Source:http://linkedlifedata.com/resource/pubmed/id/11864947
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
2002-2-26
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pubmed:abstractText |
The in vitro activity of clinafloxacin was studied in comparison with ciprofloxacin, levofloxacin, moxifloxacin, nalidixic acid, sparfloxacin and trovafloxacin against Acinetobacter baumannii clinical isolates. Clinafloxacin showed a MIC(90) of 4 mg/L, whereas the remaining quinolones showed a MIC(90) equal to or higher than 16 mg/L. MIC(50) determination in the presence of reserpine resulted in a two-fold decrease, except for trovafloxacin, which decreased four-fold, and for moxifloxacin and nalidixic acid, which did not change. The effect of reserpine was most pronounced among strains with a low level of resistance to quinolones. The MIC of clinafloxacin for strains with no mutation in either gyrA or parC genes ranged from 0.008 to 0.25 mg/L. In strains with a single mutation at amino acid codon Ser83 of the gyrA gene, the MIC of clinafloxacin ranged from 0.12 to 1 mg/L, whereas strains with a double mutation, one in the gyrA gene and another in the parC gene, showed a range of MIC of clinafloxacin from 1 to 8 mg/L. Therefore, clinafloxacin shows good activity against strains carrying a single mutation in the gyrA gene, and hence a second mutation is required for the microorganism to express resistance.
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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 |
Mar
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pubmed:issn |
0305-7453
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
49
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
471-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11864947-Acinetobacter,
pubmed-meshheading:11864947-Acinetobacter Infections,
pubmed-meshheading:11864947-Anti-Infective Agents,
pubmed-meshheading:11864947-Drug Resistance, Bacterial,
pubmed-meshheading:11864947-Fluoroquinolones,
pubmed-meshheading:11864947-Genes, Bacterial,
pubmed-meshheading:11864947-Humans,
pubmed-meshheading:11864947-Microbial Sensitivity Tests,
pubmed-meshheading:11864947-Reserpine
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pubmed:year |
2002
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pubmed:articleTitle |
Activity of clinafloxacin, compared with six other quinolones, against Acinetobacter baumannii clinical isolates.
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pubmed:affiliation |
Institut Clinic d'Infeccions i Immunologia, IDIBAPS, Facultat de Medicina, Universitat de Barcelona, Villarroel 170, 08036 Barcelona, Spain. vila@medizina.ub.es
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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