STAR Protocols (Sep 2023)

Antimicrobial susceptibility testing to evaluate minimum inhibitory concentration values of clinically relevant antibiotics

  • Lucien Barnes V,
  • Douglas M. Heithoff,
  • Scott P. Mahan,
  • John K. House,
  • Michael J. Mahan

Journal volume & issue
Vol. 4, no. 3
p. 102512

Abstract

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Summary: Antimicrobial susceptibility testing is used to determine the minimum inhibitory concentration (MIC), the standard measurement of antibiotic activity. Here, we present a protocol for evaluating MIC values of clinically relevant antibiotics against bacterial isolates cultured in standard bacteriologic medium and in mammalian cell culture medium. We describe steps for pathogen identification, culturing bacteria, preparing MIC plates, MIC assay incubation, and determining MIC. This protocol can potentially optimize the use of existing antibiotics while enhancing efforts to discover new ones.For complete details on the use and execution of this protocol, please refer to Heithoff et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.

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