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Revista Bio Ciencias
Article . 2025 . Peer-reviewed
Data sources: Crossref
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Identificación de genes de resistencia a carbapenémicos en Pseudomonas aeruginosa

Carbapenemasas en P. aeruginosa
Authors: Christian González; A.N. Rodríguez-Ocampo; P.E. Ramos-Ramírez; J.L. Arvizu-Gómez; L.C Ramos-Ramírez;

Identificación de genes de resistencia a carbapenémicos en Pseudomonas aeruginosa

Abstract

Pseudomonas aeruginosa es un patógeno oportunista capaz de ocasionar diferentes infecciones nosocomiales. Se ha reportado que la bacteria presenta resistencia intrínseca y adquirida a antibióticos, debido a la baja permeabilidad de su membrana externa, la sobreexpresión de bombas de eflujo y la producción de enzimas que degradan el antibiótico. El objetivo del presente estudio fue identificar genes de resistencia a carbapenémicos (Metalo-β-lactamasas VIM e IMP) en 50 cepas de P. aeruginosa. La identificación y susceptibilidad antimicrobiana se realizó mediante el sistema automatizado VITEK-2. Posteriormente se realizó la búsqueda de los genes rpoB, blaVIM y blaIMP por reacción en cadena de la polimerasa; la determinación fenotípica de Metalo-b-lactamasas se llevó a cabo por la prueba de sinergia de doble disco. Los resultados obtenidos corroboran que el 100% de las cepas analizadas corresponden a P. aeruginosa. El perfil de sensibilidad mostró que 82% de los aislados presentaron resistencia al imipenem, mientras que el 46% mostraron sensibilidad a la amikacina; se evidenció la presencia del gen blaIMP en 90% de los aislados siendo el más frecuente, seguido de blaVIM con el 32% de los casos. Fenotípicamente, se obtuvo un resultado positivo en el 88% de las cepas de P. aeruginosa.

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selected citations
These citations are derived from selected sources.
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).
BIP!Citations provided by BIP!
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.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold