2016
Indoor microbial communities: Influence on asthma severity in atopic and nonatopic children
Dannemiller KC, Gent JF, Leaderer BP, Peccia J. Indoor microbial communities: Influence on asthma severity in atopic and nonatopic children. Journal Of Allergy And Clinical Immunology 2016, 138: 76-83.e1. PMID: 26851966, PMCID: PMC5357886, DOI: 10.1016/j.jaci.2015.11.027.Peer-Reviewed Original ResearchConceptsAsthma severityAtopic statusAtopic childrenNonatopic childrenLogistic regressionMicrobial exposureChildhood asthma severityCohort of childrenAsthmatic childrenAllergenic fungal speciesTotal fungal concentrationsSeverityHouse dustCryptococcus speciesExposure metricsChildrenT-testCohortQuantitative PCRFungal concentrationsAssociationExposureNext-generation DNA sequencingStatusRegression
2015
Distributions of heavy metals in maternal and cord blood and the association with infant birth weight in China.
Hu X, Zheng T, Cheng Y, Holford T, Lin S, Leaderer B, Qiu J, Bassig BA, Shi K, Zhang Y, Niu J, Zhu Y, Li Y, Guo H, Chen Q, Zhang J, Xu S, Jin Y. Distributions of heavy metals in maternal and cord blood and the association with infant birth weight in China. The Journal Of Reproductive Medicine 2015, 60: 21-9. PMID: 25745747, PMCID: PMC4961246.Peer-Reviewed Original ResearchConceptsInfant birth weightCord blood samplesBirth weightCord bloodBlood samplesChinese pregnant womenMother-infant pairsBirth outcomesSerum levelsPregnant womenPrenatal exposureSerum concentrationsChinese infantsMultiple linear regression analysisLarger sample sizeLinear regression analysisSignificant associationChinese womenPilot studyBloodRegression analysisNewbornsAssociationWomenHigh concentrations
2014
Asthma medication use during pregnancy, wheeze and estimated exposure to ambient nitrogen dioxide
Gent JF, Kezik JM, Hill ME, McKay LA, Holford TR, Leaderer BP, Bracken MB. Asthma medication use during pregnancy, wheeze and estimated exposure to ambient nitrogen dioxide. European Respiratory Journal 2014, 45: 538-540. PMID: 25537555, PMCID: PMC4331059, DOI: 10.1183/09031936.00161514.Peer-Reviewed Original ResearchConceptsAsthma medication useMedication usePregnant womenRisk of wheezePoor pulmonary functionAdverse health outcomesPregnant asthmaticsAsthma exacerbationsAsthma medicationsPerinatal complicationsPulmonary functionFetal growthHealth outcomesPregnancyNO2 exposureWheezeAsthmaMedicationsWomenAmbient nitrogen dioxideMothersMinimal effectExposureAsthmaticsExacerbation
2012
An environmental epigenetic study of ADRB2 5′‐UTR methylation and childhood asthma severity
Fu A, Leaderer BP, Gent JF, Leaderer D, Zhu Y. An environmental epigenetic study of ADRB2 5′‐UTR methylation and childhood asthma severity. Clinical & Experimental Allergy 2012, 42: 1575-1581. PMID: 22862293, PMCID: PMC3673701, DOI: 10.1111/j.1365-2222.2012.04055.x.Peer-Reviewed Original ResearchConceptsChildhood asthma severityAsthma severitySevere asthmaSignificant associationSevere childhood asthmaBeta-agonist treatmentBeta-2 adrenergic receptorsImportant environmental exposuresAsthma exacerbationsAsthma medicationsMild asthmaChildhood asthmaSurrogate biomarkerMethylation-specific PCRPotential joint effectsClinical relevanceAdrenergic receptorsAsthmaADRB2SeverityEnvironmental exposuresIndoor exposureChildrenAssociationBlood
1996
Asthma among Puerto Rican Hispanics: a multi-ethnic comparison study of risk factors.
Beckett W, Belanger K, Gent J, Holford T, Leaderer B. Asthma among Puerto Rican Hispanics: a multi-ethnic comparison study of risk factors. American Journal Of Respiratory And Critical Care Medicine 1996, 154: 894-899. PMID: 8887582, DOI: 10.1164/ajrccm.154.4.8887582.Peer-Reviewed Original ResearchConceptsRisk factorsPuerto Rican HispanicsSocioeconomic statusHispanic ethnicityHispanic mothersEnvironmental tobacco smoke exposureIndependent risk factorPhysician-diagnosed asthmaPrevalence of asthmaTobacco smoke exposureStrong risk factorAfrican American ethnicityEnvironmental risk factorsYr of ageLow socioeconomic statusStudy of asthmaNon-Hispanic whitesMo of ageActive smokingAsthmatic childrenSmoke exposureChildhood asthmaCigarette smokersMaternal ageMaternal history
1995
Effect of nitrous acid on lung function in asthmatics: a chamber study.
Beckett W, Russi M, Haber A, Rivkin R, Sullivan J, Tameroglu Z, Mohsenin V, Leaderer B. Effect of nitrous acid on lung function in asthmatics: a chamber study. Environmental Health Perspectives 1995, 103: 372-375. PMID: 7607138, PMCID: PMC1519093, DOI: 10.1289/ehp.95103372.Peer-Reviewed Original ResearchConceptsSignificant airflow obstructionChamber exposure studiesFiltered room airModerate cycle exerciseNitrous acid exposureIndoor nitrogen dioxideMucous membrane symptomsDuration of exposureAirflow obstructionLung functionIrritant symptomsVital capacityCycle exerciseLung mechanicsRespiratory effectsAcid exposureRespiratory parametersAdult subjectsRoom airHealth effectsSymptomsSignificant decreaseAsthmaticsExposure studiesCommon indoor air pollutants
1994
Reduction of Environmental Tobacco Smoke Exposure Among Asthmatic Children: A Controlled Trial
Hovell M, Meltzer S, Zakarian J, Wahlgren D, Emerson J, Hofstetter C, Leaderer B, Meltzer E, Zeiger R, O’Connor R, Mulvihill M, Atkins C. Reduction of Environmental Tobacco Smoke Exposure Among Asthmatic Children: A Controlled Trial. CHEST Journal 1994, 106: 440-446. PMID: 7774317, DOI: 10.1378/chest.106.2.440.Peer-Reviewed Original ResearchConceptsTreatment control groupEnvironmental tobacco smokeETS exposureControl groupAsthma symptomsChildren's ETS exposureChildren's asthma symptomsExperimental groupMonitoring control groupBehavioral medicine programRepeated-measures analysisAllergy clinicClinical trialsOutcome measuresTobacco smokeExposure reportsChildren's exposureMonitoring groupCounseling sessionsPercent decreaseMedicine programsCounseling groupDaily numberExposureCigarettes