Gut commensal Odoribacter splanchnicus attenuates hyperlipidemic periodontitis via gut-oral metabolic transmission of β-GPA
Depletion of Odoribacter splanchnicus in the gut is associated with hyperlipidemic periodontitis, and its repletion or supplementation with the metabolite β-GPA suppresses TLR4-driven inflammation in murine models.
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What the study showed
The abstract reports that patients and mice with the hyperlipidemia-periodontitis comorbidity exhibit reduced fecal O. splanchnicus. FMT from dysbiotic animals worsened periodontal destruction. Intragastric administration of live O. splanchnicus or direct β-GPA supplementation reproduced protective effects linked to inhibition of the TLR4 signaling cascade.
How it was done
Study combining human patient samples and a murine hyperlipidemic periodontitis model, using FMT, intragastric live bacterial administration, and direct β-GPA supplementation; outcomes included gut ecosystem analysis, metabolomics, and inflammatory signaling pathways.
Risk of bias
Abstract-only access prevents evaluation of human sample size, controls, statistical methods, and reproducibility. Proposed gut-oral mechanisms via β-GPA/TLR4 are derived predominantly from animal models without causal validation in humans.
What this study does NOT prove
The study does not prove that O. splanchnicus or β-GPA supplementation prevents or treats hyperlipidemic periodontitis in humans.
In clinical practice
No clinical recommendation is supported by this study. Preclinical and observational data do not justify probiotic use or β-GPA supplementation in patients.
Limitations
Abstract-only access prevents evaluation of human sample size, controls, statistical methods, and reproducibility. Proposed gut-oral mechanisms via β-GPA/TLR4 are derived predominantly from animal models without causal validation in humans.
Technical appendix
Version history
- 1.0 · 2026-07-25 — Auto-generated under Evidence Standard v1.0
Paid access: structured summary from public metadata; consult the original study at the source.