Effects of Lifetime Exposures to Environmental Contaminants on the Adult Gut Microbiome
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Effects of Lifetime Exposures to Environmental Contaminants on the Adult Gut Microbiome. / Thompson, Kelsey N.; Oulhote, Youssef; Weihe, Pal; Wilkinson, Jeremy E.; Ma, Siyuan; Zhong, Huanzi; Li, Junhua; Kristiansen, Karsten; Huttenhower, Curtis; Grandjean, Philippe.
In: Environmental Science & Technology, Vol. 56, No. 23, 2022, p. 16985-16995.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Effects of Lifetime Exposures to Environmental Contaminants on the Adult Gut Microbiome
AU - Thompson, Kelsey N.
AU - Oulhote, Youssef
AU - Weihe, Pal
AU - Wilkinson, Jeremy E.
AU - Ma, Siyuan
AU - Zhong, Huanzi
AU - Li, Junhua
AU - Kristiansen, Karsten
AU - Huttenhower, Curtis
AU - Grandjean, Philippe
PY - 2022
Y1 - 2022
N2 - Emerging experimental evidence indicates that toxicant-induced alterations in gut microbiota composition and activity may affect host homeostasis. However, data from human studies are scarce; to our knowledge, no previous studies have quantified the association of lifetime exposure to environmental chemicals, across multiple time points, with the composition of the adult gut microbiome. Here we studied 124 individuals born in the Faroe Islands in 1986-1987 who were followed approximately every seven years from birth through age 28 years. Organochlorine compounds, including polychlorinated biphenyls (PCBs) and pesticides, perfluoroalkyl substances (PFAS), and mercury (Hg), were measured in cord blood and longitudinally in participants' blood. At age 28, the gut microbiome was assessed using shotgun metagenomic sequencing. Historical contaminant exposures had little direct effect on the adult gut microbiome, while a small number of fastidious anaerobes were weakly linked to recent PFAS/ PFOS exposures at age 28. In this cohort, our findings suggest no lasting effects of early life exposures on adult gut microbial composition, but proximal exposures may contribute to gut microbiome alterations. The methods developed and used for this investigation may help in future identification of small but lasting impacts of environmental toxicant exposure on the gut microbiome.
AB - Emerging experimental evidence indicates that toxicant-induced alterations in gut microbiota composition and activity may affect host homeostasis. However, data from human studies are scarce; to our knowledge, no previous studies have quantified the association of lifetime exposure to environmental chemicals, across multiple time points, with the composition of the adult gut microbiome. Here we studied 124 individuals born in the Faroe Islands in 1986-1987 who were followed approximately every seven years from birth through age 28 years. Organochlorine compounds, including polychlorinated biphenyls (PCBs) and pesticides, perfluoroalkyl substances (PFAS), and mercury (Hg), were measured in cord blood and longitudinally in participants' blood. At age 28, the gut microbiome was assessed using shotgun metagenomic sequencing. Historical contaminant exposures had little direct effect on the adult gut microbiome, while a small number of fastidious anaerobes were weakly linked to recent PFAS/ PFOS exposures at age 28. In this cohort, our findings suggest no lasting effects of early life exposures on adult gut microbial composition, but proximal exposures may contribute to gut microbiome alterations. The methods developed and used for this investigation may help in future identification of small but lasting impacts of environmental toxicant exposure on the gut microbiome.
KW - gut microbiome
KW - early life exposure
KW - NEUROBEHAVIORAL DEFICITS
KW - METHYLMERCURIC CHLORIDE
KW - MERCURY
KW - METABOLISM
KW - HEALTH
KW - CHAIN
U2 - 10.1021/acs.est.2c03185
DO - 10.1021/acs.est.2c03185
M3 - Journal article
C2 - 36394280
VL - 56
SP - 16985
EP - 16995
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 23
ER -
ID: 329572441