Vascular and Metabolic Effects of Hormone Therapy Combined With L-Arginine in Postmenopausal Women...
HypercholesterolemiaPostmenopauseEstrogen therapy has been associated with reduced risk of coronary heart disease events in observational studies of postmenopausal women. Although favorable effects of estrogen on lipoprotein cholesterol levels probably account for much of this benefit, direct vascular effects (vasomotor, hemostatic, anti-inflammatory) regulated by nitric oxide (NO) may also be of importance. We have recently shown that vasodilator effects of estrogen in the coronary circulation are due to enhanced bioactivity of NO released from the endothelium. Estrogen has been shown to stimulate synthesis and activity of the enzyme NO synthase with enhanced NO synthesis in endothelial cells in culture. Because L-arginine is the natural substrate for the enzyme NO synthase, we propose that the combination of L-arginine and estrogen might have additive vasomotor, hemostatic and anti-inflammatory effects in hypercholesterolemic postmenopausal women.
Switching From Zidovudine to an NNRTI or Lopinavir/Ritonavir in Patients Treated With Zidovudine/...
HIV Associated Lipodystrophy Syndrome.HIV2 moreHighly active antiretroviral therapy (HAART) has improved the long time survival of HIV infected individuals. However an increasing number of HIV-patients have developed metabolic and morphological alterations including peripheral lipoatrophy. The main hypothesis of the study is that switching from thymidine-analogue based HAART will reverse lipoatrophy. We plan to perform an observational study recruiting up to 100 HIV-infected patients receiving Trizivir (zidovudine/lamivudine/abacavir). The patients will be offered an NRTI or lopinavir/ritonavir instead of zidovudine or they can choose to continue with Trizivir. The main endpoint is changes in peripheral fat mass as determined by DEXA-scanning.
The Effect of Fasudil on Vascular Function in Humans
AtherosclerosisHypercholesterolemiaThe purpose of the study is to evaluate how the rho kinase inhibitor, fasudil, affects vascular function in patients with atherosclerosis and hyperlipidemia.
Potential Risk Factors for Stroke
Carotid AtherosclerosisCerebrovascular Accident3 moreEarly studies have shown that the immune system may play a role in the development of strokes. Conditions such as high blood pressure, high cholesterol, diabetes, and old age can activate the immune system and increase the risk of developing hardening of the arteries (atherosclerosis) and damaged blood vessels. Researchers will attempt to characterize factors that may contribute to atherosclerosis and stroke by measuring certain components of the immune system, cytokines and leukocyte activation. Measurements will be taken from patients that are considered to be stroke prone and from patients without risk factors for the development of stroke. Researchers will measure the immune system components at the beginning of the study, at six months, and at the one-year completion of the study. The study will attempt to determine; I) If patients with risk factors for stroke have an increased activation of the immune system II) If patients with risk factors for stroke that are symptomatic have higher levels of immune system activation compared to patients who do not have symptoms III) If patients with increased activation of the immune system have accelerated hardening of the arteries (atherosclerosis)
Study of Evinacumab (REGN1500) in Participants With Persistent Hypercholesterolemia
HypercholesterolemiaThe primary objective of the study is to evaluate the reduction of LDL-C by evinacumab in comparison to placebo after 16 weeks in patients with primary hypercholesterolemia (HeFH, or non-HeFH with a history of clinical ASCVD) with persistent hypercholesterolemia despite receiving maximally-tolerated LMT. Persistent hypercholesterolemia is defined as LDL-C ≥70 mg/dL (1.81 mmol/L) for those patients with clinical ASCVD and LDL-C ≥100 mg/dL (2.59 mmol/L) for those patients without clinical ASCVD.
Study to Assess In-home Use of Evolocumab (AMG 145) Using a Prefilled Syringe or a Prefilled Autoinjector/Pen...
Primary HypercholesterolemiaMixed DyslipidemiaThe primary objective of this study was to assess users' ability to administer a full dose of evolocumab in home-use using either a pre-filled syringe or autoinjector/pen.
Vascular and Metabolic Effects of Rosuvastatin
HypercholesterolemiaThe investigators hypothesize that rosuvastatin does-dependently worsens insulin sensitivity.
Study of Alirocumab (REGN727/SAR236553) added-on to Rosuvastatin Versus Other Lipid Modifying Treatments...
HypercholesterolemiaTo evaluate the reduction of low-density lipoprotein cholesterol (LDL-C) by alirocumab (REGN727/SAR236553) as an add-on therapy to other LMT in patients with hypercholesterolemia at high cardiovascular (CV) risk.
The Effect of Plant Sterol Supplement on Blood Cholesterol
High Blood Cholesterol LevelThe purpose of this study is to determine whether supplement of plant sterol could lower blood cholesterol.
12-week Open-label, Phase IIIb Comparing Efficacy and Safety of Rosuvastatin (CRESTOR™) in Combination...
HypercholesterolemiaCoronary Heart Disease1 moreThe purpose of this study is to determine whether treatment of Rosuvastatin (CRESTOR™) or Simvastatin given as monotherapy or given in combination with Ezetimibe, will lower the Low Density Lipoprotein Cholesterol (LDL-C) in patients with Hypercholesterolaemia and Coronary Heart Disease (CHD) or a CHD Risk Equivalent, Atherosclerosis or a 10-year CHD Risk of >20%