Dextran Sulfate Sodium (DSS)-Induced Acute Colitis in the Rat

Area of Science:

• Gastroenterology
• Immunology
• Pharmacology

Background:

• Inflammatory bowel diseases (IBD) stem from complex interactions between genetic susceptibility, environmental factors, and immune responses to gut microbiota.
• Animal models are crucial for elucidating IBD pathophysiology and conducting preclinical pharmacological studies.
• The dextran sulfate sodium (DSS)-induced colitis model is widely adopted for its simplicity, cost-effectiveness, and relevance to human IBD.

Purpose of the Study:

• To present a validated, detailed laboratory protocol for inducing acute experimental colitis in Sprague-Dawley rats.
• To provide a reproducible method for researchers studying IBD mechanisms and evaluating potential therapeutics.

Main Methods:

• Induction of acute colitis in Sprague-Dawley rats utilizing a specific concentration of dextran sulfate sodium (DSS) in drinking water.
• Validated protocol includes detailed steps for administration, monitoring, and assessment of colitis severity.
• Focus on a standardized approach for consistent and reliable results.

Main Results:

• Successful induction of acute colitis characterized by specific clinical and histological features in Sprague-Dawley rats.
• The protocol demonstrated reproducibility and reliability in laboratory settings.
• The model effectively mimics key aspects of human IBD.

Conclusions:

• The presented DSS-induced acute colitis protocol in Sprague-Dawley rats is a robust and validated model.
• This standardized method facilitates further research into IBD pathogenesis and the development of novel treatments.
• The model's simplicity and cost-effectiveness make it accessible for various research groups.