338 resultados para Intestinos Doenças inflamatórias Teses

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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Conselho Nacional de Desenvolvimento Cientfico e Tecnolgico (CNPq)

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Context - Several paradoxical cases of infliximab-induced or-exacerbated psoriatic lesions have been described in the recent years. There is disagreement regarding the need to discontinue infliximab in order to achieve the resolution of these adverse cutaneous reactions specifically in inflammatory bowel disease (IBD) patients. Objective - To systematically review the literature to collect information on IBD patients that showed this adverse cutaneous reaction, focusing mainly on the therapeutic approach. Methods - A systematic literature review was performed utilizing Medline, Embase, SciELO and Lilacs databases. Published studies were identified, reviewed and the data were extracted. Results - Thirty-four studies (69 IBD patients) met inclusion criteria for review. There was inconsistency in reporting of some clinical and therapeutic aspects. Most patients included had Crohn's disease (89.86%), was female (47.83%), had an average age of 27.11 years, and no reported history of psoriasis (84.05%). The patients developed primarily plaque-type psoriasis (40.58%). There was complete remission of psoriatic lesions in 86.96% of IBD patients, existing differences in the therapeutic approaches; cessation of infliximab therapy led to resolution in 47.83% of cases and 43.48% of patients were able to continue infliximab therapy. Conclusion - As increasing numbers of IBD patients with psoriasis induced or exacerbated by infliximab, physicians should be aware of its clinical manifestations so that appropriate diagnosis and treatment are properly established. The decision whether to continue or discontinue infliximab should be individualized.

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The present invention relates to phthalimide derivatives of non-steroidal and/or TNF-+- modulating anti-inflammatory compounds as well as the process of obtaining the so-called derivatives, pharmaceutical compositions containing such derivatives and their uses, including use in the treatment of inflammatory diseases, especially those related to chronic inflammatory processes, such as rheumatoid arthritis and intestinal inflammatory diseases (for instance, Chron's disease) and the use of the referred to pharmaceutical compositions as antipyretic, analgesic and platelet antiaggregating medications.

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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)

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Ps-graduao em Fisiopatologia em Clnica Mdica - FMB

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Ps-graduao em Cincias Biolgicas (Farmacologia) - IBB

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Ps-graduao em Cincias Biolgicas (Farmacologia) - IBB

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Ps-graduao em Cincias Biolgicas (Farmacologia) - IBB

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Coordenao de Aperfeioamento de Pessoal de Nvel Superior (CAPES)

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Ps-graduao em Fisiopatologia em Clnica Mdica - FMB

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Inflammatory bowel disease (IBD) is a chronic and relapsing disease caused by exaggerated response of the immune system. It represents a significant health problem by limiting the quality of life and being the main risk factor for colorectal cancer. Despite of its importance, the high worldwide incidence and being the object of research for several decades, the etiology remains unknown. Studies indicates an interaction between genetic and environmental factors which together with the intestinal microbiota, leads to an uncontrolled immune response. One of the aggravating environmental factors often discussed is stress, as the daily life of the population in general is increasingly rushed. In order to demonstrate the influence of stress on IBD, this study aimed to standardize an experimental model of colitis induced by instillation of a trinitrobenzene sulfonic acid (TNBS) noninflammatory concentration plus exposure to stress that intensify the inflammation. Therefore, an experiment was done to determine what would be the noninflammatory concentration. In this step, four different concentrations of TNBS (1, 6, 12.5 or 40mg/ml) were tested and the lowest concentration capable of inducing a noninflammatory response in the gut was defined as 1 mg/ml. Then, a second experiment was performed which induced colitis and exposed the animals to restraint stress. The results, however, showed that this stimulus was not enough to exacerbate the damage caused by the 1 mg/ml concentration of TNBS in the colon. With some changes in the protocol, the third experiment associated cold and restraint, as well as changes on the day of euthanasia, which occurred immediately after the stress session. The results of myeloperoxidase activity measurement were unexpected due to the noninflammatory concentration of TNBS caused an intestinal inflammation similar to the concentration of 40 mg/ml. However, the results of glutathione quantification and the corticosterone ...

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O uso disseminado do suco de folhas jovens de trigo (Triticum aestivum L.) para diversos fins teraputicos foi proposto por Dra. Ann Wigmore h mais de 40 anos nos Estados Unidos e popularizado de tal forma que utilizado para o tratamento alternativo de doenças autoimunes e gastrointestinais, dentre outras. Baseado nessas informaes populares, o presente estudo teve como objetivo avaliar a composio qumica e a atividade anti-inflamatria intestinal do extrato aquoso de folhas jovens de trigo na fase aguda do modelo experimental de doena inflamatria intestinal induzida por TNBS (cido trinitrobenzenosulfnico) em ratos. Os animais foram tratados durante cinco dias antes da induo do processo inflamatrio, sendo testadas as doses de 100, 50, 25 e 5 mg/Kg e azatioprina como droga de referncia. Aps 48 horas da induo do processo inflamatrio, os animais foram mortos e seus clons extrados para a realizao dos estudos macroscpicos e bioqumicos. Paralelamente foi realizado um estudo para a caracterizao da composio qumica do extrato, atravs de testes para a determinao das principais classes de substncias presentes, bem como o doseamento de compostos fenlicos e atividade sequestradora de radicais livres. O estudo demonstrou que o extrato aquoso de folhas jovens de trigo a 5 mg/Kg apresentou uma tendncia em melhorar os parmetros macroscpicos e bioqumicos avaliados, porm sem diferenas estatsticas. A caracterizao fitoqumica do extrato mostrou que o suco de trigo uma fonte importante de compostos antioxidantes, os quais podem estar relacionados com a melhora no processo inflamatrio colnico

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A Doena Inflamatria Intestinal (DII) engloba um grupo de processos inflamatrios crnicos de causas no conhecidas. Duas formas clnicas da DII so reconhecidas atualmente: a Retocolite Ulcerativa (RU) e a Doena de Crohn (DC). Foram isoladas de 348 amostras, dos quais 17 foram diagnosticados com com DC, e 40 com RU. Os 41 restantes apresentavam outras patologias e compreenderam o grupo controle. Entre as amostras que apresentaram adeso positiva, 110 delas apresentaram padro de Adeso Agregativa (AA) e 19 apresentaram padro de Adeso Difusa (AD). A cepa, DII/013, apresentou o padro de adeso agregativo e invisibilidade mdia 18 vezes superior cepa da EIEC. Quando observada ao microscpio eletrnico, bactrias intracelulares foram detectadas na amostra. Assim, a maioria das amostras apresentaram padro de adeso agregativo, indicando juntamente com estudos anteriores, que esse padro teria uma possvel relao com a patogenicidade da bactria em relao a DII