In contrast to the SNpc, western blot analysis of RORA protein expression in the CgCx showed no significant difference between male and female controls and no significant effect of PD in either sex compared to their respective controls (male control: 0.9135 ± 0.236, female control: 0.697 ± 0.156, male PD: 0.552 ± 0.085, female PD: 0.591 ± 0.129) (Fig. 1D, F). Here, RORA is linked to Parkinson disease.