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Prebiotic oligosaccharides in premature infants
Mark A Underwood1, Karen M Kalanetra, Nicholas A Bokulich
1*Department of Pediatrics †Department of Viticulture and Enology ‡Department of Food Science and Technology §Department of Chemistry, University of California, Davis.
Journal of Pediatric Gastroenterology and Nutrition
|October 19, 2013
Summary
Prebiotic oligosaccharides and an all-human diet did not significantly increase bifidobacteria in premature infants. The interventions led to increased Clostridia and γ-Proteobacteria, with no significant changes in microbial diversity.
Area of Science:
- Neonatal nutrition
- Microbiome research
- Gastroenterology
Background:
- Premature infants often have dysbiotic gut microbiota.
- Prebiotics are explored to modulate infant gut microbiota.
- Human milk oligosaccharides (HMOs) and galacto-oligosaccharides (GOS) are common prebiotics.
Purpose of the Study:
- To assess the impact of increasing doses of GOS and HMOs on the gut microbiota of premature infants.
- To compare the effects of formula-based prebiotics versus human milk-based interventions.
Main Methods:
- Randomized controlled trial involving premature infants fed formula or mother's own milk.
- Interventions included galacto-oligosaccharide (GOS), human milk oligosaccharides (HMO), and human milk (H).
- Stool samples analyzed using terminal restriction fragment length polymorphism and qPCR for bacterial composition.
Main Results:
- No significant increase in bifidobacteria or lactobacilli observed across all groups.
- Increased Clostridia observed with increasing doses of GOS and HMOs in formula-fed infants.
- Trend towards increased γ-Proteobacteria in HMO and human milk groups compared to bovine fortifier.
Conclusions:
- Prebiotic interventions did not significantly enhance bifidobacteria levels in this cohort.
- High antibiotic use in the human milk group may have confounded results.
- Further research needed to optimize prebiotic strategies for premature infant gut health.
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