background: helicobacter pylori is the cause of serious diseases including gastric cancer and gastric mucosa–associated lymphoid tissue lymphoma.50% of world population is infected by this microorganism and it -based on epidemiologic studies - is mainly acquired during childhood . there is not enough evidence about prevalence of this infection in children and its risk factors so encourage us to...

background helicobacter pylori (h. pylori) infection is common among humans and plays a major role in the etiology of peptic ulcer disease with significant morbidity in patients with hiv-1 on antiretroviral therapy. there are conflicting prevalence patterns of h. pylori in hiv-1 infected patients using various methods of detection. the noninvasive technique used for detection of h. pylori infec...

conclusions: the result of our study showed that using clarithromycin, amoxicillin and omeprazole for treatment of h. pylori infection can be useful. it is concluded from lower levels of igg and caga in blood and h. pylori antigen in stool after treatment compared to the amount of these factors before therapy. considering all these data, it is obvious that there is an urgent need to found a bet...

Background: Some antigens of H. pylori are excreted into the stool of infected people. These antigens can be used to detect the infection by immunoassays such as ELISA. Our aim was to identify these antigens by immunoblotting and affinity chromatography techniques. Methods: Four different antigenic preparations, namely, whole cell sonicate (WCS), outer membrane proteins (OMPs), cytoplasmic anti...

The aim of this study was to validate the rapid lateral flow Helicobacter pylori stool antigen test (One step H. pylori antigen test, ACON laboratories, San Diego, USA; Prime diagnostics, São Paulo), using 13C-Urea Breath Test as the gold standard for H. pylori infection diagnosis. A total of 98 consecutive patients, asymptomatic or dyspeptic, entered the study. Sixty-nine were women, with a me...

Background and Aims: Helicobacter pylori (H. Pylori) is the microorganism that infects nearly half of word's population. There are several invasive and non-invasive methods for diagnosis of infection. The main objective of this study was to evaluate antigen of H. Pylori in feces with H. pylori stool antigen (HpSA) test and comparison with rapid urease test (RUT) in the patients suspected to be ...

Background Helicobacter pylori (H. pylori) is believed to be the most common bacterial infection worldwide. Herein, we aimed to investigate the effect of red rose extract on H. pylori eradication in 9 to 15 year-old children. Materials and Methods In this randomized controlled clinical trial,by the convenience sampling method...

background : animal models have been proven useful in elucidating the details of interaction between pathogenic bacteria and their human hosts, in addition to assessing the efficacy of therapeutic compounds and vaccines. in this study, we investigate the colonization of helicobacter pylori ( h. pylori ) in experimentally-infected guinea pigs over a six-month period. materials and methods: a bac...

Helicobacter pylori infections are accompanied with the release of some antigenic material into the stool. Outer membranes proteins (OMP) are among the major antigens of bacteria, which in comparison with other bacterial constituents have less cross-reactivity. In this study, OMP of H. pylori were isolated from 11 clinical isolates and rabbit antiserum against them was used to detect possible a...