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- W137602748 abstract "Mast cells are known to be effector cells in various inflammatory reactions, but their role in gastritis is unclear. The present study was undertaken to investigate the extent of mast cell involvement in antral gastritis with and without Helicobacter pylori (H. pylori) infection and thus evaluate the possible role of mast cells in the pathogenesis of H. pylori-associated gastritis. Antral mucosal biopsies were taken from 212 subjects with symptoms suggestive of acid peptic disease. Sections were assessed for inflammation. Modified Giemsa stain was used to detect H. pylori infection and 1% toluidine blue to count mast cells. Mast cell counts were significantly higher in the antral mucosa even in H. pylori-negative gastritis (68.4 +/- 6.7/mm2), as compared to normal non-inflamed mucosa (45.7 +/- 5.8/mm2) (P < 0.05). However, with H. pylori infection, the mucosal mast cell count were markedly increased (123.8 +/- 4.7/mm2) as compared to normal mucosa (P < 0.01). and H. pylori-negative gastritis (P < 0.01) this increase was noticed uniformly in patients with H. pylori-positivity, irrespective of the presence or absence of a peptic ulcer. After cure of H. pylori infection, the mast cell density decreased significantly (44.9 +/- 4.6/mm2) to reach levels that were similar to those in normal mucosa. There was a positive correlation between the antral mucosal mast cell density and polymorphonuclear and mononuclear cell infiltration (rs = 0.61). H. pylori infection, and 0.73 respy. It was concluded that could be responsible for increasing the mast cell density in the gastric antrum. Probably by inducing castain mucosal cytokine." @default.
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- W137602748 date "2003-10-01" @default.
- W137602748 modified "2023-10-12" @default.
- W137602748 title "Mast cells in Helicobacter pylori associated antral gastritis." @default.
- W137602748 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15025354" @default.
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