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Wang N, Zhou Y, Fu C, Wang H, Huang P, Wang B, Su M, Jiang F, Fang H, Zhao Q, Chen Y, Jiang Q. Influence of Bisphenol A on Thyroid Volume and Structure Independent of Iodine in School Children. PLoS One 2015; 10:e0141248. [PMID: 26496713 PMCID: PMC4619836 DOI: 10.1371/journal.pone.0141248] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 10/05/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Although several studies have evaluated the relationship between bisphenol A (BPA) and thyroid functions, their results are not entirely consistent. Little is known about BPA in relation to thyroid volume and structure. METHODS We examined the association of BPA with thyroid volume and thyroid nodules using data from 718 Chinese children living in the East Coast of China in 2012. First morning urine samples were collected for the determination of urinary BPA, creatinine, and urinary iodine concentrations (UIC). Thyroid volume (TV) and nodules were assessed by thyroid ultrasonography. RESULTS The median of TV was 3.14ml. 459(63.9%) children took iodized salt at home and the median of UIC was 159μg/l. BPA was detected in 99.9% of the urine samples and the medians for boys and girls were 2.64 and 2.35μg/g creatinine, respectively. Of all participants 14.0% had thyroid nodules. Urinary BPA concentration was inversely associated with thyroid volume (β = -0.033, 95% CI: -0.053, -0.013) and the risk for multiple nodules (OR = 0.78; 95% CI: 0.63, 0.97). The associations above were similar for children who consumed iodized salt and those consumed non-iodized salt. CONCLUSIONS The data suggest that BPA may be one of the influencing factors for TV and thyroid nodules and its effects are independent of iodine nutrition status in children.
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Affiliation(s)
- Na Wang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Ying Zhou
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Chaowei Fu
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Hexing Wang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Peixin Huang
- Department of Chronic Disease Control and Prevention, Haimen City Center for Disease Control and Prevention, Haimen, China
| | - Bin Wang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Meifang Su
- Department of Chronic Disease Control and Prevention, Yuhuan County Center of Disease Control and Prevention, Taizhou, China
| | - Feng Jiang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Hong Fang
- Department of Chronic Disease Control and Prevention, Shanghai Minhang Center for Disease Control and Prevention, Shanghai, China
| | - Qi Zhao
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
- * E-mail:
| | - Yue Chen
- School of Epidemiology, Public Health and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Qingwu Jiang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
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