Photomodulation potential of antimicrobial photodynamic therapy with nano-chitosan doped with curcumin versus Porphyromonas gingivalis
محل انتشار: بیستمین کنگره بین المللی میکروب شناسی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 283
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شناسه ملی سند علمی:
MEDISM20_041
تاریخ نمایه سازی: 26 بهمن 1398
چکیده مقاله:
Introduction and Objectives: Porphyromonas gingivalis is an etiological agent frequently found in both chronic and aggressive periodontitis as well as peri-implantitis. This study assessed the effect of antimicrobial photodynamic therapy (aPDT), as an alternative treatment modality, by nano-chitosan doped with curcumin (CNPs-Cur), as a photosensitizer, on the virulence features of cell-surviving aPDT against P. gingivalis. Materials and Methods: P. gingivalis photosensitized with CNPs-Cur was irradiated with diode laser at a wavelength of 435 nm for 3 min, and then bacterial viability measurements were done. The biofilm formation ability, metabolic activity, and antimicrobial susceptibility profiles were assessed for cell-surviving aPDT. Results: CNPs-Cur-aPDT resulted in a significant reduction of cell viability (89.2%), biofilm formation capacity (57.4%), and metabolic activity (44.6%) of P. gingivalis when compared to the control group (P < 0.05). Conclusion: The virulence of P. gingivalis strain reduced in cells surviving aPDT with CNPs-Cur, indicating the potential implications of aPDT for the treatment of P. gingivalis infections in periodontitis and peri-implantitis in vivo.
کلیدواژه ها:
نویسندگان
Maryam Pourhajibagher
Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
Abbas Bahador
Oral Microbiology Laboratory, Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran