Microbiome, infections and immune pathways re‑emerge as prevention targets
Key Questions
How does the gut microbiome relate to dementia prevention?
Parabacteroides goldsteinii in mice (Nature Mar 2026) and UEA gut metabolites (79-80% acc n=150) link microbiome to early dementia signs. VOO RCT (n~650) improves microbiome-cognition.
What infections increase dementia risk?
P. gingivalis in saliva via PCR, UTIs, and oral pathogens like in leaky gums drive Alzheimer's. Zoster vaccine reduces risk by ~20% (Shingrix ~35% US).
Can vaccines prevent dementia progression?
Shingrix zoster vaccine shows ~35% reduction in US, overall ~20%. Targeting infections via vaccines is advancing prevention.
How does oral hygiene factor into dementia prevention?
P. gingivalis salivary detection and leaky gums epidemic link oral pathogens to Alzheimer's and heart disease. Oral hygiene is a key prevention target.
What dietary interventions target microbiome for dementia?
VOO RCT improves microbiome and cognition (n~650). Diet modulates microbiome pathways re-emerging as prevention targets.
Parabacteroides (Nature Mar 2026); P. gingivalis; VOO RCT n~650; zoster ~20-35%; UTIs +19%; gut n=150 79-80%. Diet/vax/microbiome/oral advancing.