Figure 2. Histology of mouse colon stained with Haematoxylin/Eosin for different times of DSS exposure.

No increase in the amount of infiltrating leukocytes or altered epithelial architecture as sign for inflammation was observed after 12 and 24 h of DSS treatment. Inflammation with infiltrating leukocytes and loss of normal epithelial architecture was obvious after 120 h of DSS administration. Scale bars are 100 µm.