The Microbiome, Gut-Brain-Axis, and Implications for Brain Health.

Area of Science:

• Neuroscience
• Microbiology
• Gastroenterology

Background:

• Historical Cartesian dualism separated mind and body, hindering understanding of brain-body interconnectedness.
• Homeostasis in the brain is intrinsically linked to the body, a connection often overlooked by researchers and clinicians.
• Emerging research highlights the gut's role in mental health dysfunction via inflammation and the autonomic nervous system (ANS).

Purpose of the Study:

• To emphasize the critical role of the gut microbiome in brain function and mental processes.
• To inform researchers and clinicians about the interconnectedness of the organism, particularly the gut-brain axis.
• To encourage a holistic approach to treating mental disorders by considering gut health.

Main Methods:

• Review of existing literature on the microbiome, gut-brain axis, and mental health.
• Synthesis of findings linking gut inflammation and ANS dysfunction to mental system disorders.
• Conceptual framing of the microbiome's influence on higher cognitive functions.

Main Results:

• The gut microbiome plays a central role in influencing complex human thought and behavior.
• Gut inflammation and ANS dysfunction are implicated in the pathology of mental disorders.
• The interconnectedness of the gut and brain is fundamental to overall organismal health.

Conclusions:

• Mental disorders may often be linked to or co-occur with gut disorders.
• A comprehensive understanding of the gut microbiome is essential for advancing mental health treatments.
• Future research should further explore the gut-brain axis for therapeutic interventions.