Figure 8. Effect of CA on catecholamine concentrations: Dopamine (A), Adrenaline (B), and Noradrenalin (C) in C57BL/6J mice brain. C57BL/6J mice were administrated with CA for 30 days. The control group was administered with distilled water. Each bar represents the mean ± SD. * P < 0.05, ** P < 0.01, *** P < 0.001 as compared to negative control group. NC: negative control (aged water-treated group), PC: positive control (young water-treated group), CA: Cuminaldehyde treated group.