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dc.contributor.authorGarcía-Mato, E.
dc.contributor.authorMartínez Lamas, Lucía
dc.contributor.authorAlvarez Fernández, Maximiliano 
dc.contributor.authorVarela-Aneiros, I.
dc.contributor.authorDiniz Freitas, Marcio
dc.contributor.authorLimeres Posse, Jacobo
dc.contributor.authorDiz Dios, Pedro
dc.date.accessioned2025-08-26T09:27:55Z
dc.date.available2025-08-26T09:27:55Z
dc.date.issued2022
dc.identifier.citationGarcía-Mato E, Martínez-Lamas L, Álvarez-Fernández M, Varela-Aneiros I, Diniz-Freitas M, Limeres-Posse J, et al. Molecular Detection of Streptococcus downii sp. nov. from Dental Plaque Samples from Patients with Down Syndrome and Non-Syndromic Individuals. Microorganisms. 2022;10(6).
dc.identifier.issn2076-2607
dc.identifier.otherhttps://portalcientifico.sergas.gal/documentos/632f1d5b4d892e5b9b2176a9*
dc.identifier.urihttp://hdl.handle.net/20.500.11940/20668
dc.description.abstractBackgroundA new bacterial species has recently been identified in the dental plaque of an adolescent with Down syndrome. The species is known as Streptococcus downii sp. nov. (abbreviated to S. downii), and it inhibits the growth of S. mutans and certain periodontal pathogens. The aim of this study was to determine the distribution of S. downii in the oral cavity of individuals with Down syndrome. Methods: A specific polymerase chain reaction for the operon of bacteriocin (class IIb lactobin A/cerein 7B family) was designed to detect S. downii in individuals with Down syndrome (n = 200) and in the general population (n = 100). We also compared the whole genome of S. downii and the regions related to its bacteriocins against 127 metagenomes of supragingival plaque of the "Human Microbiome Project". Results: We detected the specific gene of the S. downii bacteriocin in an individual with Down syndrome (Cq, 34.52; GE/µL, 13.0) and in an individual of the non-syndromic control group (Cq, 34.78 Cq; GE/µL, 4.93). The prevalence of S. downii was ?1% both in Down syndrome and in the general population, which did not allow for clinical-microbiological correlations to be established. This result was confirmed by detecting only one metagenome with an ANIm with approximately 95% homology and with 100% homology with ORFs that code class IIb lactobiocin A/cerein 7B bacteriocins among the 127 metagenomes of the "Human Microbiome Project" tested. Conclusions: The detection rate of S. downii in the supragingival dental plaque was very low, both in the Down syndrome individuals and in the non-syndromic controls. A clinical-microbiological correlation could therefore not be established.en
dc.description.sponsorshipThis research was co-funded by the Xunta de Galicia under the Ignicia Programme, Axencia Galega de Innovacion, GAIN (12/08/2016; GRANT_NUMBER: IN855A).en
dc.language.isoeng
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleMolecular Detection of Streptococcus downii sp. nov. from Dental Plaque Samples from Patients with Down Syndrome and Non-Syndromic Individuals*
dc.typeArticleen
dc.authorsophosGarcía-Mato, P. E.
dc.authorsophosMartínez-Lamas, L.
dc.authorsophosÁlvarez-Fernández, M.
dc.authorsophosVarela-Aneiros, I.
dc.authorsophosDiniz-Freitas, M.
dc.authorsophosLimeres-Posse, J.
dc.authorsophosDiz, Dios
dc.identifier.doi10.3390/microorganisms10061098
dc.identifier.sophos632f1d5b4d892e5b9b2176a9
dc.issue.number6
dc.journal.titleMicroorganisms*
dc.relation.projectIDXunta de Galicia; Axencia Galega de Innovacion, GAIN [IN855A]
dc.relation.publisherversionhttps://www.mdpi.com/2076-2607/10/6/1098/pdf?version=1653546930;https://mdpi-res.com/d_attachment/microorganisms/microorganisms-10-01098/article_deploy/microorganisms-10-01098.pdf?version=1653546930es
dc.rights.accessRightsopenAccess
dc.subject.keywordIDISes
dc.subject.keywordAS Santiagoes
dc.subject.keywordCHUSes
dc.subject.keywordAS Vigoes
dc.subject.keywordCHUVIes
dc.subject.keywordIISGSes
dc.subject.keywordAP Santiagoes
dc.typefidesArtículo Científico (incluye Original, Original breve, Revisión Sistemática y Meta-análisis)es
dc.typesophosArtículo Originales
dc.volume.number10


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