001). Logistic regression analysis revealed that being younger than 40 years was significantly related to the

absence of H. pylori infection (OR = 2.507, 95% CI = 1.621–3.878, p < .001). The statuses of H. pylori infection, IgE hypersensitivity, and allergic diseases differ with age group, there being a higher prevalence of IgE-related allergic disease and a lower H. pylori infection rate among young adults. The hygiene hypothesis might explain these findings in young Koreans, due to the rapid development and improvements in sanitation in Korea. "
“Background:  Given that members of Helicobacteraceae family colonize the intestinal mucus APO866 cell line layer, it has been hypothesized that they may play a role in Crohn’s disease. This study investigated the presence of Helicobacteraceae DNA in biopsies collected from children with Crohn’s disease and controls. Materials and Methods:  The presence of Helicobacteraceae DNA was investigated Selleckchem CT99021 in intestinal biopsies collected from 179 children undergoing colonoscopy (Crohn’s disease n = 77, controls n = 102) using

a Helicobacteraceae-specific PCR. Results:  Members of the Helicobacteraceae were detected in 32/77 children with Crohn’s disease (41.5%) and 23/102 controls (22.5%). Statistical analysis showed the prevalence of Helicobacteraceae detected in patients to be significantly higher than that in controls (p = .0062). Analysis of non-pylori Helicobacteraceae showed that their prevalence was also significantly higher in patients than in controls (p = .04). Helicobacter pylori was detected in 14.0% of the biopsies across all groups. Given that all children tested were negative for gastric H. pylori, this was a surprising finding. Phylogenetic analysis of H. pylori sequences detected in the biopsies showed that the H. pylori strains identified in the patients

did not group with gastric H. pylori included in the analysis, but rather with other H. pylori strains detected in the intestine, gall bladder, and liver. Conclusions:  oxyclozanide The higher prevalence of Helicobacteraceae DNA in Crohn’s disease patients would suggest that members of this family may be involved in this disease. In addition, phylogenetic analysis of H. pylori strains showed that extragastric sequences clustered together, indicating that different H. pylori strains may adapt to colonize extragastric niches. “
“To reduce the incidence of metachronous gastric carcinoma after endoscopic resection of early gastric cancer, Helicobacter pylori eradication therapy has been endorsed. It is not unusual for such patients to be H. pylori negative after eradication or for other reasons. If it were possible to predict H. pylori status using endoscopy alone, it would be very useful in clinical practice. To clarify the accuracy of endoscopic judgment of H. pylori status, we evaluated it in the stomach after endoscopic submucosal dissection (ESD) of gastric cancer.