There are several fractions or forms of cholesterol in the blood and in the tissues. The cholesterol-LDL corresponds to the bulk of the total cholesterol in the blood. Although product in the body, it is modified by external factors, such as diet, physical activity or tobacco. The cholesterol-LDL is also known as “bad cholesterol” because its increase is related to an increase of cardiovascular risk.
What is the cholesterol-LDL?
Bad cholesterol The cholesterol-LDL is a lipoprotein, that is to say, a substance formed of lipids and proteins called low density. This fraction corresponds to the bulk of the total cholesterol carried in the blood. When it is not used or it is found in excess, the cholesterol-LDL is deposited in the walls of vessels to form of atherosclerotic plaque, thus constituting a cardiovascular risk factor. Dosage of cholesterol-LDL in the blood, that is the fraction of the cholesterol contained in lipoproteins LDL type This corresponds to the essential of cholesterol transported in the blood. The formula of Friedewald allows you to calculate the value of the cholesterol -LDL from the total cholesterol, the cholesterol-HDL and triglycerides. The dosage of the cholesterol-LDL and its relationship with the fraction LDL and triglycerides is a useful element to assess the risk atheromateux.