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TL;DR: A 2026 medRxiv preprint found that plasma p-tau217 AI models still separated amyloid-positive from amyloid-negative people across ADNI and A4, but calibration drift made the same probabilities less dependable for clinical decisions. Key Findings Calibra…
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TL;DR: A 2026 systematic review and meta-analysis in Molecular Neurobiology found that plasma phosphorylated tau 217 (p-tau217), a blood marker of Alzheimer-linked tau pathology, identified biomarker-defined Alzheimer’s disease with pooled sensitivity of 85.4%…
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Blood Test Predicts Alzheimer’s 3-4 Years Early TL;DR: A blood test measuring phosphorylated tau-217 can predict when cognitively normal people will develop Alzheimer’s symptoms with a 3.0-3.7 year margin of error, potentially transforming how researchers iden…
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