2017
DOI: 10.1590/s0004-2803.201700000-24 View full text |Buy / Rent full text
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Abstract: -Background -The clinical outcome of Helicobacter pylori infection has been associated with virulence factors. The presence of these factors is useful as molecular markers in the identification of the high risk for developing severe gastric pathologies. Objective -To correlate the presence of virulence markers cagA and bab2A of H. pylori in oral and gastric biopsy samples. Methods -An observational, prospective, descriptive, and cross-sectional study was carried out between September 2011 and September 2012. P… Show more

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“…H. pylori is a standout among the most widely recognized infectious agents around the world, and roughly half of the world's population is estimated to be infected [ 24 ]. Multiple diagnostic techniques are developed to detect H. pylori infection and are divided into two groups of invasive and noninvasive methods according to the necessity of endoscopic biopsy [ 25 ].…”
Section: Discussionmentioning
“…There is evidence that H. pylori and Candida share habits in areas of the human anatomy, such as in the mouth, which is the anatomical site for the entry of microorganisms that colonize the digestive apparatus, in addition to the fact that both microorganisms can survive in the acidic environment of the stomach [11][12][13] , which would favor their interaction and the internalization of the bacterium in the yeast, which would grant it protection, nutrition, and a transmission medium that would allow the bacteria to survive outside the human gastrointestinal environment since yeast can survive in different environments, including in conditions with a lack of nutrients 2.1014-16 .…”
Section: H Pylori Infections Are a Public Health Problem Worldwide mentioning
“…Otros estudios recientes muestran una prevalencia de 69,5%, 77,3% y 87,5%, para las cepas cagA-positivas en poblaciones de Malasia, India y China, respectivamente [22][23][24] . Por su parte, en América Latina, se reportan similares resultados para este tipo de cepas, con prevalencias de 62,6%, 71,0% y 85,6%, para México, Argentina y Brasil, respectivamente [25][26][27] . Es interesante notar que reportes recientes no encuentran una asociación estadísticamente significativa para la prevalencia de cepas cagA-positivas y el cáncer gástrico 24,25,27 .…”
Section: Discussionunclassified
“…is a spiral-shaped, flagellated, microaerophilic, Gram-negative bacterium, which coevolved with humans >50,000 years [ 9 , 15 ]. The bacterium, discovered in 1982 by Warren and Marshall [ 16 , 17 ], colonizes the stomach in approximately 4.4 billion individuals [ 10 , 18 ] and is currently recognized as the most important microbiological agent in human upper gastrointestinal tract disorders. The prevalence of HPI (about 30% in developed countries and up to 80% in developing countries) varies by age (higher in the elderly, especially among institutionalized people); socioeconomic, urbanization and sanitation conditions; lifestyle and diet factors; and geographical regions (Central/South America, Asia, Eastern and Southern Europe have 50–80% higher prevalence than the rest of the world) [ 19 ].…”
Section: Brief Overview Of Helicobacter Pylori mentioning
“…Durante muito tempo, discute-se a relação entre o Helicobacter pylori (HP) e a doença do refluxo gastresofágico (DRGE).Diversos estudos mostram não haver relação entre a presença de infecção do H. pylori e os sintomas de DRGE. No entanto, para além disso foi estudado não só a relação das duas patologias em si mas também a erradicação do HP e os sintomas de DRGE [12][13][14][15][16] .…”
Section: Relação Entre O H Pylori E a Doença Do Refluxo Gastresofágicounclassified