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Early infant feeding and micro-ecology of the gut
R Zetterström1, R Bennet, K E Nord
1Department of Paediatrics, Karolinska Institute, Stockholm, Sweden.
Insights
Newborn gut bacteria colonization is influenced by various factors. Minimizing ecological disturbances in neonatal intensive care units involves using breast milk and judicious antimicrobial therapy.
Area of Science:
- Microbiology
- Neonatal care
- Gut microbiome research
Background:
- Newborn infants rapidly acquire diverse aerobic and anaerobic gut bacteria.
- Infant and environmental factors significantly shape intestinal microflora composition.
- Antimicrobial agents can cause major ecological disturbances in the infant gut.
Purpose of the Study:
- To understand factors influencing neonatal gut microflora.
- To identify strategies for minimizing antibiotic-induced dysbiosis in neonates.
Main Methods:
- Observational analysis of factors affecting infant gut microbiome.
- Review of antimicrobial therapy impact in neonatal intensive care units.
Main Results:
- Initial colonization involves a near 50/50 mix of aerobic and anaerobic bacteria.
- Antimicrobial treatment leads to significant ecological disturbances.
- Breast milk and restricted antibiotic use can mitigate these disturbances.
Conclusions:
- Optimizing neonatal gut health requires consideration of colonization dynamics.
- Judicious antimicrobial use and nutritional support (breast milk) are key for minimizing gut dysbiosis in high-risk infants.
Abstract:
Newborn infants are rapidly colonized by both aerobic and and anaerobic bacteria, initially with about 50% of each type. Several factors related both to the infant and its environment influence the composition of the intestinal microflora quantitatively as well as qualitatively. Major ecological disturbances are observed in newborn infants treated with antimicrobial agents. One way of minimizing the ecological disturbances, which may be seen in infants treated in neonatal intensive care units, is to provide them with fresh breast milk from their mothers and to use antimicrobial therapy only under strict clinical indications.