Correlation of Flicker Induced and Flow Mediated Vasodilatation in Patients With Endothelial Dysfunction...
Diabetes MellitusType 13 moreA couple of studies have shown that illuminating the eye with diffuse flickering light is accompanied by an increase of retinal vessel diameters, optic nerve head blood flow and retinal blood flow. We have recently used this visual stimulation technique as a new and powerful tool for the non-invasive investigation of vascular reactivity. Additionally, we could show that this response is diminished in patients with vascular pathologies and that the response is dependent on nitric oxide, indicating that flicker induced vasodilatation may reflect endothelial dysfunction and may be a new approach to test endothelial function in vivo. One of the most widely used method for the assessment of endothelial function is flow mediated dilatation (FMD). FMD has been shown to give a reliable estimate of vascular function in vivo. In the present study, we set out to compare the standard method for the evaluation of endothelial function, FMD, to flicker induced vasodilatation in the retina.
Coronary and Heart Effects of Early Treatment in Familial Hypercholesterolemia
Familial HypercholesterolemiaThis study evaluates plaque burden and characteristics in early-treated FH patients compared to late-treated FH patients and healthy individuals.
Supplementation of Alpha-linolenic Acid (ALA)-Rich Oil in Humans
OverweightHypercholesterolemiaThe objective of this study is to investigate the accumulation of n-3 LC-PUFA (EPA, DPA and DHA) in human lipids by oral supplementation of ALA-rich linseed oil. In addition, the accumulation of n-3 LC-PUFA is compared between subpopulations of different age, gender and physiological conditions (overweight, increased serum total cholesterol).
Efavirenz to Nevirapine Switch and Low-Density Lipoprotein (LDL)-Dyslipidemia
HIV InfectionsHypercholesterolemia1 moreDyslipidemia and coronary heart disease (CHD) are increasingly recognized in persons with human immunodeficiency virus (HIV) infection. Many antiretrovirals, including efavirenz (EFV), are associated with increases in serum lipids. The investigators investigated whether stopping EFV and replace EFV by nevirapine can reduce significantly Low-Density Lipoprotein cholesterol, while keeping virologic control of HIV.
Effects of α-linolenic Acid Supplementation on Hemostasis in Nondiabetic and Hypercholesterolemic...
HypercholesterolemiaThis study evaluates whether ALA intake alters total cholesterol and homeostatic factors and the relationship between these alteration and lipoprotein associated phospholipase A2 (Lp-PLA2) activity.
Tolerability and Lipid Lowering Effect of Weekly/Biweekly Crestor in Statin Intolerant Patients...
HypercholesterolemiaRecently, research studies have shown that patients who have had trouble taking statins every day, are able to take statins if they take them only once or twice a week. The investigators are doing a research study which involves switching people who are taking ezetimibe to the statin Crestor once or twice a week and to see how ell Crestor lowers cholesterol and if it is tolerated.
A Clinical Trial for Evaluation of Adequate Dose and Safety of DW-3102 in Hypercholesterolemia Patients...
HypercholesterolemiaThe purpose of this study is to evaluate adequate-dose of DW-3102 in the treatment of hypercholesterolemia patients by conducting phase 2a. 4 groups involving placebo group, each groups are composed by 16, will be participated in this trial.
A 6-Month Consumer Behavior Study of a Self-Management System (0803-084)(COMPLETED)
HypercholesterolemiaThe purpose of this study is to evaluate the ability of patients with intermediate risk of heart disease to appropriately use a Self-Management System.
The Inhibition of Platelet Antiaggregating Activity of Clopidogrel by Atorvastatin Detected by Erythromycin...
HypercholesterolemiaThrombosisThe objective of this study is to determine if the action of the drug called clopidogrel, that you will start taking, will be decreased by another drug called atorvastatin, that you will also start taking. Clopidogrel is an oral antiplatelet agent that has been shown to prevent strokes and heart attacks. Atorvastatin is a cholesterol lowering agent. Twenty adults 18-75 years of age requiring cholesterol-lowering agent and antiplatelet agent therapy will be recruited for this study during their cardiology clinic visitation. In one group, antiplatelet agent (clopidogrel) regimen will be administered first, then followed by cholesterol-lowering medication (atorvastatin). In the second group, atorvastatin will be administered first, followed by clopidogrel. A new test called the erythromycin breath test will be administered to you three times during the study to measure how your liver will metabolize these drugs. Blood samples will also be obtained to assess platelet function. The criteria for exclusion are patient refusal or inability to give written consent, patients with allergic reaction to erythromycin, patients with known bleeding problems, liver disease, significant lung disease kidney disease and pregnancy. Patients with psychiatric impairment and documented history of substance abuse will also be excluded from the study.
Effect of Phytosterols Enriched Products Consumption on Carotid Artery Artherosclerotic Plaque
HypercholesterolemiaThe objective of this exploratory study is to analyse in humans any qualitative changes of carotid artery atherosclerotic plaque under the influence of plant sterols consumption.