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Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...

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Oral Gavage in Neonatal Mouse Pups and Functional Assessment of Gut Barrier Integrity Using Ussing Chambers
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Intestinal barrier function in neonatal foals: options for improvement.

Johannes C Vendrig1, Johanna Fink-Gremmels

  • 1Department of Veterinary Pharmacology, Pharmacotherapy and Toxicology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands. J.C.Vendrig@uu.nl

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Summary

Newborns have weak gut defenses, increasing infection risk. Specific milk oligosaccharides may act as Pattern Recognition Receptor (PRR) agonists to improve gut health and reduce inflammation.

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Area of Science:

  • Neonatal immunology
  • Gastrointestinal physiology
  • Microbiome research

Background:

  • Neonatal gastrointestinal defense is limited by immature barriers and immune systems.
  • This vulnerability increases susceptibility to inflammation, bacterial translocation, and sepsis during early gut colonization.
  • Pattern Recognition Receptors (PRRs) and cytokine regulation are crucial for gut homeostasis and barrier function.

Purpose of the Study:

  • To investigate the potential of milk oligosaccharides as selective Pattern Recognition Receptor (PRR) agonists.
  • To explore strategies for orchestrating beneficial gut colonization in neonates.
  • To reduce the risks of neonatal inflammation and pathogen invasion.

Main Methods:

  • Review of existing literature on neonatal gut immunity and PRR function.
  • Analysis of the composition and potential immunomodulatory effects of milk oligosaccharides.
  • Exploration of dietary formula applications.

Main Results:

  • Selective PRR agonists show promise in limiting inflammatory responses.
  • Milk and colostrum contain oligosaccharides with potential PRR agonist activity.
  • These compounds could modulate early gut colonization by commensal flora.

Conclusions:

  • Milk oligosaccharides represent a potential source for novel dietary formulas.
  • These formulas could enhance neonatal gut defense mechanisms.
  • Targeting PRRs with dietary components may mitigate risks of neonatal inflammatory diseases and infections.