Genetic differences between duodenal ulcer patients who were positive or negative for Helicobacter pylori.

Abstract excerpt

This study investigated genetic differences between Helicobacter pylori-positive and -negative duodenal ulcer patients. Seventy-two patients with duodenal ulcer (61 H. pylori positive and 11 H. pylori negative) were examined for HLA-DQA1 genotype. The allele frequency of DQA1*0102 was higher in H. pylori-negative than in H. pylori-positive patients. Moreover, the genotypes that possessed the DQA1*0102 allele were...

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