There are specific proteins associated with different types of NDs comprising the infectious scrapie‐associated prion protein (PrPSc) in prion disease, the amyloid‐β (Aβ) and protein tau (p‐Tau) in AD, α‐synuclein (α‐syn) in PD, mutant huntingtin proteins (mHtt) in HD, and superoxide dismutase 1 (SOD1), TDP‐43, FUS/ TLS, and C9ORF72 in ALS.[2, 9, 32, 113, 115]. This evidence concerns the gene MAPT and Parkinson disease.