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Related Concept Videos

Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

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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Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

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Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

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Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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Coronary Artery Disease II: Pathophysiology

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Related Experiment Video

Updated: Jun 5, 2026

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
09:15

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles

Published on: November 10, 2017

[Dyslipidemia and atherosclerosis].

Shinji Koba1, Tsutomu Hirano

  • 1Division of Cardiology, Metabolism and Endocrinology, Showa University School of Medicine.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|January 14, 2011
PubMed
Summary

Dyslipidemia, characterized by abnormal lipoprotein levels, significantly drives atherosclerosis. Small dense LDL (sdLDL) and dysfunctional HDL are key players in this process, impacting cardiovascular health.

Area of Science:

  • Lipid metabolism and cardiovascular disease research.

Context:

  • Dyslipidemia is a primary risk factor for atherosclerosis.
  • Various lipoproteins, including LDL, VLDL remnants, and HDL, play critical roles in cardiovascular health.
  • Modified LDL, particularly small dense LDL (sdLDL), is strongly implicated in atherogenesis.

Purpose:

  • To elucidate the roles of different lipoproteins in the development of atherosclerosis.
  • To highlight the pro-atherogenic nature of modified LDL and sdLDL.
  • To emphasize the anti-atherogenic functions of HDL and the implications of its dysfunction.

Summary:

  • Modified LDL, especially sdLDL, promotes foam cell formation and atherosclerosis due to increased susceptibility to oxidation and longer residence times.
  • Delayed clearance of triglyceride-rich lipoproteins leads to sdLDL formation, linked to insulin resistance and postprandial hyperlipidemia.

Related Experiment Videos

Last Updated: Jun 5, 2026

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
09:15

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles

Published on: November 10, 2017

  • HDL's anti-inflammatory and antioxidative properties are crucial for reverse cholesterol transport; its dysfunction and decreased levels are pro-atherogenic.

    • Impact:

    • Understanding these lipoprotein dynamics is vital for developing targeted therapies against atherosclerosis.
    • Identifying sdLDL and HDL dysfunction as key factors can improve risk stratification for cardiovascular diseases.
    • This knowledge contributes to managing metabolic dyslipidemia and preventing related complications.