Evidence map›Paper›PMID 12543661›Full record

ArticleAntimicrobial agents and chemotherapy2003

Morphological and genetic differences in two isogenic Staphylococcus aureus strains with decreased susceptibilities to vancomycin.

Andrea Reipert, Kerstin Ehlert, Thomas Kast, Gabriele Bierbaum

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

42 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Article
  3. Knockout ofJournal of bacteriology · 2022
    Article
  4. Article
  5. Article
  6. Influence of ISAntimicrobial agents and chemotherapy · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. Polymeric nanofiber coating with tunable combinatorial antibiotic delivery prevents biofilm-associated infection in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

Andrea ReipertInstitut für Medizinische Mikrobiologie und Immunologie, Universität Bonn, D-53105 Bonn, Germany.
Kerstin Ehlert
Thomas Kast
Gabriele Bierbaum
Bayer (Germany) · DEMax Planck Institute for Developmental Biology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many VISA (vancomycin intermediately resistant Staphylococcus aureus) strains are characterized by increased cell wall biosynthesis and decreased cross-linking of the peptide side chains, leading to accumulation of free D-alanyl-D-alanine termini in the peptidoglycan, which act as false target sites for vancomycin. A spontaneous mutant of methicillin-resistant VISA strain SA137/93A (vancomycin MIC [E-test], 8 micro g/ml), called SA137/93G, showed increased resistance to vancomycin (MIC [E-test], 12 micro g/ml). Analysis of the resistance profile of the mutant revealed a loss of beta-lactam resistance with a concomitant increase in resistance to glycopeptides. In both strains, cell wall thickness was 1.4-fold greater than that of control isolates. However, cross-linking of the cell wall was drastically lower in SA137/93A than in SA137/93G. The sensitivity of strain SA137/93G to beta-lactams was due to loss of the beta-lactamase plasmid and a deletion that comprises 32.5 kb of the methicillin resistance cassette SCCmec, as well as 65.4 kb of chromosomal DNA. A spontaneous mutant of SA137/93G with higher sensitivity to vancomycin displayed a cell wall profile similar, in some respects, to that of an fmhB mutant. Results described here and elsewhere show that the only feature common to all VISA strains is a thickened cell wall, which may play a central role in the vancomycin resistance mechanism.

Indexed as

Anti-Bacterial AgentsCell WallElectrophoresis, Gel, Pulsed-FieldMethicillin ResistanceMicrobial Sensitivity TestsPhenotypeStaphylococcus aureusVancomycinVancomycin ResistanceAnti-Bacterial AgentsVancomycin

Identifiers

PMID12543661
PMCPMC151770
OpenAlexW2166000052

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.