Google+ Facebook Twitter Twitter

Blood test for Alzheimer's

A blood test could spot Alzheimer’s disease at the earliest stage and years before symptoms appear, new studies indicate.

The test looks for tiny amounts of a protein (p-tau217) that is elevated in people with the illness.

Investigators found measuring this could predict Alzheimer’s dementia with 96% accuracy.

Alzheimer’s is currently diagnosed using memory tests and brain scans when symptoms have appeared.

The idea of a dementia blood test is not new, but two new studies give the clearest indication yet that a protein associated with Alzheimer’s disease could be used to diagnose people at a much earlier stage.

Dr Rosa Sancho, Head of Research at Alzheimer’s Research UK, said previous clinical trials had failed as patients enrolled in them were too far advanced in their illness, and by that time it was “too late”.

Picture Credit | iStock


Related Articles

British Journal of Biomedical Science: Issue 3 2020 - a synopsis

Deputy Editor Guy Orchard provides a brief glimpse of the articles on offer in the third issue of the year.

The organisation that delivers

After years of frustration, people are finally starting to understand the value of biomedical scientists.

Molecule to remodel microbiome

Scientists at Scripps Research claim they have developed molecules that can remodel the bacterial population of intestines to a healthier state.

Detecting motor neurone disease

Scientists have identified a potential pattern within blood that signals the presence of motor neurone disease.