One thousand biopsy specimens obtained from 10 sites in the stomachs of 50 patients were examined for the presence of active chronic gastritis and Campylobacter pylori. All 32 patients with active chronic gastritis at 234 out of 320 sites were positive for C pylori: 227 showed colonisation with C pylori by the Warthin-Starry stain; and 222 were positive by culture. C pylori was not found in 18 ...

BACKGROUND Helicobacter pylori, the main cause of chronic gastritis, is a class I gastric carcinogen. Chronic gastritis progresses to cancer through atrophy, metaplasia, and dysplasia. Precancerous phenotypic expression is generally associated with acquired genomic instability. AIM To evaluate the effect of H pylori infection and its eradication on gastric histology, cell proliferation, DNA s...

The aim of this study was to observe the histological features of chronic gastritis and associated effects due to Helicobacter pylori infection in 176 randomly selected antral biopsy specimens of chronic gastritis cases. The specimens were reviewed for the presence or absence of H.pylori. The activity (neutrophilic infiltration) of gastritis and the presence or absence of mucosa-associated lymp...

background and objective: helicobacter pylori has several strains with different degrees of virulence. the aim of this study was to detect two major important virulence factors, caga/vaca genotypes, and to determine correlations among different caga/vaca genotypes and histological features of chronic gastritis in iranian patients. methods: in this cross- sectional study, gastric biopsy was take...

local inflammatory processes in the gastric mucosa are followed by extensive immune cell infiltration, resulting in chronic active gastritis characterized by a marked infiltration of t(h)1 cytokine-producing cd4+ and cd8+t-cells objective. to investigate the correlation between cd4+/cd8+ t-cells in gastric mucosa with endoscopic appearance in chronic gastritis with or without h.pylori infection...

BACKGROUND Gastric acid is important in the pathogenesis of reflux oesophagitis. Acid production by the gastric corpus is reduced in corpus gastritis. AIMS To determine whether corpus gastritis protects against reflux oesophagitis. METHODS Patients presenting for elective oesophagogastroduodenoscopy were studied. Two biopsy specimens were taken from the antrum, corpus, and cardia and staine...

Chronic atrophic gastritis, chronic duodenal and gastric ulcers create conditions for the formation of precancerous changes in mucosa form dysplasia. The biopsy material from patients with - 75 was studied. development severe dysplasia epithelium observed mainly more forms gastritis. High proliferative activity confirmed by expression marker Ki-67 a label index (MI)>30,0%. Between degree muc...