Findings support the Access p-Tau217 (RUO) assay as a robust, high-throughput assay for plasma biomarker-based discrimination of PET-defined amyloid pathology in AD applications.
Plasma p-tau217 showed high diagnostic performance for identifying amyloid and tau pathology and generally outperformed other phosphorylated tau isoforms, but it should not be interpreted as a stand-alone test.
Oliwia Lenkiewicz, Julia Lenkiewicz, Z. Chmielewska et al.· International Journal of Inn...· 0 citations
The p-tau217/Aβ42 ratio approximately doubled the diagnostic odds ratio compared with p-tau217 alone and its application in clinical practice is supported by the fact that the p-tau217/Aβ42 ratio performed much better than p-tau217 alone.
BACKGROUND
Alzheimer's disease (AD) poses a growing global health challenge, highlighting the urgent need for reliable and minimally invasive diagnostic tools. This study aimed to develop and comprehensively validate an automated chemiluminescence immunoassay (CLIA) for the simultaneous quantification of six core plasm...
Xi-Meng Chen, Wen-Can Jiang, Li-Juan Wang et al.· Clinica chimica acta; intern...· 0 citations
Plasma p-tau217 is established as a first-choice biomarker for the early detection of AD pathology in specialized clinical settings, displaying excellent diagnostic accuracy and minimal site-related variability.
A. Sánchez-Soblechero, A. Villarejo, M. Carreras et al.· Journal of Alzheimer's Disea...· 0 citations
Blood-based biomarkers could broaden access to Alzheimer’s disease diagnostics, but their ability to approximate tau PET, and to address gray-zone results, remains uncertain. We evaluated plasma p-tau217 against tau PET using a harmonized ADNI baseline cohort and an independently derived temporal meta-ROI tau-PET thres...