Article ID Journal Published Year Pages File Type
5668961 Journal of Infection and Chemotherapy 2017 4 Pages PDF
Abstract

This is the first report to test the loading dosage of colistin against Pseudomonas aeruginosa, including MDRP. Using in vivo murine thigh infection model, in the loading dosage regimen (Day 1:50 mg/kg q12 h, Day 2-3: 25 mg/kg q12 h) group, 5 to 6 log10 CFU/ml reduction compared with control were observed for both strains of P. aeruginosa with colistin MIC 0.5 and 1 μg/mL at 72 h. But, similar reduction was observed for the strains with colistin MIC 0.5 μg/mL only in normal dosage regimen (Day 1-3: 25 mg/kg q12 h) group. For P. aeruginosa with colistin MIC 1 μg/mL, colistin loading dosage regimens showed greater antimicrobial activity than that of without loading dosage group (p < 0.05). These data suggest that the colistin loading regimen would be one of the useful options for P. aeruginosa with antimicrobial resistance infection treatment.

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