Benefits of Bifidobacterium animalis subsp lactis Probiotic in Experimental Periodontitis

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Oliveira, Luiz F. F. ; Salvador, Sergio L. ; Silva, Pedro H. F. ; Furlaneto, Flavia A. C. ; Figueiredo, Luciene ; Casarin, Renato ; Ervolino, Edilson ; Palioto, Daniela B. ; Souza, Sergio L. S. ; Taba, Jr., Mario ; Novaes, Jr., Arthur B. ; Messora, Michel R.

• Tipo de documento: Artigo Científico
• Fonte: Journal of Periodontology; v. 88, n. 2, p. 197-208, FEB 2017.
• Citações Web of Science: 9

Resumo

Background: This study evaluates effects of topical administration of probiotic bacteria of the genus Bifidobacterium on experimental periodontitis (EP) in rats. Methods: Thirty-two rats were divided into groups C (control; without EP), EP (EP only), C-HN019 (control+probiotic), and EP-HN019 (EP+probiotic). On day 0 of the experiment, animals of groups EP and EP-HN019 received cotton ligatures around mandibular first molars (MFMs). In groups C-HN019 and EP-HN019, 1 mL of suspensions containing Bifidobacterium animalis subsp. lactis (B. lactis) HN019 was topically administered in the subgingival region of MFMs on days 0, 3, and 7. In groups C and EP, topical administrations were performed using a sham suspension (without probiotic). All animals were euthanized at day 14. Gingival tissue, hemimandibles, and oral biofilm were collected. Data were statistically analyzed (P < 0.05). Results: Group EP presented greater bone porosity, trabecular separation, and connective tissue attachment loss (CTAL) as well as reduced bone volume than all other groups (P < 0.05). In group EP-HN019, there were greater proportions of Actinomyces and Streptococcus-like species and lower proportions of Veillonella parvula, Capnocytophaga sputigena, Eikenella corrodens, and Prevotella intermedia-like species than group EP. Group EP-HN019 presented greater expressions of osteoprotegerin and beta-defensins than group EP (P < 0.05). Group EP presented greater levels of interleukin-1 beta and receptor activator of nuclear factor-kappa B ligand than group EP-HN019 (P < 0.05). Conclusion: Topical use of B. lactis HN019 promotes a protective effect against alveolar bone loss and CTAL sattributable to EP in rats, modifying immunoinflammatory and microbiologic parameters. (AU)

• Processo FAPESP: 13/25022-7 - Efeitos da terapia com Bifidobacterium animalis subsp. lactis HN019 e Bdellovibrios bacteriovorus HD100 na periodontite experimental em ratos: estudo do perfil microbiológico, imunológico, histológico e genético da resposta do hospedeiro
• Beneficiário: Michel Reis Messora
• Modalidade de apoio: Auxílio à Pesquisa - Regular