We found no significant difference in the gene expression of IFN-γ, IL-17, and IL-10 and the T-bet and RORC transcription factors in the groups of patients with chronic active gastritis, chronic inactive gastritis, no gastritis, or the control group; the same was noted when we compared to the group of H. pylori-positive or H. pylori -negative patients. Here, IL17A is linked to gastritis.