Nostoc sphaeroides Kütz Polysaccharide Improved Constipation and Promoted Intestinal Motility in Rats

Figure 3

Alterations in the histological structure in lop-induced constipated rat after NSKP treatment. H&E-stained sections of rat colons from the control group, model group, 0.2 g/kg group, 0.4 g/kg group, and 0.8 g/kg group were observed at two different magnifications (40×, 100×, and 200×) using a light microscope. The blue double arrow indicates the thickness of the muscle layer. The red double arrow indicates the thickness of the mucosal layer, yellow double arrow indicates the length of intestinal glands. black arrows indicate goblet cells.