TH and Wilson disease: In addition, we observed no difference in OD of TH immunostaining in the NAc at P25 and P45 between the two groups (OD ratio values at P25: 1.314 ± 0.022 in CD vs 1.351 ± 0.026 in WD, p = 0.2681; OD ratio values at P45: 1.589 ± 0.033 in CD vs 1.651 ± 0.027 in WD, p = 0.1542).