Cyp46 expression in neurons, microglia, and astrocytes 3 days following cortical injury. Cyp46 levels in MAP-2-positive neurons (row A), Ox42-positive microglia (row B), or GFAP-positive astrocytes (row C) in contralateral cortex (left column) and at the injury site (right column); Cyp46 (Alexa 488, green), MAP-2 (row A), Ox42 (row B), and GFAP (row C) (Alexa 546, red), 63×. Scale bar = 50 μm. While Cyp46 expression occurred in neurons in both contralateral cortex and at the site of injury, there was minimal microglial expression of Cyp46 in contralateral cortex, but clear colocalization of expression at the site of injury (arrow). Cyp46 expression was not present in contralateral cortex astrocytes. At the site of injury, some astrocytes showed Cyp46-positive staining, but most did not.