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Synergistic effect of Myrtus communis L. essential oils and conventional antibiotics against multi-drug resistant Acinetobacter baumannii wound isolates

Acinetobacter baumannii is a rapidly emerging, highly resistant clinical pathogen with increasing prevalence. In recent years, the limited number of antimicrobial agents available for treatment of infections with multi-drug resistant (MDR) strains reinforced tendency for discovery of novel antimicro... Full description

Journal Title: Phytomedicine (Stuttgart) 2014-10-15, Vol.21 (12), p.1666-1674
Main Author: Aleksic, Verica
Other Authors: Mimica-Dukic, Neda , Simin, Natasa , Nedeljkovic, Natasa Stankovic , Knezevic, Petar
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: Germany: Elsevier GmbH
ID: ISSN: 0944-7113
Link: https://www.ncbi.nlm.nih.gov/pubmed/25442275
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title: Synergistic effect of Myrtus communis L. essential oils and conventional antibiotics against multi-drug resistant Acinetobacter baumannii wound isolates
format: Article
creator:
  • Aleksic, Verica
  • Mimica-Dukic, Neda
  • Simin, Natasa
  • Nedeljkovic, Natasa Stankovic
  • Knezevic, Petar
subjects:
  • Acinetobacter baumannii
  • Acinetobacter baumannii - drug effects
  • Anti-Bacterial Agents - pharmacology
  • Antimicrobial agents
  • Ciprofloxacin - pharmacology
  • Drug resistance in microorganisms
  • Drug Resistance, Multiple, Bacterial
  • Drug Synergism
  • Essences and essential oils
  • Essential oils/Myrtus communis
  • Gas Chromatography-Mass Spectrometry
  • Health aspects
  • Herb-drug interactions
  • Medical research
  • Medicine, Experimental
  • Microbial Sensitivity Tests
  • Multi-drug resistant
  • Myrtle
  • Myrtus - chemistry
  • Myrtus communis
  • Oils, Volatile - chemistry
  • Oils, Volatile - pharmacology
  • Plant Leaves - chemistry
  • Plant Oils - chemistry
  • Plant Oils - pharmacology
  • Polymyxin B - pharmacology
  • Synergism
ispartof: Phytomedicine (Stuttgart), 2014-10-15, Vol.21 (12), p.1666-1674
description: Acinetobacter baumannii is a rapidly emerging, highly resistant clinical pathogen with increasing prevalence. In recent years, the limited number of antimicrobial agents available for treatment of infections with multi-drug resistant (MDR) strains reinforced tendency for discovery of novel antimicrobial agents or treatment strategies. The aim of the study was to determine antimicrobial effectiveness of three Myrtus communis L. essential oils, both alone and in combination with conventional antibiotics, against MDR A. baumannii wound isolates. The results obtained highlighted the occurrence of good antibacterial effect of myrtle oils when administered alone. Using checkerboard method, the combinations of subinhibitory concentrations of myrtle essential oils and conventional antibiotics, i.e. polymixin B and ciprofloxacine were examined. The results proved synergism among M. communis L. essential oils and both antibiotics against MDR A. baumannii wound isolates, with a FIC index under or equal 0.50. Combination of subinhibitory concentrations of essential oils and ciprofloxacin most frequently reduced bacterial growth in synergistic manner. The similar has been shown for combination with polymyxin B; furthermore, the myrtle essential oil resulted in re-sensitization of the MDR wound isolates, i.e. MICs used in combination were below the cut off for the sensitivity to the antibiotic. Time-kill curve method confirmed efficacy of myrtle essential oil and polymyxin B combination, with complete reduction of bacterial count after 6h. The detected synergy offers an opportunity for future development of treatment strategies for potentially lethal wound infections caused by MDR A. baumannii.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0944-7113
fulltext: fulltext
issn:
  • 0944-7113
  • 1618-095X
url: Link


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titleSynergistic effect of Myrtus communis L. essential oils and conventional antibiotics against multi-drug resistant Acinetobacter baumannii wound isolates
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creatorAleksic, Verica ; Mimica-Dukic, Neda ; Simin, Natasa ; Nedeljkovic, Natasa Stankovic ; Knezevic, Petar
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descriptionAcinetobacter baumannii is a rapidly emerging, highly resistant clinical pathogen with increasing prevalence. In recent years, the limited number of antimicrobial agents available for treatment of infections with multi-drug resistant (MDR) strains reinforced tendency for discovery of novel antimicrobial agents or treatment strategies. The aim of the study was to determine antimicrobial effectiveness of three Myrtus communis L. essential oils, both alone and in combination with conventional antibiotics, against MDR A. baumannii wound isolates. The results obtained highlighted the occurrence of good antibacterial effect of myrtle oils when administered alone. Using checkerboard method, the combinations of subinhibitory concentrations of myrtle essential oils and conventional antibiotics, i.e. polymixin B and ciprofloxacine were examined. The results proved synergism among M. communis L. essential oils and both antibiotics against MDR A. baumannii wound isolates, with a FIC index under or equal 0.50. Combination of subinhibitory concentrations of essential oils and ciprofloxacin most frequently reduced bacterial growth in synergistic manner. The similar has been shown for combination with polymyxin B; furthermore, the myrtle essential oil resulted in re-sensitization of the MDR wound isolates, i.e. MICs used in combination were below the cut off for the sensitivity to the antibiotic. Time-kill curve method confirmed efficacy of myrtle essential oil and polymyxin B combination, with complete reduction of bacterial count after 6h. The detected synergy offers an opportunity for future development of treatment strategies for potentially lethal wound infections caused by MDR A. baumannii.
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subjectAcinetobacter baumannii ; Acinetobacter baumannii - drug effects ; Anti-Bacterial Agents - pharmacology ; Antimicrobial agents ; Ciprofloxacin - pharmacology ; Drug resistance in microorganisms ; Drug Resistance, Multiple, Bacterial ; Drug Synergism ; Essences and essential oils ; Essential oils/Myrtus communis ; Gas Chromatography-Mass Spectrometry ; Health aspects ; Herb-drug interactions ; Medical research ; Medicine, Experimental ; Microbial Sensitivity Tests ; Multi-drug resistant ; Myrtle ; Myrtus - chemistry ; Myrtus communis ; Oils, Volatile - chemistry ; Oils, Volatile - pharmacology ; Plant Leaves - chemistry ; Plant Oils - chemistry ; Plant Oils - pharmacology ; Polymyxin B - pharmacology ; Synergism
ispartofPhytomedicine (Stuttgart), 2014-10-15, Vol.21 (12), p.1666-1674
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descriptionAcinetobacter baumannii is a rapidly emerging, highly resistant clinical pathogen with increasing prevalence. In recent years, the limited number of antimicrobial agents available for treatment of infections with multi-drug resistant (MDR) strains reinforced tendency for discovery of novel antimicrobial agents or treatment strategies. The aim of the study was to determine antimicrobial effectiveness of three Myrtus communis L. essential oils, both alone and in combination with conventional antibiotics, against MDR A. baumannii wound isolates. The results obtained highlighted the occurrence of good antibacterial effect of myrtle oils when administered alone. Using checkerboard method, the combinations of subinhibitory concentrations of myrtle essential oils and conventional antibiotics, i.e. polymixin B and ciprofloxacine were examined. The results proved synergism among M. communis L. essential oils and both antibiotics against MDR A. baumannii wound isolates, with a FIC index under or equal 0.50. Combination of subinhibitory concentrations of essential oils and ciprofloxacin most frequently reduced bacterial growth in synergistic manner. The similar has been shown for combination with polymyxin B; furthermore, the myrtle essential oil resulted in re-sensitization of the MDR wound isolates, i.e. MICs used in combination were below the cut off for the sensitivity to the antibiotic. Time-kill curve method confirmed efficacy of myrtle essential oil and polymyxin B combination, with complete reduction of bacterial count after 6h. The detected synergy offers an opportunity for future development of treatment strategies for potentially lethal wound infections caused by MDR A. baumannii.
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1Acinetobacter baumannii - drug effects
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20Oils, Volatile - chemistry
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22Plant Leaves - chemistry
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25Polymyxin B - pharmacology
26Synergism
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titleSynergistic effect of Myrtus communis L. essential oils and conventional antibiotics against multi-drug resistant Acinetobacter baumannii wound isolates
authorAleksic, Verica ; Mimica-Dukic, Neda ; Simin, Natasa ; Nedeljkovic, Natasa Stankovic ; Knezevic, Petar
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abstractAcinetobacter baumannii is a rapidly emerging, highly resistant clinical pathogen with increasing prevalence. In recent years, the limited number of antimicrobial agents available for treatment of infections with multi-drug resistant (MDR) strains reinforced tendency for discovery of novel antimicrobial agents or treatment strategies. The aim of the study was to determine antimicrobial effectiveness of three Myrtus communis L. essential oils, both alone and in combination with conventional antibiotics, against MDR A. baumannii wound isolates. The results obtained highlighted the occurrence of good antibacterial effect of myrtle oils when administered alone. Using checkerboard method, the combinations of subinhibitory concentrations of myrtle essential oils and conventional antibiotics, i.e. polymixin B and ciprofloxacine were examined. The results proved synergism among M. communis L. essential oils and both antibiotics against MDR A. baumannii wound isolates, with a FIC index under or equal 0.50. Combination of subinhibitory concentrations of essential oils and ciprofloxacin most frequently reduced bacterial growth in synergistic manner. The similar has been shown for combination with polymyxin B; furthermore, the myrtle essential oil resulted in re-sensitization of the MDR wound isolates, i.e. MICs used in combination were below the cut off for the sensitivity to the antibiotic. Time-kill curve method confirmed efficacy of myrtle essential oil and polymyxin B combination, with complete reduction of bacterial count after 6h. The detected synergy offers an opportunity for future development of treatment strategies for potentially lethal wound infections caused by MDR A. baumannii.
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