Dr. Ellen Sidransky is chief of the Section of Molecular Neurogenetics and is a pediatrician and geneticist in the National Human Genome Research Institute, part of the National Institutes of Health (NIH). She received her B.A. from Brandeis University in 1977 and her M.D. from Tulane University in 1981. Dr. Sidransky trained in pediatrics at Northwestern University and in clinical genetics at the NIH. She has been a tenured NIH investigator and section chief since 2000. Her research interest includes both clinical and basic aspects of Gaucher disease and Parkinson’s disease, studies of genotype/phenotype correlation and genetic modifiers, clinical insights from models, and treatment strategies for the lysosomal storage disorders. She played a lead role in establishing the association between glucocerebrosidase and parkinsonism. The author of over 200 publications, Dr. Sidransky continues to focus on the complexity encountered in "simple" Mendelian disorders and the development of small molecule chaperone therapy for Gaucher disease and parkinsonism.