Evidence map›Paper›PMID 27829462›Full record

ArticleVeterinary research2016

Immunomodulation in the canine endometrium by uteropathogenic Escherichia coli.

Sofia Henriques, Elisabete Silva, Marta F Silva, Sandra Carvalho, Patrícia Diniz, Luís Lopes-da-Costa, Luisa Mateus

Open access · goldAbstract read
In one paragraph

Article in Veterinary research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Characterization ofVeterinary sciences · 2022
    Article
  6. Biofilm forming potentiality ofJournal of advanced veterinary and animal research · 2020
    Article
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

7 authors at 1 institution in 1 country.

Sofia HenriquesReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Elisabete SilvaReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Marta F SilvaReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Sandra CarvalhoPathology Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Patrícia DinizReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Luís Lopes-da-CostaReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
Luisa MateusReproduction and Development Laboratory, CIISA, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal. lmateus@fmv.ulisboa.pt.ORCID 0000-0002-8304-9920
University of Lisbon · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was designed to evaluate the role of E. coli α-hemolysin (HlyA) in the pathogenesis of canine pyometra, and on the immune response of canine endometrial epithelial and stromal cells. In Experiment 1, the clinical, hematological, biochemical and uterine histological characteristics of β-hemolytic and non-hemolytic E. coli pyometra bitches were compared. More (p < 0.05) metritis cases were observed in β-hemolytic E. coli pyometra uteri than in non-hemolytic E. coli pyometra uteri. β-hemolytic E. coli pyometra endometria had higher gene transcription of IL-1β and IL-8 and lower gene transcription of IL-6 than non-hemolytic E. coli pyometra endometria (p < 0.01). In Experiment 2, the immune response of endometrial epithelial and stromal cells, to hemolytic (Pyo18) and non-hemolytic E. coli strains (Pyo18 with deleted hlya-Pyo18ΔhlyA- and Pyo14) were compared. Following 4 h of incubation, Pyo18 decreased epithelial cell numbers to 54% (p < 0.001), and induced death of all stromal cells (p < 0.0001), whereas Pyo18ΔhlyA and Pyo14 had no effect on cell numbers. Compared to Pyo18ΔhlyA and Pyo14, respectively, Pyo18 induced a lower transcription level of IL-1β (0.99 vs 152.0 vs 50.9 fold increase, p < 0.001), TNFα (3.2 vs 49.9 vs 12.9 fold increase, p < 0.05) and IL-10 (0.4 vs 3.6 vs 2.6 fold increase, p < 0.001) in stromal cells, after 1 h of incubation. This may be seen as an attempt of hemolytic E. coli to delay the activation of the immune response. In conclusion, endometrial epithelial and stromal cell damage induced by HlyA is a potential relevant step of E. coli virulence in the pathogenesis of pyometra.

Indexed as

AnimalsCytokinesDog DiseasesDogsEndometriumEscherichia coli InfectionsFemaleFluorescent Antibody TechniqueImmunomodulationPyometraReal-Time Polymerase Chain ReactionTranscriptomeCytokines

Identifiers

PMID27829462
PMCPMC5103487
OpenAlexW2556637240

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.