Staphylococcus hominis subspecies can be identified by SDS-PAGE or MALDI-TOF MS profiles

Using MALDI-TOF-MS to test Staphylococcus aureus–infected vitreous

PURPOSE This study aimed to establish a method for testing Staphylococcus aureus in the vitreous of endophthalmitis with matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS), which is simple, fast, and sensitive. METHODS S. aureus at different numbers was either mixed with homogenized vitreous or inoculated in porcine eyes for culturing, followed by homo...

Butyricimonas virosa bacteraemia identified by MALDI-TOF

We read with interest the recent report by Ulger Toprak et al. [1] reporting the first case of Butyricimonas virosa bacteraemia published earlier this year. Here we describe the case of a 72year-old man with colon cancer who presented with septic shock after aortic aneurysm surgery, with Butyricimonas virosa recovered from blood cultures. This anaerobic bacteria and related species had been pre...

Dossier MALDI - TOF ■ Oligonucleotide analysis by MALDI - MS

Matrix-assisted laser desorption (MALDI) time-offlight (TOF) mass spectrometry (MS) has been successfully used for oligonucleotide sequence confirmation by mass analysis of fragments generated by concentration-dependent exonuclease digestion. This approach is particularly well-suited to the analysis of synthetic DNA due to the relatively short length of the DNA strands. Additionally, an importa...

Characterization of fengycin homologues produced by Bacillus subtilis K1 by MALDI-TOF tandem mass spectrometry (MALDI TOF MS/MS)

Can MALDI-TOF mass spectrometry be used with intravascular catheters?

INTRODUCTION The use of the matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry has shown to be effective and fast in some clinical specimens for the identification of colonizing microorganisms. The objective of the study was to analyze the validity values for the prediction of colonization and catheter-related bloodstream infection (C-RBSI) of the MALDI-TOF...