Evidence map›Paper›PMID 22378897›Full record

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

Nicotinic receptor-mediated filtering of mitral cell responses to olfactory nerve inputs involves the α3β4 subtype.

Rinaldo D D'Souza, Sukumar Vijayaraghavan

Abstract readComparative Study
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 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
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

33 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Olfactory Dysfunction in Neurodegenerative Diseases.Current allergy and asthma reports · 2018
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Differential Muscarinic Modulation in the Olfactory Bulb.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  17. Article
  18. Muscarinic receptors modulate dendrodendritic inhibitory synapses to sculpt glomerular output.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  19. Article
  20. Distinct roles of bulbar muscarinic and nicotinic receptors in olfactory discrimination learning.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    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.

Rinaldo D D'SouzaDepartment of Physiology and Biophysics and Neuroscience Program, University of Colorado School of Medicine, Aurora, Colorado 80045, USA.
Sukumar Vijayaraghavan

Funding

Cholinergic Modulation of OlfactionR01DC008855 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI VIJAYARAGHAVAN, SUKUMAR · 2007 to 2018
$3.2M
Nicotinic Signaling in the BrainR01DA010266 · NIDA · UNIVERSITY OF COLORADO DENVER · PI VIJAYARAGHAVAN, SUKUMAR · 1998 to 2012
$2.8M
NIDA NIH HHS R01 DA010266NIDA NIH HHS R01DA10266NIDCD NIH HHS R01 DC008855NIDCD NIH HHS R01DC008855
6 · The paper itself

Abstract

Acetylcholine (ACh) plays a major role in the processing of sensory inputs. Cholinergic input to the mammalian olfactory bulb modulates odor discrimination and perceptual learning by mechanisms that have yet to be elucidated. We have used the mouse olfactory bulb to examine the role of nicotinic ACh receptors (nAChRs) in regulating the responses of mitral cells (MCs), the output neurons of the olfactory bulb, to olfactory nerve input. We show that ACh activates α3β4* nAChRs (* denotes the possible presence of other subunits) on MCs, leading to their excitation. Despite depolarizing MCs directly, the net effect of nAChR activation is to suppress olfactory nerve-evoked responses in these cells via activity-dependent feedback GABAergic mechanisms. Our results indicate that nAChRs gate incoming olfactory nerve input wherein weak input stimuli are filtered out, whereas strong stimuli are transmitted via the MCs. Based on our observations, we provide a mechanistic model for the sharpening of MC receptive fields by nAChRs, which could aid in odor discrimination and perceptual learning.

Indexed as

AcetylcholineAnimalsExcitatory Postsynaptic PotentialsFemaleInhibitory Postsynaptic PotentialsLearningMaleMiceModels, NeurologicalOlfactory BulbOlfactory NerveReceptors, NicotinicAcetylcholinenicotinic receptor alpha3beta4Receptors, Nicotinic

Identifiers

PMID22378897
PMCPMC3306821

What OpenQuestion holds

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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.