Dissertações em Doenças Tropicais (Mestrado) - PPGDT/NMT
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/3559
O Mestrado Acadêmico em Doenças Tropicais iniciou em 2004 e pertence ao Programa de Pós-Graduação em Doenças Tropicais do Núcleo de Medicina Tropical (NMT) da Universidade Federal do Pará (UFPA).
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Item Acesso aberto (Open Access) Apoptose de células inflamatórias e evolução clínica do Eritema Nodoso Hansênico: ensaio com Azatioprina(Universidade Federal do Pará, 2008) OLIVEIRA, Miguel Saraty de; XAVIER, Marília Brasil; http://lattes.cnpq.br/0548879430701901Leprosy is a chronic infectious and contagious disease, affecting mainly skin and peripheral nerves, interrupted by outbreaks reaction, classified as Type I or reverse reaction and the reaction type II or erythema nodosum leprosum, usually accompanied by neuritis.Thalidomide and prednisone are widely used in treat ENL, but are not always fully effective, it needs to be investigate other immunosuppressive drugs to control the reaction. The phenomenon of apoptosis of inflammatory cells occurs in leprosy and ENL, but few studies correlating the phenomenon with clinical improvement or worsening of the ENL reaction are available. This report describes the occurrence of apoptosis of inflammatory cells and clinical progression of erythema nodosum leprosum before, during and after the use of azathioprine to treat ENL. The results obtained with 07 patients enrolled in the study indicate that the drug, azathioprine, is effective in treating cases of ENL difficult to treat. This drug may induce remission of ENL, as well as to further decrease the dose of prednisone in use.The phenomenon of apoptosis could be documented using the immunogold with caspase 3 in all cases. There was no significant variation seen between the number of cells highlighted with caspase 3 before and after treatment with azatioprina.No significant correlation between the number of cells highlighted with caspase 3 before and after treatment with azathioprine and clinical improvement shown could be demonstrated.Item Acesso aberto (Open Access) Avaliação in vitro dos efeitos de miltefosina, orizalina e TC95 no crescimento de Entamoeba histolytica(Universidade Federal do Pará, 2011) ALVARENGA, Betânia Mara; BATISTA, Evander de Jesus Oliveira; http://lattes.cnpq.br/2206444845201080Amebiasis is characterized as a chronic, noninflammatory, afebrile which involves the colon wall and can invade the intestinal mucosa and spread to other organs, especially the liver. Entamoeba histolytica infection is treated with metronidazole, but this one presents side effects, so researches have been done to find more effective drugs with no adverse effects to the patient. In addition, testing new drugs may reveal important features of the parasite, such as the discovery of metabolic pathways or possible differences in their structure. In the present study, it was tested the amoebicidal effect of metronidazole, dinitroaniline oryzalin, a microtubule inhibitor, miltefosine, an alkylphosphocholine, that inhibits the membrane phospholipids syntesis, and TC95, a hybrid drug that presents the functional groups dinitroaniline and alkylphosphocholine. It was performed a culture with protozoan trophozoites, where the drugs and the control with diluents were added after 7 hours of culture. It was made a count of the viable trophozoites 12 hours after the addition of the drugs and the control at intervals of 12 to 60 hours. After analyzing the growth curves, it was found that the TC95 was the most effective drug of the three treatments, miltefosine had little inhibition and oryzalin was not effective. This is due to greater susceptibility of the parasite to membrane damage, with little effectiveness on microtubules inhibition.