Document Detail


Detection of NDM-1, VIM-1, KPC, OXA-48, and OXA-162 carbapenemases by matrix-assisted laser desorption ionization-time of flight mass spectrometry.
MedLine Citation:
PMID:  22553235     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) is a potentially useful tool for the detection of antimicrobial resistance, especially that conferred by β-lactamases. Here we describe a modification of a previously reported MALDI-TOF MS meropenem hydrolysis assay. The modified method was validated on 108 carbapenemase-producing members of the Enterobacteriaceae, two NDM-1-producing Acinetobacter baumannii isolates, and 35 carbapenem-resistant enterobacteria producing no carbapenemase. The detection of carbapenemases by MALDI-TOF MS seems to be a powerful, quick, and cost-effective method for microbiological laboratories.
Authors:
Jaroslav Hrabák; Vendula Studentová; Radka Walková; Helena Zemlicková; Vladislav Jakubu; Eva Chudácková; Marek Gniadkowski; Yvonne Pfeifer; John D Perry; Kathryn Wilkinson; Tamara Bergerová
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2012-05-02
Journal Detail:
Title:  Journal of clinical microbiology     Volume:  50     ISSN:  1098-660X     ISO Abbreviation:  J. Clin. Microbiol.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-19     Completed Date:  2012-10-17     Revised Date:  2013-04-15    
Medline Journal Info:
Nlm Unique ID:  7505564     Medline TA:  J Clin Microbiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2441-3     Citation Subset:  IM    
Affiliation:
Department of Microbiology, Faculty of Medicine and University Hospital in Plzen, Charles University in Prague, Plzen, Czech Republic. jaroslav.hrabak@lfp.cuni.cz
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MeSH Terms
Descriptor/Qualifier:
Acinetobacter baumannii / enzymology*
Bacterial Proteins / metabolism*
Enterobacteriaceae / enzymology*
Enterobacteriaceae Infections / microbiology
Humans
Hydrolysis
Microbial Sensitivity Tests / methods
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / methods*
Thienamycins / metabolism*
beta-Lactamases / metabolism*
Chemical
Reg. No./Substance:
0/Bacterial Proteins; 0/Thienamycins; 96036-03-2/meropenem; EC 3.5.2.6/beta-Lactamases; EC 3.5.2.6/carbapenemase
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