Finally, we analyzed data from age- and gender-matched samples available in the Gene Expression Omnibus: GSE49036 (Dijkstra et al., 2015) to examine NME1 and STRAP expression, as well as co-expression patterns in the SN, of patients with PD at Braak stage 5/6 (n = 8), and of control subjects (n = 8) (Figure 8A). Here, STRAP is linked to Parkinson disease.