Why are low-density lipoproteins atherogenic?

AUTOR(ES)

Young, S G

RESUMO

Low-density lipoproteins (LDLs) carry most of the cholesterol in human plasma, and high levels of LDL cholesterol clearly cause heart disease. In recent years, many scientists have focused on elucidating the pathophysiologic steps that lie between elevated levels of LDL in the plasma and atherosclerotic plaques in the arterial wall. A large number of scientific studies indicate that oxidation of LDL within the arterial wall may be an important early step in atherogenesis. The uptake of oxidized LDL by macrophages is a likely explanation for the formation of macrophage foam cells in early atherosclerotic lesions. In addition, oxidized LDL has many other potentially proatherogenic properties.

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