ARG1 and ischemic stroke: In ischemic stroke models, the STAT6/arginase1 (STAT6/Arg1) pathway is engaged in phagocytic clearance of dead/dying cells by both microglia and infiltrating macrophages, and upregulation of STAT6/Arg1 signaling ameliorates brain infarction and enhances long‐term neurofunctional recovery.6