718617.fig.004a
(a)
718617.fig.004b
(b)
Figure 4: Arrows denote crypt abscesses (neutrophils) in the lumen of crypts. Kreyberg trichrom stain (acid mucopolysaccharides are stained blue). C57BL/6JOlaHsd male mice are exposed to 3% DSS solution for 5 days followed by drinking water for (a) 7 days and (b) 28 days.