Fellow of AAAS, Texas Academy Sciences; Linnean Society London; Royal Society Chemistry; Microscopy Society America; Society Biology; Royal College Pathologists; Royal Microscopical Society; International Engineering and Technology Institute. Foreign member Mexican, Portuguese and Spanish Academies of Science. Member of the Dana Foundation and the IberoAmerican Molecular Biology Organization. Past-President of American Association of Neuropathologists and SWARM of AAAS. Study the pathology of neurodegenerative diseases including amyloidosis, metabolism and oxidative stress. Over 67,000 citations, H=130.