Duodenogastric reflux in rat gastric carcinoma

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  • R C Mason
    Department of Surgery, United Medical and Dental Schools, Guy's and St. Thomas', Guy's Hospital, St. Thomas' Street, London SE1, UK

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<jats:title>Abstract</jats:title> <jats:p>This study investigated the role of long-term reflux of bile and/or pancreaticoduodenal secretions in the genesis of gastric carcinoma in the rat. Adenocarcinoma, dysplasia and adenocystic proliferation were found only in those animals with reflux of pancreaticoduodenal secretions alone or in combination with bile. No such changes were found in control animals with no reflux or animals with bile reflux alone. The differences in incidence of adenocarcinoma were significant. The presence of adenocarcinoma was not related to the pH of the intragastric contents or to the bacterial flora. This suggests that duodenogastric reflux is implicated in gastric carcinogenesis in the rat and that pancreaticoduodenal secretions rather than bile are responsible.</jats:p>

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