نتایج جستجو برای: h pylori stool antigen

تعداد نتایج: 742737  

Journal: :iranian journal of allergy, asthma and immunology 0
hossein ghahremani department of biochemistry, school of medicine, tehran university of medical sciences, tehran, iran. shohreh farshad alborzi clinical microbiology research center, namazi hospital, shiraz, iran. hossein amini najafabadi department of biochemistry, school of medicine, tehran university of medical sciences, tehran, iran. susan kashanian department of immunology, school of medicine, international campus, shahid sadoughi university of medical sciences, yazd, iran. mohammad amin momeni moghaddam department of biochemistry, school of medicine, tehran university of medical sciences, tehran, iran. nariman moradi department of biochemistry, school of medicine, tehran university of medical sciences, tehran, iran.

alkylhydroperoxide reductase (ahpc, the 26 kda antigen) is one of the abundant antioxidant enzymes in helicobacter pylori and seems to have a good potential for use in development of immunoassays to detect h. pylori infection in clinical specimens. this study aimed to investigate some properties of this antigen by the produced monoclonal antibodies. five established hybridoma cell lines secreti...

2015
Majid Rostami Mogaddam Abbas Yazdanbod Nastaran Safavi Ardabili Nasrollah Maleki Sonia Isazadeh

INTRODUCTION Chronic urticaria (CU) is defined as the presence of urticaria on most days of the week for a period of 6 weeks or longer. Some studies have reported an association between CU and Helicobacter pylori (H. pylori) infection. AIM To determine the prevalence of H. pylori infection using the stool antigen test in patients with idiopathic CU and to investigate the infected patients wit...

2014
Ayşe Demet Kaya Dumrul Gülen Mine Aydin Gamze Varol Saraçoğlu Aslihan Uzun

Introduction: Helicobacter pylori (H. pylori) is an important bacterial pathogen, predominantly in undeveloped countries and regions. We conducted this study to investigate the presence of H. pylori antigen in the stool specimens of children, in Tekirdag, Turkey. Material and Methods: Stool specimens of 1441 children aging between 0 month to 15 years, with the complaints of abdominal pain, anem...

2018
Markos Negash Afework Kassu Bemnet Amare Gizachew Yismaw Beyene Moges

Background Helicobacter pylori antibody titters fall very slowly even after successful treatment. Therefore, tests detecting H. pylori antibody lack specificity and sensitivity. On the other hand, H. pylori stool antigen tests are reported as an alternative assay because of their reliability and simplicity. However, the comparative performance of H. pylori stool antigen tests for detecting the ...

2013
Yi-Chia Lee Han-Mo Chiu Tsung-Hsien Chiang Amy Ming-Fang Yen Sherry Yueh-Hsia Chiu Sam Li-Sheng Chen Jean Ching-Yuan Fann Yen-Po Yeh Chao-Sheng Liao Tsung-Hui Hu Chia-Hung Tu Ping-Huei Tseng Chien-Chuan Chen Mei-Jyh Chen Jyh-Ming Liou Wei-Chih Liao Yo-Ping Lai Chen-Ping Wang Jenq-Yuh Ko Hsiu-Po Wang Hung Chiang Jaw-Town Lin Hsiu-Hsi Chen Ming-Shiang Wu

OBJECTIVE Highly sensitive guaiac-based faecal occult blood (Hemoccult SENSA) and Helicobacter pylori stool antigen testing might help detect upper gastrointestinal lesions when appended to a colorectal cancer screening programme with faecal immunochemical testing. We evaluated the diagnostic accuracies of two stool tests in detecting upper gastrointestinal lesions. DESIGN Cross-sectional des...

Journal: :international journal of pediatrics 0
m sobhani shahmirzadi pediatric gastroenterologist. department of pediatric gastroenterology and nutrition, taleghani children’s hospital, golestan university of medical science, gorgan, iran.

h. pylori infection is usually acquired in early childhood. its role in gastrointestinal and extra intestinal complaints and serious consequences in adulthood make it as challenging issues. despite different clinical presentations, in most children, the presence of h. pylori infection does not lead to clinically apparent disease, even when it causes chronic active gastritis. some of most import...

Journal: :iranian journal of microbiology 0
mohammad khalifehgholi department of pathobiology, school of public health and institute of public health research, tehran university of medical sciences, tehran, iran. fereshteh shamsipour idepartment of immunochemistry, monoclonal antibody research center, avicenna research institute, academic center for education, culture and research (acecr), terhran, iran. hossein ajhdarkosh gastroenterology and liver diseases research center (gildrc), firoozgar hospital, iran university of medical sciences, tehran, iran. naser ebrahimi daryani department of gastroenterology, imam khomeini hospital, tehran university of medical sciences, tehran, iran. mohammad-reza pourmand department of pathobiology, school of public health and institute of public health research, tehran university of medical sciences, tehran, iran. mostafa hosseini department of epidemiology and biostatistics, school of public health and institute of public health research, tehran university of medical sciences, tehran, iran.

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...

A Khakshour E Khodashenas HR Kianifar N Zabolinejad S Hiradfar SA Jafari

Introduction: Helicobacter pylori infection has various clinical features. One of the most common presentations of this infection is upper abdominal pain. Complications such as gastritis, gastric ulcer, gastric carcinoma and MALT lymphoma mandate early diagnosis of H.P infection by a low cost and non invasive manner. The aim of this study was to evaluate the diagnostic role of H.P stool antige...

Journal: :infection, epidemiology and medicine 2016
hossein kazemian hamid heidari jalil kardan yamchi aref shavalipour sobhan ghafourian

background: helicobacter pylori is the most common cause of chronic infection in the human stomach. the infection has universe prevalence in all age groups. probably, this bacterium is the cause of most common chronic bacterial infection in human beings and infects approximately half of the world population. h. pylori produces urease, an enzyme that degrades the urea in the stomach’s mucous to ...

Journal: :jundishapur journal of microbiology 0
mahtab bonyadi department of microbiology, arak university of medical sciences, arak, iran ehsanollah ghaznavi-rad associate professor, department of microbiology, school of medicine, arak university of medical sciences, arak, iran ghasem mosayebi professor entire, department of microbiology and immunology, school of medicine, arak university of medical sciences, arak, iran mohammad rafiei associate professor, department of biostatistics and epidemiology, school of medicine, arak university of medical sciences, arak, iran neda molaee department of microbiology and biotechnology, school of medicine, arak university of medical sciences, arak, iran hamid abtahi associate professor, molecular and medicine research center, arak university of medical sciences, arak, iran; associate professor, molecular and medicine research center, arak university of medical sciences, arak, iran. tel: +98-8634173502, fax: +98-8634173526

conclusions based on the findings, application of recombinant arcaga antigen for the detection of h. pylori infection is a simple, rapid, and brief non-invasive method. therefore, it can be suggested as an appropriate antigen for h. pylori detection kits. results we investigated caga protein, using the immunoblotting method in stool samples, which were already identified as positive by the appl...

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