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Fig. 1 | Alzheimer's Research & Therapy

Fig. 1

From: Blood-based biomarkers and plasma Aβ assays in the differential diagnosis of Alzheimer’s disease and behavioral-variant frontotemporal dementia

Fig. 1

Scatter plots visualizing the correlations between plasma concentrations of Aβ40 and Aβ42, along with the Aβ42/Aβ40 ratio, across various assays. Each point represents data from a single clinical sample. Concentrations of Aβ40 and Aβ42 were determined using three different assays: Shimadzu, Simoa, and the newly developed Ulm assay. A regression line in purple indicates the overall trend, with lighter purple shading denoting the confidence interval. The analysis employs Spearman’s rank correlation to calculate correlation coefficients, highlighting the relationships among these assays. Marginal density plots along the x (teal) and y axes (red) illustrate the distribution of the data for each variable

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Alzheimer's Research & Therapy

ISSN: 1758-9193