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Ilam University of Medical Sciences

Is there any association between urinary metabolites of polycyclic aromatic hydrocarbons and thyroid hormone levels in children and adolescents?

Fri Mar 29 05:02:54 2024

(2018) Is there any association between urinary metabolites of polycyclic aromatic hydrocarbons and thyroid hormone levels in children and adolescents? Environmental Science and Pollution Research. pp. 1962-1968. ISSN 0944-1344

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Abstract

Considering the possible effects of polycyclic aromatic hydrocarbons (PAHs) on thyroid function, the current study aims to investigate the association of PAH urinary metabolites with the level of thyroid hormones in a sample of Iranian children and adolescents. This cross-sectional study was conducted from September 2015 to July 2016 in Isfahan, Iran. Participants were 150 students, aged 6-18 years, who were selected by multistage cluster random sampling from schools of Isfahan province. Blood and urine samples of participants were obtained for measurement of thyroid hormone levels (measured by immunoradiometric assay) and PAH urinary metabolites, including 1-hydroxynaphthalene, 2-hydroxynaphthalene, 9-hydroxyphenanthrene, and 1-hydroxypyrene. The association of serum thyroid-stimulating hormone (TSH) and PAH urinary metabolites was determined by correlation and regression analyses. Multivariate regression analysis revealed significant association between serum TSH and PAH urinary metabolites; this association remained significant after adjustment for gender and age. The corresponding figures were r = 0.85 for 1-naphthol, r = 0.86 for 2-naphthol, r = 0.87 for 1-hydroxypyrene, and r = 0.42 for 9-phenantrol, respectively, all p values < 0.001. The mean levels of 1-hydroxypyrene and 9-phenanthrol were higher in boys than those in girls (p < 0.05). The findings of this study indicated significant positive association between urinary PAH biomarkers and the TSH level in children and adolescents. It can be suggested that long-term exposure to PAHs might result in thyroid function impairment. The clinical implication of the current findings should be confirmed by future longitudinal studies.

Item Type: Article
Creators:
CreatorsEmail
Kelishadi, R.UNSPECIFIED
Sobhani, P.UNSPECIFIED
Poursafa, P.UNSPECIFIED
Amin, M. M.UNSPECIFIED
Ebrahimpour, K.UNSPECIFIED
Hovsepian, S.UNSPECIFIED
Mansourian, M.UNSPECIFIED
Najafi, R.UNSPECIFIED
Hashemipour, M.UNSPECIFIED
Keywords: Polycyclic aromatic hydrocarbons Thyroid hormone Children Adolescents united-states hydroxylated metabolites environmental exposure oxidative stress renal-function in-vitro biomarkers disease chemicals Environmental Sciences & Ecology
Divisions:
Page Range: pp. 1962-1968
Journal or Publication Title: Environmental Science and Pollution Research
Journal Index: ISI
Volume: 25
Number: 2
Identification Number: https://doi.org/10.1007/s11356-017-0577-y
ISSN: 0944-1344
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/188

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