Evidence map›Paper›PMID 34219651›Full record

ArticleeLife2021

GluA4 facilitates cerebellar expansion coding and enables associative memory formation.

Katarzyna Kita, Catarina Albergaria, Ana S Machado, Megan R Carey, Martin Müller, Igor Delvendahl

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed, 32 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

6 authors at 2 institutions in 2 countries.

Katarzyna KitaDepartment of Molecular Life Sciences, University of Zurich, Zurich, Switzerland.ORCID 0000-0002-8371-7941
Catarina AlbergariaChampalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, Lisbon, Portugal.ORCID 0000-0001-8257-3600
Ana S MachadoChampalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, Lisbon, Portugal.
Megan R CareyChampalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, Lisbon, Portugal.ORCID 0000-0002-4499-1657
Martin MüllerDepartment of Molecular Life Sciences, University of Zurich, Zurich, Switzerland.ORCID 0000-0003-1624-6761
Igor DelvendahlDepartment of Molecular Life Sciences, University of Zurich, Zurich, Switzerland.ORCID 0000-0002-6151-2363
Champalimaud Foundation · PTUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

AMPA receptors (AMPARs) mediate excitatory neurotransmission in the central nervous system (CNS) and their subunit composition determines synaptic efficacy. Whereas AMPAR subunits GluA1-GluA3 have been linked to particular forms of synaptic plasticity and learning, the functional role of GluA4 remains elusive. Here, we demonstrate a crucial function of GluA4 for synaptic excitation and associative memory formation in the cerebellum. Notably, GluA4-knockout mice had ~80% reduced mossy fiber to granule cell synaptic transmission. The fidelity of granule cell spike output was markedly decreased despite attenuated tonic inhibition and increased NMDA receptor-mediated transmission. Computational network modeling incorporating these changes revealed that deletion of GluA4 impairs granule cell expansion coding, which is important for pattern separation and associative learning. On a behavioral level, while locomotor coordination was generally spared, GluA4-knockout mice failed to form associative memories during delay eyeblink conditioning. These results demonstrate an essential role for GluA4-containing AMPARs in cerebellar information processing and associative learning.

Indexed as

AnimalsBlinkingCerebellumConditioning, ClassicalFemaleMaleMemoryMiceMice, KnockoutReceptors, AMPAglutamate receptor ionotropic, AMPA 4Receptors, AMPAAMPA receptorcerebellumlearningmouseneurosciencesynaptic transmission

Identifiers

PMID34219651
PMCPMC8291978
OpenAlexW3181088612

What OpenQuestion holds

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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.