Fig. 1From: Regulatory impairment in untreated Parkinson’s disease is not restricted to Tregs: other regulatory populations are also involvedDecreased levels of active Tregs, suppressor Tregs, and Tr1 cells in PD patients. Differences between controls (Ctr) and PD patients (PD) are shown. The percentage corresponding to each cell phenotype is shown on the y-axis. *P < 0.05 is considered as significant, **P < 0.005 is considered as significantBack to article page