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Single strain versus multispecies probiotic on necrotizing enterocolitis and faecal IgA levels in very low birth
Guadalupe Gómez-Rodríguez1, Norma Amador-Licona2, Leonel Daza-Benítez3
1Department of Health Research, Instituto Mexicano del Seguro Social, Guanajuato, Leon, Mexico.
Insights
Single strain or multispecies probiotics did not differ in preventing necrotizing enterocolitis (NEC) or increasing fecal secretory IgA (sIgA) in preterm infants. Fecal sIgA levels correlated with gestational age and birth weight.
Area of Science:
- Neonatology
- Gastroenterology
- Immunology
Background:
- Probiotics show promise for preventing necrotizing enterocolitis (NEC) in preterm infants.
- Variations in probiotic composition necessitate comparative trials.
- This study compares single-strain versus multi-species probiotics for NEC prevention and impact on fecal secretory IgA (sIgA).
Purpose of the Study:
- To compare the efficacy of single-strain (Lactobacillus acidophilus boucardii) versus multi-species probiotics in preventing NEC.
- To assess the impact of these probiotics on fecal secretory IgA (sIgA) levels in very low preterm newborns.
- To evaluate the relationship between sIgA levels and clinical outcomes in preterm infants.
Main Methods:
- A double-blind, randomized trial involving 90 preterm newborns.
- Infants were assigned to receive either L. acidophilus boucardii or multi-species probiotics.
- Primary outcome: NEC incidence; Secondary outcome: change in fecal sIgA levels over 3 weeks.
Main Results:
- NEC incidence was similar between groups (0% vs. 2.2%).
- Fecal sIgA levels increased significantly in both groups (31% vs. 47%), with no significant difference between them.
- Higher sIgA increments correlated with greater gestational age and birth weight.
Conclusions:
- Neither single-strain nor multi-species probiotics demonstrated a significant difference in preventing NEC or increasing fecal sIgA levels.
- Fecal sIgA levels were positively associated with gestational age and body weight in very low preterm infants.
- No adverse effects were reported with probiotic use.
Background:
According to the literature, probiotics are an attractive alternative to prevent necrotizing enterocolitis (NEC). However, due to differences in probiotic composition, randomized controlled trials are necessary to compare different probiotic mixtures. The objective of this study was to compare single strain (Lactobacillus acidophilus boucardii) versus multispecies probiotics on NEC incidence and faecal secretory Immunoglobulin A (sIgA) levels in very low preterm newborns.
Methods:
We performed a double-blind randomized trial in 90 newborns. L. acidophilus boucardii strain or multispecies probiotics were randomly assigned to preterm newborns. As the primary outcome, we evaluated NEC incidence on the total length of neonatal intensive care unit (NICU) stay. As the secondary outcome, we measured the change in faecal sIgA levels from baseline to 3 weeks following the use of probiotics.
Results:
NEC incidence was similar between groups (0% vs. 2.2% for the single strain and multispecies probiotic, respectively). Faecal sIgA levels increased significantly (p < 0.001) within groups (31% for single strain and 47% for multispecies probiotic), but this increase was not different between groups. Neonates with a faecal sIgA level increment >0.45 mg/dl showed higher gestational age, birth weight, and weight at the second and third weeks of follow up than neonates with a faecal sIgA level increment ≤0.45 mg/dl. No adverse effects were found after probiotics use.
Conclusions:
No difference between strains of probiotics used was found on NEC incidence or in the increase of faecal sIgA levels. Faecal sIgA levels were positively related to gestational age and body weight in very low preterm infants. ClinicalTrials.gov/NCT02245815.
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