title: Immunocytochemical quantitation of inflammatory cells associated with Helicobacter pylori infection.
abstract: Inflammatory cells in Helicobacter pylori-associated gastritis (HAG) were quantified. The results were compared with the gastric biopsy samples from patients with non-Helicobacter pylori gastritis (non-HAG). In order to detect immunocytochemically sensitive antigens, the biopsy samples were acetone-fixed at -20 degrees C and processed into glycol methacrylate at 4 degrees C. Parallel routine biopsy samples were formalin-fixed and paraffin-embedded. A larger, more selective retrospective study was also established examining routinely processed gastric biopsy samples. The results of both studies were expressed as numbers of individual cell types/mm2 of gastric mucosa, and showed that neutrophil granulocytes were significantly increased in HAG whereas T-lymphocytes were not. Heli. pylori colonisation was associated with a significant increase of CD8-positive lymphocytes in the epithelium of the crypts.
authors.affiliation: Department of Histopathology, Royal Bournemouth Hospital, England, UK.
authors.forename: C J
authors.initials: CJ
authors.lastname: Hood
authors.forename: M
authors.initials: M
authors.lastname: Lesna
mesh_terms: D016827:CD8 Antigens / Q000032:analysis; D005753:Gastric Mucosa / Q000276:immunology; D005756:Gastritis / Q000276:immunology* / Q000382:microbiology*; D016481:Helicobacter Infections / Q000276:immunology*; D016480:Helicobacter pylori; D006801:Humans; D012189:Retrospective Studies; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D016827:CD8 Antigens