An article Chemical mixture exposures during pregnancy and cognitive abilities in school-aged children WOS:000663618700006 published article about ENDOCRINE-DISRUPTING CHEMICALS; ORGANOPHOSPHATE PESTICIDE EXPOSURE; PRENATAL EXPOSURE; SAME-SEX; ASSOCIATION; WOMEN; IQ; QUANTIFICATION; TESTOSTERONE; METABOLITES in [Kalloo, Geetika; Wellenius, Gregory A.; Sullivan, Adam J.; Braun, Joseph M.] Brown Univ, Dept Epidemiol, Providence, RI 02912 USA; [McCandless, Lawrence; Lanphear, Bruce P.] Simon Fraser Univ, Fac Hlth Sci, Burnaby, BC, Canada; [Calafat, Antonia M.; Sjodin, Andreas] Ctr Dis Control & Prevent, Atlanta, GA USA; [Romano, Megan E.; Karagas, Margaret R.] Dartmouth Coll, Dept Epidemiol, Hanover, NH 03755 USA; [Chen, Aimin] Univ Cincinnati, Dept Environm Hlth, Cincinnati, OH USA; [Yolton, Kimberly] Univ Cincinnati, Cincinnati Childrens Hosp Med Ctr, Coll Med, Dept Pediat, Cincinnati, OH USA; [Lanphear, Bruce P.] BC Childrens & Womens Hosp, Child & Family Res Inst, Vancouver, BC, Canada in 2021.0, Cited 59.0. SDS of cas: 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8
Introduction: Gestational exposure to chemical mixtures, which is prevalent among pregnant women, may be associated with adverse childhood neurodevelopment. However, few studies have examined relations between gestational chemical mixture exposure and children’s cognitive abilities. Methods: In a cohort of 253 pregnant women and their children from Cincinnati, OH (enrolled 2003-2006), we quantified biomarker concentrations of 43 metals, phthalates, phenols, polybrominated diphenyl ethers, organophosphate and organochlorine pesticides, polychlorinated biphenyls, perfluoroalkyl substances, and environmental tobacco smoke in blood or urine. Using k-means clustering and principal component (PC) analysis, we characterized chemical mixtures among pregnant women. We assessed children’s cognitive abilities using the Wechsler Preschool and Primary Scale of Intelligence-III and Wechsler Intelligence Scale for ChildrenIV at ages 5 and 8 years, respectively. We estimated covariate-adjusted differences in children’s cognitive ability scores]=cross clusters, and with increasing PC scores and individual biomarker concentrations. Results: Geometric mean biomarker concentrations were generally highest, intermediate, and lowest among women in clusters 1, 2, and 3, respectively. Children born to women in clusters 1 and 2 had 5.1 (95% CI: 9.4,-0.8) and 2.0 (95% CI: 5.5, 1,4) lower performance IQ scores compared to children in cluster 3, respectively. PC scores and individual chemical biomarker concentrations were not associated with cognitive abilities. Conclusions: In this cohort, combined prenatal exposure to phenols, certain phthalates, pesticides, and perfluoroalkyl substances was inversely associated with children’s cognition, but some individual chemical biomarker concentrations were not. Additional studies should determine if the aggregate impact of these chemicals on cognition is different from their individual effects.
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