title: Metallo-beta-lactamase-producing imipenem-resistant Pseudomonas aeruginosa clinical isolates in a university teaching hospital in Malaysia: detection of IMP-7 and first identification of IMP-4, VIM-2, and VIM-11.
abstract: Ninety (n = 90) imipenem-resistant Pseudomonas aeruginosa (IRPA) clinical isolates collected randomly during 2005 to 2008 from University Malaya Medical Center were assessed for the presence of different variants of metallo-beta-lactamase (MBL) genes. Polymerase chain reaction (PCR) assay detected 32 (n = 32) MBL gene PCR-positive isolates with the presence of bla(IMP) gene in 14 (n = 14) and bla(VIM) in 18 (n = 18) isolates. Four allelic variants, bla(IMP-7) (12 isolates), bla(IMP-4) (2 isolates), bla(VIM-2) (17 isolates), and bla(VIM-11) (1 isolate), of MBL genes were identified. This study is the first report of detection of bla(IMP-4), bla(VIM-2), and bla(VIM-11) MBL genes from IRPA clinical isolates in Malaysia.
authors.affiliation: Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Yalda
authors.initials: Y
authors.lastname: Khosravi
authors.forename: Sun
authors.initials: S
authors.lastname: Tee Tay
authors.forename: Jamuna
authors.initials: J
authors.lastname: Vadivelu
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001426:Bacterial Proteins / Q000235:genetics*; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D006785:Hospitals, University; D006801:Humans; D015378:Imipenem / Q000494:pharmacology*; D008296:Malaysia; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D011552:Pseudomonas Infections / Q000382:microbiology; D011550:Pseudomonas aeruginosa / Q000187:drug effects* / Q000201:enzymology* / Q000302:isolation & purification; D017422:Sequence Analysis, DNA; D018440:beta-Lactam Resistance; D001618:beta-Lactamases / Q000235:genetics*
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; D004269:DNA, Bacterial; D015378:Imipenem; D001618:beta-Lactamases