Evaluation of a loop-mediated isothermal amplification-based methodology to detect carbapenemase carriage in Acinetobacter clinical isolates

Antimicrob Agents Chemother. 2014 Dec;58(12):7538-40. doi: 10.1128/AAC.03870-14. Epub 2014 Sep 15.

Abstract

Carbapenem-resistant Acinetobacter baumannii is a major source of nosocomial infections worldwide and is mainly associated with the acquisition of OXA-type carbapenemases and, to a lesser extent, metallo-β-lactamases (MBLs). In this study, 82 nonepidemiologically related Acinetobacter strains carrying different types of OXA or MBL enzymes were tested using the Eazyplex system, a loop-mediated isothermal amplification (LAMP)-based method to rapidly detect carbapenemase carriage. The presence/absence of carbapenem-hydrolyzing enzymes was correctly determined for all isolates in <30 min.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acinetobacter Infections / microbiology
  • Acinetobacter baumannii / drug effects
  • Acinetobacter baumannii / enzymology
  • Acinetobacter baumannii / genetics*
  • Acinetobacter baumannii / isolation & purification
  • Anti-Bacterial Agents / pharmacology
  • Bacterial Proteins / genetics*
  • Carbapenems / pharmacology
  • Drug Resistance, Multiple, Bacterial / genetics*
  • Humans
  • Nucleic Acid Amplification Techniques / instrumentation
  • Nucleic Acid Amplification Techniques / methods*
  • beta-Lactamases / genetics*

Substances

  • Anti-Bacterial Agents
  • Bacterial Proteins
  • Carbapenems
  • beta-Lactamases
  • carbapenemase
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