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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...
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...
Liver Physiology01:30

Liver Physiology

The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of  70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can also...

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Related Experiment Video

Updated: May 30, 2026

Modeling Hepatitis B Virus Infection in Non-Hepatic 293T-NE-3NRs Cells
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Modeling Hepatitis B Virus Infection in Non-Hepatic 293T-NE-3NRs Cells

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Hepatitis: general principles.

Maria Grazia Clemente1, Kathleen Schwarz

  • 1Pediatric Liver Center, Johns Hopkins School of Medicine, Baltimore, MD, USA.

Pediatrics in Review
|August 3, 2011
PubMed
Summary
This summary is machine-generated.

This article explains how to evaluate hepatitis through laboratory tests and recognize its symptoms. It also covers hepatitis complications and causes in children.

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Published on: February 19, 2019

Area of Science:

  • Hepatology
  • Pediatric Gastroenterology
  • Clinical Diagnostics

Background:

  • Hepatitis, an inflammation of the liver, presents with diverse etiologies and clinical manifestations.
  • Early diagnosis and management are crucial for preventing severe liver damage and long-term complications.

Purpose of the Study:

  • To provide a comprehensive overview of hepatitis evaluation in pediatric patients.
  • To enhance understanding of hepatitis signs, symptoms, and complications.
  • To detail the laboratory diagnostic procedures and interpretation for hepatitis.

Main Methods:

  • Review of current literature on hepatitis diagnosis and management in children.
  • Description of key laboratory tests used in hepatitis evaluation, including serological markers and liver function tests.
  • Clinical case examples illustrating common presentations and diagnostic challenges.

Main Results:

  • Laboratory evaluation involves a stepwise approach, often starting with liver function tests and progressing to specific viral serologies.
  • Recognizing clinical signs such as jaundice, fatigue, and abdominal pain is vital for timely diagnosis.
  • Hepatitis can lead to acute liver failure, chronic liver disease, and hepatocellular carcinoma.

Conclusions:

  • A thorough understanding of laboratory diagnostics, clinical presentation, and potential complications is essential for effective hepatitis management in children.
  • Prompt identification of hepatitis causes guides appropriate treatment strategies and improves patient outcomes.