Evidence map›Paper›PMID 20525770›Full record

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

Involvement of the metabotropic glutamate receptor mGluR5 in NMDA receptor-dependent, learning-facilitated long-term depression in CA1 synapses.

Stoyan G Popkirov, Denise Manahan-Vaughan

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 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

42 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Article
  3. Interplay of hippocampal long-term potentiation and long-term depression in enabling memory representations.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  4. Article
  5. Review
  6. Editorial: Synaptic plasticity and dysfunction, friend or foe?Frontiers in synaptic neuroscience · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. The Density of Group I mGluInternational journal of molecular sciences · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

2 authors at 1 institution in 1 country.

Stoyan G PopkirovDepartment of Experimental Neurophysiology, Medical Faculty, Ruhr University Bochum, Bochum, Germany.
Denise Manahan-Vaughan
Ruhr University Bochum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Learning-facilitated synaptic plasticity describes the ability of hippocampal synapses to respond with persistent synaptic plasticity to the coupling of weak afferent stimulation, which is subthreshold for the induction of plasticity, with a spatial learning experience. The metabotropic glutamate receptor subtype 5 (mGluR5) is critically involved in enabling the persistency of multiple forms of hippocampal synaptic plasticity. We compared the effects of pharmacological allosteric antagonism of mGluR5 in learning-facilitated plasticity with plasticity that had been induced solely by patterned afferent stimulation of the Schaffer collateral pathway to the CA1 stratum radiatum of adult freely behaving rats. Intracerebroventricular injection of the selective mGluR5 antagonist 2-methyl-6-(phenylethynyl)pyridine (MPEP) had no effect on basal synaptic transmission but significantly prevented both long-term depression (LTD) elicited by electrical stimulation and LTD facilitated by novel object-place configuration learning. NMDA receptor antagonism also prevented learning-facilitated LTD. Habituation to the objects was prevented by MPEP application. Whereas reexposure to the object-place configuration (after 7 days) failed to facilitate LTD in control animals, those who had been treated previously with MPEP expressed LTD, suggesting that inhibition of learning contributed to the initial prevention of LTD. These data support a pivotal role for mGluR5 in both hippocampal LTD and the acquisition of object-place configurations.

Indexed as

AnimalsExcitatory Postsynaptic PotentialsHabituation, PsychophysiologicHippocampusLearningLong-Term Synaptic DepressionMaleN-MethylaspartateRatsRats, WistarReceptor, Metabotropic Glutamate 5Receptors, Metabotropic GlutamateSynapsesSynaptic TransmissionGrm5 protein, ratN-MethylaspartateReceptor, Metabotropic Glutamate 5Receptors, Metabotropic Glutamate

Identifiers

PMID20525770
PMCPMC3041006
OpenAlexW2131042588

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.