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Related Concept Videos

Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

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.
Considering cholesterol and...
Hepatic Drug Clearance: Role of Transporters01:14

Hepatic Drug Clearance: Role of Transporters

In the liver and bile canaliculi, influx and efflux transporters modification can influence intrinsic clearance. Transporters play a significant role in moving drugs within liver cells. Elaborate models, such as the Biopharmaceutical Classification System (BCS), are essential to relate transporters to drug disposition. This system categorizes drugs into four classes based on solubility and permeability, providing insights into elimination routes and the effects of transporters following oral...
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Lipid Absorption

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Membrane Asymmetry Regulating Transporters01:19

Membrane Asymmetry Regulating Transporters

Enzymes like flippase, floppase, and scramblase transfer phospholipids from one layer to another in the membrane, thereby affecting membrane asymmetry.
Flippase
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Cellular Membranes and Drug Transport

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Phospholipids arrange themselves into a bilayer, with hydrophilic heads oriented outward and hydrophobic tails facing inward.

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Reverse cholesterol transport: from classical view to new insights.

World journal of gastroenterologyยท2010
See all related articles

Related Experiment Video

Updated: Jun 6, 2026

Cholesterol Efflux Assay
07:54

Cholesterol Efflux Assay

Published on: March 6, 2012

Reverse cholesterol transport revisited.

Astrid-E van der Velde

    World Journal of Gastroenterology
    |December 16, 2010
    PubMed
    Summary

    Reverse cholesterol transport describes how the body removes excess cholesterol. This review revisits the classical concepts of this essential high-density lipoprotein pathway.

    Area of Science:

    • Cardiovascular Science
    • Lipid Metabolism

    Background:

    • The classical definition of reverse cholesterol transport (RCT) involves high-density lipoprotein (HDL)-mediated cholesterol efflux from peripheral tissues.
    • This cholesterol is transported via the hepatobiliary system for excretion through the intestines.

    Discussion:

    • RCT has been a subject of intensive research since its description in the 1970s.
    • This highlight revisits the foundational concepts of RCT.
    • The evolving understanding of RCT is explored.

    Key Insights:

    • HDL plays a crucial role in removing excess cholesterol from the body.
    • The hepatobiliary system and intestinal excretion are key components of cholesterol homeostasis.
    • Revisiting classical RCT concepts provides a foundation for current research.

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    Outlook:

    • Further investigation into RCT mechanisms is essential for understanding cardiovascular health.
    • Exploring variations and nuances of RCT can reveal new therapeutic targets.
    • Continued research on RCT will refine our understanding of lipid metabolism and excretion.