Roberto Farina1, Mattia Severi2, Alberto Carrieri3, Elena Miotto4, Silvia Sabbioni4, Leonardo Trombelli5, Chiara Scapoli6. 1. Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Italy; Operative Unit of Dentistry, University-Hospital of Ferrara, Italy. Electronic address: roberto.farina@unife.it. 2. Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Italy. 3. Department of Life Sciences and Biotechnology - Section of Biology and Evolution, University of Ferrara, Italy. 4. Department of Life Sciences and Biotechnology - Section of Pathology and Applied Microbiology,University of Ferrara, Italy. 5. Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Italy; Operative Unit of Dentistry, University-Hospital of Ferrara, Italy. 6. Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Italy; Department of Life Sciences and Biotechnology - Section of Biology and Evolution, University of Ferrara, Italy.
Abstract
OBJECTIVE: The aim of this study was to use high-resolution whole metagenomic shotgun sequencing to characterize the subgingival microbiome of patients with/without type 2 Diabetes Mellitus and with/without periodontitis. DESIGN: Twelve subjects, falling into one of the four study groups based on the presence/absence of poorly controlled type 2 Diabetes Mellitus and moderate-severe periodontitis, were selected. For each eligible subject, subgingival plaque samples were collected at 4 sites, all representative of the periodontal condition of the individual (i.e., non-bleeding sulci in subjects without a history of periodontitis, bleeding pockets in patients with moderate-severe periodontitis). The subgingival microbiome was evaluated using high-resolution whole metagenomic shotgun sequencing. RESULTS: The results showed that: (i) the presence of type 2 Diabetes Mellitus and/or periodontitis were associated with a tendency of the subgingival microbiome to decrease in richness and diversity; (ii) the presence of type 2 Diabetes Mellitus was not associated with significant differences in the relative abundance of one or more species in patients either with or without periodontitis; (iii) the presence of periodontitis was associated with a significantly higher relative abundance of Anaerolineaceae bacterium oral taxon 439 in type 2 Diabetes Mellitus patients. CONCLUSIONS: Whole metagenomic shotgun sequencing of the subgingival microbiome was extremely effective in the detection of low-abundant taxon. Our results point out a significantly higher relative abundance of Anaerolineaceae bacterium oral taxon 439 in patients with moderate to severe periodontitis vs patients without history of periodontitis, which was maintained when the comparison was restricted to type 2 diabetics.
OBJECTIVE: The aim of this study was to use high-resolution whole metagenomic shotgun sequencing to characterize the subgingival microbiome of patients with/without type 2 Diabetes Mellitus and with/without periodontitis. DESIGN: Twelve subjects, falling into one of the four study groups based on the presence/absence of poorly controlled type 2 Diabetes Mellitus and moderate-severe periodontitis, were selected. For each eligible subject, subgingival plaque samples were collected at 4 sites, all representative of the periodontal condition of the individual (i.e., non-bleeding sulci in subjects without a history of periodontitis, bleeding pockets in patients with moderate-severe periodontitis). The subgingival microbiome was evaluated using high-resolution whole metagenomic shotgun sequencing. RESULTS: The results showed that: (i) the presence of type 2 Diabetes Mellitus and/or periodontitis were associated with a tendency of the subgingival microbiome to decrease in richness and diversity; (ii) the presence of type 2 Diabetes Mellitus was not associated with significant differences in the relative abundance of one or more species in patients either with or without periodontitis; (iii) the presence of periodontitis was associated with a significantly higher relative abundance of Anaerolineaceae bacterium oral taxon 439 in type 2 Diabetes Mellituspatients. CONCLUSIONS: Whole metagenomic shotgun sequencing of the subgingival microbiome was extremely effective in the detection of low-abundant taxon. Our results point out a significantly higher relative abundance of Anaerolineaceae bacterium oral taxon 439 in patients with moderate to severe periodontitis vs patients without history of periodontitis, which was maintained when the comparison was restricted to type 2 diabetics.
Authors: Thais de Cássia Negrini; Iracilda Zeppone Carlos; Cristiane Duque; Karina Sampaio Caiaffa; Rodrigo Alex Arthur Journal: Front Oral Health Date: 2021-09-09