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...

Fecal excretion of hepatitis A virus (HAV) in 18 patients with HAV infection was evaluated by enzyme immunoassay (EIA) to detect viral antigen and by reverse transcription-PCR amplification followed by ethidium bromide staining (PCR-ETBr) or nucleic acid hybridization (PCR-NA) to detect viral genetic material. A gradation of sensitivity was observed in the detection of virus by the three method...

There is a great need to detect gastrointestinal tract cancer at an early stage. It is well known that most carcinoma tissues of the gastrointestinal tract contain carcinoembryonic antigen (CEA). Stools are a rich source of cells derived from the gastrointestinal tract. We analyzed total fecal CEA in 60 gastrointestinal tract cancer patients, 20 benign gastrointestinal tract disorder patients, ...

Helicobacter pylori infection is usually acquired in early childhood and it can persist throughout life without antibiotic treatment. This study aimed to compare the accuracy of the noninvasive H. pylori Stool Antigen Test-applied on the stool samples with the invasive gold standart Rapid Urease Test-applied on the gastric biopy samples of patients with upper gastrointestinal complaints. After ...

PURPOSE The aim of this study was to determine the viability of the commercial test currently used for detection of H. pylori antigens in the stool for detection of H. pylori antigens in dental plaque. MATERIALS AND METHODS A total of 164 dyspeptic patients entered the study; 95 H. pylori infected (positive result of at least 4 of 5 diagnostic tests: Campylobacter-like organisms test (CLO tes...

The sensitivity, specificity, positive and negative predictive values of a reagent strip test for the diagnosis of schistosomiasis mansoni by detecting circulating cathodic antigen (CCA) in urine were evaluated using 184 stool and urine samples collected from schoolchildren living in relatively low endemic area of schistosomiasis mansoni in Ethiopia. A combined result of stool samples processed...

Accurate noninvasive tests for diagnosing Helicobacter pylori infection in very young children are strongly required. We investigated the agreement between the [(13)C]urea breath test ([(13)C]UBT) and a monoclonal ELISA (HpSA) for detection of H. pylori antigen in stool. From October 2007 to July 2011, we enrolled 414 infants (123 from Brazil and 291 from Peru) of ages 6 to 30 months. Breath an...

background: among the most important parasitic disease, causing diarrhea, gi­ardia lamblia is noteworthy. nowadays detection methods for these parasites in­clude parasitological methods such as microscopic examination. the sensitivity of these methods relies on the expertise and experience of examiners. in contrast, molecular methods such as pcr are less dependent on the expertise of the exam­i...

giardia duodenalis is an important zoonotic protozoon, found in the small intestine of humans and mammals. there is very little information available regarding rabbits infected with giardia in iran. the objective of the present study is to detect giardia duodenalis antigen in companion rabbits of the ahvaz district, south-west of iran. a total of 58 fecal samples of companion rabbits that had b...