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Efeitos do treinamento físico de alta intensidade sobre os leucócitos de ratos diabéticos
Oliveira, Camila Aparecida Machado de;Rogatto, Gustavo Puggina;Luciano, Eliete;
Revista Brasileira de Medicina do Esporte , 2002, DOI: 10.1590/S1517-86922002000600003
Abstract: several studies have demonstrated that regular physical activity improves diabetes conditions, favoring the peripheral glucose uptake, glycogen and protein metabolism. however, the effects of high intensity physical training on the immune system of diabetic organisms are not totally clear. the aim of this study was to verify the effects of high intensity physical training on the total and differential leukocyte count of diabetic rats. male young wistar rats were distributed into four groups: sedentary control (sc), trained control (tc), sedentary diabetic (sd) and trained diabetic (td). diabetes was induced by alloxan (30 mg/kg body weight i.v.). during six weeks the animals of tc and td groups followed a high intensity physical training protocol which consisted of four sets of 10 jumps/day (interrupted by one minute of rest interval) in a swimming pool, with the water level corresponding to 150% of the body length and overload equivalent to 50% of the body weight. at the end of the experimental period, blood samples were collected for total and differential leukocyte count. the results were analyzed by anova at a significance level of 5%. serum glucose was increased in diabetic groups while the insulin level was reduced in these groups. there were no significant differences in lymphocytes, neutrophils, and eosinophils, and in total leukocyte count when the groups were compared. monocytes count was higher in both trained groups (sc = 10.0 ± 4.5, tc* = 25.4 ± 7.9, sd = 19.75 ± 7.4, td* = 25.8 ± 4.4%). the relative weight of the thymus was reduced by diabetes and training (sc = 125.0 ± 37.7, tc* =74.6 ± 8.2, sd* = 47.5 ± 12.2, td* = 40.1 ± 16.9). in conclusion, the high intensity physical training protocol did not change the general diabetes conditions, but improved relative monocytes. these results can represent a positive effect on the immune response.
Efeitos do treinamento físico de alta intensidade sobre os leucócitos de ratos diabéticos
Oliveira Camila Aparecida Machado de,Rogatto Gustavo Puggina,Luciano Eliete
Revista Brasileira de Medicina do Esporte , 2002,
Abstract: Estudos têm demonstrado que o exercício físico regular melhora as condi es do diabetes, facilitando a capta o periférica da glicose e o metabolismo de glicogênio, proteínas, etc. Por outro lado, pouco se conhece sobre os efeitos do exercício intenso em diabéticos, principalmente com rela o ao sistema imune desses organismos. O presente estudo teve como objetivo verificar os efeitos de um treinamento físico de alta intensidade sobre a contagem total e diferencial de leucócitos em ratos diabéticos. Ratos machos jovens Wistar foram distribuídos em quatro grupos: controle sedentário (CS), controle treinado (CT), diabético sedentário (DS) e diabético treinado (DT). O diabetes foi induzido por aloxana (35mg/kg de peso corporal). Durante seis semanas os animais dos grupos CT e DT realizaram um protocolo de treinamento físico, que consistiu na realiza o de quatro séries de 10 saltos (intercaladas por um minuto de intervalo) em piscina, com o nível da água correspondendo a 150% do comprimento corporal e sobrecarga equivalente a 50% da massa corporal dos animais. Ao final do período experimental, amostras de sangue foram coletadas para a contagem total e diferencial dos leucócitos. Os resultados foram avaliados estatisticamente por ANOVA com um nível de significancia de 5%. A glicemia foi aumentada entre os diabéticos e a insulinemia diminuída. N o foram observadas diferen as significativas na contagem diferencial dos linfócitos, neutrófilos, eosinófilos e contagem total de leucócitos entre os grupos estudados. Houve aumento dos monócitos entre os treinados (CS = 10,0 ± 4,5, CT* = 25,4 ± 7,9, DS = 19,75 ± 7,4, DT* = 25,8 ± 4,4%). O peso relativo do timo foi reduzido pelo treinamento e pelo diabetes (CS = 125,0 ± 37,7, CT* = 74,6 ± 8,2, DS* = 47,5 ± 12,2, DT* = 40,1 ± 16,9mg/100g). Esses resultados permitem concluir que o treinamento físico de alta intensidade n o alterou o estado geral do diabetes, mas aumentou os monócitos, o que pode representar um efeito positivo sobre a resposta imunológica desses animais.
Influência do treinamento físico sobre parametros do eixo hipotálamo-pituitária-adrenal de ratos administrados com dexametasona
Pauli,J. Rodrigo; Leme,José; Crespilho,Daniel; Mello,M. Alice; Rogatto,Gustavo; Luciano,Eliete;
Revista Portuguesa de Ciências do Desporto , 2005,
Abstract: the aim of present study was to investigate the influence of acute and chronic physical exercise on the hypothalamo-pituitary-adrenal axis in wistar rats administered with dexamethasone. young wistar rats were divided into four groups: sedentary control (cs), sedentary dexamethasone (dxs), trained control (ct) and trained dexamethasone (dxt). training protocol consisted of swimming 1h/day, 5 days/week, during 10 weeks, supporting a load of 5% of their body weight. dexamethasone was administered 5 times for week (2μg/day in 150μl 0,9% nacl). before sacrifying the rats each received a subcutaneous insulin to calculate the maximum decreased in blood glucose. venous blood samples were obtained at the end of the experimental period to determine serum glucose and acth. gastrocnemius, adrenal and adipose epididimal tissues? samples were used to determine weight, glycogen and ascorbic acid concentration, respectively. data suggests that chronic exposure to dexamethasone was associated with decreased insulin sensitivity. the dexametasona treatment decreased acth release in response to acute exercise, showing marked differences in the functioning of the crh-acth-adrenal axis between groups of rats. in conclusion, exercise can override the dexamethasone negative feedback of hypothalamo-pituitary-adrenal axis activation in rats.
Glicocorticóides e síndrome metabólica: aspectos favoráveis do exercício físico nesta patofisiologia
Pauli,J. Rodrigo; Souza,Luciana; Rogatto,Gustavo; Gomes,Ricardo; Luciano,Eliete;
Revista Portuguesa de Ciências do Desporto , 2006,
Abstract: the metabolic syndrome has several similarities with cushing's syndrome (impaired glucose tolerance, insulin resistance, hypertension, dyslipidemia, central obesity) suggesting that abnormalities in the glucocorticoid metabolism have a link with the metabolic syndrome. on the other hand, regular physical activity provides several health benefits helping in prevention and rehabilitation of cardiovascular and other chronic diseases. epidemiological studies have been demonstrating a direct relationship between physical inactivity and the multiple risk factors such as those found in the metabolic syndrome. otherwise, it has been demonstrated the physical exercise benefit to prevent and treat arterial hypertension, insulin resistance, diabetes, dislipidemy, and obesity. this review will discuss the metabolic effects in the context of glucocorticoid metabolism and establish the association of glucocorticoid action with the features of the metabolic syndrome, specially obesity and insulin resistance. moreover, we will explore how physical activity promotes favorable physiologic adaptations improving quality of life in the abnormalities metabolic association with the excess of glucocorticoid.
Respostas fisiológicas ao exercício agudo em ratos obesos tratados com metformina
Araujo, Gustavo Gomes de;Araújo, Michel Barbosa de;Mota, Clécia Soares de Alencar;Ribeiro, Carla;D'Angelo, Ricardo Antonio;Manchado, Fúlvia de Barros;Luciano, Eliete;
Revista Brasileira de Medicina do Esporte , 2007, DOI: 10.1590/S1517-86922007000600007
Abstract: the purpose of the present study was to investigate the physiological responses to intense exercise in obese wistar rats treated with metformin. to induce obesity, all animals were infused with monosodic glutamate (4 mg/g of body weight) via subcutaneous injection. the rats were divided in 4 groups according to the received treatment: obese control (oc); obese metformin ( om); obese control exercise (oce) and obese metformin exercise (ome). before and after one session of intense exercise the following parameters were measured: serum glucose (mg/dl), triglycerides (g/100g), total cholesterol (mg/dl) and haematocrit (%). the values of serum glucose and total cholesterol were significantly reduced in control exercise group (oce - 68.4 ± 14.7 and 70.8 ±18.3) compared to obese control sedentary group (oc - 83.6 ± 12.8 and 91.3 ± 9.6). the isolate metformin infusion decreased the glucose concentration from 83.6 ± 12.8 (oc) to 70.8 ± 5.9 (om). on the other hand, metformin associated with exercise increased the availability of free triglycerides after exercise (om - 166.6 ± 11.3, ome - 184.0 ± 4.3). in conclusion, the present intervention program (intense physical exercise) showed to be efficient on glicemic homeostasis, as well as on lipids circulatory levels in obese rats treated with metformin.
Comparative Effects of Physical Training and Metformin in Diabetic Rats
Rafael Fernando Silveira, José Alexandre Curiacos de Almeida Leme, Cirval Correa de Almeida Junior, Ricardo José Gomes, Clarice Yoshiko Sibuya, Maria Alice Rostom de Mello and Eliete Luciano
The Open Clinical Chemistry Journal , 2008, DOI: 10.2174/1874241600801010013]
Abstract: Diabetes mellitus is a metabolic disease associated with multiple organ damage, dysfunction and failure. Metformin is widely used to treat diabetes, but regular exercise also improves metabolic control in diabetic individuals and has an important role in the management of this disease. In this work, we compared the effects of metformin and physical training in diabetic male Wistar rats. Four groups of rats were used: (n=6 per group): sedentary control (SC), sedentary diabetic (SD), trained diabetic (DT) and metformin diabetic (MD). Diabetes was induced with alloxan (30 mg/kg, b.w.). The physical training protocol consisted of a 1 h swimming session/day, five days/week for eight weeks with a load corresponding to 5% of the body weight. Metformin treatment consisted in 1.4 mg/ml per day, administered in the drinking water. At the end of the experimental period, the rats were sacrificed and blood was collected to measure serum glucose, insulin and albumin. Glycogen was quantified in gastrocnemius muscle, liver and heart, the protein/DNA ratio was mensured in liver and heart triglycerides was also measured in the heart. Diabetes reduced the serum insulin and liver glycogen levels and the protein/DNA ratio, but increased the serum glucose and heart glycogen levels; there were no significant variations in serum albumin levels. Physical training increased the muscle glycogen level. Physical training and metformin were equally effective in reducing the serum glucose concentration and in restoring the hepatic and cardiac glycoge stores and the hepatic protein/DNA ratio in diabetic rats. These results show that chronic exercise was as effective as metformin in improving the metabolic profile of diabetic rats and in preventing diabetes-induced alterations.
Análise de ácidos graxos em plasma humano
Visentainer, Jeane Eliete Laguila;
Revista Brasileira de Hematologia e Hemoterapia , 2010, DOI: 10.1590/S1516-84842010000600003
Abstract: in this issue of the journal, the study by morais et al. (2010) evaluated four classical methodologies of lipid extraction (methods of folch, bligh-dyer, rose-gottlieb and gerber), and an alternative technique, in order to evaluate the efficiency of extraction and fatty acid composition of human plasma. the alternative method proposed by the authors used the microwave oven as a tool, and was considered very fast in lipid extraction and identification of fatty acids, but not in their quantification. the most suitable extraction method for quantification of fatty acids in human plasma was the method of folch.
Testes prognósticos de rejei o e doen a do enxerto contra o hospedeiro em transplantes de células progenitoras hematopoiéticas com doadores HLA idênticos
Visentainer Jeane Eliete Laguila
Revista Brasileira de Hematologia e Hemoterapia , 2003,
Abstract:
CONSUMO INFANTIL
Eliete Ferreira Guedes
Revista PRETEXTO , 2001,
Abstract:
Editorial Editorial
Eliete Vaz de Faria
Brazilian Journal of Food Technology , 2011, DOI: 10.1590/s1981-67232011000400001
Abstract:
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