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Related Concept Videos

Liver Regeneration01:24

Liver Regeneration

The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...
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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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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...
The Effect of Aging on Tissues01:19

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Related Experiment Video

Updated: May 13, 2026

Drug-Induced Senescence in Liver Cells Promotes M2 Macrophage Polarization: Implications for Tyrosine Kinase Inhibitor-Associated Hepatotoxicity
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Drug-Induced Senescence in Liver Cells Promotes M2 Macrophage Polarization: Implications for Tyrosine Kinase Inhibitor-Associated Hepatotoxicity

Published on: October 17, 2025

Mast cells and the liver aging process.

Fabio Grizzi1, Giuseppe Di Caro1, Luigi Laghi1

  • 1Laboratory of Molecular Gastroenterology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy.

Immunity & Ageing : I & A
|March 19, 2013
PubMed
Summary
This summary is machine-generated.

Liver disease in the elderly presents subtly due to aging and immune changes. This review explores liver aging, immunosenescence, and the role of mast cells in innate immunity.

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Drug-Induced Senescence in Liver Cells Promotes M2 Macrophage Polarization: Implications for Tyrosine Kinase Inhibitor-Associated Hepatotoxicity
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Long Term Intravital Multiphoton Microscopy Imaging of Immune Cells in Healthy and Diseased Liver Using CXCR6.Gfp Reporter Mice
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Long Term Intravital Multiphoton Microscopy Imaging of Immune Cells in Healthy and Diseased Liver Using CXCR6.Gfp Reporter Mice

Published on: March 24, 2015

Area of Science:

  • Gerontology
  • Immunology
  • Hepatology

Background:

  • Clinical manifestations of liver disease in the elderly are influenced by cumulative aging effects and the organism's reduced ability to adapt to insults.
  • Liver function tests are generally not significantly affected by age, but liver disease presentation, like viral hepatitis, can be subtler in older individuals.
  • Human immunosenescence involves the decline of T lymphocyte function with age, while innate immunity remains largely unaffected or even enhanced.

Purpose of the Study:

  • To review the relationship between the aging process of the liver.
  • To examine the role of mast cells in the innate immune response within the context of liver aging.

Main Methods:

  • Literature review focusing on liver aging.
  • Analysis of immunosenescence and its impact on liver immunity.
  • Examination of mast cell involvement in innate immune responses related to the liver.

Main Results:

  • Liver aging affects clinical presentations, often making them less obvious in the elderly.
  • Immunosenescence impacts adaptive immunity more than innate immunity.
  • Mast cells are identified as key effectors in complex innate immune responses within the aging liver.

Conclusions:

  • The aging liver's response to disease is modulated by systemic aging and immunosenescence.
  • Mast cells play a significant role in the innate immune defense of the aging liver.
  • Understanding these interactions is crucial for managing liver disease in the elderly.