objective: to investigate the presence of helicobacter pylori in sinonasal mucosa of patients with chronic sinusitis design: a prospective case-control study materials and methods: mucosal specimens were collected from the mid-third middle meatus and lateral side of mid-cornea. h. pylori has been investigated using pcr after dna extraction and urease test. results: h. pylori was not found in an...

background and objectives: invasive and non-invasive techniques are used to diagnose h. pylori infection. some factors influence the choice of a diagnostic test, such as the sensitivity and specificity of the tests, the clinical circumstances and the cost-effectiveness of the testing strategy. the aim of this study was to reveal the relationship between different h. pylori infection diagnosis m...

egg drop syndrome (eds) is caused by a hemagglutinating adenovirus which has become a major cause of lost egg production and sever economic losses in breeder and layer chicken flocks throughout the world. a pcr assay was optimized for detection of eds virus in inoculated allantoic fluids (afs) of duck and chicken emberyonated eggs. two strains of eds viruses were propagated in allantoic cavity ...