Table 1. The effect of P vulgaris on mice cellular immune function (mean±SD, n = 10).

Group	Dosage (g/kg BW)	Increase in foot pad thickness (mm)	Spleniclymphocyteproliferation
Control group	0.00	0.60±0.07	0.37±0.11
Low-dosage group	0.15	0.63±0.09	0.34±0.12
Medium-dosage group	0.30	0.68±0.14	0.42±0.06
High-dosage group	0.90	0.75±0.11**	0.39±0.09

Note: Compared to the control group,

^**indicates P<0.01.

The tested doses are of the extract of P. vulgaris.