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Updated: Jun 25, 2026

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Non-invasive Assessment of the Efficacy of New Therapeutics for Intestinal Pathologies Using Serial Endoscopic Imaging of Live Mice
Published on: March 10, 2015
Ulcerative colitis in AKR mice is attenuated by intraperitoneally administered anandamide
M A Engel1, C A Kellermann, T Rau
1First Department of Medicine, University of Erlangen-Nuremberg, Germany. Matthias.Engel@uk-erlangen.de
Summary
The endogenous cannabinoid anandamide (N-arachidonylethanolamine) effectively reduced experimental colitis in mice. This suggests cannabinoid compounds may offer therapeutic potential for inflammatory bowel disease (IBD) treatment.
Area of Science:
- Immunology
- Pharmacology
- Gastroenterology
Background:
- Endocannabinoids and synthetic cannabinoids exhibit anti-inflammatory and anti-nociceptive effects.
- Anandamide (N-arachidonylethanolamine) is an endogenous cannabinoid with potential therapeutic applications.
Purpose of the Study:
- To investigate the effects of anandamide on experimental colitis induced by TNBS (2,4,6-trinitrobenzene sulfonic acid).
- To evaluate the therapeutic potential of anandamide in treating inflammatory bowel disease (IBD).
Main Methods:
- Experimental colitis was induced in AKR mice using TNBS.
- Anandamide was administered intraperitoneally.
- Clinical and macroscopic changes were assessed using scoring systems.
- Pro-inflammatory cytokine mRNA expression was measured.
Main Results:
- Intraperitoneal administration of anandamide significantly attenuated experimental colitis.
- Anandamide reduced colitis severity based on macroscopic and histological scoring.
- Pro-inflammatory cytokine mRNA expression was significantly decreased by anandamide treatment.
Conclusions:
- Systemically administered anandamide effectively reduces TNBS-induced colitis in mice.
- Systemically active cannabinoid compounds demonstrate therapeutic potential for managing IBD.
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