The function of Diacylglycerol Acyltransferase (DGAT) 1 and 2 in cardiac metabolism has been controversial for many years due to the inability of some studies to demonstrate the effect of these enzymes on coronary artery disease (CAD).
In a recent study, investigators demonstrated that high levels of ceramide production by LDL-receptor cells are associated with an increased risk for morbidity and mortality following myocardial infarction or stroke and that a ceramide precursor pathway may be a fundamental target for medicare resistant coronary artery disease (MRCAD).
Diacylglycerol Acyltransferase (DGAT) 1 and 2 are integral enzymes that catalyze the oxidation of fatty acids within the heart and liver. These two enzymes help convert triglycerides (triglycerides are molecules of triglycerides that describe a triglyceride as a large solid) into another type of molecule, ceramide.
Ceramide is then used to promote heat generation in the heart and liver and to help tolerate high levels of triglycerides. By improving the balance of ceramide and triglycerides within these cells, TG improves and metabolic syndrome is less likely to develop.
Diacylglycerol Acyltransferase (DGAT) 1 and 2 are coupled hepatically to increase fat oxidation and are found in the outermost membrane of cells. Both enzymes are activated by the action of the phospholipase D1/D2 family of enzymes. Both are critical for the process of fatty acid oxidation requiring fourteen different substrates for activation by either enzyme, placing them at the center of a complex regulated by large numbers of genes!
The primary metabolic function of Diacylglycerol Acyltransferase (DGAT) 1 and Diacylglycerol Acyltransferase (DGAT) 2, respectively, is to combine cholesterol and Acetyl CoA.
How does Cholesterolysis happen?
Cholesterol occurs when either of these enzymes is incompletely catalyzed by other proteins. As a result, excess cholesterol is deposited in lipids (fats) within the cells. Once inside these Lipids, these particles attach themselves to Organelles (i.e., lipoproteins) forming cholesterol plaques within existing tissues and arterial walls.
Research using rabbit head debased techniques has identified the first functional role for diacylglycerol acyltransferase 1 (DGAT) and 2 (DGAT-2) in heart muscle cells. These findings provide the basis for generating a new class of drugs designed to target these enzymes and target heart disease. The study is published in the journal Angewandte Chemie International Edition.
The primary metabolic pathway of ketosis involves the production of two enzymes, Diacylglycerol Acyltransferase 1 (DGAT1) and 2 (DGAT2), which are responsible for removing acetyl groups from fatty acids and phospholipids, respectively. These enzymes are localized within the mitochondria and mediate the conversion of triglycerides to fat in the liver.
Upon activation by leukocytes and other immune cells within the liver, these enzymes begin the process of oxidation catalyzed by fatty acids within mitochondria.
Consequently, upon reaching blood-retrieval sites such as the coronary arteries or capillaries, ketone bodies are generated and propelled towards the heart where they can be immediately successfully utilized.
The major muscle protein marketed for strength training is diacylglycerol acyltransferase 1 (DGAT-1) and 2 (DGAT), encoded by the diacylglycerol lipase (DGL) gene on chromosomes 14 and 19. Diacylglycerol is released by many tissues and end organs and bound to lipoprotein membranes via active transport by eukaryotic cells. It plays an important role in muscle growth and function
Diacylglycerol a 2,3-diamino acyltransferase (DGAT) 1 is primarily found in the liver as a coenzyme. It is involved in fatty acid oxidation and cellular signal transduction. Congenital heart disease is known to cause low levels of cholesterol and high levels of triglycerides in the blood. According to research from
An Obesity Society, poor diet, physical inactivity, and a sedentary lifestyle are all associated with conditions that increase your risk for cardiovascular disease. Drinking regular amounts of water and raising the level of physical activity are the two most effective actions we can take to improve our overall health and reduce our risk for cardiovascular disease.
DGAT1 and 2 are important for optimal heart health due to the way they catalyze fatty acid oxidation in the heart. This article will discuss the role of these enzymes in cardiopathy and metabolism as well as how they can be used to treat disorders of fatty acid oxidation.
- Current Practice:
Treatment of Atherosclerosis with Liposomal Delivery Systems
High-density lipoprotein (HDL) cholesterol is considered the good cholesterol, and low-density lipoprotein (LDL) cholesterol is considered the bad cholesterol. Cholesterol transports cholesterol in the bloodstream. If LDL particles are too large or dense, they cannot be transported as smoothly and efficiently through the blood vessel walls. Consequently, they remain stuck on the side of the artery or plastered on top of it, causing plaque to build up.
Atherosclerosis is a chronic disease that mainly affects the heart valves of the legs and hips. It most commonly affects older adults, usually because they have had their entire heart removed as a young adult or have suffered a major trauma such as a cardiac arrest or coronary artery disease.
DGAT, transketolase-,1, and -2 (KT) play important roles in fatty acid oxidation and cardioprotection. In this review, we will discuss current findings on the roles of these enzymes in healthy subjects and patients with coronary artery disease (CAD). We will also review studies that evaluated the effects of pharmacologic agents upon these enzymes in these patients.
High Triglycerides: What You Need to Know
High triglycerides in the blood are a concern for your heart health. See an image of what high triglycerides look like inside your body, learn whether this indicates you need treatment and get information about the medications used to treat high triglycerides.
If you have high triglycerides, there is much you can do to control them. This guide will help you address the issues that cause high triglycerides and keep them from damaging your health.
A diagnosis of high triglycerides doesn’t mean you’re a “heart attack waiting to happen.” You may be at low risk for heart disease but should still lower triglyceride levels with diet and lifestyle changes.
Health professionals and patients have long known that high triglycerides are a key indicator of heart disease. Now, an authoritative report from the American Heart Association breaks down the risks associated with high triglycerides and offers treatment options that may be better tolerated by patients than station drugs.
What are high triglycerides?
High triglycerides in the blood can be a serious health threat. In this article, we explain why they matter and what you can do about them.
High triglycerides make you more susceptible to heart disease, which puts you at much greater risk of a heart attack or stroke. Because your triglyceride levels are directly connected to LDL cholesterol and your overall risk for cardiovascular disease, it
Why Are High Triglycerides Bad?
Learn why having high triglycerides is more than just bad cholesterol read. It’s when triglycerides – a type of fat in the blood – get out of whack that they become a cause for concern. Learn how to manage your blood fats and stay healthy every day.
High triglycerides, or blood fats, are not good for your heart. High triglyceride levels are an important risk factor for the development of coronary heart disease and atherosclerosis
Triglycerides are a form of fat in your blood. If you have high triglycerides, it means your body has too much fat in your blood.
High triglycerides are recognized as a risk factor for heart disease. This is largely due to the association between elevated triglycerides and low HDL cholesterol. In other words, if you have high triglycerides, this generally indicates that you have low levels of healthy “good” cholesterol (HDL) that can protect your arteries from hardening and plaque build-up.
Triglycerides are the most common blood fat and a marker for heart disease risk—one of the leading killers in the United States. People with high triglycerides have a two to three times greater risk of heart attack than people with low triglycerides.
A high triglyceride level is mostly defined as an unhealthy amount of triglycerides that are in your blood.
High triglycerides are caused by excess amounts of fat in the blood and can be caused by a healthy diet and strenuous exercise routine, medical conditions, or genetics. Triglycerides can make it hard for your body’s organs to do their job and cause diseases that might lead to death or other serious side effects.