Pharmacokinetics of Two Alkaloids after Oral Administration of Rhizoma Coptidis Extract in Normal Rats and Irritable Bowel Syndrome Rats

Figure 6

Photomicrographs of distal colons from the control group (A, ×100; B, ×400) and model group (C, ×100; D, ×400) by hematoxylin and eosin staining.