The gut-brain axis is a fascinating field of research, which today forms the subject of multiple works. This topic was the subject of a special report in the second edition of La Revue des Microbiotes, published in 2015. The number of publications on the topic has since skyrocketed, and knowledge has widely advanced.
There has been an accumulation in proof of the existence of two-way interactions between the gut and the brain, and the crucial role played by gut microbiota in these exchanges. We therefore felt it was essential to devote a new issue to this field, in order to review the basic knowledge and in particular to have an overview of how the gut-brain axis and gut microbiota contribute to the response to stress and to brain development, and how they are involved in various pathologies such as autism, Parkinson’s disease, psychiatric disorders and irritable bowel syndrome.
The editorial board would like to thank Sylvie Rabot, Alexis Mosca and Pascal Derkinderen, for their contributions to the special report and Guillaume Fond and Julien Scanzi for having agreed to answer their questions.
The Revue des Microbiotes scientific committee.