Table 4.

Levels of human CD4 T helper cells in PD patients and healthy controls

CD4 cell subset		Control¢	PD¢	P value
CD4+		17.27 ± 7.96	13.76 ± 7.05	0.003**
Th1	CD4+Tbet+IFN-γ+	1.98 ± 2.32	1.63 ± 1.30	0.733
	CD4+Tbet+TNF−α+	3.27 ± 2.94	1.83 ± 1.62	0.165
Th2	CD4+Gata-3+IL-13+	3.49 ± 5.32	4.94 ± 7 .21	0.537
	CD4+Gata-3+IL-4+	2.43 ± 3.71	2.45 ± 2.93	0.455
Th17	CD4+Ror-γ+IL-17α+	1.47 ± 2.16	0.98 ± 0.78	0.412

^¢Values are expressed as mean ± SD

*P < 0.05 is consider as significant

**P < 0.005 is consider as significant

CD4+ cells were determined as described in the “Material and methods” section for T helper cells