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Related Concept Videos

Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

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.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Cirrhosis I: Introduction01:23

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

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

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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Related Experiment Video

Updated: Jun 30, 2026

A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks
10:28

A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks

Published on: June 26, 2020

[Current problems of hepatitis].

H P Dienes1, U Drebber

  • 1Kompetenznetzwerk HepNet, Deutsche Leberstiftung, Institut für Pathologie, Universitätsklinikum Köln. hans-peter.dienes@uk-koeln.de

Der Pathologe
|September 30, 2008
PubMed
Summary
This summary is machine-generated.

Recent findings highlight diverse hepatitis virus forms, including Epstein-Barr virus (EBV) and cytomegalovirus (CMV) hepatitis, often requiring viral genome detection. Simplified criteria aid autoimmune hepatitis diagnosis.

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Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
04:11

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA

Published on: December 15, 2023

Related Experiment Videos

Last Updated: Jun 30, 2026

A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks
10:28

A Cell Culture Model for Producing High Titer Hepatitis E Virus Stocks

Published on: June 26, 2020

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA
04:11

Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA

Published on: December 15, 2023

Area of Science:

  • Hepatology and Virology
  • Immunology
  • Gastroenterology

Context:

  • Recent advancements in understanding hepatitis virus diversity, disease progression, and comorbidities.
  • Emergence of new hepatitis forms in Central Europe.
  • Challenges in diagnosing autoimmune hepatitis in clinical practice.

Purpose:

  • To review current findings on various hepatitis virus forms.
  • To discuss the role of Epstein-Barr virus (EBV) and cytomegalovirus (CMV) in hepatitis, particularly in sero-negative cases.
  • To introduce a new simplified scoring system for diagnosing autoimmune hepatitis.

Summary:

  • Hepatitis virus research has expanded, revealing complex disease courses and links to comorbidities.
  • Epstein-Barr virus (EBV) and cytomegalovirus (CMV) can cause hepatitis, often diagnosed by detecting the viral genome in liver tissue, especially in sero-negative patients.
  • A new, simplified scoring system has been developed to assist in the clinical diagnosis of autoimmune hepatitis.

Impact:

  • Improved diagnostic strategies for viral and autoimmune hepatitis.
  • Enhanced understanding of hepatitis etiology and pathogenesis.
  • Potential for earlier and more accurate patient management and treatment.