alexa Weak response of helicobacter pylori antibody is high risk for gastric cancer: a cross-sectional study of 10,234 endoscoped Japanese.
Oncology

Oncology

Journal of Carcinogenesis & Mutagenesis

Author(s): Yamaji Y, Mitsushima T, Ikuma H, Okamoto M, Yoshida H,

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Abstract BACKGROUND: A large number of endoscoped members of the general Japanese population were surveyed to investigate the relationship between Helicobacter pylori infection and gastric cancer. Special attention was given to antibody titer and age of the subjects. METHODS: We performed gastrointestinal endoscopy and measured serum anti-H. pylori antibody in 10,234 consecutive Japanese who participated in a health examination program. Gastric cancer, when suspected, was confirmed by histology. We graded the H. pylori antibody titer into three groups in accordance with optical density values by ELISA: 'strongly positive', 'weakly positive', and 'negative'. RESULTS: Among the 10,234 subjects (men/women, 7.021/3,213; mean age, 49.1 years), 4,909 (48\%) were strongly positive, 1,750 (17\%) were weakly positive, and 3,575 (35\%) were negative for H. pylori antibody. Thirty-seven cases of gastric cancer were found among the 10,234 subjects (0.36\%); 23/4,909 (0.47\%) in the strongly positive group, 9/1,750 (0.51\%) in the weakly positive group, and 5/3,575 (0.14\%) in the negative group. Both the strongly and weakly positive groups showed a higher risk of gastric cancer than the negative group. In the subjects over age 60, the weakly positive group seemed to show the highest risk for gastric cancer. CONCLUSIONS: In this investigation of 10,234 Japanese, based on endoscopy results, those with serum H. pylori antibody had an increased risk for gastric cancer, while those 'weakly positive' showed a high risk, particularly in the elderly.
This article was published in Scand J Gastroenterol and referenced in Journal of Carcinogenesis & Mutagenesis

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