Evidence map›Paper›PMID 24211490›Full record

ArticleGastroenterology2014

Ca2+ responses in enteric glia are mediated by connexin-43 hemichannels and modulate colonic transit in mice.

Jonathon McClain, Vladimir Grubišić, David Fried, Roberto A Gomez-Suarez, Gina M Leinninger, Jean Sévigny, Vladimir Parpura, Brian D Gulbransen

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

134 citing papers in PubMed, 1 synthesis or guideline pooled it, 212 citations in OpenAlex.

  1. Pooled it
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  8. Article
  9. Enteric glia, neuropeptides, and Parkinson's: impacts of calcitonin gene-related peptide on gut alpha synuclein.American journal of physiology. Gastrointestinal and liver physiology · 2026
    Article
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  15. Calcium Imaging Studies in Enteric Glia.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
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74 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

8 authors at 5 institutions in 3 countries.

Jonathon McClain *Neuroscience Program and Department of Physiology, Michigan State University, 567 Wilson Road, East Lansing, MI, 48824 USA.
Vladimir Grubišić *Department of Neurobiology, Center for Glial Biology in Medicine, Atomic Force Microscopy and Nanotechnology Laboratories, Civitan International Research Center, Evelyn F. McKnight Brain Institute, University of Alabama, Birmingham, AL 35294, USA.
David FriedDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824.
Roberto A Gomez-SuarezDepartment of Neurobiology, Center for Glial Biology in Medicine, Atomic Force Microscopy and Nanotechnology Laboratories, Civitan International Research Center, Evelyn F. McKnight Brain Institute, University of Alabama, Birmingham, AL 35294, USA.
Gina M LeinningerNeuroscience Program and Department of Physiology, Michigan State University, 567 Wilson Road, East Lansing, MI, 48824 USA.
Jean SévignyDépartement de microbiologie-infectiologie et d'immunologie, Faculté de Médecine, Université Laval, Québec, QC, Canada.
Vladimir ParpuraDepartment of Neurobiology, Center for Glial Biology in Medicine, Atomic Force Microscopy and Nanotechnology Laboratories, Civitan International Research Center, Evelyn F. McKnight Brain Institute, University of Alabama, Birmingham, AL 35294, USA.
Brian D GulbransenNeuroscience Program and Department of Physiology, Michigan State University, 567 Wilson Road, East Lansing, MI, 48824 USA.
Michigan State University · USCentre hospitalier universitaire de Québec · CACivitan International · USUniversity of Alabama · USUniversity of Rijeka · HR

Funding

Building Interdisciplinary Research Careers in Women's Health at Michigan StateK12HD065879 · NICHD · MICHIGAN STATE UNIVERSITY · PI HOLZMAN, CLAUDIA B. · 2010 to 2014
$2.5M
The Role of Astroglia in the Enteric Nervous System and Gut FunctionR21HD078678 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI PARPURA, VLADIMIR · 2014 to 2015
$400k
AHRQ HHS HS078678NICHD NIH HHS K12 HD065879NICHD NIH HHS R21 HD078678
6 · The paper itself

Abstract

BACKGROUND &

aimsIn the enteric nervous system, neurotransmitters initiate changes in calcium (Ca(2+) responses) in glia, but it is not clear how this process affects intestinal function. We investigated whether Ca(2+)-mediated responses in enteric glia are required to maintain gastrointestinal function.

methodsWe used in situ Ca(2+) imaging to monitor glial Ca(2+) responses, which were manipulated with pharmacologic agents or via glia-specific disruption of the gene encoding connexin-43 (Cx43) (hGFAP::CreER(T2+/-)/Cx43(f/f) mice). Gastrointestinal function was assessed based on pellet output, total gut transit, colonic bead expulsion, and muscle tension recordings. Proteins were localized and quantified by immunohistochemistry, immunoblot, and reverse transcription polymerase chain reaction analyses.

resultsCa(2+) responses in enteric glia of mice were mediated by Cx43 hemichannels. Cx43 immunoreactivity was confined to enteric glia within the myenteric plexus of the mouse colon; the Cx43 inhibitors carbenoxolone and 43Gap26 inhibited the ability of enteric glia to propagate Ca(2+) responses. In vivo attenuation of Ca(2+) responses in the enteric glial network slowed gut transit overall and delayed colonic transit--these changes are also observed during normal aging. Altered motility with increasing age was associated with reduced glial Ca(2+)-mediated responses and changes in glial expression of Cx43 messenger RNA and protein.

conclusionsCa(2+)-mediated responses in enteric glia regulate gastrointestinal function in mice. Altered intercellular signaling between enteric glia and neurons might contribute to motility disorders.

Indexed as

AnimalsBiomarkersBlotting, WesternCalcium ChannelsCalcium SignalingColonConnexin 43Enteric Nervous SystemFemaleGastrointestinal TransitImmunohistochemistryMaleMiceMice, Inbred C57BLMice, KnockoutNeurogliaBiomarkersCalcium ChannelsConnexin 43GJA1 protein, mouseadenosine diphosphateadenosine triphosphateADPAgingATPCa(2+)calciumcarbenoxoloneCBXconnexin-43Cx43EGENSenteric gliaenteric nervous systemER(T2)GFAPglial fibrillary acidic proteini-cKOinducible and conditional knockoutIntestinal Nervous Systemmessenger RNAmoamonths of ageMouse ModelmRNAmutated estrogen receptorPurines

Identifiers

PMID24211490
PMCPMC3935238
OpenAlexW2075382402

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.