High-density lipoprotein - Definition

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High density lipoprotein (HDL) constitutes a family of lipoproteins which ensure the transport of cholesterol to the liver. It is this organ that is responsible for eliminating it in order to balance out an excessive accumulation of cholesterol on the blood vessel walls. Excessive cholesterol levels can lead to atherosclerosis, which signifies a blockage in the blood circulation. In layman's terms, high-density lipoproteins are known as "good cholesterol", as opposed to low-density lipoproteins.