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Related Concept Videos

Acute Pancreatitis I: Introduction01:27

Acute Pancreatitis I: Introduction

1.5K
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.
The causes of acute pancreatitis include:
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Chronic Pancreatitis I: Introduction01:24

Chronic Pancreatitis I: Introduction

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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...
906
Acute Pancreatitis I: Introduction01:25

Acute Pancreatitis I: Introduction

24
Acute pancreatitis is the sudden inflammation of the pancreas caused by the early activation of digestive enzymes, leading to the autodigestion of pancreatic tissue. This results in local inflammation and, in severe cases, systemic complications.EtiologyUnderstanding the underlying causes is crucial, as identifying the etiology guides treatment and anticipates complications. Acute pancreatitis can be triggered by various factors, typically grouped into the following clinical categories.Biliary...
24
Acute Pancreatitis II: Pathophysiology01:21

Acute Pancreatitis II: Pathophysiology

46
The pathophysiology of acute pancreatitis centers on injury to pancreatic acinar cells, which initiates a cascade of harmful intracellular events.This injury leads to premature activation of trypsinogen to trypsin in the pancreas. Trypsin then activates other digestive enzymes, such as chymotrypsin, elastase, and phospholipase A2, which begin breaking down pancreatic tissue. The resulting autodigestion causes local inflammation, tissue swelling, hemorrhage, and fat necrosis.Injured acinar cells...
46
Chronic Pancreatitis I: Introduction01:25

Chronic Pancreatitis I: Introduction

26
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%...
26
Chronic Pancreatitis II: Pathophysiology01:21

Chronic Pancreatitis II: Pathophysiology

30
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...
30

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Sodium Taurocholate Induced Severe Acute Pancreatitis in C57BL/6 Mice
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Chronic pancreatitis: genetics and pathogenesis.

Jian-Min Chen1, Claude Férec

  • 1Institut National de la Santé et de la Recherche Médicale (INSERM), U613, Brest, France. Jian-Min.Chen@univ-brest.fr

Annual Review of Genomics and Human Genetics
|May 21, 2009
PubMed
Summary
This summary is machine-generated.

Genetic research reveals that early trypsin activation, influenced by PRSS1, SPINK1, CTRC, CFTR, and CASR gene variants, is key to chronic pancreatitis (CP) development. Gene and environmental interactions are also crucial.

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Area of Science:

  • Gastroenterology
  • Genetics
  • Pancreatic Diseases

Background:

  • Chronic pancreatitis (CP) is a persistent inflammatory pancreatic disease.
  • Recent genetic studies have significantly advanced understanding of CP pathogenesis.
  • Genetic factors play a critical role in hereditary, familial, and idiopathic CP.

Purpose of the Study:

  • To review recent genetic discoveries in chronic pancreatitis.
  • To highlight the role of gene-gene and gene-environment interactions in CP.
  • To discuss future directions in identifying genetic susceptibility factors for CP.

Main Methods:

  • Review of genetic studies on chronic pancreatitis over the past 12 years.
  • Analysis of mutations in key genes including PRSS1, SPINK1, CTRC, CFTR, and CASR.
  • Examination of gene-gene and gene-environment interactions.

Main Results:

  • Gain-of-function mutations in PRSS1 and loss-of-function variants in SPINK1 and CTRC confirm premature trypsin activation's role in CP.
  • Loss-of-function variants in CFTR and CASR also increase CP risk.
  • Gene-gene and gene-environment interactions are important contributors to CP etiology.

Conclusions:

  • Genetic factors, particularly those affecting trypsin activation and CFTR/CASR function, are central to CP pathogenesis.
  • Understanding gene-environment interactions is vital for a comprehensive view of CP.
  • Further research is needed to identify novel genetic factors influencing CP susceptibility and resistance.