PD vs MSA (IMAGE) University of Pennsylvania School of Medicine Caption (A) α-Synuclein aggregations in Parkinson's disease (PD) and multiple system atrophy (MSA) patients. (B) GCI-α-Syn and LB-α-Syn strains do not have cell-type preferences and they can both be initiated by the same misfolded α-Syn seeds (grey spheres), but different intracellular environments of neurons and oligodendrocytes convert these α-Syn seeds to different strains. Credit Virginia Lee, PhD, Perelman School of Medicine, University of Pennsylvania; Nature Usage Restrictions None License Licensed content 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.