[MASS-SPECTROMETRY IN MICROBIOLOGICAL PRACTICE OF SCIENTIFIC CENTRE OF OBSTETRICS, GYNECOLOGY AND PERINATOLOGY].
ZHURNAL MIKROBIOLOGII, EPIDEMIOLOGII I IMMUNOBIOLOGII 2016:52-58. [PMID:
27029117]
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Abstract
AIM
Comparative evaluation of species identification of microorganisms by MALDI-TOF mass-spectrometry and automatic biochemical analyzer VITEK2 Compact 30.
MATERIALS AND METHODS
Species identification of 18,400 isolates of microorganisms (staphylococci, streptococci, enterococci, enterobacteria, nonfermenting gram-negative bacteria, lactobacilli, anaerobes, yeast fungi, neisseriae), isolated from vagina of pregnant and non-pregnant women and from newborns, was carried out. Identification of the isolated microorganisms was carried out by automatic bacteriologic analyzer VITEK2 Compact30 (BioMerieuX, France) and MALDI-TOF-MS analysis method on AutofleXIII (Bruker Daltonics, Germany) mass-spectrometer.
RESULTS
Comparative identification of 2005 isolates of microorganisms was carried out. Sequencing of ribosomal RNA was used as a reference method. Authenticity of species identification my MALDI-TOF-MS analysis method was: for staphylococci (95.8%), enterococci (97.5%), enterobacteria (98.4%), nonfermenting gram-negative bacteria (93.6%), β-hemolytiC staphylococci (93.8%), lactobacilli (92.8%), yeast fungi (99.9%).
CONCLUSION
Introduction of MALDI-TOF-MS analysis technology into practical work of microbiological laboratories exceeds previously used methods of microbiological testing in terms of speed; cost and authenticity of identification of a wide spectrum of microorganisms.
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