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Naringenin as an antibacterial reagent controlling of biofilm formation and fatty acid metabolism in MRSA

Song, H.-S.; Bhatia, S. K.; Gurav, R.; Choi, T.-R.; Kim, H. J.; Park, Y.-L.; Han, Y.-H.; Park, J. Y.; Lee, S. m.; Park, S. L.; Lee, H. S.; Kim, W.; Kim, Y.-G.; Yang, Y.-H.

2020-03-09 microbiology
10.1101/2020.03.08.983049 bioRxiv
Show abstract

MRSA is Methicillin-resistant Staphylococcus aureus and they are widespread and making trouble in treatment in communities and surgical areas. MRSA have been adapted to antibiotics so that they can block the access of antibiotics physically or chemically deactivate it or modify the precursor of the target. Flavonoids are secondary metabolites which are naturally produced by plant or fungus and they are acting generally as pigment, quorum sensing molecules, antibiotics to other competitive microorganisms. Their natural origins and multiple activities have drawn much attention to be developed as the potential drugs since flavonoids could be a good candidate to overcome antibiotic resistant bacteria. Among various flavonoids, we found out naringenin has antibacterial activity on MRSA and {Delta}agr mutants which are more resistance than MRSA to beta-lactam antibiotics by decreasing biofilm formation dramatically and decreasing the secretion of fatty acid. It also showed high synergetic activity with oxacillin to both antibacterial activity and biofilm inhibition. Considering the number of flavonoids, our experiments expand the possibility of the use of flavonoids to MRSA.

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