As presented in Table 6, the top 10 most frequently occurring keywords in the literature on EVs in AD are “neurodegenerative diseases” (110), “exosomes” (162), “blood biomarker” (88), “amyloid beta” (67), “tau protein” (55), “Parkinson's disease” (37), “microRNA” (36), “microglia” (34), “neuroinflammation” (26), and “mesenchymal stem cell” (24). The gene discussed is MAPT; the disease is Parkinson disease.