Clinical Guidelines

Blood Test Forecasts Alzheimer's Onset

Plasma p-tau217 “clocks” estimate timing of symptoms years before clinical diagnosis

  • By

  • March 9, 2026

  • 2 min

Share

  • 1

    Phosphorylated tau217 can predict Alzheimer's onset.

  • 2

    Study published in Nature Medicine.

  • 3

    Developed statistical models from p-tau217 blood levels.

  • 4

    Plasma-based model enhances accessibility over PET scans.

  • 5

    P-tau217 increases during preclinical phase.

  • 6

    Models show feasibility and accuracy across populations.

  • 7

    Aim to inform patients on symptom onset timing.

Original Source(s)

Blood Test Forecasts Alzheimer's Onset

Plasma p-tau217 “clocks” estimate timing of symptoms years before clinical diagnosis

  • March 9, 2026

  • 2 min

Related Content

Retinal Clues to Alzheimer’s Pathology

Study detected Chlamydia pneumoniae and inflammasome-related proteins in retinal specimens

  • March 5, 2026

  • 2 min
Cenobamate Shows Stronger Real-World Seizure Control

Large retrospective analysis highlights differences in seizure control, retention, and adverse effects among newer agents

GLP-1 RAs in Chronic Migraine

Investigators evaluate health care utilization and treatment patterns vs topiramate in an active-comparator study.