[the association between helicobacter pylori and gastric neoplasia. epidemiologic evidence].helicobacter pylori (hp) causes chronic gastritis and, together with non-steroidal anti-inflammatory drugs, is considered the most frequent etiologic agent of peptic ulcer. since there are numerous epidemiologic and pathogenesis studies that demonstrate an association between infection by hp and gastric neoplasias, the world health organization declared, in 1994, hp infection a group 1 carcinogen (a definitive cause of human neoplasias, similar to tobacco). this article reviews the epidemiologic ...200011464618
[high frequency of precancerous lesions of gastric cancer associated with helicobacter pylori and response to treatment, in chiapas, mexico].stomach cancer is the second cause of death in mexico in patients with malignant tumors. this disease represents a public health problem. a strong association has been described between chronic infection with helicobacter pylori and gastric cancer. this malignancy is preceded by a series of preneoplastic conditions, including chronic atrophic gastritis (cag), intestinal metaplasia (im), and dysplasia. the objective of this study was to establish the prevalence of preneoplastic conditions associa ...200212412571
screening markers for chronic atrophic gastritis in chiapas, mexico.intestinal-type gastric adenocarcinomas usually are preceded by chronic atrophic gastritis. studies of gastric cancer prevention often rely on identification of this condition. in a clinical trial, we sought to determine the best serological screening method for chronic atrophic gastritis and compared our findings to the published literature. test characteristics of potential screening tests (antibodies to helicobacter pyloni or caga, elevated gastrin, low pepsinogen, increased age) alone or in ...200111219766
the association of helicobacter pylori with gastric cancer and preneoplastic gastric lesions in chiapas, mexico.helicobacter pylori recently was identified as a risk factor for gastric cancer. its association with preneoplastic conditions of the stomach, however, is undocumented.19938422620
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