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Blood test to detect dementia; Low gene score link to Alzheimer's.


A SIMPLE blood test has been developed that could identify people at risk of dementia years before symptoms develop.

Researchers studied samples from apparently healthy 65-year-olds, who were tested again over five years.

They pinpointed 150 gene markers that are hallmarks of living healthily and for longer.

Greater gene scores were associated with better mental ability, kidney function and longevity over 12 years while low scores were linked to Alzheimer's.

The test measures ageing by assessing "biological age" rather than the years a person has lived.

Lead researcher James Timmons, of King's College London, said: "Our discovery provides the first robust molecular signature of biological age in humans and should be able to transform the way that age is used to make medical decisions."

Alzheimer's Society director of research Dr Doug Brown said: "This research could help in our quest to find new treatments by identifying people who are more likely to develop Alzheimer's so that they can participate in clinical trials."

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Publication:Daily Record (Glasgow, Scotland)
Date:Sep 7, 2015
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