Related Experiment Video
Updated: Jul 8, 2025

Probiotic Studies in Neonatal Mice Using Gavage
Published on: January 27, 2019
Factors affecting the early establishment of neonatal intestinal flora and its intervention measures
Guangyu Ma1, Yuguo Shi1, Lulu Meng1
1Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou, China.
Insights
Early intestinal flora is crucial for infant health. This review examines factors influencing neonatal gut microbes and strategies for reconstructing healthy gut microbiota in vulnerable infants.
Area of Science:
- Microbiology
- Neonatal Health
- Gut Microbiome Research
Background:
- The early-life intestinal flora significantly impacts long-term human health.
- Understanding the establishment of neonatal gut microbiota is essential for infant well-being.
- Numerous factors, including maternal, infant, and environmental influences, shape the initial gut microbiome.
Purpose of the Study:
- To review the mechanisms of intestinal flora colonization in newborns.
- To discuss factors influencing the establishment of neonatal intestinal flora.
- To explore methods for reconstructing gut microbiota in infants with colonization defects.
Main Methods:
- Literature review of studies on neonatal intestinal flora.
- Analysis of factors such as delivery mode, gestational age, and feeding practices.
- Examination of strategies for microbiota reconstruction in cesarean-born and premature infants.
Main Results:
- Delivery mode, gestational age, and feeding methods are key determinants of neonatal gut microbiota composition.
- Infants born via cesarean section and premature infants often exhibit altered gut microbiota colonization.
- Both natural and artificial methods can be employed to restore healthy gut flora.
Conclusions:
- The establishment of neonatal intestinal flora is a complex process influenced by multiple factors.
- Targeted interventions can address gut microbiota dysbiosis in high-risk infants.
- Further research can provide a foundation for preventing and treating diseases linked to neonatal gut flora issues.
Abstract:
In recent years, it has become evident that early-life intestinal flora plays a pivotal role in determining human health. Consequently, it is imperative to explore the establishment of neonatal intestinal flora and its influencing factors. Early neonatal intestinal flora is influenced by a multitude of factors, including maternal and infant-related factors, as well as external environment. This review summarizes the colonization mechanism of intestinal flora in the early life of newborns and discussed their influence on the establishment of neonatal intestinal flora, taking into account factors such as delivery mode, gestational age and feeding mode. Additionally, this review delves into the natural or artificial reconstruction of intestinal flora colonization defects in infants born via cesarean section and premature infants, with the goal of establishing a theoretical foundation for preventing and treating issues related to neonatal intestinal flora colonization and associated diseases.
More Related Videos
Related Concept Videos
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Bacterial Flora of the Large Intestine
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
Defense Mechanism Against Infection
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...

