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Gut microbiota

Intestinal bacteria influence brain activity in healthy humans

Emerging evidence indicates that the intestinal microbiota influence brain chemistry, development and behaviour in animals. Tillisch and colleagues now show that ingestion of selected probiotics changes brain connectivity and responses to emotional challenge in healthy humans, paving the way for therapeutic exploitation of the microbiome–brain axis for functional gastrointestinal and primary behavioural disorders.

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Figure 1: Intestinal bacteria influence brain activity in healthy humans.

References

  1. Tillisch, K. et al. Consumption of fermented milk product with probiotic modulates brain activity. Gastroenterology http://dx.doi.org/10.1053/j.gastro.2013.02.043.

  2. Bercik, P. et al. The intestinal microbiota affect central levels of brain-derived neurotropic factor and behavior in mice. Gastroenterology 141, 599–609 (2011).

    Article  CAS  Google Scholar 

  3. Collins, S.M., Surette, M. & Bercik, P. The interplay between the intestinal microbiota and the brain. Nat. Rev. Microbiol. 10, 735–742 (2012).

    Article  CAS  Google Scholar 

  4. Cryan, J.F. & Dinan, T. G. Mind-altering microorganisms: the impact of the gut microbiota on brain and behaviour. Nat. Rev. Neurosci. 13, 701–712 (2012).

    Article  CAS  Google Scholar 

  5. McNulty, N.P. et al. The impact of a consortium of fermented milk strains on the gut microbiome of gnotobiotic mice and monozygotic twins. Sci. Transl. Med. 3, 106ra106 (2011).

    Article  Google Scholar 

  6. Van Oudenhove, L. et al. Fatty acid-induced gut-brain signaling attenuates neural and behavioral effects of sad emotion in humans. J. Clin. Invest. 121, 3094–3099 (2011).

    Article  CAS  Google Scholar 

  7. Schreiber, J. et al. Neurologic considerations in propionic acidemia. Mol. Genet. Metab. 105, 10–15 (2012).

    Article  CAS  Google Scholar 

  8. Moayyedi, P. et al. The efficacy of probiotics in the treatment of irritable bowel syndrome: a systematic review. Gut 59, 325–332 (2010).

    Article  CAS  Google Scholar 

  9. Foster, J.A. & McVey Neufeld, K. A. Gut–brain axis: how the microbiome influences anxiety and depression. Trends Neurosci. http://dx.doi.org/10.1016/j.tins.2013.01.005.

  10. Louis, P. Does the human gut microbiota contribute to the etiology of autism spectrum disorders? Dig. Dis. Sci. 57, 1987–1989 (2012).

    Article  Google Scholar 

Download references

Acknowledgements

The authors are supported by grants from the Canadian Institutes of Health Research and by a grant in aid from the Nestlé Research Center.

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Correspondence to Stephen M. Collins.

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The authors have received a grant for research support from the Nestlé Research Center, Nestlé, Switzerland.

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Collins, S., Bercik, P. Intestinal bacteria influence brain activity in healthy humans. Nat Rev Gastroenterol Hepatol 10, 326–327 (2013). https://doi.org/10.1038/nrgastro.2013.76

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