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Overview
This article presents a protocol for using dextran sulfate sodium (DSS) to induce acute colitis in a murine model. The method includes the administration of DSS in drinking water and subsequent tissue preparation for analysis.
Key Study Components
Area of Science
- Neuroscience
- Colitis Research
- Murine Models
Background
- DSS is a well-established model for studying inflammatory bowel disease.
- The model allows for the examination of colonic tissue changes.
- Understanding colitis mechanisms can aid in developing treatments.
- This protocol standardizes the DSS treatment process.
Purpose of Study
- To demonstrate the method for inducing colitis in mice.
- To outline the tissue preparation for histological examination.
- To provide a visual guide for researchers.
Methods Used
- Mice are given 3% DSS in drinking water for four days.
- Weight, diarrhea, and fecal blood are monitored daily.
- After four days, DSS is replaced with autoclaved water.
- Colons are harvested after three days on water and prepared for analysis.
Main Results
- Colons are measured and weighed post-euthanasia.
- Tissue is processed into Swiss rolls or sausages for microscopy.
- The protocol allows for consistent results across experiments.
- Visual documentation aids in understanding the procedure.
Conclusions
- The DSS model is effective for studying acute colitis.
- Standardized methods enhance reproducibility in research.
- This protocol serves as a valuable resource for researchers.
What is DSS?
DSS stands for dextran sulfate sodium, a chemical used to induce colitis in animal models.
How long is the DSS treatment?
The treatment lasts for four days, followed by a recovery period on autoclaved water.
What are the signs of colitis in mice?
Signs include weight loss, diarrhea, and the presence of fecal blood.
What happens to the colons after harvesting?
Colons are measured, weighed, and prepared for microscopic examination.
Why is this protocol important?
It standardizes the method for inducing colitis, ensuring reproducibility in research.
Can this model be used for other studies?
Yes, it can be adapted for various studies related to inflammatory bowel disease.
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