Table 2.
Summary of inhibitory effects of other bacterial species on H.pylori
| Bacteria | Impact on H.pylori | References |
|---|---|---|
| Bifidobacterium bifidum | Inhibits H. pylori growth in in-vitro studies | Chenoll et al. (2011) |
| Lactobacillus casei | Decreases growth and colonization of H. pylori in gastric cancer | Sgouras et al. (2004) |
| Lactobacillus spp. | Contradictory results; supplementation can effectively eradicate H. pylori and reduce the chance of gastric cancer development in some studies | Yu et al. (2019); Yang et al. (2021) |
| Lactobacillus plantarum | Pre-treatment prevents an increase in inflammatory cytokines and inflammatory cell infiltration in gastric cancer induced by H. pylori infection | Pan et al. (2016) |
| Achromobacter spp. | Notable decline in H. pylori abundance observed in Portuguese patients with gastric cancer compared to chronic gastritis | Ferreira et al. (2018) |
| Clostridium spp. | Notable decline in H. pylori abundance observed in Portuguese patients with gastric cancer compared to chronic gastritis | Ferreira et al. (2018) |
| Citrobacter spp. | Notable decline in H. pylori abundance observed in Portuguese patients with gastric cancer compared to chronic gastritis | Ferreira et al. (2018) |
| Rhodococcus spp. | Notable decline in H. pylori abundance observed in Portuguese patients with gastric cancer compared to chronic gastritis | Ferreira et al. (2018) |
| Lactobacillus spp. | Notable increase in Lactobacillus abundance observed in Portuguese patients with gastric cancer compared to chronic gastritis | Ferreira et al. (2018) |
| Streptococcus spp. | Altered stomach in gastric cancer patients colonized by multiple Streptococcus species, including S. mitis, S. parasanguinis, and S. bovis | Sheh and Fox (2013); Dicksved et al. (2009) |
| Lactobacillus spp. | Ingestion associated with a decline in gastrointestinal disorders and, in some cases, decreased H. pylori levels, although complete eradication is rare | Canducci et al. (2000) |
| Lactobacillus acidophilus | Involved in the inhibition of H. pylori in gastrointestinal diseases | Lorca et al. (2001) |
| Lactobacillus casei | Lactic acid produced by L. casei strain Shirota inhibits the bacterial urease system, leading to reduced survival ability of H. pylori in low pH conditions without urea | Sgouras et al. (2004) |