Protein aggregation and brain changes in Parkinson’s-related dementia
Official title: Protein Aggregation and Neurotransmitter Deficits in Parkinson Disease
Funded at Washington University · NIH-11575370 · Data updated 2026-11-12
A study of brain tissue from people with Parkinson’s to understand how protein clumps and nerve cell loss relate to dementia.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Washington University NIH-funded |
| Lab location | 1 site (Saint Louis, United States) |
| Project start | August 1, 2016 |
| Project end | November 30, 2027 |
| Funding year | 2026 |
| Award (this year) | $147,725 |
| NIH project number | 3R01NS097799-09S1 |
| Project ID | NIH-11575370 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal participants are individuals with Parkinson’s disease who develop dementia and have agreed to brain donation for research.
✕Less likely to help
Results may not directly benefit individuals who do not develop dementia or who do not contribute brain tissue for research.
What this research studies
This project will study brain tissue from autopsies of people with Parkinson’s disease who had dementia to map where alpha-synuclein, amyloid beta, and tau accumulate and how this relates to nerve cell loss and brain region connections. Using postmortem analysis, researchers will quantify pathological proteins and assess loss of synapses and projections from key brain circuits. The goal is to connect these biological changes with cognitive and behavioral symptoms observed before death and with gait changes tracked in longitudinal studies. The work relies on samples from a longitudinal PD cohort, linking clinical data with tissue measurements.
Why it matters
Potential benefit: Understanding the brain changes in PD-related dementia could guide development of targeted therapies to slow or alter cognitive decline in Parkinson’s patients.
How similar studies have gone: Similar postmortem studies have clarified how multiple proteins associate with neurodegeneration in PD and ADRD, supporting this approach as informative.
Where this research is happening
-
Washington University
Saint Louis, United States Active
Researchers
- Principal investigator: Kotzbauer, Paul T — Washington University
- Study coordinator: Kotzbauer, Paul T
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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.