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Cholesterol Definitions

See a word that you don't recognize? This glossary of terms related to cholesterol will help you to understand everything related to cholesterol - including some of the new and obscure things that even researchers are sometimes grasping to understand.

Small, Dense LDL

Small dense LDL particles can help to promote the formation of atherosclerosis, leading to heart disease.

Remnant Lipoproteins

Remnant lipoproteins are LDL-like particles that could contribute to the development of atherosclerosis.

Sitosterolemia

Sitosterolemia is a rare, inherited condition in which phytosterols cannot be broken down properly in the body.

Absorption

Absorption is the movement of nutrients and other substances, such as cholesterol, from the gastrointestinal tract to the bloodstream.

Acute Coronary Syndrome

Acute coronary syndrome is actually a group of syndromes that results from the sudden rupture of atherosclerotic plaque.

Angina

The definition of angina and how it relates to high cholesterol and heart disease.

Angiography

The definition of angiography and what it is used for.

Angioplasty

The definition of angioplasty and how it relates to heart disease and high cholesterol.

Antioxidants

Antioxidants are chemicals that can protect against damage caused by free radicals.

Apolipoprotein A1

Apolipoprotein a1 major protein that makes up high-density liporprotein, or HDL cholesterol. Having high levels of apo A1 could help in heart disease prevention.

Apolipoprotein B

Apo B is a major protein that makes up low-density liporprotein, or LDL cholesterol. Apo B helps transport cholesterol and triglycerides to cells in the body.

Apolipoprotein C-III (apo C-III)

Apolipoprotein C-III is a protein found in VLDL cholesterol particles.

Apolipoprotein E

Are you looking for the definition of apolipoprotein e? What is apo E? Apolipoprotein E is a protein that is found in triglycerides, chylomicrons, and HDL. High levels of Apo E can be correlated to high triglyceride levels. There may be apolipoprotein e testing for cardiovascular disease.

Apolipoprotein

Apolipoproteins perform a variety of important functions in cholesterol transport. Find out what they are and how they affect you.

Arteriosclerosis

Arteriosclerosis is a general term that refers to the loss of elasticity and thickening of arteries.

Atherogenic

Atherogenic pertains to the ability to promote the development of atherosclerosis.

Atheroma

An atheroma, also referred to as a plaque, develops due to a process called atherosclerosis.

Atheroslerosis

Atherosclerosis is a disease of the arterial blood vessels (arteries), in which the walls of the blood vessels become thickened and hardened by "plaques."

Bile Acid Sequestrants

The definition of bile acid sequestrants, and how they work in the body to lower cholesterol.

Bile Acids

Bile acids are made in the liver and are responsible for emulsifying fats.

C-Reactive Protein (CRP)

C-reactive protein is used to predict heart disease risk and can be elevated in some chronic conditions and during inflammation. A C-reactive protein test can catch people at high risk of heart disease even when cholesterol levels are normal.

Cardiac Catheterization

Cardiac catheterization is a medical procedure that examines the arteries of the heart.

Carotid Artery Disease

Carotid artery disease is a condition where cholesterol and other lipids build up on the carotid arteries, limiting blood flow to the brain.

Carotid Artery

The carotid artery is an important artery in the body that supplies blood to the brain.

Carotid Endarterectomy

Carotid endarterectomy is a surgical procedure that removes plaque from the carotid arteries.

Carotid Intima Media Thickness

Carotid artery intima media thickness, or CIMT, is a measurement of atherosclerotic plaque formation in the carotid artieries. It is performed by using doppler ultrasound on the carotid artery.

Cerebrovascular Disease

Definition of cerebrovascular disease and how it relates to high cholesterol levels.

CHD Risk Equivalent

A CHD risk equivalent is a condition that may not have many symptoms, but could place you at the risk of have a coronary event equivalent to someone who has already had one.

Cholesterol Embolism

A cholesterol embolism refers to particles of cholesterol that break of an atherosclerotic plaque and travel to other areas of the body.

Cholesterol Ratio

Cholesterol ratio can be measured as total cholesterol to HDL cholesterol ratio or ratio between LDL to HDL cholesterol.

Cholesterol

Cholesterol - you need it for your body, but too much of it can be detrimental to your heart. Here, you will find the definition of cholesterol.

Chylomicrons

What is the definition of a chylomicron? Chylomicrons are liporproteins that transport triglycerdies and cholesterol from the small intestine to other tissues for chylomicron metabolism.

Coronary Arteries

Every muscle needs a blood supply, including the heart. Its blood supply comes from the coronary arteries.

Coronary Heart Disease

Coronary heart disease is caused by atherosclerosis of the coronary arteries. Plaques in the coronary arteries can obstruct blood flow to the heart muscle which can produce angina (chest pain). If a coronary artery plaque ruptures, a heart attack can occur.

Dyslipidemia

Dyslipidemia is a condition that involves your cholesterol and triglyceride levels. This definition will give you more details.

Endogenous Cholesterol

Endogenous cholesterol is cholesterol that is made of inside the body. Endogenous cholesterol is made by the liver in the body, which is used for many biological processes, such as lining nerves, serving as a precursor for other hormones and providing cellular structure.

Endothelium

The definition of endothelium and its location in the body.

Essential Fatty Acid

Essential fatty acids are fats that cannot be made by the body and must be obtained through diet. Essential fatty acids lower cholesterol levels.

Exogenous Cholesterol

Exogenous cholesterol, obtained from outside of the body, is usually obtained through diet – especially in diets high in saturated fat and cholesterol.

Familial Hypercholesterolemia

Familial hypercholesterolemia is a genetic condition characterized by high LDL cholesterol. It has been linked as one of the causes of high ldl and the causes of heart disease at a very early age. This definition of hypercholesterolemia explains whether or not high cholesterol is genetic and the link between high cholesterol and heart disease.

Fibrates

The definition of fibric acid derivatives, or fibrates, and how they work in the body.

Flavonoids

Flavonoids are chemicals found in certain foods that may help lower the incidence of LDL oxidation and atherosclerosis.

Foam Cell

Foam cells are involved in plaque formation and the development of atherosclerosis. These factors contribute to heart disease.

Free Radicals

Free radicals are molecules that are highly reactive and can produce damage to cells and tissues in the body. These, along with LDL, can contribute to a process called "atherosclerosis."

High Density Lipoproteins

The definition of HDL, otherwise known as the "good" cholesterol.

Homocysteine

The definition of homocysteine, its purpose, and function in the body.

Hypercholesterolemia

What is hypercholesterolemia? This definition will tell you what hypercholesterolemia is and how it affects you.

Hyperlipidemia

Hyperlipidemia is a condition where there is an elevation of lipids, or fats, in the blood. This could be due to an increase in triglycerides, cholesterol, or both.

Hypertriglyceridemia

Hypertriglyceridemia is a condition that is characterized by high levels of triglycerides.

Hypocholesterolemia

Hypocholesterolemia is a condition where cholesterol levels are extrememly low.

Inflammation

Inflammation is a redness and swelling at the site of an infection or injury. It can also contribute to causing atherosclerosis.

Insoluble Fiber

Insoluble fiber is a source of fiber that that is contained in many fruits, vegetables, and nuts. While it does not help to lower cholesterol, it is important for your health.

Intermediate Density Lipoprotein

Intermediate density lipoproteins, or IDLs, transport cholesterol and triglycerides through the body. IDLs are a type of cholesterol that are a product of vldl degradation and result in ldl cholesterol when broken down.

Ischemia

The definition of ischemia, and what it means in terms of your cholesterol.

Ischemic Heart Disease

Ischemic heart disease is a condition where an inadequate blood supply reaches vessels of the heart.

Lipid Panel

A lipid panel is a series of tests that measures the amount of the different types of cholesterol and triglycerides in your blood.

Lipid

A lipid is a fat-like molecule that does not have the ability to dissolve in water. It is one of the major building blocks of animal cells. Many times, it will be referred to as a "fat".

Lipoprotein (a)

Lipoprotein a is a type of cholesterol that consists of LDL cholesterol attached to apolipoprotein a. When lipoprotein a is high, you might be at an increased risk of heart disease.

Lipoprotein Associated Phospholipase A2

Lipoprotein associated phospholipase A2 is an enzyme released by white blood cells and promotes inflammation. It is a marker for heart disease and contributes to atherosclerosis

Lipoprotein

A lipoprotein is a combination of a fat and protein molecule. The protein helps to transport fat to where it is needed in the body.

Low Density Lipoprotein

Low density lipoproteins, or LDL, are a type of cholesterol in your blood. This definition will explain to you why LDL is also referred to as the "bad" cholesterol.

Macrophage

Macrophages defend the body against foreign cells, like bacteria. They can also contribute to the formation of atherosclerosis, along with high cholesterol and high triglyceride levels.

Monounsaturated Fats

Monounsaturated fats are healthy fats that lower LDL cholesterol and raise HDL cholesterol. Monounsaturated fats are found in nuts and oils. Learn more about monounsaturated fats.

Myalgia

Myalgia is a set of symptoms that includes muscle pain, weakness, and tenderness in one muscle or a group of muscles.

Myocardial Infarction

This definition describes what a myocardial infarction is and how it relates to high cholesterol.

Myopathy

Myopathy is a general term that refers to any disease of muscle tissue that can arise at any point in life.

Nutrient Claims

A nutrient claims are statements on food packaging that establishes the quantity of a particular ingredient.

Occlusion

An occlusion is a complete blockage of a vessel.

Omega-3 Fatty Acids

A type of unsaturated fats that are classified as an essential fatty acid, which means that they cannot be made by the body and must be obtained from the diet.

Oxidized Low Density Lipoprotein

An oxidized low density lipoprotein is a form of ldl that has been oxidized. Oxidized ldl can cause atherosclerosis by causing inflammation at the site of an artery and accumulation of fats within the artery.

Partially Hydrogenated Oils

Partially hydrogenated oils, also known as trans fats, are a type of fat that can raise cholesterol levels and contribute to heart disease.

Peripheral Vascular Disease

Peripheral vascular disease is a condition involving poor circulation to your legs. Find out what causes this condition, as well as the symptoms associated with it.

Phytosterols

Phytosterols are cholesterol-like compounds that lower cholesterol by interfering with absorption of cholesterol from the small intestine.

Plaque

A build up of cholesterol and other fats on the inner surface of blood vessels. The plaque can grow thick and narrow the vessel, restricting blood flow. High cholesterol levels can contribute to plaque formation.

Polyphenols

Polyphenols are a group of chemicals that have many potential health benefits. There are several foods containing polyphenols, including fruits, vegetables, and other plants. They are classified as polyphenol antioxidants, meaning that they remove free radicals from the body.

Polyunsaturated Fats

Polyunsaturated fats are found in fish and grains. Polyunsaturated fats lower LDL cholesterol and raise HDL cholesterol. Polyunsaturated fats are also known as a healthy fat.

Rhabdomyolysis

Rhabdomyolysis is a rare, but serious, condition in which skeletal muscle fibers rapidly break down and release their byproducts into the bloodstream.

Saturated Fat

Saturated fats are in animal products and are solid at room temperature. Saturated fats have been known to raise LDL cholesterol levels.

Soluble Fiber

Soluble fiber is contained in many foods, such as psyllium, beans, nuts, and some fruits and vegetables. Studies have shown that soluble fiber can lower LDL cholesterol and reduce your risk for heart disease.

Statin

Statins are a type of drug that help lower your cholesterol. This definition will tell you more about them.

Stenosis

Stenosis is a condition where a blood vessel has become abnormally narrowed.

Stent

This definition explains what a stent is and how it helps restore blood flow to important to vital tissues in the body.

Thrombosis

The definition of thrombosis and how it relates to high cholesterol.

Trans Fats

Trans fats are a type of fat that has been linked to raising LDL, lowering HDL, and contributing to the heart disease. Trans fats are added to foods to extend their shelf life and to add texture. Eating high amounts of trans fats can raise your cholesterol and contribute to heart disease.

Triglycerides

This will tell you what triglycerides do and what their function is in your body.

Unsaturated fats

This definition will tell you about unsaturated fats, or the "good" fats, and how they may help to lower your cholesterol.

Very Low Density Lipoprotein

Very low density lipoproteins, or VLDL, are made up of triglycerides, cholesterol, and proteins. VLDL carries cholesterol from your liver to organs and tissues in the body. VLDL is a precursor to LDL.

What Is Intermittent Claudication?

Intermittent claudication is a cluster of symptoms characterized by a painful cramping pain in a muscle groups usually induced by exercise.

Xanthoma

A xanthoma is a yellowish to white bump - or nodule - that occurs underneath the skin or on tendons.
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