Дисертації з теми "Ulcerative colitise"
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Rivière, Pauline Mayalen. "FMIcroorganisms as Triggers in Acute severe ulcerative Colitis and their influence on medical therapy efficacy : a multi-omics approach, the ITAC project." Electronic Thesis or Diss., Bordeaux, 2023. http://www.theses.fr/2023BORD0474.
Acute severe ulcerative colitis is a specific ulcerative colitis (UC) flare characterised by systemic inflammation on top of bloody diarrhoea, leading to a 20% risk of colectomy and 1% mortality risk. Little is known about acute severe ulcerative colitis pathophysiology. Microorganisms have been proposed as triggers for acute severe ulcerative colitis because of the similarity, most notably systemic inflammation, between this phenotype and infectious colitis. Moreover, gut microbiota are key players for protection against pathogens and in UC inflammation. We hypothesised that a dysfunctional gut microbiome, characterised by a lack of diversity and the loss of anti-inflammatory bacterial species, would allow the proliferation of a pathobiont in the colonic lumen eliciting a systemic inflammatory response in hosts with permissive gut mucosal immunity leading to an acute severe ulcerative colitis flare. The general objective of my study was to identify the microbiome component(s) and the host factors leading to acute severe ulcerative colitis. We had three specific aims: (i) to compare the gut microbiota of patients with acute severe ulcerative colitis compared to patients with a non-severe ulcerative colitis flare using 16S rRNA gene sequencing of stool samples and rectal biopsies. Patients with acute severeulcerative colitis displayed significant alterations in their gut microbiota, characterised by reduced alpha-diversity, an increased presence of Proteobacteria, particularly members of the Escherichia/Shigella genus, and a reduction in the abundance of Lachnospiraceae and Ruminococcaceae family members; (ii) to identify the cellular subtypes and pathways involved in gut mucosal inflammation in acute severe ulcerative colitis patients compared to non-severe ulcerative colitis patients by single-cell RNA-Seq of rectal biopsies. In severe cases, plasmablasts exhibited a distinct transcriptomic profile with increased IgG production, 2and a specific T cell population expressing IL26 was expanded compared to non-severe cases. Innate immune cells displayed a pro-inflammatory profile. Both T cells and innate immune cells indicated a pro-Th17 mucosal environment; (iii) to determine the host pathways mediating the systemic inflammatory outburst using whole blood RNA-Seq in acute severe ulcerative colitis patients compared to non-severe ulcerative colitis patients. We found no clear distinction between severe and non-severe cases and did not identify any pathways enriched with differentially expressed genes. This observation suggests that in acute severe ulcerative colitis, the systemic inflammation is less likely to be orchestrated by cytokines originating from circulating cells but rather from inflammatory cells located in the colonic mucosa. This multi-omics study contributes valuable insights into the pivotal cellular and bacterial components involved in the pathogenesis of acute severe ulcerative colitis. These findings have the potential to guide future clinical research, directing efforts toward microbiome modulation, targeted interventions on plasmablasts, or nuanced inhibition of the Th17/IL-23 axis
Maldaun, Daisy 1944. "Analise qualitativa dos aspectos emocionais e vivenciais de pacientes idosos portadores de retocolite ulcerativa inespecifica em atendimento ambulatorial." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/252522.
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação
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Resumo: Desde a Antiguidade, sabe-se, através dos registros da História, que sentimentos e emoções apresentam uma ressonância no corpo. No decorrer dos séculos, o avanço da medicina permitiu o conhecimento da existência de mecanismos através dos quais as emoções podem dar origem ao processo do adoecer. O objetivo deste estudo foi compreender os aspectos emocionais como a ansiedade, o medo e a raiva de pacientes com idade entre 51 e 74 anos portadores de Retocolite Ulcerativa Inespecífica (RCUI) - doença inflamatória intestinal de etiologia desconhecida, bem como viabilizar os resultados desta pesquisa a familiares e profissionais da saúde, numa tentativa de mostrar sua relevância no surgimento e evolução da doença. Como método de pesquisa, optou-se pelo Clínico-Qualitativo. Foram estudados oito (08) casos de pacientes portadores de RCUI, de ambos os sexos, com idades entre 51 e 74 anos. Como procedimento de investigação, foram realizadas entrevistas semidirigidas de questões abertas, levando em consideração a verbalização dos doentes em relação às mudanças ocorridas em suas vidas após o surgimento da doença. Quanto aos resultados, o referencial teórico utilizado para a sua interpretação foi baseado nos conceitos usuais da Psicologia Médica e da Medicina Psicossomática. e da Psicologia Compreensiva Explicativa e Fenomenológica de JASPERS,K. Considerou-se, após a avaliação dos aspectos emocionais desses pacientes através de seus depoimentos, que sua influência é relevante no desencadear e na evolução da RCUI. A psicoterapia, como um instrumento de ajuda e suporte ao tratamento clínico, deve colocar-se a serviço deste Ser doente e em prol da possibilidade de elaboração de uma nova forma de ele vivenciar a doença e seus conflitos, sejam quais forem os recursos de que ele dispõe para manifestá-los
Abstract: Ever since the early Ages, it is common knowledge that feelings and emotions resonate in the body. Throughout the centuries, the advance of medicine has brought to light the knowledge of existing mechanisms through which emotions can give rise to the process of getting sick. The objective of this study was to understand the emotional aspects, such as anxiety, fear and rage of patients aged between 51 and 74 with Unspecified Ulcerative Colitis, an inflammatory intestinal disease of unknown etiology. We also aim to make the results of the present study available to patients¿ family members and health professionals as a means to raise their awareness of the relevance of emotional aspects to the rise and evolution of the illness. The Method chosen to carry out the study was the Qualitative-Clinical Method; eight (08) patients of both sexes were studied. The investigative procedure consisted of semi-direct interviews of open questions; taking into consideration the patients¿ accounts on the changes occurred in their lives before and after the illness manifested itself. The theoretical reference point used for the interpretation of the results was based on the usual concepts of Medical Psychology and Psychosomatic Medicine and of the Comprehensible Explanatory Psychology and Phenomenology of JASPERS, K. Following the evaluation of the emotional aspects these patients mentioned in their testimonials, we concluded that they have great influence on the manifestation of the illness, and that psychotherapy, as an instrument of support for the clinical treatment, should be applied to offer them a new means of understanding the causes of their suffering in the search for a way to deal with the disease and the conflicts it brings along, regardless of which resources they may have available to do so
Mestrado
Gerontologia
Mestre em Gerontologia
Luchini, Ana Carolina. "Avaliação dos efeitos da cumarina e da 4-hidroxi-cumarima e de diferentes associações com a sulfassalazina no modelo de colite induzida por ácido trinitrobenzenosulfônico (TNBS) em ratos /." Botucatu, 2009. http://hdl.handle.net/11449/102429.
Banca: Célia Akiko Hiruma
Banca: Claudia Helena Pellizzon
Banca: Alessandra Gambero
Banca: Marcelo Aparecido da Silva
Resumo: As cumarinas representam uma importante classe de compostos fenólicos com inúmeras propriedades farmacológicas que incluem inibição da peroxidação lipídica, da geração de ânion superóxido dependente de neutrófilos, da citotoxicidade induzida por hidroperóxido de ácido linoleíco, da atividade de lipooxigenases e ciclooxigenases, além de agirem como agentes imunossupressores e antiinflamatórios. Todas estas propriedades são essenciais para que um produto seja potencialmente ativo para o tratamento das doenças inflamatórias intestinais (DII). A sulfassalazina (primeira opção terapêutica no tratamento das DII) possui vários efeitos colaterais, especialmente quando usada em altas doses ou em períodos longos de tratamento. O objetivo do presente trabalho foi avaliar se cumarina e 4-hidroxi-cumarina possuem efeitos preventivos e/ou curativos no modelo de colite induzida por ácido trinitrobenzenosulfônico (TNBS) em ratos e também se as associações de cumarina ou 4-hidroxi-cumarina com doses menores de sulfassalazina produzem efeitos antiinflamatórios com menor incidência de efeitos colaterais decorrentes da administração da sulfassalazina. Além disso, foram feitos estudos complementares para verificar se tais cumarinas modulam a produção de citocinas próinflamatórias em cultivos celulares in vitro e ex vivo. Este estudo testou a atividade antiinflamatória dos compostos-testes cumarina (2,5 a 50mg/Kg) e 4-hidroxicumarina (5 a 50mg/Kg) e das associações de cumarina com a sulfassalazina (C5+S5; C5+S15 e C5+S25) ou da 4-hidroxi-cumarina com a sulfassalazina (4-OHC25+S5, 4-OHC25+S15 e 4-OHC25+S25) em duas condições experimentais distintas: quando a mucosa colônica está intacta (efeito preventivo); quando a mucosa colônica está afetada por um processo inflamatório intestinal (efeito curativo) assim como preventivo da recidiva do processo inflamatório ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Coumarins comprise an important class of phenolic compounds with many pharmacological properties that includes inhibition of membrane lipid peroxidation, inhibition on neutrophil-dependent superoxide anion generation, inhibition on the linoleic acid hydroperoxide-induced cytotoxicity, and inhibition on cyclooxygenase and lipoxygenase activities, which could result in antiinflammatory and immunosuppressant effect. Those are some desired features for a candidate compound in the treatment of inflammatory bowel diseases (IBD). On the other hand, the IBD are life persisting diseases with unpredictable episodic reactivations and difficult treatment in severe cases. Sulfasalazine, the first choice drug in the treatment of mild to moderately active IBD cases, presents serious side effects when used in high doses or in long-term treatment. Thus, the aim of this study was to evaluate the effects of coumarin and 4-hydroxy-coumarin in rat experimental intestinal inflammation. Additionally, we evaluated the possibility of coumarins association to sulfasalazine in rat intestinal inflammatory conditions. For this purpose, the antiinflammatory activity of test compounds, coumarin (2.5 to 50mg/kg) and 4-hydroxy-coumarin (5 to 50mg/kg) and associations of coumarin with sulfasalazine (C5 plus S5, C5 plus S15, C5 plus S25) or 4-hydroxy-coumarin with sulfasalazine (4-OHC25 plus S5, 4-OHC25 plus S15 and 4-OHC25 plus S25) were tested in the model of trinitrobenzenesulphonic acid (TNBS) induced rat colitis in two different experimental conditions: when the colonic mucosa is intact (preventive effect), and when a previous inflammatory damage is caused to the colonic mucosa (curative effect), additionally to a reactivation of the inflammatory process (relapse prevention). The colonic damage was evaluated macroscopically, histologically and biochemically. For cell cultures evaluation of cytokine ... (Complete abstract click electronic access below)
Doutor
Hartmann, Renata Minuzzo. "O efeito antioxidante da Boswellia serrata no modelo experimental de colite induzida por ácido acético." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/70400.
Introduction: Ulcerative rectocolitis is an inflammatory disease that involves only the colon and rectum, being characterized by leukocyte infiltrate and superficial ulcers in the intestinal mucosa. The production and release of reactive oxygen and nitrogen species appears to be crucial in determining the pathophysiology of the disease, since both result in oxidative damage. Therefore, the search for treatment options with antioxidant properties is important currently and has been tested in experimental colitis. Objective: This study aimed to evaluate the effects of dry extract of Boswellia serrata plant in an experimental model of colitis induced by acetic acid on tissue injury, anal sphincter pressure, oxidative stress, on the activity of antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione (GSH), concentration of nitric oxide metabolites and expression of inducible nitric oxide synthase enzyme (iNOS) by immunohistochemistry. Methods: We used 25 male Wistar rats with an average weight of 350g, divided into 5 groups: control (CO), Control + Boswellia serrata (CO+B); Colitis (CL); Colitis + Boswellia serrata (CL+B) and Boswellia serrata + colitis (B+CL). The animals were submitted to intracolonic administration by enema with acetic acid solution diluted to 4% in a volume of 4 ml. The treatment with aqueous plant extract was performed orally at a dose of 34.2 mg/kg diluted in 4 ml of saline. The administration occurred once daily for 48 hours before and after the induction of colitis. We performed the measurement of anal sphincter pressure animals. Histological analyzes of bowel the after were made staining with hematoxylin-eosin and immunohistochemistry, performed with iNOS antibody. The homogenized intestine was used for evaluation of lipid peroxidation (LPO) through thiobarbituric acid reactive substances (TBARS), assessment of nitric oxide metabolites by the technique of total nitrites and nitrates and evaluation of the antioxidant enzymes SOD, GPx and GSH. Results: The analysis of anal sphincter pressure of the animals in groups CL+B and B+CL showed a significant increase when compared to the CL group. LPO and nitric oxide metabolites levels demonstrated significant decrease in groups CL+B and B+CL when compared to CL. SOD activity showed an increase in CL group and a significant decrease in groups CL+B and B+CL, remainig to the average of the CO group. The GPx and GSH showed a significant increase in groups CL+B and B+CL group when compared to CL group. Conclusion: We suggest that the administration of Boswellia serrata plant extract may be a possibility of antioxidant therapy in ulcerative colitis.
Almeida, Maristela Gomes de. ""Estudo da microbiota intestinal em doentes com retocolite ulcerativa antes e após retocolectomia com anastomose de bolsa ileal ao canal anal"." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/5/5154/tde-19102005-160653/.
The aim of this study is to describe the intestinal microbiota of patients with severe ulcerative colitis, under clinical treatment, before and after proctocolectomy and ileal pouch-anal anastomosis. Intestinal flora of distal ileum and rectum before surgery was compared with the flora found in ileal pouch after two and eight months after ileostomy closure and with the flora of distal ileum and rectum of controls. Veillonella sp was the most frequent microorganism found in all groups. There were no significant differences between the intestinal microbiota found in controls and in patients with ulcerative colitis
Thomas, Gareth Andrew Osbert. "Nicotine therapy for ulcerative colitis." Thesis, Queen Mary, University of London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309526.
Pullan, Rupert Derek. "Colonic mucus and ulcerative colitis." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358954.
Burke, Denis Anthony. "Ulcerative colitis and Escherichia coli." Thesis, University of Newcastle Upon Tyne, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309075.
Finnie, Ian A. "Mucosal metabolism and ulcerative colitis." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342167.
Hearing, Stephen David. "Steroid resistance in ulcerative colitis." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324259.
Rembacken, Björn Joakim. "Escherichia coli and ulcerative colitis." Thesis, University of Leicester, 2003. http://hdl.handle.net/2381/29440.
Stewénius, Jan. "Ulcerative colitis and indeterminate colitis in a defined population." Malmö : Dept. of Surgery and the Dept. of Community Medicine, Lund University, Malmö University Hospital, 1995. http://books.google.com/books?id=DBJsAAAAMAAJ.
Thomson, John M. "Colonic mucosal microbiota in ulcerative colitis." Thesis, University of Aberdeen, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540443.
Parente, José Miguel Luz 1959. "Características demográficas e fenótipos clínicos das doenças inflamatórias intestinais no Nordeste do Brasil." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/312761.
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
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Resumo: Introdução: Doença de Crohn (DC) e Retocolite Ulcerativa Idiopática (RCUI) são as duas principais doenças inflamatórias intestinais (DII), cuja prevalência é mais expressiva no norte da Europa, Estados Unidos da América e Canadá. Mais recentemente, elas passaram a ser detectadas em frequência crescente em todos os continentes. O objetivo desta pesquisa foi analisar as características demográficas e fenótipos clínicos dos pacientes com DII no Nordeste brasileiro, referentes à época da confirmação do diagnóstico. Casuística e Método: Este é um estudo descritivo e transversal, o qual foi aprovado pelo Comitê de Ética e Pesquisa da UFPI. Foram incluídos censitariamente os pacientes com DII que faziam seguimento clínico em serviços especializados de hospitais universitários em todas as capitais do Nordeste do Brasil. As variáveis analisadas foram: as características demográficas e socioeconômicas, e os dados clínicos de DC e RCUI de acordo com a classificação de Montreal. As análises estatísticas incluíram: média, mediana e desvio padrão para variáveis quantitativas; teste do qui-quadrado (c2) de Pearson para análise das variáveis qualitativas. O nível de significância adotado foi de 5%. Resultados: Foram incluídos 913 indivíduos com DII, sendo 486 (52,1%) com RCUI, 412 (44,2%) com DC e 35 (3,7%) com colite não classificada (CNC). A idade dos pacientes variou de 8 anos a 83 anos, média de 37,9 (DP = 14,4) anos, sendo 469 (50,3%) mulheres. Em todo o período estudado (1975 ¿ 2013), o atraso na confirmação diagnóstica foi de 31,0 meses. As características preponderantes dos pacientes com DC, segundo a classificação de Montreal foram: idade entre 17 e 40 anos (A2), localização com envolvimento de cólons (L2) e comportamento inflamatório (B1). Para os pacientes com RCUI, houve predomínio de pacientes com idade entre 17 e 40 anos e extensão da doença até ângulo esplênico (E2). Conclusão: Este estudo demonstrou que houve expressivo aumento na frequência de DC e RCUI na região Nordeste do Brasil nos últimos trinta anos
Abstract: Introduction: Usually, inflammatory bowel diseases (IBD), as Crohn's disease (CD) and ulcerative colitis (UC), have been described in northern Europe, United States of America and Canada. In the last decades, IBD frequency has been also increased in all continents. The aim of the study was to analyze the demographic characteristics and clinical phenotypes of IBD in the northeastern of Brazil, according to the time of the diagnosis. Casuistic and methods: This is a cross-sectional study, which was approved by the Institutional Ethics and Research Committee. We included patients who were undergoing medical treatment for IBD in specialized centers in the Federal University Hospitals from all Northeasthern areas in Brazil. Demographic and socioeconomic characteristics were analyzed, as well as clinical data of CD and UC according to the Montreal classification. Statistical analyses included mean, median and standard deviations for quantitative variables, and the Pearson chi-square (c2) test for qualitative variables. The level of significance adopted was 5%. Results: A total of 913 patients with IBD were included, 486 (52,1%) with UC, 412 (44,2%) with CD and 35 (3,7%) with unclassified colitis (UnC). The ages ranged from 8 years to 83 years, mean 37.9 (SD = 14.4) years. Of the total, 469 (50.3%) were women. Throughout the study period (1975 ¿ 2013), the delay in diagnosis confirmation was 31.0 months. The predominant characteristics of CD patients, according to the Montreal classification were: age between 17 and 40 years (A1); colon location (L2); and inflammatory behavior (B1). For patients with UC, there was a predominant age between 17 and 40 years, and left colitis (E2). Conclusion: This study showed that there was significant increase in the frequency of IBD (CD and UC) in northeastern of Brazil over the past thirty years
Doutorado
Medicina Interna
Doutor em Ciências Médicas
Fabia, Renata. "Ulcerative and experimental colitis pathophysiology as basis for therapeutic intervention /." Lund : Dept. of Surgery, Lund University, 1993. http://catalog.hathitrust.org/api/volumes/oclc/39798563.html.
Eaden, Jayne Alison. "Colorectal cancer in patients with ulcerative colitis." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/29610.
Hartley, Margaret Gillian. "The mucosa-associated flora in ulcerative colitis." Thesis, London School of Hygiene and Tropical Medicine (University of London), 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302786.
Kolida, Sofia. "Prebiotic applications in health and ulcerative colitis." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414520.
Mawdsley, Joel Evan David. "Psychological stress and hypnosis in ulcerative colitis." Thesis, Queen Mary, University of London, 2008. http://qmro.qmul.ac.uk/xmlui/handle/123456789/1540.
Patel, Rajan Kumar. "Immunological responses following surgery in ulcerative colitis." Thesis, University of Birmingham, 1995. http://etheses.bham.ac.uk//id/eprint/33/.
Fennessy, Michael Joseph. "Investigation of mRNA sequences in ulcerative colitis." Thesis, University of Leicester, 1992. http://hdl.handle.net/2381/35294.
Kennedy, Ashley Jenna. "The Assessment of Polyphenols in Ulcerative Colitis." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555567162329623.
Santos, Rachael Miranda dos. "O telecuidado no tratamento das doenças inflamatórias intestinais: ensaio clínico randomizado." Universidade Federal Fluminense, 2016. https://app.uff.br/riuff/handle/1/5894.
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Mestrado Profissional em Enfermagem Assistencial
As doenças inflamatórias intestinais (DII), apresentam uma crescente incidência mundial, são crônicas, progressivas, podendo se tornar graves. Esse estudo objetivou: Avaliar a efetividade do telecuidado dos pacientes portadores de Doenças Inflamatórias Intestinais, comparado ao tratamento ambulatorial convencional; Realizar telecuidado a um grupo de pacientes a partir do Índice Simples de Harvey-Bradshaw para Doença de Crohn (DC), e do Índice Clínico Simples de Atividade da Colite para Retocolite ulcerativa (RCU), acompanhando a flutuação de score, assim como; Avaliar a incidência de complicações relacionadas a DII, no grupo telecuidado pelo enfermeiro e no grupo controle dos pacientes atendidos no Ambulatório de Doenças Inflamatórias Intestinais da Policlínica Piquet Carneiro. Método: Ensaio clínico controlado e randomizado com tempo de seguimento de 24 semanas. A amostra foi de 176 voluntários. A coleta de dados ocorreu de abril a outubro de 2016. O desfecho primário do estudo foi a redução do índice de atividades da DII dos pacientes telecuidados e os desfechos secundários foram a redução de complicações relacionadas a doença. A pesquisa foi submetida, aprovada e registrada no Comitê de Ética em Pesquisa do Hospital Universitário Pedro Ernesto parecer 1.598990, e pelo Registro Brasileiro de Ensaios Clínicos com registro RBR-7t8fv7. Resultados: Os grupos foram homogêneos quanto às características sociodemográficas e clínicas. A população é tipicamente de mulheres (61,4%), brancas (47,26%), com idade média 44,7 anos. Quanto ao diagnóstico (54,5%) DC e (45,5%) RCU. As principais comorbidades foram hipertensão arterial sistêmica (36,4%) e diabetes mellitus (10,3%). E quanto à evolução ao longo de 24 semanas de tratamento, o grupo telecuidado apresentou maiores taxas de remissão da doença (97,7%), e menor escore de atividade da doença (1,7). Assim como maior adesão as condutas orientadas pela equipe multiprofissional do que o grupo controle. Os experimentados com baixo peso, tiveram sua classificação aproximada a faixa de normalidade. Conclusão: o telecuidado apresentou maior efetividade que o tratamento convencional no controle de atividade das DII
The inflammatory bowel diseases (IBD), a growing global impact, are progressive, chronic and may become severe. This study aimed to: Assess the effectiveness of the telenursing of patients with inflammatory bowel diseases, compared to the conventional outpatient treatment; Perform telenursing to a group of patients from the Simple Index of Harvey-Bradshaw to Crohn's disease (ad), and Simple Clinical index of activity of colitis for ulcerative rectocolitis (RCU), following the score, as well as fluctuation; To evaluate the incidence of complications related to IBD in the telecuidado group by the nurse and in the control group of patients seen in inflammatory bowel disease clinic of Piquet Carneiro Polyclinic. Method: randomized controlled trial with follow-up time of 24 weeks. The sample was of 176 volunteers. Data collection occurred from April to October 2016. The primary outcome of the study was the reduction in the index of activities of the IBD of telecare patients and the secondary outcomes were the reduction of complications related to the disease. The research was submitted, approved and registered in the Committee of Ethics in Research of the Hospital Universitário Pedro Ernesto opinion 1.598990, and by the Brazilian Registry of Clinical Trials with registry RBR-7t8fv7. Results: The groups were homogeneous regarding sociodemographic and clinical characteristics. The population is typically female (61.4%), white (47.26%), with a mean age of 44.7 years. Regarding the diagnosis (54.5%), DC and (45.5%) RCU. The main comorbidities were systemic arterial hypertension (36.4%) and diabetes mellitus (10.3%). Regarding the evolution over 24 weeks of treatment, the telecution group presented higher rates of disease remission (97.7%), and lower disease activity score (1.7). As well as greater adhesion the conducts guided by the multiprofessional team than the control group. Those with low weight, had their classification close to the normal range. Conclusion: telenursing was more effective than conventional treatment in the control of IBD activity
Socca, Eduardo Augusto Rabelo 1981. "Efeitos de antocianinas monoméricas de Sambucus nigra L. sobre modelo de colite ulcerativa induzida por TNBS." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314720.
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Retocolite ulcerativa idiopática e doença de Crohn são doenças inflamatórias intestinais caracterizadas por inflamação crônica da mucosa, resultando em diarréia, fezes sanguinolentas, dores abdominais, anemia, febre, fadiga e perda de peso, tanto em homens quanto em mulheres. Acredita-se que essas manifestações sejam resultado de uma interação multifatorial envolvendo indivíduos geneticamente susceptíveis, condições ambientais específicas, desbalanço na microflora intestinal e desajuste da resposta imune. Drogas derivadas do acido 5-aminossalicilico (sulfassalazina, mesalamina), corticosteroides e agentes imunomoduladores são utilizadas, em conjunto no tratamento dessas patologias. No entanto tais drogas apresentam efeitos adversos importantes, o que acaba por motivar pesquisas envolvendo produtos naturais como alternativas de tratamento. Neste contexto, este trabalho avaliou os efeitos de antocianinas presentes nos frutos de Sambucus nigra L. (sabugueiro), espécie arbustiva pertencente a família Adoxaceae, em modelo de colite ulcerativa induzida pelo acido 2,4,6-trinitrobenzeno sulfônico (TNBS). Os frutos do sabugueiro apresentam grandes concentrações de metabolitos secundários como antocianinas, alem de outros compostos fenólicos, que acabam por conferir aos frutos propriedades antioxidantes, anti-inflamatorias, imunomoduladoras e laxativas. Neste trabalho, foram avaliadas as propriedades antioxidantes e anti-inflamatorias da fração de antocianinas monoméricas presentes nos frutos de S. nigra. Os resultados comprovaram o efeito antioxidante in vitro das antocianinas, sendo elas eficazes em reduzir tanto o radical 2,2-difenil-1-picrilhidrazil (DPPH), teste que avalia a redução do radical via transferência de elétrons, quanto a taxa de oxidação do radical 2,2 azobis amidinopropano (AAPH), teste que verifica a oxidação do radical via transferência de átomos de hidrogênio. Nos ensaios in vivo concluiu-se que a dose de 5mg.Kg-1 de antocianinas apresentou a melhor resposta em reduzir a lesão causada pelo TNBS, sendo efetiva em manter os níveis de GSH (5,709 ± 0,931) comparado ao grupo TNBS (0,8525 ± 0,298) e ao grupo salina (6,610 ± 3,926). Essas antocianinas foram efetivas ainda em aumentar a atividade da SOD (8,487 ± 2,505), quando comparada com o grupo TNBS (3,884 ± 0,925) e ao grupo salina (12,240 ± 4,199), e reduzir a atividade da MPO (4,519 ± 2,016), quando comparada ao grupo TNBS (7,572 ± 2,572) e ao grupo salina (1,314 ± 0,319). Os resultados obtidos na avaliação da atividade das enzimas GPx (17,03 ± 3,951 no grupo tratado e 22,13 ± 11,510 no grupo TNBS) e GR (0,6524 ± 0,1180 no grupo tratado e 0,7249 ± 0,3968 no grupo TNBS), comparados ao grupo salina (84,22 ± 41,88) e (2,131 ± 0,9858) respectivamente, indicam que houve queda na ativação destas enzimas apos 24h de indução da colite, sendo que esta situação não foi revertida apos administração das antocianinas. Do mesmo modo não foram encontradas alterações nos níveis de LPO (5,756 ± 1,884 no grupo tratado e 5,113 ± 0,8254 no grupo TNBS) comparados ao grupo salina (4,688 ± 1,126) . Já os ensaios anti-inflamatórios revelaram atividade antiinflamatória promissora, visto que as antocianinas foram capazes de manter os níveis de IL-10 (466,7 ± 56,32) próximos aqueles obtidos no grupo não-colitico (492,4 ± 154,5), quando comparados ao grupo TNBS (264,8 ± 66,35), e de reduzir a produção de IL-12 (202,3 ± 53,33) quando comparados com os animais não tratados (319,3 ± 111,5) e ao grupo salina (149,8 ± 51,76). Neste estudo concluiu-se que as antocianinas presentes nos frutos de sabugueiro apresentam atividade antioxidante, alem de aumentar os níveis de IL-10, citocina essa que, provavelmente, participa na redução dos níveis de citocinas pro - inflamatórias como IL-12 e, consequentemente, a expressão de mediadores inflamatórios
Abstract: Ulcerative colitis and Crohn's disease are inflammatory bowel disease characterized by chronic inflammation of the mucosa, resulting in diarrhea, bloody stools, abdominal pain, anemia, fever, fatigue and weight loss in both men and women. It is believed that these manifestations are the result of a multifactorial interaction involving genetically susceptible individuals, environmental conditions, imbalance in intestinal microflora and immune response imbalance. Drugs derived from 5-aminosalicylic acid (sulfasalazine, mesalamine), corticosteroids and immunomodulatory agents are used together to treat these diseases. However, such drugs have significant adverse effects, which ultimately motivate research involving natural products as alternative treatments. In this context, this study evaluated the effects of anthocyanins in the fruits of Sambucus nigra L. (Elderberry), shrub species belonging to the family Adoxaceae, in a model of ulcerative colitis induced by 2,4,6-trinitrobenzenes sulfonic acid (TNBS). The fruits of elderberry have large concentrations of secondary metabolites such as anthocyanins and other phenolic compounds, which ultimately give the fruit antioxidant, anti-inflammatory, immunomodulatory and laxative properties. In this study we investigated the antioxidant and anti-inflammatory properties of the monomeric anthocyanins fraction in the fruits of S. nigra. The results confirmed the in vitro antioxidant effect of anthocyanins, which were effective in reducing both the 2,2-diphenyl-1-picrylhydrazyl (DPPH) test to evaluate the reduction of the radical via electron transfer and the rate of oxidation 2,2 azobis amidinopropane (AAPH), a test that checks radical oxidation via the transfer of hydrogen atoms. In vivo tests concluded that the dose of anthocyanins 5mg.Kg-1 had the best response to reduce the damage caused by TNBS, being effective in maintaining the levels of GSH (5.709 ± 0.931) compared to TNBS group (0, 8525 ± 0.298) and the saline group (6.610 ± 3.926). These anthocyanins were also effective in increasing the activity of SOD (8.487 ± 2.505) compared with the TNBS group (3.884 ± 0.925) and the saline group (12.240 ± 4.199), and reduce the activity of MPO (4.519 ± 2.016) when compared to TNBS group (7.572 ± 2.572) and the saline group (1.314 ± 0.319). The results obtained in the enzymatic activities of GPx (17.03 ± 3.951 in the treated group and 22.13 ± 11.510 in group TNBS) and GR (0.6524 ± 0.1180 in the treated group and 0.7249 ± 0.3968 TNBS group) compared to saline group (84.22 ± 41.88) and (2.131 ± 0.9858) respectively, indicate that there was a decrease in the activation of these enzymes after 24h of colitis induction. Likewise there were no changes in the levels of LPO (5.756 ± 1.884 in the treated group and 5.113 ± 0.8254 in group TNBS) compared to saline group (4.688 ± 1.126). The anti-inflammatory assays have shown promising antiinflammatory activity, whereas anthocyanins were able to maintain levels of IL-10 (466.7 ± 56.32) than those obtained in non-colitis group (492.4 ± 154 , 5), when compared to TNBS group (264.8 ± 66.35), and reduce the production of IL-12 (202.3 ± 53.33) compared with untreated animals (319.3 ± 111 , 5) and the saline group (149.8 ± 51.76). In this study it was concluded that anthocyanins present in elderberry fruits have antioxidant activity, and increased levels of IL-10, this cytokine, which probably participates in reducing levels of proinflammatory cytokines such as IL-12 and consequently the expression of inflammatory mediators
Mestrado
Fisiologia
Mestre em Biologia Funcional e Molecular
Tai, Kin-ki Emily. "Defining the protective role of cathelicidin on ulcerative colitis in mice." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/b40203542.
Samson, Helen Joanne. "Human faecal proteinases and changes in ulcerative colitis." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333989.
Smithson, John Edmund. "Regional heterogeneity in the colon and ulcerative colitis." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294578.
Pitcher, Maxton Charles Leighton. "Sulphate-reducing bacteria, sulphur metabolism and ulcerative colitis." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263562.
Chen, Jo-Hua. "Acute Severe Ulcerative Colitis: Evidence Based Consensus Statements." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17592.
Chebli, Liliana Andrade. "Azatioprina no tratamento de pacientes com colite ulcerativa córtico-dependente: resultados e fatores preditivos de resposta." Universidade Federal de Juiz de Fora (UFJF), 2009. https://repositorio.ufjf.br/jspui/handle/ufjf/4945.
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CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
Colite ulcerativa é uma condição inflamatória imuno-mediada da mucosa colônica, caracterizada por curso intermitente e recorrente. Corticosteróides permanecem como uma das terapias mais efetivas para induzir remissão em pacientes com colite ulcerativa moderada a severa. Todavia, corticosteróides não são usados como terapia de manutenção, principalmente porque os efeitos colaterais indesejáveis superam seus possíveis benefícios. Além disso, em um ano, menos da metade dos pacientes com colite ulcerativa que requerem corticosteróides terão resposta sustentada, aproximadamente um terço dos pacientes necessitarão de colectomia e um quarto não tolerarão a retirada do mesmo sem que apresentem recidiva da doença. Assim, dependência de corticóides em paciente com colite ulcerativa é problema clínico fundamental e manutenção da remissão sem esteróides é uma importante meta terapêutica no presente. Em pacientes com colite ulcerativa córtico-dependente, usualmente é colocado a escolha entre colectomia ou escalonamento do tratamento clínico, o qual tradicionalmente envolve a prescrição de droga imunossupressora. A terapia com tiopurinas tem tido amplo uso neste cenário na prática clínica. Entretanto, estudos avaliando a eficácia da azatioprina (AZA) na colite ulcertiva córtico-dependente são escassos. Os objetivos deste estudo foram avaliar em pacientes com colite ulcerativa dependente de esteróides, a eficácia da AZA na manutenção da remissão clínica sem esteróides, bem como os possíveis fatores associados à resposta sustentada a esta droga. Neste estudo de coorte observacional, pacientes adultos com colite ulcerativa dependente de esteróides foram recrutados para tratamento com AZA durante o período de 12 meses. AZA foi ajustada para a dose alvo de 2-3 mg/Kg/dia. A redução da dose de esteróides durante o estudo seguiu um esquema previamente padronizado. A avaliação primária de eficácia foi a taxa anual de pacientes que alcançaram resposta sustentada a AZA sem esteróides. Avaliações secundárias incluíram o número anual de recorrências clínicas, dose mediana de esteróides utilizadas durante o ano e segurança do tratamento. O total de 42 pacientes foi incluído. Na análise intenção de tratar, a proporção de pacientes permanecendo em remissão sustentada sem esteróides no final de 12 meses foi de 0,55. Observou-se significante redução na taxa de recorrências clínicas, assim como no requerimento de esteróides durante 12 meses de tratamento com AZA quando comparado com o ano anterior ao uso desta droga. (P=0,000 para ambas as comparações). Apenas a duração da doença < 36 meses antes do início da AZA foi associada à remissão clínica sem esteróides (P=0,02, OR 3,12 95% IC 1,89-7,64). AZA foi bem tolerada e o seu perfil risco-beneficio favorável. AZA mostrou eficácia sustentada para a manutenção da remissão clínica sem esteróides, bem como efeito poupador de esteróides durante 12 meses de terapia em pacientes com colite ulcerativa dependente de esteróides. Os pacientes com colite ulcerativa de início mais precoce são aqueles que mais provavelmente alcançarão remissão sustentada sem esteróides durante o uso de AZA.
Ulcerative colitis (UC) is a lifelong, immune-mediated inflammatory condition of the colonic mucosa, which is characterized by a relapsing and remitting course. Corticosteroids remain one of the most effective therapies for inducing remission in patients with moderate-to-severe UC. Nonetheless, corticosteroids are not used in maintenance therapy, mainly because undesirable side effects outweigh the possible benefits. Furthermore, at one year, less than half of UC patients who require steroids have a sustained response, nearly one-third of patients require colectomy, and approximately a quarter is unable to support its withdrawal without relapsing. Thus, corticosteroid dependence in patients with UC is a pivotal clinical problem and maintenance of steroid-free remission is an important current evolving treatment goal. Patients with steroid dependent UC are usually given a choice between colectomy or stepped-up medical treatment, which traditionally involves prescription of an immunosuppressive drug. Thiopurine therapy has found widespread use for this setting in clinical practice. However, studies assessing the efficacy of azathioprine (AZA) in steroid-dependent ulcerative colitis (UC) are scarce. The purpose of this trial was to explore the efficacy of AZA in maintaining steroid-free remission in steroid-dependent UC patients as well as the factors associated to sustained response. In this observational cohort study adult subjects with steroid-dependent UC were recruited for AZA therapy during a 12 months period. AZA was adjusted for a target dose of 2-3 mg/Kg/day. Steroid therapy was tapered off following a standardized regimen. The primary endpoint was the rate of patients with sustained steroid-free response to AZA at the end of 12 months. Secondary endpoints included clinical recurrence, yearly steroid dose, and safety of treatment. A total of 42 patients were included. On an intention-to-treat basis, the proportion of patients remaining in sustained steroid-free remission at 12 months was 0.55. A significant decrease in the flare-ups rate as well as in requirement for steroids were observed during 12 months while on AZA compared with the previous year (P=0.000). Only disease duration of <36 months before the initiation of AZA was associated to off-steroids remission (P=0.02, OR 3.12 (95% CI 1.89-7.64)). AZA was well tolerated and its benefit-risk profile favorable. AZA showed sustained efficacy for maintenance of clinical remission off steroids and steroid sparing through 12 months of therapy in patients with steroid dependent UC. Patients with earlier UC are those who most probably will have sustained steroid-free remission while on AZA.
Marcelino, Monica Yonashiro. "Emprego de terapia celular em modelo experimental de doença inflamatória intestinal." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-05022013-091331/.
It was intended in this study verify the safety and efficacy of the transplantation of adipose derived stem cells (ASC) in rats with ulcerative colitis induced by trinitrobenzenosulfonico acid (TNBS). The cell population was isolated from the adipose tissue by mechanical dissociation and cultured. The cell behavior was verified by the morphology, proliferation, viability, ability to adhere to the plastic surface and parameters of osteogenic differentiation, adipogenic and chondrogenic. The animals were evaluated, considering the aspects clinical, macroscopic, microscopic and biochemical. In experimental ulcerative colitis, infusion of ASC significantly reduced the presence of adhesions between the colon and adjacent organs and decreased the amount of inflammatory cells in the injured mucosa. It is concluded that the ASC can promote and/or accelerate the healing process of the intestinal mucosa inflamed and thus be employed as a therapeutic option with wide potential application in the treatment of IBD.
Rutter, Matthew David. "Improving colonscopic surveillance for colorectal cancer in ulcerative colitis." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419930.
McKay, Damian. "Butyrate and HMG-CoA reductase inhibitors in ulcerative colitis." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.528019.
Alkhalil, Samia. "Bacterial involvements in ulcerative colitis : molecular and microbiological studies." Thesis, University of Portsmouth, 2017. https://researchportal.port.ac.uk/portal/en/theses/bacterial-involvements-in-ulcerative-colitis(5c179812-c6d9-497a-bf39-45fa3a59f045).html.
Picton, Rhian. "Hydrogen sulphide toxicity : an aetiological factor in ulcerative colitis." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395590.
Kakiuchi, Nobuyuki. "Frequent mutations converging into NFKBIZ signalling in ulcerative colitis." Kyoto University, 2020. http://hdl.handle.net/2433/253200.
Nanakin, Apichart. "Expression of the REG 4 gene in ulcerative colitis." Kyoto University, 2008. http://hdl.handle.net/2433/135853.
Furfaro, F. "LATE-ONSET ULCERATIVE COLITIS: THE IG-IBD 'AGED STUDY'." Doctoral thesis, Università degli Studi di Milano, 2016. http://hdl.handle.net/2434/359596.
Chebli, Liliana Andrade. "Eficácia e segurança da azatioprina no tratamento de longo prazo de pacientes com colite ulcerativa córtico-dependente." Universidade Federal de Juiz de Fora, 2011. https://repositorio.ufjf.br/jspui/handle/ufjf/2074.
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Colite ulcerativa é uma doença inflamatória intestinal idiopática da mucosa colônica caracterizada clinicamente por episódios intermitentes de exacerbações alternados com períodos de remissão. Os corticosteroides permanecem como uma das drogas mais efetivas no tratamento das exacerbações moderadas a graves da colite ulcerativa. Entretanto, eles não são adequados para terapia de manutenção devido à falta de eficácia na prevenção de recorrências. Além disso, seu uso associa-se frequentemente com vários efeitos adversos e, aproximadamente, 25% dos pacientes que respondem aos corticosteroides serão incapazes de tolerar sua retirada sem que apresentem recorrências sintomáticas. Consequentemente, ―dependência de esteróides‖ em pacientes com colite ulcerativa é um problema de grande relevância na prática e manutenção da remissão sem esteróides é meta importante a ser alcançada. Diversas modalidades terapêuticas podem ser empregadas em pacientes com colite ulcerativa córtico-dependente (CUCD). Tradicionalmente, a escolha é entre a cirurgia ou o escalonamento do tratamento clínico, que geralmente envolve o uso de imunossupressores. O tratamento com azatioprina (AZA) tem tido amplo uso neste cenário. Entretanto, estudos no longo prazo avaliando a eficácia da AZA na CUCD são inexistentes. Os objetivos deste estudo foram avaliar em pacientes com CUCD, a eficácia da AZA no longo prazo para manutenção da remissão clínica sem esteróides, bem como a segurança desta droga neste contexto. Neste estudo de coorte prospectivo observacional, pacientes adultos com CUCD foram recrutados para tratamento com AZA durante o período de 36 meses. AZA foi ajustada para a dose alvo de 2-3 mg/Kg/dia. A redução da dose de esteróides durante o estudo seguiu um esquema previamente padronizado. A avaliação primária de eficácia foi a taxa anual de pacientes que alcançaram resposta sustentada a AZA sem esteróides. Resposta sustentada foi definida como a retirada completa dos corticosteroides e manutenção da remissão clínica sem a necessidade de se reintroduzir esteróides durante pelo menos seis meses adicionais. As principais avaliações de eficácia secundária foram: dose cumulativa anual de esteróides, número anual de recorrências da colite após introdução da AZA e efeitos adversos. Em base intenção de tratar, a proporção de pacientes permanecendo em remissão sem esteróides em 12, 24, e 36 meses foi 0.55, 0.52, e 0.45, respectivamente. Significante diminuição na taxa de recidivas clínicas assim como no requerimento para esteróides foram observados durante três anos de tratamento com AZA comparado com o ano prévio (P=0.000 para ambos). Pacientes com e sem resposta sustentada foram similares de acordo com demografia, extensão da doença, dose de AZA, uso de esteróides e 5-ASA. Apenas a duração menor da doença (<36 meses) associou-se à remissão sem esteróides (P=0.02, OR 3.12 95% IC 1.89-7.64). AZA foi bem tolerada e o perfil risco-benefício favorável. Neste estudo, AZA mostrou eficácia sustentada para manutenção da remissão clínica sem esteróides e para poupar esteróides durante três anos de terapia em pacientes com CUCD. Pacientes com colite ulcerativa de início mais recente são aqueles que mais provavelmente alcançarão remissão sustentada sem esteróides no final de 12 meses enquanto em uso de AZA. Isto parece se manter por até 36 meses.
Ulcerative colitis (UC) is a lifelong, immune-mediated inflammatory condition of the colonic mucosa, which is characterized by a relapsing and remitting course. Corticosteroids remain one of the most effective therapies for inducing remission in patients with moderate-to-severe UC. Nonetheless, corticosteroids are not used in maintenance therapy, mainly because undesirable side effects outweigh the possible benefits. Furthermore, approximately 25% of the patients is unable to support its withdrawal without relapsing, suggesting that the need to start steroid therapy in UC is associated with a dismal long-term prognosis. Thus, corticosteroid dependence in patients with UC is a pivotal clinical problem and maintenance of steroid-free remission is an important current evolving treatment goal. Patients with steroid dependent UC are usually given a choice between colectomy or stepped-up medical treatment, which traditionally involves prescription of an immunosuppressive drug. Azathioprine (AZA) therapy has found widespread use for this setting in clinical practice. However, studies assessing the efficacy of azathioprine in steroid-dependent ulcerative colitis (SD-UC) are scarce. The purpose of this trial was to explore the efficacy and safety of AZA in maintaining long-term steroid-free remission in SD-UC patients and the factors associated to sustained response. In this observational cohort study 42 subjects with SD-UC were recruited for AZA therapy during a 3-year period. AZA was adjusted for a target dose of 2-3 mg/Kg/day. Steroid therapy was tapered off following a standardized regimen. The primary endpoint was the annual rate of steroid-free response to AZA. Secondary endpoints included clinical recurrence, yearly steroid dose, and safety of treatment. On an intention-to-treat basis, the proportion of patients remaining in steroid-free remission at 12, 24, and 36 months was 0.55, 0.52, and 0.45, respectively. A significant decrease in the flare-ups rate and in requirement for steroids were observed during 3 years on AZA compared with the previous year (P=0.000 for both). Patients with and without sustained response were comparable according to demographics, extent of disease, dose of AZA, steroids and 5-ASA use. Only disease duration <36 months was associated to off-steroids remission (P=0.02, OR 3.12 95% CI 1.89-7.64). The AZA benefit-risk profile was favorable. In this open-label observational trial AZA showed sustained efficacy for maintenance of clinical remission off steroids and steroid sparing through 3 years of therapy in SD-UC. Patients with earlier UC are those who most probably will have sustained steroid-free remission at the end of 12 months while on AZA. This appears to sustain until 36 months.
Silva, Marcos Vinicius da. "Efeito da colite ulcerativa experimental sobre o receptor P2X7 no sistema nervoso entérico de ratos wistar." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/42/42131/tde-15032012-160340/.
In the digestive tract ulcerative colitis have a bowel necrosis as pathophysiological processes. This project aimed to study neurons with their respective chemicals codes the enteric nervous system (ENS) as well as structural morphology of the distal colon of animals with ulcerative colitis. Groups: a) colitis: TNBS injected, b) PBS: PBS injected and c) control. The tissues were prepared by immunohistochemical methods for double marking with P2X7 receptor, ChAT, Calb, Calr, anti-HUC / D (pan-neuronal) and S100 (glial cells). In the colitis group, the myenteric plexus, the P2X7 receptor decreased. In the injured tissue showed increased neutrophils, alteration and destruction of collagen and epithelial goblet cells. There were reduced colocalizations of neurons with receptor in myenteric plexus and increase in submucosal plexus. There were reductions in the densities and areas neurons of ENS. Concluded that colitis affected enteric neurons and glial cells, causing morphological changes and could be affect intestinal motility.
Kornfeld, Dan. "Inflammatory bowel disease : risk factors for adverse outcomes, and preventive measures /." Stockholm, 1997. http://diss.kib.ki.se/1997/19971105korn.
Fenero, Camila Ideli Morales. "Estudo do modelo de inflamação intestinal induzida por TNBS em larvas de Zebrafish (Danio rerio)." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/42/42133/tde-09122015-123622/.
Inflammatory bowel diseases are characterized by a dysregulation in immune response against microbiota. The zebrafish has emerged as a new model for the study of inflammatory diseases. Short chain fatty acids (SCFAs) are products of the intestinal microflora, which have anti-inflammatory roles and appear as a possible therapy against inflammatory diseases. The implementation of intestinal inflammation model induced by trinitrobencenesulfonic acid (TNBS) in zebrafish larvae, increased mortality in a dose-dependent manner. Was observe dilatation lumen and straightening of the intestinal villi. No changes were detected in the production of mucus or in the number of goblet cells but had a slight increase in apoptosis and decreased proliferation in exposed to TNBS. Also has, increased cytokines and infiltrating myeloid cells, and dysbiosis of the microbiota. Treatment with SCFAs generate high mortality above 10 mM concentrations, but there anti-inflammatory action to this same concentration.
Fraser, Keely Gabrielle. "Impact of macronutrient restriction and probiotic supplementation on protein synthesis and growth in a piglet model of dextran sulphate-induced colitis." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99178.
Tai, Kin-ki Emily, and 戴健琦. "Defining the protective role of cathelicidin on ulcerative colitis in mice." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B40203542.
Patel, Maleene. "Characterisation of microRNAs in ulcerative colitis and colitis associated cancer for use as potential biomarkers." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40526.
Hjortswang, Henrik. "A strategy for health assessment : the case of ulcerative colitis /." Linköping Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2003/med767s.pdf.
Hyde, Gillian Mary. "Tyrosine kinase activation by intestinal bacteria : implications for ulcerative colitis." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391626.
Robson, K. F. "The employment experiences of ulcerative colitis and Crohn's disease sufferers." Thesis, Cardiff University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541996.
Walsh, Alissa. "TrueColours : real time data collection in patients with ulcerative colitis." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:a4ab55af-5364-4fa4-86ca-e84b917d7f70.
Kleinman, Joshua. "Polyphenol intake by food group in the ulcerative colitis population." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555457246762338.