BACKGROUND Many of the pathogenic effects of Helicobacter pylori infection are related to chronic active inflammation, which is controlled and maintained by the complex interplay of pro-inflammatory and anti-inflammatory mediators. Pro-inflammatory genetic polymorphisms tend to increase the risk of development of gastric cancer. In Africa, the data are scarce regarding the effects of these poly...

BACKGROUND/OBJECTIVE A high prevalence of Helicobacter pylori infection has been reported in Iran. Although the importance of H. pylori in the induction of peptic ulcer disease is clearly defined, only few studies have addressed its role in bleeding from peptic ulcers. We evaluated the role of H. pylori in peptic ulcer bleeding. METHODS Patients with acute peptic ulcer bleeding (PUB) and thos...

Cryptococcus neoformans var. neoformans (74 isolates) and C. neoformans var. gattii (44 isolates) were used to test urease activity after growth on both yeast extract-glucose-peptone agar (YEPG) and on YEPG supplemented with 100 microM EDTA. Every isolate grown on YEPG agar for 48 h at 30 degrees C produced a positive reaction within 1 h in a modified rapid urease assay at 37 degrees C. However...

A 3-month-old male cat in the animal facility was presented for investigation of anorexia and occasional vomiting. We collected the specimens from gastroscopic biopsy and stool collection. The gastroscopic biopsy specimens were tested using a rapid urease test, CLO Helicobacter-detection kits. Stool specimens were gathered and evaluated using the commercially available SD Bioline H. pylori Ag k...

The prevalence of H. pylori infection in 200 dyspeptic patients undergoing upper G.I. endoscopy was investigated by histology and rapid urease test. H. pylori was associated with 86% cases of chronic gastritis, 84.6% cases of duodenal ulcers and 78.5% of gastric ulcers. None of the 15 histologically normal gastric biopsies showed H. pylori.

Helicobacter pylori is a human pathogen that infects over 50% of the population worldwide. It is the most important etiologic agent of gastroduodenal ulcers and malignancies. Helicobacter pylori urease enzyme is considered the main factor for the organism's colonization in the gastroduodenal mucosa. Hens immunized with the purified urease produce a highly specific anti-H. pylori urease immunogl...

background the use of quadruple therapy for helicobacter pylori ( h. pylori ) eradication is a highly efficacious, gold standard regimen. however, according to a num­ber of studies, this regimen has numerous compliance problems and adverse effects. in the current study we have evaluated the h. pylori eradication rate following a quadruple therapy that included omeprazole, bismuth subcitrate, am...