University of Cambridge Oct 2 2025 Scientists have, for the first time, directly visualized and quantified the protein clusters believed to trigger Parkinson's, marking a major advance in the study of the world's fastest-growing neurological disease. These tiny clusters, called alpha-synuclein oligomers, have long been considered the likely culprits for Parkinson's disease to start developing in the brain, but until now, they have evaded direct detection in human brain tissue. Now, researchers