Fig. 1

a Body weights of mice before and after intragastric administration with physiological saline, whole ingredients extract (WIE), water extract (WAE) or ultrafine powder (UFP) (twice daily, equalled to 1 g herb/kg/day) for 18 days with cyclophosphamide (Cy, 80 mg/kg/day) injected intraperitoneally from days 12–14. b Thymus index and; c Spleen index for different groups of mice. Data are expressed as mean ± S.D. of six mice. ^##p < 0.01 vs Control. *p < 0.05, **p < 0.01 and ***p < 0.001 vs Cy; ^Δp < 0.05 and ^ΔΔp < 0.01 vs WIE