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Τρίτη 13 Μαρτίου 2018

Salicylate induces reactive oxygen species and reduces UVC susceptibility in Staphylococcus aureus

Abstract
Present study demonstrates that growth of Staphylococcus aureus in the presence of salicylate reduces ultraviolet C (UVC)-induced cell death and increases the generation of reactive oxygen species (ROS). In addition, compounds that scavenge ROS (N-acetylcysteine, glutathione, catalase and superoxide dismutase) reverse the increased UVC survival induced by growth in the presence of salicylate, while ROS donors (tert-butylhydroperoxide, H2O2, and NaClO) enhance survival of salicylate challenged cultures. Collectively these findings suggest that ROS production induced by growth in the presence of salicylate protects S. aureus from UVC-induced cell death.

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