Dulciene Maria de Magalhães Queiroz

Summary

Affiliation: Belo Horizonte
Country: Brazil

Publications

  1. pmc Iron status and Helicobacter pylori infection in symptomatic children: an international multi-centered study
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    PLoS ONE 8:e68833. 2013
  2. pmc The serum levels of the cytokines involved in the Th17 and Th1 cell commitment are increased in individuals with borderline thrombocytopenia
    Andreia Maria Camargos Rocha
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av, Alfredo Balena, 190, sala 216, Belo Horizonte, 30130 100, Brazil
    J Hematol Oncol 6:28. 2013
  3. pmc Increased gastric IL-1β concentration and iron deficiency parameters in H. pylori infected children
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    PLoS ONE 8:e57420. 2013
  4. pmc Disease association with two Helicobacter pylori duplicate outer membrane protein genes, homB and homA
    Monica Oleastro
    INSERM U853, 33076 Bordeaux, France
    Gut Pathog 1:12. 2009
  5. pmc Higher number of Helicobacter pylori CagA EPIYA C phosphorylation sites increases the risk of gastric cancer, but not duodenal ulcer
    Sérgio A Batista
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av, Alfredo Balena, 190, sala 216, Belo Horizonte, Minas Gerais, 30130 100, Brazil
    BMC Microbiol 11:61. 2011
  6. pmc Allelic diversity and phylogeny of homB, a novel co-virulence marker of Helicobacter pylori
    Monica Oleastro
    Departamento de Doenças Infecciosas, Instituto Nacional Saúde Dr Ricardo Jorge, Av Padre Cruz, 1649 016 Lisboa, Portugal
    BMC Microbiol 9:248. 2009
  7. pmc Low prevalence of H. pylori infection in HIV-positive patients in the northeast of Brazil
    Andréa B C Fialho
    Clinical Research Unity Department of Internal Medicine Federal University of Ceará, Fortaleza, Ceara, Brazil
    BMC Gastroenterol 11:13. 2011
  8. ncbi request reprint cagA-positive Helicobacter pylori and risk for developing gastric carcinoma in Brazil
    D M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
    Int J Cancer 78:135-9. 1998
  9. doi request reprint dupA polymorphisms and risk of Helicobacter pylori-associated diseases
    Dulciene M M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av Alfredo Balena, 190 216, Belo Horizonte, MG, 30130 100, Brazil
    Int J Med Microbiol 301:225-8. 2011
  10. doi request reprint Helicobacter pylori virulence factors as tools to study human migrations
    Dulciene Maria de Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais Av Alfredo Balena 190 216, 30130 100 Belo Horizonte, MG, Brazil
    Toxicon 56:1193-7. 2010

Collaborators

  • Jean E Crabtree
  • Gifone A Rocha
  • Ian R Sanderson
  • S B Moura
  • R Dani
  • Andreia Maria Camargos Rocha
  • Monica Oleastro
  • Marília Campos Abreu Marino
  • Fabrício Freire De Melo
  • Cláudia Souza
  • Nelma Cristina Diogo Clementino
  • Sérgio A Batista
  • Andréa B C Fialho
  • Rita Cordeiro
  • Yoshio Yamaoka
  • Lurdes Monteiro
  • A A Ashour
  • Manuel B Braga-Neto
  • Olindo Assis Martins Filho
  • Christianne F V Takeda
  • Lucia L B C Braga
  • Rodrigo C Oliveira
  • Cícero I S Silva
  • Maria Luiza Silva
  • Juliana L M Sun
  • Ivan E B Saraiva
  • Mônica M D A Cabral
  • Adriana Bozzi
  • Andreia M C Rocha
  • Eder J C Guerra
  • André M N Fialho
  • Karine C Fernandes
  • Francis Megraud
  • Armelle Menard
  • E N Mendes
  • A M Rocha
  • A S de Carvalho
  • G B Collares
  • A M Nogueira
  • C A de Oliveira

Detail Information

Publications22

  1. pmc Iron status and Helicobacter pylori infection in symptomatic children: an international multi-centered study
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    PLoS ONE 8:e68833. 2013
    ..We studied the effects of H. pylori infection on ID/IDA in a cohort of children undergoing upper gastrointestinal endoscopy for upper abdominal pain in two developing and one developed country...
  2. pmc The serum levels of the cytokines involved in the Th17 and Th1 cell commitment are increased in individuals with borderline thrombocytopenia
    Andreia Maria Camargos Rocha
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av, Alfredo Balena, 190, sala 216, Belo Horizonte, 30130 100, Brazil
    J Hematol Oncol 6:28. 2013
    ....
  3. pmc Increased gastric IL-1β concentration and iron deficiency parameters in H. pylori infected children
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    PLoS ONE 8:e57420. 2013
    ..In conclusion, high gastric levels of IL-1β can be the link between H. pylori infection and iron deficiency/iron deficiency anaemia in childhood...
  4. pmc Disease association with two Helicobacter pylori duplicate outer membrane protein genes, homB and homA
    Monica Oleastro
    INSERM U853, 33076 Bordeaux, France
    Gut Pathog 1:12. 2009
    ..CONCLUSION: The global results suggest that homB and homA contribute to the determination of clinical outcome...
  5. pmc Higher number of Helicobacter pylori CagA EPIYA C phosphorylation sites increases the risk of gastric cancer, but not duodenal ulcer
    Sérgio A Batista
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av, Alfredo Balena, 190, sala 216, Belo Horizonte, Minas Gerais, 30130 100, Brazil
    BMC Microbiol 11:61. 2011
    ..CagA EPIYA was determined by PCR and confirmed by sequencing. A total of 436 patients were included, being 188 with gastric cancer, 112 with duodenal ulcer and 136 with gastritis...
  6. pmc Allelic diversity and phylogeny of homB, a novel co-virulence marker of Helicobacter pylori
    Monica Oleastro
    Departamento de Doenças Infecciosas, Instituto Nacional Saúde Dr Ricardo Jorge, Av Padre Cruz, 1649 016 Lisboa, Portugal
    BMC Microbiol 9:248. 2009
    ..This study investigated the distribution of homB and homA genes in 455 H. pylori strains from East Asian and Western countries, and carried out sequence comparison and phylogenetic analyses...
  7. pmc Low prevalence of H. pylori infection in HIV-positive patients in the northeast of Brazil
    Andréa B C Fialho
    Clinical Research Unity Department of Internal Medicine Federal University of Ceará, Fortaleza, Ceara, Brazil
    BMC Gastroenterol 11:13. 2011
    ..This study conducted in Northeastern Brazil, evaluated the prevalence of H. pylori infection and the presence of gastritis in HIV-infected patients...
  8. ncbi request reprint cagA-positive Helicobacter pylori and risk for developing gastric carcinoma in Brazil
    D M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
    Int J Cancer 78:135-9. 1998
    ..On the other hand, no association was observed between cag A-positive status and proximal gastric carcinoma...
  9. doi request reprint dupA polymorphisms and risk of Helicobacter pylori-associated diseases
    Dulciene M M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av Alfredo Balena, 190 216, Belo Horizonte, MG, 30130 100, Brazil
    Int J Med Microbiol 301:225-8. 2011
    ..04). In conclusion, the infection with a H. pylori strain containing the dupA without the stop codon polymorphisms is associated with a lower risk of development of gastric carcinoma in Brazilian subjects...
  10. doi request reprint Helicobacter pylori virulence factors as tools to study human migrations
    Dulciene Maria de Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais Av Alfredo Balena 190 216, 30130 100 Belo Horizonte, MG, Brazil
    Toxicon 56:1193-7. 2010
    ..It is possible that this finding represents H. pylori recombination upon short contact between human groups. Alternatively, it could be due to a founder effect from a small cluster of Asian origin native Americans...
  11. ncbi request reprint Factors associated with Helicobacter pylori infection by a cagA-positive strain in children
    D M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina UFMG, 30130 100, Belo Horizonte, MG, Brazil
    J Infect Dis 181:626-30. 2000
    ..Increased cagA positivity was also associated with increased age, but no association between cagA-positive status and sex was observed...
  12. doi request reprint IL2-330G polymorphic allele is associated with decreased risk of Helicobacter pylori infection in adulthood
    Dulciene M M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Av Alfredo Balena, 190 216 30130 100, Belo Horizonte, Brazil
    Microbes Infect 11:980-7. 2009
    ..99 vs. 14.17 pg/mL, TGF-beta=45.88 vs. 93.44 pg/mL) (p<10(-3) for all). In conclusion, in the context of H. pylori infection, IL2-330 T-->G polymorphism is functional and is associated with decreased risk of infection in adults...
  13. pmc Role of corpus gastritis and cagA-positive Helicobacter pylori infection in reflux esophagitis
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    J Clin Microbiol 40:2849-53. 2002
    ..04, 95% CI = 1.01 to 1.07) were associated with GERD. In conclusion, the study provides evidence supporting the independent protective roles of cagA-positive H. pylori strains and the degree of corpus gastritis against GERD...
  14. doi request reprint Immune response and gene polymorphism profiles in Crohn's disease and ulcerative colitis
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    Inflamm Bowel Dis 15:353-8. 2009
    ..Our aim was to investigate associations among IL1B-511, IL1B-31, IL1RN, TNFA-307, TLR-2, TLR-4, IL2-330, NOD2 G908R, NOD2 L1007fsinsC polymorphisms and both Crohn's disease (CD) and ulcerative colitis (UC) in a Brazilian population...
  15. ncbi request reprint Association between Helicobacter pylori infection and cirrhosis in patients with chronic hepatitis C virus
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte
    Dig Dis Sci 51:370-3. 2006
    ..04; 95% CI = 1.00-1.07) of patients remained significant and independently associated with cirrhosis. In conclusion, our results demonstrate an association between H. pylori infection and cirrhosis in patients with hepatitis C virus...
  16. ncbi request reprint IL1RN polymorphism and cagA-positive Helicobacter pylori strains increase the risk of duodenal ulcer in children
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, UFMG, Belo Horizonte 30130 100, Brazil
    Pediatr Res 58:892-6. 2005
    ..pylori strain was the variable. This study provides evidence supporting independent roles of IL1RN*2 allele and cagA-positive status in the genesis of duodenal ulcer in children...
  17. ncbi request reprint IL1B and IL1RN polymorphic genes and Helicobacter pylori cagA strains decrease the risk of reflux esophagitis
    Dulciene Maria Magalhães Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    Gastroenterology 127:73-9. 2004
    ..The aim of this study was to evaluate whether carriers of these polymorphic genes are protected against gastroesophageal reflux disease (GERD). TNFA-308 polymorphisms were also studied...
  18. pmc iceA genotypes of Helicobacter pylori strains isolated from Brazilian children and adults
    A A Ashour
    Laboratory of Molecular Biology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil, 30130-100
    J Clin Microbiol 39:1746-50. 2001
    ..003). No association between cagA status and sex was found (P = 0.28). In conclusion, we think iceA should not be used as a reliable marker for predicting the clinical outcome of H. pylori infection...
  19. ncbi request reprint Serological and direct diagnosis of Helicobacter pylori in gastric carcinoma: a case-control study
    D M Queiroz
    Laboratory of Research in Bacteriology, Universidade Federal de Minas Gerais, Brazil
    J Med Microbiol 48:501-6. 1999
    ..pylori infection in the gastric carcinoma group. Infection was significantly more frequent in the gastric carcinoma patients than in the controls. H. pylori infection was associated with an increased risk of developing gastric carcinoma...
  20. ncbi request reprint Omeprazole, clarithromycin and furazolidone for the eradication of Helicobacter pylori in patients with duodenal ulcer
    R Dani
    Department of Pathology of the School of Medicine of the Federal University of Minas Gerais, Belo Horizonte, Brazil
    Aliment Pharmacol Ther 13:1647-52. 1999
    ..To evaluate the efficacy of omeprazole plus clarithromycin and furazolidone in Helicobacter pylori eradication and duodenal ulcer healing in Brazilian patients...
  21. pmc The levels of IL-17A and of the cytokines involved in Th17 cell commitment are increased in patients with chronic immune thrombocytopenia
    Andreia Maria Camargos Rocha
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    Haematologica 96:1560-4. 2011
    ..In conclusion, our results point to a putative role for Th-17 cells/IL-17A cytokine in the pathogenesis of chronic immune thrombocytopenia...
  22. ncbi request reprint Spiral bacterium associated with gastric, ileal and caecal mucosa of mice
    D M Queiroz
    Laboratory of Research in Bacteriology, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
    Lab Anim 26:288-94. 1992
    ..Entwined, braided periplasmic fibrils covered the surface of the cell. This spiral bacterium seemed to be part of the normal intestinal flora but was associated with gastritis...