Huntington's disease including the findings by Anita Harding's research group on the effects of the gene's length. Modelling the disease in various types of. Genetic Testing for Huntington's Disease - Its Relevance and Implications Massachusetts General Hospital mapped the Huntington’s Disease gene to a location on. About Huntington's Disease and Related Disorders. A Brief History of Huntington's Disease. Huntington's disease We have not yet discovered the gene's normal function.