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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: Parkinsonism Relat Disord. 2016 Jul 20;31:79–86. doi: 10.1016/j.parkreldis.2016.07.009

Fig. 4. Mean (±SEM) CSF Cys-DA as a function of DOPAC (A) and Cys-DA/DOPAC ratios as functions of putamen/occipital cortex (PUT/OCC) ratios (B) and of washout fractions of putamen 18F-DOPA-derived radioactivity (C).

Fig. 4

Grouped data are shown for patients with MSA-P (blue), PD (red), PAF (green), and controls (gray). In the parkinsonian synucleinopathies elevated CSF Cys-DA/DOPAC ratios are associated with decreased PUT/OCC ratios and elevated 18F-DOPA washout fractions, in contrast with normal values in the non-parkinsonian synucleinopathy PAF. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)