Mouse Study on Porphyromonas gingivalis-Induced Periodontitis and EAE

In a study with mice, it was found that Porphyromonas gingivalis-induced periodontitis significantly aggravated neurological deficits associated with experimental autoimmune encephalomyelitis (EAE) over a follow-up of 15 to 21 days. The study also noted increased T cell infiltration in the spinal cord and activation of NF-κB signaling pathways.

Tags: #Neuroinflammation
Most relevant to: —
Source: Read original source (PMID 42807870)

This plain-English summary was written by AI from a published abstract and may contain errors. It is not medical advice. Read the original study and talk to your MS team before making decisions about treatment.

Why it matters

These findings suggest a connection between periodontal disease and the worsening of EAE symptoms, potentially highlighting mechanisms that could be involved in multiple sclerosis (MS) pathogenesis.

What this does not prove

The results stem from an animal model, which may not directly apply to humans, and further research is needed to understand the implications for human health.

Next milestone

No next milestone was established from the available source.

Study facts

Study design: Laboratory
Participants / samples: Not reported
Randomised: Yes
Controlled: No
Primary endpoint met: Yes
Relevant MS type: All
Publication date: 2026-09-26
Evidence reviewed: Abstract only
Regulatory approval: Not reported
Research areas: Neuroinflammation, Other

Original sources

Primary evidencePorphyromonas gingivalis promotes T-cell homing via the NF-κB/CXCR3 signaling pathway in experimental autoimmune encephalomyelitis. ↗DOI: 10.1080/20002297.2026.2736905

Supporting passages (17)

primary endpoint metgingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

study phaseMice were randomized into four groups (n = 8): control, periodontitis only, EAE only, and EAE with periodontitis.

study designMETHODS: Mice were randomized into four groups (n = 8): control, periodontitis only, EAE only, and EAE with periodontitis.

subjectsMice were randomized into four groups (n = 8): control, periodontitis only, EAE only, and EAE with periodontitis.

speciesMice were randomized into four groups (n = 8): control, periodontitis only, EAE only, and EAE with periodontitis.

randomizedMice were randomized into four groups (n = 8): control, periodontitis only, EAE only, and EAE with periodontitis.

controlledgingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

peer reviewedJournal: Journal of oral microbiology

research categoriesidentify a potential mechanistic link between periodontitis and MS pathogenesis.

relevant ms typesMultiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system (CNS); experimental autoimmune encephalomyelitis (EAE) is its model.

publication datePublication date: 2026-09-26

interventiongingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

comparatorgingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

primary endpointNeurological deficits were assessed daily.

follow upP. gingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

findingsgingivalis -induced periodontitis significantly aggravated EAE neurological deficits from days 15 to 21.

limitationsTitle: Porphyromonas gingivalis promotes T-cell homing via the NF-κB/CXCR3 signaling pathway in experimental autoimmune encephalomyelitis.

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