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Related Concept Videos

Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
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Cirrhosis I: Introduction

Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
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Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

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In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
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Liver Regeneration

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The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...

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Related Experiment Video

Updated: Jul 3, 2026

Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration
10:42

Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration

Published on: May 13, 2016

Hepatic fibrosis -- overview.

Scott L Friedman1

  • 1Division of Liver Diseases, Box 1123, Mount Sinai School of Medicine, 1425 Madison Avenue, Room 11-70C, New York, NY 10029-6574, United States. Scott.Friedman@mssm.edu

Toxicology
|July 30, 2008
PubMed
Summary
This summary is machine-generated.

Hepatic fibrosis research has advanced, identifying hepatic stellate cells and other matrix-producing cells as key players. This knowledge aids in developing new treatments for liver disease.

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Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
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Mapping Hepatic Stellate Cell Morphology in Mouse Models of Liver Fibrosis
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Last Updated: Jul 3, 2026

Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration
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Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration

Published on: May 13, 2016

Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
08:56

Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis

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Mapping Hepatic Stellate Cell Morphology in Mouse Models of Liver Fibrosis
06:55

Mapping Hepatic Stellate Cell Morphology in Mouse Models of Liver Fibrosis

Published on: February 13, 2026

Area of Science:

  • Hepatology and immunology research focused on liver disease.

Background:

  • Hepatic fibrosis, or liver scarring from chronic injury, is a complex process.
  • Significant progress in understanding fibrogenesis has been made over the last 20 years.

Purpose of the Study:

  • To review recent advances in understanding the cellular sources and mechanisms of hepatic fibrosis.
  • To highlight the role of hepatic stellate cells and other contributing cell types.
  • To discuss the implications for developing therapeutic strategies for chronic liver disease.

Main Methods:

  • Review of recent scientific literature on hepatic fibrosis.
  • Analysis of cellular and molecular mechanisms involved in liver scarring.
  • Synthesis of findings related to fibrogenic cells, cytokines, and immune responses.

Main Results:

  • Hepatic stellate cells are central to fibrosis, acting as fibrogenic, immunomodulatory, and homeostatic regulators.
  • Additional matrix-producing cells identified include bone marrow cells, portal fibroblasts, and cells undergoing epithelial-mesenchymal transition.
  • Cytokines, their receptors, and inflammatory cells play dynamic roles in the fibrotic process.

Conclusions:

  • Recent findings provide a foundation for further research into the mechanisms of hepatic fibrosis.
  • This knowledge is crucial for developing targeted therapies to limit fibrosis, promote liver repair, and enhance regeneration in patients with chronic liver disease.