New Blood Test Shows Promise for Early Alzheimer's Detection
A study suggests that a blood test may identify Alzheimer's disease signs before symptoms arise. Measurements of amyloid and tau proteins in blood could indicate cognitive decline. Findings highlight potential for early detection and risk factor management to delay onset, but caution against use in large-scale screenings.
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A recent study suggests a blood test might detect early signs of Alzheimer's decades before symptoms manifest. The test focuses on biomarkers, such as amyloid-beta and tau proteins, which escalate as cognitive abilities wane. Published in The Lancet, this research offers a breakthrough in preemptive diagnostics.
Researchers from the University of California San Francisco found that elevated levels of these proteins in the blood correlate with diminished cognitive performance. The study included 1,350 adults aged around 61, with 6% showing biomarker patterns consistent with Alzheimer's. Despite these promising results, experts advise against using these blood tests for widescale screenings due to potential false positives.
By identifying Alzheimer's early, interventions could reduce risk factors like smoking and inactivity, potentially delaying symptom onset. The findings underscore the need for supplementary diagnostics to ensure accuracy and efficacy.
(With inputs from agencies.)
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