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Multiple Choice

LDL cholesterol is associated with what risk in arteries?

LDL cholesterol contributes to atherosclerosis by delivering cholesterol to the arterial wall, where it becomes oxidized and taken up by macrophages to form foam cells. This builds up fatty streaks and eventually leads to atheromatous plaques that narrow and stiffen arteries, raising the risk of heart attack and stroke. So the association is with promoting plaque formation. The option describing inhibition of plaque formation doesn’t fit, and LDL is not primarily known for reducing arterial stiffness or increasing HDL production (HDL, the “good” cholesterol, helps remove cholesterol rather than LDL increasing its production).

LDL cholesterol contributes to atherosclerosis by delivering cholesterol to the arterial wall, where it becomes oxidized and taken up by macrophages to form foam cells. This builds up fatty streaks and eventually leads to atheromatous plaques that narrow and stiffen arteries, raising the risk of heart attack and stroke. So the association is with promoting plaque formation.

The option describing inhibition of plaque formation doesn’t fit, and LDL is not primarily known for reducing arterial stiffness or increasing HDL production (HDL, the “good” cholesterol, helps remove cholesterol rather than LDL increasing its production).