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. 2011 Aug;119(8):1176-81.
doi: 10.1289/ehp.1002705. Epub 2011 Apr 12.

Polycyclic aromatic hydrocarbons-aromatic DNA adducts in cord blood and behavior scores in New York city children

Frederica P Perera  1 , Shuang Wang, Julia Vishnevetsky, Bingzhi Zhang, Kathleen J Cole, Deliang Tang, Virginia Rauh, David H Phillips
Affiliations

Polycyclic aromatic hydrocarbons-aromatic DNA adducts in cord blood and behavior scores in New York city children

Frederica P Perera et al. Environ Health Perspect. 2011 Aug.

Abstract

Background: Airborne polycyclic aromatic hydrocarbons (PAH) are widespread urban pollutants that can bind to DNA to form PAH-DNA adducts. Prenatal PAH exposure measured by personal monitoring has been linked to cognitive deficits in childhood in a prospective study conducted by the Columbia Center for Children's Environmental Health.

Objectives: We measured PAH-DNA and other bulky aromatic adducts in umbilical cord white blood cells using the 32P-postlabeling assay to determine the association between this molecular dosimeter and behavioral/attention problems in childhood.

Methods: Children born to nonsmoking African-American and Dominican women residing in New York City (NYC) were followed from in utero to 7-8 years of age. At two time points before 8 years of age (mean ages, 4.8 years and 7 years), child behavior was assessed using the Child Behavior Checklist (CBCL). To estimate and test the association between adducts and behavioral outcomes, both CBCL continuous raw scores and dichotomized T-scores were analyzed.

Results: Higher cord adducts were associated with higher symptom scores of Anxious/Depressed at 4.8 years and Attention Problems at 4.8 and 7 years, and with Diagnostic and Statistical Manual of Mental Disorders, 4th edition-oriented Anxiety Problems at 4.8 years.

Conclusions: These results suggest that PAH exposure, measured by DNA adducts, may adversely affect child behavior, potentially affecting school performance.

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Conflict of interest statement

The authors declare that they have no actual or potential competing financial interests.

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