Fig. 5.

Serine racemase protein levels in the post-mortem dorsolateral prefrontal cortex and hippocampus of patients with schizophrenia. The expression of serine racemase (SRR) was assessed by western blotting in the a dorsolateral prefrontal cortex and b hippocampus of schizophrenia-affected patients (SCZ) and control (Ctrl) individuals (n = 20 per brain region and diagnosis). The variations of SRR protein levels in patients are expressed as percentage (%) of the control group (healthy subjects). α-Tubulin protein was used to normalize for variations in loading and transfer. Representative blots comparing the two diagnostic groups are shown above the graphs. Dots represent the single subjects’ values while bars illustrate the means ± SEM