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  • Title: Antimicrobial photodynamic therapy: modern technology in the treatment of wound infections in patients with burns.
    Author: Mahmoudi H, Pourhajibagher M, Chiniforush N, Alikhani MY, Bahador A.
    Journal: J Wound Care; 2023 Apr 01; 32(Sup4a):xxxi-xxxviii. PubMed ID: 37029985.
    Abstract:
    BACKGROUND: Staphylococcus aureus is one of the most frequently isolated microorganisms from burn wounds. Antimicrobial photodynamic therapy (aPDT) is a new strategy that may improve antimicrobial treatment. METHOD: This study evaluated three meticillin-resistant Staphylococcus aureus (MRSA) and three meticillin-sensitive Staphylococcus aureus (MSSA) clinical isolates, which produced a biofilm with 0.1mg/ml Toluidine Blue O (TBO) (Sigma-Aldrich, Germany) with an energy density of 45J/cm2 and 90J/cm2, for MRSA and MSSA, respectively. The antibiofilm potential of aPDT with TBO was analysed using crystal violet assays and scanning electron microscopy. RESULTS: TBO-aPDT significantly degraded the biofilm formed by MRSA and MSSA clinical isolates (p<0.05). CONCLUSION: Our results indicated that aPDT is an effective approach to combat bacterial biofilms associated with burn wound infection. aPDT could provide a supplemental to the treatment of wound and tissue infection, and patients with burns may benefit from combined treatments.
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