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What are low density lipoproteins?

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Quick Answer

Low-density lipoproteins are made up of 80 to 100 proteins and are a form of cholesterol. They form a fifth of the group of major lipoproteins classified according to their density. The structure consists of a microscopic particle with an outer rim of protein and a cholesterol core.

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Full Answer

The primary function is to transport fats around the body, using the water outside the cells as a transport medium. Low density lipoproteins are "bad cholesterol," according to WebMd. They are harmful due to their tendency to deposit cholesterol on the walls of arteries, slowly leading to blockages and a risk of a heart attack. Accumulation can also lead to an occurrence of low-grade inflammation in the artery walls.

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