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Updated: Apr 19, 2026

Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
Efficacy of probiotic therapy in full-term infants with critical illness
Yu Wang1, Li Gao, Yu-hua Zhang
1Department of Pediatrics, the People's Hospital of Henan Province, No. 7, Weiwu Road, Zhengzhou 450003, Henan Province, China. wangyugirl2004@126.com.
Insights
Enteral probiotics supplementation in critically ill neonates reduced nosocomial pneumonia and multiple organ dysfunction syndrome rates. Probiotics also decreased hospital stay duration and enhanced immune activity, with no serious adverse effects observed.
Area of Science:
- Neonatal Intensive Care
- Microbiology
- Immunology
Background:
- Probiotics, microbial supplements, show broad efficacy.
- Assessing safety and effects of enteral probiotics in critically ill neonates is crucial.
Purpose of the Study:
- To evaluate the impact of enteral probiotics on critically ill neonates.
- To determine the safety and efficacy of probiotic supplementation in this vulnerable population.
Main Methods:
- A double-blind, randomized controlled trial involving 100 critically ill neonates.
- Probiotic or placebo administration for 8 days, monitoring for sepsis, MODS, pneumonia, and necrotizing enterocolitis.
- Assessing recovery rates, hospital days, and serum immunoglobulin levels (IgA, IgG, IgM).
Main Results:
- Reduced incidence of nosocomial pneumonia (18% vs. 36%) and MODS (6% vs. 16%) in the probiotic group.
- Shorter hospital stays observed in neonates receiving probiotics (13 ± 3.5 days vs. 15.8 ± 5.3 days).
- Significantly higher IgA levels and no significant differences in sepsis, necrotizing enterocolitis, or recovery rates were noted.
Conclusions:
- Enteral probiotics can enhance immune activity in critically ill neonates.
- Probiotic supplementation is associated with decreased rates of nosocomial pneumonia and MODS.
- Probiotics may reduce hospital stay duration for critically ill neonates without serious adverse effects.
Background:
Probiotics are microbial supplements that have shown efficacy in a wide range of applications. To assess the safety and effects of enteral probiotics in critically ill neonates.
Methods:
A double-blind, randomized controlled trial was conducted in 100 full-term infants with critical illness according to scores of neonatal acute physiology. Fifty neonatal intensive care patients were randomly assigned to receive probiotics three times daily after birth for 8 days, and fifty patients were not given probiotics, but who received a placebo. The incidence of sepsis, multiple organ dysfunction syndrome (MODS), nosocomial pneumonia, and necrotizing enterocolitis were recorded. The prognosis of probiotic treatment was determined based on the rate of recovery and hospital days. Serum IgA, IgG, and IgM concentrations were measured on days 4 and 8.
Results:
Infants in the probiotics group showed a significantly reduced rate of nosocomial pneumonia (18% versus 36%) and multiple organ dysfunction syndrome (6% versus 16%) compared with the placebo group (p<0.05). Significant results were demonstrated in favour of the probiotics for days of hospital stay (13 ± 3.5 d versus 15.8 ± 5.3 d) (p<0.05). However, there were no significant differences in the occurrence of sepsis, necrotizing enterocolitis, and recovery rate. Patients given probiotics had significantly greater levels of IgA than those in the placebo group (p<0.05). No serious adverse effects in the study population were noted.
Conclusions:
Supplements of probiotics to critically ill neonates could enhance immune activity, decrease occurrence of nosocomial pneumonia and MODS, and reduce days in hospital.
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