Evidence map›Paper›PMID 28152033›Full record

ArticlePloS one2017

No neuronal loss, but alterations of the GDNF system in asymptomatic diverticulosis.

Martina Barrenschee, Thilo Wedel, Christina Lange, Ines Hohmeier, François Cossais, Michael Ebsen, Ilka Vogel, Martina Böttner

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Article
  6. Etiopathogenetic Mechanisms in Diverticular Disease of the Colon.Cellular and molecular gastroenterology and hepatology · 2020
    Review
  7. Article
  8. Article
  9. Review
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 2 institutions in 1 country.

Martina BarrenscheeInstitute of Anatomy, Kiel University, Kiel, Germany.ORCID http://orcid.org/0000-0002-0244-9333
Thilo WedelInstitute of Anatomy, Kiel University, Kiel, Germany.
Christina LangeInstitute of Anatomy, Kiel University, Kiel, Germany.
Ines HohmeierInstitute of Anatomy, Kiel University, Kiel, Germany.
François CossaisInstitute of Anatomy, Kiel University, Kiel, Germany.
Michael EbsenDepartment of Pathology, Städtisches Krankenhaus Kiel, Kiel, Germany.
Ilka VogelDepartment of Surgery, Städtisches Krankenhaus Kiel, Kiel, Germany.
Martina BöttnerInstitute of Anatomy, Kiel University, Kiel, Germany.
Christian-Albrechts-Universität zu Kiel · DESchmerzklinik Kiel · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlial cell line-derived neurotrophic factor (GDNF) is a potent neurotrophic factor known to promote the survival and maintenance of neurons not only in the developing but also in the adult enteric nervous system. As diverticular disease (DD) is associated with reduced myenteric neurons, alterations of the GDNF system were studied in asymptomatic diverticulosis (diverticulosis) and DD.

methodsMorphometric analysis for quantifying myenteric ganglia and neurons were assessed in colonic full-thickness sections of patients with diverticulosis and controls. Samples of tunica muscularis (TM) and laser-microdissected myenteric ganglia from patients with diverticulosis, DD and controls were analyzed for mRNA expression levels of GDNF, GFRA1, and RET by RT-qPCR. Myenteric protein expression of both receptors was quantified by fluorescence-immunohistochemistry of patients with diverticulosis, DD, and controls.

resultsAlthough no myenteric morphometric alterations were found in patients with diverticulosis, GDNF, GFRA1 and RET mRNA expression was down-regulated in the TM of patients with diverticulosis as well as DD. Furthermore GFRA1 and RET myenteric plexus mRNA expression of patients with diverticulosis and DD was down-regulated, whereas GDNF remained unaltered. Myenteric immunoreactivity of the receptors GFRα1 and RET was decreased in both asymptomatic diverticulosis and DD patients.

conclusionOur data provide evidence for an impaired GDNF system at gene and protein level not only in DD but also during early stages of diverticula formation. Thus, the results strengthen the idea of a disturbed GDNF-responsiveness as contributive factor for a primary enteric neuropathy involved in the pathogenesis and disturbed intestinal motility observed in DD.

Indexed as

AgedCase-Control StudiesColonDiverticulumFluorescent Antibody TechniqueGlial Cell Line-Derived Neurotrophic FactorGlial Cell Line-Derived Neurotrophic Factor ReceptorsHumansLaser Capture MicrodissectionMaleMyenteric PlexusProto-Oncogene Proteins c-retReal-Time Polymerase Chain ReactionGFRA1 protein, humanGlial Cell Line-Derived Neurotrophic FactorGlial Cell Line-Derived Neurotrophic Factor ReceptorsProto-Oncogene Proteins c-retRET protein, human

Identifiers

PMID28152033
PMCPMC5289619
OpenAlexW2583731956

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.