Intestinal Permeability in Preterm Infants by Feeding Type: Mother's Milk Versus Formula

Abstract

Background and Objective: Intestinal permeability in preterm infants represents a critical balance between absorption of nutritional agents and protection from dangerous pathogens. This study identified the relationship between feeding type (human milk and formula) and intestinal permeability as measured by lactulose to mannitol ratio in preterm infants in the first postnatal month. Study Design: Sixty-two preterm (≤32 weeks of gestation) infants had assessment of feeding type and evaluation with enteral lactulose and mannitol administration and urinary measurement at three time points in the first postnatal month. Results: Infants who received the majority of feeding as human milk (>75%) demonstrated significantly lower intestinal permeability when compared to infants receiving minimal or no human milk (75% of enteral feeding as mother's milk demonstrated a 3.8-fold lower composite median ratio when compared to infants receiving Conclusion: Preterm infant intestinal permeability was significantly decreased for those receiving human milk versus formula in a dose-related manner in the first postnatal month.