Related Experiment Video
Updated: May 8, 2026

Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
Probiotic supplementation in mothers of very low birth weight infants
Shira Benor1, Ronella Marom2, Amir Ben Tov
1Department of Pediatrics, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Insights
Maternal probiotic supplementation may reduce necrotizing enterocolitis (NEC) in preterm infants. This study found lower NEC rates in infants whose mothers received oral probiotics postpartum.
Area of Science:
- Neonatal Medicine
- Microbiology
- Gastroenterology
Background:
- Necrotizing enterocolitis (NEC) poses a significant risk to preterm infants.
- Concerns regarding the safety and purity of direct probiotic administration to infants exist.
- Maternal probiotic supplementation offers a potential alternative to protect vulnerable infants.
Purpose of the Study:
- To evaluate the efficacy of maternal oral probiotic supplementation in reducing NEC incidence in very low birth weight (VLBW) infants.
- To assess the impact on infant sepsis and mortality rates.
- To explore a safer method for probiotic delivery to preterm infants via maternal breast milk.
Main Methods:
- A prospective, randomized, double-blind, placebo-controlled trial was conducted.
- Mothers of VLBW infants received either Lactobacillus acidophilus and Bifidobacteria lactis or a placebo postpartum.
- Infants were exclusively fed maternal breast milk.
Main Results:
- The incidence of Bell stage II to III NEC was 4% in the probiotic group versus 18.2% in the placebo group (p=0.12).
- While not statistically significant, a trend towards reduced NEC was observed with maternal probiotic use.
- Sepsis and mortality rates were comparable between the groups.
Conclusions:
- Postpartum maternal oral probiotic supplementation shows a potential to decrease NEC incidence in breastfed VLBW infants.
- This approach may mitigate safety concerns associated with direct infant probiotic administration.
- Further research is warranted to confirm these findings and optimize probiotic interventions.
Objective:
Oral probiotic supplementation reduces the risk of necrotizing enterocolitis (NEC) in preterm infants. Concerns about safety and purity of probiotic preparations have limited their use in preterm infants. The authors administered probiotic bacteria to mothers of preterm infants, thereby avoiding the risks of direct exposure of infants to probiotic bacteria.
Design:
This prospective, randomized, double blind, placebo-controlled trial at the Tel Aviv Medical Center (June 2007-November 2009) examined the effects of maternal oral probiotic supplementation on the incidence of NEC, death, and sepsis in very low birth weight (VLBW) infants fed with maternal breast milk. Mothers were assigned to supplementation with Lactobacillus acidophilus and Bifidobacteria lactis 2 × 10(E) [DOSAGE ERROR CORRECTED] CFU/d or to placebo starting from 1 to 3 days postpartum. The primary outcome measures were NEC, sepsis, and death.
Results:
In total 49 mothers of 58 VLBW infants were recruited. A total of 25 infants were in the probiotic group and 33 in the placebo group. The overall incidence of Bell stage II to III NEC was 12%, with an incidence of 4% in the infants of the probiotic group and 18.2% in the placebo group (p = 0.12), respectively. Sepsis and mortality rates were similar.
Conclusion:
Postpartum maternal supplementation with probiotic bacteria may decrease the incidence of NEC in breastfed infants.
More Related Videos
Related Concept Videos
Development of Human Microbiota
Development of the Oral Microbiota
Probiotics
Drugs for Treatment of Constipation-Predominant IBS
Anatomy of the 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...
Drug Dosing: Infants and Children

