Dr. Denis Vivien, PhD, is a Professor of Cell Biology at Caen-Normandy University, a University Hospital Practitioner (PUPH) at Caen Hospital, Head of the Center for Biological Resources (CRB-InnovaBIO), Director of INSERM Physiopathology and Imaging of Neurological Disorders, and Scientific Director of Blood and Brain @ Caen-Normandie Institute; his research is focused on tissue plasminogen activator (tPA) and neurovascular disease.