Archive · 13 Jun 2025
Study: Gut Bacteria Linked to Cognitive Decline in Parkinson's
Imagine your body is like a house, and your gut and mouth are like different rooms.
Scientists found that in people with Parkinson's, some bad bacteria from the mouth room can travel to the gut room.
These bad bacteria make yucky stuff that can hurt the brain.
This study looked at people with Parkinson's who have trouble with memory.
They found that those with more memory problems had more of these bad bacteria in their gut.
The scientists used a special computer to see how these bad bacteria might be linked to memory issues.
They hope this helps doctors find and treat Parkinson's earlier.
This also means taking good care of your mouth and eating healthy might be extra important for people with Parkinson's.
Study links bacteria in the mouth and gut to cognitive decline in Parkinson's disease.
Changes in gut bacteria are associated with the progression from mild cognitive issues to dementia in Parkinson's patients.
Researchers analyzed stool and saliva samples from Parkinson's patients with varying degrees of cognitive impairment and a healthy control group.
Harmful bacteria, often originating from the mouth, were found in the gut of patients with cognitive impairment, releasing toxins.
AI was used to link these toxins to cognitive decline, potentially offering new diagnostic markers and treatment targets.
- Who
- Researchers from King’s College London conducted the study, analyzing samples from Parkinson's patients and a control group.
- What
- Study reveals link between oral and gut bacteria to cognitive decline in Parkinson’s.
- When
- The study was recently published.
- Where
- The study was conducted at King's College London.
- Why
- To understand the role of gut and oral bacteria in the progression of cognitive decline in Parkinson's disease and find potential early diagnostic markers and treatment targets.
- Main Focus
- Relationship between gut and oral bacteria and cognitive decline in Parkinson's
- Research Institution
- King’s College London
- Sample Types
- Stool and saliva
- Groups Studied
- Parkinson's patients (with and without dementia) and a healthy control group
- Key Finding
- More harmful bacteria in the gut of patients with cognitive impairment.
- Process Described
- Oral-gut translocation: Oral bacteria moving into the gut and releasing toxins.
- Tech Used
- Artificial Intelligence (AI) to link toxins to cognitive decline.