Results 11 to 20 of about 33,889 (177)
Якутский медицинский журнал, 2021 The results of studying the prevalence of East Asian and Western variants of the cagA gene among Helicobacter pylori strains in Yakutia are presented. In the studied sample of Helicobacter pylori (H. pylori) DNA samples isolated from biopsies of patients
N. N. Gotovtsev +5 more
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Characterizing Helicobacter pylori cagA in Myanmar
Gut and Liver, 2018 Background/AimsDifferences in the Helicobacter pylori infection rate are not sufficient to clarify the dissimilarity of gastric cancer incidence between Myanmar and its neighboring countries. To better understand this trend, the H.
Thein Myint +8 more
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Characterization of the cagA-gene in Helicobacter pylori in Mongolia and detection of two EPIYA-A enriched CagA types [PDF]
International Journal of Medical Microbiology, 2022 Helicobacter pylori infection is strongly associated with gastritis, gastroduodenal ulcer disease and gastric carcinoma. The virulence of H. pylori strains increases with the presence of the pathogenicity island PAI, which encodes a Type 4 Secretion System and the oncoprotein CagA.
Oyunbaatar Altanbayar +8 more
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Acid-Tolerance Response in Helicobacter pylori and Differences between cagA+ and cagA- Strains [PDF]
Journal of Infectious Diseases, 1998 Helicobacter pylori cagA transcription and translation are maximal at pH 6 in stationary phase. The aim of this study was to determine whether H. pylori has an acid-tolerance response and whether that response is related to CagA expression, by investigating whether preexposure to pH 5 or 6 improved survival of cells subsequently exposed to pH 3.
M, Karita, M J, Blaser
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Gut Pathogens, 2022 Background The chronic infection with Helicobacter pylori (H. pylori), especially cytotoxin-associated gene A-positive (CagA+) strains, has been associated with various extragastric disorders.
Yinjie Guo +9 more
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Comparative Study between Helicobacter pylori East-Asian-Type with 39-bp Deletions
Biomolecular and Health Science Journal, 2022 Introduction: CagA, an oncogenic virulence factor of Helicobacter pylori, may present with 39-bp deletions in the preepiya region of East-Asian strains resulting in a virulent genotype.
Faizah Sugiarto +9 more
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Gut, 2000 Many strains of Helicobacter pylori produce an immunogenic high molecular weight protein called cytotoxin associated gene product A (CagA) and infection with such strains can be detected by a simple serological test for anti-CagA antibodies. Numerous studies over the past nine years have shown that CagA positive infections are more likely than CagA ...
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Evaluation of the Anti-East Asian CagA-Specific Antibody for CagA Phenotyping
Clinical and Vaccine Immunology, 2009 ABSTRACT The determination of the cagA genotype is generally based on sequencing the variable 3′ region of the cagA gene. In a previous study, we successfully generated an anti-East Asian CagA-specific antibody (anti-EAS Ab) immunoreactive only with the East Asian CagA and not with ...
Lam Tung, Nguyen +18 more
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Nitric oxide system in patients infected with Helicobacter pylori of different genotypes
Клинический разбор в общей медицине, 2023 Introduction. Helicobacter pylori (Hp) is a class I biological carcinogen and the third leading cause of cancer death in the world, according to the World Health Organization.
Ekaterina Yu. Plotnikova +2 more
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Production of a Recombinant CagA Protein for the Detection of Helicobacter pylori CagA Antibodies
Mikrobiyoloji Bulteni, 2014 At present, Helicobacter pylori infections affect approximately 50% of the world population. It is known that H.pylori is related with several gastric diseases including chronic atrophic gastritis, peptic and gastric ulcers as well as gastric carcinomas.
Miray, Akgüç +7 more
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