The gut-brain axis in irritable bowel syndrome and inflammatory bowel disease

Area of Science:

• Neurogastroenterology
• Microbiome research
• Psychiatry

Background:

• Emerging evidence highlights the gut-brain axis, a communication pathway between gut microbiota and the central nervous system (CNS).
• Early-life gut microbiome development is critical for immune function and can influence psychometric alterations, particularly in genetically susceptible individuals.
• Gastrointestinal (GI) disorders are increasingly linked to mental health conditions.

Purpose of the Study:

• To review the relationship between specific gut microbial genera and gastrointestinal disorders.
• To explore the connection between gut microbiota, anxiety, and depression.
• To examine the impact of therapeutic strategies for mood disorders on the gut microbiome.

Main Methods:

• Literature review of studies investigating the gut-brain axis.
• Analysis of research on microbial genera associated with GI disorders, anxiety, and depression.
• Examination of therapeutic interventions for mood disorders and their effects on gut microbiota composition.

Main Results:

• Specific microbial genera are associated with both GI disorders and mood disorders like anxiety and depression.
• Gut microbiota composition is altered in individuals with anxiety and depression.
• Therapeutic strategies for mood disorders can influence gut microbiota, suggesting a potential for microbiome-targeted treatments.

Conclusions:

• The gut microbiome plays a significant role in the gut-brain axis and central nervous system (CNS) disorders.
• Modulating the gut microbiota presents a promising therapeutic avenue for treating anxiety, depression, and other mood disorders.
• Early-life interventions targeting the gut microbiome may prevent or mitigate psychometric alterations.