Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-8-5
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1973-9478
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
243-5
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
QnrB9 in association with TEM-116 extended-spectrum beta-lactamase in Citrobacter freundii isolated from sewage effluent: first report from Italy.
pubmed:affiliation
Dipartimento di Scienze e Tecnologie Biomediche, University of L'Aquila, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't