Other key AD-related genes expressed in fetalMG and co-pMG (and bloodMono) included APP, PICALM, and CD33; PD-related genes included PARK15, PINK1, SNCA, and DJ-1; and MND-related genes included C9orf72, TDP43, and SOD1. Note that almost all of these genes were also expressed in pMacpre, pMac, and pMGL. This evidence concerns the gene SNCA and Parkinson disease.