Protein that blocks body's ability to clear bad cholesterol identified

Researchers have uncovered a long-sought link in the battle to control cholesterol and heart disease. The protein that interferes with low-density lipoprotein (LDL) receptors that clear 'bad' cholesterol from the blood was identified. Excess LDL cholesterol can lead to atherosclerosis -- a narrowing and hardening of arteries -- and ultimately, heart attack.