EGR1 and schizophrenia: In patients with schizophrenia, decreased egr1 mRNA levels in the dorsolateral prefrontal cortex (dlPFC) was observed, whereas there was an increase in fibroblasts and whole blood samples, the latter of which was associated with delusion states of schizophrenia patients (Yamada et al., 2007; Kurian et al., 2011; Cattane et al., 2015).