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Related Concept Videos

Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

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...
Hepatic Drug Excretion: Influencing Factors01:16

Hepatic Drug Excretion: Influencing Factors

The biliary system of the liver, crucial for bile secretion and drug excretion, comprises intrahepatic bile ducts that merge to form the common hepatic duct. This duct, carrying hepatic bile, combines with the cystic duct, draining the gallbladder and forming the common bile duct, which empties into the duodenum. Bile, produced by hepatic cells lining the bile canaliculi, is composed primarily of water, bile salts, pigments, electrolytes, and lesser amounts of cholesterol and fatty acids. Bile...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

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Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Bioavailability Enhancement: Drug Permeability Enhancement01:27

Bioavailability Enhancement: Drug Permeability Enhancement

After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt secretion,...
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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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Hepatic Drug Excretion: Enterohepatic Cycling

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Related Experiment Video

Updated: May 26, 2026

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
08:42

Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

Published on: November 27, 2016

Bile acid sequestrants: more than simple resins.

Carolien Out1, Albert K Groen, Gemma Brufau

  • 1Center for Liver, Digestive and Metabolic Diseases, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Current Opinion in Lipidology
|December 22, 2011
PubMed
Summary

Bile acid sequestrants (BAS) improve glycemic control in type 2 diabetes and may influence energy expenditure. Further research is needed to confirm these metabolic effects in clinical trials.

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Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
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08:47

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Published on: October 25, 2012

Area of Science:

  • Metabolic regulation
  • Pharmacology

Background:

  • Bile acid sequestrants (BAS) have a long history in treating hypercholesterolemia.
  • Bile acids are increasingly recognized as key regulators of metabolism through signaling pathways.

Purpose of the Study:

  • To review recent studies on BAS in metabolic diseases.
  • To explore potential unexpected side-effects of BAS treatment.

Main Methods:

  • Review of recently published studies evaluating BAS.
  • Analysis of evidence regarding BAS effects on glycemic control and energy expenditure.

Main Results:

  • BAS improve glycemic control in type 2 diabetes patients, though mechanisms are unclear.
  • Emerging evidence suggests BAS can modulate energy expenditure.
  • Observed effects are linked to intestinal actions of BAS, including bile acid binding and signaling interference.

Conclusions:

  • Ongoing research aims to elucidate BAS mechanisms for improving glycemic control in type 2 diabetes.
  • Clinical trials are necessary to validate animal study findings on bile acids and energy metabolism.