Figure 1From: The inflammatory infiltrate in the acute stage of the dextran sulphate sodium induced colitis: B cell response differs depending on the percentage of DSS used to induce itImmunohistochemical staining for macrophages with F4/80 antibody: Macrophages in healthy colonic mucosa (control) and at day 3 of DSS ingestion are localized predominantly in the lamina propria. Positive staining for macrophages in the submucosa was initially found at day 6 and increased at day 8 of DSS ingestion. 2.5% DSS-induced colitis. Findings from inflamed colons of 5%DSS-induced colitis were similar. Original magnification × 20.Back to article page