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Detección de resistencia a agentes antibacterianos mediante MALDI-TOF espectrometría de masas

Authors: Zboromyrska, Yuliya; Ferrer-Navarro, Mario; Marco Reverté, Francesc; Vila Estapé, Jordi;

Detección de resistencia a agentes antibacterianos mediante MALDI-TOF espectrometría de masas

Abstract

En la última década hemos asistido a un notable incremento en el número de cepas aisladas en el medio hospitalario que son productoras de β-lactamasas de espectro extendido (BLEE) o, más recientemente, de carbapenemasas. Esta situación hace patente la necesidad de disponer de un sistema de detección rápida de estos mecanismos de resistencia que permita seleccionar de forma precoz el antibiótico más adecuado para poder mejorar la asistencia al paciente. Estudios recientes avalan la posibilidad de usar sistemas de espectrometría de masas (MS), específicamente sistemas MALDI-TOF (Matrix-Assisted Laser Desorption/Ionization, Time-Of-Flight) para identificar determinados mecanismos de resistencia ya que su empleo ofrece diversas ventajas. En primer lugar, el coste económico de cada determinación es claramente inferior al de las técnicas moleculares clásicas de detección de genes de resistencia. En segundo lugar, la detección de resistencias mediante MALDI-TOF permite reducir el tiempo de obtención de resultados en comparación con los métodos de rutina actualmente empleados. Por último, cabe la posibilidad de que nos permita detectar enzimas no descritas previamente, de las que no se dispone de información acerca de los genes que las codifican. Por todo ello, creemos que ésta puede ser una metodología muy útil para implementar en los laboratorios de microbiología clínica. En esta revisión se pretende exponer los últimos avances en esta área.

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Spain
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Keywords

Antibacterial agents, Spectrophotometry, Drug resistance, Microbiologia mèdica, Medicaments antibacterians, Espectrofotometria, Medical microbiology, Resistència als medicaments

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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