A finger-prick blood test can accurately identify p-tau217, a key biomarker of Alzheimer’s disease, without the need for special storage or temperature control measures. Researchers found a good correlation between p-tau217 levels obtained from standard venous blood sampling and from a single finger prick. This method could overcome the limitations of traditional blood collection methods, making it less invasive and more accessible for early diagnosis and treatment initiation. The study also highlights the potential for using finger-prick blood collection to identify other AD biomarkers. While the technology is promising, further validation is needed before it can be used clinically. The Alzheimer’s Association is currently conducting a systematic review on blood-based biomarker tests for Alzheimer’s disease.
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