2020
Maternal blood metal and metalloid concentrations in association with birth outcomes in Northern Puerto Rico
Ashrap P, Watkins D, Mukherjee B, Boss J, Richards M, Rosario Z, Vélez-Vega C, Alshawabkeh A, Cordero J, Meeker J. Maternal blood metal and metalloid concentrations in association with birth outcomes in Northern Puerto Rico. Environment International 2020, 138: 105606. PMID: 32179314, PMCID: PMC7198231, DOI: 10.1016/j.envint.2020.105606.Peer-Reviewed Original ResearchConceptsBayesian kernel machine regressionShorter gestational agePreterm birthGestational ageEnvironmental risk scoreBirth outcomesMetal concentrationsNon-essential metal(loid)sHigher risk of preterm birthRisk of preterm birthLow-level prenatal lead exposureInterquartile rangeOdds of preterm birthAssociated with higher risk of preterm birthRisk scoreEffects of metalsPredictors of birth outcomesAssociated with birth outcomesBayesian kernel machine regression modelsBirthweight z-scoreAssociated with adverse birth outcomesAssociated with higher riskAdverse birth outcomesKernel machine regressionPuerto Rico Testsite
2019
Urinary concentrations of phenols in association with biomarkers of oxidative stress in pregnancy: Assessment of effects independent of phthalates
Ferguson K, Lan Z, Yu Y, Mukherjee B, McElrath T, Meeker J. Urinary concentrations of phenols in association with biomarkers of oxidative stress in pregnancy: Assessment of effects independent of phthalates. Environment International 2019, 131: 104903. PMID: 31288179, PMCID: PMC6728185, DOI: 10.1016/j.envint.2019.104903.Peer-Reviewed Original ResearchConceptsUrinary phthalate metabolitesOxidative stress biomarkersNon-null associationsPhthalate metabolitesBiomarkers of oxidative stressInterquartile rangeBenzophenone-3Associated with increasesOutcome biomarkersIncreased maternal oxidative stressStress biomarkersExposure to environmental phenolsOxidative stressReduced fetal growthUrinary oxidative stress biomarkersMaternal oxidative stressEffect estimatesAdaptive elastic net modelStudy populationPreterm birthFetal growthConcentration of phenolUrinary phenolPregnancyUrinary concentrations
2018
Associations between repeated ultrasound measures of fetal growth and biomarkers of maternal oxidative stress and inflammation in pregnancy
Ferguson K, Kamai E, Cantonwine D, Mukherjee B, Meeker J, McElrath T. Associations between repeated ultrasound measures of fetal growth and biomarkers of maternal oxidative stress and inflammation in pregnancy. American Journal Of Reproductive Immunology 2018, 80: e13017. PMID: 29984454, PMCID: PMC6160349, DOI: 10.1111/aji.13017.Peer-Reviewed Original ResearchConceptsAssociated with reduced fetal growthFetal growthAssociated with poorer childAdult health outcomesOxidative stress markersBirth cohort studyInterquartile rangeAssociated with head circumferenceRepeated-measures modelFetal weight z-scoreAssociated with fetal weightOxidative stressHealth outcomesStandard deviation decreaseWeight z-scoreStress markersSecondary analysisMaternal oxidative stressCohort studyZ-scoreFetal weightMaternal inflammationDeviation decreasePreterm birthHead circumferenceAssociations between mixtures of urinary phthalate metabolites with gestational age at delivery: a time to event analysis using summative phthalate risk scores
Boss J, Zhai J, Aung M, Ferguson K, Johns L, McElrath T, Meeker J, Mukherjee B. Associations between mixtures of urinary phthalate metabolites with gestational age at delivery: a time to event analysis using summative phthalate risk scores. Environmental Health 2018, 17: 56. PMID: 29925380, PMCID: PMC6011420, DOI: 10.1186/s12940-018-0400-3.Peer-Reviewed Original ResearchConceptsMono-2-ethyl-5-carboxypentyl phthalateEnvironmental risk scoreGestational ageHazard ratioPreterm birthRisk scoreInterquartile rangeIncreased odds of preterm birthCases of preterm birthOdds of preterm birthUrinary phthalate metabolite concentrationsPhthalate metabolite concentrationsUrinary phthalate metabolitesPhthalate metabolite measurementsCox proportional hazards modelsInterquartile range changeTime to deliveryProportional hazards modelLongitudinal birth cohortSingle-pollutant analysesSignificant public health concernUrinary metabolite concentrationsBackgroundPreterm birthPregnant womenExposure to phthalates
2017
Urinary BPA and Phthalate Metabolite Concentrations and Plasma Vitamin D Levels in Pregnant Women: A Repeated Measures Analysis
Johns L, Ferguson K, Cantonwine D, McElrath T, Mukherjee B, Meeker J. Urinary BPA and Phthalate Metabolite Concentrations and Plasma Vitamin D Levels in Pregnant Women: A Repeated Measures Analysis. Environmental Health Perspectives 2017, 125: 087026. PMID: 28934718, PMCID: PMC5783673, DOI: 10.1289/ehp1178.Peer-Reviewed Original ResearchConceptsCohort of pregnant womenMono-3-carboxypropyl phthalateVitamin D levelsPregnant womenD levelsNested case-control study of preterm birthMeasures of urinary phthalate metabolitesProspective cohort of pregnant womenOdds of vitamin D deficiencyCase-control study of preterm birthDi(2-ethylhexyl) phthalate metabolitesInverse associationStudy of preterm birthInterquartile rangePlasma vitamin D levelsCirculating total 25(OH)DNested case-control studyMetabolites of di(2-ethylhexyl) phthalateVitamin D deficiencyDi(2-ethylhexyl) phthalatePhthalate metabolite concentrationsUrinary phthalate metabolitesUrinary bisphenol AProspective birth cohortPreterm birthThyroid hormone parameters during pregnancy in relation to urinary bisphenol A concentrations: A repeated measures study
Aung M, Johns L, Ferguson K, Mukherjee B, McElrath T, Meeker J. Thyroid hormone parameters during pregnancy in relation to urinary bisphenol A concentrations: A repeated measures study. Environment International 2017, 104: 33-40. PMID: 28410473, PMCID: PMC5497503, DOI: 10.1016/j.envint.2017.04.001.Peer-Reviewed Original ResearchConceptsThyroid hormone parametersHormonal parametersStudy visitsCases of preterm birthInterquartile rangeSupply of thyroid hormonesNormal birth outcomesUrinary bisphenol A concentrationsNested case-control studyThyrotropin (TSHContext of pregnancyUrinary BPA concentrationsUrinary bisphenol ACase-control studyIn vitro studiesPreterm birthTSH levelsMultivariate linear regression modelPregnant womenFetal developmentFree T4Visit 3Measures analysisBirth outcomesPregnancy