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Scientists develop blood test for Alzheimer’s disease

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the staff of the Ridgewood Blog

Ridgewood NJ, scientists have developed a blood test to diagnose Alzheimer’s disease without the need for brain imaging or a lumbar puncture. The antibody-based blood test could enable faster diagnosis of the disease and faster initiation of therapy. It detects a particular form of protein that is specifically related to Alzheimer’s disease. The test still needs to be validated with a broader range of patients.

Even doctors who were initially skeptical about blood tests for the condition are gaining confidence that products from Quest Diagnostics Inc., Quanterix Corp. and C2N Diagnostics can help distinguish which patients may qualify for treatment with the experimental drug lecanemab, expected to be approved next year. The drug is the first ever to clearly slow the progress of Alzheimer’s, the brain-wasting disease that affects some 6 million Americans.

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