Active clinical trials for "Hypercholesterolemia"

Few studies have explored how specific formats of effectiveness information effect on real patients' decisions. We only know little about what kind of format would be the optimal to help patients make well-informed real-life decisions corresponding to their preferences. The trial is developed in a clinical randomised design to study risk communication in the shared decision making between general practitioners (GP) and their patients in primary prevention with of cholesterol lowering drug. Endpoints are effect of GPs' information about treatment effectiveness and their patients' values on patients' tendency to accept and adhere to the treatment as well as their feeling of content with the choice made. GPs are randomised to inform about risk and treatment effectiveness by means of either absolute risk reduction (ARR) or Prolongation of Life (POL). Afterwards patients are invited to answer questionnaires concerning their content with decisions and reflections. Patients' redemption of prescriptions during the following week and the first year are recorded through an electronic database. 57 GPs and 248 patients have been enrolled in the trial.

The purpose of this study was to evaluate whether an intensified multifactorial intervention program about cardiovascular risk factors in subjects with peripheral arterial disease (with and without diabetes mellitus), can improve the control of these factors (mainly hypercholesterolemia and hypertension) in relation to the habitual care

Regular consumption of a beverage containing β-cryptoxanthin (β-Cx) and plant sterols (PS) has been shown to exert a synergic effect in reducing some markers of cardiovascular risk and bone-remodeling (formation and resorption). The present project aims to: Evaluate (by in vivo and in vitro studies) the bioavailability of added β-Cx, PS and galactooligosaccharides (GOS) and its stability in the beverage employed in the proposed study. Study the biological effect (bioefficacy) associated with the regular consumption of modified milk-based fruit beverages containing β-Cx, PS and GOS in post-menopausal women (target group) by assessing changes in inflammation, cardiovascular and bone turnover biochemical markers. Characterize genetic variability (polymorphisms), genetic expression and DNA oxidative damage in the target group as determinants of bioavailability and biological effects of β-Cx, PS and GOS. Evaluate the potential prebiotic effect associated to regular consumption of a beverage supplemented with β-Cx, PS and GOS: including "in vitro" studies and characterization of subjects' microbiota and possible microbiota changes associated to the beverage consumption.

Atherosclerosis is the leading cause of death and disability in adults. However, investigations suggest that the basic pathology of heart disease as more severe myocardial infarction which usually reach mainly middle-aged or above, starts from childhood. Hypercholesterolemia is one of the most important risk factors for atherosclerosis in adults and children, is associated with early deposition of lipids in the aorta and coronary arteries. Among other recommendations for prevention and treatment of heart disease and risk factors, is the recommendation to encourage the intake of soluble fiber. The oats, a major source of soluble fiber, has been recognized as a potential component of the diet to lower blood cholesterol levels, this effect is attributed mainly to the beta-glucan, a type of soluble fiber present in large quantities in oats. In 1997 the Food and Drug Administration admitted that the oat bran, oat flakes and oatmeal may have beneficial effects for health with the recommendation of daily intake of 3g of beta-glucan from oats and a food that brings a claim for promotion health, must provide, without enrichment, at least 1 gram of beta-glucan per serving. The objective of this project will be compared by randomized clinical trial, the impact of intake of oats, for 8 weeks in the lipid profile of children and adolescents with dyslipidemia. Will be included in the study 120 volunteers aged between 5 and 16 years who are in nutritional monitoring for at least 1 month. The subjects will be randomly divided into 2 groups, with a control group and another intervention will receive 3 tablespoons of soup filled with oat bran, which corresponds to 3g of beta-glucan, along with breakfast, lunch and dinner. Patients will be monitored with consultations on the 2nd, 4th and 8th weeks of treatment. Blood sample will be performed, to obtain the lipid profile of patients, at the beginning and end of the study. To compare the groups are used Student's t and squared chi. The alpha of 0.05 is considered critical. The program will be used Statistical Package for the Social Sciences (SPSS) version 15.0. It is expected a decrease in serum levels of total cholesterol and LDL-c. Thus, living habits and healthy alternatives to prevent these risk factors should be done since childhood, especially in children who already have cholesterol levels of change.

Cholesterol is the precursor of glucocorticoids, mineralocorticoids and sex steroids. Both adrenal and non-adrenal (ovarian + testicular) all steroid hormones are primarily synthesized using the LDL-cholesterol in the circulation. Additionally there is 'de novo' cholesterol synthesis in both the adrenals and gonads controlled by the HMG-CoA reductase enzyme. A third pathway is the use of circulatory HDL-cholesterol by the adrenal and gonadal tissues for the synthesis of steroids. Since statins both decrease circulatory LDL and inhibit de novo cholesterol synthesis, they are likely to affect the synthesis of steroid hormones. In this study we aim to investigate the effects of lowering LDL levels below 70 mg/dL on steroid hormone synthesis.

The purpose of this study is to evaluate the effectiveness of a food-source nutrient containing bitter orange by comparing changes 45 blood chemistries and self-reported quality of life.

The overall goal of this clinical study is to investigate how dietary cholesterol intake influences the plasma Total cholesterol (TC), LDL-Cholesterol levels and cholesterol metabolism between adults who had been breast-fed as infants as a function of the duration of breast feeding and quantity of early cholesterol intake. The study also aims to evaluate the effect of a plant sterol formulation in low fat milk shake in modulating the lipid profile favorably in the study population.

Simvastatin has been reported to promote osteoblastic activity and inhibit osteoclastic activity by enhancing the expression of BMP2. There have been many studies demonstrating the bone-promoting effect of local application various animal models including after application into socket of teeth in a rat. the purpose of the study is to investigate the effect of slow release topical simvastatin in socket of mandibular teeth on bone remodeling in the socket

Study Title: Evaluation of chylomicrons metabolism in sub-clinical atherosclerosis in patients whit Heterozigous Familial Hypercholesterolemia (FH) treated with statin plus ezetimibe. Background: Coronary artery calcification (CAC) is a marker of sub-clinical coronary atherosclerosis which correlates with higher risk of clinical events. It was already demonstrated that CAC is more prevalent in patients with FH compared with normal individuals. A number of studies demonstrated that plasmatic removal of chylomicrons is defective in patients with atherosclerosis. Despite the fact that is still controversial whether this impairment occurs in patients with HF when compared to normal controls, the kinetics of chylomicrons has not been studied in HF patients with and without atherosclerosis and more important, it is not clear if those changes may be observed in the sub-clinical disease, as reported for CAC in asymptomatic individuals. Previous studies have demonstrated the inverse correlation among LDL-C levels and the removal of remnants chylomicrons using artificial chylomicrons technique. It is also well known that high doses of more potent statins are more effective to remove chylomicrons from the plasma due to better expression of LDL-C receptors through plasma LDL-C reduction. It was not evaluated yet if the association of ezetimibe and statin, enhancing LDL-C receptors expression in the liver would enhance the efficacy of the monotherapy with statins to remove artificial chylomicrons in patients with HF. Study design: Open, randomized, single-blinded study in which twenty six outpatients from the Lipids Clinical Unit at the Heart Institute (INCOR), University of São Paulo, previously diagnosed with FH according to US MED PED criteria, without history of CD and a CAC evaluation by MSCT (Multiple Sensors Computed Tomography) in the previous year will be compared to 26 control individuals matched by age and sex collected from the database of the Lipids Metabolism Laboratory. Patients will be randomized to receive simvastatin 40 mg as monotherapy or in combination with ezetimibe 10 mg and will undergoing three kinetics studies to demonstrate the effects of simvastatin 40 mg on the kinetics of the chylomicrons along with other laboratorial dosages ( lipid fractions, hepatic enzymes and CK). The primary endpoint of this study is to evaluate if there is any correlation among the reduction of the plasma clearance of chylomicrons by the artificial chylomicrons technique and the presence of sub-clinical atherosclerosis; the secondary endpoint is to evaluate if ezetimibe/simvastatin enhances the effects of simvastatin alone in the removal of chylomicrons in patients with HF.

Development of a new MS-based biomarker for the early and sensitive diagnosis of Homozygous familial Hypercholesterolemia from blood