Evidence map›Paper›PMID 22205821›Full record

ArticleJournal of clinical microbiology2012

Evidence of diversity among epidemiologically related carbapenemase-producing Acinetobacter baumannii strains belonging to international clonal lineage II.

Fabrizia Minandri, Silvia D'Arezzo, Luísa C S Antunes, Christine Pourcel, Luigi Principe, Nicola Petrosillo, Paolo Visca

Abstract read
In one paragraph

Article in Journal of clinical microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. High-Resolution Genomic Surveillance of Carbapenem-ResistantAntibiotics (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Diversity of Oxacillinases and Sequence Types in Carbapenem-ResistantInternational journal of environmental research and public health · 2021
    Article
  4. blaBMC infectious diseases · 2019
    Article
  5. Article
  6. Active efflux pump adeB is involved in multidrug resistance ofExperimental and therapeutic medicine · 2017
    Article
  7. Article
  8. Article
  9. Faecal carriage of carbapenemase-producing Gram-negative bacilli in hospital settings in southern France.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2015
    Article
  10. Article
  11. French regional surveillance program of carbapenemase-producing Gram-negative bacilli: results from a 2-year period.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2014
    Article
  12. Article
  13. Article
  14. Article
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  17. Article
  18. 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.

Fabrizia MinandriDipartimento di Biologia, Universita` Roma Tre,a and Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani IRCCS.
Silvia D'Arezzo
Luísa C S Antunes
Christine Pourcel
Luigi Principe
Nicola Petrosillo
Paolo Visca

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Carbapenem-resistant Acinetobacter baumannii strains belonging to international clonal lineage II (ICL-II) have become predominant in intensive care units (ICUs) throughout Italy. Between 2005 and 2009, the carbapenem-hydrolyzing class D β-lactamase (CHDL) bla(OXA-23) gene became more prevalent than bla(OXA-58) among epidemic ICL-II strains showing extensive genetic similarity. These findings posed the question of whether CHDL gene replacement occurred in the homogeneous ICL-II population or a new OXA-23 clone(s) emerged and spread in ICUs. In this study, the changes in the ICL-II A. baumannii population and CHDL gene carriage were investigated in 30 genetically related isolates collected during the bla(OXA-58)-to-bla(OXA-23) transition period. Pulsotyping, randomly amplified polymorphic DNA (RAPD) analysis, and multilocus sequence typing (MLST) results were combined with multilocus variable-number tandem-repeat (VNTR) analysis (MLVA-8), siderotyping, and plasmid profiling to improve genotype-based discrimination between isolates. Pulsotyping, RAPD analysis, and MLST clustered isolates into a single type. MLVA-8 identified 19 types that clustered into three complexes. All OXA-23-producing isolates formed a single complex, while OXA-58 producers were split into two complexes. Southern blot analysis of the physical localization and genetic context of the CHDL genes showed that bla(OXA-58) was invariably located on plasmids, while bla(OXA-23) was present within Tn2006 on the chromosome or both the chromosome and plasmids. These data indicate that the apparently homogeneous population of CHDL-producing ICL-II strains was composed of several independent strains and that, between 2005 and 2009, distinct OXA-23 producers displaced the preexisting OXA-58 producers. Thus, MLVA-8 appears to be a suitable tool not only for investigating A. baumannii population structure but also for high-resolution epidemiological typing.

Indexed as

Genetic VariationAcinetobacter baumanniiAcinetobacter InfectionsBacterial Proteinsbeta-LactamasesCluster AnalysisElectrophoresis, Gel, Pulsed-FieldGenotypeHumansItalyMinisatellite RepeatsMultilocus Sequence TypingPlasmidsRandom Amplified Polymorphic DNA TechniqueSiderophoresBacterial Proteinsbeta-LactamasescarbapenemaseSiderophores

Identifiers

PMID22205821
PMCPMC3295171

What OpenQuestion holds

Textmetadata
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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.