This study evaluated the diagnostic performance of plasma biomarkers for Alzheimer's disease (AD) using an automated platform. In a cohort of 74 consecutive patients, plasma p-Tau181 levels were significantly higher in AD compared to non-AD groups and showed correlation with cerebrospinal fluid biomarkers. Plasma p-Tau181 demonstrated high diagnostic accuracy for AD, with an area under the curve of 0.854. The findings suggest that plasma biomarkers, particularly p-Tau181, could improve the accessibility and efficiency of AD diagnostics in clinical settings, offering a less invasive and cost-effective alternative to traditional methods.
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