Distinct patterns of mucosal apoptosis in H pylori-associated gastric ulcer are associated with altered FasL and perforin cytotoxic pathways

Figure 6 Apoptosis-related proteins in the gastric mucosa stained with immunoperoxidase. Photomicrographs show the antral mucosa stained for FasL in a non-infected control patient (A), at the ulcer margin (B), and after eradication therapy of the same patient (C). Immunostaining for perforin is shown in a patient with H pylori-associated gastritis (D), and in a patient with gastric ulcer before (E), and after eradication therapy (F), respectively. Arrowheads show immunoreactive cells (Original magnification × 400).