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Gemella haemolysans inhibits the growth of the periodontal pathogen Porphyromonas gingivalis
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Gemella haemolysans inhibits the growth of the periodontal pathogen Porphyromonas gingivalis
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Journal Article
Gemella haemolysans inhibits the growth of the periodontal pathogen Porphyromonas gingivalis
2021
Overview
The oral microbiome plays an important role in the human microbial community and in maintaining the health of an individual. Imbalances in the oral microbiome may contribute to oral and systemic diseases. The progression of periodontal disease is closely related to the growth of bacteria, such as
Porphyromonas gingivalis
, in the oral cavity. However, the pathogen growth mechanism specific to periodontal disease remains unknown. This study aimed to identify bacteria associated with periodontal health by focusing on hemolytic bacteria. Unstimulated saliva samples were collected from ten periodontitis patients and five healthy subjects to detect and identify the presence of hemolytic bacteria. The saliva of healthy subjects contained a higher proportion of
G. haemolysans
than saliva samples from patients with periodontitis. Growth inhibition assays indicated that the protein components contained in the culture supernatant of
G. haemolysans
directly suppressed the growth of
P. gingivalis
. This study shows that the presence of
G. haemolysans
in saliva is associated with periodontal health and that it inhibits the growth of
P. gingivalis
in vitro.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
