The phylum Synergistetes in gingivitis and necrotizing ulcerative gingivitis. 2012

Angelica Baumgartner, and Thomas Thurnheer, and Helga Lüthi-Schaller, and Rudolf Gmür, and Georgios N Belibasakis
Oral Microbiology and Immunology, Institute of Oral Biology, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland.

The clinical manifestation of necrotizing ulcerative gingivitis (NUG) is distinct from that of common gingivitis in that it is characterized by local necrosis of the gingival tissues, rapid onset, pain and extensive bleeding. The phylum Synergistetes is a novel bacterial phylum consisting of Gram-negative anaerobes, with evidence of presence in biofilms associated with periodontal and endodontic infections. To date, the involvement of members of this phylum in NUG has not been investigated. This study aimed to evaluate the presence and levels of known human oral Synergistetes bacterial clusters in dental plaque from patients with NUG and compare them with those found in gingivitis. Marginal dental plaque samples from 21 NUG and 21 gingivitis patients were analysed quantitatively by fluorescent in situ hybridization and microscopy for members of two oral Synergistetes clusters (A and B) and for Jonquetella anthropi. Synergistetes cluster A bacteria were detected in all samples but at higher levels (9.4-fold) and proportions (2.5-fold) in NUG patients than in gingivitis patients. However, with regard to Synergistetes cluster B bacteria, there were no differences between NUG and gingivitis patients. J. anthropi was detected in only half of the samples and at lower levels than the other taxa. In conclusion, these data demonstrate that Synergistetes cluster A bacteria, but not cluster B bacteria or J. anthropi, are more strongly associated with NUG than with gingivitis.

UI MeSH Term Description Entries
D008297 Male Males
D010802 Phylogeny The relationships of groups of organisms as reflected by their genetic makeup. Community Phylogenetics,Molecular Phylogenetics,Phylogenetic Analyses,Phylogenetic Analysis,Phylogenetic Clustering,Phylogenetic Comparative Analysis,Phylogenetic Comparative Methods,Phylogenetic Distance,Phylogenetic Generalized Least Squares,Phylogenetic Groups,Phylogenetic Incongruence,Phylogenetic Inference,Phylogenetic Networks,Phylogenetic Reconstruction,Phylogenetic Relatedness,Phylogenetic Relationships,Phylogenetic Signal,Phylogenetic Structure,Phylogenetic Tree,Phylogenetic Trees,Phylogenomics,Analyse, Phylogenetic,Analysis, Phylogenetic,Analysis, Phylogenetic Comparative,Clustering, Phylogenetic,Community Phylogenetic,Comparative Analysis, Phylogenetic,Comparative Method, Phylogenetic,Distance, Phylogenetic,Group, Phylogenetic,Incongruence, Phylogenetic,Inference, Phylogenetic,Method, Phylogenetic Comparative,Molecular Phylogenetic,Network, Phylogenetic,Phylogenetic Analyse,Phylogenetic Clusterings,Phylogenetic Comparative Analyses,Phylogenetic Comparative Method,Phylogenetic Distances,Phylogenetic Group,Phylogenetic Incongruences,Phylogenetic Inferences,Phylogenetic Network,Phylogenetic Reconstructions,Phylogenetic Relatednesses,Phylogenetic Relationship,Phylogenetic Signals,Phylogenetic Structures,Phylogenetic, Community,Phylogenetic, Molecular,Phylogenies,Phylogenomic,Reconstruction, Phylogenetic,Relatedness, Phylogenetic,Relationship, Phylogenetic,Signal, Phylogenetic,Structure, Phylogenetic,Tree, Phylogenetic
D003198 Computer Simulation Computer-based representation of physical systems and phenomena such as chemical processes. Computational Modeling,Computational Modelling,Computer Models,In silico Modeling,In silico Models,In silico Simulation,Models, Computer,Computerized Models,Computer Model,Computer Simulations,Computerized Model,In silico Model,Model, Computer,Model, Computerized,Model, In silico,Modeling, Computational,Modeling, In silico,Modelling, Computational,Simulation, Computer,Simulation, In silico,Simulations, Computer
D003773 Dental Plaque A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms. Plaque, Dental
D005260 Female Females
D005891 Gingivitis Inflammation of gum tissue (GINGIVA) without loss of connective tissue. Gingivitides
D005892 Gingivitis, Necrotizing Ulcerative An acute or chronic GINGIVITIS characterized by redness and swelling, NECROSIS extending from the interdental papillae along the gingival margins, PAIN; HEMORRHAGE, necrotic odor, and often a pseudomembrane. The condition may extend to the ORAL MUCOSA; TONGUE; PALATE; or PHARYNX. The etiology is somewhat unclear, but may involve a complex of FUSOBACTERIUM NUCLEATUM along with spirochetes BORRELIA or TREPONEMA. Stomatitis, Ulcerative,Trench Mouth,Vincent Angina,Vincent Infection,Acute Membranous Gingivitis,Acute Necrotizing Ulcerative Gingivitis,Fusospirillary Gingivitis,Fusospirillosis,Phagedenic Gingivitis,Vincent's Gingivitis,Vincent's Infection,Vincent's Stomatitis
D006089 Gram-Negative Anaerobic Bacteria A large group of anaerobic bacteria which show up as pink (negative) when treated by the Gram-staining method. Gram Negative Anaerobic Bacteria
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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