TP73 and Parkinson disease: Hypomethylation of TP73 and C21ORF56 was also confirmed by pyrosequencing (Figure 2B,C); however, for CDH13, only the high methylation level in PD was replicated, whereas the healthy controls seemingly displayed similar levels of methylation at the investigated CpG (PD 93.1 ± 7.75; control 93.4 ± 7.31; p = 0.95).