Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/105149
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dc.contributor.authorCadiou, Solène-
dc.contributor.authorBustamante, Mariona-
dc.contributor.authorAgier, Lydiane-
dc.contributor.authorAndrušaitytė, Sandra-
dc.contributor.authorBasagaña, Xavier-
dc.contributor.authorCarracedo, Angel-
dc.contributor.authorChatzi, Leda-
dc.contributor.authorGražulevičienė, Regina-
dc.contributor.authorGonzalez, Juan R-
dc.contributor.authorGützkow, Kristine Bjerve-
dc.contributor.authorMaitre, Léa-
dc.contributor.authorMason, Dan-
dc.contributor.authorMillot, Frédéric-
dc.contributor.authorNieuwenhuijsen, Mark J-
dc.contributor.authorPapadopoulou, Eleni-
dc.contributor.authorSantorelli, Gillian-
dc.contributor.authorSaulnier, Pierre-Jean-
dc.contributor.authorVives, Marta-
dc.contributor.authorWright, John-
dc.contributor.authorVrijheid, Martine-
dc.contributor.authorSlama, Rémy-
dc.coverage.spatialNL-
dc.date.accessioned2020-05-08T18:17:11Z-
dc.date.available2020-05-08T18:17:11Z-
dc.date.issued2020-
dc.identifier.issn01604120-
dc.identifier.otherVDU02-000063564-
dc.identifier.urihttps://doi.org/10.1016/j.envint.2020.105622-
dc.descriptionarticle no. 105622-
dc.description.abstractBackground: The exposome is defined as encompassing all environmental exposures one undergoes from conception onwards. Challenges of the application of this concept to environmental-health association studies include a possibly high false-positive rate. Objectives: We aimed to reduce the dimension of the exposome using information from DNA methylation as a way to more efficiently characterize the relation between exposome and child body mass index (BMI). Methods: Among 1,173 mother–child pairs from HELIX cohort, 216 exposures (“whole exposome”) were characterized. BMI and DNA methylation from immune cells of peripheral blood were assessed in children at age 6–10 years. A priori reduction of the methylome to preselect BMI-relevant CpGs was performed using biological pathways. We then implemented a tailored Meet-in-the-Middle approach to identify from these CpGs candidate mediators in the exposome-BMI association, using univariate linear regression models corrected for multiple testing: this allowed to point out exposures most likely to be associated with BMI (“reduced exposome”). Associations of this reduced exposome with BMI were finally tested. The approach was compared to an agnostic exposome-wide association study (ExWAS) ignoring the methylome. Results: Among the 2284 preselected CpGs (0.6% of the assessed CpGs), 62 were associated with BMI. Four factors (3 postnatal and 1 prenatal) of the exposome were associated with at least one of these CpGs, among which postnatal blood level of copper and PFOS were directly associated with BMI, with respectively positive and negative estimated effects. The agnostic ExWAS identified 18 additional postnatal exposures, including many persistent pollutants, generally unexpectedly associated with decreased BMI. Discussion: Our approach incorporating a priori information identified fewer significant associations than an agnostic approach[...]en
dc.description.sponsorshipAplinkotyros katedra-
dc.description.sponsorshipGamtos mokslų fakultetas-
dc.description.sponsorshipVytauto Didžiojo universitetas-
dc.format.extentp. 1-16-
dc.language.isoen-
dc.relation.ispartofEnvironment international. Amsterdam : Elsevier B.V., 2020, vol. 138-
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)-
dc.relation.isreferencedbyScienceDirect-
dc.subjectBiologiniai procesailt
dc.subjectVaiko kūno masės indeksaslt
dc.subjectPriežastingumaslt
dc.subjectBiological a priorien
dc.subjectChild body mass index – exposomeen
dc.subjectDimension reduction – DNA methylationen
dc.subjectReverse causalityen
dc.subject.otherEkologija ir aplinkotyra / Ecology and environmental sciences (N012)-
dc.titleUsing methylome data to inform exposome-health association studies: An application to the identification of environmental drivers of child body mass indexen
dc.typeStraipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)-
dc.identifier.doihttps://doi.org/10.1016/j.envint.2020.105622-
dc.identifier.isiWOS:000522749900072-
dcterms.bibliographicCitation107-
dc.date.updated2020-06-01T16:39Z-
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crisitem.author.deptAplinkotyros katedra-
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Appears in Collections:Universiteto mokslo publikacijos / University Research Publications
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