Methylation status of Cat promoter region (I) in the hippocampus (A), amygdala (B) and cerebral cortex (C) Ido1 and Kmo promoter regions (II) in the hippocampus (A,D), amygdala (B,E) and cerebral cortex (C,F) of animals exposed to CMS for two weeks (control, stressed) and in animals exposed to CMS for seven weeks and administered vehicle (1 mL/kg) or escitalopram (10 mg/kg) for five weeks (control/esc, stressed/saline, stressed/esc). Data represents median and maxiumum-minimum values. n = 6. * p < 0.05, *** p < 0.001 stressed/esc group relative to stressed group; & p < 0.05, &&& p < 0.001 stressed/esc group relative to stressed/saline group.