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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Antibacterial activity of (-)-cubebin isolated from Piper cubeba and its semisynthetic derivatives against microorganisms that cause endodontic infections

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Author(s):
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Karen C.S. Rezende ; Rodrigo Lucarini ; Guilherme V. Símaro ; Patricia M. Pauletti ; Ana H. Januário ; Viviane R. Esperandim ; Carlos H.G. Martins ; Mislaine A. Silva ; Wilson R. Cunha ; Jairo K. Bastos ; Márcio L.A.E. Silva
Total Authors: 11
Document type: Journal article
Source: REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY; v. 26, n. 3, p. 296-303, Jun. 2016.
Web of Science Citations: 5
Abstract

Abstract Recent publications have highlighted the numerous biological activities attributed to the lignan (-)-cubebin (1), Piper cubeba L. f., Piperaceae, and ongoing studies have focused on its structural optimization, in order to obtain derivatives with greater pharmacological potential. The aim of this study was the obtainment of (1), its semisynthetic derivatives and evaluation of antibacterial activity. The extract of the seeds of P. cubeba was chromatographed, subjected to recrystallization and was analyzed by HPLC and spectrometric techniques. It was used for the synthesis of: (-)-O-methylcubebin (2), (-)-O-benzylcubebin (3), (-)-O-acetylcubebin (4), (-)-O-(N, N-dimethylamino-ethyl)-cubebin (5), (-)-hinokinin (6) and (-)-6.6'-dinitrohinokinin (7). The evaluation of the antibacterial activity has been done by broth microdilution technique for determination of the minimum inhibitory concentration and the minimum bactericidal concentration against Porphyromonas gingivalis, Prevotella nigrescens, Actinomyces naeslundii, Bacteroides fragilis and Fusobacterium nucleatum. It was possible to make an analysis regarding the relationship between structure and antimicrobial activity of derivatives against microorganisms that cause endodontic infections. The most promising were minimum inhibitory concentration =50 µg/ml against P. gingivalis by (2) and (3), and minimum inhibitory concentration =100 µg/ml against B. fragilis by (6). Cytotoxicity assays demonstrated that (1) and its derivatives do not display toxicity. (AU)

FAPESP's process: 09/05049-2 - Development of polymeric nanaparticles and biodegradable systems containing lignans and evaluation its Chagas disease and schistosomiasis activities in vitro and in vivo
Grantee:Márcio Luís Andrade e Silva
Support type: Regular Research Grants
FAPESP's process: 08/07089-9 - Determination of antibacterial activity of (-)-cubebin and its semi-synthetic derivatives against some microorganisms causers endodontic infections
Grantee:Karen Cristina Souza Rezende
Support type: Scholarships in Brazil - Master