The Courier-Mail

Blood test can flag Alzheimer’s

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A BLOOD test for healthy ageing has been developed that could identify people who are growing old too fast and at risk of dementia.

The genetic test is the first to provide an objective measuremen­t of biological age and can provide an early warning of Alzheimer’s disease and other forms of dementia. Scientists analysed thousands of blood, brain and muscle samples to find 150 markers of gene activity associated with good health at the age of 65.

These were used to produce a score-based rating system for healthy ageing that could be incorporat­ed into a blood test.

When a group of more than 700 healthy 70-year-olds were given the test they were found to have widely ranging healthy ageing scores.

Higher scores were associated with better health while low scores were linked to Alzheimer’s.

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