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Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media

  • Authors:
    • Ioannis K. Neonakis
    • Demetrios A. Spandidos
  • View Affiliations / Copyright

    Affiliations: Department of Clinical Microbiology and Microbial Pathogenesis, University Hospital of Heraklion, 71201 Heraklion, Greece, Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
    Copyright: © Neonakis et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 47
    |
    Published online on: April 8, 2022
       https://doi.org/10.3892/br.2022.1530
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Abstract

Matrix‑assisted laser desorption ionization‑time of flight mass spectrometry (MALDI‑TOF MS) enables the timely and reliable identification of microbes. The rapid identification of Gram‑negative bacteria (GNB) in bloodstream infections is of critical importance. Several protocols have been proposed for the application of MALDI‑TOF MS on samples from positive blood cultures (BCs) within the same day of BC positivity detection. The majority of these protocols include sample preparation steps with the use of chemicals or repeated centrifugations in order to avoid biases from human cells and proteins from the BC broth. These additional steps increase the hands‑on processing time and the cost of identification. A different approach is to perform a MALDI‑TOF MS analysis using biomass from briefly incubated subcultures on solid media. The present study discusses the findings of previous studies regarding the rapid identification of GNB from positive BC broth using MALDI‑TOF MS following a short‑term incubation period on solid media without any other additional steps or procedures.
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Copy and paste a formatted citation
Spandidos Publications style
Neonakis IK and Spandidos DA: Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media. Biomed Rep 16: 47, 2022.
APA
Neonakis, I.K., & Spandidos, D.A. (2022). Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media. Biomedical Reports, 16, 47. https://doi.org/10.3892/br.2022.1530
MLA
Neonakis, I. K., Spandidos, D. A."Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media". Biomedical Reports 16.6 (2022): 47.
Chicago
Neonakis, I. K., Spandidos, D. A."Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media". Biomedical Reports 16, no. 6 (2022): 47. https://doi.org/10.3892/br.2022.1530
Copy and paste a formatted citation
x
Spandidos Publications style
Neonakis IK and Spandidos DA: Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media. Biomed Rep 16: 47, 2022.
APA
Neonakis, I.K., & Spandidos, D.A. (2022). Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media. Biomedical Reports, 16, 47. https://doi.org/10.3892/br.2022.1530
MLA
Neonakis, I. K., Spandidos, D. A."Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media". Biomedical Reports 16.6 (2022): 47.
Chicago
Neonakis, I. K., Spandidos, D. A."Rapid identification of Gram‑negative pathogens from positive blood cultures using MALDI‑TOF MS following short‑term incubation on solid media". Biomedical Reports 16, no. 6 (2022): 47. https://doi.org/10.3892/br.2022.1530
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