Mean COX-1 (A) COX-2 (C) and synaptophysin (G) protein levels (with representative immunoblots) in frontal cortex from control (n = 10) and SZ (n = 10) subjects. Bar graphs are ratios of optical densities of COX-1, COX-2 and synaptophysin to β-actin, expressed as percent of control. Mean protein levels of BDNF (E) in frontal cortex from control (n = 10) and SZ (n = 10) subjects and measured using ELISA. ** p < 0.01, *** p < 0.001. COX-1 (B), COX-2 (D), BDNF (F) and synaptophysin (H) mRNA levels in postmortem frontal cortex from control (n = 10) and SZ (n = 10) subjects, measured using quantitative RT-PCR. Data are levels of COX-1, COX-2, BDNF and synaptophysin in SZ normalized to the endogenous control (β-globulin) and relative to the control (calibrator), using the ΔΔCT method. Mean ± SEM.