Parkinson’s disease (PD), which affects movement, and Alzheimer’s disease (AD), which affects memory, seem like distinct conditions. Research reveals these brain disorders share biological patterns. In January 2026, The Michael J. Fox Foundation hosted a wide-ranging panel discussion exploring how Parkinson’s, Alzheimer’s, and Lewy body dementia overlap, from symptoms to shared protein changes in the brain.
The panel included Dr. Melissa Armstrong, a movement disorder specialist who directs Lewy body dementia research at the University of Florida, Dr. Tom Tropea, chief medical officer at the Institute for Neurodegenerative Disorders, and Fred Goldstein, who has cared for his father with Lewy body dementia and his mother with Alzheimer’s. Katie Kopil, senior vice president and head of clinical research at The Michael J. Fox Foundation, moderated.
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