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Related Concept Videos

Hepatitis01:25

Hepatitis

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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.
86
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

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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...
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Autoimmune Disorders01:29

Autoimmune Disorders

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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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Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

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Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
1.9K
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

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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...
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Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

23
Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence...
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Updated: May 3, 2026

The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
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[Autoimmune hepatitis].

V Ia Shvarts, A M Nogaller

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    Summary
    This summary is machine-generated.

    Autoimmune hepatitis (AH) is a chronic liver disease affecting women more often. Early diagnosis and immunosuppressive treatment lead to remission in 80% of cases, preventing liver cirrhosis.

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    Area of Science:

    • Hepatology
    • Immunology
    • Internal Medicine

    Context:

    • Autoimmune hepatitis (AH) is a chronic, immune-mediated liver inflammation.
    • It disproportionately affects women and presents with diverse clinical and serological markers.
    • Untreated AH leads to rapid cirrhosis and high mortality.

    Purpose:

    • To define the key characteristics, diagnostic criteria, and treatment outcomes of autoimmune hepatitis.
    • To highlight the importance of timely diagnosis and immunosuppressive therapy.

    Summary:

    • AH involves liver inflammation driven by the immune system, often accompanied by other autoimmune conditions.
    • Diagnosis relies on excluding other causes and identifying specific autoantibodies (ANA, SMA, LKM, SLA).
    • Treatment with glucocorticoids and immunosuppressors achieves remission in 80% of patients, improving life expectancy.

    Impact:

    • Effective management of autoimmune hepatitis can prevent disease progression to liver cirrhosis.
    • Early intervention significantly improves patient prognosis, leading to complete remission and normal life expectancy.