Antimicrobial and antibiofilm action of Casbane Diterpene from Croton nepetaefolius against oral bacteria.

Autor: Cardoso Sá N; LIBS, Integrate Biomolecules Laboratory, Federal University of Ceará, Sobral, CE, Brazil., Cavalcante TT, Araújo AX, dos Santos HS, Albuquerque MR, Bandeira PN, da Cunha RM, Cavada BS, Teixeira EH
Jazyk: angličtina
Zdroj: Archives of oral biology [Arch Oral Biol] 2012 May; Vol. 57 (5), pp. 550-5. Date of Electronic Publication: 2011 Nov 25.
DOI: 10.1016/j.archoralbio.2011.10.016
Abstrakt: Objective: The antibacterial activity of Casbane Diterpene (CD) was evaluated in vitro against Streptococcus oralis, S. mutans, S. salivarius, S. sobrinus, S. mitis and S. sanguinis. The viability of planktonic cells was analysed by susceptibility tests (MIC and MBC) and antibiofilm action was assayed.
Methods: The minimal inhibitory and bactericidal concentrations (MIC and MBC) of oral Streptococcus were evaluated through microdilution tests. To assay antibiofilm activity, biofilms were generated on 96-wells polystyrene plates under the presence of CD and quantified by a crystal violet technique and colonies forming units counting.
Results: The CD isolated from Croton nepetaefolius showed antimicrobial effect on planktonic forms and biofilms of oral pathogens, with MIC values of 62.5 μg/mL against Streptococcus oralis and values between 125 and 500 μg/mL against S. mutans, S. salivarius, S. sobrinus, S. mitis and S. sanguinis. CD showed an inhibitory effect on S. mutans biofilm formation at 250 μg/mL, and a decrease on viable cell of 94.28% compared to the normal biofilm growth.
Conclusions: The compound CD can be considered as a promising molecule for the treatment against oral pathogens responsible for dental biofilm.
(Copyright © 2011 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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