Brad A. Racette, M.D.
Dr. Racette is a Professor and Executive Vice-Chairman of Neurology at Washington University School of Medicine in St. Louis and an Honorary Professor of Public Health at the University of the Witwatersrand in Johannesburg, South Africa. His research focuses on occupational and environmental manganese neurotoxicity and environmental risk factors for PD, supported by the National Institutes of Health, Michael J. Fox Foundation, and the American Parkinson Disease Association. This research includes numerous projects in the U.S., South Africa, and Europe. He is former chairman of the Neurologic Aging Musculoskeletal Epidemiology Study Section at NIH and has served as a peer reviewer and advisor for numerous medical journals and international regulatory agencies. He is the recipient of numerous awards and has authored over 130 peer reviewed publications. For a complete list of Dr. Racette’s publications, please go to the following link:
Susan Criswell, M.D., MSCI
Dr. Criswell is an assistant professor of neurology at Washington University in St. Louis. She completed neurology residency at Washington University in St. Louis in 2005 followed by a clinical fellowship in movement disorders and a post-doctoral degree in clinical investigation. She has conducted many studies investigating environmental and occupational risk factors for parkinsonism using PET and MRI neuroimaging techniques. The main focus of her current research efforts has been applying PET and MRI and PET imaging techniques to better understand manganese neurotoxicity. For a complete list of Dr. Criswell’s publications, please go to the following link:
Susan Searles Nielsen, PhD
Susan Searles Nielsen, Ph.D., is an Assistant Professor in Neurology at the Washington University School of Medicine in St. Louis, and an Affiliate Assistant Professor in Neurology and the Center for Ecogenetics and Environmental Health at the University of Washington in Seattle. An epidemiologist by training, she has extensive experience in the design and analysis of human research studies. Her current primary area of research is the etiology of parkinsonism and PD. She is a co-investigator on several studies of these outcomes in relation to occupational and environmental exposures in the U.S., Europe, Asia, and Africa, with funding from the National Institutes of Health, Michael J. Fox Foundation, and the American Parkinson Disease Association. Secondary interests include gene-environment interactions, pediatric brain tumors, and smoking initiation and nicotine dependence. She is an associate editorial board member for the International Journal of Molecular Epidemiology and Genetics, and served on working groups convened by state, national and international health agencies including the World Health Organization. For a complete list of Dr. Searles Nielsen’s publications, please go to the following link:
Angela is the manager of the Racette lab and has over 8 years of experience working for Express Scripts and Wellpoint as a data manager and analyst before moving to Washington University. For the last 8 years she has worked as a data manager and study coordinator in Dr. Racette’s laboratory.
Melissa Ammel, R.N.
Melissa is a nurse coordinator who has coordinated clinical trials for 14 years. She serves as a nurse in the Racette lab’s investigator initiated research projects.
Karen is a clinical research coordinator II and has worked in clinical research for 5 years. Her primary responsibility is data management.
Stacy is a clinical research coordinator II and has coordinated clinical research studies for over 10 years. Her primary responsibilities include subject recruitment and regulatory.
Laura is a clinical research coordinator I and has coordinated clinical research studies for 3 years. Her primary responsibilities include subject recruitment and coordinating clinical trials visits.
Jason has post-graduate training in genetic epidemiology and has worked as a data analyst for over 10 years. His current responsibilities include PET and MRI image processing and data analysis.