Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 27, Issue 37, Pages 6224-6230Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v27.i37.6224
Keywords
Helicobacter pylori; Gut microbiota; Atrophic gastritis; Eradication; Proton pump inhibitor
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Several studies have shown the association between Helicobacter pylori infection and gut microbiota. Eradication of H. pylori can lead to changes in gut microbiota that may take a long time to revert to the original state. The modification of gastric acidity by long-term H. pylori infection can alter gut microbiota.
A number of studies have revealed the association between Helicobacter pylori (H. pylori) infection and the gut microbiota. More than half of the investigations on the impact of H. pylori on the gut microbiota have been the sub-analyses of the influence of eradication therapy. It was observed that H. pylori eradication altered gut microbiota within a short period after eradication, and majority of the alterations took a long period of time to reverse back to the original. Changes in the gut microbiota within a short period after eradication may be attributed to antibiotics and proton pump inhibitors. Modification of gastric acidity in the stomach caused by a long-term H. pylori infection alters the gut microbiota. Analysis of the gut microbiota should be conducted in a large population, adjusting for considerable biases associated with the composition of the gut microbiota, such as age, sex, body mass index, diet and the virulence of H. pylori.
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