Cardiovascular disease is the most important cause of
death in the westernized countries and it is strongly
associated with hypercholesterolemia [17]. Decreasing
serum cholesterol is, therefore, very important to prevent
cardiovascular disease. HDL-cholesterol has been known to
prevent arteriosclerosis by removing cholesterol from blood
stream, whereas LDL-cholesterol fastens arteriosclerosis by
accumulating cholesterol in the blood vessel