Evidence map›Paper›PMID 22593057›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

NMDA receptors with incomplete Mg²⁺ block enable low-frequency transmission through the cerebellar cortex.

Eric J Schwartz, Jason S Rothman, Guillaume P Dugué, Marco Diana, Charly Rousseau, R Angus Silver, Stéphane Dieudonné

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 9% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. The cellular model for Alzheimer's disease research: PC12 cells.Frontiers in molecular neuroscience · 2022
    Pooled it
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  6. A Continuum of Response Properties across the Population of Unipolar Brush Cells in the Dorsal Cochlear Nucleus.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
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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

7 authors at 4 institutions in 2 countries.

Eric J SchwartzEcole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, F-75005 France.
Jason S Rothman
Guillaume P Dugué
Marco Diana
Charly Rousseau
R Angus Silver
Stéphane Dieudonné
Centre National de la Recherche Scientifique · FRUniversity College London · GBÉcole Normale Supérieure - PSL · FRGènes, synapses et cognition · FR

Funding

Biotechnology and Biological Sciences Research Council BB/F005490/1Biotechnology and Biological Sciences Research Council F005490Wellcome Trust 064413Wellcome Trust 095667
6 · The paper itself

Abstract

The cerebellar cortex coordinates movements and maintains balance by modifying motor commands as a function of sensory-motor context, which is encoded by mossy fiber (MF) activity. MFs exhibit a wide range of activity, from brief precisely timed high-frequency bursts, which encode discrete variables such as whisker stimulation, to low-frequency sustained rate-coded modulation, which encodes continuous variables such as head velocity. While high-frequency MF inputs have been shown to activate granule cells (GCs) effectively, much less is known about sustained low-frequency signaling through the GC layer, which is impeded by a hyperpolarized resting potential and strong GABA(A)-mediated tonic inhibition of GCs. Here we have exploited the intrinsic MF network of unipolar brush cells to activate GCs with sustained low-frequency asynchronous MF inputs in rat cerebellar slices. We find that low-frequency MF input modulates the intrinsic firing of Purkinje cells, and that this signal transmission through the GC layer requires synaptic activation of Mg²⁺-block-resistant NMDA receptors (NMDARs) that are likely to contain the GluN2C subunit. Slow NMDAR conductances sum temporally to contribute approximately half the MF-GC synaptic charge at hyperpolarized potentials. Simulations of synaptic integration in GCs show that the NMDAR and slow spillover-activated AMPA receptor (AMPAR) components depolarize GCs to a similar extent. Moreover, their combined depolarizing effect enables the fast quantal AMPAR component to trigger action potentials at low MF input frequencies. Our results suggest that the weak Mg²⁺ block of GluN2C-containing NMDARs enables transmission of low-frequency MF signals through the input layer of the cerebellar cortex.

Indexed as

Action PotentialsAnimalsCerebellar CortexExcitatory Postsynaptic PotentialsGlycineIn Vitro TechniquesMagnesiumMaleNerve FibersNeuronsPurkinje CellsRatsRats, WistarReceptors, N-Methyl-D-AspartateResorcinolsSynaptic Transmission3,5-dihydroxyphenylglycineGlycineMagnesiumReceptors, N-Methyl-D-AspartateResorcinols

Identifiers

PMID22593057
PMCPMC3463806
OpenAlexW2047541982

What OpenQuestion holds

Textmetadata
LicenceTDM
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.