Antimicrobial Activity of Some Essential Oils against Methicillin-Susceptible and Methicillin-Resistant Staphylococcus pseudintermedius-Associated Pyoderma in Dogs

This study aimed to test in vitro the antimicrobial activity of 11 essential oils (EOs) against four methicillin-resistant Staphylococcus pseudintermedius (MRSP) and four methicillin-susceptible S. pseudintermedius (MSSP) clinical isolates. The obtained findings demonstrated a clear in vitro efficac...

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Bibliographic Details
Published in:Animals (Basel) 2020-10, Vol.10 (10), p.1782
Main Authors: Nocera, Francesca Paola, Mancini, Simone, Najar, Basma, Bertelloni, Fabrizio, Pistelli, Luisa, De Filippis, Anna, Fiorito, Filomena, De Martino, Luisa, Fratini, Filippo
Format: Article
Language:English
Subjects:
Antibiotic resistance
Antibiotics
Antimicrobial activity
Antimicrobial agents
Bacteria
Bactericidal activity
canine skin disorder
Cinnamomum zeylanicum
Citrus fruits
Clinical isolates
Coagulase
Drug resistance
Essential oils
Gram-positive bacteria
Identification
In vitro methods and tests
Laboratories
Marijuana
Mass spectrometry
MBC
Methicillin
MIC
Minimum inhibitory concentration
Multidrug resistance
Oils & fats
Pets
Pyoderma
Scientific imaging
Skin diseases
Staphylococcus pseudintermedius
Veterinary medicine
Zoonoses
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Summary:This study aimed to test in vitro the antimicrobial activity of 11 essential oils (EOs) against four methicillin-resistant Staphylococcus pseudintermedius (MRSP) and four methicillin-susceptible S. pseudintermedius (MSSP) clinical isolates. The obtained findings demonstrated a clear in vitro efficacy of some tested EOs against both MRSP and MSSP strains. Particularly, modal minimum inhibitory concentration (MIC) values ranging from 1:2048 v/v for Melissa officinalis against an MSSP strain to 1:256 v/v for Cymbopogoncitratus against all MRSP strains were observed. The best results, highlighting a modal MIC value of 1:1024 v/v for all tested isolates, was provided by Cinnamomum zeylanicum. Intriguingly, Cinnamomum zeylanicum showed, in many cases, a correspondence between minimum bactericidal concentration (MBC) and MIC values, indicating that the inhibiting dose is also often bactericidal. Moreover, a mild antibacterial and bactericidal activity against both MRSP and MSSP isolates was detected for the other tested EOs. Considering the zoonotic potential of S. pseudintermedius and the increased dissemination of multidrug-resistant strains, the employment of EOs could be useful for the treatment of canine pyoderma. Since antibiotic resistance has become the most urgent issue, from the perspective of the One Health initiative, alternative therapeutic approaches are desirable to limit the use of antibiotics or to improve the efficacy of conventional therapies.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani10101782