The Gut Microbiome in Adult Multiple Sclerosis

This study aims to assess the following research questions: 1. Map and benchmark the gut microbiome of patients with RRMS, and PPMS versus matched healthy controls 2. Determine whether RRMS or PPMS have a unique bias for a gut microbiome classification recently characterized. 3. Search for relationship with inflammation, amino acid plasma levels, heart rate variability (vagus nerve tone) and hair cortisol as a biological marker of chronic stress 4. Determine whether the gut microbiome is different in MS patients during a relapse. 5. Determine whether the gut microbiome remains stable after 3 months