High prevalence of metallo-beta-lactamase and 16S rRNA methylase coproduction among imipenem-resistant Pseudomonas aeruginosa isolates in Brazil

Antimicrob Agents Chemother. 2007 Sep;51(9):3388-90. doi: 10.1128/AAC.00443-07. Epub 2007 Jun 18.

Abstract

Rates of metallo-beta-lactamase and 16S rRNA methylase production were investigated in 51 imipenem-resistant Pseudomonas aeruginosa clinical isolates collected from hospitals in São Paulo, Brazil. Of them, 57% and 75% produced SPM-1 and RmtD, respectively. Of note, 51% produced both enzymes, suggesting that their coproduction is already common in this geographic area.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Brazil / epidemiology
  • Cross Infection / microbiology
  • Drug Resistance, Bacterial / genetics*
  • Electrophoresis, Polyacrylamide Gel
  • Humans
  • Imipenem / pharmacology*
  • Methyltransferases / biosynthesis
  • Methyltransferases / genetics*
  • Microbial Sensitivity Tests
  • Pseudomonas Infections / epidemiology
  • Pseudomonas Infections / microbiology*
  • Pseudomonas aeruginosa / drug effects
  • Pseudomonas aeruginosa / genetics*
  • Reverse Transcriptase Polymerase Chain Reaction
  • beta-Lactamases / biosynthesis
  • beta-Lactamases / genetics*

Substances

  • Anti-Bacterial Agents
  • Imipenem
  • Methyltransferases
  • 16S rRNA (adenine(1518)-N(6)-adenine(1519)-N(6))-dimethyltransferase
  • beta-Lactamases