Evidence map›Paper›PMID 15047514›Full record

ArticleAntimicrobial agents and chemotherapy2004

Expression of acrB, acrF, acrD, marA, and soxS in Salmonella enterica serovar Typhimurium: role in multiple antibiotic resistance.

Deborah J Eaves, Vito Ricci, Laura J V Piddock

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
–field-weighted citation impact
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

73 citing papers in PubMed.

  1. Review
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  3. Review
  4. Natural Inhibitors ofInternational journal of molecular sciences · 2024
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  6. Review
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  8. Article
  9. Comparison of Phenotype and Genotype Virulence and Antimicrobial Factors ofInternational journal of molecular sciences · 2023
    Article
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  11. Article
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13 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

3 authors.

Deborah J EavesAntimicrobial Agents Research Group, Division of Immunity and Infection, University of Birmingham, Birmingham B15 2TT, United Kingdom.
Vito Ricci
Laura J V Piddock

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Comparative reverse transcription-PCR in combination with denaturing high-pressure liquid chromatography analysis was used to determine the levels of expression of soxS, marA, acrF, acrB, and acrD in multiple-antibiotic-resistant (MAR) Salmonella enterica serovar Typhimurium isolates and mutants of S. enterica serovar Typhimurium SL1344 with defined deletions. Posttherapy MAR clinical isolates had increased levels of expression of all genes except soxS. S. enterica serovar Typhimurium SL1344 Delta acrB expressed 7.9-fold more acrF than the parent strain. A strain with an acrF deletion expressed 4.6-fold more acrB. Deletion of acrB and/or acrF resulted in 2.7- to 4.3-fold more marA mRNA and 3.6- to 4.9-fold increases in the levels of expression of acrD but had a variable effect on the expression of soxS. All mutants were hypersusceptible to antibiotics, dyes, and detergents; but the MIC changes were more noticeable for SL1344 with the acrB deletion than for the mutant with the acrF disruption. These mutants had different but overlapping phenotypes, and the concentrations of ciprofloxacin accumulated by the mutants were different. These data suggest that acrB, acrF, and acrD are coordinately regulated and that their expression influences the expression of the transcriptional activators marA and soxS.

Indexed as

Anti-Infective AgentsBacterial ProteinsCarrier ProteinsChromatography, High Pressure LiquidCiprofloxacinDNA PrimersDrug Resistance, Multiple, BacterialGenes, BacterialHumansMembrane Transport ProteinsMicrobial Sensitivity TestsMutationProtein FoldingReverse Transcriptase Polymerase Chain ReactionRNA, BacterialSalmonella entericaAcrB protein, Salmonella entericaAcrD protein, Salmonella entericaAcrF protein, Salmonella entericaAnti-Infective AgentsBacterial ProteinsCarrier ProteinsCiprofloxacinDNA PrimersMarA protein, Salmonella entericaMembrane Transport ProteinsRNA, BacterialSoxS protein, Salmonella entericaTrans-Activators

Identifiers

PMID15047514
PMCPMC375282

What OpenQuestion holds

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Read underepoch 390

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.