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	Provedor de dados Infoteca-e (1) Autor BRAMMER, S. P. (1) BRASILEIRO-VIDAL, A. C. (1) OLIVEIRA, A. R. de (1) POERSCH, L. B. (1) VASCONCELOS, S. (1) Palavra-chave Melhoramento Genético Vegetal (1) Trigo. (1) Tipo do documento Comunicado Técnico (INFOTECA-E) (1) Ano 2009 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 48 Primeira ... 1 2 3 ... Última Relationship of IL-1 and TNF-α polymorphisms with Helicobacter pylori in gastric diseases in a Brazilian population BJMBR Santos,J.C.; Ladeira,M.S.P.; Pedrazzoli Jr,J.; Ribeiro,M.L.. It is well known that the risk of development of gastric cancer (GC) in Helicobacter pylori-infected patients depends on several factors. Thus, the aim of this study was to investigate the effect of proinflammatory cytokine gene polymorphisms for IL-1β, IL-1RN and TNF-α on the development of GC in a Brazilian population. A total of 202 biopsies obtained from Brazilian patients with chronic gastritis and GC were included in the study. Infection with H. pylori cagA+ was determined by the polymerase chain reaction (PCR) as previously described. IL-1β, IL-1RN and TNF-α polymorphism genotyping was performed by restriction fragment length polymorphism PCR. Associations between gene polymorphisms, clinical diseases and virulence markers were evaluated using... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chronic gastritis; Gastric cancer; Polymorphisms; Helicobacter pylori; Interleukins; IL-1β; IL-1RN; TNF-α. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000900004 Serodiagnosis of Helicobacter pylori infection by Cobas Core ELISA in adults from Minas Gerais, Brazil BJMBR Rocha,G.A.; Oliveira,A.M.R.; Queiroz,D.M.M.; Mendes,E.N.; Moura,S.B.; Oliveira,C.A.; Ferrari,T.C.A.. We evaluated the accuracy of a 2nd generation ELISA to detect Helicobacter pylori infection in adults from a developing country in view of variations in sensitivity and specificity reported for different populations. We studied 97 non-consecutive patients who underwent endoscopy for evaluation of dispeptic symptoms. The presence of H. pylori was determined in antral biopsy specimens by culture, by the preformed urease test and in carbolfuchsin-stained smears. Patients were considered to be H. pylori positive if at least two of the three tests presented a positive result or if the culture was positive, and negative if the three tests were negative. Sixty-five adults (31 with peptic ulcer) were H. pylori positive and 32 adults were H. pylori negative.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helicobacter pylori; Serodiagnosis; ELISA. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001000005 The effect of CagA status on response to Helicobacter pylori eradication therapy in Western Turkey BJMBR Saruç,M.; Goksel,G.; Ozkaya,S.; Guclu,F.; Ozbakkaloglu,B.; Yuceyar,H.. If cytotoxin-associated gene A (CagA) status affects the response rates of therapy, then it may be possible to predict Helicobacter pylori eradication rates. We aimed to evaluate the response to eradication treatment of H. pylori infection in CagA-positive and CagA-negative patients. A total of 184 patients (93 males, 91 females, mean age 42.6 ± 12.8 years) with H. pylori-positive chronic gastritis were studied. Subjects underwent a gastroscopy and biopsy specimens were taken from the gastric antrum, body, and fundus. Before the eradication therapy was given all patients were tested for CagA, TNF-alpha and gastrin levels. They were then prescribed lansoprazole (30 mg bid), clarithromycin (500 mg bid), and amoxicillin (1.0 mg bid) for one week. On the 8th... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helicobacter pylori; Eradication; Cytotoxin-associated gene A; CagA. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100010 The efficacy of moxifloxacin-based triple therapy in treatment of Helicobacter pylori infection: a systematic review and meta-analysis of randomized clinical trials BJMBR Zhang,G.; Zou,J.; Liu,F.; Bao,Z.; Dong,F.; Huang,Y.; Yin,S.. Recent evidence shows that moxifloxacin could exert an antimicrobial effect against Helicobacter pylori in both in vitroand in vivo models. To systematically evaluate whether moxifloxacin-containing triple therapy could improve eradication rates and reduce side effects in first-line or second-line anti-H. pyloritreatment, eligible articles were identified by searches of electronic databases. We included all randomized trials comparing moxifloxacin-based triple therapy with standard triple or quadruple therapy during H. pylori eradication treatment. Statistical analysis was performed with Review Manager 5.0.10. Subanalysis/sensitivity analysis was also performed. We identified seven randomized trials (n=1263). Pooled H. pylori eradication rates were 79.03%... Tipo: Info:eu-repo/semantics/article Palavras-chave: Moxifloxacin; Helicobacter pylori; Eradication rate; Side effects; Meta-analysis. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000700607 tlpA gene expression is required for arginine and bicarbonate chemotaxis in Helicobacter pylori Biol. Res. Cerda,Oscar A; Núñez-Villena,Felipe; Soto,Sarita E; Ugalde,José Manuel; López-Solís,Remigio; Toledo,Héctor. About half of the human population is infected with Helicobacter pylori, a bacterium causing gastritis, peptic ulcer and progression to gastric cancer. Chemotaxis and flagellar motility are required for colonization and persistence of H. pylori in the gastric mucus layer. It is not completely clear which chemical gradients are used by H. pylori to maintain its position. TlpA, a chemotaxis receptor for arginine/ bicarbonate, has been identified. This study aimed to find out whether tlpA gene expression is required for the chemotactic response to arginine/bicarbonate. Wild-type motile H. pylori ATCC 700392 and H. pylori ATCC 43504, a strain having an interrupted tlpA gene, were used. Also, a tlpA-knockout mutant of H. pylori 700392 (H. pylori 700-tlpA::cat)... Tipo: Journal article Palavras-chave: TlpA; Chemotaxis; Helicobacter pylori; Arginine; Bicarbonate. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000300009 To evaluate of the effect of adding licorice to the standard treatment regimen of Helicobacter pylori BJID Hajiaghamohammadi,Ali Akbar; Zargar,Ali; Oveisi,Sonia; Samimi,Rasoul; Reisian,Sedigheh. ABSTRACT Objective: The aim of this study was to evaluate the effect of licorice in H. pylori eradication in patients suffering from dyspepsia either with peptic ulcer disease (PUD) or non-ulcer dyspepsia (NUD) in comparison to the clarithromycin-based standard triple regimen. Methods: In this randomized controlled clinical trial, 120 patients who had positive rapid urease test were included and assigned to two treatment groups: control group that received a clarithromycin-based triple regimen, and study group that received licorice in addition to the clarithromycin-based regimen for two weeks. H. pylori eradication was assessed six weeks after therapy. Data was analyzed by chi-square and t-test with SPSS 16 software. Results: Mean ages and SD were 38.8... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helicobacter pylori; Licorice; Dyspepsia; Peptic ulcer. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000600534 Ureases display biological effects independent of enzymatic activity: Is there a connection to diseases caused by urease-producing bacteria? BJMBR Olivera-Severo,D.; Wassermann,G.E.; Carlini,C.R.. Ureases are enzymes from plants, fungi and bacteria that catalyze the hydrolysis of urea to form ammonia and carbon dioxide. While fungal and plant ureases are homo-oligomers of 90-kDa subunits, bacterial ureases are multimers of two or three subunit complexes. We showed that some isoforms of jack bean urease, canatoxin and the classical urease, bind to glycoconjugates and induce platelet aggregation. Canatoxin also promotes release of histamine from mast cells, insulin from pancreatic cells and neurotransmitters from brain synaptosomes. In vivo it induces rat paw edema and neutrophil chemotaxis. These effects are independent of ureolytic activity and require activation of eicosanoid metabolism and calcium channels. Helicobacter pylori, a Gram-negative... Tipo: Info:eu-repo/semantics/article Palavras-chave: Urease; Canatoxin; Helicobacter pylori; Inflammation; Neutrophils; Eicosanoids. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000700002 Virulence factors and antibiotic resistance of Helicobacter pylori isolated from raw milk and unpasteurized dairy products in Iran J. Venom. Anim. Toxins incl. Trop. Dis. Mousavi,Soolmaz; Dehkordi,Farhad Safarpoor; Rahimi,and Ebrahim. Background Despite the high importance of Helicobacter pylori, the origin and transmission of this bacterium has not been clearly determined. According to controversial theories and results of previous studies, animal source foods – especially milk – play an important role in the transmission of H. pylori to humans. The aim of the present study was to determine the distribution of vacA, cagA,iceA and oipA virulence factors inH. pylori strains isolated from milk and dairy products and study their antimicrobial resistance properties.Methods A total of 520 raw milk and 400 traditional dairy product samples were cultured and tested. Those that were H. pylori-positive were analyzed for the presence of vacA,cagA, iceA and oipAvirulence factors. Antimicrobial... Tipo: Info:eu-repo/semantics/article Palavras-chave: Helicobacter pylori; Virulence factors; Antibiotic resistance properties; Milk; Dairy products; Iran. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992014000200341 Registros recuperados: 48 Primeira ... 1 2 3 ... Última

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