Table 2.
The effects of PSM on immune organs in normal mice.
| Group | Number of animals | Initial body weight (g) | Final body weight (g) | Weight growth rate (%) | Spleen Index (SI) a | Thymus Index (TI) b |
|---|---|---|---|---|---|---|
| Control | 10 | 22.00 ± 1.79 | 35.50 ± 4.38 | 61.36 | 0.65 ± 0.08 | 0.35 ± 0.13 |
| CVT c 200 mg/kg | 10 | 21.45 ± 1.90 | 34.66 ± 2.65 | 61.59 | 0.77 ± 0.09 * | 0.42 ± 0.11 |
| PSM 100 mg/kg | 10 | 21.60 ± 1.90 | 34.88 ± 5.33 | 61.48 | 0.68 ± 0.10 | 0.36 ± 0.11 |
| PSM 200 mg/kg | 10 | 21.60 ± 1.84 | 34.86 ± 3.44 | 61.39 | 0.76 ± 0.13 * | 0.40 ± 0.12 |
* p < 0.05, when compared with control group; a SI = Spleen weight/Body weight; b TI = Thymus weight/Body weight; c CVT: CVT-E002™ (immunostimulatory polysaccharide-rich extract of the root of North American ginseng) was used as a positive control [20].