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S. Servaes

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Open access Sep 2026

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...

B. Bellaver, G. Povala, P. C. L. Ferreira et al. · 0 citations
Open access Aug 2026

Differential associations of tau extent and load with brain metabolic and cognitive dysfunction in Alzheimer's disease

Summary Background Reduced [18F]Fluorodeoxyglucose ([18F]FDG)-PET uptake is a core imaging feature of Alzheimer's disease (AD). While tau load correlates with this metabolic signature, it remains unclear whether the spatial extent of tauopathy (SEOT) more accurately explains brain glucose hypometabolic patterns. Here,...

Arthur C. Macedo, Lydia Trudel, S. A. Hosseini et al. · 1 citation

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