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2. Modulation of the Antibiotic Activity by Extracts fromAmburana cearensisA. C. Smith andAnadenanthera macrocarpa(Benth.) Brenan

Author

Figueredo, Fernando G., primary, Ferreira, Emerson O., additional, Lucena, Bruno F. F., additional, Torres, Cícero M. G., additional, Lucetti, Daniel L., additional, Lucetti, Elaine C. P., additional, Silva, João Marcos F. L., additional, Santos, Francisco A. V., additional, Medeiros, Cássio R., additional, Oliveira, Gardênia M. M., additional, Colares, Aracélio V., additional, Costa, José G. M., additional, Coutinho, Henrique D. M., additional, Menezes, Irwin R. A., additional, Silva, Júlio C. F., additional, Kerntopf, Marta R., additional, Figueiredo, Patrícia R. L., additional, and Matias, Edinardo F. F., additional

Published
2013
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3. Modulation of the Antibiotic Activity by Extracts from Amburana cearensis A. C. Smith and Anadenanthera macrocarpa (Benth.) Brenan.

Author

Figueredo, Fernando G., Ferreira, Emerson O., Lucena, Bruno F. F., Torres, Cícero M. G., Lucetti, Daniel L., Lucetti, Elaine C. P., Silva, João Marcos F. L., Santos, Francisco A. V., Medeiros, Cássio R., Oliveira, Gardênia M. M., Colares, Aracélio V., Costa, José G. M., Coutinho, Henrique D. M., Menezes, Irwin R. A., Silva, Júlio C. F., Kerntopf, Marta R., Figueiredo, Patrícia R. L., and Matias, Edinardo F. F.

Abstract

The aim of this study was to verify the possible interactions between ethanol extracts of Amburana cearensis A. C. Smith and Anadenanthera macrocarpa (Benth.) Brenan, combined with six antimicrobial drugs against multiresistant strains of Staphylococcus aureus and Escherichia coli isolated from humans. The antibacterial activity of the extracts was determined using the minimum inhibitory concentration (MIC). The microdilution assay was performed to verify the interactions between the natural products and the antibiotics using a subinhibitory concentration. The activity of amikacin associated with the extract of Anadenanthera macrocarpa against EC 27 was enhanced, demonstrating an MIC reduction from 128 to 4 µg/mL. Among the β-lactams, no potentiation on its activity was observed, with exception to the antagonism of the natural products with ampicillin against S. aureus 358. [ABSTRACT FROM AUTHOR]

Published
2013
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