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Related Concept Videos

Autoimmune Disorders01:29

Autoimmune Disorders

1.9K
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
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Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment01:08

Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment

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Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
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Hepatic Portal System01:21

Hepatic Portal System

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The hepatic portal system, a critical part of our circulatory framework, transports nutrient-laden, deoxygenated blood from the gastrointestinal tract and spleen to the liver. This ingenious system plays an indispensable role in maintaining our body's metabolic equilibrium.
At its core, the hepatic portal vein is the result of a confluence of the superior and inferior mesenteric veins along with the splenic vein. Each of these veins has a unique role. The superior mesenteric vein is...
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Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

255
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
255
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

335
Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
335
Hepatic Drug Excretion: Influencing Factors01:16

Hepatic Drug Excretion: Influencing Factors

626
The biliary system of the liver, crucial for bile secretion and drug excretion, comprises intrahepatic bile ducts that merge to form the common hepatic duct. This duct, carrying hepatic bile, combines with the cystic duct, draining the gallbladder and forming the common bile duct, which empties into the duodenum. Bile, produced by hepatic cells lining the bile canaliculi, is composed primarily of water, bile salts, pigments, electrolytes, and lesser amounts of cholesterol and fatty acids. Bile...
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Related Experiment Video

Updated: Feb 14, 2026

The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
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Autoimmune Hepatitis in Children.

Saumya Pathak, Deepak Kamat

    Pediatric Annals
    |February 16, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Autoimmune hepatitis (AIH) is an immune-mediated liver disease with variable symptoms in children. Early diagnosis and immunosuppressant therapy are crucial for the best outcomes in pediatric AIH patients.

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    Area of Science:

    • Pediatric Hepatology
    • Immunology
    • Internal Medicine

    Background:

    • Autoimmune hepatitis (AIH) is an immune-mediated inflammatory liver disease.
    • AIH in children presents with diverse clinical manifestations, ranging from acute to chronic or silent disease.
    • Two types of AIH exist, distinguished by specific autoantibodies.

    Purpose of the Study:

    • To highlight the variable presentation of autoimmune hepatitis in children.
    • To emphasize the importance of suspecting and excluding AIH in pediatric liver disease.
    • To underscore the necessity of early diagnosis and treatment for optimal patient outcomes.

    Main Methods:

    • Diagnosis involves a comprehensive approach combining clinical signs, laboratory tests, and histopathology.
    • Exclusion of other common liver diseases is a critical component of the diagnostic process.
    • Evaluation of clinical manifestations, laboratory findings, and liver biopsy are key.

    Main Results:

    • AIH can progress to cirrhosis if left untreated, and sometimes even with treatment.
    • Variable clinical presentations necessitate a high index of suspicion in children with liver issues.
    • Early detection and prompt immunosuppressive treatment are linked to better outcomes.

    Conclusions:

    • Autoimmune hepatitis requires prompt diagnosis and management in pediatric patients.
    • Early immunosuppressant therapy is vital for improving outcomes in childhood AIH.
    • Comprehensive diagnostic evaluation is essential to confirm AIH and guide treatment.