Related Experiment Video
Updated: Aug 15, 2026

Oral Gavage in Neonatal Mouse Pups and Functional Assessment of Gut Barrier Integrity Using Ussing Chambers
Published on: January 9, 2026
The developing intestinal ecosystem: implications for the neonate
Ricardo A Caicedo1, Richard J Schanler, Nan Li
1Department of Pediatrics, University of Florida, College of Medicine, Gainesville, 32610, USA.
Insights
The infant gut microbiome is crucial for development and immunity. Understanding its interactions with diet, like human milk, is key to preventing intestinal and distal organ diseases.
Area of Science:
- Microbiology
- Immunology
- Neonatal Medicine
Background:
- Intestinal microbes are vital for host development, nutrition, and immunity.
- Neonate intestines, particularly in premature infants, are vulnerable to environmental changes.
- The intestinal ecosystem influences both local and systemic health.
Purpose of the Study:
- To highlight the importance of the intestinal ecosystem in neonates.
- To emphasize the role of luminal contents and host interactions.
- To underscore the implications for diseases affecting multiple organs.
Main Methods:
- Review of existing literature on neonatal gut microbiome.
- Analysis of host-microbe and host-diet interactions.
- Exploration of nutritional factors like human milk, prebiotics, and probiotics.
Main Results:
- Microbial interactions are essential for intestinal development and immune function.
- Premature infants are especially susceptible to disruptions in the gut environment.
- The gut microbiome's influence extends to organs beyond the intestine.
Conclusions:
- Understanding the neonatal intestinal ecosystem is critical for health.
- Interactions with human milk, prebiotics, and probiotics are key therapeutic targets.
- Further research is needed to elucidate mechanisms linking gut health to distal organ diseases.
Abstract:
Interactions of resident intestinal microbes with the luminal contents and the mucosal surface play important roles in normal intestinal development, nutrition, and innate and adaptive immunity. The neonate, especially the premature, who possesses a highly immunoreactive intestinal submucosa underlying a single layer of epithelial cells that are continuously exposed to the luminal environment, is highly susceptible to perturbations of the luminal environment. Understanding the interactions of the intestinal ecosystem with the host and luminal nutritional environment, especially in regard to human milk and pre- and probiotics, has major implications for the pathogenesis of diseases that affect not only the intestine but distal organs such as the lung and brain.
More Related Videos
08:50A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development
Published on: June 24, 2020
09:36Effect of Hyaluronic Acid 35 kDa on an In Vitro Model of Preterm Small Intestinal Injury and Healing Using Enteroid-Derived Monolayers
Published on: July 28, 2022
Related Concept Videos
Development of Human Microbiota
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the small...
Development of the Oral Microbiota
Introduction to the Human Microbiota
Microbiota of the Stomach and Small Intestine
Development of Immunocompetence
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...