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LDL-C represents how much cholesterol is being transported by all LDL particles, which is either a smaller concentration of large particles or a high concentration of small particles. LDL-C itself can be estimated by subtraction (Friedewald's method) [61] or directly measured; see the section #Testing above to see how it's measured. [62]
LDL circulates and is absorbed by the liver and peripheral cells. Binding of LDL to its target tissue occurs through an interaction between the LDL receptor and apolipoprotein B-100 on the LDL particle. Absorption occurs through endocytosis, and the internalized LDL particles are hydrolyzed within lysosomes, releasing lipids, chiefly cholesterol.
A lipid profile or lipid panel is a panel of blood tests used to find abnormalities in blood lipid ( such as cholesterol and triglycerides) concentrations. [not verified in body] The results of this test can identify certain genetic diseases and can determine approximate risks for cardiovascular disease, certain forms of pancreatitis, and other diseases.
High LDL cholesterol is the most common type of dyslipidemia; it’s also known as hyperlipidemia or simply high cholesterol. Hyperlipidemia happens when you have high levels of one or more lipids ...
Familial hypercholesterolemia (FH) is a genetic disorder characterized by high cholesterol levels, specifically very high levels of low-density lipoprotein cholesterol (LDL cholesterol), in the blood and early cardiovascular diseases.
Remnant cholesterol is composed primarily of VLDL, IDL and chylomicron remnants. Remnant cholesterol, also known as remnant lipoprotein and triglyceride-rich lipoprotein cholesterol is an atherogenic lipoprotein composed primarily of very low-density lipoprotein (VLDL) and intermediate-density lipoprotein (IDL) with chylomicron remnants.
For this reason, total LDL is referred to as "bad cholesterol," although only a fraction of it is actually bad. Standard chemistry panels typically include total triglyceride, LDL and HDL levels in the blood. Measuring the concentration of sd-LDL is expensive.
"Some people even see LDL cholesterol and ApoB decrease, and many don't see any change," he says in the video. There are many risk factors for heart disease beyond cholesterol, Norwitz noted.These ...