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Blood test for Alzheimer’s disease is highly accurate, researchers say | Science, Climate & Tech News

The Owner Press by The Owner Press
June 7, 2025
in Business News
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Researchers say a brand new blood take a look at for Alzheimer’s illness has been proven to be extremely correct in detecting folks with early signs.

Scientists appeared for 2 proteins – amyloid beta 42/40 and p-tau217 – and located the take a look at was 95% correct in figuring out sufferers with current cognitive impairment linked to the situation.

The US research concerned 509 sufferers in an outpatient reminiscence clinic in Florida and was published in the medical journal Alzheimer’s and Dementia.

The take a look at, which has already been permitted by the US regulator, was additionally 82% correct for specificity, which implies it may rule out folks with out dementia.

Dr Gregg Day, who led the research, mentioned the take a look at was nearly as good as current, however extra invasive, checks.

He mentioned the subsequent step was to increase the take a look at to a wider vary of sufferers, together with these with early Alzheimer’s who would not have any cognitive signs.

Scientists say the 2 proteins, which they’ve recognized in blood plasma, are related to the buildup of amyloid plaques.

Amyloid protein could be present in our brains, however in Alzheimer’s illness, amyloid sticks collectively and kinds irregular deposits, that are considered poisonous to mind cells.

Dr Richard Oakley, affiliate director for analysis and innovation on the Alzheimer’s Society within the UK, mentioned the outcomes “recommend this take a look at could be very correct”.

“Blood checks can be crucial to speed up analysis and provides extra folks entry to the care, assist and coverings they desperately want quicker than ever earlier than,” he added.

Learn extra:
Dementia risk link to sleep problems
Brain injury costs for ex-footballers
Former player shares dementia fears

Within the UK, the Blood Biomarker Problem is a multi-million-pound analysis programme supported by the Alzheimer’s Society, Alzheimer’s Analysis UK and the Nationwide Institute for Well being and Care Analysis.

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Researchers are  developing a blood test that can help detect signs of dementia. It hopes to revolutionise dementia diagnosis in the UK.

1:09

New take a look at brings ‘hope’ to dementia sufferers

Its purpose is to carry blood checks for dementia analysis to the NHS by 2029.

Dr Julia Dudley, head of analysis at Alzheimer’s Analysis UK, mentioned: “We urgently want to enhance how we diagnose dementia and it is nice to see worldwide analysis working in the direction of this purpose.”

She mentioned the research just like the Blood Biomarker Challenge are a “essential a part of making analysis simpler and quicker, which is able to carry us nearer to a remedy”.

“The research is testing blood checks, together with p-tau217, in hundreds of individuals from websites throughout the UK,” she added.



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