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Prenatal exposure to trace elements impacts mother-infant gut microbiome, metabolome and resistome during the first year of life
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Prenatal exposure to trace elements impacts mother-infant gut microbiome, metabolome and resistome during the first year of life
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Journal Article
Prenatal exposure to trace elements impacts mother-infant gut microbiome, metabolome and resistome during the first year of life
2025
Overview
Infancy is a critical window for the colonization of gut microbiome. However, xenobiotic impacts on gut microbiome development in early life remain poorly understood. Here, we recruit 146 mother-infant pairs and collect stool samples at 3, 6, and 12 months after delivery for amplicon sequencing (
N
= 353), metagenomics (
N
= 65), and metabolomics (
N
= 198). Trace elements in maternal hair samples (
N
= 119) affect diversity and composition of the infant gut microbiome. Shannon diversity in 3 month-old infants is correlated positively with selenium and negatively with copper, and relative abundance of
Bifidobacterium
increases under high exposure to aluminum and manganese. During the first year of life, infants and their paired mothers have distinct microbial diversity and composition, and their bacterial community structures gradually approach. here are 56 differential metabolites between the first and second visit and 515 differential metabolites between the second and third visit. The typical profile of antibiotic resistance genes (ARGs) significantly differs between infants and their mothers. High levels of copper and arsenic exposure may induce the enrichment of ARGs in the infant gut. Our findings highlight the dynamics of the gut microbiome, metabolites, and ARG profiles of mother-infant pairs after delivery, associated with prenatal exposure to trace elements.
Here, using samples from 146 mother-infant pairs and multi-omics, the authors characterize the dynamics of the gut microbiome, metabolome, and antibiotic resistance gene profiles during the first year of life in association with prenatal exposure to trace elements.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 49
/ 692/499
/ Adult
/ Aluminum
/ Arsenic
/ Babies
/ Copper
/ Exposure
/ Female
/ Gastrointestinal Microbiome - drug effects
/ Gastrointestinal Microbiome - genetics
/ Humanities and Social Sciences
/ Humans
/ Infant
/ Infants
/ Male
/ Maternal Exposure - adverse effects
/ Mother-offspring interactions
/ Prenatal Exposure Delayed Effects - metabolism
/ Prenatal Exposure Delayed Effects - microbiology
/ Science
/ Selenium
