Research Article

Protein Hydrolyzates from Changbai Mountain Walnut (Juglans mandshurica Maxim.) Boost Mouse Immune System and Exhibit Immunoregulatory Activities

Figure 3

Proliferative analysis of splenocytes from mice treated with the walnut proteins at different doses. Approximately 5 × 105 splenocytes were isolated from the protein-treated mice. A distilled water-treated group was used as the negative control, and thymopeptide was used as the positive control. The stimulation index represents the proliferative capacity of splenocytes from each group after treatment with the walnut proteins. Values are expressed as mean ± SD. Asterisks represent statistically significant differences; and compared with the control group.