Related Experiment Video
Updated: Jul 10, 2026
08:56
Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
Published on: February 10, 2015
Sclerosing cholangitis epidemiology and etiology
1Center for Basic Research in Digestive Diseases, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA. lazaridis.konstantinos@mayo.edu
Summary
Sclerosing cholangitis encompasses primary and secondary forms. While primary sclerosing cholangitis epidemiology is studied, its cause remains unknown, and secondary sclerosing cholangitis, though caused by known factors, is difficult to research epidemiologically.
Area of Science:
- Hepatology and Gastroenterology
- Biliary Medicine
- Epidemiology of Liver Diseases
Background:
- Sclerosing cholangitis is a group of chronic biliary diseases.
- These diseases are classified as primary (unknown cause) or secondary (known cause).
- Existing research has focused on the epidemiology of primary sclerosing cholangitis, but its etiology is still unclear.
Purpose of the Study:
- To differentiate the epidemiological and etiological characteristics of primary and secondary sclerosing cholangitis.
- To highlight the challenges in studying the epidemiology of secondary sclerosing cholangitis.
Main Methods:
- Review of existing epidemiological data for primary sclerosing cholangitis.
- Analysis of etiological factors for secondary sclerosing cholangitis.
- Discussion of methodological challenges in studying secondary sclerosing cholangitis epidemiology.
Main Results:
- The epidemiology of primary sclerosing cholangitis has been assessed, yet its etiology remains elusive.
- The etiology of secondary sclerosing cholangitis is understood, but its epidemiological study is complex.
Conclusions:
- Primary sclerosing cholangitis etiology requires further investigation.
- Studying the epidemiology of secondary sclerosing cholangitis presents significant challenges.
Related Concept Videos
01:20Cholecystitis
Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
01:21Chronic Pancreatitis II: Pathophysiology
Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...
01:23Cirrhosis 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...
01:24Cirrhosis 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...
01:24Chronic Pancreatitis I: Introduction
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...
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...
01:25Chronic Pancreatitis I: Introduction
Chronic pancreatitis is a long-standing, relapsing inflammation of the pancreas, characterized by irreversible damage to the gland. It results in progressive destruction of the pancreatic parenchyma, fibrosis, and eventual loss of both exocrine and endocrine function. The disease may evolve gradually after multiple episodes of acute pancreatitis or develop independently.EtiologyChronic pancreatitis can arise from a variety of causes:Alcohol use is the leading cause, accounting for 70–80% of...