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Related Concept Videos

Hepatitis01:25

Hepatitis

34
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.
34
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

693
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
693
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

327
In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses...
327
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

369
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
369
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

256
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...
256
Chronic Pancreatitis I: Introduction01:24

Chronic Pancreatitis I: Introduction

871
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
871

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Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix
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Chronic hepatitis in children

G Maggiore1

  • 1Istituto di Clinica Pediatrica, Università di Pisa, Italy.

Current Opinion in Pediatrics
|October 1, 1995
PubMed
Summary
This summary is machine-generated.

Autoimmune hepatitis and viral hepatitis (B and C) are liver diseases requiring specific treatments. Immunosuppression is key for autoimmune hepatitis, while antiviral therapies like interferon are used for chronic viral hepatitis in children.

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Area of Science:

  • Hepatology
  • Immunology
  • Virology

Background:

  • Autoimmune hepatitis (AIH) is an inflammatory liver disease potentially leading to cirrhosis and liver failure.
  • Distinct subgroups of AIH are identified by specific autoantibodies, including anti-smooth muscle and anti-liver kidney microsomal antibodies.
  • Viral hepatitis, particularly B and C, presents unique challenges in pediatric populations.

Purpose of the Study:

  • To summarize current understanding and management of autoimmune hepatitis.
  • To review the role of viral factors and treatment strategies for chronic hepatitis B in children.
  • To discuss the epidemiology and potential treatment of chronic hepatitis C in children.

Main Methods:

  • Literature review of autoimmune hepatitis, chronic hepatitis B, and chronic hepatitis C in pediatric populations.
  • Analysis of diagnostic markers and therapeutic responses for each condition.
  • Synthesis of information on disease progression and management strategies.

Main Results:

  • Autoimmune hepatitis is managed with immunosuppressive therapy (steroids, azathioprine), with cyclosporine as an option for refractory cases.
  • Hepatitis B virus (HBV) precore mutants are linked to persistent replication and liver disease in children, though interferon alfa's efficacy differs from adults.
  • Hepatitis C virus (HCV) infection in children is often acquired via blood transfusions, with HIV coinfection increasing vertical transmission risk; chronic HCV is typically mild in childhood.

Conclusions:

  • Effective management of autoimmune hepatitis involves tailored immunosuppressive regimens.
  • Interferon alfa can accelerate HBV seroconversion in children, aiding viral clearance.
  • While often asymptomatic, chronic hepatitis C in children may benefit from interferon therapy, and prevention of perinatal transmission is crucial.