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Updated: Jun 21, 2026

Modeling Multiple Sclerosis in the Two Sexes: MOG35-55-Induced Experimental Autoimmune Encephalomyelitis
Published on: October 13, 2023
Estrogen and testosterone therapies in multiple sclerosis.
Stefan M Gold1, Rhonda R Voskuhl
1Department of Neurology, Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
Sex hormones like testosterone and estriol show promise for treating multiple sclerosis (MS). Research indicates these hormones offer anti-inflammatory and neuroprotective benefits, with early clinical studies yielding encouraging results for MS patients.
Area of Science:
- Neuroimmunology
- Endocrinology
Background:
- Females exhibit higher susceptibility to autoimmune diseases such as multiple sclerosis (MS), rheumatoid arthritis, and psoriasis.
- Clinical observations in MS patients show disease improvement during pregnancy and postpartum exacerbation, suggesting a role for sex hormones.
Purpose of the Study:
- To review preclinical and clinical evidence for the therapeutic use of testosterone and estriol in treating MS.
- To explore the potential mechanisms of action for sex hormone-based therapies in MS.
Main Methods:
- Review of existing scientific literature on sex hormones and experimental autoimmune encephalomyelitis (EAE) in animal models.
- Analysis of findings from pilot studies involving transdermal testosterone in male MS patients and oral estriol in female MS patients.
Main Results:
- Preclinical studies using the EAE model support therapeutic effects of testosterone and estriol.
- Both hormones demonstrate anti-inflammatory and neuroprotective properties in experimental models.
- Pilot clinical studies in MS patients show encouraging preliminary results.
Conclusions:
- Testosterone and estriol represent potential therapeutic agents for multiple sclerosis.
- Further research into sex hormone-based treatments for MS is warranted based on preclinical and early clinical data.
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