Active clinical trials for "Hyperlipidemias"

Cardiovascular Diseases (CVDs) are the leading causes of death in the world and in Brazil. In 2001, 12.45 million deaths on the globe (21% of the total) were caused by some CVD. The composition of modern man's diet has changed drastically with the industrialization of food, resulting in the transition from a diet rich in fibers and complex carbohydrates to one with a high content of sugars and fats. Since the current dietary pattern is characterized by the consumption of three or more meals a day, containing a quantity of fat in the range of 20 to 70 g, individuals spend a large part of the day in the postprandial state, with continuous fluctuation of lipemia Over 18 hours. Food intake (postprandial state) is the dynamic, unstable response of the body that refers to rapid hormonal and lipoprotein remodeling. It is well established in the literature that high-fat meals (lipid overload) cause an increase in plasma triglycerides. Hypertriglyceridemia and / or elevated triglyceride-rich lipoproteins (LRT) (chylomicrons, VLDL and their remnants) in the postprandial state induces endothelial dysfunction via increased oxidative stress and is an independent risk factor for CVDs. Therefore, Postprandial Lipemia (PPL) is counted as an early marker of atherosclerotic process, metabolic abnormalities and endothelial dysfunction. High-carbohydrate (CHO) diets may promote increased LDL-c, TG, VLDL and HDL-c reduction, as well as PPL, generating a lipid profile associated with an increased risk of CVDs. This effect appears to be more pronounced with the inclusion of simple carbohydrates (mono and disaccharides), although it also occurs with diets rich in complex carbohydrates (polysaccharides). High fructose diets (HFDs) are a known model of induction of insulin resistance, dyslipidemia and DM2 in primates and humans. The chronic effect of fructose consumption has been well studied in the last decades due to its connection with obesity, resistance to Insulin, accumulation of visceral fat and dyslipidemia. As the consumption of fructose is progressively increasing in society and its chronic exposure can generate a phenotypic effect of dyslipidemia and, consequently, the increased risk of CVDs, prevention and treatment strategies should be seen as an important public health issue . Thus, the objective of this study is to understand the effects of exercise on fat metabolism, since there is a lack of robust evidence about the possible cardioprotective and hypolipemic role of the same on HFD.

Cardiovascular disease (CVD) is one of the most important and frequent causes of death. Postprandial lipidemia (PPL) is an independent risk factor for CVD, besides the traditional risk factors e.g. hypertension, high LDL-cholesterol, family disposition of CVD and type 2 diabetes (T2D). A high PPL is associated with an increased risk of myocardial infarction and stroke. Reduction of increased PPL, as a part of CVD prevention, is therefore pivotal. Especially in groups with increased risk of CVD, like the metabolic syndrome (MeS) and T2D. Identification of a simple diet-related method will possibly result in reduction of CVD in healthy as well as high-risk subjects. The aim of this project is to investigate the effect whey protein consumed as pre-meal prior to a fat-rich meal on responses of triglycerides and apolipoprotein B48 (ApoB48) in subjects with type 2 diabetes compared to healthy subjects. Secondarily the aim is to study the responses of glucose, insulin, glucagon, amino acids, inflammatory markers, incretins, rate of gastric emptying and metabolomics. Also satiety feeling will be measured. Investigators hypothesize that whey protein consumed 15 minutes prior to a fat-rich isocaloric meal reduces triglyceride- and ApoB48 responses more in type 2 diabetic subjects compared to healthy subjects. The investigators research will hopefully contribute to a better understanding of how PPL can be modified in a simple manner. It will promote innovation to the food industry for development and production of healthy food products, which can be applied in the fight against CVD in the background population in general and high-risk people in particular. Thus, the results of this project can impart knowledge of great importance both to the national and international food industry as well as the healthcare systems.

Cardiovascular disease (CVD) is one of the most important and frequent causes of death. Postprandial lipidemia (PPL) is an independent risk factor for CVD, besides the traditional risk factors e.g. hypertension, high LDL-cholesterol, family disposition of CVD and type 2 diabetes (T2D). A high PPL is associated with an increased risk of myocardial infarction and stroke. Reduction of increased PPL, as a part of CVD prevention, is therefore pivotal. Especially in groups with increased risk of CVD, like the metabolic syndrome (MeS) and T2D. Identification of a simple diet-related method will possibly result in reduction of CVD in healthy as well as high-risk subjects. The aim of this project is to investigate the effect of protein quality and the time factor of protein consumed as pre-meal prior to a fat-rich meal on responses of triglycerides and apolipoprotein B48 (ApoB48). Secondarily the aim is to study the responses of glucose, insulin, glucagon, amino acids, inflammatory markers, incretins, rate of gastric emptying and metabolomics. Also satiety feeling will be measured. Investigators hypothesize that whey protein consumed 15 minutes prior to a fat-rich isocaloric meal reduces triglyceride- and ApoB48 responses more compared to casein protein and gluten protein consumed 15 minutes prior to the meal and whey protein consumed 30 minutes prior to the meal in subjects with MeS. The investigators research will hopefully contribute to a better understanding of how PPL can be modified in a simple manner. It will promote innovation to the food industry for development and production of healthy food products, which can be applied in the fight against CVD in the background population in general and high-risk people in particular. Thus, the results of this project can impart knowledge of great importance both to the national and international food industry as well as the healthcare systems.

The investigators propose to evaluate the effects of avocado consumption (by incorporating 1 unit of fruit per day into a healthy diet) on multiple cardiovascular disease (CVD) risk factors. The investigators will compare chronic consumption of a moderate fat blood cholesterol-lowering diet incorporating one avocado per day versus a blood cholesterol-lowering Lower-Fat diet on established CVD risk factors including lipids and lipoproteins, and blood pressure (BP). The investigators also will evaluate the effects of an avocado diet on several emerging CVD risk factors. To elucidate the specific benefits of avocado and its accompanying bioactives on the aforementioned risk factors, the investigators will compare the avocado diet with a diet that has the same macronutrient profile (but without the avocado).

The rationale for the potential role of antioxidants in the prevention of cardiovascular diseases (CVD) remains strong despite the disappointing results of recent trials with a few select antioxidant vitamins. Glutathione (GSH) is one of the body's most powerful antioxidant agents but there is a surprising paucity of data on its use as an interventional therapy. Glutathione, when taken orally, is immediately broken down into its constituent amino acids, of which cysteine is the only one to be essential. Available cysteine is the critical determinant of intracellular GSH concentrations. N-acetyl cysteine (NAC) is an antioxidant supplement that has been used to provide a source of cysteine to replete GSH levels. By replenishing endogenous glutathione, it is possible that NAC would exert the same effect(s) as exogenous GSH. However, there is a new delivery system, liposomal GSH, which keeps glutathione intact. In this study, the investigators propose to match the cysteine content of NAC and GSH and compare the effects of these two supplements, at two different doses, on markers of inflammation and oxidative stress.

The purpose of this study is to determine the effects of dietary protein on blood lipids and gut hormones after a fat-rich meal. Hypothesis: Certain dietary proteins reduce the amount of fat circulating in the blood stream following a fat rich meal. The effect is dependant of both the quality and the quantity of protein ingested.

Lipoprotein(a) [Lp(a)] is an independent risk factor for cardiovascular disease. Non-medical treatment measures (e.g. dietary therapy or weight loss) can hardly influence Lp(a) plasma concentrations. Drug therapy has only limited influence, e.g. treatment with niacin. Statins are usually without effect. Lipid apheresis is the only treatment known to lower elevated Lp(a) levels in a relevant way. In patients with pronounced elevation of Lp(a) and normal LDL cholesterol levels, who suffer from progressive cardiovascular disease, the treatment with lipid apheresis seems to be a last-resort treatment option. The current trial will evaluate the effectiveness of lipid apheresis on cardioavascular endpoints.

The purpose of this study is to determine the effects of dietary protein on blood lipids and gut hormones after a fat-rich meal. Hypothesis: Certain dietary proteins reduce the amount of fat circulating in the blood stream following a fat rich meal. The effect is dependant of both the quality and the quantity of protein ingested.

Enhanced and prolonged postprandial triglyceride responses involve increased cardiovascular risk in type 2 diabetes. It has been demonstrated that dietary fat and carbohydrates profoundly influence postprandial hypertriglyceridemia in type 2 diabetes, whereas little information exists about the effect of proteins. The purpose of this study is to compare the effects of the milk proteins casein, Whey Isolate, Whey Hydrolysate, and Alphalact-Albumin on postprandial lipid and incretin responses to a high-fat meal in type 2 diabetes.

This study will attempt to further validate a clinical treatment plan to lower LDL values using non-prescription supplements combined with a lifestyle change and education program which could represent an alternative approach to improve compliance in group of people who are unable to take traditional medication to lower cholesterol.