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Published on: January 27, 2019
Effects of probiotics on enteric flora and feeding tolerance in preterm infants
Soo Jeong Lee1, Su Jin Cho, Eun Ae Park
1Department of Pediatrics, College of Medicine, Ewha Womans University, Seoul, Korea.
Insights
Probiotic supplementation with Lactobacillus in preterm infants led to gastrointestinal colonization in 37% and improved feeding tolerance. Further research is ongoing to explore effects on other systemic diseases.
Area of Science:
- Neonatal Medicine
- Microbiology
- Gastroenterology
Background:
- Preterm infants exhibit altered gut microbial colonization patterns.
- Limited clinical trials exist on probiotic use in preterm infants.
- Probiotics are live microorganisms conferring health benefits to the host.
Purpose of the Study:
- To determine the colonization rate of Lactobacillus in preterm infants.
- To identify clinical factors influencing Lactobacillus colonization.
- To assess the impact of probiotic supplementation on preterm infant health outcomes.
Main Methods:
- A study involving preterm infants (gestational age < 37 weeks) was conducted.
- Oral supplementation with Lactobacillus acidophilus (10^8 CFU) was administered thrice daily.
- Stool samples were collected pre- and post-supplementation for anaerobic culture and identification.
Main Results:
- Lactobacillus colonization was achieved in 37% (27/73) of preterm infants after 14 days.
- A trend towards increased sepsis incidence was observed in infants without Lactobacillus colonization (p=0.082).
- Infants with Lactobacillus colonization showed significantly improved feeding tolerance.
Conclusions:
- Lactobacillus colonization in 37% of preterm infants was associated with enhanced feeding tolerance.
- Probiotic administration is a viable strategy for modulating gut microbiota in preterm neonates.
- Further double-blind studies are warranted to investigate broader systemic effects.
Background:
Probiotics are live microbes that colonize the gastrointestinal tract and benefit the host. Preterm infants develop abnormal patterns of bowel colonization, and only a few clinical trials have reported the outcomes of preterm infants treated with probiotics.
Purpose:
We investigated the rate of colonization of Lactobacillus and the clinical variables affecting the colonization in preterm infants.
Methods:
Infants with gestational age less than 37 weeks treated at Ewha Womans University Hospital between March 2003 and July 2004 were eligible. Lactobacillus acidophilus (containing 10(8) CFU) was supplemented orally, mixed with breast milk or formula divided into three doses a day. Stool samples were collected before and 14 days after supplementation of the probiotic. Stool samples were anaerobically cultured on Rogosa agar and identified by Gram stain, catalase test and glucose fermentation test. Clinical characteristics were analyzed.
Results:
Seventy-three patients with an average gestational age of 33.0 +/- 2.5 weeks were studied. Meconium was cultured in 46 patients and Lactobacillus was not detected. Probiotic supplementation began on 3.4 +/- 6.8 days, and after 14 days of supplementation, Lactobacillus was cultured in an average of 3.01 x 10(8) CFU in the stool of 37.0% (27/73) of the patients. There was a tendency towards an increased incidence of sepsis in the Lactobacillus- group (p = 0.082). In the Lactobacillus+ group, a striking increase in feeding tolerance was detected.
Conclusion:
In preterm infants, with the administration of probiotics, 37% of the preterm infants had Lactobacillus colonized in the gastrointestinal tract and improved feeding tolerance. A double-blind study is in progress for further investigation into the effect on other systemic diseases in premature infants.
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