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Related Concept Videos

Overview of Lipid Metabolism01:24

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Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

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Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
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Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
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Atherosclerosis I: Introduction01:30

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Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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Updated: Dec 20, 2025

Assessing Whole-Body Lipid-Handling Capacity in Mice
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Causes and Consequences of Hypertriglyceridemia.

Chris J Packard1, Jan Boren2, Marja-Riitta Taskinen3

  • 1Institute of Cardiovascular and Medical Sciences, Glasgow University, Glasgow, United Kingdom.

Frontiers in Endocrinology
|June 2, 2020
PubMed
Summary
This summary is machine-generated.

High triglyceride levels stem from excess production and poor clearance of lipoproteins. Lowering triglycerides may reduce atherosclerosis risk, but the exact relationship requires further research.

Keywords:
VLDLapoBchylomicronlipidmetabolism

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Area of Science:

  • Lipid metabolism and cardiovascular disease research.
  • Biochemistry and molecular biology of lipoprotein regulation.

Background:

  • Elevated plasma triglyceride is linked to overproduction and impaired clearance of triglyceride-rich lipoproteins, including very-low-density lipoproteins (VLDL) and chylomicrons.
  • Hypertriglyceridemia leads to the accumulation of VLDL and its lipolytic products, resulting in remnant lipoproteins and small, dense LDL.

Purpose of the Study:

  • To investigate the mechanisms behind hypertriglyceridemia and its contribution to atherosclerotic cardiovascular disease.
  • To explore the role of key regulators in triglyceride-rich lipoprotein metabolism as potential pharmacological targets.

Main Methods:

  • Analysis of lipoprotein metabolism pathways, including VLDL and LDL delipidation.
  • Identification of key regulatory molecules involved in triglyceride-rich lipoprotein clearance.
  • Review of current pharmacological interventions targeting lipoprotein metabolism.

Main Results:

  • Perturbations in the VLDL-LDL delipidation cascade contribute to increased remnant lipoproteins and small, dense LDL.
  • Aberrant lipoprotein species are implicated in the elevated risk of atherosclerotic cardiovascular disease.
  • Several key regulators of triglyceride-rich lipoprotein metabolism have been identified as targets for intervention.

Conclusions:

  • Hypertriglyceridemia involves complex alterations in lipoprotein metabolism contributing to cardiovascular risk.
  • While therapeutic targets exist, the precise link between triglyceride lowering and atherosclerosis risk reduction remains unclear.