Why Parkinson's medications can cause involuntary movements and impulsive behaviors
Striatal Mechanisms of Dyskinesia and Impulse Control in Parkinson’s Disease
Researchers are looking at how specific cells and circuits in a brain region called the striatum drive levodopa-related involuntary movements and dopamine-agonist–related impulsive behaviors in people with Parkinson's disease.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of California, San Francisco NIH-funded |
| Lab location | 1 site (San Francisco, United States) |
| Project ID | NIH-11333820 on NIH RePORTER |
What this research studies
This project uses mouse models that mimic levodopa-induced dyskinesia (LID) and dopamine-agonist–linked impulse control problems (ICD) to study Parkinson's disease. Scientists record nerve cell activity both in living animals and in brain tissue slices and use optogenetics (light) and chemogenetics (designer drugs) to turn specific neurons on or off. Prior work found distinct striatal neurons that fire with dyskinesia versus those tied to therapeutic benefit, and this project will map those cellular and circuit differences. The goal is to pinpoint which cells and connections produce harmful side effects so future treatments can target them more precisely.
Who could benefit from this research
Good fit: People with Parkinson's disease who experience levodopa-induced involuntary movements or impulse-control symptoms from dopamine agonists would be the most relevant future candidates for trials or sample contributions related to this work.
Not a fit: Patients who do not use dopamine replacement therapies or whose symptoms are unrelated to dyskinesia or impulse-control behaviors are less likely to see direct benefits from this specific research in the near term.
Why it matters
Potential benefit: If successful, the work could reveal targets in the striatum that lead to new treatments or strategies to reduce dyskinesia and impulse-control problems in Parkinson's disease.
How similar studies have performed: Animal-model studies have already identified striatal neurons linked to dyskinesia, but mechanistic work on dopamine-agonist–related impulse-control disorders is newer and less established.
Where this research is happening
San Francisco, United States
- University of California, San Francisco — San Francisco, United States (Active)
Researchers
- Principal investigator: Nelson, Alexandra — University of California, San Francisco
- Study coordinator: Nelson, Alexandra
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.