Activity of linezolid and tedizolid against clinical isolates of methicillin-resistant and methicillin and linezolid resistant Staphylococcus aureus: an in vitro comparison
| العنوان: | Activity of linezolid and tedizolid against clinical isolates of methicillin-resistant and methicillin and linezolid resistant Staphylococcus aureus: an in vitro comparison |
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| المؤلفون: | Peñuelas, M., Candel, F. J., Lejarraga, C., López-González, L., José Manuel Viñuela Prieto, López Mendoza, D. |
| المصدر: | Europe PubMed Central Scopus-Elsevier |
| مصطلحات موضوعية: | Methicillin-Resistant Staphylococcus aureus, Staphylococcus aureus, Bacterial Proteins, Drug Resistance, Bacterial, Linezolid, Tetrazoles, Microbial Sensitivity Tests, Staphylococcal Infections, Oxazolidinones, Anti-Bacterial Agents |
| الوصف: | The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in Spain is approximately 20-30%. However, resistance to linezolid is rare, and the main reports are from nosocomial outbreaks. The objective of the present study was to compare the in vitro susceptibility of linezolid with that of tedizolid against MRSA isolates and methicillin-and linezolid-resistant isolates (MLRSA) mediated by the cfr gene.The in vitro susceptibility of linezolid and tedizolid was determined using the E-test with 18 MRSA strains and 18 cfr-mediated MLRSA strains obtained from clinical isolates in the microbiology service of a tertiary university hospital.All MRSA strains were susceptible to both antibiotics. Analysis of the MRSA isolates revealed that the MIC50 and MIC90 of linezolid were 1.5 and 2 mg/L, respectively; those of tedizolid were 0.25 and 0.4 mg/L. The MIC50 and MIC90 of tedizolid remained at 0.75 and 1 mg/L against the MLRSA strains (MIC90 ≥ 8 mg/L).Both for MRSA and for MLRSA, the MICs obtained for tedizolid were at least 2 dilutions lower than those of linezolid, thus demonstrating between 2 and 4 times greater activity in vitro than linezolid. |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::d7986cc67b0f0a93d1de33e86bfe1463Test http://europepmc.org/abstract/med/27374726Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.pmid.dedup....d7986cc67b0f0a93d1de33e86bfe1463 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |