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Published on: April 28, 2014
Prebiotic and probiotic supplementation prevents rhinovirus infections in preterm infants: a randomized,
Raakel Luoto1, Olli Ruuskanen1, Matti Waris2
1Department of Paediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland.
Insights
Early prebiotic or probiotic supplementation significantly reduced respiratory tract infections (RTIs) in preterm infants. This gut microbiota modification offers a promising strategy for preventing viral infections in vulnerable newborns.
Area of Science:
- Microbiology
- Immunology
- Pediatrics
Background:
- Viral respiratory tract infections (RTIs) pose a significant health risk, especially to vulnerable populations.
- Simple and safe preventative strategies are crucial for managing these infections.
Purpose of the Study:
- To investigate the efficacy of early prebiotic or probiotic supplementation in reducing virus-associated RTIs in preterm infants during their first year of life.
Main Methods:
- A randomized, double-blind, placebo-controlled trial involving 94 preterm infants.
- Infants received oral prebiotics, probiotics (Lactobacillus rhamnosus GG), or placebo from day 3 to 60 of life.
- Virus-associated RTIs were confirmed via nucleic acid testing of nasal swabs.
Main Results:
- Prebiotic and probiotic groups showed a significantly lower incidence of RTIs compared to the placebo group.
- Rhinovirus-induced episodes, the majority of RTIs, were also significantly reduced in both intervention groups.
- No significant differences were observed in viral load, shedding duration, or infection severity.
Conclusions:
- Gut microbiota modulation using specific prebiotics and probiotics may provide a novel, cost-effective method for preventing rhinovirus infections.
- This approach holds potential for reducing the burden of viral respiratory infections in infants.
Background:
Simple and safe strategies for the prevention of viral respiratory tract infections (RTIs) are needed.
Objective:
We hypothesized that early prebiotic or probiotic supplementation would reduce the risk of virus-associated RTIs during the first year of life in a cohort of preterm infants.
Methods:
In this randomized, double-blind, placebo-controlled trial (ClinicalTrials.gov no. NCT00167700), 94 preterm infants (gestational age, ≥32 + 0 and ≤36 + 6 weeks; birth weight, >1500 g) treated at Turku University Hospital, Turku, Finland, were allocated to receive oral prebiotics (galacto-oligosaccharide and polydextrose mixture, 1:1), a probiotic (Lactobacillus rhamnosus GG, ATCC 53103), or placebo (microcrystalline cellulose) between days 3 and 60 of life. The primary outcome was the incidence of clinically defined virus-associated RTI episodes confirmed from nasal swabs by using nucleic acid testing. Secondary outcomes were the severity and duration of RTIs.
Results:
A significantly lower incidence of RTIs was detected in infants receiving prebiotics (rate ratio [RR], 0.24; 95% CI, 0.12-0.49; P < .001) or probiotics (RR, 0.50; 95% CI, 0.28-0.90; P = .022) compared with those receiving placebo. Also, the incidence of rhinovirus-induced episodes, which comprised 80% of all RTI episodes, was found to be significantly lower in the prebiotic (RR, 0.31; 95% CI, 0.14-0.66; P = .003) and probiotic (RR, 0.49; 95% CI, 0.24-1.00; P = .051) groups compared with the placebo group. No differences emerged among the study groups in rhinovirus RNA load during infections, duration of rhinovirus RNA shedding, duration or severity of rhinovirus infections, or occurrence of rhinovirus RNA in asymptomatic infants.
Conclusions:
Gut microbiota modification with specific prebiotics and probiotics might offer a novel and cost-effective means to reduce the risk of rhinovirus infections.
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