University of Pennsylvania

of cancer's link with genes, cognitive therapy, Retin-A (the cream used to treat acne), Resistin, the Philadelphia gene (linked to chronic myelogenous leukemia) and the technology behind PET Scans were all discovered by Penn Med researchers. More recent gene research has led to the discovery of the genes for fragile X syndrome, the most common form of inherited mental retardation; spinal and bulbar muscular atrophy, a disorder marked by progressive muscle wasting; Charcot–Marie–Tooth disease, a progressive neurodegenerative disease that affects the hands, feet and limbs; and genetically engineered T cells used to treat lymphoblastic leukemia and refractory diffuse large B cell lymphoma. Another contribution to medicine was made by Ralph L. Brinster (Penn faculty member since 1965) who developed the scientific basis for in vitro fertilization and the transgenic mouse at Penn and was awarded the National Medal of Science in 2010.
Penn professors Alan J. Heeger, Alan MacDiarmid and Hideki Shirakawa invented a conductive …