Cited by 82Gut microbiota and healthTryptophan and brain disordersNeuroinflammation and Neurodegeneration Mechanisms

It takes guts to grow a brain: Increasing evidence of the important role of the intestinal microflora in neuro‐ and immune‐modulatory functions during development and adulthood

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Diamond, Betty, Huerta, Patricio T., Tracey, Kevin, Volpe, Bruce T.·2011·BioEssays

Abstract

A new study entitled “Normal gut microbiota modulates brain development and behavior”, published in the Proceedings of the National Academy of Sciences, requires that we reconsider the notion that the brain is an immune‐privileged site. The authors demonstrate that intestinal microbiota must be present within a set time‐frame for normal synaptogenesis to occur in the brain. In the absence of intestinal microbiota, histopathological and behavioral abnormalities arise. These observations necessitate a new look at the many interconnections of the immune system and the brain, suggesting new frontiers for research and new therapeutic strategies for neurodevelopmental diseases.

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  • Rodents lacking all gut bacteria from birth have memory deficits and behavioral abnormalities compared to animals with normal gut microbiota.

    “These studies show that rodents lacking all gut bacteria from birth (germ-free animals) have memory deficits28 and behavioral abnormalities29, 30 when compared to animals with normal gut microbiota.”
  • These cognitive deficits in rodents can be corrected through colonization of the intestine via a fecal transplant from the control group, but only if it occurs early in life.

    “Interestingly, these cognitive deficits in rodents can be corrected through the colonization of the intestine via a fecal transplant from the control group, but only if it occurs early in life.”
  • Developmental abnormalities found in germ-free mice are totally reversible by colonization with intestinal bacteria early in life but not in adulthood, suggesting that the microbiome influences brain development.

    “The developmental abnormalities found in GF mice are totally reversible by colonization with intestinal bacteria early in life but not in adulthood, suggesting that the microbiome influences brain development.9,10”

    From The Gut Microbiome and the Brain (2014) · cites this paper as [10]

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Authors
Diamond, B., Huerta, P. T., Tracey, K., & Volpe, B. T.
Affiliations
  • Northwell Health (US)
  • Cornell University (US)
Corresponding author
Diamond, Betty
Venue
BioEssays
Publisher
Wiley
Published
2011-06-16
Volume
33
Issue
8
Pages
588-591
ISSN
  • 0265-9247 (ISSN-L)
  • 1521-1878
OpenAlex
W1892012164
Cited by
69
References
31
Citations by year
2025: 1 · 2024: 12 · 2023: 5 · 2022: 5 · 2021: 2 · 2020: 6 · 2019: 3 · 2018: 5 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 7 · 2013: 5 · 2012: 7
FWCI
0.58
Type
journal article
Language
en
Open access
Locations
  • BioEssays (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM089807, R01GM057226)
  • National Institute of Allergy and Infectious Diseases (P01AI073693)
  • National Center for Research Resources (M01RR018535)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
gut microbiota, brain development, synaptogenesis, neurodevelopmental disorders, immune privilege, gut-brain axis, behavioral abnormalities, histopathology, microbiota depletion
MeSH terms
Animals, Behavior, Brain, Humans, Immunologic Factors, Intestines, Synaptic Transmission, Receptors, Immunologic, Synapses, Neuroimmunomodulation, Histocompatibility Antigens Class I, Cytokines, Long-Term Potentiation, Metagenome

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