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The association between the composition of the early-life intestinal microbiome and eczema in the first year of life
- Frontiers in Microbiomes. - Frontiers Media SA. - 2023, vol. 2
Introduction: The early-life intestinal microbiome plays a crucial role in the development and regulation of the immune system. Perturbations in its composition during this critical period have been linked to the development of allergic diseases.
Objective: This study aimed to investigate the association between the
composition of the early-life intestinal microbiome and the presence of
eczema in the first year of life using shotgun metagenomic sequencing and functional analyses (metabolic pathways).
Methods: Stool samples from 393 healthy term infants collected at 1 week of age were analyzed with shotgun metagenomic sequencing. Environmental and clinical data were prospectively collected using 3-monthly validated questionnaires. Participants were clinically assessed during study visits at 12 months of age. Eczema was diagnosed by the UK diagnostic tool and by a research nurse. Data analysis was stratified by delivery mode.
Results: Eczema was diagnosed in 16.4% (60/366) of participants by nurse diagnosis. Infants born by cesarean section (CS) with nurse-diagnosed eczema had a higher relative abundance of Escherichia, Shigella, Enterobacter, and Citrobacter and a lower relative abundance of Veillonella than CS-born infants without eczema. In addition, CS-born infants without eczema had a higher abundance of genes involved in lactic fermentation. Vaginally born infants with eczema had a higher relative abundance of Bacteroides and a lower abundance of Streptococcus.
Conclusion: There is an association between the bacterial composition of the intestinal microbiome at 1 week of age and the presence of eczema in the first 12 months of life.
- Faculté des sciences et de médecine
- Master en médecine
Open access status
- leo_microbiomeandeczema_frontmicrob_2023.pdf: 2
- DataSheet_3_The association between the composition of the early-life intestinal microbiome and eczema in the first year of life.xlsx: 1
- DataSheet_2_The association between the composition of the early-life intestinal microbiome and eczema in the first year of life.pdf: 1