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Molecules 2016, 21(2), 244; doi:10.3390/molecules21020244

Catechin Hydrate Augments the Antibacterial Action of Selected Antibiotics against Staphylococcus aureus Clinical Strains

1
Department of Microbiology and Virology, School of Pharmacy and Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, ul. Jagiellońska 4, 41-200 Sosnowiec, Poland
2
Department of Conservative Dentistry with Endodontics, Medical University of Silesia, Katowice, Pl. Akademicki 17, 41-902 Bytom, Poland
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Peter J. Rutledge
Received: 17 December 2015 / Revised: 9 February 2016 / Accepted: 18 February 2016 / Published: 20 February 2016
(This article belongs to the Section Medicinal Chemistry)
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Abstract

Synergistic effects between commonly used antibiotics and natural substances may be an alternative to conventional antibacterial therapies. The objective of the presented study was to assess the in vitro antibacterial activity of catechin hydrate (CH) and evaluate the interactions of CH with selected antibiotics using Staphylococcus aureus clinical and reference strains. CH displayed diverse activity towards examined S. aureus strains, with minimal inhibitory concentrations (MICs) ranging from 256 to 2048 µg/mL. The interaction between CH and antibiotics was assessed by an E-test. The most significant synergistic effects were noticed for CH in combination with clindamycin and erythromycin. For cefoxitin and vancomycin a decrease of MIC values in the presence of CH was also observed, but it did not reach statistical significance. The obtained results demonstrate that CH shows antimicrobial activity against Staphylococcus aureus clinical strains. What is more, we proved a synergistic effect of CH with erythromycin and clindamycin. View Full-Text
Keywords: catechin hydrate; antibacterial activity; Staphylococcus aureus catechin hydrate; antibacterial activity; Staphylococcus aureus
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Miklasińska, M.; Kępa, M.; Wojtyczka, R.D.; Idzik, D.; Dziedzic, A.; Wąsik, T.J. Catechin Hydrate Augments the Antibacterial Action of Selected Antibiotics against Staphylococcus aureus Clinical Strains. Molecules 2016, 21, 244.

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