Article Publish Status: FREE
Abstract Title:

Brazilian Red Propolis Is as Effective as Amoxicillin in Controlling Red-Complex of Multispecies Subgingival Mature Biofilm In Vitro.

Abstract Source:

Antibiotics (Basel). 2020 Jul 22 ;9(8). Epub 2020 Jul 22. PMID: 32707856

Abstract Author(s):

Kadmo Azevedo de Figueiredo, Helio Doyle Pereira da Silva, Stela Lima Farias Miranda, Francisco Jerfeson Dos Santos Gonçalves, Arlene Pereira de Sousa, Luciene Cristina de Figueiredo, Magda Feres, Bruno Bueno-Silva

Article Affiliation:

Kadmo Azevedo de Figueiredo


This study investigated the effects of Brazilian Red Propolis (BRP) extract on seven-day-old multispecies subgingival biofilms. Mixed biofilm cultures containing 31 species associated with periodontal health or disease were grown for six days on a Calgary device. Then, mature biofilms were treated for 24 h with BRP extract at different concentrations (200-1600µg/mL), amoxicillin (AMOXI) at 54 µg/mL (positive control) or vehicle (negative control). Biofilm metabolic activity was determined by colorimetry, and bacterial counts/proportions were determined by DNA-DNA hybridization. Data were analyzed by Kruskal-Wallis and Dunn's tests. Treatment with BRP at 1600, 800 and 400 μg/mL reduced biofilm metabolic activity by 56%, 56% and 57%, respectively, as compared to 65% reduction obtained with AMOXI. Mean total cell counts were significantly reduced in all test groups (~50-55%). Lower proportions of red, green and yellow complex species were observedupon treatment with BRP (400 µg/mL) and AMOXI, but only AMOXI reduced the proportions ofspecies. In conclusion, BRP extract was as effective as AMOXI in killing seven-day-old multispecies biofilm pathogens and did not affect the levels of the host-compatiblespecies. These data suggest that BRP may be an alternative to AMOXI as an adjunct in periodontal therapy. In vivo studies are needed to validate these results.

Study Type : In Vitro Study

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