Antimicrobial activity and synergism of Sami-Hyanglyun-Hwan with ciprofloxacin against methicillin-resistant Staphylococcus aureus
- PMID: 26276284
- DOI: 10.1016/j.apjtm.2015.06.010
Antimicrobial activity and synergism of Sami-Hyanglyun-Hwan with ciprofloxacin against methicillin-resistant Staphylococcus aureus
Abstract
Objective: To investigate the antibacterial activity of SHH extracted with either water or ethanol against methicillin-resistant Staphylococcus aureus (MRSA) and combinatory antimicrobial effect with ciprofloxacin (CIP) by time kill assay and checkerboard dilution test.
Methods: The antibacterial activity determined by broth dilution method indicated that the antibacterial activity of Sami-Hyanglyun-Hwan (SHH) water extract (SHHW) and SHH ethanol extract (SHHE) ranged from 250 to 2000 μg/mL and 125 to 1000 μg/mL against MRSA, respectively.
Results: In the checkerboard method, the combinations of SHHE with CIP had a partial synergistic or synergistic effect against MRSA. The time-kill curves showed that a combined SHHE and CIP treatment reduced the bacterial counts dramatically after 24 h.
Conclusions: The present study demonstrates the therapeutic ability of SHHE against MRSA infections.
Keywords: Ciprofloxacin; Methicillin-resistant Staphylococcus aureus; Sami-Hyanglyun-Hwan; Synergy.
Copyright © 2015 Hainan Medical College. Production and hosting by Elsevier B.V. All rights reserved.
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