ABCC1 protein expression in the human brain. ABCC1 protein abundance was measured using Western blotting and reported as a ratio of β actin band intensity in each lane. Box plot shows median, interquartile range, and 10–90th percentiles. C1–5, control cases; T1–7, TBI patients; +, human ABCC1-overexpressing MDCKII cells (positive control); M, marker. *p<0.05 vs. control cases.