Blood Test Could Reveal Alzheimer's Risk in Healthy Individuals
WHO:
NY Post - Researchers involved in the study are focused on Alzheimer's disease.
ABC News Health - The study involves healthy older adults.
WHAT:
Fast Company - The study found that symptom-free older adults with very high levels of p-tau217 had a 38% risk of developing cognitive impairment over five years, which increased to 78% by ten years.
Fast Company - The research was published in JAMA and presented at the Alzheimer’s Association International Conference in London.
Fast Company - The Mass General Brigham team analyzed data from 2,684 older adults who were healthy at enrollment and received the p-tau217 blood test at that time and yearly cognitive checkups.
Fast Company - Between the earliest enrollment in 2004 and last year, about 478 participants developed cognitive impairment.
CBS News Health - The blood test may predict if apparently healthy older adults are likely to develop Alzheimer's symptoms in the next five or 10 years.
NY Post - A blood test may detect Alzheimer's risk in healthy individuals.
ABC News Health - The blood test can help identify people at high risk for Alzheimer's disease and forecast if they will develop symptoms.
WHERE:
NY Post - The study is part of large clinical trials, though specific locations are not mentioned.
ABC News Health - The study pertains to healthy older adults, but specific locations are not provided.
WHEN:
NY Post - Future clinical trials are testing drugs that could prevent or delay Alzheimer's disease.
WHY:
NY Post - There is a need for an easy way to identify individuals who should try preventive drugs if they are effective.
HOW:
Fast Company - The p-tau217 test measures a form of tau that correlates with amyloid plaque buildup and provides insight into tau tangles.
ABC News Health - The blood test is designed to diagnose Alzheimer's and predict future symptoms in healthy individuals.
(UPDATED July 15, 2026 16:24 UTC)
A recent study published in JAMA and presented at the Alzheimer’s Association International Conference in London reveals that symptom-free older adults with very high levels of p-tau217 face a 38% risk of developing cognitive impairment over five years, which rises to 78% by ten years. The research, conducted by the Mass General Brigham team, analyzed data from 2,684 healthy older adults who underwent the p-tau217 blood test at enrollment and received yearly cognitive checkups, with about 478 participants developing cognitive impairment from the earliest enrollment in 2004 to last year. The p-tau217 test measures a form of tau that correlates with amyloid plaque buildup, offering valuable insights into tau tangles associated with cognitive decline.
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(UPDATED July 15, 2026 13:28 UTC)
A new blood test has been developed that could help predict whether seemingly healthy older adults are at risk of developing Alzheimer's symptoms within the next five to ten years. This breakthrough was reported by CBS News Health. The test aims to provide valuable insights for early intervention and care planning for those at risk.
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(UPDATED July 15, 2026 12:20 UTC)
Researchers focused on Alzheimer's disease have developed a blood test that may detect the risk of the condition in healthy older adults. This test aims to identify individuals at high risk for Alzheimer's and forecast whether they will develop symptoms, which is crucial as future clinical trials are set to test drugs that could prevent or delay the disease. The need for an easy way to identify those who should consider preventive treatments is driving this important research forward.