Blood test identifies key Alzheimer’s marker


Measures of amyloid beta in the blood have the potential to help identify people with altered levels of amyloid in their brains or cerebrospinal fluid, new research shows. Currently, the only way to detect amyloid beta in the brain is via PET scanning, which is expensive and not widely available, or a spinal tap, which is invasive and requires a specialized medical procedure. 📍

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