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Updated: Jul 29, 2025
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Intracerebroventricular Delivery of Gut-Derived Microbial Metabolites in Freely Moving Mice
Published on: June 2, 2022
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Gut-brain axis: altered microbiome and depression - review.
Anmol Mohan1, Swathi Godugu2, Saumya S Joshi3
1Department of Medicine, Karachi Medical & Dental College, Karachi, Pakistan.
Annals of Medicine and Surgery (2012)
|May 25, 2023
Summary
The gut-brain axis influences mental health and cognitive functions. Gut microbiota modulation, particularly with probiotics, shows promise in reducing major depressive disorder symptoms.
Area of Science:
- Neuroscience
- Microbiology
- Psychiatry
Background:
- The gut-brain axis describes bidirectional communication between the central nervous system and the gastrointestinal tract.
- This interaction influences emotions, cognition, mood, and gut homeostasis.
- Gut microbiota dysbiosis is linked to psychiatric conditions like major depressive disorder.
Purpose of the Study:
- To explore the role of the gut-brain axis in maintaining brain health.
- To investigate the therapeutic potential of modulating gut microbiota for psychiatric disorders.
- To compare the efficacy of probiotics, prebiotics, and postbiotics in managing depression.
Main Methods:
- Utilized germ-free mice in a forced swimming test to assess the impact of gut microbiota absence.
- Examined the effects of probiotics, prebiotics, and postbiotics on depression symptoms.
Main Results:
- Germ-free mice exhibited shorter immobility durations compared to healthy controls, indicating altered depressive behavior.
- Probiotics demonstrated more significant effects in reducing depression symptoms than prebiotics and postbiotics.
Conclusions:
- Gut microbiota plays a crucial role in brain health and mental well-being.
- Targeting the gut microbiota with probiotics offers a promising therapeutic strategy for major depressive disorder.
- Further research into specific microbiota is warranted to optimize probiotic, prebiotic, and postbiotic interventions.
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