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    Statins May Reverse Plaque Buildup

    Study Shows Crestor Opens Up Fat-Clogged Arteries
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    March 13, 2006 (Atlanta) -- For the first time, a popular cholesterol-lowering statin drug has been shown to actually clear plaque out of fat-clogged heart arteries.

    "Ridding the heart arteries of plaque was previously thought to be unattainable," says researcher Steven Nissen, MD. Nissen is interim chairman of the department of cardiovascular medicine at The Cleveland Clinic.

    "But what we found is that if you lower LDL cholesterol to very low levels and keep it there for two years, you can remove plaque in fairly significant quantities and partially reverse coronary artery disease," he tells WebMD.

    Groundbreaking Work

    "This is very exciting research that breaks new ground," says David O. Williams, MD, a cardiologist at Brown University in Providence, R.I., who moderated a news conference to discuss the study.

    The findings, which were released at the annual meeting of the American College of Cardiology, were simultaneously published online in The Journal of the American Medical Association.

    Atherosclerosis, the buildup of fatty plaque, calcium, and other deposits in arteries, is the most common cause of heart disease and death in the U.S.

    The new study builds on previous work by Nissen and colleagues that showed that the statin drug Lipitor can slow the progression of atherosclerosis "basically to zero."

    In the current study "we wanted to push the paradigm as far as it would go," he says.

    The study included about 350 people who took high doses of another statin, called Crestor, for two years. All the participants had at least one fatty blockage clogging a major heart artery.

    Raising HDL 'Good' Cholesterol

    Nissen says the previous studies suggest that Crestor may be more potent than other statins, "with a greater capacity to lower LDL and perhaps to raise HDL." LDL is "bad" cholesterol and HDL is "good" cholesterol.

    By snaking a small ultrasound probe into the coronary arteries, the researchers showed that Crestor reduced the volume of plaque in the arteries by 6.8%.

    Average LDL cholesterol levels dropped from 130.4 mg/dL at the start of the study to 60.8 mg/dL, "which is the lowest level ever achieved in a statin trial," Nissen says.

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