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Evaluation of occludin expression. Immunofluorescence anti-occludin (red staining) experiments in the colon samples of different treatment groups showed the different epithelial barrier TJ structural integrity. A relevant example for each treatment group is shown: A (UNTR; untreated, hydroalcoholic solution only); B (DSS; DSS 2% plus hydroalcoholic solution); C (DSS + IL-10/anti-IL-1; DSS 2% + interleukin-10 plus anti-IL-1 antibody). Bars: 20 µm.
