Astrocyte reactivity identifies p-tau217-positive individuals at elevated risk of cognitive decline across the Alzheimer’s disease continuum
Plasma phosphorylated tau at threonine 217 (p-tau217) is a robust marker of Alzheimer’s disease (AD) pathology and progression. However, individuals positive for p-tau217 show substantial clinical heterogeneity, suggesting the influence of modifying biological processes. Here, we investigated whether plasma glial...