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Related Concept Videos

Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

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Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
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Chronic Pancreatitis I: Introduction01:24

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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...
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The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
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Acute Pancreatitis II: Clinical Manifestations and Management01:30

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Acute pancreatitis presents a complex medical emergency characterized by rapid onset inflammation of the pancreas, demanding timely diagnosis and management to prevent complications. The condition primarily manifests through severe upper abdominal pain that often radiates to the back. This pain intensifies following the consumption of fatty foods. Accompanying symptoms such as nausea, vomiting, abdominal distention, fever, dyspnea, cyanosis, and jaundice can vary in intensity but significantly...
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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.
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Acute Pancreatitis I: Introduction01:27

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Pancreatitis is inflammation of the pancreas, an organ located behind the stomach. It can be either acute or chronic.
Acute pancreatitis is characterized by rapid inflammation of the pancreas, often caused by factors like gallstone blockage or excessive alcohol consumption. Chronic pancreatitis, on the other hand, is a slow, progressive inflammation that may result from long-term alcohol abuse, obstructions in the pancreatic duct, or genetic factors.
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Related Experiment Video

Updated: Nov 27, 2025

A Mouse Model of Chronic Liver Fibrosis for the Study of Biliary Atresia
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Current understanding of primary biliary cholangitis.

Atsushi Tanaka1

  • 1Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan.

Clinical and Molecular Hepatology
|December 3, 2020
PubMed
Summary

Primary biliary cholangitis (PBC) is an autoimmune liver disease characterized by bile duct destruction. Early diagnosis and ursodeoxycholic acid treatment have significantly improved patient survival rates.

Area of Science:

  • Hepatology
  • Immunology
  • Autoimmune Diseases

Background:

  • Primary biliary cholangitis (PBC) is a chronic cholestatic liver disease that can lead to cirrhosis and liver failure.
  • PBC predominantly affects middle-aged women but also occurs in younger women and men.
  • It is considered a model autoimmune disease due to specific autoantibodies (antimitochondrial antibodies - AMAs), immune cell infiltration, and associated autoimmune conditions.

Purpose of the Study:

  • To provide an overview of Primary Biliary Cholangitis (PBC).
  • To highlight the histological characteristics and autoimmune nature of PBC.
  • To discuss the impact of early diagnosis and treatment on patient outcomes.

Main Methods:

  • Review of histological findings in PBC, including chronic non-suppurative destructive cholangitis.
Keywords:
Anti-mitochondrial antibodyBezafibrateEpidemiology

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  • Identification of disease-specific autoantibodies, particularly antimitochondrial antibodies (AMAs).
  • Analysis of epidemiological data regarding PBC prevalence in different demographics.

    • Main Results:

    • PBC is histologically defined by the degeneration and necrosis of intrahepatic biliary epithelial cells and the disappearance of bile ducts.
    • The presence of AMAs and mononuclear cell infiltration are key diagnostic markers.
    • Early diagnosis via AMA detection and treatment with ursodeoxycholic acid have dramatically improved patient prognosis.

    Conclusions:

    • Early detection and treatment have transformed the clinical course of PBC.
    • Liver transplantation-free survival for PBC patients is now comparable to the general population.
    • PBC serves as a significant model for understanding autoimmune liver diseases.