Efficacy of linezolid against methicillin-resistant or vancomycin-insensitive Staphylococcus aureus in a model of hematogenous pulmonary infection

Antimicrob Agents Chemother. 2002 Oct;46(10):3288-91. doi: 10.1128/AAC.46.10.3288-3291.2002.

Abstract

We investigated the activities of linezolid, vancomycin, and teicoplanin in a murine model of hematogenous pulmonary infection with Staphylococcus aureus. Our results demonstrate that linezolid clearly reduced bacterial numbers in the methicillin-resistant S. aureus hematogenous infection model and significantly improved the survival rate of immunocompromised mice infected with vancomycin-insensitive S. aureus compared with vancomycin and teicoplanin. The pharmacokinetic profiles also reflected the effectiveness of linezolid.

MeSH terms

  • Acetamides / pharmacokinetics
  • Acetamides / therapeutic use*
  • Animals
  • Anti-Bacterial Agents / pharmacokinetics
  • Anti-Bacterial Agents / therapeutic use*
  • Disease Models, Animal
  • Linezolid
  • Male
  • Methicillin Resistance*
  • Mice
  • Oxazolidinones / pharmacokinetics
  • Oxazolidinones / therapeutic use*
  • Respiratory Tract Infections / drug therapy
  • Respiratory Tract Infections / microbiology
  • Respiratory Tract Infections / mortality
  • Staphylococcal Infections / drug therapy
  • Staphylococcal Infections / microbiology
  • Staphylococcal Infections / mortality
  • Staphylococcus aureus / drug effects*
  • Teicoplanin / pharmacokinetics
  • Teicoplanin / therapeutic use
  • Vancomycin / pharmacokinetics
  • Vancomycin / therapeutic use*

Substances

  • Acetamides
  • Anti-Bacterial Agents
  • Oxazolidinones
  • Teicoplanin
  • Vancomycin
  • Linezolid