Associations of fluoride exposure with sex steroid hormones among US children and adolescents, NHANES 2013-2016

被引:33
作者
Bai, Rongpan [1 ]
Huang, Yun [2 ,3 ]
Wang, Fang [4 ]
Guo, Jing [1 ]
机构
[1] Zhejiang Univ, Inst Environm Hlth, Dept Publ Hlth, Sch Med, Hangzhou, Peoples R China
[2] Zhejiang Univ, Womens Hosp, Key Lab Reprod Genet, Minist Educ,Sch Med, Hangzhou, Peoples R China
[3] Zhejiang Univ, Womens Hosp, Dept Reprod Endocrinol, Sch Med, Hangzhou, Peoples R China
[4] Tongji Univ, Shanghai East Hosp, Dept Obstet & Gynecol, Sch Med, Shanghai, Peoples R China
基金
中国国家自然科学基金;
关键词
Fluoride; Sex steroid hormones; Children; Adolescents; NHANES; REPRODUCTIVE HORMONES; SERUM TESTOSTERONE; BINDING GLOBULIN; SODIUM-FLUORIDE; ENVIRONMENT; FLUOROSIS; WATER; RISK;
D O I
10.1016/j.envpol.2020.114003
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Fluoride mediated disruption of sex steroid hormones has been demonstrated in animals. However, evidence from humans was limited and contradictory, especially for children and adolescents. Based on data of the National Health and Nutrition Survey (NHANES) 2013-2016, a total of 3392 subjects aged 6 -19 years were analyzed in this cross-sectional study. Both plasma and water fluoride levels were quantified electrometrically using the ion-specific electrode. Sex steroid hormones of total testosterone, estradiol and sex hormone-binding globulin (SHBG) were tested in serum. Percent changes and 95% confidence intervals (Cis) in sex steroid hormones associated with tertiles of fluoride levels (setting the first as reference) were estimated using adjusted linear regression models by stratification of gender and age. Compared with subjects at the first tertile of plasma fluoride, percent changes (95% CIs) in testosterone were -8.08% (-17.36%, 2.25%) and -21.65% (-30.44%, -11.75%) for the second and third tertiles, respectively (P- trend <0.001). Male adolescents at the third tertile of plasma fluoride had decreased levels of testosterone (percent change = -21.09%, 95% CIs = -36.61% to -1.77%). Similar inverse associations were also found when investigating the relationships between plasma fluoride and estradiol. Besides, the data indicated decreased levels of SHBG associated with water and plasma fluoride among the male adolescents (percent change of the third tertile = -9.39%, 95% CIs = -17.25% to -0.78%) and female children (percent change of the second tertile = -10.78%, 95% CIs = -17.55% to -3.45%), respectively. The data indicated gender- and age-specific inverse associations of fluoride in plasma and water with sex steroid hormones of total testosterone, estradiol and SHBG in U.S. children and adolescents. Prospective cohort studies are warranted to confirm the causality. (C) 2020 Elsevier Ltd. All rights reserved.
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页数:8
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