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Article: Species-Level Salivary Microbial Indicators of Well-Resolved Periodontitis: A Preliminary Investigation
Title | Species-Level Salivary Microbial Indicators of Well-Resolved Periodontitis: A Preliminary Investigation |
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Authors | |
Keywords | saliva salivary microbiota oral microbiome periodontal diseases 16S rRNA gene sequencing |
Issue Date | 2019 |
Publisher | Frontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/Cellular_and_Infection_Microbiology |
Citation | Frontiers in Cellular and Infection Microbiology, 2019, v. 9, p. article no. 347 How to Cite? |
Abstract | Objective: To profile the salivary microbiomes of a Hong Kong Chinese cohort at a species-level resolution and determine species that discriminated clinically resolved periodontitis from periodontally healthy cases.
Methods: Salivary microbiomes of 35 Hong Kong Chinese subjects' under routine supportive dental care were analyzed. All subjects had been treated for any dental caries or periodontal disease with all restorative treatment completed at least 1 year ago and had ≤3 residual pockets. They were categorized based on a past diagnosis of chronic periodontitis into “healthy” (H) or “periodontitis” (P) categories. Unstimulated whole saliva was collected, genomic DNA was isolated, and high throughput Illumina MiSeq sequencing of 16S rRNA (V3-V4) gene amplicons was performed. The sequences were assigned taxonomy at the species level by using a BLASTN based algorithm that used a combined reference database of HOMD RefSeqV14.51, HOMD RefSeqExtended V1.1 and GreenGeneGold. Species-level OTUs were subjected to downstream analysis in QIIME and R. For P and H group comparisons, community diversity measures were compared, differentially abundant species were determined using DESeq2, and disease indicator species were determined using multi-level pattern analysis within the R package “indicspecies.”
Results: P subjects were significantly older than H subjects (p = 0.003) but not significantly different in their BOP scores (p = 0.82). No significant differences were noted in alpha diversity measures after adjusting for age, gender, and BOP or in the beta diversity estimates. Four species; Treponema sp. oral taxon 237, TM7 sp. Oral Taxon A56, Prevotella sp. oral taxon 314, Prevotella sp. oral taxon 304, and Capnocytophaga leadbetteri were significantly more abundant in P than in the H group. Indicator species analysis showed 7 significant indicators species of P group. Fusobacterium sp oral taxon 370 was the sole positive indicator of P group (positive predictive value = 0.9, p = 0.04). Significant indicators of the H category were Leptotrichia buccalis, Corynebacterium matruchotii, Leptotrichia hofstadii, and Streptococcus intermedius.
Conclusion: This exploratory study showed salivary microbial species could discriminate treated, well-maintained chronic periodontitis from healthy controls with similar gingival inflammation levels. The findings suggest that certain salivary microbiome features may identify periodontitis-susceptible individuals despite clinical disease resolution. |
Persistent Identifier | http://hdl.handle.net/10722/278560 |
ISSN | 2023 Impact Factor: 4.6 2023 SCImago Journal Rankings: 1.285 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Acharya, A | - |
dc.contributor.author | Chen, T | - |
dc.contributor.author | Chan, Y | - |
dc.contributor.author | Watt, RM | - |
dc.contributor.author | Jin, L | - |
dc.contributor.author | Mattheos, N | - |
dc.date.accessioned | 2019-10-21T02:09:47Z | - |
dc.date.available | 2019-10-21T02:09:47Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Frontiers in Cellular and Infection Microbiology, 2019, v. 9, p. article no. 347 | - |
dc.identifier.issn | 2235-2988 | - |
dc.identifier.uri | http://hdl.handle.net/10722/278560 | - |
dc.description.abstract | Objective: To profile the salivary microbiomes of a Hong Kong Chinese cohort at a species-level resolution and determine species that discriminated clinically resolved periodontitis from periodontally healthy cases. Methods: Salivary microbiomes of 35 Hong Kong Chinese subjects' under routine supportive dental care were analyzed. All subjects had been treated for any dental caries or periodontal disease with all restorative treatment completed at least 1 year ago and had ≤3 residual pockets. They were categorized based on a past diagnosis of chronic periodontitis into “healthy” (H) or “periodontitis” (P) categories. Unstimulated whole saliva was collected, genomic DNA was isolated, and high throughput Illumina MiSeq sequencing of 16S rRNA (V3-V4) gene amplicons was performed. The sequences were assigned taxonomy at the species level by using a BLASTN based algorithm that used a combined reference database of HOMD RefSeqV14.51, HOMD RefSeqExtended V1.1 and GreenGeneGold. Species-level OTUs were subjected to downstream analysis in QIIME and R. For P and H group comparisons, community diversity measures were compared, differentially abundant species were determined using DESeq2, and disease indicator species were determined using multi-level pattern analysis within the R package “indicspecies.” Results: P subjects were significantly older than H subjects (p = 0.003) but not significantly different in their BOP scores (p = 0.82). No significant differences were noted in alpha diversity measures after adjusting for age, gender, and BOP or in the beta diversity estimates. Four species; Treponema sp. oral taxon 237, TM7 sp. Oral Taxon A56, Prevotella sp. oral taxon 314, Prevotella sp. oral taxon 304, and Capnocytophaga leadbetteri were significantly more abundant in P than in the H group. Indicator species analysis showed 7 significant indicators species of P group. Fusobacterium sp oral taxon 370 was the sole positive indicator of P group (positive predictive value = 0.9, p = 0.04). Significant indicators of the H category were Leptotrichia buccalis, Corynebacterium matruchotii, Leptotrichia hofstadii, and Streptococcus intermedius. Conclusion: This exploratory study showed salivary microbial species could discriminate treated, well-maintained chronic periodontitis from healthy controls with similar gingival inflammation levels. The findings suggest that certain salivary microbiome features may identify periodontitis-susceptible individuals despite clinical disease resolution. | - |
dc.language | eng | - |
dc.publisher | Frontiers Research Foundation. The Journal's web site is located at http://www.frontiersin.org/Cellular_and_Infection_Microbiology | - |
dc.relation.ispartof | Frontiers in Cellular and Infection Microbiology | - |
dc.rights | This Document is Protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | saliva | - |
dc.subject | salivary microbiota | - |
dc.subject | oral microbiome | - |
dc.subject | periodontal diseases | - |
dc.subject | 16S rRNA gene sequencing | - |
dc.title | Species-Level Salivary Microbial Indicators of Well-Resolved Periodontitis: A Preliminary Investigation | - |
dc.type | Article | - |
dc.identifier.email | Acharya, A: aneesha@hku.hk | - |
dc.identifier.email | Chan, Y: yukicyk@hku.hk | - |
dc.identifier.email | Watt, RM: rmwatt@hku.hk | - |
dc.identifier.email | Jin, L: ljjin@hkucc.hku.hk | - |
dc.identifier.email | Mattheos, N: mattheos@hku.hk | - |
dc.identifier.authority | Chan, Y=rp02228 | - |
dc.identifier.authority | Watt, RM=rp00043 | - |
dc.identifier.authority | Jin, L=rp00028 | - |
dc.identifier.authority | Mattheos, N=rp01662 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.3389/fcimb.2019.00347 | - |
dc.identifier.pmid | 31681625 | - |
dc.identifier.pmcid | PMC6797555 | - |
dc.identifier.scopus | eid_2-s2.0-85074275322 | - |
dc.identifier.hkuros | 307563 | - |
dc.identifier.volume | 9 | - |
dc.identifier.spage | article no. 347 | - |
dc.identifier.epage | article no. 347 | - |
dc.identifier.isi | WOS:000496936600001 | - |
dc.publisher.place | Switzerland | - |
dc.identifier.issnl | 2235-2988 | - |