Figure 3
From: Low plasma serotonin linked to higher nigral iron in Parkinson’s disease
Within PD patients, plasma serotonin’s association with QSM values in the SNc compared to other regions of interest. Loess curves are fitted to the data. Unadjusted Pearson’s correlation coefficients and p-values are indicated, uncorrected for multiple comparisons (N = 62). Scales on y-axis differ by region based on regional distributions. The dashed line marks the lowest tertile of patients in terms of serotonin concentrations. Figure was produced using the ggplot2 package80 in R (version 3.5.3)81.
