Hyperphosphorylated tau aggregates and beta‐amyloid peptide fibrils are well known to be the hallmarks of AD (Uzuegbunam et al., 2020; Wilson et al., 2020), while idiopathic PD is not characterized by increased tau or beta‐amyloid load (Winer et al., 2018). This evidence concerns the gene MAPT and Parkinson disease.