Dissertations / Theses on the topic 'Ulcere gastroduodenal'
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AUCOUTURIER, JEAN-PAUL. "Quels sont les ulceres qui saignent ? etude tranversale d'une serie hospitaliere de 310 patients consecutifs ayant un ulcere gastrique ou duodenal." Reims, 1989. http://www.theses.fr/1989REIMM087.
Full textMinault, Sophie. "Incidence de l'ulcere gastrique et duodenal sur une base de population urbaine : bilan d'un an d'enregistrement sur la commune de reims en 1988." Reims, 1989. http://www.theses.fr/1989REIMM080.
Full textCABIANCA, ROCHE BEATRICE. "Campylobacter pylori et ulcerations gastro-duodenales chez le jeune adulte : a propos de 45 observations." Bordeaux 2, 1988. http://www.theses.fr/1988BOR25312.
Full textSimon, Jean-Philippe. "Etude prospective de la prevalence de campylobacter pylori apres intervention pour ulcere gastroduodenal." Nancy 1, 1988. http://www.theses.fr/1988NAN11004.
Full textRoux, Philippe. "Hemostase endoscopique des ulceres gastro-duodenaux : a propos d'une experimentation animale." Clermont-Ferrand 1, 1989. http://www.theses.fr/1989CLF13817.
Full textKARAM, RAJA. "Perforation en peritoine libre d'un ulcere du collet d'une hernie hiatale : a propos d'une observation." Angers, 1988. http://www.theses.fr/1988ANGE1032.
Full textGEORGEAC, CONSTANTIN. "Etude du traitement chirurgical des ulceres gastro-duodenaux hemorragiques au c. H. U. D'angers." Angers, 1991. http://www.theses.fr/1991ANGE1021.
Full textPEROUX, JEAN-LUC. "Helicobacter pylori et pathologie gastroduodenale en nouvelle-caledonie." Nice, 1992. http://www.theses.fr/1992NICE6551.
Full textLASBASSES, CLAUDINE. "Prevention des ulceres gastro-duodenaux de stress : activite comparee du sucralfate et de la cimetidine : a propos de quatre-vingt-dix-sept cas dans un service de reanimation polyvalente." Bordeaux 2, 1988. http://www.theses.fr/1988BOR25165.
Full textRUDELLI, ALAIN. "Helicobacter pylori, gastrite et maladie ulcereuse chez l'adulte jeune." Amiens, 1991. http://www.theses.fr/1991AMIEM059.
Full textCHAKHTOURA, FADI. "Helicobacter pylori : resultats de deux etudes epidemiologiques prospectives realisees a angers et en polynesie francaise." Angers, 1990. http://www.theses.fr/1990ANGE1033.
Full textRigo, Carole. "Aspect épidémiologique et prise en charge de 40 hémorragies digestives hautes admises en réanimation au centre hospitalier de Sète." Montpellier 1, 1993. http://www.theses.fr/1993MON11201.
Full textButtigieg, Raymond. "Comparaison jeûne versus alimentation précoce dans l'évolution immédiate d'une hémorragie par ulcère gastroduodénal." Montpellier 1, 1989. http://www.theses.fr/1989MON11075.
Full textBoublil, Laurence Yae͏̈l. "Maladie ulcéreuse : physiopathologie, traitements ; rôle d'hélicobacter pylori." Paris 5, 1998. http://www.theses.fr/1998PA05P006.
Full textPoquet, Sandrine. "Un nouvel inhibiteur de la pompe à protons : le prantoprazole." Bordeaux 2, 1998. http://www.theses.fr/1998BOR2P047.
Full textJebbari, Mostafa. "Les inhibiteurs de la pompe à protons, l'ulcère gastroduodénal à l'heure de l'Helicobacter Pylori." Bordeaux 2, 1998. http://www.theses.fr/1998BOR2P025.
Full text朱建民 and Kent-man Chu. "Helicobacter pylori infection and gastroduodenal ulcer disease." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B23685426.
Full textChu, Kent-man. "Helicobacter pylori infection and gastroduodenal ulcer disease." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23636555.
Full textSassaki, Ligia Yukie [UNESP]. "Preditores de recidiva hemorrágica ou óbito na hemorragia digestiva alta por úlcera péptica ou lesão aguda da mucosa gastroduodenal." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/102621.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A Hemorragia Digestiva Alta (HDA) é uma das desordens digestivas mais comumente diagnosticadas no mundo. As principais causas são a úlcera peptica gastroduodenal (UPGD) e a lesão aguda da mucosa gastroduodenal (LAMGD). Apesar dos avanços tecnológicos ocorridos nas últimas décadas, não se observou um declínio das taxas de mortalidade, que variam entre 11% e 33%. Esforços consideráveis tem sido realizados para a identificação precoce dos preditores de mau prognóstico, possibilitando à equipe médica a identificação dos grupos de alto risco e, com isso, uma intervenção mais agressiva e precoce. Análise comparativa dos preditores de recidiva hemorrágica ou óbito nos pacientes com HDA por UPGD ou LAMGD e análise de sobrevida dos grupos. Análise retrospectiva dos pacientes adultos com HDA por UPGD ou LAMGD submetidos a endoscopia digestiva alta (EDA) no período de jan/01 a dez/04 no HC da Faculdade de Medicina de Botucatu - UNESP. Critérios de inclusao: pacientes com HDA por UPGD ou LAMGD submetidos à EDA. Critérios de exclusão: HDA de outra etiologia. Análise estatística: testes de associação (Qui- Quadrado e teste exato de Fisher), testes de comparação entre os grupos, regressão logística múltipla, teste de Log Rank e regressão de Cox. 255 casas de HDA, sendo 57 por LAMGD e 198 por UPGD. Os grupos foram homogêneos com relação à idade, gênero, uso de anti-inflamatórios não esteroides (AINES), presença de comorbidades, níveis de hematócrito e hemoglobina e índices de recidiva hemorragica e óbito. No grupo com LAMGD,a idade media foi 60,4 anos (±18,7) e 64% dos doentes eram homens. O uso de AINES foi relatado por 46% dos doentes e 58% apresentavam comorbidades. Recidiva hemorrágica ocorreu em 3,5% dos pacientes e óbito em 10%. O preditor de ressangramento foi a necessidade de grande volume de transfusão sanguínea (OR: 2,03; IC:1,07-3,83)...
The upper gastrointestinal bleeding (UGIB) is one of the most commonly diagnosed digestive disorders in the world. The main causes are the peptic ulcer disease (PUD) and erosive disease. Despite technological advances occurring in recent decades there was not a decline in mortality rates, ranging between 11% and 33%. Considerable efforts have been made to identify early predictors of poor prognosis, allowing the medical team to identify high risk patients and, thus, a more aggressive and early intervention. Comparative analysis of predictors of rebleeding or death in patients with UGIB by PUD or erosive disease and analysis of survival of groups. Retrospective analysis of adult patients with UGIB by PUD or erosive disease underwent endoscopy from January 2001 to December 2004 in the Botucatu Medical School - UNESP. Inclusion criteria: patients with UGIB by PUD or erosive disease underwent endoscopy. Exclusion Criteria: UGIB by another etiology. Statistical analysis: chisquare and Fisher exact test, tests for comparison between groups, multivariate logistic regression models, Log Rank test and Cox proportional hazards regression. 255 cases of UGIB, being 57 by erosive disease and 198 by PUD. The groups were homogeneous with respect to age, gender, use of nonsteroidal anti-inflammatory drugs (NSAIDS)... Complete abstract click electronic access below)
Pacheco, Alline Roberta. "Implicação de genes da zona de plasticidade e da ilha de patogenicidade cag (PAIcag) de Helicobacter pylori no desenvolvimento de doenças gastroduodenais." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317031.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Helicobacter pylori é um bacilo Gram-negativo, espiralado, microaerófilo, e flagelado, incluído na família Helicobacteraceae. Essa bactéria infecta cronicamente a mucosa gastroduodenal de uma grande parcela da população mundial. A infecção por H. pylori está associada ao desenvolvimento de diversas doenças gastroduodenais em humanos, entre elas a gastrite, a úlcera péptica (PUD) e seus subtipos, úlcera gástrica (GU) e duodenal (DU), e o adenocarcinoma gástrico. Embora a porcentagem de infectados seja alta, podendo chegar a 90% nos países em desenvolvimento como o Brasil, somente uma pequena parcela dos indivíduos infectados desenvolve patologias graves. O desenvolvimento de doenças gástricas em indivíduos infectados por H. pylori parece ser o resultado da interação entre características do hospedeiro, influências ambientais e fatores de virulência produzidos pela bactéria. Muitos fatores de virulência prováveis, que contribuem para a patogênese, tem sido identificados em H. pylori, dentre os quais temos os genes da Ilha de Patogenicidade cag (PAIcag), e genes da zona de plasticidade de H. pylori. Embora sabe-se que muitos dos fatores de virulência descritos (cagA, cagE, vacA) estejam associados, universalmente, a um aumento no risco de desenvolvimento de quadros clínicos graves como úlcera péptica e câncer gástrico, nenhum deles pôde ser ligado a uma doença específica causada pela infecção persistente por H. pylori, e portanto ainda não foi descrito um gene marcador universal para uma doença resultante da infecção por essa bactéria. Dados da literatura mostram uma associação entre o gene cagT da PAIcag e o desenvolvimento de PUD. Um trabalho recente descreveu o locus dupA e sua associação com o desenvolvimento de DU, e dupA foi sugerido como marcador universal para DU. Neste trabalho, investigou-se a presença dos genes virB11 e cagT, localizados na PAIcag, e dos genes jhp917 e jhp918, integrantes do locus dupA encontrado zona de plasticidade de H.pylori, em isolados brasileiros dessa bactéria. Além disso, investigou-se uma possível associação entre tais genes e algumas doenças decorrentes da infecção por H. pylori, tais como a gastrite, PUD, GU, DU e a doença do refluxo gastroesofágico (GERD), na tentativa de encontrar um gene marcador para alguma dessas doenças. Nossos resultados mostram que o gene cagT foi associado com PUD; o gene virB11 foi detectado em quase todas as amostras; o locus dupA não foi associado a DU ou nenhuma outra doença gastroduodenal. Dessa forma, nossos resultados sugerem que o gene cagT pode ser usado como marcador para o desenvolvimento de PUD no Estado de São Paulo, Brasil; o gene virB11 pode representar um gene de virulência essencial para a patogênese da infecção causada por H. pylori no desenvolvimento de gastrite, PUD e GERD; o locus dupA não é um marcador universal para o desenvolvimento de DU
Abstract: Helicobacter pylori is a Gram-negative, spiral-shaped, flagellated, micro-aerophilic bacterium, included in the Helicobacteraceae family, which infects the human stomach cronically. H. pylori infection has a worldwide distribution and is associated with the development of several gastroduodenal diseases, such as gastritis, peptic ulcer disease (PUD) and its subtypes, gastric ulcer (GU) and duodenal ulcer (DU), and gastric adenocarcinomas. The number of infected individuals are high but only a minority of them will develop serious gastroduodenal diseases. Disease outcome depends on many factors, including host physiology, environmental influences and bacterial genotype. Although a number of putative virulence factors had been reported (cagA, cagE and vacA) for H. pylori, their presence has tipically been associated with an increased risk of both gastric cancer and peptic ulcer disease, and none can be clearly linked to one specific H. pylori related-disease. So the identification of a disease-specific H. pylori virulence factors predictive of the outcome of infection remains unachieved. Several of the H. pylori putative virulence genes that may play a role in its pathogenicity have been identified, many of them located in the cag pathogenicity island (PAIcag) and in the plasticity zone of the H. pylori genome. Data from the literature shows an association between cagT and PUD development, as well as dupA and DU. The latter has been suggested as an universal marker for the development of duodenal ulcers. In this work, we investigated the presence of virB11 and cagT, located in the left half of PAIcag, and the genes jhp917-jhp918, components of the dupA locus, which is located in the plasticity zone region of H. pylori, in brazilian isolates. In addition, we investigated a possible association between these genes and some H. pylori relateddiseases, such as gastritis, PUD, GU, DU and gastroesophageal-reflux (GERD), in an attempt to find a gene marker for a clinical outcome resulted from H. pylori infection. The cagT gene was associated with PUD; virB11 gene was detected in nearly all the samples; dupA locus was not associated with development of DU neither any gastroduodenal disease. In this way, our results suggest that cagT can be used as a marker for the developmentof PUD in State of São Paulo, Brazil; virB11 can be an essential virulence gene for H. pylori pathogenesis on the development of gastritis, PUD and GERD; dupA locus is not an universal marker for the development of DU
Mestrado
Microbiologia
Mestre em Genética e Biologia Molecular
Huamanguillas, Paravecino Elvis Joe. "Tratamiento quirúrgico de la úlcera gastroduodenal complicada. Servicio de emergencia del Hospital Nacional Dos de Mayo, durante el 2007-2011." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2014. https://hdl.handle.net/20.500.12672/12005.
Full textEl documento digital no refiere asesor
Describe el comportamiento de la úlcera Gastroduodenal complicada y el tratamiento seguido en el servicio de emergencia. Se realizó un estudio observacional, transversal de casos. Se revisaron 46 historias clínicas de pacientes que ingresaron al servicio de Emergencia de Cirugía General del Hospital Nacional Dos de Mayo que fueron operados por úlcera gastroduodenal complicada. Durante el periodo comprendido entre los años 2007 – 2011. El 26.1 % fueron mujeres y el 73.9 % fueron varones. La media de la edad global de los pacientes fue de 51.1+/-16.4 años, con una mínima de 20 años y una máxima de 86 años. Los antecedentes de mayor frecuencia fueron el consumo de alcohol (15.2 %), seguido de consumo de tabaco (10.9 %) y uso de AINES (8.7 %). Todos los pacientes tuvieron dolor abdominal, siendo más frecuente el dolor en epigastrio con vómitos (26.1 %). Hubo compromiso hemodinámico en el 21.7 % de los pacientes con ulcera gastroduodenal. Hubo mayor frecuencia de neumoperitoneo (50 %), con el estudio radiológico. El diagnóstico preoperatorio de mayor frecuencia fue la perforación de víscera hueca (50 %). Hubo perforación gástrica en el 54.3 % de los casos. El lugar de perforación de mayor frecuencia fue la zona del antro cara anterior (41.3 %). El 21.7 % de los pacientes tuvo diagnostico postoperatorio de hemorragia digestiva alta (21.7 %). Los lugares de hemorragia de mayor frecuencia fue la curvatura menor del estomago (6.5 %) y la primera porción del duodeno pared posterior (6.5 %). La cirugía realizada con mayor frecuencia por perforación fue la rafia gástrica + parche de epiplón (32.6 %), seguido de rafia gástrica (19.6 %). La cirugía de mayor frecuencia realizada por hemorragia fue la ulcerorrafia (21.7 %). Las complicaciones postoperatorias de mayor frecuencia fueron el seroma (8.7 %), y la infección del sitio operatorio (6.5 %). La frecuencia de mortalidad de la muestra estudiada fue del 13%. Hubo una mayor frecuencia de perforación, seguida de hemorragia realizándose rafia más omentoplastía y ulcerorrafia respectivamente. Los pacientes con úlcera Gastroduodenal complicada se caracterizaron por ser varones, con una edad promedio de 50 años, con antecedentes de alcohol, tabaco, AINES; que ingresaron por dolor en epigastrio. La edad y estancia hospitalaria estuvo asociado a morbimortalidad (P<0.05). El tiempo quirúrgico estuvo asociados a mortalidad (P<0.05).
Trabajo académico
McKay, Allison E. "Gastroduodenal motility during the development of experimental duodenal ulceration: The effects of enteric transmitters and anti-ulcer drugs." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6809.
Full textMontes, Teves Pedro, Ventura Sonia Salazar, and Salgado Eduardo Monge. "Características de las úlceras gastroduodenales en pacientes con biopsia negativa para Helicobacter pylori." Sociedad Argentina de Gastroenterología, 2014. http://hdl.handle.net/10757/314561.
Full textRevisión por pares
Ledur, Gabriela Reis. "Frequência e intensidade de lesões gastroduodenais em cães com mastocitoma cutâneo." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/122438.
Full textParaneoplastic syndrome is defined as a set of signs and symptoms that are not related to the local effect of the primary tumor or its metastases. Gastrointestinal ulceration is the most common sign attributed to mast cell tumor’s paraneoplastic syndrome in dogs. In mastocytoma, release of histamine, heparin, and other bioactive substances by the neoplastic mast cells can lead to increased systemic action of these substances and induce gastrointestinal disturbances. This study aimed to evaluate the occurrence of gastroduodenal lesions in dogs with cutaneous mast cell tumor at the time of diagnosis and correlate them to the clinical presentation of the disease, tumor’s macroscopic aspects, neoplasic prognostic markers, and plasmatic histamine values. We evaluated 41 dogs with cutaneous mast cell tumor diagnosed at the oncology service of the Veterinary Hospital of the Federal University of Rio Grande do Sul (UFRGS-HCV). After clinical examination, as the animals underwent surgery to remove the tumor and endoscopy to evaluate the esophagus, stomach and proximal duodenum was performed Presence and severity of clinical signs, neoplasms macroscopic characteristics, tumor size, number and location of neoplasic masses, tumor growth rate, presence of regional lymph node metastasis, histopathological classification, mitotic index, and plasmatic histamine concentration were determined and correlated with gastrodueodenal endoscopic findings. The macro and microscopic analyses of the gastric and duodenal mucosa showed no lesions compatible with ulceration in any of the pacients. The occurrence of gastrointestinal clinical signs was observed in 41.5% of cases and inflammatory patterns, suggestive of gastritis were evidenced in both endoscopic and histopathological examination; however, its correlation with the presence of mast cell tumor could not be established. Therefore, in this population, gastroduodenal lesions observed were considered mild at diagnosis and had no relation with the variables analyzed, suggesting that the heterogeneity of the population may have contributed to the results or that other factors may influence the degranulation of mast cells neoplastic.
Sassaki, Lígia Yukie. "Preditores de recidiva hemorrágica ou óbito na hemorragia digestiva alta por úlcera péptica ou lesão aguda da mucosa gastroduodenal /." Botucatu : [s.n.], 2009. http://hdl.handle.net/11449/102621.
Full textBanca: Pedro Achilles
Banca: Luiza Maria Filomena Romanello
Banca: José Luiz Pimenta Modena
Banca: Ciro Garcia Montes
Resumo: A Hemorragia Digestiva Alta (HDA) é uma das desordens digestivas mais comumente diagnosticadas no mundo. As principais causas são a úlcera peptica gastroduodenal (UPGD) e a lesão aguda da mucosa gastroduodenal (LAMGD). Apesar dos avanços tecnológicos ocorridos nas últimas décadas, não se observou um declínio das taxas de mortalidade, que variam entre 11% e 33%. Esforços consideráveis tem sido realizados para a identificação precoce dos preditores de mau prognóstico, possibilitando à equipe médica a identificação dos grupos de alto risco e, com isso, uma intervenção mais agressiva e precoce. Análise comparativa dos preditores de recidiva hemorrágica ou óbito nos pacientes com HDA por UPGD ou LAMGD e análise de sobrevida dos grupos. Análise retrospectiva dos pacientes adultos com HDA por UPGD ou LAMGD submetidos a endoscopia digestiva alta (EDA) no período de jan/01 a dez/04 no HC da Faculdade de Medicina de Botucatu - UNESP. Critérios de inclusao: pacientes com HDA por UPGD ou LAMGD submetidos à EDA. Critérios de exclusão: HDA de outra etiologia. Análise estatística: testes de associação (Qui- Quadrado e teste exato de Fisher), testes de comparação entre os grupos, regressão logística múltipla, teste de Log Rank e regressão de Cox. 255 casas de HDA, sendo 57 por LAMGD e 198 por UPGD. Os grupos foram homogêneos com relação à idade, gênero, uso de anti-inflamatórios não esteroides (AINES), presença de comorbidades, níveis de hematócrito e hemoglobina e índices de recidiva hemorragica e óbito. No grupo com LAMGD,a idade media foi 60,4 anos (±18,7) e 64% dos doentes eram homens. O uso de AINES foi relatado por 46% dos doentes e 58% apresentavam comorbidades. Recidiva hemorrágica ocorreu em 3,5% dos pacientes e óbito em 10%. O preditor de ressangramento foi a necessidade de grande volume de transfusão sanguínea (OR: 2,03; IC:1,07-3,83)... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The upper gastrointestinal bleeding (UGIB) is one of the most commonly diagnosed digestive disorders in the world. The main causes are the peptic ulcer disease (PUD) and erosive disease. Despite technological advances occurring in recent decades there was not a decline in mortality rates, ranging between 11% and 33%. Considerable efforts have been made to identify early predictors of poor prognosis, allowing the medical team to identify high risk patients and, thus, a more aggressive and early intervention. Comparative analysis of predictors of rebleeding or death in patients with UGIB by PUD or erosive disease and analysis of survival of groups. Retrospective analysis of adult patients with UGIB by PUD or erosive disease underwent endoscopy from January 2001 to December 2004 in the Botucatu Medical School - UNESP. Inclusion criteria: patients with UGIB by PUD or erosive disease underwent endoscopy. Exclusion Criteria: UGIB by another etiology. Statistical analysis: chisquare and Fisher exact test, tests for comparison between groups, multivariate logistic regression models, Log Rank test and Cox proportional hazards regression. 255 cases of UGIB, being 57 by erosive disease and 198 by PUD. The groups were homogeneous with respect to age, gender, use of nonsteroidal anti-inflammatory drugs (NSAIDS)... Complete abstract click electronic access below)
Doutor
Šilkauskaitė, Aušra. "Šunų gastroduodenalinės opos." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140305_135716-36101.
Full textThe main goal of this thesis was to determine and evaluate the frequency, ethiology, clinical symptoms, the most effective diagnostic and treatment methods for gastroduodenal ulcers in dogs. To achieve this goal at first we analized the frequency of gastrointestinal diseases and the frequency of gastroduodenal ulcers in dogs. Secondly, we statistically analized the most expressed clinical symptoms, the characteristic morphological and biochemical abnormalities of blood in dogs with gastroduodenal ulcers. Finally, we determined the most effective diagnostic and treatment methods. We determined that during 2012 years 16,66 % of all dogs diseases were gastrointestinal diseases (3,04% gastric ulcers, duodenal ulcers were not determined). The most expressed clinical symptoms for patients with gastroduodenal ulcers were vomiting (90,48%) and diarrhea (57,14%). Blood morphology showed high percentage of neutrophils (79,31 ± 0,9875 %), other morphological parameters were in physiologically normal range. Blood biochemistry showed little rise in bilirubin (8,59 ± 0,9549 µmol/l), and low ALT (67,03 ± 9,7915 U/l). We determined that the endoscopic method is the most effective method in diagnosing gastroduodenal ulcers. 90,47 % of gastroduodenal ulcers were diagnosed by using the endoscope. The most frequent treatment methods for gastroduodenal ulcers were gastro-protectors (90,48 % patients), gastroprokintetics (80,95 % patients), anti-acids (66,67 % patients), and diet (52,38 %... [to full text]
Zeitoun, Jean-David Hagège Hervé. "Évaluation des facteurs pronostiques des hémorragies digestives hautes d'origine ulcéreuse." Créteil : Université de Paris-Val-de-Marne, 2009. http://doxa.scd.univ-paris12.fr:8080/theses-npd/th0511867.pdf.
Full textThèse uniquement consultable au sein de l'université Paris 12 (Intranet). Titre provenant de l'écran-titre. Bibliogr. f. 40-45.
Batista, Carlos Alexandre Gonçalves. ""Estudo clínico e endoscópico em pacientes com úlcera péptica gastroduodenal após 1 ano de erradicação do Helicobater pylori. Avaliação da relação entre o surgimento da esofagite erosiva e a cepa do Helicobacter pylori erradicado"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5147/tde-20092006-134022/.
Full textNowadays, there are many directrixes in literature as to the influence of Helicobacter pylori, in the Disease of Gastroesophagic reflux. Some authors believe that H. pylori could have a protective effect to the development of GERD, and others even conclude that the agent may be an aggravating factor in the disease. Many publications allert us to the development of symptoms of GERD, or even the esophagitis,in a reasonable percentage of erradicated patients by the triplicit scheme to treat H. pylori, and 10%, approximately, would have GERD. In fact, due to these doubts, a consensus has not been established yet to the importance of H. pylori in the GERDs etiopathogenic and its complications. The strains importance to the formation of esophagitis in patients submitted to erradication is another fact that has also been discussed. Maybe the most virulent ones, as the presence of pathogenical island(cagA) or some other vacuolating cytotoxin (vacA), would have a larger relation in the esophagitis prevention. Another important mechanism, pointed by many, to the formation of esophagitis in erradicated patients would be the elevation of Body Mass Index in this group of eradicated patients associated or not to the presence of hiatal hernia and justified by a better quality of life due to symptoms improvement after erradication. In our studies, 148 patients with active or healed peptic ulcer received triplicit scheme of erradication to the Helicobacter pylori and were submitted to endoscopic exams and histopathologic test of gathered samples by body and antro biopsies, respiratory test with carbon 14 and ureasis, before and after treatment. We have done the agent genotyping, through the PCR, separating samples of body and antro, to determine the agent Cepas. The patients have been followed ambulatorially for a year and evaluated as to the improvement or worsening of the symptoms related to GERD (pyrosis) and symptoms considered non-specific as epigastric pain; we have also tried to quantify the gain or loss of Body Mass Index. We found 28 patients(18.9%) with endoscopic erosive esophagitis (24 degree A and 4 degree B of Los Angeles) after agents treatment. In this group, only three patients who had no symptoms developed pyrosis (2%). Most of the patients benefitted from treatment showing that 69 (46.6%) presented improvement in pyrosis and another great majority improved non-specific symptoms. In 18 ulcered patients with esophagitis, the body analysis fragments was positive cagA (64.3%)and in antro samples of 21 were positive cagA (75%). As in the general group, the vacuolizing cepas slb/ml and slb were, respectivelly, the most found in the endoscopic esophagitis group. There was a slight raise in the BMI in patients with and without esophagitis, and it is, statistically more meaningful in the 120 patients without esophagitis. Even though there was the appearance of endoscopic erosive esophagitis in a reasonable number of patients, the symptmology was not a determining factor, because many have got better after the treatment, and erradication was not important to determine the erosive esophagitis. It was not found any relation between the agent genotyping and the development of endoscopic esophagitis. The raise of BMI does not justify in our study the esophagitis in ulcered patients treated against H. pylori.
Höcker, Michael. "Differentielle Regulation von Schlüsselgenen der gastralen Säuresekretion durch Gastrin, oxidativen Stress und Helicobacter pylori." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2002. http://dx.doi.org/10.18452/13811.
Full textTranscriptional activation of the genes encoding histidine decarboxylase and chromogranin A represents a key mechanism of gastrin-dependent acid regulation and also appears to be involved in the pathogenesis of gastroduodenal ulcer disease. Our results for the first time identify the molecular mechanisms underlying gastrin-dependent activation of both genes, and define the transcription factors, regulatory DNA elements and signal transduction pathways involved in this process. Furthermore, transgenic studies confirmed the principle of gastrin-dependent transcriptional activation of the chromogranin A gene in vivo, and demonstrated neuroendocrine-specific expression of a 4.8kB-CgA promotor fragment. In addition, the pathobiological stimuli oxidative stress and H. pylori were molecularly characterized regarding their activating effects on the key gene of gastric histamine sythesis. These results provide potential mechanisms for the interaction of both stimuli with regulatory circuits of gastric acid secretion, and can probably contribute via definition of new molecular targets to the development of inovative therapeutic strategies.
Dowdle, Sara-Anne Margaret. "The prevalence of subclinical gastroduodenal ulceration in dachshunds with intervertebral disc prolapse." 2003. http://upetd.up.ac.za/thesis/available/etd-03302005-094123/.
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