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| 1 | Association of Helicobacter pylori infection and giardiasis: Results from a study of surrogate markers for fecal exposure among children显示文摘AIM: To investigate whether Helicobacter pylori (H pykori)infection is associated with hepatitis A virus (HAV) infection, presence of enteroparasites, and other surrogates of fecal exposure.METHODS: We conducted a cross-sectional study in 121 children consecutively admitted at a pediatric hospital inSalvador, Brazil.H pylori and HAV infection were identified by the presence of serum antibodies. Stool specimens were examined for the presence of ova and parasites. A structured questionnaire inquiring about sanitary conditions and life style was applied to each subject. RESULTS: Fifty-one of the 121 children (42.1%) werefound to be seropositive for H pylori, and 45 (37.2%) for HAV. The seroprevalence ofHpyloriand HAV both increased significantly with age. Cross-tabulation of data showed that 26 (21.5%) were seropositive and 51 (42.1%) were negative for bothHpyloriand HAV antibodies (χ2 = 7.18,OR = 2.8, CI 1.30-5.97). The age adjusted OR for an HAV-infected child being H pylori positive was 2.3 (CI1.02-5.03). The agreement between H pylori and HAVseropositivity was fair (κ = 0.24). After controlling for possible confounding, the variables remaining independently associated with seropositivity to H pyloriwere age,presence of Giardia lamblia in feces (OR = 3.2, 95%CI, 1.1-9.5) and poor garbage disposal quality (OR = 2.4,95%CI, 1.1-5.1).CONCLUSION: Our data suggest that H pylori infection is associated with surrogate markers of fecal exposure. Thus, we conclude that the fecal-oral route is relevant in the transmission of HP among children in an urban setting of a developing country. The association observed between G. lamblia and H pylori infection may have several explanations. Further studies to investigate this relationship are warranted. | Edson Duarte Moreira Jr Victor Bastos Nassri Rafaela Sousa Santos Junísia Ferraz Matos Wilson Andrade de Carvalho Célia Stolve Silvani Círia Santana e Sant'Ana | 2005 | World Journal of Gastroenterology2005，11，18： | 3 |
| 2 | Interhospitaltransfer of pan-resistant Acinetobacter strains in Johannesburg,South Africa显示文摘 | MARAIS E DE JONG G FERRAZ V | 2004 | Am J Infect Control2004，32，5： | 1 |
| 3 | Photoelectrocatalysis based on Ti/TiO2 nanotubes removes toxic properties of the azo dyes Disperse Red 1, Disperse Red 13 and Disperse Orange 1 from aqueous chloride samples 显示文摘 | Ferraz E R A Oliveira G A R Grando M D | 2013 | J Environ Manage2013，124，： | 1 |
| 4 | Microorganisms from canals of root-filled teeth with periapical lesions显示文摘 | PINHEIRO E T GOMES B P FERRAZ C C | 2003 | Int Endod J2003，36，1： | 1 |
| 5 | Hospital-acquired me- ningitis in patients undergoing craniotomy: incidence, evolution, and risk factors显示文摘 | Reichert M C Medeiros E A Ferraz F A | 2002 | Am J Infect Control2002，30，3： | 1 |
| 6 | Nonopioid analgesics shorten the duration of postoperativeileus显示文摘 | FERRAZ A A COWLES V E CONDON R E | 1995 | Am Surg1995，61，： | 1 |
| 7 | Evaluation of the Surface Treatment Effect on the Anticorrosive Performance of Paint Systems on Steel显示文摘 | CIElsner E Cavalcanti O Ferraz | 2003 | Progress in Organic Coatings2003，48，： | 1 |
| 8 | A heterologous DNA priming-Mycobacterium bo vis BCG boosting immu- nization strategy using mycobacterial Hsp70,Hsp65,and Apa antigens improves protection against tuberculosis in mice显示文摘 | Ferraz JC Stavropoulos E Yang M | 2004 | Infect Immun2004，72，12： | 1 |
| 9 | CHRONIC HEPATITIS C: HEPATIC IRON CONTENT DOES NOT CORRELATE WITH RESPONSE TO ANTIVIRAL THERAPY显示文摘 | Pereira Patricia da Silva Fucuta Silva Ivonete Sandra de Souza E Uehara Silvia Naomi de Oliveira Emori Christini Takemi Lanzoni Valéria Pereira Silva Antonio Eduardo Benedito Ferraz Maria Lucia Gomes | 2009 | Revista do Instituto de Medicina Tropical de S茫o Paulo2009，，6： | 1 |
| 10 | Evaluation of root canal microorganisms isolated from teeth with endodontic failure and their antimicrobial susceptibility显示文摘 | PINHEIRO E T GOMES B P FERRAZ C C | 2003 | Oral Microbiol Immunol2003，18，2： | 1 |
| 11 | Decay of Parkia-Oppositifolia in amazonia by Pycnoporus-Sanguineus and potential use for effluent decolorization 显示文摘 | Esilva AC Esposito E Ferraz A Duran N | 1993 | HolzJorschung1993，47，5： | 1 |
| 12 | The azo dyes DisperseRed 1 and Disperse Orange 1 increase the micronuclei frequenciesin human lymphocytes and in HepG2 cells 显示文摘 | Chequer F M Angeli J P Ferraz E R | 2009 | Mutation Research2009，676，12： | 1 |
| 13 | Hospital-acquired meningi- tis in patients undergoing craniotomy: incidence, evolution, and risk factors显示文摘 | Reichert M C Medeiros E A Ferraz F A | 2002 | Am J Infect Control2002，30，3： | 1 |
| 14 | Anti-neutrophil cytoplastic antibodies in the clinical forms of leprosy显示文摘 | Freire BF Ferraz AA Nakayama E | 1998 | Int J Lepr Other Mycobact Dis1998，66，4： | 1 |
| 15 | Static and dynamic analysis of theanterior segment with optical coherence tomography 显示文摘 | Baikoff G Lutun E Ferraz C | 2004 | J Cata-ract Refract Surg2004，30，： | 1 |
| 16 | Static and dynamic analysis of the anterior segment with optical coherence tomography显示文摘 | Baikoff G Lutun E Ferraz C | 2004 | J Cata- ract Refract Surg2004，30，： | 1 |
| 17 | Effect of sonic and ultrasonic retrograde cavity preparation on the integrity of root apices of freshly extracted human teeth: scanning electron microscopy analysis显示文摘 | Gondim E Jr Gomes BP Ferraz CC | 2002 | J Endod2002，28，9： | 1 |
| 18 | Histological evolution of hepatitis C virus infection after renal transplantation显示文摘 | Silvia Naomi Oliveira Uehara Christini Takemi Emori Patrícia da Silva Fucuta Pereira Renata M. Perez José Osmar Medina Pestana Valéria Pereira Lanzoni Ivonete Sandra Souza e Silva Antonio Eduardo Benedito Silva Maria Lucia Cardoso Gomes Ferraz | 2012 | Clin Transplant2012，，6： | 1 |
| 19 | Evaluation of the surface treatment effect on the anticorrosive performance of paint systems on steel显示文摘 | C I ELSNER E CAVALCANTI O FERRAZ A R DI SARLI | 2003 | Progress in Organic Coatings2003，，48： | 1 |
| 20 | Modulation for three-phase transformer-less z-source inverter to reduce leakage currents in photovohaic sys- tems 显示文摘 | F Bradaschia M C Cavalcanti P E P Ferraz | 2011 | IEEE Transactions on Industrial Electronics2011，58，12： | 1 |
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