PGRMC2 and brain infarction: The gain‐of‐function ligand of PGRMC2 (CPAG‐1, 45 mg/kg) was intraperitoneally injected into sham/MCAO mice, and brain infarction, blood–brain barrier (BBB) leakage, and sensorimotor functions were evaluated by magnetic resonance imaging, brain water content, Evans blue extravasation, immunofluorescence staining, and neurobehavioral tests.