39 resultados para METABOLIC DISEASES


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Pós-graduação em Medicina Veterinária - FMVZ

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Enfermagem (mestrado profissional) - FMB

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Peripartum or Transition Period is, generally, defined as the period between three weeks pre-calving and three weeks after calving. It is a critical and crucial stage to the cow’s health and to economic profitability during the lactation. During this phase the cows experience several changes that prepare them to calve and milk yield. These changes contribute to metabolic disorders’ incidence, and can lead to reproductive function and milk yield reduction, and increase the herd’s disposal. This paper aimed to review the peripartum metabolic diseases, which includes Ketosis, Hypocalcemia, Hepatic Steatosis, Ruminal Acidosis and Lameness

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Antioxidants are substances that may protect cells from the damage caused by unstable molecules known as free radicals. The capacity of natural antioxidant from phytochemical has increase attention from researchers and public. However, the extraction process is affecting the activity and the bioavailability of bioactive compounds. The Solanum lycocarpum is a plant of the Brazilian “cerrado”, popularly used as a hypoglycemic, hypocholesterolemic and control of metabolic diseases. Its effects are attributed to the presence of several glycoalkaloids (solamargine, solasonina) and solasodine. Therefore, the purpose of this communication was, investigate the optimization of extraction condition and evaluation of antioxidant activity from fruits of Solanum lycocarpum. The extracts were obtained using different solvent systems, i.e., water, 50% ethanol, ethanol absolute and ethyl ether (1:10 and 1:20) and different extraction processes: maceration with constant agitation at room temperature, maceration with constant agitation and heating at 30°C and ultrasound. The extracts were characterized by the amount of material extracted (1, 6 and 24 h) and the action of antioxidant activity by DPPH method. The results showed that the polar solvent (50% ethanol) and extractive process maceration with agitation to ambient temperature showed higher contents of extractable of fruits of S. lycocarpum (3.4 g %) and also showed higher antioxidant activity (88.57±2.41% de inhibition). This action whether the presence of glycoalkaloids (solamargine, solasonine and solasodine) in fruits S. lycocarpum which are polar compounds and may explain this increased antioxidant action of this extract.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Introduction: Fructose is a simple carbohydrate that should be ingested in a restricted manner. However, current data suggest increased daily consumption of fructose which may lead to an increased incidence of diseases such as obesity, diabetes and co-morbidities associated with excess weight. Thus, the objective of the present study was to assess the effect of the ingestion of different fructose sources on weight gain, glycemia and serum triglyceride levels in rats.Methods: The study was conducted on male Wistar rats divided into 5 groups according to the source and concentration of fructuse (ingested ad libitum in liquid form).Results: Drink intake was increased and chow consumption was reduced in all groups compared to control (p<0.05). The animals of the groups receiving 10 and 20% fructose solutions showed increased triglyceride levels and the 20% group also showed weight gain. The exaggerate consumption of fructose promotes a reduced consumption of chow, an increase in serum triglyceride levels, and weight gain in some animals.

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Background: An increase in the prevalence of obesity entails great expenditure for governments. Physical exercise is a powerful tool in the combat against obesity and obesity-associated diseases. This study sought to determine the effect of three different exercise protocols on metabolic syndrome and lipid peroxidation markers and the activity of antioxidant enzymes in adult Wistar rats (120 days old).Methods: Animals were randomly divided into four groups: the control (C) group was kept sedentary throughout the study; the aerobic group (A) swam1 h per day, 5 days per week, at 80% lactate threshold intensity; the strength group (S) performed strength training with four series of 10 jumps, 5 days per week; and the Concurrent group (AS) was trained using the aerobic protocol three days per week and the strength protocol two days per week.Results: Groups A and S exhibited a reduction in body weight compared to group C. All exercised animals showed a reduction in triglyceride concentrations in fatty tissues and the liver. Exercised animals also exhibited a reduction in lipid peroxidation markers (TBARS) and an increase in serum superoxide dismutase activity. Animals in group A had increased levels of liver catalase and superoxide dismutase activities.Conclusions: We concluded that all physical activity protocols improved the antioxidant systems of the animals and decreased the storage of triglycerides in the investigated tissues.