association of peptic ulcer with increased expression of lewis antigens, but not vacuolating cytotoxin activity or baba2 gene status, in helicobacter pylori strains from china.controversies exist regarding the virulence factors, such as vaca, baba2 and lewis blood group antigens, of western and asian strains of helicobacter pylori. the aim of the present study was to determine the significance of these potential virulence factors in the chinese population.200616412040
[study on the epidemiology of hp infection among 464 school staff in henan province].an epidemiological study of helicobacter pylori (hp) infection among 464 school staff was carried out by detecting sera urease antibody. the result showed that hp infection rate was 42.03% and increased with age. it was higher among persons with upper gastrointestinal symptoms and with gastric disease than without. the rate of hp infection tended to relate to factors as educational level, income, alcohol consumption but did not reach significant level statistically. hp infection did not seem to ...19968758405
prevalence of helicobacter pylori infection and gastritis among young adults in investigate the prevalence of gastritis and h. pylori infection among young chinese in henan province, a high incidence area for oesophageal cancer in china, the gastric mucosa was examined in 194 asymptomatic subjects, aged 15-26 years, in the course of an epidemiological study of precursor lesions of oesophageal cancer. histopathological grading of gastritis and determination of h. pylori infection were performed on haematoxylineosin and warthin-starry stained section. an enzyme-linked immu ...19957728100
[helicobacter pylori infection and gastric cardia cancer: a nested case-control study].to explore the association of helicobacter pylori infection with gastric cardia cancer.200819024516
incidence and mortality of gastric cancer in china.gastric cancer is one of the most frequent cancers in the world; almost two-thirds of gastric cancer cases and deaths occur in less developed regions. in china, based on two national mortality surveys conducted in 1970s and 1990s, there is an obvious clustering of geographical distribution of gastric cancer in the country, with the high mortality being mostly located in rural areas, especially in gansu, henan, hebei, shanxi and shaanxi provinces in the middle-western part of china. despite a sli ...200616440411
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