Susanne Schulz1, Martin Porsch2, Ivo Grosse3, Katrin Hoffmann4, Hans-Günter Schaller5, Stefan Reichert5. 1. Department of Operative Dentistry and Periodontology, Martin Luther University Halle-Wittenberg, Germany. Electronic address: susanne.schulz@medizin.uni-halle.de. 2. Institute of Human Genetics and Medical Biology, Martin Luther University Halle-Wittenberg, Germany; Institute for Computer Science, Martin Luther University Halle-Wittenberg, Germany. 3. Institute for Computer Science, Martin Luther University Halle-Wittenberg, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Germany. 4. Institute of Human Genetics and Medical Biology, Martin Luther University Halle-Wittenberg, Germany. 5. Department of Operative Dentistry and Periodontology, Martin Luther University Halle-Wittenberg, Germany.
Abstract
OBJECTIVE: The primary objectives of the study were to assess differences in complex subgingival bacterial composition between periodontitis-free persons and patients with generalized aggressive periodontitis (gAgP). BACKGROUND: The composition of the oral microbiota plays an important role for both oral and systemic diseases. However, the complex nature of the oral microbiome and its homeostasis is still poorly understood. MATERIAL AND METHODS: We compared the microbiome of 13 periodontitis-free persons to 13 patients with gAgP. The 16S rRNA genes were amplified, targeting the V3/V4 region using the MiSeq platform. RESULTS: In total, 1713 different bacterial species were mapped according to the Greengenes database. Using the Shannon index, no significant differences in alpha diversity were found between the two study groups. In principal component and linear discriminant analyses, disease-specific differences in beta diversity of the microbiome composition were evaluated. Bacteroidetes, Spirochaetes, and Synergistetes were more abundant in gAgP whereas Proteobacteria, Firmicutes, and Actinobacteria were associated with a healthy periodontium. At the bacterial species level, we showed that Porphyromonas gingivalis is the strongest indicator of gAgP. Treponema denticola and Tanerella forsythia of the "red complex" as well as Filifactor alocis were among the ten best biomarkers for gAgP. CONCLUSIONS: These results broaden our knowledge of disease-specific differences in the microbial community associated with generalized AgP. A more complex view of the composition of the oral microbiome describes the etiology of generalized AgP in more detail. These results could help to individually adapt periodontal therapy in these patients.
OBJECTIVE: The primary objectives of the study were to assess differences in complex subgingival bacterial composition between periodontitis-freepersons and patients with generalized aggressive periodontitis (gAgP). BACKGROUND: The composition of the oral microbiota plays an important role for both oral and systemic diseases. However, the complex nature of the oral microbiome and its homeostasis is still poorly understood. MATERIAL AND METHODS: We compared the microbiome of 13 periodontitis-freepersons to 13 patients with gAgP. The 16S rRNA genes were amplified, targeting the V3/V4 region using the MiSeq platform. RESULTS: In total, 1713 different bacterial species were mapped according to the Greengenes database. Using the Shannon index, no significant differences in alpha diversity were found between the two study groups. In principal component and linear discriminant analyses, disease-specific differences in beta diversity of the microbiome composition were evaluated. Bacteroidetes, Spirochaetes, and Synergistetes were more abundant in gAgP whereas Proteobacteria, Firmicutes, and Actinobacteria were associated with a healthy periodontium. At the bacterial species level, we showed that Porphyromonas gingivalis is the strongest indicator of gAgP. Treponema denticola and Tanerella forsythia of the "red complex" as well as Filifactor alocis were among the ten best biomarkers for gAgP. CONCLUSIONS: These results broaden our knowledge of disease-specific differences in the microbial community associated with generalized AgP. A more complex view of the composition of the oral microbiome describes the etiology of generalized AgP in more detail. These results could help to individually adapt periodontal therapy in these patients.
Authors: Em Kalala-Kazadi; Selena Toma; Jérôme F Lasserre; Fidèle Nyimi-Bushabu; Hubert Ntumba-Mulumba; Michel C Brecx Journal: J Int Soc Prev Community Dent Date: 2020-08-06
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