Exposure to environmental pollutants selects for xenobiotic-degrading functions in the human gut microbiome.
Humans
Gastrointestinal Microbiome
/ drug effects
Xenobiotics
/ metabolism
Environmental Pollutants
/ metabolism
Female
Male
Feces
/ microbiology
Italy
Adult
Middle Aged
Environmental Exposure
/ adverse effects
Metagenomics
/ methods
Bacteria
/ genetics
Cohort Studies
Metals, Heavy
/ toxicity
Aged
Environmental Pollution
/ adverse effects
Biodegradation, Environmental
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
27 May 2024
27 May 2024
Historique:
received:
19
02
2024
accepted:
08
05
2024
medline:
28
5
2024
pubmed:
28
5
2024
entrez:
27
5
2024
Statut:
epublish
Résumé
Environmental pollutants from different chemical families may reach the gut microbiome, where they can be metabolized and transformed. However, how our gut symbionts respond to the exposure to environmental pollution is still underexplored. In this observational, cohort study, we aim to investigate the influence of environmental pollution on the gut microbiome composition and potential activity by shotgun metagenomics. We select as a case study a population living in a highly polluted area in Campania region (Southern Italy), proposed as an ideal field for exposomic studies and we compare the fecal microbiome of 359 subjects living in areas with high, medium and low environmental pollution. We highlight changes in gut microbiome composition and functionality that were driven by pollution exposure. Subjects from highly polluted areas show higher blood concentrations of dioxin and heavy metals, as well as an increase in microbial genes related to degradation and/or resistance to these molecules. Here we demonstrate the dramatic effect that environmental xenobiotics have on gut microbial communities, shaping their composition and boosting the selection of strains with degrading capacity. The gut microbiome can be considered as a pivotal player in the environment-health interaction that may contribute to detoxifying toxic compounds and should be taken into account when developing risk assessment models. The study was registered at ClinicalTrials.gov with the identifier NCT05976126.
Identifiants
pubmed: 38802370
doi: 10.1038/s41467-024-48739-7
pii: 10.1038/s41467-024-48739-7
doi:
Substances chimiques
Xenobiotics
0
Environmental Pollutants
0
Metals, Heavy
0
Banques de données
ClinicalTrials.gov
['NCT05976126']
Types de publication
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
4482Subventions
Organisme : Ministero della Salute (Ministry of Health, Italy)
ID : GR-2016-02362975
Informations de copyright
© 2024. The Author(s).
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