Related Experiment Video
Updated: Jul 19, 2026

09:03
The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
Published on: February 3, 2012
Eosinophilic enteritis observed during alpha-interferon therapy for chronic hepatitis C
S Kakumitsu1, H Shijo, N Akiyoshi
1The Division of Gastroenterology, Fukuoka University Hospital, Japan.
Journal of Gastroenterology
|July 25, 2000
Summary
Recombinant interferon alpha-2b treatment for hepatitis C may trigger eosinophilic enteritis. This condition, characterized by abdominal pain and increased eosinophils, resolved with prednisolone treatment.
Area of Science:
- Gastroenterology
- Hepatology
- Immunology
Background:
- Chronic hepatitis C management often involves interferon therapy.
- Eosinophilic enteritis is a rare gastrointestinal disorder.
- Interferon therapy's potential side effects require ongoing investigation.
Observation:
- A patient with chronic hepatitis C developed severe abdominal pain, diarrhea, and elevated eosinophil counts during interferon alpha-2b treatment.
- Imaging revealed diffuse intestinal wall thickening, ascites with eosinophils, and mucosal edema in the small intestine.
- Symptoms and laboratory findings resolved after treatment with prednisolone.
Findings:
- The patient's condition, eosinophilic enteritis, was temporally associated with interferon alpha-2b administration.
- No other common causes for eosinophilic enteritis were identified.
- The case suggests a potential causal link between interferon alpha-2b and eosinophilic enteritis.
Implications:
- Interferon alpha-2b may be an underrecognized cause of eosinophilic enteritis.
- Clinicians should consider interferon-induced enteritis in patients presenting with relevant symptoms during therapy.
- Further research is warranted to elucidate the mechanism of interferon-induced eosinophilic enteritis.
Related Concept Videos
Hepatitis
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. The...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
Viral Hepatitis I: Introduction
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 of food...
Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
Chronic 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...

