Enhancement of antimicrobial activity by liposomal oleic acid-loaded antibiotics for the treatment of multidrug-resistant Pseudomonas aeruginosa
2018
AbstractIn this study, we examined the efficacy of liposomal oleic acid-based antibiotic formulations on 32 strains of multidrug-resistant Pseudomonas aeruginosa (MDRPa). The average size of liposomes were 93.12 ± 2.3 nm holding a negative zeta potential at −57.3 ± 0.89. Liposomal antibiotic formulations were tested against 32 MDRPa strains isolated from burn wounds and urine samples, which exhibited an MIC of ≤8 μg/mL, whereas MIC of free antibiotics ranged from 32 to >1024 μg/mL. The results clearly indicate that the liposomes composed of naturally occurring oleic acid, could be used therapeutically either alone or in combination with antibiotics to effectively treat P. aeruginosa infections.
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