A CBD cream applied to the skin reduced paralysis and brain inflammation in mice with MS-like disease
Daily topical application of 1% CBD cream reduced disease severity from a mean score of 5.0 to 1.5, recovered hind limb paralysis, and decreased brain inflammation in a mouse MS model.
Quick Facts
What This Study Found
Researchers tested a topical 1% CBD cream formulation in mice with experimental autoimmune encephalomyelitis (EAE), the standard animal model for multiple sclerosis. When applied daily after disease onset, the CBD cream produced striking results.
Clinical disease scores dropped from a mean of 5.0 in untreated EAE mice to 1.5 in CBD-treated mice. The cream recovered hind limb paralysis and reduced the histological hallmarks of MS: lymphocyte infiltration and demyelination in spinal cord tissue.
At the molecular level, CBD cream reduced inflammatory immune cell markers (CD4 and CD8 T cells in the spleen), pro-inflammatory cytokines, markers of oxidative injury (nitrotyrosine, iNOS), and markers of programmed cell death (cleaved caspase 3). The effects were described as "surprisingly" robust for a topical application.
Key Numbers
Clinical score: 5.0 (EAE) vs. 1.5 (EAE + CBD cream). CD4 T cells: ~10.69% positive staining. CD8 T cells: ~35.96% positive staining (both in EAE). Reduced: pro-inflammatory cytokines, p-selectin, GFAP, oxidative markers, apoptosis markers.
How They Did This
Controlled animal study using C57BL/6 mice with MOG-induced EAE. Daily topical 1% CBD cream (CBD dissolved in propylene glycol and basic O/A cream) applied after symptom onset. Multiple experimental groups including naive, EAE, EAE+CBD cream, and vehicle controls. Assessed by daily clinical scoring, histological evaluation, immunohistochemistry, and western blotting at day 28.
Why This Research Matters
Topical application is appealing because it avoids many systemic side effects. If CBD cream can reduce neuroinflammation when applied to the skin, it could offer MS patients a simple, well-tolerated add-on treatment to current therapies.
The Bigger Picture
Topical CBD has become a massive consumer market, but scientific evidence for meaningful therapeutic effects through skin application has been limited. This study provides some of the strongest preclinical evidence that topical CBD can produce systemic anti-inflammatory effects, though the mechanism of absorption from skin to brain remains unclear.
What This Study Doesn't Tell Us
Mouse model of MS does not fully replicate human disease. The mechanism by which topical application reaches the central nervous system is not explained. Single CBD concentration tested. No comparison to oral CBD administration. Results have not been replicated in humans.
Questions This Raises
- ?How does topical CBD reach the central nervous system to produce these effects?
- ?Would human skin absorption be sufficient for therapeutic concentrations?
- ?Could this approach complement existing MS treatments?
Trust & Context
- Key Stat:
- Disease score dropped from 5.0 to 1.5 with topical CBD cream
- Evidence Grade:
- Controlled animal study with comprehensive molecular analysis. No human data for topical CBD in MS.
- Study Age:
- Published in 2015. Topical CBD research has expanded but human MS trials remain limited.
- Original Title:
- A new formulation of cannabidiol in cream shows therapeutic effects in a mouse model of experimental autoimmune encephalomyelitis.
- Published In:
- Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences, 23, 48 (2015)
- Authors:
- Giacoppo, Sabrina(2), Galuppo, Maria(2), Pollastro, Federica(2), Grassi, Gianpaolo, Bramanti, Placido, Mazzon, Emanuela
- Database ID:
- RTHC-00964
Evidence Hierarchy
Tests effects in animals (usually mice or rats), not humans.
What do these levels mean? →Frequently Asked Questions
Does CBD cream work for MS?
In this mouse study, daily topical 1% CBD cream dramatically reduced disease severity, recovered paralysis, and decreased brain inflammation. Whether this translates to human MS has not been tested in clinical trials.
How could a skin cream affect the brain?
This is an open question. The study demonstrated clear central nervous system effects from topical application, but the mechanism by which CBD reaches the brain through the skin was not fully explained.
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Cite This Study
https://rethinkthc.com/research/RTHC-00964APA
Giacoppo, Sabrina; Galuppo, Maria; Pollastro, Federica; Grassi, Gianpaolo; Bramanti, Placido; Mazzon, Emanuela. (2015). A new formulation of cannabidiol in cream shows therapeutic effects in a mouse model of experimental autoimmune encephalomyelitis.. Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences, 23, 48. https://doi.org/10.1186/s40199-015-0131-8
MLA
Giacoppo, Sabrina, et al. "A new formulation of cannabidiol in cream shows therapeutic effects in a mouse model of experimental autoimmune encephalomyelitis.." Daru : journal of Faculty of Pharmacy, 2015. https://doi.org/10.1186/s40199-015-0131-8
RethinkTHC
RethinkTHC Research Database. "A new formulation of cannabidiol in cream shows therapeutic ..." RTHC-00964. Retrieved from https://rethinkthc.com/research/giacoppo-2015-a-new-formulation-of
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.