How mouth bacteria and their tiny particles might drive Alzheimer's
The role of oral microbially induced exosomes in Alzheimer's disease pathogenesis
This project explores whether tiny particles released during oral infection can travel to the brain and contribute to Alzheimer’s in older adults.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Augusta University NIH-funded |
| Lab location | 1 site (Augusta, United States) |
| Project ID | NIH-11249618 on NIH RePORTER |
What this research studies
Researchers will study how the oral pathogen Porphyromonas gingivalis and its proteases trigger production of exosomes—small membrane particles—that could cross the blood-brain barrier. They will use laboratory 3-D tissue models and cell systems to track exosome movement, analyze the molecular cargo inside those particles, and test whether that cargo causes brain-like cells to become inflamed or senescent. The team will compare laboratory findings with samples and data tied to Alzheimer’s patients and older control subjects when available. The overall approach aims to map how oral infection could lead to brain changes linked to Alzheimer’s disease.
Who could benefit from this research
Good fit: Ideal candidates would be older adults—typically age 65 and up—who have Alzheimer’s disease or cognitive impairment, and possibly comparison volunteers without dementia or with a history of periodontitis.
Not a fit: Younger people, individuals without Alzheimer’s pathology, or patients whose dementia has non-infectious causes may not directly benefit from this research.
Why it matters
Potential benefit: If successful, this work could point to new ways to prevent or slow Alzheimer’s by treating gum disease, blocking harmful exosomes, or targeting the molecular cargo they carry.
How similar studies have performed: Previous studies have detected Porphyromonas gingivalis components in Alzheimer brains and suggested links between periodontal disease and dementia, but direct evidence that oral exosomes drive Alzheimer’s pathology remains novel and unproven.
Where this research is happening
Augusta, United States
- Augusta University — Augusta, United States (Active)
Researchers
- Principal investigator: Elsayed, Ranya — Augusta University
- Study coordinator: Elsayed, Ranya
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.