1991Journal of ChemotherapyRequires access

β-Lactamase Induction Antagonizes β-Lactam Susceptibilities inCitrobacter diversusandEnterobacter cloacaeClinical Isolates

B Oliva, Tea Taraborelli, Nicola Franceschini, Gianfranco Amicosante

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Abstract

Inducible beta-lactamases were obtained after exposure to several beta-lactams in clinical isolates of Enterobacter cloacae and Citrobacter diversus. Enzyme production was related to the inducer and medium composition. beta-lactamase is able to inactivate only labile compounds, thus generating minimum inhibitory concentrations higher than in the absence of the inducer; imipenem susceptibilities usually were not changed.

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What this paper is about

Inducible beta-lactamases were obtained after exposure to several beta-lactams in clinical isolates of Enterobacter cloacae and Citrobacter diversus. Enzyme production was related to the inducer and medium composition. beta-lactamase is able to inactivate only labile compounds, thus generating minimum inhibitory concentrations higher than in the absence of the inducer; imipenem susceptibilities usually were not changed.

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Available abstract

Inducible beta-lactamases were obtained after exposure to several beta-lactams in clinical isolates of Enterobacter cloacae and Citrobacter diversus. Enzyme production was related to the inducer and medium composition. beta-lactamase is able to inactivate only labile compounds, thus generating minimum inhibitory concentrations higher than in the absence of the inducer; imipenem susceptibilities usually were not changed.

Key concepts: Enterobacter cloacae, Citrobacter, Imipenem, Inducer, Microbiology, Enterobacter, Enterobacteriaceae, Enzyme inducer

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β-Lactamase Induction Antagonizes β-Lactam Susceptibilities inCitrobacter diversusandEnterobacter cloacaeClinical Isolates — Research Paper | ScholarLens