Other genes related to familial or Parkinson’s disease, parkinsonism, and Alzheimer’s disease, including SNCA, PRKN, UCHL1, PINK1, DJ-1, LRRK2, ATP13A2, GIGYF2, HTRA2, PLA2G6, FBXO7, VPS35, EIF4G1, DNAJC6, SYNJ1, DNAJC13, CHCHD2, GCH1, NR4A2, VPS13C, RAB7L1, BST1, C19orf12, RAB39B, PSEN1, GRN, APP and APOE, were screened by the targeted gene panel sequence with an Ion Torrent System (Thermo Fisher Scientific, Waltham, MA, US). This evidence concerns the gene SYNJ1 and Parkinson disease.