GFAP and Stroke: Comparison of reactive astrocyte numbers in peri‐infarct brain regions between CPAG‐1 or vehicle‐treated mice 3 days after MCAO by GFAP immunostaining revealed increased numbers of GFAP‐stained cells in peri‐infarct cerebral cortex and striatum brain regions 3 days after MCAO when compared with sham controls, indicating robust astrocytosis in post‐stroke brains (Figure 6F‐H).