Interestingly, the network of the six deregulated circRNAs in PD patients includes RNA-binding proteins involved in the neurodegeneration-associated diseases like Fused in Sarcoma (FUS), TAR DNA binding protein (TDP43), FMR1, and Ataxin 2 (ATXN2) (Ravanidis et al., 2021). Here, ATXN2 is linked to Parkinson disease.