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Updated: Aug 10, 2025

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
Published on: August 12, 2020
The influence of maternal factors on the neonatal microbiome and health
Bin Zhu1, Myrna Serrano1, Gregory Buck1
1Virginia Commonwealth University.
Insights
Maternal factors significantly shape the neonatal microbiome. While the buccal microbiome mirrors the mother's, the gastrointestinal microbiome develops uniquely, influenced by maternal health and inflammation.
Area of Science:
- Microbiome research
- Maternal-neonatal health
- Human gut microbiome
Background:
- The human microbiome is crucial for health, yet maternal influences on the neonatal microbiome are not fully understood.
- Investigating the early development of the neonatal microbiome and its determinants is essential for understanding infant health.
- Maternal health status and environmental factors are hypothesized to play a significant role in shaping the initial microbial communities of newborns.
Approach:
- Comparative analysis of maternal and neonatal buccal and gastrointestinal microbiomes.
- Assessment of the impact of maternal inflammation-related metabolites on neonatal gut microbiome composition.
- Evaluation of microbial infections in the maternal reproductive tract and their effect on neonatal microbiomes.
- Investigation of maternal lipid supplementation as a potential mitigating factor.
Key Points:
- Neonatal buccal microbiome composition resembles the maternal buccal microbiome.
- Neonatal gastrointestinal microbiome exhibits distinct early-stage development, influenced by maternal inflammation.
- Maternal reproductive tract infections universally affect neonatal microbiome complexity.
- Maternal lipids can mitigate adverse effects of certain maternal factors on neonatal microbiomes.
- Newborn intensive care unit (NICU) admission correlates with suboptimal maternal microbiomes and health.
Conclusions:
- The neonatal microbiome's development is intricately linked to maternal health and specific microbial exposures.
- Body site specificity is critical in understanding how maternal factors modulate neonatal microbiome composition.
- Targeting maternal health and microbial status may offer strategies to optimize neonatal microbiome development and overall infant health.
Abstract:
The human microbiome plays an essential role in human health. However, the influence of maternal factors on the neonatal microbiome remains obscure. Herein, our observations suggest that the neonatal buccal microbiome is similar to the maternal buccal microbiome, but the neonatal gastrointestinal microbiome develops a unique composition at an early stage. The low complexity of the neonatal buccal microbiome is a hallmark of maternal and neonatal health, but that of the neonatal gastrointestinal microbiome is associated with maternal inflammation-related metabolites. Microbial infections in the maternal reproductive tract universally impact the complexity of the neonatal microbiomes, and the body site is most important in modulating the composition of the neonatal microbiomes. Additionally, maternal lipids attenuated the adverse influence of several maternal factors on the neonatal microbiomes. Finally, admission of neonates to the newborn intensive care unit is associated with sub-optimal states of the maternal buccal and rectal microbiomes and maternal health.
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