we studied how a change in sensory activity affected these parameters in the adult cortex. Using mice, we found that 24 h of whisker stimulation elicited a 2-fold increase in the expression of GLT1 and GLAST in the corresponding cortical column of the barrel cortex. This returns to basal levels 4 d after the stimulation was stopped, whereas the expression of the neuronal glutamate transporter EAAC1 remained unaltered throughout. Ultrastructural analysis from the same region showed that sensory stimulation also causes a significant increase in the astrocytic envelopment of excitatory synapses on dendritic spines. We conclude that a period of modified neuronal activity and synaptic release of glutamate leads to an increased astrocytic coverage of the bouton-spine interface and an increase in glutamate transporter expression in astrocytic processes.

Indexed as

Amino Acid Transport System X-AGAnimalsAstrocytesCerebral CortexDendritic SpinesExcitatory Amino Acid Transporter 2FemaleGene ExpressionGene Expression RegulationMiceMice, Inbred ICRModels, BiologicalNeuronal PlasticityPresynaptic TerminalsSynaptic TransmissionVibrissaeAmino Acid Transport System X-AGExcitatory Amino Acid Transporter 2

Identifiers

PMID17048987
PMCPMC1609127
OpenAlexW1995219764

What OpenQuestion holds

Textmetadata
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.