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  • Title: Diacetylcurcumin: a novel strategy against Enterococcus faecalis biofilm in root canal disinfection.
    Author: Souza V, Polaquini CR, de Moraes GR, Oliveira Braga AR, da Silva PV, da Silva DR, Ribeiro Lima FR, Regasini LO, Cássia Orlandi Sardi J.
    Journal: Future Microbiol; 2024; 19(8):647-654. PubMed ID: 38661711.
    Abstract:
    Aim: We evaluated Diacetylcurcumin (DAC), a derivative of curcumin, for its antibacterial and antibiofilm properties against Enterococcus faecalis. Methods: Minimum inhibitory concentration (MIC) and minimum bactericidal concentration were determined, along with antibiofilm potential and toxicity in Galleria mellonella. Additionally, in silico computational analysis was performed to understand its mechanisms of action. Results & conclusion: DAC demonstrated significant antibacterial effects, with MIC and MBC values of 15.6 and 31.25 μg/ml, respectively, and reduced biofilm formation. A synergistic effect, reducing biofilm by 77%, was observed when combined with calcium hydroxide. G. mellonella toxicity tests confirmed DAC's safety at tested concentrations, suggesting its potential for use in root canal disinfection products. Diacetylcurcumin (DAC) comes from turmeric, a natural spice often used in food. DAC may have the ability to fight germs, including the bacteria Enterococcus faecalis. We tested DAC's ability to kill E. faecalis and stopping the formation of films of the bacteria. We found that a small amount of DAC did kill E. faecalis. When used with calcium hydroxide, DAC works even better to reduce the formation of bacterial films by 77%. DAC is safe to be used on teeth, so may be a useful ingredient for preserving mouth health.
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