Blood test may be able to predict Alzheimer's
New research published in the journal Alzheimer’s & Dementia suggests that a simple blood test could be able to predict dementia. That would allow reseachers to get people who will develop Alzheimer's into clinical trials for treatment at an earlier stage of the condition.
One of the challenges of treating Alzheimer's is that people don't start showing symptoms until a decade or so after the disease began developing in their brains.
For the study, researchers looked for differences in the blood of 452 healthy people, 220 with mild cognitive impairment and 476 with Alzheimer's disease. From this group, they were able to determine, with 87 percent accuracy, which patients with mild cognitive impairment would develop Alzheimer's disease within the next year.
The scientists caution that it probably will take several years before such a blood test would be available to doctors. They also point out that people who learn that they're very likely to develop Alzheimer's could suffer undue stress and anxiety.