1,720,994 research outputs found
Marchese A, Gualco L, Schito AM, Debbia EA, Schito GC. In vitro activity of ertapenem against selected respiratory pathogens
No full textViral protein synthesis during replication of bacteriophage T1.
No full textPMID: 766757 [PubMed - indexed for MEDLINE
Activity of daptomycin on biofilms produced on a plastic support by Staphylococcus spp.
No full textThe aim of this study was to assess whether the novel lipopeptide daptomycin might be capable of disrupting or inhibiting the synthesis of biofilms produced by staphylococci. Fourteen recently isolated slime-producing methicillin-susceptible (MET-S) and methicillin-resistant (MET-R) strains (three MET-S Staphylococcus aureus, three MET-R S. aureus, three MET-S Staphylococcus epidermidis, three MET-R S. epidermidis and two vancomycin-intermediate S. aureus (VISA)) were tested. Slime formation on polystyrene plates was quantified spectrophotometrically. Daptomycin(2-64 mg/L) inhibited slime synthesis by > or =80% in MET-S strains, by 60-80% in MET-R S. aureus and by 70-95% in MET-R S. epidermidis. At 64 mg/L, biofilm synthesis decreased by 80% in the VISA isolates. Daptomycin also disrupted pre-formed biofilm: >50% breakdown of initial biofilm (5h) was observed in all strains. Disruption of mature biofilms (48 h), in terms of percentage, was more variable depending on the strain, ranging from ca. 20% in a MET-R S. epidermidis strain to almost 70% in two MET-S strains (one S. aureus and one S. epidermidis). Daptomycin at concentrations achievable during therapy promoted a statistically significant inhibition of slime synthesis (preventing biofilm building) and induced slime disruption (disaggregating its structure) both in initial and mature biofilms on a plastic support in all staphylococcal strains studied
Detection of SHV-5 extended-spectrum beta-lactamase in Klebsiella pneumoniae strains isolated in Italy.
No full textIn vitro interactions between cefotetan and aminoglycosides on Klebsiella, Enterobacter and Serratia species.
No full textMicrobiological characterization of dactimicin: Antibacterial activity towards gram-positive and gram-negative bacteria.
No full textIn vitro activity of pefloxacin against gram-negative and gram-positive bacteria in comparison with other antibiotics.
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