185 resultados para Diabetes Mellitus Experimental
Resumo:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Resumo:
Over the last decades, the prevalence of diabetes mellitus (DM) has been increasing globally such that nowadays the disease constitutes an important outcome related to early mortality among adults. In parallel with the high prevalence, healthcare costs related to DM treatment have increased significantly, exacerbating its burden on modern society. The scientific literature points out that obesity and physical inactivity have a central role in the development of most DM cases. In fact, either physical exercise practice or an increase in the level of physical activity, constitute relevant tools in the guidelines for treatment of the disease. On the other hand, the effect of physical activity on the economic consequences of DM is not completely clear. The identification of the actual burden of lifestyle changes on the reduction of healthcare costs related to DM is relevant, primarily for developing nations, where it could represent a cheaper strategy for treating the disease and its complications than paying for drug treatment, which is commonly related to collateral effects. That being said, the prevention of DM and other diseases and consequently the mitigation of the costs related to these outcomes seem to depend essentially on the promotion of healthy habits. The aim of the present review was therefore to discuss recent evidence on the effects of physical activity/exercise on mitigation of health care cost related to DM.
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Pós-graduação em Saúde Coletiva - FMB
Resumo:
Pós-graduação em Fisiopatologia em Clínica Médica - FMB
Resumo:
Introduction: Pathological changes in the bucal cavity associated with Diabetes mellitus (DM) may include gingivitis, periodontal disease, salivary gland dysfunction and xerostomia (dry mouth), susceptibility to bucal infections, burning mouth syndrome, and altered taste. Objective: This study assessed the technical and scientific knowledge of dentists working in primary care in the National Health System (SUS) on the DM. Material and method: The study was conducted in the municipalities of Birigui-SP, Maringá-PR and TrêsLagoas-MS, with the participation of 76 dentists working in the SUS primary care system.These professionals agreed to answer to a questionnaire developed for this study and the results of the questions were submitted to a quantitative analysis. Result: Showed that 94.7% were in contact with diabetic patients; 97.4% know what is DM; about other types of DM, 77.6% said they know, the most mentioned (by 55.9%) was the gestational DM. The DM2 was indicated as the most prevalent by 59.2%; the normal range of fasting blood glucose level was quoted correctly by 2.6% of the participants; obesity was reported by 98.7% of participants as a risk factor for DM; 96.0% stated correctly what are the main signs and symptoms related to Diabetes; periodontal disease was reported by 92.1% as an bucal manifestation in diabetic patients. Conclusion: The dentist needs to develop specific knowledge about DM, being able to identify normal levels of blood glucose and ready to identify and meet the bearer of DM.
Resumo:
Alterations in maternal metabolism are important in order to supply the demands of the fetus. However, pregnant women with some degree of insulin resistance, such as in cases of overweight/obesity, central obesity and polycystic ovaries syndrome, associated to the action of anti-insulin placental hormones, contribute to a case of hyperglycemia of varied intensity, characterizing gestational diabetes mellitus (GDM) and leading to adverse effects both maternal and fetal. At the absence of a universal consensus to the tracking and diagnosis of GDM, this review had the purpose of listing the various protocols that have been proposed, as well as highlighting the risk factors associated with GDM and its complications. The most recent protocol is the one from the American Diabetes Association, with changes that would be justified by the alarming raise in worldwide obesity and, consequently, the potential increase to the occurrence of type 2 diabetes mellitus, not always diagnosed before the gestational period. The intention of this protocol is to identify the gestating women that could benefit from hyperglycemia control, improving the prognostic of these pregnancies and preventing future complications for mothers and their children.
Resumo:
Influence of weight, volume and absolute placental density on the weight of newborns of pregnant women with arterial hypertension or Diabetes Mellitus
Resumo:
Pós-graduação em Odontologia - FOAR
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
OBJETIVO: Avaliar o número de podócitos e espessamento da membrana basal glomerular (MBG) em ratos diabéticos com e sem controle glicêmico com 6 e 12 meses da indução. MÉTODOS: 100 ratos Wistar com 200-300g compuseram 6 grupos: Normal (N6, N12 - 25 animais) Diabético (D6,D12 - 25 animais) e diabético tratado com insulina 1,8 a 3,0 U/Kg e acarbose misturada a ração (50g para cada 100g de ração) (DT6 e DT12 - 25 animais). Aloxana foi ministrada via endovenosa na dose de 42mg/Kg. Peso, ingestão hídrica e diurese de 24 horas e glicemia e glicosúria foram determinados antes da inoculação, 7 e 14 dias após e mensalmente. No 14ª dia foi iniciado o tratamento. Três grupos de animais (N6, D6 e DT6) foram sacrificados no 6° mês e três grupos (N12, D12 e DT12), no 12ª mês sendo o tecido renal processado para estudo à microscopia eletrônica. RESULTADOS: A glicemia dos animais DT6 e DT12 diferiram significativamente, dos ratos D6 e D12, e não diferiram dos grupos N6 e N12. O número de podócitos do grupo DT6 não diferiu de N6 e D6 (mediana=11); o número de podócitos de DT12 (mediana=11) diferiu de D12 (mediana=8) e não diferiu de N12 (mediana=11). O espessamento da MBG de D6 (0,18 micrômetros) foi menor que D12 (0,29 micrômetros); de DT6 (0,16 micrômetros) foi menor que D6 (0,18 micrômetros) e de DT12 (0,26 micrômetros) foi menor que D12 (0,29 micrômetros). CONCLUSÃO: O controle da hiperglicemia preveniu o espessamento da MBG na nefropatia diabética aloxânica precoce (6 meses) e tardia (12 meses), e a diminuição do número de podócitos.
Resumo:
OBJETIVO: Conhecer os efeitos do diabetes e o impacto de seu tratamento medicamentoso em curto e longo prazo sobre os vasos da coróide e membrana de Bruch. MÉTODOS: Foram estudados 30 ratos Wistar, divididos em 3 grupos experimentais: grupo controle (GC), grupo diabético (GD) e grupo diabético tratado (GT), estudados 1 mês (momento M1) e 12 meses (momento M2) após o início do experimento. O diabetes foi induzido por aloxana endovenosa, na dose de 42 mg/kg. O GT foi tratado com hipoglicemiante oral (acarbose) e insulina subcutânea. Após o sacrifício, os olhos foram preparados para exame ao microscópio eletrônico de transmissão, interessando a ultra-estrutura da membrana de Bruch e os vasos da coróide. RESULTADOS: O exame ultra-estrutural da coróide dos ratos diabéticos mostrou depósitos na membrana de Bruch, acúmulo de vesículas, glicogênio e corpos densos no citoplasma das células endoteliais. O grupo mais afetado foi de ratos diabéticos de 12 meses (GDM2). Os animais com menor intensidade de alterações foram os ratos tratados por 12 meses (GTM2). CONCLUSÃO: Os ratos diabéticos desenvolveram alterações degenerativas na membrana de Bruch e vasos da coróide. Estas alterações foram mais evidentes nos animais submetidos à doença crônica, mas também ocorreram agudamente. O tratamento a curto prazo não foi capaz de evitar os processos degenerativos. A longo prazo, o tratamento inibiu a progressão destes processos.
Resumo:
These experiments were carried out to study the effects of acute cold exposure (0-2°C/4 hr) on rectal temperature, blood glucose and plasma free fatty acids (FFA) in alloxan-diabetic rats. Male Wistar rats weighing 170-190 g were used and diabetes was induced by i.v. alloxan injection (40 mg/kg body wt). Cold exposure produced severe hypothermia in diabetic rats. After 4 hr of cold, blood glucose of diabetic rats was reduced from 296±16 to 86t±12 mg/dl (P<0.01), and FFA increased slightly, but was not statistically different (P>0.05) from the initial value. As expected, interscapular brown adipose tissue (IBAT) and retroperitoneal and epididymal white adipose tissues were significantly lower in diabetic than in control rats. Cold exposure reduced total IBAT lipids in control but not in diabetic animals. The results of this experiment suggest that diabetic rats were unable to maintain body temperature in the cold, probably because of a failure to generate an adequate amount of heat by nonshivering thermogenesis in brown adipose tissue.