The relationship between intestinal dysbiosis and multiple sclerosis

Multiple sclerosis is a chronic autoimmune disease, characterized by the appearance of demyelinating lesions with inflammatory character in the CNS. Given the unpredictable evolution of the disease, numerous attempts have been initiated to find some pathogenic factors and by default targeted treatment methods. The intestinal microbiota of these patients is often significantly altered compared to the healthy population and given the complex connections between the intestine and the central nervous system, the idea of causality between dysbiosis and this condition was launched. The intestinal mucosa represents the interface between the external environment and the organism, so that it is considered the starting point of some local immunological processes but with systemic resonance, especially neurological. The classic medication scheme widely used to treat MS nowadays can also affect the integrity of the intestinal mucosa by breaking the fine balance at this level. Data from recent studies around the subject open new treatment opportunities around preserving the intestinal microbiota and strategies like vitamin A intake and fat-soluble vitamin D supplementation, probiotic complexes or faecalis microbiota transplantation appear more promising and easier to apply in daily clinical practice.