Urinary trace metals in association with fetal ultrasound measures during pregnancy.
birth weight
fetal growth
metals
mixtures
prenatal exposure
Journal
Environmental epidemiology (Philadelphia, Pa.)
ISSN: 2474-7882
Titre abrégé: Environ Epidemiol
Pays: United States
ID NLM: 101719527
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
entrez:
24
3
2020
pubmed:
24
3
2020
medline:
24
3
2020
Statut:
ppublish
Résumé
Toxic metals have been associated with lower birth weight while essential metals have been associated with higher birth weight. Evidence for other metals is either inconsistent or limited in terms of number of studies. This study analyzed 17 urinary metals, individually and as a mixture, and their association with measures of fetal growth in the LIFECODES birth cohort. Ultrasound was used to measure abdominal circumference, head circumference, and femur length and measures were used to calculate estimated fetal weight at ~26 and ~35 weeks. We calculated the z-score based on gestational age at scan, and estimated fetal weight (EFW) was combined with birth weight for longitudinal analyses. Metals were measured in samples collected at ~26 weeks. We used linear mixed effects models to examine associations between metals and repeated measures of each outcome, controlling for covariates. Principal components analysis reduced the biomarkers to predictors that may share some commonality. We found that an interquartile range increase in selenium was inversely associated with femur length z-score as well as other growth outcomes. Other essential metals, however, were associated with an increase in growth. Finally, the PCA component comprised of arsenic, mercury, and tin was associated with decreased head circumference z-score (-0.14 [95% CI: -0.23, -0.05]).
Identifiants
pubmed: 32201854
doi: 10.1097/ee9.0000000000000075
pmc: PMC7083213
mid: NIHMS1554047
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : NIEHS NIH HHS
ID : R01 ES018872
Pays : United States
Organisme : NIEHS NIH HHS
ID : U2C ES026553
Pays : United States
Organisme : NIEHS NIH HHS
ID : U2C ES026555
Pays : United States
Organisme : Intramural NIH HHS
ID : ZIA ES103321
Pays : United States
Déclaration de conflit d'intérêts
Conflicts of interests: Authors declare no conflicts of interest.
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