Fig. 8From: Parkinson’s disease patients have a complex phenotypic and functional Th1 bias: cross-sectional studies of CD4+ Th1/Th2/T17 and Treg in drug-naïve and drug-treated patientsTeff production of IFN-γ and TNF-α and inhibition by Treg in HS and PD patients. Teff were stimulated with PHA alone (white columns) or in the presence of Treg 1:1 (hatched columns). Data are means ± SD of n = 6–10 subjects. *P < 0.05 and **P < 0.01 vs Teff alone; #P < 0.01 vs HSBack to article page