Source:http://linkedlifedata.com/resource/pubmed/id/20685627
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2010-8-5
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pubmed:abstractText |
The aim of the present study was to investigate the mechanism of quinolone and beta-lactam resistance in an isolate of Citrobacter freundii PC2/08 collected from sewage effluent from l'Aquila, Italy. QnrB-9 and bla(TEM-116 )were co-expressed in a large plasmid identified in C. freundi PC2/08 strain. Compared to TEM-1, TEM-116 showed two single mutations: V84I and A184V. The plPC2/08 plasmid conferred resistance to several beta-lactams and fluoroquinolones. Tazobactam could be considered a good inhibitor whereas clavulanic acid was unable to restore susceptibility to amoxicillin. The QnrB-9 element seems to confer the same level of resistance to levofloxacin and ciprofloxacin with minimum inhibitory concentration (MIC) values of 4 mg/l for either. In this study, we confirm the common association of plasmid-mediated quinolone resistance with extended-spectrum beta-lactamase (ESbetaL) production. This is the first finding in Italy of qnrB9 and TEM-116 in a non-clinical or animal strain.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
1973-9478
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
22
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
243-5
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pubmed:meshHeading |
pubmed-meshheading:20685627-Citrobacter freundii,
pubmed-meshheading:20685627-Electroporation,
pubmed-meshheading:20685627-Genes, Bacterial,
pubmed-meshheading:20685627-Isoelectric Focusing,
pubmed-meshheading:20685627-Italy,
pubmed-meshheading:20685627-Microbial Sensitivity Tests,
pubmed-meshheading:20685627-Mutation,
pubmed-meshheading:20685627-Plasmids,
pubmed-meshheading:20685627-Polymerase Chain Reaction,
pubmed-meshheading:20685627-Sewage,
pubmed-meshheading:20685627-beta-Lactam Resistance,
pubmed-meshheading:20685627-beta-Lactamases
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pubmed:year |
2010
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pubmed:articleTitle |
QnrB9 in association with TEM-116 extended-spectrum beta-lactamase in Citrobacter freundii isolated from sewage effluent: first report from Italy.
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pubmed:affiliation |
Dipartimento di Scienze e Tecnologie Biomediche, University of L'Aquila, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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