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Published on: September 21, 2021
Gut microbiota in multiple sclerosis and animal models
Sean M Schumacher1, William J Doyle1, Kristina Hill1
1Department of Biological Sciences, Boise State University, ID, USA.
Abstract:
Multiple sclerosis (MS) is a chronic central nervous system (CNS) neurodegenerative and neuroinflammatory disease marked by a host immune reaction that targets and destroys the neuronal myelin sheath. MS and correlating animal disease models show comorbidities, including intestinal barrier disruption and alterations of the commensal microbiome. It is accepted that diet plays a crucial role in shaping the microbiota composition and overall gastrointestinal (GI) tract health, suggesting an interplay between nutrition and neuroinflammation via the gut-brain axis. Unfortunately, poor host health and diet lead to microbiota modifications that could lead to significant responses in the host, including inflammation and neurobehavioral changes. Beneficial microbial metabolites are essential for host homeostasis and inflammation control. This review will highlight the importance of the gut microbiota in the context of host inflammatory responses in MS and MS animal models. Additionally, microbial community restoration and how it affects MS and GI barrier integrity will be discussed.
Insights
Multiple sclerosis (MS) involves immune attacks on the central nervous system (CNS). This review explores how gut microbiota and diet influence MS, inflammation, and gut-brain axis health.
Area of Science:
- Neuroimmunology
- Gastroenterology
- Microbiology
Background:
- Multiple sclerosis (MS) is a chronic neuroinflammatory and neurodegenerative disease of the central nervous system (CNS).
- MS is associated with gut microbiome alterations and intestinal barrier dysfunction.
- The gut-brain axis links diet, gut health, and neuroinflammation.
Purpose of the Study:
- To review the role of gut microbiota in host inflammatory responses in MS.
- To discuss the impact of microbial community restoration on MS and gut barrier integrity.
Main Methods:
- Literature review focusing on gut microbiota, diet, and multiple sclerosis.
- Analysis of studies on host-microbe interactions and the gut-brain axis in MS models.
Main Results:
- Gut microbiota composition significantly influences inflammatory responses in MS.
- Dietary interventions can modulate the gut microbiome, impacting MS progression.
- Restoring microbial balance may improve gut barrier function and reduce neuroinflammation.
Conclusions:
- The gut microbiota is a critical factor in MS pathogenesis and progression.
- Targeting the gut microbiome offers potential therapeutic strategies for MS.
- Maintaining gut health is essential for managing neuroinflammation in MS.
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