Effect of different fluence rates applied in curcumin-photodynamic therapy on Candida albicans biofilms].

In this study, the inactivation effect of different fluence rates on Candida albicans biofilms during curcumin-photodynamic therapy was investigated in vitro. The standard Candida albicans and clinical isolated Candida albicans were selected as model fungus and different fluence rates (12, 22, 42, 62, 82, 102 mW/cm2) during curcumin-photodynamic therapy were applied to inactivate Candida albicans biofilm. To evaluate the inactivation effect, XTT assay and Live/Dead kit were employed to quantify and visualize the activities of Candida albicans biofilms. The data were analyzed with SPSS 19.0 software package. When 40 μmol/L of curcumin was applied followed by 4 min illumination, both standard Candida albicans and clinical isolated Candida albicans biofilms were greatly inactivated along with the increase of fluence rates. When fluence rate increased to 102 mW/cm2, there was no significant difference between the experimental group and the previous experimental group(P>0.05). Fluence rate plays an important role in inactivation of Candida albicans biofilms during curcumin-photodynamic therapy, with optimized value of fluence rate of 82 mW/cm2 in this study.

Citation

Jing Ma, Ji-Yang Li, Qiao-Zhen Yang, Yu Bai, Cheng Zhang, Hong-Ying Sun. Effect of different fluence rates applied in curcumin-photodynamic therapy on Candida albicans biofilms]. Shanghai kou qiang yi xue = Shanghai journal of stomatology. 2020 Oct;29(5):456-461

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PMID: 33543208

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