國家衛生研究院 NHRI:Item 3990099045/11979
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    题名: A benchmark dose study of prenatal exposure to di(2-ethylhexyl) phthalate and behavioral problems in children
    作者: Chen, CC;Wang, YH;Chen, WJ;Hsiung, CA;Leon Guo, YL;Julie Wang, SL
    贡献者: Institute of Population Health Sciences;National Institute of Environmental Health Sciences
    摘要: INTRODUCTION: Prenatal exposure to di(2-ethylhexyl) phthalate (DEHP) has been reported to be associated with adverse effects on neurodevelopment that yield behavior syndromes in young children with an estimated median exposure lower than the currently recommended tolerable daily intake (TDI) and reference dose (RfD). OBJECTIVES: Our aim was to derive the benchmark dose for prenatal exposure to DEHP for the neurodevelopmental health in children. METHODS: A total of 122 mother-child pairs from the Taiwan Maternal and Infant Cohort Study were analyzed for the dose-response relationship between maternal exposure to DEHP and children's behavioral syndromes evaluated at 8 years (n=122, 2009), 11 years (n=96, 2012), and 14 years (n=78, 2015) of age. We employed a multivariate regression model to assess the statistical associations between the estimated maternal average daily intake of DEHP and child's individual CBCL scores for boys and girls at each separate age, followed by a mixed model for all the children across three ages accounting for individual variations. We then employed structural equation models by combining the children's specific behavioral problem scores at different ages and obtained a simulated overall latent score in relation to maternal exposure. Based on the established dose-response relationship, we derived the benchmark dose (BMD) and the lower limit (BMDL). RESULTS: Associations of maternal DEHP exposure (median 4.54mug/kg_bw/day) with the Child Behavior Checklist (CBCL) scores were all significant, except for somatic complaints, adjusting for child's age, gender, IQ, and family income. The BMDL, given a benchmark response of 0.10 (0.05) and a background response of 0.05, was 6.01 (2.16) mug/kg_bw/dayfor an integrated CBCL score. CONCLUSIONS: The current TDI (RfD) of 50 (20) mug/kg_bw/day for DEHP might not protect pregnant women for their children from behavioral problems. There remains the lack of comparable toxicological data. Further investigations are needed.
    日期: 2019-07
    關聯: International Journal of Hygiene and Environmental Health.2019 Jul.;222(6):971-980.
    Link to: http://dx.doi.org/10.1016/j.ijheh.2019.06.002
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1438-4639&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000516828300007
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85067284408
    显示于类别:[陳主智] 期刊論文
    [熊昭] 期刊論文
    [王淑麗] 期刊論文
    [郭育良] 期刊論文

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