Title : In vitro infection model characterizing the effect of efflux pump inhibition on prevention of resistance to levofloxacin and ciprofloxacin in Streptococcus pneumoniae.

Pub. Date : 2007 Nov

PMID : 17846144






8 Functional Relationships(s)
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1 The MICs of ciprofloxacin and levofloxacin for Spn-058 were both 1 microg/ml when susceptibility testing was conducted with each antibiotic alone and with each antibiotic in the presence of reserpine. Levofloxacin DEAF1 transcription factor Homo sapiens
2 For Spn-058, simulated regimens of ciprofloxacin at 750 mg every 12 h or levofloxacin at 500 mg QD were associated with the emergence of fluoroquinolone resistance. Levofloxacin DEAF1 transcription factor Homo sapiens
3 However, the use of ciprofloxacin at 750 mg every 12 h and levofloxacin at 500 mg QD in combination with reserpine rapidly killed Spn-058 and prevented the emergence of resistance. Levofloxacin DEAF1 transcription factor Homo sapiens
4 For Spn-RC2, levofloxacin at 500 mg QD was associated with the emergence of resistance, but again, the resistance was prevented when this levofloxacin regimen was combined with reserpine. Levofloxacin DEAF1 transcription factor Homo sapiens
5 Levofloxacin at 750 mg QD, with and without reserpine, effectively eradicated Spn-058 and Spn-RC2 without selecting for fluoroquinolone resistance. Levofloxacin DEAF1 transcription factor Homo sapiens
6 Levofloxacin at 750 mg QD, with and without reserpine, effectively eradicated Spn-058 and Spn-RC2 without selecting for fluoroquinolone resistance. Levofloxacin DEAF1 transcription factor Homo sapiens
7 These studies also showed that ciprofloxacin was a better inducer of EP expression than levofloxacin in both Spn-058 and Spn-RC2. Levofloxacin DEAF1 transcription factor Homo sapiens
8 These studies also showed that ciprofloxacin was a better inducer of EP expression than levofloxacin in both Spn-058 and Spn-RC2. Levofloxacin DEAF1 transcription factor Homo sapiens