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Article Synopsis
  • Red complex bacteria are highly virulent in periodontal disease, and this study focused on their relationships with other oral bacteria in older Japanese individuals.
  • Polymerase chain reaction was used to analyze dental plaque from 116 subjects, finding that individuals positive for red complex bacteria had significantly higher detection rates of certain periodontal pathogens compared to those who were negative.
  • The findings indicate that individuals harboring all three red complex species have a unique oral microbiome, showcasing greater α-diversity and lower β-diversity, suggesting they may be more prone to developing periodontal disease.
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Recent studies have begun exploring the potential involvement of microbiota in the pathogenesis of oral lichen planus (OLP), yet comprehensive investigations remain limited. Hence, this study aimed to compare the microbial profiles in saliva samples obtained from patients with OLP against those from healthy controls (HC), along with a comparison between erosive (E) and non-erosive (NE) OLP patients. Saliva samples were collected from 60 OLP patients (E: = 25, NE: = 35) and 30 HC individuals.

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Microbiome landscape of lesions and adjacent normal mucosal areas in oral lichen planus patient.

Front Microbiol

October 2022

Department of Stomatology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, China.

The pathogenesis of oral lichen planus (OLP) remains unclear, and microbial dysbiosis has been proposed to play a role in the pathogenesis of OLP. Oral mucosal swabs from 77 OLP patients and 76 healthy subjects were collected. The bacterial community among the OLP lesion, the adjacent normal mucosal, and the oral mucosal surface in healthy people were analyzed by 16S sequencing.

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Objective: To investigate the composition and abundance of candidate phyla radiation (CPR) in the oral cavity in caries patients and a healthy population.

Methods: The raw macrogenomic sequencing data for a total of 88 subjects were downloaded from the National Centre for Biotechnology Sequence Read Archive (NCBI SRA) public database according to the public data usage specifications. Trimmomatic (Department for Metabolic Networks, Potsdam, Germany) and Bowtie 2 (University of Maryland, College Park, MD, USA) were used to quality control and dehost the host sequences.

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species are common inhabitants of the oral cavity and can be responsible for systemic diseases in immunocompromised patients with granulocytopenia. Furthermore, it has been reported that some clinical isolates of species produce extended-spectrum β-lactamases (ESBLs). Information is lacking about the types of β-lactamase genes possessed by spp.

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