When compared to other dementias, the levels of p-tau181 (FC = 2.2–2.6, β = 9.4–11.0, p < 0.001), p-tau217 (FC = 1.5–1.7, β = 2.3–2.9, p < 0.001), p-tau231 (FC = 2.5–2.9, β = 19.4–20.7, p < 0.001), and GFAP (FC = 1.4–1.6, β = 17.8–20.3, p = 0.002–0.03) were significantly higher in the aMCI/AD group than in other dementias. Here, GFAP is linked to Alzheimer disease.