Fig. 1
From: The role of non-Helicobacter pylori bacteria in the pathogenesis of gastroduodenal diseases
Association of Helicobacter pylori abundance with the different stages of gastric conditions. The presence of H. pylori was dominant in the superficial gastritis condition; thus, this domination reduced microbial diversity. In atrophic gastritis and intestinal metaplasia, the relative abundance of H. pylori began to decrease with the introduction of other bacteria, including the incremental of Prevotella sp. and Neisseria sp. In the gastric cancer condition, H. pylori started to deteriorate with a significantly increased amount other bacteria, including oral cavity microbiota, intestinal microbiota, and lactic acid bacteria