Article (Scientific journals)
Prevalence and characterization of metallo-β-lactamases in clinical isolates of Pseudomonas aeruginosa
Luzzaro, F.; Endimiani, A.; Docquier, Jean-Denis et al.
2004In Diagnostic Microbiology and Infectious Disease, 48 (2), p. 131-135
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Keywords :
DNA probe; DNA sequence; Pseudomonas aeruginosa
Abstract :
[en] The prevalence and the type(s) of metallo-β-lactamases (MBLs) produced by isolates of Pseudomonas aeruginosa were investigated. During 2001, 506 nonduplicate isolates were obtained from hospitalized patients. Eighty-two strains were selected because of resistance to carbapenems and/or ceftazidime. Screening for MBL production was performed in the latter isolates by the Etest MBL strips (AB Biodisk, Solna, Sweden) and by a broth microdilution method measuring minimum inhibitory concentrations (MICs) of imipenem alone and in the presence of metal-chelating agents (EDTA and o-phenanthroline). Specific DNA probes were used to investigate the presence of genes coding for IMP- or VIM-type enzymes. Overall, four isolates of P. aeruginosa (obtained from independent patients) were found to carry a blaVIM gene. Polymerase chain reaction (PCR) experiments and DNA sequencing revealed that the VIM-2 determinant was present in three cases, whereas VIM-1 was detected in one isolate. Surveillance programs should be adopted to avoid the spread of these worrisome resistance genes. © 2004 Elsevier Inc. All rights reserved.
Disciplines :
Microbiology
Author, co-author :
Luzzaro, F.;  Laboratorio di Microbiologia, Osp. Circolo and Univ. dell'Insubria, I-21100 Varese, Italy
Endimiani, A.;  Laboratorio di Microbiologia, Osp. Circolo and Univ. dell'Insubria, I-21100 Varese, Italy
Docquier, Jean-Denis ;  Université de Liège - ULiège > Département des sciences de la vie > Centre d'ingénierie des protéines
Mugnaioli, C.;  Dipartimento di Biologia Molecolare, Sezione di Microbiologia, Università di Siena, I-53100 Siena, Italy
Bonsignori, M.;  Laboratorio di Microbiologia, Osp. Circolo and Univ. dell'Insubria, I-21100 Varese, Italy
Amicosante, G.;  Dipto. Sci. e Tecnologie Biomediche, Università di l'Aquila, I-67100 L'Aquila, Italy
Rossolini, G. M.;  Dipartimento di Biologia Molecolare, Sezione di Microbiologia, Università di Siena, I-53100 Siena, Italy
Toniolo, A.;  Laboratorio di Microbiologia, Osp. Circolo and Univ. dell'Insubria, I-21100 Varese, Italy
Language :
English
Title :
Prevalence and characterization of metallo-β-lactamases in clinical isolates of Pseudomonas aeruginosa
Publication date :
2004
Journal title :
Diagnostic Microbiology and Infectious Disease
ISSN :
0732-8893
Publisher :
Elsevier Inc.
Volume :
48
Issue :
2
Pages :
131-135
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
European Training and Mobility of Researchers Network on Metallo-beta-Lactaqmases (grant no. FMRX-CT98-0232)
Available on ORBi :
since 24 November 2020

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