Fig. 2
From: Is plasma amyloid-β 1–42/1–40 a better biomarker for Alzheimer’s disease than AβX–42/X–40?
Distribution of the AβX–42/X–40 ratio in cerebrospinal fluid. The histogram shows the distribution of the AβX–42/X–40 ratios measured in cerebrospinal fluid (CSF) using the SULFO-TAG-6E10 detection antibody. Two normal distributions were fitted with the R package “mix-tools” (version 1.2.0). The vertical dashed line shows the intersection of the two curves at a CSF AβX–42/X–40 ratio of 0.058 (threshold). Aβ, amyloid-β