Parkinson's Disease Protein Causes Disease Spread and Neuron Death (image) University of Pennsylvania School of Medicine Share Print E-Mail Caption The image shows the substantia nigra of a wildtype mouse 3 months following the injection of a-syn fibrils. The red represents the misfolded form of a-syn and reveals its accumulation as inclusions in dopamine neurons that are labeled green. This pathology is accompanied by a progressive loss of motor function in these fibril-inoculated animals. Credit Kelvin C. Luk, PhD, Perelman School of Medicine, University of Pennsylvania Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.