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Updated: Nov 5, 2025

Murine Colitis Modeling using Dextran Sulfate Sodium DSS
Published on: January 19, 2010
Deoxyschizandrin treats mice with ulcerative colitis possibly via the TLR4/NF-κB signaling pathway
1Surgery of Traditional Chinese Medicine, Nanjing University of Traditional Chinese Medicine, The First Clinical Medical College Nanjing 210000, Jiangsu Province, China.
Objective:
This study aimed to investigate the effects and mechanisms of deoxyschizandrin (DSD) on treatment of ulcerative colitis (UC).
Methods:
The models of mice with UC were established through dextran sulfate sodium (DSS) administration, and the successful models were treated with DSD. The therapeutic effects of DSD on UC mice were evaluated and its behind mechanisms were analyzed.
Results:
After DSS induction, the mice showed increased body weight and colon length, worse disease activity index (DAI) and body inflammation, oxidative stress injury and increased apoptosis of colonic epithelial cells, which were remarkably relieved after DSD intervention. Besides, the levels of TLR4, MyD88 and NF-κB in the colon tissues were elevated in UC mouse models, while DSD treatment reduced the levels of these markers.
Conclusion:
DSD can alleviate the symptoms of mice with DSS-induced UC via inhibiting body inflammation, improving oxidative stress and reducing the apoptosis of colonic epithelial cells, which may be attributed to DSD inhibition of the TLR4/NF-κB signaling pathway.
Insights
Deoxyschizandrin (DSD) effectively treats ulcerative colitis (UC) in mice by reducing inflammation and cell damage. DSD works by inhibiting the TLR4/NF-κB signaling pathway, offering a potential new therapy for UC.
Area of Science:
- Pharmacology
- Gastroenterology
- Immunology
Background:
- Ulcerative colitis (UC) is a chronic inflammatory bowel disease with limited treatment options.
- Understanding the molecular mechanisms underlying UC is crucial for developing effective therapies.
Purpose of the Study:
- To investigate the therapeutic effects of deoxyschizandrin (DSD) on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in a mouse model.
- To elucidate the underlying mechanisms by which DSD exerts its protective effects in UC.
Main Methods:
- Establishment of UC mouse models using DSS administration.
- Treatment of UC mice with deoxyschizandrin (DSD).
- Evaluation of therapeutic efficacy through clinical observations and molecular analysis of colonic tissues.
Main Results:
- DSS-induced UC mice exhibited increased disease activity, inflammation, oxidative stress, and colonic epithelial cell apoptosis.
- DSD treatment significantly ameliorated these UC symptoms.
- DSD intervention reduced the elevated levels of TLR4, MyD88, and NF-κB in the colonic tissues of UC mice.
Conclusions:
- Deoxyschizandrin (DSD) demonstrates significant therapeutic potential for ulcerative colitis (UC).
- DSD alleviates UC symptoms by inhibiting inflammation, oxidative stress, and apoptosis.
- The protective effects of DSD are likely mediated through the inhibition of the TLR4/NF-κB signaling pathway.
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