| seroprevalence of helicobacter pylori infection among children of low socioeconomic level in são paulo. | helicobacter pylori infection is mainly acquired during childhood, and is associated with significant morbidity in adults. the aim here was to evaluate the seroprevalence and risk factors of h. pylori infection among children of low socioeconomic level attended at a public hospital in são paulo, brazil. | 2010 | 21120427 |
| helicobacter pylori and iron-deficiency anemia in adolescents in brazil. | the aim of the study was to evaluate the association between helicobacter pylori infection and iron deficiency (id) in adolescents attending a public school. | 2010 | 20562724 |
| decrease in prevalence of helicobacter pylori infection during a 10-year period in brazilian children. | decreasing prevalence of h pylori infection has been reported in some countries. | 2008 | 18622470 |
| high occurrence of fusobacterium nucleatum and clostridium difficile in the intestinal microbiota of colorectal carcinoma patients. | colorectal carcinoma is considered the fourth leading cause of cancer deaths worldwide. several microorganisms have been associated with carcinogenesis, including enterococcus spp., helicobacter pylori, enterotoxigenic bacteroides fragilis, pathogenic e. coli strains and oral fusobacterium. here we qualitatively and quantitatively evaluated the presence of oral and intestinal microorganisms in the fecal microbiota of colorectal cancer patients and healthy controls. seventeen patients (between 49 ... | 2016 | 26691472 |
| [second brazilian consensus conference on helicobacter pylori infection]. | significant progress has been obtained since the first brazilian consensus conference on h. pylori infection held in 1995, in belo horizonte, mg, and justify a second meeting to establish updated guidelines on the current management of h. pylori infection. the second brazilian consensus conference on h. pylori infection was organized by the brazilian federation of gastroenterology and brazilian nucleus for the study of helicobacter and took place on june, 19-20, 2004 in são paulo, sp. thirty six ... | 2005 | 16127570 |
| factors related to helicobacter pylori prevalence in an adult population in brazil. | the prevalence of helicobacter pylori is higher in developing countries. sanitary facilities, crowding and ethnic group are some of the factors related to h. pylori infection. the aim of this study was to investigate in blood donors, free of dyspeptic symptoms, the prevalence and factors influencing h. pylori infection. | 2007 | 17241306 |
| High prevalence of duodenal ulcer in a tertiary care hospital in the city of São Paulo, SP, Brazil. | In spite of Helicobacter pylori infection being the etiological cause of peptic ulcer and its high prevalence in Brazil, the prevalence of peptic ulcer disease has been poorly studied. | 2011 | 21952700 |
| 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. | 2006 | 16622749 |
| evaluation of helicobacter pylory colonization by serologic test (igg) and dyspepsia in volunteers from the countryside of monte negro, in the brazilian western amazon region. | the present study intended to analyze the seroprevalence of helicobacter pylori, igg, and its relation to dyspepsia in a population from the western amazon region. during the "projeto bandeira cient+¡fica", a university of s+úo paulo medical school program, in monte negro's rural areas, state of rond+¦nia, 266 blood samples were collected from volunteers. the material was tested for igg antibodies anti-helicobacter pylori by elisa method and the participants were also interviewed on dyspepsia, h ... | 2010 | 21748228 |
| 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 ... | 2001 | 11714438 |
| involvement of the helicobacter pylori plasticity region and cag pathogenicity island genes in the development of gastroduodenal diseases. | infection by helicobacter pylori is associated with the development of several gastroduodenal diseases, including gastritis, peptic ulcer disease (gastric ulcers and duodenal ulcers), and gastric adenocarcinoma. although a number of putative virulence factors have been reported for h. pylori, there are conflicting results regarding their association with specific h. pylori-related diseases. in this work, we investigated the presence of virb11 and cagt, located in the left half of the cag pathoge ... | 2008 | 18560912 |
| helicobacter pylori infection and atrophic gastritis in middle-aged japanese residents of são paulo and lima. | helicobacter pylori infection and atrophic gastritis (ag) are markedly more prevalent in japan than in other industrialized countries, however, the reasons for such a high prevalence are not fully understood. to add to information on h. pylori infection and its association with ag, the authors studied japanese living in less developed countries. | 1999 | 10405867 |
| 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 ... | 2002 | 12165808 |
| community-based familial study of helicobacter pylori infection among healthy japanese brazilians. | the present study of helicobacter pylori infection was conducted in family units of japanese brazilians living in são paulo city. the authors attempted to determine the seroprevalence of h. pylori infection within family units of japanese brazilians and to identify risk factors associated with intrafamilial transmission. | 2006 | 16952040 |
| lifestyle factors associated with atrophic gastritis among helicobacter pylori-seropositive japanese-brazilians in são paulo. | studies of lifestyle factors related to gastric atrophy development in helicobacter pylori-infected individuals are limited. the present cross-sectional study aimed to examine the associations between lifestyle factors and serum pepsinogens (pgs) among anti- h. pylori antibody-seropositive japanese in brazil, where gastric cancer mortality was reported to be as high as in japanese in japan, and seropositive individuals were still frequently detected. | 2003 | 14663638 |
| serological immunoglobulin g antibody titers to helicobacter pylori in japanese brazilian and non-japanese brazilian gastric cancer patients and controls in são paulo. | helicobacter pylori (h. pylori) infection is considered a cause of gastric cancer (gc), though evidence for this association is scarce in high-risk areas. possible case control and/or ethnic differences were investigated as to the presence of h. pylori and its immunogloblin g antibody titer in the multi-ethnic city of são paulo, where the incidence of gc is relatively high. we performed a cross-sectional comparison of antibody titers to h. pylori in japanese brazilian, and non-japanese brazilian ... | 2001 | 11509113 |