Cited by 318Gastrointestinal motility and disordersGut microbiota and healthCongenital gastrointestinal and neural anomalies

Intestinal microbiota influence the early postnatal development of the enteric nervous system

Collins, J., Borojevic, R., Verdu, E. F., Huizinga, J. D., Ratcliffe, E. M.·2014·Neurogastroenterology & Motility

Abstract

BACKGROUND: Normal gastrointestinal function depends on an intact and coordinated enteric nervous system (ENS). While the ENS is formed during fetal life, plasticity persists in the postnatal period during which the gastrointestinal tract is colonized by bacteria. We tested the hypothesis that colonization of the bowel by intestinal microbiota influences the postnatal development of the ENS. METHODS: The development of the ENS was studied in whole mount preparations of duodenum, jejunum, and ileum of specific pathogen-free (SPF), germ-free (GF), and altered Schaedler flora (ASF) NIH Swiss mice at postnatal day 3 (P3). The frequency and amplitude of circular muscle contractions were measured in intestinal segments using spatiotemporal mapping of video recorded spontaneous contractile activity with and without exposure to lidocaine and N-nitro-L-arginine (NOLA). KEY RESULTS: Immunolabeling with antibodies to PGP9.5 revealed significant abnormalities in the myenteric plexi of GF jejunum and ileum, but not duodenum, characterized by a decrease in nerve density, a decrease in the number of neurons per ganglion, and an increase in the proportion of myenteric nitrergic neurons. Frequency of amplitude of muscle contractions were significantly decreased in the jejunum and ileum of GF mice and were unaffected by exposure to lidocaine, while NOLA enhanced contractile frequency in the GF jejunum and ileum. CONCLUSIONS & INFERENCES: These findings suggest that early exposure to intestinal bacteria is essential for the postnatal development of the ENS in the mid to distal small intestine. Future studies are needed to investigate the mechanisms by which enteric microbiota interact with the developing ENS.

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Crossref · 10.1111/nmo.12236

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Authors
Collins, J., Borojevic, R., Verdu, E. F., Huizinga, J. D., & Ratcliffe, E. M.
Affiliations
McMaster University (CA)
Corresponding author
Ratcliffe, E. M.
Venue
Neurogastroenterology & Motility
Publisher
Wiley
Published
2013-10-08
Volume
26
Issue
1
Pages
98-107
ISSN
  • 1350-1925 (ISSN-L)
  • 1365-2982
OpenAlex
W1976582565
Cited by
318
References
37
Citations by year
2026: 17 · 2025: 19 · 2024: 28 · 2023: 18 · 2022: 34 · 2021: 43 · 2020: 31 · 2019: 21 · 2018: 28 · 2017: 20 · 2016: 30 · 2015: 15 · 2014: 12 · 2013: 1 · 2012: 1
FWCI
18.23
Type
journal article
Language
en
Open access
closed
Locations
  • Neurogastroenterology & Motility (publishedVersion)
  • PubMed (publishedVersion)
Funders
McMaster University
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
Keywords
gut microbiota, enteric nervous system, postnatal development, germ-free mice, myenteric plexus, nitrergic neurons, intestinal motility, smooth muscle contraction, L-NNA, lidocaine, small intestine, gut-brain axis
MeSH terms
Animals, Animals, Newborn, Duodenum, Female, Gastrointestinal Motility, Ileum, Jejunum, Pregnancy, Enteric Nervous System, Mice, Microbiota

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