(A) Time course of CD163 immunoreactivity and number of positive cells in the hematoma. Upper scale bar = 50μm, lower scale bar = 10μm. Values are mean ± SD, *p <0.05, #p <0.01 vs. 4-hour. (B) Time course of HO-1 immunoreactivity and protein levels. Upper scale bar = 50 μm, lower scale bar = 10 μm. Values are mean ± SD, *p <0.05, #p <0.01 vs. 4-hour.