A successful stroke was confirmed in all groups by ≈ 70% reduction of cerebral blood flow in the lesioned right hemisphere 24h after stroke induction (WT = −72%; WT-Tacr = −76%; Rag2-/- = -69% NSG = −74%, all p > 0.5, Figures 1B, C). The gene discussed is RAG2; the disease is stroke disorder.