The gut-brain vascular axis in neuroinflammation

Area of Science:

• Microbiome research
• Neuroscience
• Gastroenterology

Background:

• The gut microbiota is vital for immune, metabolic, and tissue homeostasis, extending its influence to the central nervous system.
• Microbial dysbiosis and a compromised gut barrier ('leaky gut') are implicated in inflammatory intestinal diseases and linked to metabolic, inflammatory, and neurodegenerative conditions.
• A novel vascular axis connecting the gut and brain has been recently identified.

Purpose of the Study:

• To explore the gut-brain axis in detail.
• To investigate the relationship between microbial dysbiosis, leaky gut, gut-brain vascular integrity, and neurodegenerative diseases.
• To summarize the association between microbial dysbiosis and the gut-brain vascular axis in the context of neurological disorders.

Main Methods:

• Literature review and synthesis of existing research on the gut-brain axis.
• Analysis of the connection between microbial dysbiosis, barrier function (gut and cerebral), and neurodegenerative diseases.
• Focus on the role of the vascular gut-brain axis.

Main Results:

• Microbial dysbiosis is strongly associated with the impairment of the vascular gut-brain axis.
• This impairment is linked to the development and progression of neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease, major depressive disorder, and anxiety disorders.
• The gut-brain axis represents a critical pathway influencing neurological health.

Conclusions:

• Understanding the interplay between disease pathophysiology, mucosal barrier function, and host-microbe interactions is crucial.
• The microbiome holds potential as a biomarker for various health and disease states.
• Targeting the microbiome offers promising therapeutic and nutritional strategies for neurological and other diseases.