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Updated: Jan 23, 2026
Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
Probiotic mechanisms of action
Katrina Halloran1, Mark A Underwood1
1University of California Davis, Department of Pediatrics, Sacramento, CA, USA.
Insights
Probiotic microbes help infant gut health by reducing inflammation and improving metabolism. These findings are based on in vitro and animal studies, highlighting benefits for various infant conditions.
Area of Science:
- Microbiology
- Pediatric Medicine
- Gastroenterology
Background:
- Intestinal dysbiosis is linked to infant diseases like necrotizing enterocolitis, sepsis, colic, and antibiotic-associated diarrhea.
- Probiotics are used in infants to prevent acute and chronic childhood diseases, including asthma and atopic conditions.
Purpose of the Study:
- To review the key mechanisms by which probiotic microbes enhance infant health.
- To emphasize recent discoveries in probiotic mechanisms of action.
Main Methods:
- Review of in vitro studies.
- Analysis of in vivo animal models.
- Synthesis of current research on probiotic functions.
Main Results:
- Probiotics have been shown to decrease inflammation.
- Probiotics can reduce intestinal permeability.
- Probiotics modulate the intestinal microbiota and influence host metabolism.
Conclusions:
- Probiotic administration offers a promising strategy for managing and preventing infant gastrointestinal and immune-related disorders.
- Understanding probiotic mechanisms is crucial for optimizing their therapeutic use in infants.
Abstract:
Intestinal dysbiosis is associated with a large number of disease processes including necrotizing enterocolitis and late-onset sepsis in preterm infants and colic and antibiotic-associated diarrhea in term infants. Probiotic microbes are increasingly administered to infants with the intent of decreasing risk of these acute diseases as well as chronic diseases of childhood such as asthma and atopic disease. The mechanisms by which probiotics decrease inflammation, decrease intestinal permeability, alter the intestinal microbiota, and influence metabolism have been discovered through both in vitro studies and in vivo in animal models. We review key mechanisms by which probiotic microbes improve health with emphasis on recent discoveries in the field.
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