: Effect of lansoprazole treatment on
histology of gastric body mucosa (H&E staining) in H pylori infected
patients. Few leucocytes are present within the lamina propria (grade 1 inflammation, grade 0 activity) in one patient before treatment (A);
after 64 weeks of treatment, intensified inflammation (grade 2 inflammation, grade 1 activity) is evident (B). In another patient,
neutrophils are absent before treatment (C); after 48 weeks of
treatment, numerous neutrophils appear in the isthmus region and within
the epithelium (D). In a third patient, moderate (grade 2) inflammation
but no glandular atrophy is present before treatment (E); after 65 weeks of treatment, mild to moderate loss of glands (grade 1 atrophy)
is evident together with persistent inflammation (F). Original
magnifications: A and B, ×250; C and D, ×400; E and F, ×160.