| Literature DB >> 25694522 |
Costas C Papagiannitsis1, Vendula Študentová2, Radoslaw Izdebski3, Olga Oikonomou4, Yvonne Pfeifer5, Efthimia Petinaki4, Jaroslav Hrabák6.
Abstract
A comparison of a matrix-assisted laser desorption ionization-time of flight mass spectrometric (MALDI-TOF MS) meropenem hydrolysis assay with the Carba NP test showed that both methods exhibited low sensitivity (approximately 76%), mainly due to the false-negative results obtained with OXA-48-type producers. The addition of NH4HCO3 to the reaction buffer for the MALDI-TOF MS assay dramatically improved its sensitivity (98%). Automatic interpretation of the MALDI-TOF MS assay, using the MBT STAR-BL software, generally agreed with the results obtained after manual analysis. For the Carba NP test, spectrophotometric analysis found six additional carbapenemase producers.Entities:
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Year: 2015 PMID: 25694522 PMCID: PMC4400744 DOI: 10.1128/JCM.03094-14
Source DB: PubMed Journal: J Clin Microbiol ISSN: 0095-1137 Impact factor: 5.948