NeuroDiderot is a research Unit created in January 2019. It comprises 5 teams resulting from the fusion of UMR 1141 (Neuroprotection of the developing brain; 3 teams; P Gressens; Robert Debre Hospital), UMR 1161 (Genetics and pathophysiology of neurovascular disorders; 1 team; E Tournier-Lasserve, Diderot Medical school, Villemin campus) and UMR 1129 (Childhood epilepsies and cerebral plasticity; 1 team; C Chiron; Necker Hospital and NeuroSpin and the SHFJ of the CEA). These 3 UMRs have a deep and long-standing relationship (UMR 1141 has collaborated for many years with UMR 1161 and UMR 1129, and UMR 1161 and UMR 1129 have close, well-established links with each other and different teams of NeuroSpin), and have been focused for more than 2 decades on neurodevelopmental and neurovascular disorders.