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The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Epigallocatechin-Gallate Enhances the Activity of Tetracycline in Staphylococci by Inhibiting Its Efflux from Bacterial Cells

Open access
Sudano Roccaro, Andrea, Blanco, Anna Rita, Giuliano, Francesco, Rusciano, Dario, Enea, Vincenzo·2004·Antimicrobial Agents and Chemotherapy

Abstract

Epigallocatechin-gallate (EGCg), the major catechin present in green tea extracts, has been shown to have several antibacterial activities, limiting bacterial growth and invasion and acting in synergy with β-lactam antibiotics. In this article, we report that EGCg at doses half and below its calculated MIC of 100 μg/ml, is able to reverse tetracycline resistance in staphylococcal isolates expressing the specific efflux pump Tet(K) and appears to improve the MICs of tetracycline for susceptible staphylococcal isolates as well. The visible effect of EGCg is an increased accumulation of tetracycline inside bacterial cells. This effect is likely due to the inhibition of pump activity, and it is evident not only for Tet(K) pumps but also for efflux pumps of a different class [Tet(B)]. In summary, our data indicate that the observed dramatic enhancement by EGCg of tetracycline activity for resistant staphylococcal isolates is caused by impairment of tetracycline efflux pump activity and increased intracellular retention of the drug, suggesting a possible use of EGCg as an adjuvant in antibacterial therapy.

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Crossref · 10.1128/aac.48.6.1968-1973.2004

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Metadata

Authors
Sudano Roccaro, A., Blanco, A. R., Giuliano, F., Rusciano, D., & Enea, V.
Venue
Antimicrobial Agents and Chemotherapy
Published
2004-06
Volume
48
Issue
6
Pages
1968-1973
ISSN
  • 0066-4804 (ISSN-L)
  • 1098-6596
OpenAlex
W2033491946
Cited by
263
References
4
FWCI
3.31
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Epigallocatechin-Gallate Enhances the Activity of Tetracycline in Staphylococci by Inhibiting Its Efflux from Bacterial Cells. https://app.cochat.ai/papers/10.1128/aac.48.6.1968-1973.2004
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Sudano Roccaro, A., Blanco, A. R., Giuliano, F., Rusciano, D., & Enea, V. (2004). Epigallocatechin-Gallate Enhances the Activity of Tetracycline in Staphylococci by Inhibiting Its Efflux from Bacterial Cells. Antimicrobial Agents and Chemotherapy. https://doi.org/10.1128/aac.48.6.1968-1973.2004

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