Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows
- Autores
- Buldain, Daniel Cornelio; Gortari Castillo, Lihuel; Buchamer, Andrea Verónica; Aliverti, Florencia; Bandoni, Arnaldo; Marchetti, María Laura; Mestorino, Olga Nora
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Staphylococcus aureus is the major subclinical mastitis-causing pathogen in dairy cows. In some European and Latin American countries, rifaximin (RIF) is a commonly used therapy at drying off. Phytotherapeutics are alternatives for the treatment of infectious diseases. Melaleuca armillaris essential oil (EO) has been reported as a good antimicrobial against S. aureus. The aim of this work was to investigate, in vitro, the combined effect of EO and RIF to identify a synergic interaction against S. aureus in order to obtain enough information for subsequent pharmacokinetic/pharmacodynamic studies. The minimum inhibitory concentrations (MIC) for RIF, EO, and combinations of these against S. aureus strains were determined at pH 7.4, 6.5, and 5.0, representing intracellular conditions where S. aureus is usually located. The fractional inhibitory concentration index (FIC) and the index of antibacterial activity (E) were evaluated. The MIC of EO at pH 7.4 was 25–12.5 µL/mL and decreased with the acidity of the medium. RIF presented a high antimicrobial activity (0.032µg/mL) against S. aureus regardless of the pH conditions. Combining RIF with EO, we found a synergic effect. A mix of 0.004µg/mL of RIF and 12.5 µL/mL of EO led to a virtual eradication effect against wild-type strains at pH 7.4. Media acidification improves the EO/RIF activity, so EO would be a good adjuvant for RIF to treat staphylococcal infections and decrease antimicrobial resistance.
Facultad de Ciencias Veterinarias - Materia
-
Ciencias Veterinarias
Staphylococcus aureus
Dairy cows
Melaleuca armillaris
Essential oil
Rifaximin
Checkerboard
Synergism - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/107793
Ver los metadatos del registro completo
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Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy CowsBuldain, Daniel CornelioGortari Castillo, LihuelBuchamer, Andrea VerónicaAliverti, FlorenciaBandoni, ArnaldoMarchetti, María LauraMestorino, Olga NoraCiencias VeterinariasStaphylococcus aureusDairy cowsMelaleuca armillarisEssential oilRifaximinCheckerboardSynergismStaphylococcus aureus is the major subclinical mastitis-causing pathogen in dairy cows. In some European and Latin American countries, rifaximin (RIF) is a commonly used therapy at drying off. Phytotherapeutics are alternatives for the treatment of infectious diseases. Melaleuca armillaris essential oil (EO) has been reported as a good antimicrobial against S. aureus. The aim of this work was to investigate, in vitro, the combined effect of EO and RIF to identify a synergic interaction against S. aureus in order to obtain enough information for subsequent pharmacokinetic/pharmacodynamic studies. The minimum inhibitory concentrations (MIC) for RIF, EO, and combinations of these against S. aureus strains were determined at pH 7.4, 6.5, and 5.0, representing intracellular conditions where S. aureus is usually located. The fractional inhibitory concentration index (FIC) and the index of antibacterial activity (E) were evaluated. The MIC of EO at pH 7.4 was 25–12.5 µL/mL and decreased with the acidity of the medium. RIF presented a high antimicrobial activity (0.032µg/mL) against S. aureus regardless of the pH conditions. Combining RIF with EO, we found a synergic effect. A mix of 0.004µg/mL of RIF and 12.5 µL/mL of EO led to a virtual eradication effect against wild-type strains at pH 7.4. Media acidification improves the EO/RIF activity, so EO would be a good adjuvant for RIF to treat staphylococcal infections and decrease antimicrobial resistance.Facultad de Ciencias Veterinarias2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/107793enginfo:eu-repo/semantics/altIdentifier/url/http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7373747&blobtype=pdfinfo:eu-repo/semantics/altIdentifier/issn/2297-1769info:eu-repo/semantics/altIdentifier/pmid/32760742info:eu-repo/semantics/altIdentifier/doi/10.3389/fvets.2020.00344info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:56:06Zoai:sedici.unlp.edu.ar:10915/107793Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:56:06.714SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
title |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
spellingShingle |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows Buldain, Daniel Cornelio Ciencias Veterinarias Staphylococcus aureus Dairy cows Melaleuca armillaris Essential oil Rifaximin Checkerboard Synergism |
title_short |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
title_full |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
title_fullStr |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
title_full_unstemmed |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
title_sort |
Melaleuca armillaris Essential Oil in Combination With Rifaximin Against Staphylococcus aureus Isolated of Dairy Cows |
dc.creator.none.fl_str_mv |
Buldain, Daniel Cornelio Gortari Castillo, Lihuel Buchamer, Andrea Verónica Aliverti, Florencia Bandoni, Arnaldo Marchetti, María Laura Mestorino, Olga Nora |
author |
Buldain, Daniel Cornelio |
author_facet |
Buldain, Daniel Cornelio Gortari Castillo, Lihuel Buchamer, Andrea Verónica Aliverti, Florencia Bandoni, Arnaldo Marchetti, María Laura Mestorino, Olga Nora |
author_role |
author |
author2 |
Gortari Castillo, Lihuel Buchamer, Andrea Verónica Aliverti, Florencia Bandoni, Arnaldo Marchetti, María Laura Mestorino, Olga Nora |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Veterinarias Staphylococcus aureus Dairy cows Melaleuca armillaris Essential oil Rifaximin Checkerboard Synergism |
topic |
Ciencias Veterinarias Staphylococcus aureus Dairy cows Melaleuca armillaris Essential oil Rifaximin Checkerboard Synergism |
dc.description.none.fl_txt_mv |
Staphylococcus aureus is the major subclinical mastitis-causing pathogen in dairy cows. In some European and Latin American countries, rifaximin (RIF) is a commonly used therapy at drying off. Phytotherapeutics are alternatives for the treatment of infectious diseases. Melaleuca armillaris essential oil (EO) has been reported as a good antimicrobial against S. aureus. The aim of this work was to investigate, in vitro, the combined effect of EO and RIF to identify a synergic interaction against S. aureus in order to obtain enough information for subsequent pharmacokinetic/pharmacodynamic studies. The minimum inhibitory concentrations (MIC) for RIF, EO, and combinations of these against S. aureus strains were determined at pH 7.4, 6.5, and 5.0, representing intracellular conditions where S. aureus is usually located. The fractional inhibitory concentration index (FIC) and the index of antibacterial activity (E) were evaluated. The MIC of EO at pH 7.4 was 25–12.5 µL/mL and decreased with the acidity of the medium. RIF presented a high antimicrobial activity (0.032µg/mL) against S. aureus regardless of the pH conditions. Combining RIF with EO, we found a synergic effect. A mix of 0.004µg/mL of RIF and 12.5 µL/mL of EO led to a virtual eradication effect against wild-type strains at pH 7.4. Media acidification improves the EO/RIF activity, so EO would be a good adjuvant for RIF to treat staphylococcal infections and decrease antimicrobial resistance. Facultad de Ciencias Veterinarias |
description |
Staphylococcus aureus is the major subclinical mastitis-causing pathogen in dairy cows. In some European and Latin American countries, rifaximin (RIF) is a commonly used therapy at drying off. Phytotherapeutics are alternatives for the treatment of infectious diseases. Melaleuca armillaris essential oil (EO) has been reported as a good antimicrobial against S. aureus. The aim of this work was to investigate, in vitro, the combined effect of EO and RIF to identify a synergic interaction against S. aureus in order to obtain enough information for subsequent pharmacokinetic/pharmacodynamic studies. The minimum inhibitory concentrations (MIC) for RIF, EO, and combinations of these against S. aureus strains were determined at pH 7.4, 6.5, and 5.0, representing intracellular conditions where S. aureus is usually located. The fractional inhibitory concentration index (FIC) and the index of antibacterial activity (E) were evaluated. The MIC of EO at pH 7.4 was 25–12.5 µL/mL and decreased with the acidity of the medium. RIF presented a high antimicrobial activity (0.032µg/mL) against S. aureus regardless of the pH conditions. Combining RIF with EO, we found a synergic effect. A mix of 0.004µg/mL of RIF and 12.5 µL/mL of EO led to a virtual eradication effect against wild-type strains at pH 7.4. Media acidification improves the EO/RIF activity, so EO would be a good adjuvant for RIF to treat staphylococcal infections and decrease antimicrobial resistance. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
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http://sedici.unlp.edu.ar/handle/10915/107793 |
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eng |
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eng |
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