Evidence map›Paper›PMID 27485750›Full record

ArticleBrain structure & function2017

Mapping the connectivity of serotonin transporter immunoreactive axons to excitatory and inhibitory neurochemical synapses in the mouse limbic brain.

Arnauld Belmer, Paul M Klenowski, Omkar L Patkar, Selena E Bartlett

Open access · hybridAbstract read
In one paragraph

Article in Brain structure & function, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 13% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  4. Review
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  6. Article
  7. Serotonin Strengthens a Developing Glutamatergic Synapse through a PI3K-Dependent Mechanism.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
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  15. Axo-axonic synapses: Diversity in neural circuit function.The Journal of comparative neurology · 2021
    Review
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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

4 authors at 2 institutions in 1 country.

Arnauld BelmerTranslational Research Institute, Queensland University of Technology, Brisbane, Qld 4059, Australia.
Paul M KlenowskiTranslational Research Institute, Queensland University of Technology, Brisbane, Qld 4059, Australia.
Omkar L PatkarTranslational Research Institute, Queensland University of Technology, Brisbane, Qld 4059, Australia.
Selena E BartlettTranslational Research Institute, Queensland University of Technology, Brisbane, Qld 4059, Australia. selena.bartlett@qut.edu.au.
Queensland University of Technology · AUTranslational Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Serotonin neurons arise from the brainstem raphe nuclei and send their projections throughout the brain to release 5-HT which acts as a modulator of several neuronal populations. Previous electron microscopy studies in rats have morphologically determined the distribution of 5-HT release sites (boutons) in certain brain regions and have shown that 5-HT containing boutons form synaptic contacts that are either symmetric or asymmetric. In addition, 5-HT boutons can form synaptic triads with the pre- and postsynaptic specializations of either symmetrical or asymmetrical synapses. However, due to the labor intensive processing of serial sections required by electron microscopy, little is known about the neurochemical properties or the quantitative distribution of 5-HT triads within whole brain or discrete subregions. Therefore, we used a semi-automated approach that combines immunohistochemistry and high-resolution confocal microscopy to label serotonin transporter (SERT) immunoreactive axons and reconstruct in 3D their distribution within limbic brain regions. We also used antibodies against key pre- (synaptophysin) and postsynaptic components of excitatory (PSD95) or inhibitory (gephyrin) synapses to (1) identify putative 5-HTergic boutons within SERT immunoreactive axons and, (2) quantify their close apposition to neurochemical excitatory or inhibitory synapses. We provide a 5-HTergic axon density map and have determined the ratio of synaptic triads consisting of a 5-HT bouton in close proximity to either neurochemical excitatory or inhibitory synapses within different limbic brain areas. The ability to model and map changes in 5-HTergic axonal density and the formation of triadic connectivity within whole brain regions using this rapid and quantitative approach offers new possibilities for studying neuroplastic changes in the 5-HTergic pathway.

Indexed as

Brain MappingAnalysis of VarianceAnimalsAxonsCarrier ProteinsDisks Large Homolog 4 ProteinGuanylate KinasesImaging, Three-DimensionalLimbic SystemMaleMembrane ProteinsMiceMice, Inbred C57BLMicroscopy, ConfocalMicroscopy, ElectronPresynaptic TerminalsCarrier ProteinsDisks Large Homolog 4 ProteinDlg4 protein, mousegephyrinGuanylate KinasesMembrane ProteinsSerotoninSerotonin Plasma Membrane Transport ProteinsSynaptophysin3D reconstructionGephyrinNeuromodulationPSD-95SerotoninSynaptophysin

Identifiers

PMID27485750
PMCPMC5368196
OpenAlexW2501805239

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.