2004
DOI: 10.1016/j.meegid.2004.01.006
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Revisiting the pestilence of Helicobacter pylori: insights into geographical genomics and pathogen evolution

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Cited by 27 publications
(21 citation statements)
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“…Although most H. pylori-positive persons are asymptomatic, the presence of H. pylori is associated with increased risk for the development of peptic ulcer disease, gastric adenocarcinoma, and gastric lymphoma (6,46,50). Expression of disease is associated with particular host and bacterial factors (16,17,40,47).…”
mentioning
confidence: 99%
“…Although most H. pylori-positive persons are asymptomatic, the presence of H. pylori is associated with increased risk for the development of peptic ulcer disease, gastric adenocarcinoma, and gastric lymphoma (6,46,50). Expression of disease is associated with particular host and bacterial factors (16,17,40,47).…”
mentioning
confidence: 99%
“…Para el análisis comparativo fueron seleccionados 36 estudios, de los cuales 11 (30,55%) relacionan aspectos de ancestría y diversidad genética huésped-hospedero con el desarrollo de lesiones gástricas (9,16,(18)(19)(20)(21)(22)(23)(24)(25) (tabla 3); 10 (27,77%) reportan mecanismos de adaptación de la bacteria (5,11,14,(26)(27)(28)(29)(30)(31)(32)(33) La infección por H. pylori generalmente se adquiere durante la infancia por vía oral o fecal-oral a través del agua, los alimentos y las heces; en las familias, la transmisión requiere contacto íntimo. La presencia de H. pylori varía significativamente entre regiones.…”
Section: Resultsunclassified
“…La variación genética en H. pylori tiene más poder discriminatorio en la determinación de las antiguas migraciones en la región de Ladakh del norte de la India y en el Pacífico (expansión austronesia), que los martante asociado con gastritis, que induce una respuesta inflamatoria, genera lesiones secuenciales preneoplásicas en la mucosa gástrica asociadas con el desarrollo de úlcera gastroduodenal, gastritis atrófica, displasia, CG y linfoma MALT (7,11,12,14,37). La colonización por H. pylori podría conferir protección contra la tuberculosis a través de la inducción de interferones antagónicos para el agente causal, Mycobacterium tuberculosis (39).…”
Section: Origen Y Edad De Asociaciónunclassified
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“…Bu testlerde kullanılmak amacıyla seçilen fragmentlerin güvenilirliği, üretilen proteinin antijenitesi ile doğru orantılı olarak artmakta ve testin kullanılacağı coğrafi bölge de bu konuda önem kazanmaktadır. Zira H.pylori, rekombinasyon ve mutasyon oranı çok yüksek bir bakteri olduğu için, farklı coğrafyalarda görülen genotip yoğunlukları da farklılık göstermektedir 24 . Özellikle Orta Asya ve Avrupa genotipleri, cagA dizileri ve EPIYA motifleri bakımından oldukça farklıdır.…”
Section: Discussionunclassified