Figure 4.
H. pylori infection inhibits AHR or AHRR expression in the stomach. (A-F) AHR, AHRR, and H. pylori infection status were detected by IHC in a mouse model. In the H. pylori-negative control group (A), AHR (C) or AHRR (E) was expressed. In the H. pylori-infected group (B), neither AHR (D) nor AHRR (F) was detected. Original magnification ×100.