117 resultados para Modelo Prevenção Avaliação e Falhas


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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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Understanding the linkages between the natural elements is essential for being promoted the land use, occupation and sustainable management of environmental systems. Universal Soil Loss Equation (USLE), as a predictive model of erosion, is important to allowing the prevention of possible environmental impacts which may drastically interfere in natural or anthropic environments, as well as prevent potential financial wastes and even contribute to greater efficiency of agricultural production. This research will be working some USLE parameters, emphasizing topographic factor from Ribeirão Monjolo Grande watershed. Among the factors considered by the USLE, the Topographic Factor interferes directly in the erosive dynamic of a watershed because it involves variables related to hydrological processes that occur on it. In this research, were discussed different methods for obtaining the Topographic Factor (BERTONI e LOMBARDI NETO, 1985; MOORE e BURCH, 1986; DESMET E GOVERS, 1996) in GIS environment. After comparison between the methods, was indicated that best represents the conditions of geometry strand of the study area. Finally, other factors (R, K, C, P) considered by the USLE were obtained. The attainment of these parameters were guided by the use of geotechnologies, especially in Geographic Information Systems (GIS), with the assistance of secondary data and periodic field visits. The results obtained contributed to the understanding of hydrosedimentological dynamic in this area and serve as a viable strategy for studies of soil loss, aiming at developing consistent material for future researches about environmental planning and land management

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The behavior and experience of pain are characterized by alertness and anxiety, which disappear soon after the healing process begins. Based on this area, the present study aimed to quantify the expression of c-fos in segments of the brain of rats after surgical stimulation in one rear hind paw (analgesia), using anesthesia with sodium thiopental and practices of acupuncture pre and post operative. The animals were stimulated with intraperitoneal injections of solution (NaCl) 0.2% (2ml), and divided into three groups, control, preoperative and postoperative. Each treatment was divided in manual acupuncture (AM) and electroacupuncture (EA). The animals were randomly distributed in each group. The c-fos expression was quantitated using immunohistochemistry for all situations. The results showed a great efficiency of all treatment compared to the control group (p <0.001), thus reenforcing data in the literature on the potential of acupuncture analgesia. There were no statistical differences among the different treatments, although there was a trend of EA being more efficient than AM

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Pipelines are linear engineering works, designed mostly for transporting oil and its derivatives for long distances, furnishing even the farthermost zones of the country. Due to oil sector needs to ensure for the safety and conservation of its properties, several geotechnical studies are being held at the pipelines field, in order to preserve this important transportation, and also to prevent accidents, which might seriously compromise the environment and the population who lives around it. The OSBRA pipeline, who connects the city of Paulínia to the capital Brasília, is one of these engineering works that deserves to be pointed out. This research, performed at the Ribeirão da Prata Basin, was a pilot study conducted with the main objective of testing the current methodology efficiency, for future applications in the closest watersheds to the OSBRA pipeline. The objective of this research is to analyze flood wave and debris flow processes in a non-fictional watershed, by comparing two different kinds of methods: the first one based on simulation models (software ‘ABC 6’), and the other one by flood wave and debris flow susceptibility mapping. The results from the hydrological modeling were both hydrographs and ietographs that estimated values of outputs and infiltration. To construct the susceptibility maps were necessary three other maps: ground use and occupation maps, divided according to the different protection degrees that were offered to the ground; maps of dam locations in the area and physiographic compartimentation maps, divided according to the local geology. To complete the methodology, the results were collected from both methods for comparison. The obtained product for this methodology was series of data whose different susceptibility degrees to flood wave and debris flow could define the safest route for a pipeline crossing in this watershed...

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A Atenção Farmacêutica (ATENFAR) nasceu oficialmente a partir do Consenso Brasileiro de Atenção Farmacêutica em 2002. Este define a prática de ATENFAR como um elemento da Assistência Farmacêutica. A Anemia Falciforme (AF) é a doença hereditária hematológica de maior prevalência no mundo, e os pacientes requerem Atenção Integral e cuidados especiais para melhor efetividade da farmacoterapia e melhoria de sua qualidade de vida. As complicações da doença são decorrentes da vaso-oclusão e abrangem diversos sistemas do organismo, incluindo baço, coração, encéfalo, pulmões e sangue, tais como as crises álgicas e infecções pneumocócicas. Medidas não-farmacológicas são eficazes na prevenção e tratamento das complicações menos intensas. Nesse contexto, a Educação Sanitária é ferramenta essencial para conscientizar os pacientes a respeito das características da doença e da promoção do uso correto de medicamentos. A complexidade do quadro clínico do paciente portador de AF e as dificuldades enfrentadas pelos mesmos no acesso a informações e tratamentos justificam a necessidade de um método de Atenção Farmacêutica específico para esses indivíduos. A metodologia desenvolvida consiste em um Questionário de Acompanhamento Farmacoterapêutico e abrange todos os aspectos pertinentes à saúde do paciente, à qualidade de vida e à farmacoterapia. Neste estudo piloto foram acompanhados seis pacientes portadores de AF; houve a identificação de 12 RNMs e foram efetuadas 39 intervenções farmacêuticas. As respostas do Questionário de Acompanhamento Farmacoterapêutico foram pontuadas e cada paciente foi classificado quanto à qualidade do seu estado de saúde, farmacoterapia e qualidade de vida. Houve avaliação de indicadores... (Resumo completo, clicar acesso eletrônico abaixo)

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A curcumina, um pigmento natural extraído do rizoma da Curcuma longa L. é utilizada em alimentos, principalmente aqueles condimentados com curry e açafrão. Vários estudos demonstram seu efeito benéfico em diversas doenças, tais como: diabetes, hepatopatias, câncer, entre outras. Uma de suas propriedades é a atividade antioxidante, pois em pequenas quantidades é capaz de inibir ou retardar processos oxidativos. Para substanciar o estudo desta propriedade, comparou-se a capacidade de captura de espécies reativas radicalares e não radicalares pela curcumina, com padrões (biomoléculas, exceto o trolox) antioxidantes: ascorbato, crocina, glutationa, quercetina, rutina, trolox e urato, em sistemas-modelo in vitro, sobre a captura dos radicais: 2-2'-azino-bis (3-etilbenzotiazolina-6-ácido sulfônico) (ABTS●+ ); 2,2-difenil-1 picril-hidrazila (DPPH● ); ânion radical superóxido (O2 ●-); HOCl/OCl- e H2O2. Investigou-se também seu efeito inibitório na geração do HOCl no sistema, mieloperoxidase (MPO)/H2O2/Cl- (via clorinante) e na inibição da oxidação do guaiacol MPO/H2O2/Guaiacol (via peroxidativa). A curcumina nos ensaios com ABTS●+ ou O2 ●-, apresentou o 3° menor IC50, 4,93 e 99,66 µmol/L, respectivamente; com o DPPH● apresentou o 6° menor IC50, 24,70 µmol/L; com o HOCl/OCl- apresentou o menor IC50, 1,12µmol/L e no ensaio com o H2O2 não atingiu o IC50. No ensaio com o sistema MPO/H2O2/Cl-, observou-se alteração da banda de absorção (bleaching) da curcumina (420 nm), além disso, nos ensaios com a via clorinante (MPO/H2O2/Cl-) e revelados com 3, 3’, 5, 5’- tetrametilbenzidina (TMB) e iodeto de potássio em meio ácido, observou-se aumento da absorbância (650 nm), o que impossibilitou o estudo de sua inibição nesta via. Entretanto, na via peroxidativa, observou-se uma diminuição significativa da absorbância do produto de oxidação... (Resumo completo, clicar acesso eletrônico abaixo)

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The obesity along with overweight has been considered one of the most serious public health problems in the world, especially because they are the main risk factors for many chronic diseases such as coronary heart disease, diabetes mellitus, hypertension and some types of tumors, which are associated with high mortality rates. The use of functional foods and appropriate diets to promote health has grown as a prevention mechanism. Previous studies suggested Bidens pilosa L. for the treatment of disorders associated with obesity, with one important attraction of this regiment is perceived as safer and more effective health than the traditional anorexigen .The aim of this project is to standardize a new model of obesity induced by hipercaloric diet in Swiss mice, and also to evaluate the effect of Bidens pilosa L. extract in the reduction of food intake, weight and toxicity. After induction of obesity, the animals were treated for 21 days with the extract. Then the animals were killed and samples were collected for further analysis. Preliminary, the effect of this product has being evaluated on the daily food intake and body weight. In dose of 100mg/Kg, there were no significant changes in food intake and body weight. Thus, this concentration of Bidens pilosa was not effective in reducing body weight of obese animals, and did not reduce food intake

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Pós-graduação em Biociências e Biotecnologia Aplicadas à Farmácia - FCFAR

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Atherosclerosis is a chronic inflammatory disease characterized by accumulation of lipid and fibrous components in arterial vessels, giving rise to atheromas. Development of Atheromatou plaques leads to arterial steatosis, triggering ischemic events. Atherotrombosis has a strong correlation with atherosclerosis, where rupture of atheromatous plaques cause release of vessel wall's pro-thrombotic components, activating platelet aggregation and thromosis. Due to the major role played by platelets on thrombus-embolic conditions, drugs that inhibit platelet aggregation demonstrate great relevance for atherothrombosis prevention, reducing patient mortality. Currently, there are a variety of drugs acting on several different targets, preventing platelet activation. However, these therapies demosntrate side effects such as thrombocytopenia, neutropenia, hemorrhage and low oral availability. Thus, the application of molecular modifications such as hybridization can produce novel, more efficient antiplatelet aggregation inhibitors. In this project we describe the synthesis and characterization of novel N-acilhydrazone compounds, acting through multiple mechanisms such as platelet calcium chelation and nitric oxide donation by furoxanic subunits. Furthermore, we demonstrate that such compounds exhibit biological activity in in vivo bleeding time, in vitro antiplatelet aggregation and in vivo antinociceptive assays. Therefore, novel N-acilhydrazone compounds demonstrate potential as antiplatelet drugs for atherothrombosis prevention.

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Objetivo: o objetivo desse estudo in vivo foi avaliar a influência da infiltração coronária no reparo apical de dentes de cães que receberam curativo de demora com hidróxido de cálcio e foram mantidos, ou não, em contato com o meio bucal. Métodos: após o preparo biomecânico e preenchimento com pasta de hidróxido de cálcio, 26 canais foram divididos aleatoriamente em dois grupos experimentais (Grupo 1 = selamento coronário com material restaurador temporário; Grupo 2 = não selados). Os animais foram sacrificados após 7 dias e os espécimes foram preparados para análise histológica. Resultados: em ambos os grupos, os resultados foram semelhantes, células inflamatórias não estavam presentes no tecido apical ou no cemento. Além disso, observou-se necrose na superfície do terço coronário do coto pulpar em contato com o hidróxido de cálcio, e microrganismos foram observados apenas em contato com resíduos que estavam presentes na câmara pulpar dos espécimes sem selamento, mas não no canal radicular. Conclusão: concluiu-se que o hidróxido de cálcio utilizado como curativo impediu a contaminação do canal radicular e manteve seu mecanismo de ação nos tecidos apicais, mesmo sem selamento coronário, por um período de 7 dias.