Development of the preterm infant gut microbiome: a research priority

Area of Science:

• Microbiology
• Neonatology
• Pediatric Gastroenterology

Background:

• Infants with very low birth weight (VLBW) are susceptible to gut microbiome dysbiosis due to physiological immaturity and environmental factors.
• The developmental trajectory of the gut microbiota in preterm infants remains poorly understood.
• The gut microbiome plays a crucial role in immune and gastrointestinal health, interacting with multiple host systems.

Purpose of the Study:

• To synthesize current knowledge on normal infant gut microbiome development.
• To contrast normal development with dysbiotic patterns observed in VLBW infants.
• To highlight the knowledge gap in prospective studies of VLBW infant gut microbiome development through early childhood.

Main Methods:

• This is a review synthesizing existing research.
• It contrasts normal gut microbial development with dysbiosis in VLBW infants.
• It emphasizes the role of human milk in microbial development.

Main Results:

• VLBW infants face significant risks of gut dysbiosis.
• Human milk is vital for healthy gut microbial development and immune function.
• The gut microbiome extensively influences infant physiology and metabolism.

Conclusions:

• There is a critical need for prospective studies mapping the VLBW infant gut microbiome.
• Understanding these microbial communities is essential for optimizing VLBW infant growth and development.
• Host-microbe interactions in the VLBW gut may contribute to long-term health sequelae.