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Gut Feeling

Published online by Cambridge University Press:  23 March 2020

C. Cotta*
Affiliation:
Centro Hospitalar Barreiro-Montijo, Psychiatry, Barreiro, Portugal
G. Jesus
Affiliation:
Centro Hospitalar Psiquiátrico de Lisboa, Psychiatry, Lisbon, Portugal
V. Vila Nova
Affiliation:
Centro Hospitalar Barreiro Montijo, Psychiatry, Barreiro, Portugal
C. Moreira
Affiliation:
Centro Hospitalar Psiquiátrico de Lisboa, Psychiatry, Lisbon, Portugal
*
* Corresponding author.

Abstract

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Introduction

There is growing evidence of the importance of nutrition in mental disorders. Gut microbiota, influenced by environmental factors such as diet and stress, has been proposed as one of the players on a dynamic called gut-brain axis, which is thought to have an influence on behaviour and mental health.

Objectives and aims

To summarize recent evidence on the topic, and its potential role in psychiatric interventions.

Methods

The authors review updated literature collected from online scientific databases.

Results

The development of the brain itself has been shown to be influenced by the gut microbiome. Research demonstrates that the composition of the microbiota has influence on behaviour through neuroendocrine and other neuroactive messengers production by the bacteria within the gut lumen. Studies in germ-free animals, animals exposed to bacterial infections, probiotic suplements or antibiotic drugs suggest a role for the gut microbiota in the regulation of anxiety, mood, cognition and pain. The gut microbiome has been implicated in brain disorders including anxiety and depression, multiple sclerosis, Alzheimer's disease, Parkinson's disease, and autism.

Conclusions

The treatment of mental disorders is usually based on pharmacological and psychotherapeutic interventions, and little attention is given to dietary interventions. The emerging field of research focused on the human microbiome suggests an important role for the gut microbiota in influencing brain development, behaviour and mood in humans, and points new strategies for developing novel therapeutics for mental disorders.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
EV875
Copyright
Copyright © European Psychiatric Association 2016
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