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| Registros recuperados: 41 | |
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| Bezerra,R.M.N.; Ueno,M.; Silva,M.S.; Tavares,D.Q.; Carvalho,C.R.O.; Saad,M.J.A.; Gontijo,J.A.R.. |
| Rats fed a high-fructose diet represent an animal model for insulin resistance and hypertension. We recently showed that a high-fructose diet containing vegetable oil but a normal sodium/potassium ratio induced mild insulin resistance with decreased insulin receptor substrate-1 tyrosine phosphorylation in the liver and muscle of normal rats. In the present study, we examined the mean blood pressure, serum lipid levels and insulin sensitivity by estimating in vivo insulin activity using the 15-min intravenous insulin tolerance test (ITT, 0.5 ml of 6 µg insulin, iv) followed by calculation of the rate constant for plasma glucose disappearance (Kitt) in male Wistar-Hannover rats (110-130 g) randomly divided into four diet groups: control, 1:3 sodium/potassium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: High-fructose diet; Insulin resistance; Blood pressure; Hypertriglyceridemia; Plasma cholesterol. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000900008 |
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| Colombo,G.; Bazzo,M.L.; Nogueira,C.L.; Colombo,M.D.H.P.; Schiavon,L.L.; d’Acampora,A.J.. |
| The interaction between ghrelin and adiponectin is still controversial. We investigated the effect of cafeteria diet and pioglitazone on body weight, insulin resistance, and adiponectin/ghrelin levels in an experimental study on male Wistar rats. The animals were divided into four groups of 6 rats each, and received balanced chow with saline (CHOW-O) or pioglitazone (CHOW-P), or a cafeteria diet with saline (CAFE-O) or pioglitazone (CAFE-P). The chow/cafeteria diets were administered for 35 days, and saline/pioglitazone (10 mg·kg body weight-1·day-1) was added in the last 14 days prior to euthanasia. CAFE-O animals had a higher mean final weight (372.5 ± 21.01 g) than CHOW-O (317.66 ± 25.11 g, P = 0.017) and CHOW-P (322.66 ± 28.42 g, P = 0.035) animals.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Insulin resistance; Adiponectin; Ghrelin; Thiazolidinediones. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001000008 |
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| Vargas,A.M.; Barros,R.P.A.; Zampieri,R.A.; Okamoto,M.M.; de Carvalho Papa,P.; Machado,U.F.. |
| The GLUT4 transporter plays a key role in insulin-induced glucose uptake, which is impaired in insulin resistance. The objective of the present study was to investigate the tissue content and the subcellular distribution of GLUT4 protein in 4- to 12-year-old control, obese and insulin-treated diabetic mongrel female dogs (4 animals per group). The parametrial white adipose tissue was sampled and processed to obtain both plasma membrane and microsome subcellular fractions for GLUT4 analysis by Western blotting. There was no significant difference in glycemia and insulinemia between control and obese animals. Diabetic dogs showed hyperglycemia (369.9 ± 89.9 mg/dl). Compared to control, the plasma membrane GLUT4, reported per g tissue, was reduced by 55% (P... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Diabetes; Obesity; Insulin resistance; GLUT4; Adipose tissue; Plasma membrane. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700020 |
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| Hernández-Salinas,Romina; Decap,Valerie; Leguina,Alberto; Cáceres,Patricio; Perez,Druso; Urquiaga,Ines; Iturriaga,Rodrigo; Velarde,Victoria. |
| BACKGROUND: Metabolic syndrome is a growing worldwide health problem. We evaluated the effects of wine grape powder (WGP), rich in antioxidants and fiber, in a rat model of metabolic syndrome induced by a high fructose diet. We tested whether WGP supplementation may prevent glucose intolerance and decrease oxidative stress in rats fed with a high fructose diet. METHODS: Male Sprague-Dawley rats weighing 180 g were divided into four groups according to their feeding protocols. Rats were fed with control diet (C), control plus 20 % WGP (C + WGP), 50 % high fructose (HF) or 50 % fructose plus 20 % WGP (HF + WGP) for 16 weeks. Blood glucose, insulin and triglycerides, weight, and arterial blood pressure were measured. Homeostasis model assessment (HOMA) index... |
| Tipo: Journal article |
Palavras-chave: Insulin resistance; Oxidative stress; Metabolic syndrome; Wine grape powder. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100053 |
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| Bulcão,C.; Giuffrida,F.M.A.; Ribeiro-Filho,F.F.; Ferreira,S.R.G.. |
| In addition to lipid-lowering and cardiovascular protective actions, statins may have beneficial effects on insulin sensitivity. The objective of the present study was to evaluate the effect of simvastatin therapy on insulin resistance and on leptin, adiponectin, and C-reactive protein (CRP) levels, as compared to metformin, in overweight pre-diabetic subjects. Forty-one subjects with BMI >25 kg/m² and impaired fasting glucose or impaired glucose tolerance were randomized to take simvastatin, 20 mg/day (N = 20) or metformin, 1.7 g/day (N = 21) for 16 weeks. Blood samples for the determination of metabolic, hormonal, and inflammatory parameters were obtained at baseline and after each treatment. After metformin therapy, significant reductions in mean BMI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simvastatin; Metformin; Insulin resistance; Leptin; Adiponectin. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200009 |
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| Araújo,L.M.B.; Porto,M.V.; Netto,E.M.; Ursich,M.J.. |
| Acanthosis nigricans (AN) has been recognized as a marker of insulin resistance and diabetes mellitus. We have compared frequency of race and metabolic disturbances in obese women with several degrees of AN (AN group, N = 190) to a group without AN (non-AN group, N = 61) from a mixed racial population. The groups were similar regarding age and body mass index. All patients (except the diabetic patients) underwent an oral glucose tolerance test (75 g). The racial distribution of this population was 35.1% white, 37.8% mulatto and 27.1% black and the frequency of AN was 62.5, 82.1 and 83.8%, respectively, higher in black versus white (P = 0.003) and mulatto versus white (P = 0.002) women. The frequencies of diabetes mellitus and impaired glucose tolerance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acanthosis nigricans; Race; Obesity; Insulin resistance; Hyperinsulinism. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000100008 |
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| Zhang,W.-J.; Chen,L.-L.; Zheng,J.; Lin,L.; Zhang,J.-Y.; Hu,X.. |
| Our objective was to examine associations of adult weight gain and nonalcoholic fatty liver disease (NAFLD). Cross-sectional interview data from 844 residents in Wan Song Community from October 2009 to April 2010 were analyzed in multivariate logistic regression models to examine odds ratios (OR) and 95% confidence intervals (CI) between NAFLD and weight change from age 20. Questionnaires, physical examinations, laboratory examinations, and ultrasonographic examination of the liver were carried out. Maximum rate of weight gain, body mass index, waist circumference, waist-to-hip ratio, systolic blood pressure, diastolic blood pressure, fasting blood glucose, cholesterol, triglycerides, uric acid, and alanine transaminase were higher in the NAFLD group than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: China; Diabetes; Insulin resistance; Lipidosis; Nonalcoholic fatty liver disease; Obesity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000200151 |
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| Asano,R.Y.; Browne,R.A.V.; Sales,M.M.; Arsa,G.; Moraes,J.F.V.N.; Coelho-Júnior,H.J.; Moraes,M.R.; Oliveira-Silva,I.; Atlas,S.E.; Lewis,J.E.; Simões,H.G.. |
| The aim of this study was to analyze the acute responses of bradykinin, insulin, and glycemia to exercise performed above and below lactate threshold (LT) in individuals with type 2 diabetes mellitus (T2D). Eleven participants with a diagnosis of T2D randomly underwent three experimental sessions 72 h apart: 1) 20 min of exercise performed at 120% of LT (120%LT), 2) 20 min of exercise performed at 80% of LT (80%LT), and 3) 20 min of control session. Blood glucose was analyzed before, during, and at 45 min post-exercise. Bradykinin and insulin were analyzed before and at 45 min post-exercise. Both exercise sessions elicited a parallel decrease in glucose level during exercise (P≤0.002), with a greater decrease being observed for 120%LT (P=0.005). Glucose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metabolic disease; Aerobic exercise; Peptide; Insulin resistance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001100607 |
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| Hoffman,Rhonda M.. |
| Horses evolved consuming primarily fermentable forage carbohydrates, but forage diets have been traditionally supplemented with grain meals rich in starch and sugar in order to provide additional calories, protein and micronutrients. Starch and sugar are important for performance horses, but the consumption starch-rich meals may cause equine digestive and metabolic disorders. The critical capacity for preileal starch digestibility appears to be 0.35 to 0.4% but may be as little, depending on the source of starch. Small intestinal absorption of simple sugars is limited by the activity and expression of two classes of glucose carrier proteins, which are affected by chronic intake of hydrolyzable carbohydrate but may be sluggish to respond to abrupt changes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carbohydrate metabolism; Glucose; Horse; Insulin resistance. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001300027 |
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| Gandarillas,Monica; Matus,José Tomás; Márquez-Hernández,Roberto I; Vargas-Bello-Pérez,Einar. |
| In horses, insulin resistance is associated with several comorbidities such as obesity, laminitis, colic and osteochondrosis. The multifactorial causes of insulin resistance in horses have been addressed, which include genetic and environmental factors. As a consequence of these factors, the cellular signaling pathways responsible for insulin synthesis, the glucose intake in target cells of peripheral tissues and other related processes (e.g., adipocytokine signaling pathways) are affected. In response to insulin, changes in gene expression occur, which are required for the integration of an entire network of metabolic and physiological responses in different organs. The peroxisome proliferator-activated receptors (PPARs) were the particular focus of... |
| Tipo: Journal article |
Palavras-chave: Equine nutrition; Insulin resistance; PPAR-gamma. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000200001 |
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| Yao,Jiayin; Zhi,Min; Gao,Xiang; Hu,Pinjin; Li,Chujun; Yang,Xiaobo. |
| Our previous study has shown that reduced insulin resistance (IR) was one of the possible mechanisms for the therapeutic effect of silibinin on non-alcoholic fatty liver disease (NAFLD) in rats. In the present study, we investigated the pathways of silibinin in regulating hepatic glucose production and IR amelioration. Forty-five 4- to 6-week-old male Sprague Dawley rats were divided into a control group, an HFD group (high-fat diet for 6 weeks) and an HFD + silibinin group (high-fat diet + 0.5 mg kg-1·day-1 silibinin, starting at the beginning of the protocol). Both subcutaneous and visceral fat was measured. Homeostasis model assessment-IR index (HOMA-IR), intraperitoneal glucose tolerance test and insulin tolerance test (ITT) were performed. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Non-alcoholic fatty liver disease; Insulin resistance; Silibinin; Visceral obesity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000300270 |
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| Yao,Jiayin; Zhi,Min; Minhu,Chen. |
| Silybin, a natural antioxidant, has been traditionally used against a variety of liver ailments. To investigate its effect and the underlying mechanisms of action on non-alcoholic fatty liver in rats, we used 60 4-6-week-old male Sprague-Dawley rats to establish fatty liver models by feeding a high-fat diet for 6 weeks. Hepatic enzyme, serum lipid levels, oxidative production, mitochondrial membrane fluidity, homeostasis model assessment-insulin resistance index (HOMA-IR), gene and protein expression of adiponectin, and resistin were evaluated by biochemical, reverse transcription polymerase chain reaction (RT-PCR) and Western blot analysis. Compared with the model group, silybin treatment (26.25 mg·kg-1·day-1, started at the beginning of the protocol)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Non-alcoholic fatty liver disease; Mitochondrial membrane fluidity; Lipid peroxidation; Insulin resistance; Silybin. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000700007 |
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| Castillo,C.A.; Jaramillo,C.; Loaiza,M.J.; Blanco,R.. |
| ABSTRACT The equine metabolic syndrome is a condition that can be recognized because of obesity, insulin resistance and laminitis. Genetic factors could play a role in the occurrence of this syndrome. Certain breeds such as ponies (including the South American creole horses) have a lower sensibility to insulin and a higher prevalence of hyperinsulinemia. The environment and management conditions, such as overfeeding and lack of exercise are factors that bring a propensity for obesity. The adipose tissue works as an endocrine organ producing hormones (adipokines or adipocytokines) that affect the horse´s metabolism. The objective of this report is to describe the first case report of a Colombian creole mare with a metabolic syndrome, diagnosed by means of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equine; Insulin resistance; Obesity; Laminitis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000501067 |
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| Registros recuperados: 41 | |
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