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

Stress-related salivary proteins affect the production of volatile sulfur compounds by oral bacteria

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de Lima, Patricia Oliveira [1] ; Nani, Bruno Dias [1] ; Almeida, Barbara [1] ; Marcondes, Fernanda Klein [1] ; Groppo, Francisco Carlos [1] ; Alves de Moraes, Antonio Bento [1] ; Franz-Montan, Michelle [1] ; Cogo-Mueller, Karina [2, 1]
Total Authors: 8
[1] Univ Campinas UNICAMP, Dept Physiol Sci, Piracicaba Dent Sch, Piracicaba, SP - Brazil
[2] Univ Campinas Unicamp, Fac Pharmaceut Sci, Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: ORAL DISEASES; v. 24, n. 7, p. 1358-1366, OCT 2018.
Web of Science Citations: 1

ObjectiveTo determine whether stress-related substances and sex hormones influence the growth and in vitro production of volatile sulfur compounds (VSCs) by Solobacterium moorei and Fusobacterium nucleatum. Materials and MethodsBacteria growth and VSCs production were evaluated in the presence of alpha-amylase, beta-defensin-2, mucin, estradiol, and progesterone. Growth was evaluated by colony counting, and the production of the VSCs hydrogen sulfide (H2S) and methyl mercaptan (CH3SH) was measured using the Oral Chroma instrument. ResultsMucin induced the production of H2S by both bacteria, but had a slight inhibitory effect on CH3SH production by F.nucleatum. It also increased the viability of F.nucleatum. Alpha-amylase increased H2S production by S.moorei and CH3SH production by F.nucleatum, but had no effect on H2S production by F.nucleatum. No substance altered the viability of S.moorei. No effects of beta-defensin-2, estradiol, or progesterone were observed. ConclusionThe salivary stress-related proteins mucin and alpha-amylase altered VSCs production by F.nucleatum and S.moorei, favoring H2S production. These findings are a step toward understanding the relation between stress and increased amounts of H2S. (AU)

FAPESP's process: 13/26691-0 - Relationship between stress and oral microbiota: the effect on the production of volatile sulphur compounds and the role of beta-defensin
Grantee:Bruno Dias Nani
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 11/50419-2 - Oral health and behavior: interdisciplinary perspectives and emotional aspects in the health-disease process
Grantee:Antonio Bento Alves de Moraes
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/11481-2 - Relationship between stress, female sex hormones and oral microbiota: effect on volatile sulfur compounds production and beta-defensin role
Grantee:Patricia Oliveira de Lima
Support Opportunities: Scholarships in Brazil - Post-Doctoral