Compared with the control group, T-tau, TNF-α, and IL-1β levels in CSF were lower (P < 0.01) in treatment groups, as shown in Figures 5(a)–5(c), indicating that Cistanches Herba could reduce T-tau levels and inhibit inflammatory factor such as TNF-α and IL-1β secretions in AD pathologic process. Here, TNF is linked to Alzheimer disease.