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. 2018 Apr 14;15:108. doi: 10.1186/s12974-018-1150-4

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — CSF PDGF levels and markers of neurodegeneration and axonal damage. The figure shows the correlations between CSF PDGF levels and the levels of amyloid-β 1–42 (a), tau protein (b), and NFL protein (c). To obtain a better graphical representation, all variables are depicted on logarithmic scale. Spearman rho correlations were calculated on the variables’ original scale. No significant correlation was found between CSF PDGF concentrations and the levels of markers of neurodegeneration and axonal damage. The p values showed were not adjusted by the Benjamini–Hochberg FDR controlling procedure