Effect of Momordica charantia L. in the resistance to aminoglycosides in methicilin-resistant Staphylococcus aureus |
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| Authors: | Henrique D.M. Coutinho, Jos G.M. Costa, Vivyanne S. Falc o-Silva, Jos P. Siqueira-Jú nior,Edeltrudes O. Lima |
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| Affiliation: | a Laboratory of Research in Natural Products, University of the Region of Cariri, Crato (CE), Brazil;b Leão Sampaio College, Juazeiro do Norte (CE), Brazil;c Laboratory of Genetics of Microorganisms, Federal University of Paraíba, João Pessoa (PB), Brazil;d Laboratory of Mycology, Federal University of Paraíba, João Pessoa (PB), Brazil |
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| Abstract: | In this study the ethanol extract (EEMC) of Momordica charantia L. (Cucurbitaceae) was tested for its modifying antibiotic activity against a MRSA strain. The growth of an MRSA (SA358) in the absence and presence of aminoglycosides was evaluated. A potentiating effect between this extract and all aminoglycosides was demonstrated. Similarly, the same effect was shown by chlorpromazine on kanamycin, gentamicin and neomycin, indicating the involvement of an efflux system in the resistance to these aminoglycosides. Extracts from M. charantia could be used as a source of plant-derived natural products with resistance-modifying activity. This is the first report about the modifying antibiotic activity of M. charantia, constituting a new weapon against multi-resistant bacteria such as MRSA. |
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| Keywords: | Aminoglycosides Chlorpromazine Ethanol extract Modifying antibiotic activity Momordica charantia MRSA |
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