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• W1997920283 abstract "Background : The purpose of the present study was to examine the association between interleukin‐8 (IL‐8) in the gastric body due to Helicobacter pylori infection and histological gastritis, as well as elucidating the effect of acid secretion inhibitors on H. pylori associated body gastritis in duodenal ulcer patients. Methods : Twenty H. pylori ‐negative patients, 20 H. pylori ‐positive patients with chronic gastritis without peptic ulceration, and 20 H. pylori ‐positive duodenal ulcer patients (DU) were studied. Four biopsy samples were taken, each from the greater curvature of the antrum and body of the stomach. Biopsies were histologically investigated by ELISA to determine the density of H. pylori , the degree of neutrophil infiltration and the IL‐8 concentration in the mucosa. Results : In the gastric mucosa of H. pylori ‐negative subjects, no IL‐8 and hardly any neutrophil infiltration were observed. In contrast, enhanced IL‐8 production and increased neutrophil infiltration were present in those infected with H. pylori . In H. pylori ‐positive patients, a significant correlation was observed between the IL‐8 concentration and the degree of neutrophil infiltration, but no correlation was found in the body mucosa of those with DU. Twelve of 20 DU patients demonstrated hardly any neutrophil infiltration, despite the increased mucosal IL‐8 content in the body. The administration of omeprazole in DU patients markedly increased mucosal neutrophil infiltration even though it did not cause any significant change in the H. pylori density and IL‐8 concentration in the body. Although the effect of omeprazole was transient, a significant increase in neutrophil infiltration continued in comparison with the status before omeprazole administration in those subsequently undergoing maintenance treatment with H 2 ‐blockers. Conclusion : In H. pylori ‐positive chronic gastritis, IL‐8 concentration is enhanced in the mucosa of the body, and is associated with increased neutrophil infiltration. However, in DU patients, despite increases in body IL‐8 concentration, neutrophil infiltration is reduced and the gastritis may be localized in the antrum." @default.
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• W1997920283 date "1997-07-01" @default.
• W1997920283 modified "2023-10-13" @default.
• W1997920283 title "Gastric corpus IL‐8 concentration and neutrophil infiltration in duodenal ulcer patients" @default.
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• W1997920283 doi "https://doi.org/10.1046/j.1365-2036.1997.00218.x" @default.
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