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helicobacter pylori seropositivity among 963 japanese brazilians according to sex, age, generation, and lifestyle factors.seropositivity of anti-helicobacter pylori antibody (hp + ) was examined among japanese brazilians. the study was announced through 18 japanese community culture associations in são paulo, curitiba, mogi das cruzes, and mirandopolis in 2001. among 969 participants, 963 individuals aged 33 - 69 years were analyzed. the overall hp + % was 48.1% (95% confidence interval, 44.9 - 51.3%). there was no difference in hp + % between 399 males and 564 females (49.6% and 47.0%, respectively). the hp + % in ...200111714438
helicobacter pylori seropositivity and il-1b c-31t polymorphism among japanese brazilians.we reported previously that anti-helicobacter pylori antibody seropositivity (hp+) had an association with interleukin 1b (il-1b) c-31t genotype, especially among smokers. this study examined the association for japanese brazilians. in this cross-sectional study, voluntary participation was announced through japanese brazilian communities in sao paulo, curitiba, mogi das cruzes, and mirandopolis; 963 japanese brazilians (399 males and 564 females) aged 33-69 years participated. lifestyle data an ...200212165808
associations of tnf-a-1031tt and -857tt genotypes with helicobacter pylori seropositivity and gastric atrophy among japanese brazilians.our previous study in a japanese population showed elevated helicobacter pylori seropositivity in those with tumor necrosis factor (tnf) a -1031tt and -857tt genotypes. this study examined the associations of this seropositivity and serum pepsinogen (pg) levels with these genotypes in japanese brazilians.200616622749
use of polymerase chain reaction and enzymatic cleavage in the identification of helicobacter spp. in gastric mucosa of human beings from north paraná, brazil.helicobacter pylori is the most common gastric bacteria of human beings. animal-borne helicobacter have been associated with gastritis, ulceration, and gastric mucosa-associated lymphoid-tissue lymphoma in people. we attempted to identify the species of helicobacter spp. that infect human beings in north paran , brazil. samples of gastric mucosa from 38 dyspeptic patients were analyzed by optic microscopy on silver stained slides, polimerase chain reaction (pcr), and enzymatic cleavage. genus an ...200312764444
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