Evidence map›Paper›PMID 27663700›Full record

ArticleNeuropharmacology2017

Divergent cAMP signaling differentially regulates serotonin-induced spinal motor plasticity.

D P Fields, G S Mitchell

Abstract read
In one paragraph

Article in Neuropharmacology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

32 citing papers in PubMed, 39 citations in OpenAlex.

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  6. Phrenic long-term facilitation following acute intermittent hypercapnic-hypoxia in rats.Journal of applied physiology (Bethesda, Md. : 1985) · 2025
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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 2 institutions in 1 country.

D P FieldsDepartment of Comparative Biosciences, University of Wisconsin, Madison, WI 53706, USA.
G S MitchellDepartment of Physical Therapy and McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA. Electronic address: gsmitche@phhp.ufl.edu.
University of Florida · USUniversity of Wisconsin–Madison · US

Funding

INTEGRATED TRAINING FOR PHYSICIAN-SCIENTISTST32GM008692 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI BURKARD, MARK E · 1998 to 2020
$10.3M
Mechanisms of respiratory long-term facilitationR01HL080209 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI MITCHELL, GORDON S. · 2005 to 2013
$2.9M
Respiratory Plasticity and Spinal Cord InjuryR01HL069064 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI MITCHELL, GORDON S. · 2014 to 2017
$1.5M
Repetitive acute intermittent hypoxia elicits respiratory metaplasticityF30HL126351 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI FIELDS, DARYL · 2015 to 2016
$81k
NHLBI NIH HHS F30 HL126351NHLBI NIH HHS R01 HL069064NHLBI NIH HHS R01 HL080209NIGMS NIH HHS T32 GM008692
6 · The paper itself

Abstract

Spinal metabotropic serotonin receptors encode transient experiences into long-lasting changes in motor behavior (i.e. motor plasticity). While interactions between serotonin receptor subtypes are known to regulate plasticity, the significance of molecular divergence in downstream G protein coupled receptor signaling is not well understood. Here we tested the hypothesis that distinct cAMP dependent signaling pathways differentially regulate serotonin-induced phrenic motor facilitation (pMF); a well-studied model of spinal motor plasticity. Specifically, we studied the capacity of cAMP-dependent protein kinase A (PKA) and exchange protein activated by cAMP (EPAC) to regulate 5-HT2A receptor-induced pMF within adult male rats. Although spinal PKA, EPAC and 5-HT2A each elicit pMF when activated alone, concurrent PKA and 5-HT2A activation interact via mutual inhibition thereby blocking pMF expression. Conversely, concurrent EPAC and 5-HT2A activation enhance pMF expression reflecting additive contributions from both mechanisms. Thus, we demonstrate that distinct downstream cAMP signaling pathways enable differential regulation of 5-HT2A-induced pMF. Conditional activation of independent signaling mechanisms may explain experience amendable changes in plasticity expression (i.e. metaplasticity), an emerging concept thought to enable flexible motor control within the adult central nervous system.

Indexed as

Neuronal PlasticityAnimalsCyclic AMPCyclic AMP-Dependent Protein KinasesGuanine Nucleotide Exchange FactorsMaleMotor NeuronsPhrenic NerveRatsRats, Sprague-DawleyReceptor, Serotonin, 5-HT2ASerotoninSerotonin 5-HT2 Receptor AgonistsSignal TransductionCyclic AMPCyclic AMP-Dependent Protein KinasesGuanine Nucleotide Exchange FactorsRapgef3 protein, ratReceptor, Serotonin, 5-HT2ASerotoninSerotonin 5-HT2 Receptor Agonists5-HT2 receptor5-HT7 receptorEPACExchange protein activated by cAMPMotor neuronPhrenicPKAProtein kinase ARespiratory plasticitySpinal cord

Identifiers

PMID27663700
PMCPMC5193111
OpenAlexW2523315497

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.