نتایج جستجو برای: helicobacter pylori
تعداد نتایج: 24767 فیلتر نتایج به سال:
fallacy. Am J Epidemiol 1988; 127:893–904. 3. Greenland S, Robins J. Invited commentary: ecologic studies–biases, misconceptions, and counterexamples. Am J Epidemiol 1994; 139: 747–60. 4. Blaser MJ, Chen Y, Reibman J. Does Helicobacter pylori protect against asthma and allergy? Gut 2008; 57:561–7. 5. Höök-Nikanne J, Pérez-Pérez GI, Blaser MJ. Antigenic characterization of Helicobacter pylori st...
BACKGROUND Helicobacter pylori is known to cause gastric cancer. Presence and carcinogenicity in the upper aerodigestive system is doubtful. This study examined the prevalence of Helicobacter pylori and related factors in biopsies from the upper aerodigestive tract (UADT) in patients with gastric colonization by Helicobacter pylori. METHODS In a case series study, 26 patients with histopathol...
BACKGROUND We have documented a high prevalence of Helicobacter pylori infection in patients with glaucoma. OBJECTIVE To evaluate the effect of H pylori eradication on the 2 most commonly used glaucoma parameters: intraocular pressure and visual field. METHODS A total of 41 patients with glaucoma and 30 age-matched anemic controls underwent upper gastrointestinal endoscopies and gastric muc...
helicobacter pylori infection is one of the most common human infections which have been associated with many upper gasterointestinal complications. different treatment regimens for helicobacter pylori eradication have been used. one of these regimes is the quadruple therapy regimen which metronidazole is one of the medications. in recent years several reports on h. pylori resistance to this an...
Helicobacter pylori is often found under the mucosa (over the gastric mucosa) and between mucosal layer and apical surface of mucosal epithelium. It produces urease enzyme which produces ammonium and carbon dioxide to cause reduction in pH of stomach, which has some effects on bacterial colonization and chemotaxis of neutrophils, monocytes and platelet activator factors and it starts an inf...
Abstract Background and objectives: Helicobacter pylori is a helical gram negative bacterium with polar flagella, discovered by Warren and Marshall in 1983. Helicobacter pylori exist in the stomach mucus tissue of less than 20% of people under 30 years old, but this amount would increase up to 40% and 60% in 60- year- old people. The aim of this study was to compare three methods of culture med...
BACKGROUND/AIMS One-week triple therapy has been recommended as a standard regimen for eradicating Helicobacter pylori infection. The emergence of antibiotic-resistant strains, adverse drug effects, poor compliance and high cost of therapy add problems to the management of these patients. In this study, we assessed whether a 3-day triple therapy could be effective in eradicating Helicobacter py...
Helicobacter pylori infection, the most common chronic bacterial infection in the world, and an important cause of gastrointestinal disorders, may be involved in the pathogenesis of some extra-gastrointestinal disturbances, as well as an increase in blood levels of certain inflammatory markers. Anti-bacterial activity against Helicobacter pylori and anti-inflammatory properties of omega-3 fatty...
Gastric colonization with Helicobacter pylori induces diverse human pathological conditions, including superficial gastritis, peptic ulcer disease, mucosa-associated lymphoid tissue (MALT) lymphoma, and gastric adenocarcinoma and its precursors. The treatment of these conditions often relies on the eradication of H. pylori, an intervention that is increasingly difficult to achieve and that does...
The antibacterial activities of NE-2001 were tested against 24 clinical isolates of Helicobacter pylori and compared with those of amoxicillin, clarithromycin, metronidazole, and furazolidone. The MIC(50) and MIC(90) of this synthetic compound on the isolates were 8 and 16 mug/ml, respectively. This action was highly selective against Helicobacter pylori; there was a >4-fold difference between ...
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