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Blood test could detect Alzheimer's signs 'decades before symptoms appear', study shows

Researchers found higher biomarker levels in 86 participants and linked them to poorer memory and faster decline.

  • A blood test measuring amyloid and p-tau217 proteins can detect Alzheimer's decades before symptoms and is linked to cognitive differences in midlife.
  • High levels of amyloid biomarkers and p-tau217 were found in individuals without dementia and were associated with worse cognitive performance over time.
  • A new PET scan agent called MK6240 detects more tau protein tangles than previous tracers, aiding earlier identification of Alzheimer's changes.
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18 Articles

PerthNowPerthNow
+3 Reposted by 3 other sources
Center

Blood test could detect Alzheimer's 'decades before'

Using blood tests to pinpoint changes in the brain "could be incredibly valuable" for the early detection of Alzheimer's disease, researchers say.

·City of Perth, Australia
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The IndependentThe Independent
+2 Reposted by 2 other sources
Lean Left

How a simple blood test could spot signs of Alzheimer’s ‘decades before symptoms’

A simple blood test may be able to spot signs of Alzheimer’s disease long before someone shows symptoms, a new study has revealed

·London, United Kingdom
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Evening StandardEvening Standard
+3 Reposted by 3 other sources
Center

Blood test could detect signs of Alzheimer’s ‘decades before symptoms’ – study

The findings show that Alzheimer’s may be present in midlife and already linked to cognitive differences, researchers said.

·London, United Kingdom
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Sky News UK broke the news in United Kingdom on Thursday, May 28, 2026.
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