Related Experiment Video
Updated: Jul 11, 2026
07:18
Oral Gavage in Neonatal Mouse Pups and Functional Assessment of Gut Barrier Integrity Using Ussing Chambers
Published on: January 9, 2026
Gastrointestinal maturation and implications for infant feeding
1Department of Pediatrics, Division of Neonatology, University of Florida, FL, USA. neuj@peds.ufl.edu
Early Human Development
|October 5, 2007
Summary
Infant gastrointestinal (GI) maturity determines nutritional support needs. Understanding GI tract development is key to optimizing enteral nutrition for premature infants and preventing disease.
Area of Science:
- Neonatal physiology
- Pediatric gastroenterology
- Nutritional science
Background:
- Infant gastrointestinal (GI) tract maturity is crucial for meeting nutritional requirements.
- The GI tract plays vital roles in digestion, absorption, endocrine, neural, and immunologic functions.
- Parenteral nutrition may be necessary if the GI tract is immature.
Purpose of the Study:
- To review the anatomic, functional, and biochemical development of the infant GI tract.
- To explore methods for optimizing enteral nutrition in premature infants.
- To discuss strategies for preventing disease through appropriate nutritional support.
Main Methods:
- Review of existing literature on infant GI development.
- Analysis of anatomical, functional, and biochemical maturation processes.
- Synthesis of information on enteral nutrition strategies for premature infants.
Main Results:
- GI tract maturity dictates the feasibility of enteral feeding.
- The GI tract has multifaceted roles beyond nutrient processing.
- Developmental insights inform nutritional support protocols.
Conclusions:
- Optimizing enteral nutrition requires understanding GI tract development in premature infants.
- Tailored nutritional strategies can enhance health and prevent disease.
- GI tract maturity is a critical factor in determining feeding modalities.
More Related Videos
Related Concept Videos
01:30Development 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...
01:23Anatomy of the Intestines
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large 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...
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...
01:28Development of the Oral Microbiota
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
01:23Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
01:15Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding
Enteral nutrition encompasses various methods of delivering nutrition directly to the gastrointestinal (GI) tract, bypassing traditional oral intake. It is particularly beneficial for patients who cannot eat by mouth but have a functioning digestive system. Key methods include nasointestinal feeding, gastrostomy, and jejunostomy, each suited to different clinical scenarios based on the patient's needs and condition.
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube through...
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube through...
01:22Gut-Brain Axis
The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such as...