John Q. Trojanowski, MD, PhD William Maul Measy - Truman G. Schnabel, Jr., M.D. Professor of Geriatric Medicine and Gerontology trojanow@upenn.eduFaculty pageNeurodegenerative diseases caused by filamentous aggregates of A-beta, tau and alpha-synuclein; Morphological, genetic, molecular biological and biochemical methods to study neurodegeneration.