Evidence map›Paper›PMID 19642979›Full record

ArticleBMC microbiology2009

Transcriptional profiling avian beta-defensins in chicken oviduct epithelial cells before and after infection with Salmonella enterica serovar Enteritidis.

Katie L Ebers, C Yan Zhang, M Zhenyu Zhang, R Hartford Bailey, Shuping Zhang

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.3field-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

19 citing papers in PubMed, 62 citations in OpenAlex.

  1. Review
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  6. Changes in the Expression of AvianThe journal of poultry science · 2018
    Article
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  9. Role ofFrontiers in microbiology · 2016
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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

5 authors at 1 institution in 1 country.

Katie L EbersDepartment of Pathobiology and Population Medicine, College of Veterinary Medicine, Mississippi State University, PO Box 97813, Pearl, MS 39288, USA. kleech@cvm.msstate.edu
C Yan Zhang
M Zhenyu Zhang
R Hartford Bailey
Shuping Zhang
Mississippi State University · US

Funding

SUMMER RESEARCH EXPERIENCE FOR VETERINARY STUDENTS (T35)T35RR007071 · NCRR · MISSISSIPPI STATE UNIVERSITY · PI LAWRENCE, MARK L · 2001 to 2010
$618k
NCRR NIH HHS 5T35RR007071
6 · The paper itself

Abstract

backgroundSalmonella enterica serovar Enteritidis (SE) colonizes the ovary and oviduct of chickens without causing overt clinical signs which can lead to SE-contamination of the content and membrane of shell-eggs as well as hatchery eggs. The organism utilizes the Salmonella Pathogenicity Island-2 encoded type III secretion system (T3SS-2) to promote persistence in the oviduct of laying hens. In this study, reverse transcriptase-polymerase chain reaction (RT-PCR) was carried out to determine the expression profiles of 14 known avian beta defensins (AvBDs) in primary chicken oviduct epithelial cells (COEC) before and after infections with a wild type SE strain and T3SS mutant SE strains carrying an inactivated sipA or pipB gene.

resultsBased on the expression levels in uninfected COEC, AvBDs can be loosely grouped into three categories with AvBD4-5 and AvBD9-12 being constitutively expressed at high levels; AvBD1, AvBD3, and AvBD13-14 at moderate levels; and AvBD2 and AvBD6-8 at minimal levels. Infection with the wild type SE strain temporarily repressed certain highly expressed AvBDs and induced the expression of minimally expressed AvBDs. The pipB mutant, compared to the wild type strain, had reduced suppressive effect on the expression of highly expressed AvBDs. Moreover, the pipB mutant elicited significantly higher levels of the minimally expressed AvBDs than the wild type SE or the sipA mutant did.

conclusionChicken oviduct epithelial cells express most of the known AvBD genes in response to SE infection. PipB, a T3SS-2 effector protein, plays a role in dampening the beta-defensin arm of innate immunity during SE invasion of chicken oviduct epithelium.

Indexed as

AnimalsApoptosisbeta-DefensinsCells, CulturedChickensEpithelial CellsFemaleGene Expression ProfilingOviductsPoultry DiseasesReverse Transcriptase Polymerase Chain ReactionSalmonella enteritidisSalmonella Infections, Animalbeta-Defensins

Identifiers

PMID19642979
PMCPMC2728736
OpenAlexW2081222766

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.