info:eu-repo/semantics/article
Bacterial viability after antimicrobial photodynamic therapy with curcumin on multiresistant Staphylococcus aureus
Fecha
2019-06Registro en:
Freitas, Mirian A. A.; Pereira, André H.C.; Pinto, Juliana G.; Casas, Adriana Gabriela; Ferreira Strixino, Juliana; Bacterial viability after antimicrobial photodynamic therapy with curcumin on multiresistant Staphylococcus aureus; Future Medicine; Future Microbiology; 14; 9; 6-2019; 739-748
1746-0913
CONICET Digital
CONICET
Autor
Freitas, Mirian A. A.
Pereira, André H.C.
Pinto, Juliana G.
Casas, Adriana Gabriela
Ferreira Strixino, Juliana
Resumen
Staphylococcus aureus are multiresistant pathogens that causes superficial and systemic infections. Antimicrobial photodynamic therapy (APDT) is an alternative in the treatment of diseases caused by these bacteria. Aim: In this study the APDT response on growth, viability, formation of reactive oxygen species and adhesion of methicillin-sensitive strains of Staphylococcus aureus, strains of methicillin-resistant S. aureus and American-type culture collection (ATCC) of S. aureus were evaluated in vitro, after incubation with curcumin for 20 min, and irradiated with LED. Materials & methods: Bacterial growth was assessed by the number of colony-forming units, viability and adhesion were evaluated by confocal microscopy and ROS quantification was performed by fluorimetry. Results: Was observed increase in the production of ROS in APDT groups, besides a decrease in the 4 log growth and loss of the bacterial adhesion. Conclusion: APDT with Curcumin may be an interesting therapeutic alternative, due to its in vitro response, in the control multiresistant clinical S. aureus strains.