09/03/2026
Could a simple blood test help identify Alzheimer’s risk years before memory symptoms begin?
New research presented at the 2026 Alzheimer’s Association International Conference looked at a blood marker called p-tau217, a protein associated with Alzheimer’s-related changes in the brain. Researchers followed nearly 2,700 older adults who had no memory or thinking problems when the study began and found that higher p-tau217 levels were associated with a greater risk of developing cognitive impairment over the following years.
These findings are especially exciting for Alzheimer’s prevention research, where identifying people at increased risk before symptoms appear could one day allow for earlier monitoring and intervention.
🔗 Read more from the Alzheimer’s Association:
A blood test detecting p-tau217, a protein linked to Alzheimer’s, may help predict cognitive impairment in older adults a decade before symptoms appear.