Objective: To investigate the role of Th17 cells and related cytokines in Helicobacter pylori(H. pylori) infection. Methods: To establish a mouse model of H. pylori infectious gastritis. Meanwhile, a treatment group and control group were set up. The histological changes in the gastric mucosa were observed and scored under light microscopy; The expression of IL-17 and IL-23 mRNAs as well as protein in gastric tissue was detected by RT-PCR and ELISA, respectively; Th17 cells in mice splenocyte were evaluated using the flow cytometry (FCM) method. Results: We found significantly higher levels of...