OBJECTIVES: Current nonendoscopic tests for Helicobacter pylori include antibody tests and the urea breath test. After the administration of C-urea, serum bicarbonate measurement can identify those infected with H. pylori. In this study, our aims were to determine the accuracy of the urea blood test, and to compare the accuracy of the urea blood test with that of rapid urease testing of gastric...

Objective: The purpose of this study is to compare the diagnostic performance rapid urease test for H. pylori in endoscopic samples gastric juice compared with same mucosa. Materials and methods: Cross-sectional, comparative prospective concordance tests, carried out patients referred a medical center Bogotá DC, Colombia an esophagogastroduodenoscopy. We included 130 older than 18 years,...

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...