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Publication Detail

Title: Early life and adolescent arsenic exposure from drinking water and blood pressure in adolescence.

Authors: Chen, Yu; Wu, Fen; Liu, Xinhua; Parvez, Faruque; LoIacono, Nancy J; Gibson, Elizabeth A; Kioumourtzoglou, Marianthi-Anna; Levy, Diane; Shahriar, Hasan; Uddin, Mohammed Nasir; Islam, Taruqul; Lomax, Angela; Saxena, Roheeni; Sanchez, Tiffany; Santiago, David; Ellis, Tyler; Ahsan, Habibul; Wasserman, Gail A; Graziano, Joseph H

Published In Environ Res, (2019 11)

Abstract: Evidence of the association between inorganic arsenic (As) exposure, especially early-life exposure, and blood pressure (BP) in adolescence is limited. We examined the association of As exposure during early childhood, childhood, and adolescence with BP in adolescence.We conducted a cross-sectional study of 726 adolescents aged 14-17 (mean 14.75) years whose mothers were participants in the Bangladesh Health Effects of Arsenic Longitudinal Study (HEALS). Adolescents' BP was measured at the time of their recruitment between December 2012 and December 2016. We considered maternal urinary As (UAs), repeatedly measured during childhood, as proxy measures of early childhood (<5 years old, A1) and childhood (5-12 years old, A2) exposure. Adolescents' current UAs was collected at the time of recruitment (14-17 years of age, A3).Every doubling of UAs at A3 and maternal UAs at A1 was positively associated with a difference of 0.7-mmHg (95% confidence interval [CI]: 0.1, 1.3) and a 0.7-mmHg (95% CI: 0.05, 1.4) in SBP, respectively. These associations were stronger in adolescents with a BMI above the median (17.7 kg/m2) than those with a BMI below the median (P for interaction = 0.03 and 0.03, respectively). There was no significant association between any of the exposure measures and DBP. The Weighted Quantile Sum (WQS) regression confirmed that adolescents' UAs at A3 and maternal UAs at A1 contributed the most to the overall effect of As exposure at three life stages on SBP. Mixture analyses using Bayesian Kernel Machine Regression identified UAs at A3 as a significant contributor to SBP and DBP independent of other concurrent blood levels of cadmium, lead, manganese, and selenium.Our findings suggest an association of current exposure and early childhood exposure to As with higher BP in adolescents, which may be exacerbated by higher BMI at adolescence.

PubMed ID: 31520830 Exiting the NIEHS site

MeSH Terms: Adolescent; Arsenic/analysis; Arsenic/metabolism*; Bangladesh; Bayes Theorem; Blood Pressure/physiology*; Child; Child, Preschool; Cross-Sectional Studies; Drinking Water/chemistry*; Environmental Exposure/statistics & numerical data*; Female; Humans; Longitudinal Studies; Male

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