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Related Concept Videos

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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...
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Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
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The microscopic anatomy of the liver is a complex and intricate system that comprises numerous structural units known as liver lobules, each of which is comparable in size to a sesame seed. These hexagonal structures consist of plates of liver cells or hepatocytes, which are characterized by their versatility and abundance of cellular apparatus like rough and smooth ER, Golgi apparatus, peroxisomes, and mitochondria.
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Related Experiment Videos

Hepatobiliary pathology.

Jay H Lefkowitch1

  • 1College of Physicians and Surgeons of Columbia University, New York, New York 10032, USA. jhl3@columbia.edu

Current Opinion in Gastroenterology
|February 11, 2005
PubMed
Summary

This review details liver disease pathology, including viral hepatitis C, nonalcoholic steatohepatitis, and drug-induced liver injury. It highlights molecular insights into disease mechanisms and potential complications like liver cancer.

Area of Science:

  • Hepatology
  • Molecular Biology
  • Pathology

Background:

  • Advances in molecular biology, immunohistochemistry, and electron microscopy enhance understanding of liver diseases.
  • Key diseases discussed include hepatitis C virus (HCV) infection, nonalcoholic steatohepatitis (NASH), and bile ductular reactions.
  • Pathological insights into viral infections, steatosis, drug-induced liver injury, and cholestatic conditions are reviewed.

Purpose of the Study:

  • To provide a comprehensive overview of recent advancements in understanding liver disease pathogenesis and histopathology.
  • To highlight key molecular and cellular mechanisms underlying various liver conditions.
  • To inform pathologists about the spectrum of liver pathologies and their potential complications.

Main Methods:

Related Experiment Videos

  • Review of findings from molecular biology techniques.
  • Analysis of immunohistochemistry and transmission electron microscopy data.
  • Synthesis of current research on liver disease mechanisms and pathology.

    • Main Results:

    • HCV infection exhibits viral-like particles and steatosis linked to core protein interactions.
    • Highly active antiretroviral therapy (HAART) can cause significant hepatic injury.
    • Nonalcoholic steatohepatitis (NASH) is associated with reactive oxygen species and can lead to hepatocellular carcinoma.
    • Bile ductular proliferation is regulated by specific molecules, and cholangiocarcinoma is not a complication of small duct PSC.

    Conclusions:

    • Understanding molecular pathways is crucial for diagnosing and managing liver diseases.
    • Hepatocellular carcinoma is an emerging complication of NASH.
    • Further research into hepatic stem cells and transport proteins is needed for conditions like hemochromatosis.