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  • Title: Review article: influence of Helicobacter pylori on gastro-oesophageal reflux disease in Japan.
    Author: Haruma K.
    Journal: Aliment Pharmacol Ther; 2004 Dec; 20 Suppl 8():40-4. PubMed ID: 15575872.
    Abstract:
    There is circumstantial evidence that infection with Helicobacter pylori is relatively protective for the occurrence of gastro-oesophageal reflux disease (GERD). It has been suggested that the Japanese population are protected against reflux oesophagitis by their high prevalence of H. pylori associated gastritis. Such gastritis, when becoming chronic, can lead to gastric atrophy, thereby reducing the likelihood of GERD. If this hypothesis is correct, the effects of H. pylori induced gastritis may be an important factor determining the earlier lower prevalence of oesophagitis in Japan, where this infection is especially common. In support of this idea a reduced prevalence of H. pylori infection in Japan, as is now being observed in young Japanese adults, may be, at least in part, responsible for the upsurge in the number of cases of reflux disease in Japan. Concomitantly, H. pylori eradication therapy in patients with gastritis or peptic ulcer disease, which is associated with an increase in gastric acid secretion, may also be at least partly responsible for the increased prevalence of reflux oesophagitis in the Japanese population.
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