Cited by 1,068Probiotics and Fermented FoodsGut microbiota and healthGastrointestinal motility and disorders

Psychobiotics and the manipulation of bacteria–gut–brain signals

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Sarkar, Amar, Lehto, Soili M., Harty, Siobhán, Dinan, Timothy G., Cryan, John F., Burnet, Philip W.J.·2016·Trends in Neurosciences

Abstract

Psychobiotics were previously defined as live bacteria (probiotics) which, when ingested, confer mental health benefits through interactions with commensal gut bacteria. We expand this definition to encompass prebiotics, which enhance the growth of beneficial gut bacteria. We review probiotic and prebiotic effects on emotional, cognitive, systemic, and neural variables relevant to health and disease. We discuss gut-brain signalling mechanisms enabling psychobiotic effects, such as metabolite production. Overall, knowledge of how the microbiome responds to exogenous influence remains limited. We tabulate several important research questions and issues, exploration of which will generate both mechanistic insights and facilitate future psychobiotic development. We suggest the definition of psychobiotics be expanded beyond probiotics and prebiotics to include other means of influencing the microbiome.

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Crossref · 10.1016/j.tins.2016.09.002

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  • Several studies in animal models have shown therapeutic effects of probiotic LAB strains on cognitive processes and a reduction in psychophysiological markers of anxiety and depression.

    “Several studies in animal models have unfolded the therapeutic effect associated to the administration of probiotic LAB strains upon cognitive processes and a reduction in psychophysiological markers of anxiety and depression [237].”

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Authors
Sarkar, A., Lehto, S. M., Harty, S., Dinan, T. G., Cryan, J. F., & Burnet, P. W. J.
Affiliations
  • University of Oxford (GB)
  • University of Eastern Finland (FI)
  • University College Cork (IE)
Corresponding author
Burnet, Philip W.J.
Venue
Trends in Neurosciences
Publisher
Elsevier BV
Published
2016-11
Volume
39
Issue
11
Pages
763-781
ISSN
0166-2236 (ISSN-L)
OpenAlex
W2542814600
Cited by
1,068
References
160
Citations by year
2026: 86 · 2025: 121 · 2024: 160 · 2023: 132 · 2022: 166 · 2021: 132 · 2020: 100 · 2019: 83 · 2018: 60 · 2017: 27
FWCI
6.49
Type
journal article
Language
en
Open access
Locations
  • Trends in Neurosciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Health Research Board (HRAPOR-2-14-647, HRA_POR/2011/23, HRA_POR/2012/32)
  • European Commission (613979, MYNEWGUT FP7-KBBE-2013-7)
  • Science Foundation Ireland
  • University College Cork
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
psychobiotics, probiotics, prebiotics, gut microbiota, gut-brain axis, gut-brain signaling, gut commensal bacteria, microbial metabolites, mental health, cognitive function, systemic effects, microbiome manipulation
MeSH terms
Animals, Brain, Emotions, Humans, Probiotics, Gastrointestinal Tract, Prebiotics, Microbiota

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