ArticleInternational journal of oral science2026
Periodontitis-associated salivary microbiota exacerbates systemic osteoclastogenesis via gut modulation and tryptophan metabolism suppression in ovariectomized mice.
Article in International journal of oral science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Hesperetin mitigates IBD-associated bone loss viaJournal of orthopaedic translation · 2026Article
- Oral and gut microbiota dysbiosis with strengthened oral-gut connectivity in post-stroke cognitive impairment.Frontiers in immunology · 2026Article
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Authors and funding
10 authors.
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Abstract
Epidemiological studies have highlighted an association between periodontitis and osteoporosis. However, the mechanism underlining this association remains unclear. Here, we revealed significant differences in the salivary microbiota between periodontally healthy individuals and periodontitis patients, with periodontitis patients exhibiting increased salivary microbiota diversity and an elevated abundance of pathogenic bacteria. Using an ovariectomized (OVX) mouse model, we demonstrated that the salivary microbiota from periodontitis patients exacerbated bone destruction by modulating the gut microbiota. Metabolomic analysis revealed that the periodontitis-associated salivary microbiota suppressed tryptophan metabolism. The tryptophan metabolite indole-3-lactic acid (ILA) directly inhibited osteoclast formation and differentiation. In OVX mice treated with periodontitis salivary microbiota, supplementation with ILA effectively suppressed osteoclastogenesis and alleviated the detrimental effects of periodontitis-associated salivary microbiota on systemic bones. In summary, our data demonstrate that periodontitis can affect systemic bone metabolism via the oral-gut axis and that ILA supplementation serves as a potential therapeutic option to mitigate these adverse effects.
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