View clinical trials related to Lipoproteinemia.
Filter by:Lipoprotein apheresis is often applied as the final treatment of patient with severe and medication resistant dyslipidemia and progressive atherosclerosis. The high effectiveness of lipoprotein apheresis to improve the patient's metabolic situation and thereby strongly minimize the incidence of cardiovascular events was confirmed by a variety of studies. While in the past years, mostly patients with severe homo- or heterozygous familial hypercholesterolemia (FH) or otherwise highly elevated LDL-cholesterol were subjected to lipoprotein apheresis, currently the major indication for lipoprotein apheresis is a critical elevated plasma level of lipoprotein (a) [Lp(a)] in patients with severe cardiovascular events. Even if it is now widely accepted that Lp(a) is an independent risk factor for cardiovascular diseases due to its pro-atherogenic potential, the exact molecular mechanisms by which Lp(a) contributes to the atherosclerotic process remain unclear. Despite rigorous reduction of plasma Lp(a)-levels during lipoprotein apheresis newly occurring cardiovascular events cannot prevented in all patients. Specific pleiotropic effects of apheresis technologies are supposed to be critically involved in the clinical outcome. By measurement of a wide variety of cardio-metabolic biomarkers playing a role in inflammation, endothelial dysfunction, lipid metabolism or blood pressure regulation during repeated Lp(a) lowering by various apheresis methods may allow the identification of clusters of risk factors determining clinical outcome and give the biological basement for an optimized individual lipoprotein apheresis therapy.
The aim of study is to examine the relationship between lipid subfractions, inflammation and structural-functional properties of the arterial wall in patients after myocardial infarction with high lipoprotein (a) (Lp (a)) levels, to study genetic polymorphisms that determine lipid subfractions concentration on the functional and morphological properties of the arterial vascular wall in patients after myocardial infarction with high Lp (a) levels, to study the effect of pelacarsen on lipid subfractions, inflammation and structural-functional properties of arterial wall in patients after myocardial infarction with high Lp (a) levels and to study the influence of NOS-3 gene expression on the functional and morphological properties of the arterial vascular wall in the same patients. Impaired blood fat metabolism and chronic inflammation represent possible causes of atherosclerosis. Lp (a) is an independent risk factor for cardiovascular disease and a prognostic predictor in patients after myocardial infarction. Despite recommended screening for elevated Lp (a), there is no specific drug treatment approved to reduce cardiovascular risk through lowering Lp (a). Besides subtilisin-kexin convertase type 9 (PCSK9) inhibitors, antisense oligonucleotides (ASOs) are currently only therapeutic agents that significantly reduce serum Lp (a) concentration. Pelacarsen by using an ASO directed against the messenger ribonucleic acid (mRNA) of apolipoprotein (a), reduces the production of apolipoprotein (a) in the liver and thus, the level of Lp (a). However, there are no data on the relationship between Lp (a) values and polymorphisms for Lp (a), indicators of inflammation and impaired arterial function, and response to treatment with pelacarsen in patients after myocardial infarction with extremely high Lp (a) levels.
The aim of study is to examine the relationship between lipid subfractions, inflammation and structural-functional properties of the arterial wall in patients with premature coronary heart disease, to study genetic polymorphisms that determine lipid subfractions concentration on the functional and morphological properties of the arterial vascular wall in patients with early coronary heart disease, to study the effect of alirocumab and evolocumab on lipid subfractions, inflammation and structural-functional properties of arterial wall in patients with early coronary atherosclerosis and to study the influence of NOS-3 gene expression on the functional and morphological properties of the arterial vascular wall in the same patients. Impaired blood fat metabolism and chronic inflammation are intertwined as possible causes of atherosclerosis. Lipoprotein (a) (Lp (a)) is an important risk factor for coronary heart disease and a prognostic predictor in patients after myocardial infarction, but recent research suggests that subtilisin-kexin convertase type 9 (PCSK9) inhibitors are the only drugs that significantly reduce serum Lp (a) concentration. However, there are no data on the relationship between Lp (a) values and polymorphisms for Lp (a), indicators of inflammation and impaired arterial function, and response to treatment with various PCSK9 inhibitors in patients with early coronary heart disease.
The aim is to study the relationship between lipoprotein(a) [Lp(a)] and PCSK9 (Proprotein Convertase Subtilisin/Kexin type 9) in humans with a kinetic study of lipoproteins in patients with dramatic increase of Lp(a) and controls.