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VOLUME 1 , ISSUE 2 ( April-June, 2022 ) > List of Articles

REVIEW ARTICLE

The First 1000 Days: Assembly of the Neonatal Microbiome and Its Impact on Health Outcomes

Joann Romano-Keeler, Jun Sun

Keywords : Bacteria, Fungi, Immunity, Microbiome, Necrotizing enterocolitis, Probiotics, Virome

Citation Information : Romano-Keeler J, Sun J. The First 1000 Days: Assembly of the Neonatal Microbiome and Its Impact on Health Outcomes. 2022; 1 (2):219-226.

DOI: 10.5005/jp-journals-11002-0028

License: CC BY-NC 4.0

Published Online: 05-07-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Early life microbial colonization is critical for the development of the immune system, postnatal growth, and long-term health and disease. The dynamic and nascent microbiomes of children are highly individualized and are characterized by low bacterial diversity. Any disruptions in microbial colonization can contribute to shifts in normal microbial colonization that persist past the first 1000 days of life and result in intestinal dysbiosis. Here, we focus on microbiome-host interactions during fetal, newborn, and infant microbiome development. We summarize the roles of bacterial communities in fetal development and adverse health outcomes due to dysbiosis. We also discuss how internal and external factors program the microbiome's metabolic machinery as it evolves into an adult-like microbiome. Finally, we discuss the limits of current studies and future directions. Studies on the early-life microbiome will be critical for a better understanding of childhood health and diseases, as well as restorative methods for the prevention and treatment of diseases in adulthood.

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