Fig. 6From: In vivo long-lasting alterations of central serotonin transporter activity and associated dopamine synthesis after acute repeated administration of methamphetamineThe integrated optical density (IOD) ratio of tyrosine hydroxylase (TH) immunoreactivity in the caudate-putamen (CP), nucleus accumbens (NA), substantia nigra pars compacta (SNPC), and pars reticulata (SNPR) of the control and METH-induced groups. *p < 0.05 and **p < 0.01 compared to the control group; #p < 0.05 and ##p < 0.01 compared to the 5 mg/kg groupBack to article page