Leukocyte infiltration in the cerebral cortex. Reduction of leukocyte infiltration in ischemic cerebral cortex by EA pretreatment in wild-type but not in MCPIP1 knockout mice. (A) Immunostaining of leukocyte in the cortex using anti CD45 antibody. (B) Qualification of CD45 fluorescence intensity. Each plot is an average of four animals each group. (Magnification 600X.) EA, electroacupuncture; MCPIP1, monocyte chemotactic protein-induced protein 1.