Interestingly, we found that the expression of PYCRL, LOC100133130, MELK, LINC01101, and DLG3-AS1 was downregulated, and the expression of RPL3L, PLEK2, and CD99P1 was upregulated in PD patients compared with the healthy samples (Figure 6A). Here, CD99P1 is linked to Parkinson disease.