Evidence map›Paper›PMID 22020781›Full record

ArticleThe Journal of comparative neurology2012

Characterization of axo-axonic synapses in the piriform cortex of Mus musculus.

Xinjun Wang, Qian-Quan Sun

Abstract read
In one paragraph

Article in The Journal of comparative neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 29% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Cortical control of chandelier cells in neural codes.Frontiers in cellular neuroscience · 2022
    Pooled it
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  20. Parvalbumin-containing chandelier and basket cell boutons have distinctive modes of maturation in monkey prefrontal cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013
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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

2 authors at 1 institution in 1 country.

Xinjun WangDepartment of Zoology and Physiology, University of Wyoming, Laramie, Wyoming 82071, USA.
Qian-Quan Sun
University of Wyoming · US

Funding

UWY COBRE: ADMINISTRATIVE COREP20RR015553 · NCRR · UNIVERSITY OF WYOMING · PI JONES, JUSTIN W. · 2000 to 2004
$6.6M
NEUROSCIENCE CORE CENTERP30GM103398 · NIGMS · UNIVERSITY OF WYOMING · PI FLYNN, FRANCIS W · 2012 to 2015
$3.9M
Experience-Dependent Plasticity of Neocortical Inhibitory NetworksR01NS057415 · NINDS · UNIVERSITY OF WYOMING · PI SUN, QIAN-QUAN · 2007 to 2010
$792k
NCRR NIH HHS P20 RR015553NIGMS NIH HHS P30 GM103398NINDS NIH HHS NS057415NINDS NIH HHS R01 NS057415
6 · The paper itself

Abstract

Previous anatomical and physiological studies have established major glutamatergic and GABAergic neuronal subtypes within the piriform cortical circuits. However, quantitative information regarding axo-axonic inhibitory synapses mediated by chandelier cells across major cortical subdivisions of piriform cortex is lacking. Therefore, we examined the properties of these synapses across the entire piriform cortex. Our results show the following. 1) γ-Aminobutyric acid membrane transporter 1-positive varicosities, whose appearance resembles chandelier cartridges, are found around the initial segments of axons of glutamatergic cells across layers II and III. 2) Both the density of axo-axonic cartridges and the degree of γ-aminobutyric acid membrane transporter 1 innervation in each axo-axonic synapse are significantly higher in the piriform cortex than in the neocortex. 3) Glutamate decarboxylase 67, vesicular GABA transporter, and parvalbumin, but not calbindin, are colocalized with the presynaptic varicosities, whereas gephyrin, Na-K-2Cl cotransporter 1, and GABA(A) receptor α1 subunit, but not K-Cl cotransporter 2, are colocalized at the presumed postsynaptic sites. 4) The axo-axonic cartridges innervate the majority of excitatory neurons and are distributed more frequently in putative centrifugal cells and posterior piriform cortex. We further describe the morphology of chandelier cells by using parvalbumin-immunoreactivity and single-cell labeling. In summary, our results demonstrate that a small population of chandelier cells mediates abundant axo-axonic synapses across the entire piriform cortex. Because of the critical location of these inhibitory synapses in relation to action potential regulation, our results highlight a critical role of axo-axonic synapses in regulating information flow and olfactory-related oscillations within the piriform cortex in vivo.

Indexed as

AnimalsAnkyrinsAxonsBlotting, WesternCalbindinsCarrier ProteinsCerebral CortexGlutamate DecarboxylaseImage Processing, Computer-AssistedImmunohistochemistryMaleMembrane ProteinsMiceParvalbuminsReceptors, GABA-AS100 Calcium Binding Protein G2-hydroxy-4,4'-diamidinostilbene, methanesulfonate saltAnk3 protein, mouseAnkyrinsCalbindinsCarrier ProteinsGabra1 protein, mousegephyrinGlutamate Decarboxylaseglutamate decarboxylase 1Membrane ProteinsParvalbuminsReceptors, GABA-AS100 Calcium Binding Protein GSodium-Potassium-Chloride SymportersStilbamidinesVesicular Inhibitory Amino Acid Transport ProteinsViaat protein, mouse

Identifiers

PMID22020781
PMCPMC3903392
OpenAlexW1988838201

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.