low-density lipoprotein

lipoprotein /lipo·pro·tein/ (-prō´tēn) a complex of lipids and apolipoproteins, the form in which lipids are transported in the blood.

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α-lipoprotein , alpha lipoprotein one with electrophoretic mobility equivalent to that of the α1-globulins, e.g., high-density lipoprotein.

β-lipoprotein , beta lipoprotein one with electrophoretic mobility equivalent to that of the β-globulins, e.g., low-density lipoprotein.

floating beta lipoproteins  β.

high-density lipoprotein  (HDL) a class of plasma lipoproteins that promote transport of cholesterol from extrahepatic tissue to the liver for excretion in the bile; serum levels have been negatively correlated with premature coronary heart disease.

intermediate-density lipoprotein  (IDL) a class of lipoproteins formed in the degradation of very-low-density lipoproteins; some are cleared rapidly into the liver and some are degraded to low-density lipoproteins.

low-density lipoprotein  (LDL) a class of plasma lipoproteins that transport cholesterol to extrahepatic tissues; high serum levels have been correlated with premature coronary heart disease.

Lp(a) lipoprotein  a lipoprotein particle containing apolipoprotein B-100 as well as an antigenically unique apolipoprotein; its occurrence at high levels in plasma has been correlated with increased risk of heart disease.

pre-β-lipoprotein , pre-beta lipoprotein very-low-density lipoprotein

sinking pre-β-lipoprotein  Lp(a) l.

very-high-density lipoprotein  (VHDL) a class of lipoproteins composed predominantly of proteins and also containing a high concentration of free fatty acids.

very-low-density lipoprotein  (VLDL) a class of lipoproteins that transport triglycerides from the intestine and liver to adipose and muscle tissues; they contain primarily triglycerides with some cholesteryl esters.

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low-density lipoprotein

n. Abbr. LDL

A lipoprotein that contains relatively high amounts of cholesterol and is associated with an increased risk of atherosclerosis and coronary artery disease. Also called LDL cholesterol, beta-lipoprotein.

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Low-density lipoprotein (LDL)

A type of lipoprotein that consists of about 50% cholesterol and is associated with an increased risk of coronary artery disease.

Mentioned in: Cholesterol Test

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low-density lipoprotein (LDL),

a plasma protein provided from very low-density lipoproteins (VLDLs) or by the liver, containing relatively more cholesterol and triglycerides than protein. It is derived in part, if not completely, from the intravascular breakdown of the very low-density lipoproteins and delivers lipids and cholesterol to the body tissues. The high cholesterol content may account for its greater atherogenic potential as compared with the VLDLs.

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low-density lipoprotein

See LDL.