Cholesterol Raima Mian
What are LDL and HDL?
Cholesterol is carried in the blood attached to proteins called lipoproteins. The two main forms are LDL which has low density, and HDL which is high density. LDL is responsible for transporting cholesterol to the cells, it is important but too much can be unhealthy. HDL is responsible for removing excess cholesterol from the bloodstream and transporting it to the liver.
How do LDL and HDL differ structurally and functionally?
The main structural difference between LDL and HDL is their compositions. Approximately 50 percent of the weight of an LDL particle is cholesterol and only 25 percent is protein. High-density lipoprotein particles, on the other hand, consist of 20 percent cholesterol by weight and 50 percent protein.
Why do doctors monitor the concentrations of LDL and HDL in patient's blood?
During a blood test, LDL and HDL are both monitored along with other things because they are used to help evaluate the patient's risk of heart disease. Patients levels in the blood help doctors to evaluate a person's health status and to determine whether and person is at risk for cardiovascular disease. Doctors will look at lipid profile numbers to determine overall risk for heart disease.
How are the concentrations of LDL and HDL associated with the risk for heart disease and associated disorders?
High levels of LDL cholesterol lead to atherosclerosis increasing the risk of heart attack and ischemic stroke. HDL cholesterol reduces the risk of cardiovascular disease as it carries cholesterol away from the blood stream.
What other molecules in a patient's blood are monitored along with LDL and HDL?
Along with LDL and HDL, doctors often include another type of fat called triglycerides. The combination of high levels of triglycerides. The combination of high levels of triglycerides with low HDL cholesterol or high LDL cholesterol can increase your risk for heart attack and stroke. Some other molecules are low density lipoproteins, high density lipoproteins, and cholesterol molecules.
What do the results of a cholesterol test mean? How do patients interpret each value?
Test report will show cholesterol levels in milligrams per deciliter of blood. Total cholesterol and HDL are used by doctors to predict a person's lifetime or 10 year risk for a heart attack or stroke.
A patient should be aware of five key numbers: total cholesterol, HDL cholesterol, blood pressure, blood sugar, and body mass index.
Blood cholesterol: the higher a patient's total blood cholesterol level is, the greater risk they have for coronary heart disease.
How does intake of saturated, unsaturated, and trans fats affect cholesterol levels overall health?
LDL cholesterol is affected by diet. Knowing what fats raise LDL cholesterol and what ones don't is important for lowering your risk of heart disease and stroke. Eating saturated. unsaturated, and trans fat raises your blood cholesterol even more.