Dr. Heather Gray-Edwards is assistant professor of Radiology at UMass Chan and a member of the Horae Gene Therapy Center. A large part of her research effort has been devoted to evaluation of therapeutic interventions in testing novel AAV vectors and delivery routes, using both biochemical/molecular biology techniques as well as in vivo evaluation (neuro exams, MRI/MRS, electrodiagnostics) of GM1 and GM2 gangliosidosis cats as well as sheep with Tay-Sachs disease.