What is a lipoprotein blood test?
A lipoprotein (a) test measures the level of lipoprotein (a) in your blood. Lipoproteins are substances made of protein and fat that carry cholesterol through your bloodstream. There are two main types of cholesterol: High-density lipoprotein (HDL), or “good” cholesterol.
What is a good lipoprotein level?
Normal values for this test are less than 30 milligrams per deciliter (mg/dL). In many instances, people will have no detectable levels of Lp(a) in their bloodstream. If your results are greater than the 30 mg/dL threshold, this may indicate increased risk of atherosclerosis, heart attack, or stroke.
What causes high lipoprotein levels?
Lp(a) levels are largely determined by genetics. Mutations in the LPA gene can lead to high levels [11]. Mutations in this gene can result in different sizes of apolipoprotein(a). Research has found that people with smaller apolipoprotein(a) particles have higher Lp(a) levels [11].
What is a lipoprotein particle?
Lipoproteins are complex particles that have a central hydrophobic core of non-polar lipids, primarily cholesterol esters and triglycerides. This hydrophobic core is surrounded by a hydrophilic membrane consisting of phospholipids, free cholesterol, and apolipoproteins (Figure 1).
How do you read lipoprotein results?
Low-density lipoprotein is bad cholesterol. Think of the “L” in LDL as “lousy.” High LDL levels increase the risk of heart disease….But in general, LDL results are as follows:
- Optimal: Less than 100 mg/dL.
- Near optimal: 100-129 mg/dL.
- Borderline high: 130-159 mg/dL.
- High: 160-189 mg/dL.
What should I do if I have high lipoprotein A?
The best treatment for LP(a) is to reduce the cholesterol burden of the particle with a statin which will shrink the particle size. A new injectable treatment known as an anti-sense therapy which stops LP(a) being made is currently due to start phase 3 clinical research trials.
What happens if lipoprotein A is high?
High levels of LP(a) have now been identified as an independent risk factor in cardiovascular disease, with a causal link to atherosclerosis (furring up of arteries), heart attacks, strokes, aortic valve disease and heart failure.
How common is high lipoprotein A?
Indeed, elevated Lp(a) is the most common genetic dyslipidemia, with nearly 1 in 5 individuals affected in the United States [ie, based on Lp(a) >50 mg/dL or >120 nmol/L].
Why LDL is bad cholesterol?
LDL cholesterol is often called the “bad” cholesterol because it collects in the walls of your blood vessels, raising your chances of health problems like a heart attack or stroke. But cholesterol isn’t all dangerous. Your body needs it to protect its nerves and make healthy cells and hormones.
Are triglycerides lipoproteins?
Triglycerides are a major component of very-low-density lipoprotein (VLDL) and serve as a source of energy. They are broken down in the intestine, absorbed by intestinal cells, and combined with cholesterol and proteins to form chylomicrons that are transported in lymph to the bloodstream.
What is an LDL particle number?
LDL-P is a measurement of the number of LDL particles in serum as opposed to LDL-C which is the measurement of the amount of cholesterol inside the LDL particle.
What is a high level of lipoprotein A?
High levels of Lp(a) can create plaque in your blood vessels. This is a buildup of cholesterol that lessens blood flow through your arteries. A high level of Lp(a) can be a sign of cholesterol-related disease, such as coronary artery disease. Research has found it to be an independent risk factor for heart disease.
