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Developmental Readiness for Complementary Feeding: Associations with Initiation Before Age 6 Months

Putnick, Diane L; Ghassabian, Akhgar; Clayton, Priscilla K; Sundaram, Rajeshwari; Yeung, Edwina H
OBJECTIVES/OBJECTIVE:To evaluate whether parents who assess their infants as more developmentally advanced are more likely to begin feeding their infants complementary foods before 6 months, and whether developmental readiness explains racial and ethnic differences in complementary food introduction. STUDY DESIGN/METHODS:In a cohort of mothers of 5475 infants from New York state, 9 markers of infant development and timing of initiating complementary feeding were assessed. Mixed effect models assessed associations between developmental markers and initiation of complementary feeding before 6 months term-corrected age. Direct and indirect effects of racial and ethnic differences in complementary feeding through a total development score were computed. RESULTS:In a fully adjusted model, infant sitting (adjusted odds ratio [aOR]:1.60, 95% CI:1.32, 1.93), head control (aOR:1.51, 95% CI:1.26, 1.81), reaching (aOR:1.19, 95% CI:1.04, 1.37), mouthing (aOR:1.26, 95%CI:1.08, 1.46), and having a good appetite (aOR:1.61, 95%CI:1.15, 2.24) were uniquely associated with complementary feeding before age 6 months. A 1-point increase in a total development score was also associated with higher odds of complementary feeding (aOR:1.26, 95% CI:1.19, 1.33). The development score explained some racial and ethnic differences in the odds of complementary feeding before 6 months. CONCLUSIONS:Results suggest that parents are using their children's developmental markers to decide when to begin complementary feeding. Furthermore, observations of racial and ethnic differences in the timing of complementary feeding may be explained by perceptions of developmental readiness, in line with recommendations. Future research on complementary feeding should incorporate assessments of infant developmental readiness.
PMID: 40651552
ISSN: 1097-6833
CID: 5891492

Correction: Clayton et al. Early Infant Feeding Practices and Associations with Growth in Childhood. Nutrients 2024, 16, 714

Clayton, Priscilla K; Putnick, Diane L; Trees, Ian R; Ghassabian, Akhgar; Tyris, Jordan N; Lin, Tzu-Chun; Yeung, Edwina H
In the original publication [...].
PMID: 40647358
ISSN: 2072-6643
CID: 5891422

Prenatal exposure to phthalates and alternative plasticizers and emotional and behavioral outcomes in early childhood in the Environmental influences on Child Health outcomes (ECHO) cohort

Oh, Jiwon; Buckley, Jessie P; Upadhyaya, Sudhi; Kannan, Kurunthachalam; Barrett, Emily S; Bastain, Theresa M; Breton, Carrie V; Eick, Stephanie M; Geiger, Sarah Dee; Ghassabian, Akhgar; Habre, Rima; Herbstman, Julie B; Hirtz, Deborah; Liang, Donghai; LeWinn, Kaja; Meeker, John D; O'Connor, Thomas G; Hertz-Picciotto, Irva; Ruden, Douglas; Sathyanarayana, Sheela; Schantz, Susan L; Schweitzer, Julie B; Sigal, Anat; Woodruff, Tracey J; Zhao, Qi; Schmidt, Rebecca J; Bennett, Deborah H; ,
BACKGROUND:Evidence suggests prenatal phthalate exposure adversely affects children's behavior. However, epidemiological studies on alternative plasticizers remain scarce. This study investigated associations of gestational exposure to phthalates and alternative plasticizers with internalizing and externalizing behaviors in children aged 1.5-5 years. METHODS:The study included 2617 mother-child dyads from 13 Environmental influences on Child Health Outcomes (ECHO) cohorts. Maternal urine samples, primarily collected mid- to late-pregnancy, were analyzed for 27 phthalate metabolites and 6 alternative plasticizer metabolites. Based on detection frequency, metabolite concentrations were modeled either continuously or categorically (Group 1: non-detectable, 2: lower detectable, 3: higher detectable). Covariate-adjusted associations between individual metabolite concentrations and internalizing and externalizing T-scores on the Child Behavior Checklist for Ages 1½-5 were estimated using linear mixed-effects models. Effect modification by child sex was also examined. RESULTS:for MHxP Group 3 = 1.23, 95% CI: 0.35, 2.12). We observed no robust associations between phthalate metabolites and internalizing T-scores, nor between cyclohexane-1,2-dicarboxylic acid mono carboxyisooctyl ester (DINCH) metabolites and any behavioral outcomes. Child sex modified associations between several metabolites and externalizing T-scores, although the direction of effect varied by metabolite. CONCLUSION/CONCLUSIONS:This large-scale study suggests that prenatal exposure to several phthalates, but not to the alternative plasticizer DINCH, may be associated with a small-to-modest increase in externalizing behaviors in young children.
PMID: 40617232
ISSN: 1873-6750
CID: 5888682

Prenatal exposure to organophosphate ester flame retardants and behavioral outcomes in early childhood in the Environmental influences on Child Health Outcomes (ECHO) cohort

Oh, Jiwon; Quirós-Alcalá, Lesliam; Li, Xuan; Kannan, Kurunthachalam; Lyu, Wenjie; Avalos, Lyndsay A; Barrett, Emily S; Bastain, Theresa M; Buckley, Jessie P; Cintora, Patricia; Croen, Lisa A; Dunlop, Anne L; Ghassabian, Akhgar; Habre, Rima; Herbstman, Julie B; Hernandez-Castro, Ixel; Hertz-Picciotto, Irva; Liang, Donghai; McEvoy, Cindy T; O'Connor, Thomas G; Sathyanarayana, Sheela; Schantz, Susan L; Schmidt, Rebecca J; Schweitzer, Julie B; Starling, Anne P; Volk, Heather E; Woodbury, Megan L; Woodruff, Tracey J; Zhao, Qi; Zhu, Yeyi; Bennett, Deborah H; ,
BACKGROUND:Prenatal exposure to organophosphate esters (OPEs) has been linked to neurotoxic effects in children; however, epidemiological evidence remains inconclusive. We investigated associations of prenatal OPE exposure with child behaviors. METHODS:We analyzed data of 2948 mother-child dyads from 12 prospective cohorts of the Environmental influences on Child Health Outcomes (ECHO) Cohort. Nine OPE biomarkers quantified in prenatal maternal urine were modeled based on detection frequency. Child behaviors were assessed using the Child Behavior Checklist for Ages 1½-5. We used linear mixed effects models to examine associations between each OPE biomarker and composite T-scores. We evaluated child sex and social vulnerability as potential effect modifiers. RESULTS: = -0.89, 95% CI: -1.74, -0.04). Associations between high BCPP exposure and higher externalizing and total problem T-scores were stronger among children from highly vulnerable neighborhoods compared to those from less vulnerable neighborhoods (p-interaction < 0.1). Child sex modified associations for bis(1,3-dichloro-2-propyl) phosphate and high BCPP exposure, with males exhibiting greater adverse behaviors for all associations. DISCUSSION/CONCLUSIONS:Gestational exposure to several OPEs may be adversely associated with early behavioral development.
PMID: 40628179
ISSN: 1873-6750
CID: 5890662

Exploratory untargeted metabolomics analysis reveals differences in metabolite profiles in pregnant people exposed vs. unexposed to E-cigarettes secondhand in the NYU children's health and environment study

Cavalier, Haleigh; Long, Sara E; Rodrick, Tori; Siu, Yik; Jacobson, Melanie H; Afanasyeva, Yelena; Sherman, Scott; Liu, Mengling; Kahn, Linda G; Jones, Drew R; Trasande, Leonardo
INTRODUCTION/BACKGROUND:Secondhand exposure to e-cigarettes represents a potential population health risk given e-cigarette's prevalence and their unknown health effects, particularly among vulnerable populations such as pregnant people. OBJECTIVES/OBJECTIVE:To explore metabolomic differences between pregnant people exposed vs. not exposed to secondhand e-cigarette aeresols, to identify possible biomarkers of exposure and metabolic pathways perturbed by e-cigarettes. METHODS:Exposed participants (n = 19) from the NYU Children's Health and Environment Study were matched to unexposed participants (n = 57) at a 1:3 ratio on age, hospital of recruitment, and race/ethnicity. Early-pregnancy urine samples were analyzed via an untargeted metabolomics platform using reverse-phase liquid chromatography mass-spectrometry. Feature-exposure associations were estimated using conditional logistic regression to adjust for matching factors. A sensitivity analysis was conducted adjusting for secondhand tobacco exposure. RESULTS:Among features enriched in the exposed group were flavonoids and flavor-related compounds including homoeriodictyol and naringenin-7-O-beta-D-glucuronide, 3-acetomidocoumarin, and guaiacol pentosylglucoside; synthetic drugs such as the endocannabinoid AM1172 and the stimulant alpha-PVP; and metabolites associated with lipid metabolism, including 2,4-undecadiene-8,10-diynoic acid isobutylamide, palmitamide, glycerol trihexanoate, and tetradecyl phosphonate. Among features negatively associated with exposure were xanthines. CONCLUSION/CONCLUSIONS:This study is the first untargeted metabolomics study investigating metabolomic markers of e-cigarette exposure, including secondhand exposure, in a pregnant cohort. Despite this study's small size and exploratory nature, the results of this work suggest that flavoring components could be biomarkers for e-cigarette exposure, and that co-exposure to e-cigarettes and other drugs may be prevalent.
PMID: 40569475
ISSN: 1573-3890
CID: 5874782

Exposure to organophosphate ester flame retardants and plasticizers during pregnancy and autism-related outcomes in the ECHO Cohort

Ames, Jennifer L; Ferrara, Assiamira; Feng, Juanran; Alexeeff, Stacey; Avalos, Lyndsay A; Barrett, Emily S; Bastain, Theresa M; Bennett, Deborah H; Buckley, Jessie P; Carignan, Courtney C; Cintora, Patricia; Ghassabian, Akhgar; Hedderson, Monique M; Hernandez-Castro, Ixel; Kannan, Kurunthachalam; Karagas, Margaret R; Karr, Catherine J; Kuiper, Jordan R; Liang, Donghai; Lyall, Kristen; McEvoy, Cindy T; Morello-Frosch, Rachel; O'Connor, Thomas G; Oh, Jiwon; Peterson, Alicia K; Quiros-Alcala, Lesliam; Sathyanarayana, Sheela; Schantz, Susan; Schmidt, Rebecca J; Starling, Anne P; Woodruff, Tracey J; Volk, Heather E; Zhu, Yeyi; Croen, Lisa A; ,
BACKGROUND/UNASSIGNED:Organophosphate ester flame retardants and plasticizers (OPEs) have myriad uses in industry and consumer products. Increasing human exposure to OPEs has raised concerns about their potential effects on child neurodevelopment during pregnancy. OBJECTIVE/UNASSIGNED:We investigated whether OPE urinary concentrations during pregnancy were associated with child autism-related outcomes. METHODS/UNASSIGNED:We included 4159 mother-child pairs from 15 cohorts in the NIH Environmental influences on Child Health Outcomes (ECHO) Consortium, with children born from 2006-2020 (median age [interquartile range]: 6 [4,10] years). Nine OPE biomarkers were measured in urine samples collected mid- to late pregnancy. Dilution-adjusted biomarkers were modeled continuously, categorically (high [> median], moderate [≤ median], non-detect), or as detect/non-detect depending on their detection frequency. We assessed child autism-related traits via a) parent report on the Social Responsiveness Scale (SRS) and b) clinical autism diagnosis. We examined associations of OPEs with child outcomes, including modification by child sex, using generalized estimating equations to account for clustering by ECHO cohort. RESULTS/UNASSIGNED:Compared with non-detectable concentrations, high exposure to bis(butoxyethyl) phosphate (BBOEP) was associated with higher autistic trait scores (adj-β 0.97, 95% confidence interval [CI]: 0.42, 1.52) and greater odds of autism diagnosis (adjusted odds ratio [adj-OR]: 1.27, 95% CI: 1.07, 1.50). Bis(1-chloro-2-propyl) phosphate (BCPP) showed associations with autistic trait scores (BCPP adj-β for high exposure vs. non-detect: 0.34, 95% CI: -0.46, 1.13; BCPP adj-β for moderate exposure vs. non-detect: 0.72, 95% CI: 0.24, 1.20). High exposure to bis(2-chloroethyl) phosphate (BCETP) was associated with lower odds of autism diagnosis (adj-OR: 0.76, 95% CI: 0.60, 0.95). Other OPEs showed no associations in adjusted models. Associations between BBOEP and higher autistic trait scores were stronger in males than females. DISCUSSION/UNASSIGNED:Prenatal exposure to OPEs, specifically BCPP and BBOEP, may be associated with higher risk of autism diagnosis and related traits in childhood. https://doi.org/10.1289/EHP16177.
PMID: 40499048
ISSN: 1552-9924
CID: 5869352

Prenatal Air Pollution Exposure and Autism Spectrum Disorder in the ECHO Consortium

Ghassabian, Akhgar; Dickerson, Aisha S; Wang, Yuyan; Braun, Joseph M; Bennett, Deborah H; Croen, Lisa A; LeWinn, Kaja Z; Burris, Heather H; Habre, Rima; Lyall, Kristen; Frazier, Jean A; Glass, Hannah C; Hooper, Stephen R; Joseph, Robert M; Karr, Catherine J; Schmidt, Rebecca J; Friedman, Chloe; Karagas, Margaret R; Stroustrup, Annemarie; Straughen, Jennifer K; Dunlop, Anne L; Ganiban, Jody M; Leve, Leslie D; Wright, Rosalind J; McEvoy, Cindy T; Hipwell, Alison E; Giardino, Angelo P; Santos, Hudson P; Krause, Hannah; Oken, Emily; Camargo, Carlos A; Oh, Jiwon; Loftus, Christine; O'Shea, T Michael; O'Connor, Thomas G; Szpiro, Adam; Volk, Heather E; ,
BACKGROUND/UNASSIGNED:The relationship between prenatal exposure to low-level air pollution and child autism spectrum disorder (ASD) is unclear. OBJECTIVE/UNASSIGNED:To examine associations of prenatal air pollution exposure with autism. METHODS/UNASSIGNED:quantiles) using quantile regression and with ASD diagnosis using logistic regression. Models were run within census divisions, and coefficients were pooled in a meta-analysis. RESULTS/UNASSIGNED:also was associated with ASD. DISCUSSION/UNASSIGNED:Associations with ASD outcomes were present even at low levels of air pollutants. https://doi.org/10.1289/EHP16675.
PMID: 40498638
ISSN: 1552-9924
CID: 5869322

Prenatal Smoking Exposures and Epigenome-wide Methylation in Newborn Blood

Hoang, Thanh T; Cosin-Tomas, Marta; Lee, Yunsung; Monasso, Giulietta; Xu, Zongli; Li, Sebastian Shaobo; Zeng, Xuehuo; Starling, Anne P; Reimann, Brigitte; Röder, Stefan; Zillich, Lea; Jima, Dereje D; Thio, Chris H L; Pesce, Giancarlo; Kersten, Elin T G; Breeze, Charles E; Burkholder, Adam B; Lee, Mikyeong; Ward, James M; Consortium, Bios; Alfano, Rossella; Deuschle, Michael; Duijts, Liesbeth; Ghassabian, Akhgar; Herrera, Laura-Concepció Gómez; Jaddoe, Vincent Wv; Motsinger-Reif, Alison A; Lie, Rolv T; Nawrot, Tim S; Page, Christian M; Send, Tabea S; Sharp, Gemma; Stein, Dan J; Streit, Fabian; Sunyer, Jordi; Wilcox, Allen J; Zar, Heather J; Koppelman, Gerard H; Annesi-Maesano, Isabella; Corpeleijn, Eva; Snieder, Harold; Hoyo, Cathrine; Hüls, Anke; Sirignano, Lea; Witt, Stephanie H; Herberth, Gunda; Plusquin, Michelle; Dabelea, Dana; Yeung, Edwina; Wiemels, Joseph L; Richmond, Rebecca C; Taylor, Jack A; Felix, Janine F; Håberg, Siri E; Bustamante, Mariona; London, Stephanie J
BACKGROUND/UNASSIGNED:Maternal sustained smoking during pregnancy is associated with thousands of differentially methylated CpGs in newborns, but impacts of other prenatal tobacco smoking exposures remain unclear. OBJECTIVE/UNASSIGNED:To identify differential DNA methylation in newborns from maternal sustained smoking and less studied prenatal smoking exposures (i.e., maternal exposure to secondhand smoke [SHS] exposure during pregnancy, maternal quitting before pregnancy, paternal smoking around conception, paternal quitting before pregnancy). METHODS/UNASSIGNED:We conducted a large meta-analysis of prenatal tobacco smoking exposures and epigenome-wide newborn blood DNA methylation through the Pregnancy And Childhood Epigenetics Consortium (PACE). Across 19 cohorts, 11,175 parent-newborn pairs contributed information on at least one prenatal smoking exposure, mostly from questionnaires. Maternal blood or urine cotinine measurements, available in a few studies, provided objective data on maternal SHS and smoking during pregnancy. Primary analyses used Illumina450K methylation data; secondary analyses in 5 cohorts examined CpGs unique to the EPIC array. RESULTS/UNASSIGNED:) was associated with paternal former smoking. Forty-one novel genes were identified using maternal cotinine measurements compared to questionnaire. In EPIC unique analyses (n=3,415), differential methylation was observed with maternal sustained smoking (211 CpGs), maternal SHS (5 CpGs), and paternal former smoking (4 CpGs). Smoking-associated CpGs in blood were strongly enriched for functional elements across multiple tissues. CONCLUSIONS/UNASSIGNED:Maternal sustained smoking has the largest impact on newborn DNA methylation, suggesting a strong influence of the intrauterine environment. We observed minimal impacts for less studied exposures including SHS, maternal former smoking and paternal smoking. https://doi.org/10.1289/EHP16303.
PMID: 40478623
ISSN: 1552-9924
CID: 5862822

Maternal polycystic ovarian syndrome and offspring psychopathology and neurodevelopment

Kahn, Linda G; Hipwell, Alison E; Charifson, Mia; Ling, Rui; Cajachagua-Torres, Kim N; Ghassabian, Akhgar
Polycystic ovarian syndrome (PCOS) is a common female endocrinologic condition that affects both the metabolic and reproductive systems and is the most frequent cause of anovulatory infertility. It is also associated with a range of psychiatric outcomes in individuals, including bulimia nervosa, schizophrenia, bipolar disorder, depression, anxiety, and personality disorders. At the same time, evidence suggests that hyperandrogenism, the characteristic trait of PCOS, may impair fetal neurodevelopment. Epidemiological studies have linked maternal PCOS with a variety of behavioral and psychiatric conditions in offspring including autism spectrum disorder and attention deficit hyperactivity disorder. In this review, we explore evidence for potential underlying biological mechanisms that might explain these observed associations, discuss the complex interplay between genetics and various environmental factors across generations, and highlight avenues for future research.
PMID: 40380372
ISSN: 1460-2350
CID: 5844872

Health impacts of exposure to synthetic chemicals in food

Muncke, Jane; Touvier, Mathilde; Trasande, Leonardo; Scheringer, Martin
Humans are widely exposed to synthetic chemicals, especially via food. The types of chemical contaminants in food (including food contact chemicals) are diverse, and many of these are known to be hazardous, with mounting evidence that some contribute to noncommunicable diseases. The increasing consumption of ultra-processed foods, which contain synthetic chemicals, also contributes to adverse health. If the chemical contamination of foods were better characterized, then this issue would likely receive more attention as an important opportunity for disease prevention. In this Review, we discuss types and sources of synthetic food contaminants, focusing on food contact chemicals and their presence in ultra-processed foods. We outline future research needs and highlight possible responses at different food system levels. A sustainable transition of the food system must address the health impacts of synthetic chemicals in food; we discuss existing solutions that do justice to the complexity of the issue while avoiding regrettable substitutions and rebound effects.
PMID: 40379996
ISSN: 1546-170x
CID: 5844862