2009
DOI: 10.1590/s0036-36342009000900010
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Relevance of Helicobacter pylori virulence factors for vaccine development

Abstract: ResumenLa infección por Helicobacter pylori incrementa el riesgo de un amplio espectro de cuadros clínicos, que van de la úlcera péptica al cáncer gástrico. Sin embargo, la infección sólo induce ulceración gástrica y duodenal o cáncer gástrico en la minoría de los sujetos infectados debido que las cepas de H. pylori son genéticamente diversas y expresan diferentes factores de virulencia. Así, los individuos infectados por cepas que expresan estos factores de virulencia probablemente desarrollan enfermedades se… Show more

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Cited by 8 publications
(9 citation statements)
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“…The genetic variations of H. pylori have been previously described and several virulence genes that play a role in the pathogenesis of gastrointestinal tract. 2 As there has been no report on genotyping of the H. pylori virulence-associated genes in hepatobiliary diseases, we investigated whether there was any such association including patients with malignant CCA and benign cholelithiasis.…”
Section: Discussionmentioning
confidence: 99%
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“…The genetic variations of H. pylori have been previously described and several virulence genes that play a role in the pathogenesis of gastrointestinal tract. 2 As there has been no report on genotyping of the H. pylori virulence-associated genes in hepatobiliary diseases, we investigated whether there was any such association including patients with malignant CCA and benign cholelithiasis.…”
Section: Discussionmentioning
confidence: 99%
“…Helicobacter pylori is well known as a causative agent of gastric adenocarcinoma 1 . Helicobacter pylori is genetically diverse with a spectrum of virulence factors so infection with different H. pylori strains will lead to diverse clinical outcomes 2 . The virulence factors of H. pylori include vac A, ice A, bab A2, cag A and cag E, which play various and important roles in pathogenesis 3–5 …”
Section: Introductionmentioning
confidence: 99%
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“…El mecanismo de transmisión de la infección por Hp es oral-oral o fecal-oral, así como por contaminación del agua 8 . El potencial patogénico de las cepas circulantes de Hp ha sido considerado como un factor decisivo en la evolución de la infección y en el desarrollo de cáncer gástrico 9 , así como relacionado con factores condicionados a circunstancias geográficas y raciales 10 . Algunos autores en Reino Unido manifestaron que los factores del estilo de vida durante la adultez, como el tabaquismo y el alcohol, podrían influir en una erradicación espontánea del Hp 11 .…”
Section: Introductionunclassified
“…Colonization of the mucosa by the causative agent would be impossible without urease, protecting the bacteria from hydrochloric acid . Microbial cells contain large amounts of urease (up to 10% of the total protein content), which is the cytoplasmic enzyme acting inside the cell and having affinity to gastric mucin.…”
Section: Pathogenetic Target For Therapeutic Agents At the Helicobactmentioning
confidence: 99%