نتایج جستجو برای: caga antibody

تعداد نتایج: 168007  

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...

Journal: :BioMed research international 2015
Ari Fahrial Syam Muhammad Miftahussurur Willy Brodus Uwan David Simanjuntak Tomohisa Uchida Yoshio Yamaoka

We measured the accuracy of the urine test (RAPIRUN) for detection of Helicobacter pylori infection in Indonesia (Jakarta, Pontianak, and Jayapura) using histology confirmed by immunohistochemistry and/or culture as gold standards. We also used immunohistochemistry to identify CagA phenotype and analyzed H. pylori CagA diversity in Indonesia. The overall prevalence of H. pylori infection in 88 ...

Journal: :BMC Gastroenterology 2006
Angel Ferrández Rafael Benito Juan Arenas María Asunción García-González Federico Sopeña Javier Alcedo Javier Ortego Ricardo Sainz Angel Lanas

BACKGROUND & AIM The role that H. pylori infection plays in the development of and Barrett's esophagus (BE) is uncertain. We tested the hypothesis that infection with cagA+ Helicobacter pylori strains protects against the development of BE. METHODS We studied 104 consecutive patients, residents in an area with a high prevalence of H. pylori infection, with BE and 213 sex- and age-matched cont...

Journal: :The Journal of biological chemistry 2008
Jared L Snider Cody Allison Bryan H Bellaire Richard L Ferrero James A Cardelli

The Helicobacter pylori CagA protein is translocated into gastric epithelial cells through a type IV secretion system (TFSS), and published studies suggest CagA is critical for H. pylori-associated carcinogenesis. CagA is thought to be necessary and sufficient to induce the motogenic response observed in response to CagA+ strains, as CagA interacts with proteins involved in adhesion and motilit...

2016
Hailin Li Bing Zhang Xiaomeng Hu Yingzi Dong Qing Fan Fang Guo Xiyun Ren Haibo Zhou Wenjing Tian Yashuang Zhao

FliD and CagA are important virulence factors of H. pylori. We aimed to evaluate the screening values of FliD and CagA for gastric cancer (GC). Serum samples were obtained from 232 cases and 266 controls in a case-control study. Unconditional multivariate logistic regression with odds ratios (ORs) and 95% confidence intervals (CIs) was used to analyze the relationships between FliD, CagA and GC...

2012
Mehran Rogha Davood Dadkhah Zahra Pourmoghaddas Keivan Shirneshan Marjan Nikvarz Masoud Pourmoghaddas

BACKGROUND There are few literatures evaluating the association between cytotoxin-associated gene A (CagA) positive strains of Helicobacter pylori (HP) and the severity of coronary heart disease (CHD). This study was designed to investigate this association. METHODS Medical and drug history of 112 consecutive patients who were candidate for coronary angiography were taken. Fasting blood sampl...

Journal: :The Journal of infectious diseases 2002
Abraham M Y Nomura James Lee Grant N Stemmermann Ryan Y Nomura Guillermo I Perez-Perez Martin J Blaser

Helicobacter pylori colonization is associated with gastric cancer, but whether and to what extent the risk is greater for strains with the cagA gene than for those without needs to be determined. Between 1967 and 1977, 9963 Japanese American men were recruited and examined. By 1996, incident cases of gastric carcinoma of the distal stomach had been diagnosed in 261 men. Stored serum samples fr...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2014
Harvey A Risch Lingeng Lu Mark S Kidd Jing Wang Wei Zhang Quanxing Ni Yu-Tang Gao Herbert Yu

BACKGROUND Pathophysiologic actions of Helicobacter pylori colonization on gastric acidity have been hypothesized to modulate the effect of pancreatic carcinogens, through CagA-negative organism strain type, hyperchlorhydria and increased risk of pancreatic cancer, or CagA-positive strain, hypochlorhydria and decreased risk of pancreatic cancer. We aimed to determine H. pylori strain-specific a...

2016
Rony K. Roy Michal M. Hoppe Supriya Srivastava Animesh Samanta Neel Sharma Kar Tong Tan Henry Yang Dominic C. Voon Brendan Pang Ming Teh Naoko Murata-Kamiya Masanori Hatakeyama Young-Tae Chang Wei Peng Yong Yoshiaki Ito Khek Yu Ho Patrick Tan Richie Soong Phillip H. Koeffler Khay Guan Yeoh Anand D. Jeyasekharan

Early detection of gastric cancers saves lives, but remains a diagnostic challenge. In this study, we aimed to identify cell-surface biomarkers of early gastric cancer. We hypothesized that a subset of plasma membrane proteins induced by the Helicobacter pylori oncoprotein CagA will be retained in early gastric cancers through non-oncogene addiction. An inducible system for expression of CagA w...

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