Evidence map›Paper›PMID 10531421›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1999

Multiple and opposing roles of cholinergic transmission in the main olfactory bulb.

P E Castillo, A Carleton, J D Vincent, P M Lledo

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

72 citing papers in PubMed, 156 citations in OpenAlex.

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

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

4 authors at 2 institutions in 2 countries.

P E CastilloCentre National de la Recherche Scientifique, Institut Alfred Fessard, 91198 Gif-sur-Yvette Cedex, France.
A Carleton
J D Vincent
P M Lledo
Laboratoire de Neurobiologie Cellulaire et Moléculaire · FRUniversidad de la República · UY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The main olfactory bulb is a critical relay step between the olfactory epithelium and the olfactory cortex. A marked feature of the bulb is its massive innervation by cholinergic inputs from the basal forebrain. In this study, we addressed the functional interaction between cholinergic inputs and intrinsic bulbar circuitry. Determining the roles of acetylcholine (ACh) requires the characterization of cholinergic effects on both neural excitability and synaptic transmission. For this purpose, we used electrophysiological techniques to localize and characterize the diverse roles of ACh in mouse olfactory bulb slices. We found that cholinergic inputs have a surprising number of target receptor populations that are expressed on three different neuronal types in the bulb. Specifically, nicotinic acetylcholine receptors excite both the output neurons of the bulb, i.e., the mitral cells, as well as interneurons located in the periglomerular regions. These nicotine-induced responses in interneurons are short lasting, whereas responses in mitral cells are long lasting. In contrast, muscarinic receptors have an inhibitory effect on the firing rate of interneurons from a deeper layer, granule cells, while at the same time they increase the degree of activity-independent transmitter release from these cells onto mitral cells. Cholinergic signaling thus was found to have multiple and opposing roles in the olfactory bulb. These dual cholinergic effects on mitral cells and interneurons may be important in modulating olfactory bulb output to central structures required for driven behaviors and may be relevant to understanding mechanisms underlying the perturbations of cholinergic inputs to cortex that occur in Alzheimer's disease.

Indexed as

2-Amino-5-phosphonovalerateAcetylcholineAnimalsBicucullineCalciumCarbacholgamma-Aminobutyric AcidInterneuronsIn Vitro TechniquesKineticsMagnesiumMecamylamineMiceMice, Inbred C57BLModels, NeurologicalNeurons2,3-dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline2-Amino-5-phosphonovalerateAcetylcholineBicucullinebicuculline methiodideCalciumCarbacholgamma-Aminobutyric AcidMagnesiumMecamylamineN-MethylaspartateQuinoxalinesReceptors, GABA-AReceptors, Nicotinic

Identifiers

PMID10531421
PMCPMC6782910
OpenAlexW1776441027

What OpenQuestion holds

Textmetadata
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.