Quantitative analysis of CD4+ T-cells and macrophages in the colonic lamina propria of animals with untreated colitis, animals receiving therapeutic or prophylactic thalidomide, placebo-treated, and normal controls, respectively (n = 10 in each group). Horizontal bars represent medians, boxes represent the 25th and 75th percentiles, and vertical bars represent ranges. Significant values are presented. Differences were analysed using one-way ANOVA with the Dunnett’s test for multiple comparisons. Significant differences are presented.