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Breakthrough Blood Test Detects Alzheimer's with 83% Accuracy

2/28/2026

Summary

Story summary

The Scripps Research Institute researchers developed a blood test that detects Alzheimer's disease by analyzing protein shapes rather than quantities, enabling detection.
The study, published in Nature Aging, involved 520 participants and used mass spectrometry to profile structures.
The research identifies disease stages and shows gender differences in genetic risks and symptoms.
A deep learning model achieved 83.44% accuracy distinguishing healthy aging, mild cognitive impairment, and Alzheimer's, with noted limitations.

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Story summary

The Scripps Research Institute researchers developed a blood test that detects Alzheimer's disease by analyzing protein shapes rather than quantities, enabling detection.
The study, published in Nature Aging, involved 520 participants and used mass spectrometry to profile structures.
The research identifies disease stages and shows gender differences in genetic risks and symptoms.
A deep learning model achieved 83.44% accuracy distinguishing healthy aging, mild cognitive impairment, and Alzheimer's, with noted limitations.