Evidence map›Paper›PMID 25151204›Full record

ArticleThe Journal of antimicrobial chemotherapy2015

Tigecycline suppresses toxin A and B production and sporulation in Clostridium difficile.

Michael John Aldape, Dustin Delaney Heeney, Amy Evelyn Bryant, Dennis Leroy Stevens

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

23 citing papers in PubMed, 49 citations in OpenAlex.

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  10. Transcriptome Analysis of theFrontiers in microbiology · 2020
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  12. Antibacterial Activity ofFrontiers in cellular and infection microbiology · 2019
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  14. Effect ofFrontiers in microbiology · 2018
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  15. Pomegranate extract specifically inhibitsInfection and drug resistance · 2018
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  16. Novel Antimicrobials for the Treatment ofFrontiers in medicine · 2018
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  20. Frequency of antibiotic associated diarrhea caused byGastroenterology and hepatology from bed to bench · 2017
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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

4 authors at 1 institution in 1 country.

Michael John AldapeDepartment of Veterans Affairs Medical Center, 500 W. Fort Street, Boise, ID 83702, USA mike.aldape@va.gov.
Dustin Delaney HeeneyDepartment of Veterans Affairs Medical Center, 500 W. Fort Street, Boise, ID 83702, USA.
Amy Evelyn BryantDepartment of Veterans Affairs Medical Center, 500 W. Fort Street, Boise, ID 83702, USA University of Washington School of Medicine, 1959 NE Pacific Street, Seattle, WA 98195, USA.
Dennis Leroy StevensDepartment of Veterans Affairs Medical Center, 500 W. Fort Street, Boise, ID 83702, USA University of Washington School of Medicine, 1959 NE Pacific Street, Seattle, WA 98195, USA.
University of Washington · US

Funding

Women's health: interplay of maternal diet and key demographics on neurological health in the rural frontier and remote WestP20GM103408 · NIGMS · UNIVERSITY OF IDAHO · PI Scott A Minnich · 2012 to 2026
$59.8M
UNDERGRADUATE COLLEGE OUTREACH PROGRAMP20RR016454 · NCRR · UNIVERSITY OF IDAHO · PI CHASE, JENNIFER R · 2001 to 2011
$35.3M
NCRR NIH HHS P20RR016454NIGMS NIH HHS P20 GM103408NIGMS NIH HHS P20GM103408
6 · The paper itself

Abstract

backgroundClostridium difficile infection (CDI) is mediated by potent extracellular toxins and is spread largely via bacterial spores. We and others have shown that some antibiotics stimulate C. difficile toxin production in a strain-specific manner; however, the effects of newer anti-C. difficile antibiotics on this process remain to be investigated.

methodsThe effects of the protein synthesis inhibitor tigecycline on sporulation and toxin A and toxin B production were compared in historical (strain 9689) and hypervirulent BI/NAP1/027 (strain 5325) isolates of C. difficile in vitro.

resultsTigecycline at 1/4× MIC stimulated an increased and earlier toxin A and/or B gene expression in both the historical and the hypervirulent strains, although a commensurate increase in toxin protein production was observed only in the 9689 strain. In fact, in the hypervirulent 5325 strain, toxin production was dramatically suppressed. By comparison, subinhibitory concentrations of vancomycin and metronidazole also stimulated increased protein toxin production by the historical, but not the hypervirulent, strain. In addition, tigecycline dose-dependently reduced viable spore production by both the 9689 and 5325 strains. Vancomycin treatment also suppressed spore formation in both C. difficile strains; however, metronidazole, while reducing spore formation in the 9689 strain, stimulated a near 2 log increase in spore production by the 5325 isolate.

conclusionsIn summary, these findings suggest that the treatment of CDI patients with tigecycline could effectively both control disease progression and limit its spread by disrupting sporulation.

Indexed as

Anti-Bacterial AgentsBacterial ProteinsBacterial ToxinsClostridioides difficileEnterotoxinsHumansMicrobial Sensitivity TestsMinocyclineSpores, BacterialTigecyclineAnti-Bacterial AgentsBacterial ProteinsBacterial ToxinsEnterotoxinsMinocyclinetcdA protein, Clostridium difficileTigecyclinetoxB protein, Clostridium difficileantibioticshuman diseaseinfectious diseasespathogenic bacteria

Identifiers

PMID25151204
PMCPMC4267498
OpenAlexW2113335688

What OpenQuestion holds

Textmetadata
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.