- New research suggests a simple blood test could identify signs of Alzheimer's disease decades before symptoms manifest.
- A study in The Lancet found that high levels of amyloid and p-tau217 biomarkers in midlife were linked to poorer cognitive performance over five years.
- These findings indicate that Alzheimer's neuropathology can be present in midlife, supporting the concept that the disease begins long before clinical symptoms emerge.
- A separate study proposed a novel brain scanning technique, MK6240, which proved more effective at detecting tau protein tangles earlier than existing methods.
- Experts believe earlier detection through blood tests could revolutionise diagnosis, facilitate participation in clinical trials, and improve access to disease-modifying treatments, with a goal to make them available on the NHS by 2029.
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