Evidence map›Paper›PMID 20159452›Full record

ArticleNeuron2010

Synaptic inhibition in the olfactory bulb accelerates odor discrimination in mice.

Nixon M Abraham, Veronica Egger, Derya R Shimshek, Robert Renden, Izumi Fukunaga, Rolf Sprengel, Peter H Seeburg, Matthias Klugmann, Troy W Margrie, Andreas T Schaefer and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 165 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
165citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 2% 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

165 citing papers in PubMed, 1 synthesis or guideline pooled it, 258 citations in OpenAlex.

  1. Pooled it
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  16. Dense and Persistent Odor Representations in the Olfactory Bulb of Awake Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  17. Review
  18. Article
  19. Long COVID: From olfactory dysfunctions to viral Parkinsonism.World journal of otorhinolaryngology - head and neck surgery · 2024
    Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 3 countries.

Nixon M AbrahamInstitute of Anatomy and Cell Biology, University of Heidelberg, INF 307, 69120 Heidelberg, Germany; WIN Olfactory Dynamics Group, Max Planck Institute for Medical Research, Jahnstrasse 29, 69120 Heidelberg, Germany.
Veronica Egger
Derya R Shimshek
Robert Renden
Izumi Fukunaga
Rolf Sprengel
Peter H Seeburg
Matthias Klugmann
Troy W Margrie
Andreas T Schaefer
Thomas Kuner
Max Planck Institute for Medical Research · DEHeidelberg University · DELudwig-Maximilians-Universität München · DEUniversity College London · GBUniversity of Auckland · NZ

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council MC_U117597156Wellcome Trust 070067
6 · The paper itself

Abstract

Local inhibitory circuits are thought to shape neuronal information processing in the central nervous system, but it remains unclear how specific properties of inhibitory neuronal interactions translate into behavioral performance. In the olfactory bulb, inhibition of mitral/tufted cells via granule cells may contribute to odor discrimination behavior by refining neuronal representations of odors. Here we show that selective deletion of the AMPA receptor subunit GluA2 in granule cells boosted synaptic Ca(2+) influx, increasing inhibition of mitral cells. On a behavioral level, discrimination of similar odor mixtures was accelerated while leaving learning and memory unaffected. In contrast, selective removal of NMDA receptors in granule cells slowed discrimination of similar odors. Our results demonstrate that inhibition of mitral cells controlled by granule cell glutamate receptors results in fast and accurate discrimination of similar odors. Thus, spatiotemporally defined molecular perturbations of olfactory bulb granule cells directly link stimulus similarity, neuronal processing time, and discrimination behavior to synaptic inhibition.

Indexed as

OdorantsAnimalsBehavior, AnimalCalciumDiscrimination LearningElectric StimulationInhibitory Postsynaptic PotentialsIn Vitro TechniquesMemoryMiceMice, Inbred C57BLMice, TransgenicMutationNeural InhibitionNeuronsOlfactory BulbCalciumglutamate receptor ionotropic, AMPA 2Receptors, AMPAReceptors, N-Methyl-D-Aspartate

Identifiers

PMID20159452
PMCPMC6366558
OpenAlexW2007088406

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.