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Li L, Guo Y, Ma S, Wen H, Li Y, Qiao J. Association between exposure to per- and perfluoroalkyl substances (PFAS) and reproductive hormones in human: A systematic review and meta-analysis. ENVIRONMENTAL RESEARCH 2024; 241:117553. [PMID: 37931739 DOI: 10.1016/j.envres.2023.117553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Per- and polyfluoroalkyl substances (PFAS) is persistent endocrine disrupting chemicals. Previous evidence suggests that exposure to PFAS is associated with reproductive hormone levels, but the results of relevant studies are inconsistent. The objective of our study is to determine the association between exposure to PFAS and reproductive hormone levels in gender-specific general population. METHOD Based on scientific search strategies, we systematically searched PubMed, Web of Science, Embase, Medline, and Scopus to obtain the eligible studies published before January 21, 2023. The quality of the included articles was assessed using the Office of Health Assessment and Translation (OHAT) Risk of Bias tool. We combined the β coefficient and 95% confidence intervals (CI) using Stata.17 with random-effect model or fixed-effect model. We also performed subgroup analysis, sensitivity analysis, and Begger's and Egger's tests. RESULTS Eleven studies involving 7714 participants were included. Meta-analysis showed that PFHxS exposure was positively associated with estradiol (E2) levels in female [β = 0.030, 95% CI: (0.013, 0.046), P = 0.000]. A negative association was found between PFOA [β = -0.012, 95% CI: (-0.023, -0.002), P = 0.017] and PFOS [β = -0.011; 95% CI: (-0.021, -0.000), P = 0.042] exposure with male testosterone (TT) levels. In the subgroup analysis, there were stronger associations in children than in adults. And the high heterogeneity was mainly due to the cross-sectional studies. Publication bias was not found in most of the analyses. CONCLUSION Our study showed that PFAS exposure was significantly associated with reproductive hormone levels. Further related studies are needed to identify the association and potential mechanism in the future.
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Affiliation(s)
- Ling Li
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Yingkun Guo
- School of Nursing, Weifang Medical University, Weifang, 261053, China
| | - Shuai Ma
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Hui Wen
- School of Nursing, Weifang Medical University, Weifang, 261053, China
| | - Yupei Li
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, China
| | - Jianhong Qiao
- School of Nursing and Rehabilitation, Shandong University, Jinan, 250012, China; The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China.
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Liu Y, Calafat AM, Chen A, Lanphear BP, Jones NHY, Cecil KM, Rose SR, Yolton K, Buckley JP, Braun JM. Associations of prenatal and postnatal exposure to perfluoroalkyl substances with pubertal development and reproductive hormones in females and males: The HOME study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 890:164353. [PMID: 37225096 PMCID: PMC10330798 DOI: 10.1016/j.scitotenv.2023.164353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/18/2023] [Accepted: 05/18/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND Prenatal and childhood exposure to per- and polyfluoroalkyl substances (PFAS) may be associated with lower reproductive hormones and later puberty, but epidemiological studies evaluating these associations are scarce. OBJECTIVES We examined associations of PFAS concentrations assessed from pregnancy to adolescence with pubertal development and reproductive hormones at age 12 years. METHODS We studied 200 mother-child pairs from the HOME Study in Cincinnati, OH (enrolled: 2003-2006). We quantified serum concentrations of perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS), perfluorononanoate (PFNA), and perfluorohexane sulfonate (PFHxS) in pregnant women and their children at age 3, 8 and 12 years. At age 12 years, children self-assessed pubertal development using Tanner staging of pubic hair growth (males and females) and breast growth (females), and age at menarche. We quantified serum concentrations of dehydroepiandrosterone sulfate, luteinizing hormone, and follicle-stimulating hormone in both sexes; estradiol in females; testosterone in males. We estimated associations of PFAS with pubertal outcomes and reproductive hormones using a combination of ordinal regression, Cox proportional-hazard regression, and linear regression. Quantile-based g-computation was used for PFAS mixture. RESULTS In females, adolescent PFAS concentrations and their mixture were associated with later pubic hair growth, breast maturation, and age at menarche, but there was no pattern for prenatal or other postnatal concentrations. For instance, in females, each doubling in adolescent PFAS concentrations was associated with 79 % (PFOA), 63 % (PFOS), 56 % (PFNA), and 47 % (PFHxS) lower odds of attaining a higher stage for breast growth. In addition, adolescent PFAS concentrations were consistently associated with lower estradiol concentrations in females. No pattern was observed for associations of PFAS concentrations with pubic hair growth or reproductive hormones in males. CONCLUSIONS We observed associations between PFAS concentrations in adolescence and later pubertal development in females, but this could be due to reverse causation induced by excretion of PFAS through menstrual fluid.
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Affiliation(s)
- Yun Liu
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA.
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Aimin Chen
- Department of Biostatics, Epidemiology & Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Bruce P Lanphear
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Nana-Hawa Yayah Jones
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kim M Cecil
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Susan R Rose
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kimberly Yolton
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jessie P Buckley
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Joseph M Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
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Pinney SM, Fassler CS, Windham GC, Herrick RL, Xie C, Kushi LH, Biro FM. Exposure to Perfluoroalkyl Substances and Associations with Pubertal Onset and Serum Reproductive Hormones in a Longitudinal Study of Young Girls in Greater Cincinnati and the San Francisco Bay Area. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:97009. [PMID: 37751325 PMCID: PMC10521915 DOI: 10.1289/ehp11811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/07/2023] [Accepted: 08/14/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Per- and polyfluoroalkyl substances (PFAS), endocrine disrupting chemicals with worldwide exposure, cause changes in mammary gland development in rodents. A few human studies report delay in pubertal events with increasing perfluorooctanoic acid (PFOA) exposure, but to our knowledge none have examined reproductive hormone levels at thelarche. METHODS In a cohort of Greater Cincinnati (GC) and San Francisco Bay Area (SFBA) girls recruited at 6-8 years of age, clinical examinations were conducted annually or semiannually with sequential Tanner staging. PFAS concentrations were measured in the first serum sample of 704 girls. In 304 GC girls, estradiol (E 2 ), estrone (E 1 ), testosterone (T), and dihydroepiandrosterone sulfate (DHEAS) were measured in serum at four time points around puberty. Relationships between PFAS and age at thelarche, pubarche, and menarche were analyzed using survival and structural equation models. The association between PFAS and reproductive hormones was assessed using linear regression models. RESULTS Median PFOA serum concentrations in GC (N = 353 , 7.3 ng / mL ) and the SFBA (N = 351 , 5.8 ng / mL ) were higher than in the U.S. POPULATION In multivariable Cox proportional hazard models [adjusted for race, body mass index (BMI)], increasing serum log-transformed PFOA was associated with a delay in pubarche [hazard ratio ( HR ) = 0.83 ; 95% CI: 0.70, 0.99] and menarche (HR = 0.04 ; 95% CI: 0.01, 0.25). Structural equation models indicated a triangular relationship between PFOA, BMI percentile, and the age at the pubertal milestone. Increased PFOA had a statistically significant direct effect of delay on all three milestones, as did BMI. Perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDeA), and 2-(N -methyl-perfluorooctane sulfonamido) acetic acid (Me-PFOSA-AcOH) also were associated with later thelarche, and Me-PFOSA-AcOH also with later pubarche. PFOA was inversely associated with DHEAS (p < 0.01 ), E 1 (p = 0.04 ), and T (p = 0.03 ) concentrations at 6 months prior to puberty. CONCLUSIONS PFAS may delay pubertal onset through the intervening effects on BMI and reproductive hormones. The decreases in DHEAS and E 1 associated with PFOA represent biological biomarkers of effect consistent with the delay in onset of puberty. https://doi.org/10.1289/EHP11811.
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Affiliation(s)
- Susan M. Pinney
- Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Cecily S. Fassler
- Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Gayle C. Windham
- California Department of Public Health, Richmond, California, USA
| | - Robert L. Herrick
- Health Division, Sutter County Human Services, Yuba City, California, USA
| | - Changchun Xie
- Department of Environmental and Public Health Sciences, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Frank M. Biro
- Division of Adolescent Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Wang T, Xu H, Guo Y, Li Z, Ye H, Wu L, Guo Y, Wang D. Perfluorodecanoic acid promotes adipogenesis via NLRP3 inflammasome-mediated pathway in HepG2 and 3T3-L1 cells. Food Chem Toxicol 2022; 171:113520. [PMID: 36423729 DOI: 10.1016/j.fct.2022.113520] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/17/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022]
Abstract
Perfluorodecanoic acid (PFDA) is a toxic persistent pollutant that is extensively used in food applications, such as food packaging and cookware. Emerging evidence indicates that PFDA exposure were associated with higher plasma triglyceride concentration in human. In contrast, it is unknown how PFDA might affect adipogenesis. To explore the effects and underlying mechanisms of PFDA on lipid metabolism in this study, both HepG2 cells and 3T3-L1 differentiation model were used. The results showed that PFDA promoted the cellular triglyceride accumulation and triglyceride content in concentration-dependent manners. Furthermore, PFDA activated the NLRP3 inflammasome, which is crucial for the induction of lipogenic genes expression including fatty acid synthase (FAS), hydroxymethylglutaryl coenzyme A synthase (HMGCS), and stearoyl-CoA desaturase 1 (SCD1). Additionally, PFDA-induced adipogenesis was abolished by caspase-1 inhibitor and siNLRP3 in HepG2 cells. Moreover, after PFDA treatment, the expression of SREBP1, an important regulator of lipid metabolism, was increased, as well as its target genes, and PFDA-induced SREBP1 enhanced expression can be abolished by caspase-1 inhibitor and siNLRP3 as well. Together, these results provide to understanding of the potential health implications of exposure to PFDA on lipid accumulation, and suggest that PFDA can promote adipogenesis via an NLRP3 inflammasome-mediated SREBP1 pathway.
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Affiliation(s)
- Taotao Wang
- Department of Clinical Nutrition, Affiliated Hospital of Jiangsu University, 212000, Zhenjiang, China
| | - Hong Xu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Yu Guo
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Zhanming Li
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Hua Ye
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China
| | - Liang Wu
- School of Medicine, Jiangsu University, 212013, Zhenjiang, China
| | - Yuanxin Guo
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China.
| | - Dongxu Wang
- School of Grain Science and Technology, Jiangsu University of Science and Technology, 212100, Zhenjiang, China.
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Jensen RC, Glintborg D, Timmermann CAG, Nielsen F, Boye H, Madsen JB, Bilenberg N, Grandjean P, Jensen TK, Andersen MS. Higher free thyroxine associated with PFAS exposure in first trimester. The Odense Child Cohort. ENVIRONMENTAL RESEARCH 2022; 212:113492. [PMID: 35597289 DOI: 10.1016/j.envres.2022.113492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/18/2022] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Perfluoroalkyl substances (PFAS) are endocrine disrupting chemicals with elimination half-lives ranging from four to eight years. Experimental studies found PFAS able to interfere with thyroid hormone-binding proteins. During the first 20 weeks of gestation (GW), the fetus is reliant on placental transfer of maternal thyroid hormones, mainly free thyroxine (FT4). However, previous studies investigating associations between exposure to PFAS and thyroid hormone status mainly focused on blood samples from late pregnancy or umbilical cord with mixed findings. OBJECTIVES To investigate associations between serum-PFAS concentrations and thyroid hormone status in early pregnancy as reflected by FT4 and thyroid-stimulating hormone (TSH). METHODS In the Odense Child Cohort, a single-center study, we measured maternal pregnancy serum concentrations of five PFAS: perfluorohexane sulfonic acid (PFHxS), perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA); and FT4 and TSH in 1048 pregnant women at median GW 12 (25th, 75th percentile: 10, 15). Multivariate linear regression models were performed to estimate associations between PFAS exposure and thyroid hormone status. RESULTS A doubling in PFOS, PFOA, and PFNA concentrations was associated with an increment in FT4 concentration by 1.85% (95% CI: 0.66%, 3.05%), 1.29% (95% CI: 0.21%, 2.39%), and 1.70% (95% CI: 0.48%, 2.94%), respectively, in adjusted analyses. A statistically significant dose-response relationship was observed across exposure quartiles for PFOS, PFOA, and PFNA in the association with FT4. No association was found between concentrations of PFAS and TSH in adjusted analyses. CONCLUSION Exposure to PFOS, PFOA, and PFNA was associated with higher FT4 concentrations in women during early pregnancy. The potential clinical implications of these findings remain to be clarified.
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Affiliation(s)
- Richard Christian Jensen
- Department of Endocrinology, Odense University Hospital, Søndre Blvd. 29, 5000, Odense C, Denmark; Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, J.B. Winsløws Vej 17A, 5000, Odense C, Denmark.
| | - Dorte Glintborg
- Department of Endocrinology, Odense University Hospital, Søndre Blvd. 29, 5000, Odense C, Denmark; Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, 5000, Odense, Denmark
| | - Clara Amalie Gade Timmermann
- Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, J.B. Winsløws Vej 17A, 5000, Odense C, Denmark; National Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, København K, Denmark
| | - Flemming Nielsen
- Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, J.B. Winsløws Vej 17A, 5000, Odense C, Denmark
| | - Henriette Boye
- Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Kløvervænget 23C, 5000, Odense C, Denmark
| | - Jeppe Buur Madsen
- Department of Biochemistry and Immunology, Lillebaelt Hospital, Kabbeltoft 25, University Hospital of Southern Denmark, 7100, Vejle, Denmark
| | - Niels Bilenberg
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, 5000, Odense, Denmark; Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Kløvervænget 23C, 5000, Odense C, Denmark; Department of Child and Adolescent Mental Health Odense, Mental Health Services in the Region of Southern Denmark, J. B. Winsløws Vej 16, 5000, Odense, Denmark
| | - Philippe Grandjean
- Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, J.B. Winsløws Vej 17A, 5000, Odense C, Denmark; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, 677 Huntington Avenue Boston, MA, 02115, USA
| | - Tina Kold Jensen
- Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, J.B. Winsløws Vej 17A, 5000, Odense C, Denmark; Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Kløvervænget 23C, 5000, Odense C, Denmark; OPEN, University of Southern Denmark, J. B. Winsløws Vej 9a, 5000, Odense C, Denmark
| | - Marianne S Andersen
- Department of Endocrinology, Odense University Hospital, Søndre Blvd. 29, 5000, Odense C, Denmark; Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, 5000, Odense, Denmark
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Timmermann CAG, Andersen MS, Budtz-Jørgensen E, Boye H, Nielsen F, Jensen RC, Bruun S, Husby S, Grandjean P, Jensen TK. Pregnancy Exposure to Perfluoroalkyl Substances and Associations With Prolactin Concentrations and Breastfeeding in the Odense Child Cohort. J Clin Endocrinol Metab 2022; 107:e631-e642. [PMID: 34529060 PMCID: PMC8764222 DOI: 10.1210/clinem/dgab638] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/14/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Human exposure to perfluoroalkyl substances (PFAS) has been associated with reduced duration of breastfeeding, although not consistently so, and mechanisms by which PFAS might affect breastfeeding are unknown. OBJECTIVE To examine the association between early pregnancy serum-PFAS concentrations and breastfeeding termination and to elucidate the potential role of serum-prolactin concentrations in pregnancy. MATERIALS AND METHODS Pregnant women from the Odense Child Cohort provided blood samples for analysis of 5 major PFAS (n = 1300) and prolactin concentrations (n = 924). They subsequently provided information about the duration of breastfeeding in questionnaires at 3 and 18 months postpartum, and a subgroup also provided breastfeeding information via weekly cell phone text messages. Associations between serum-PFAS concentrations and breastfeeding termination were analyzed using Cox regressions, while linear regression was used to assess associations between serum-PFAS and prolactin concentrations. RESULTS Increased serum concentrations of perfluorooctane sulfonic acid, perfluorooctanoic acid, perfluorononanoic acid, and ∑PFAS were associated with a 16% (95% CI: 4%-30%), 14% (95% CI: 2%-26%), 14% (95% CI: 3%-27%), and 20% (95% CI: 6%-36%), respectively, increased risk of terminating breastfeeding at any given time after childbirth. Serum-PFAS concentrations were not associated with serum-prolactin concentrations. CONCLUSIONS These findings are of public health importance due to the global exposures to PFAS. Because breastfeeding is crucial to promote both child health and maternal health, adverse PFAS effects on the ability to breastfeed may have long-term health consequences.
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Affiliation(s)
- Clara Amalie Gade Timmermann
- Research Unit of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
- Correspondence: Clara Amalie Gade Timmermann, MSc, PhD, National Institute of Public Health, University of Southern Denmark, Studiestræde 6, DK-1455 Copenhagen, Denmark.
| | | | | | - Henriette Boye
- Odense Child Cohort, Hans Christian Andersen Children’s Hospital, Odense University Hospital, Odense, Denmark
| | - Flemming Nielsen
- Research Unit of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | - Richard Christian Jensen
- Research Unit of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Signe Bruun
- Hans Christian Andersen Children’s Hospital, Odense University Hospital and University of Southern Denmark, Odense, Denmark
- Strategic Business Unit Pediatric, Arla Foods Ingredients Group P/S, Viby J, Denmark
| | - Steffen Husby
- Hans Christian Andersen Children’s Hospital, Odense University Hospital and University of Southern Denmark, Odense, Denmark
| | - Philippe Grandjean
- Research Unit of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Tina Kold Jensen
- Research Unit of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Odense Child Cohort, Hans Christian Andersen Children’s Hospital, Odense University Hospital, Odense, Denmark
- Open Patient data Exploratory Network (OPEN), Odense University Hospital, Odense, Denmark
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Jensen TK, Andersson AM, Main KM, Johannsen TH, Andersen MS, Kyhl HB, Juul A, Frederiksen H. Prenatal paraben exposure and anogenital distance and reproductive hormones during mini-puberty: A study from the Odense Child Cohort. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:145119. [PMID: 33477047 DOI: 10.1016/j.scitotenv.2021.145119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Parabens are added to personal care products as antimicrobial preservatives. They have been suggested to have endocrine disrupting abilities. Prenatal exposure to parabens has been associated with reproductive endpoints including reduced male anogenital distance (AGD, distance from anus to genitals), which is sensitive to prenatal anti-androgenic exposure. OBJECTIVES To study the associations between maternal paraben concentrations in second trimester urine and AGD and reproductive hormone concentrations at 3 months of age in offspring. METHODS Pregnant women from Odense, Denmark were included in early pregnancy from 2010 to 12, and their children are being followed up. Fasting spot urine samples from 536 pregnant women were analyzed for methylparaben (MeP), ethyl-paraben (EtP), iso-propylparaben (i-PrP), n-propylparaben (n-PrP), n-butylparaben (n-BuP) and benzylparaben (BzP) by liquid chromatography tandem mass spectrometry and thereafter osmolarity adjusted. Three months after expected date of birth, AGD was measured in 452 children, and serum concentrations of follicle stimulating hormone (FSH), luteinizing (LH), testosterone, dehydroepiandrosterone-sulphate (DHEAS), androstenedione and 17-hydroxyprogesterone (17-OHP) were measured in 198 children. Maternal paraben exposure was categorized into tertiles or below and above level of detection, and sex-stratified multiple linear regression analyses were performed with AGD or reproductive hormones as outcomes. RESULTS Most pregnant women had low concentrations of parabens in urine, but 10% exceeded the threshold for adverse estrogenic effects. Higher maternal paraben exposure was associated with shorter AGD in male offspring and longer AGD in girls, although only significant for MeP in boys. In addition, FSH, LH, DHEAS, 17-OHP concentrations were lower in girls with high prenatal paraben exposure, whereas no consistent pattern was found in boys. DISCUSSION The endocrine disrupting abilities of parabens may affect humans at vulnerable time periods during development, which may have long term impact on reproductive function. This is the first study to find these associations in girls and our findings need confirmation.
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Affiliation(s)
- Tina Kold Jensen
- Department of Pharmacology, Clinical Pharmacy and Environmental Medicine, University of Southern Denmark, Odense 5000, Denmark; Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark.
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Katharina M Main
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Trine Holm Johannsen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Marianne S Andersen
- Department of Endocrinology, Odense University Hospital, Kløvervænget 6, 5000 Odense C, Denmark
| | - Henriette Boye Kyhl
- Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Kløvervænget 23C, 5000 Odense C, Denmark; OPEN Patient data Exploratory Network (OPEN), University of Southern, Denmark
| | - Anders Juul
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
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Mokra K. Endocrine Disruptor Potential of Short- and Long-Chain Perfluoroalkyl Substances (PFASs)-A Synthesis of Current Knowledge with Proposal of Molecular Mechanism. Int J Mol Sci 2021; 22:2148. [PMID: 33670069 PMCID: PMC7926449 DOI: 10.3390/ijms22042148] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 01/25/2023] Open
Abstract
Endocrine disruptors are a group of chemical compounds that, even in low concentrations, cause a hormonal imbalance in the body, contributing to the development of various harmful health disorders. Many industry compounds, due to their important commercial value and numerous applications, are produced on a global scale, while the mechanism of their endocrine action has not been fully understood. In recent years, per- and polyfluoroalkyl substances (PFASs) have gained the interest of major international health organizations, and thus more and more studies have been aimed to explain the toxicity of these compounds. PFASs were firstly synthesized in the 1950s and broadly used in the industry in the production of firefighting agents, cosmetics and herbicides. The numerous industrial applications of PFASs, combined with the exceptionally long half-life of these substances in the human body and extreme environmental persistence, result in a common and chronic exposure of the general population to their action. Available data have suggested that human exposure to PFASs can occur during different stages of development and may cause short- or/and long-term health effects. This paper synthetizes the current literature reports on the presence, bioaccumulation and, particularly, endocrine toxicity of selected long- and short-chain PFASs, with a special emphasis on the mechanisms underlying their endocrine actions.
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Affiliation(s)
- Katarzyna Mokra
- Department of Environmental Pollution Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143 St., 90-236 Lodz, Poland
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Nian M, Luo K, Luo F, Aimuzi R, Huo X, Chen Q, Tian Y, Zhang J. Association between Prenatal Exposure to PFAS and Fetal Sex Hormones: Are the Short-Chain PFAS Safer? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:8291-8299. [PMID: 32525661 DOI: 10.1021/acs.est.0c02444] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Epidemiologic evidence regarding the effects of in utero exposure to per- and polyfluoroalkyl substances (PFAS), particularly short-chain PFAS, on fetal reproductive hormones is limited and inconsistent. This study aimed to assess the relationship between maternal PFAS exposure and fetal reproductive hormones. A total of 752 mother-infant pairs who were recruited in the Shanghai Birth Cohort Study between 2013 and 2016 were selected. We quantified 10 PFAS, including two short-chain PFAS congeners (perfluorobutanesulfonate, PFBS and perfluoroheptanoic acid, PFHpA), in maternal blood plasma in early pregnancy. Dehydroepiandrosterone sulfate (DHEA-S), sex hormone-binding globulin (SHBG), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and total testosterone (TT) were measured in the umbilical cord blood using chemiluminescence kits. Free androgen index (FAI) was calculated by TT divided by SHBG. Multiple linear regression found that one ln-unit increase in maternal PFBS was associated with decreases in FSH (-0.159; 95% CI: -0.290, -0.029), LH (-0.113; 95% CI: -0.221, -0.004), and FAI (-0.009; 95% CI: -0.017, -0.001). In addition, PFHpA showed negative associations with LH (-0.154; 95% CI: -0.297, -0.011) and FAI (-0.008; 95% CI: -0.014, -0.002). When PFAS were analyzed in quartiles, significant negative associations were observed between PFBS and FSH, and between PFHpA and FAI. Overall, prenatal exposure to PFBS and PFHpA was associated with the disturbance of fetal gonadotropins as well as free androgen level in this prospective cohort, suggesting that the reproductive toxicity of short-chain PFAS may not be neglected.
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Affiliation(s)
- Min Nian
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Kai Luo
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Fei Luo
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Ruxianguli Aimuzi
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Xiaona Huo
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
| | - Qian Chen
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
| | - Ying Tian
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University of Medicine, Shanghai, 200092, China
- School of Public Health, Shanghai Jiao Tong University, Shanghai, 200025, China
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Jensen RC, Andersen MS, Larsen PV, Glintborg D, Dalgård C, Timmermann CAG, Nielsen F, Sandberg MB, Andersen HR, Christesen HT, Grandjean P, Jensen TK. Prenatal Exposures to Perfluoroalkyl Acids and Associations with Markers of Adiposity and Plasma Lipids in Infancy: An Odense Child Cohort Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:77001. [PMID: 32628516 PMCID: PMC7338787 DOI: 10.1289/ehp5184] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
BACKGROUND Perfluoroalkyl acids (PFAA) are repellants that cross the placental barrier, enabling interference with fetal programming. Maternal PFAA concentrations have been associated with offspring obesity and dyslipidemia in childhood and adulthood, but this association has not been studied in infancy. OBJECTIVES We investigated associations between maternal PFAA concentrations and repeated markers of adiposity and lipid metabolism in infancy. METHODS In the prospective Odense Child Cohort, maternal pregnancy serum concentrations of five PFAA: Perfluorohexane sulfonic acid (PFHxS), perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorodecanoic acid (PFDA) were measured in 649 women. Offspring were examined at birth (n=613) and at 3 months (n=602) and 18 months (n=503) of age. Total cholesterol, LDL, HDL, and triglyceride were evaluated at 3 months (n=262) and 18 months (n=198) of age. Mixed effects linear regression models estimated associations between PFAA and standardized (SDS) body mass index (BMI), ponderal index, and waist circumference. Associations between PFAA and body fat% (BF%) and plasma lipids SDS at 3 months and 18 months of age were investigated with linear regression models. RESULTS PFNA and PFDA were associated with higher BMI SDS [adjusted β=0.26; 95% confidence interval (CI): 0.03, 0.49 and β=0.58; 95% CI: -0.03, 1.19, respectively, for 1-ng/mL increases] and ponderal index SDS (β=0.36; 95% CI: 0.13, 0.59 and β=1.02; 95% CI: 0.40, 1.64, respectively) at 3 and 18 months of age (pooled) in girls. Corresponding estimates for boys were closer to the null but not significantly different from estimates for girls. In boys and girls (combined), PFNA and PFDA were associated with BF% at age 3 months (for 1-ng/mL PFDA, β=0.40; 95% CI: 0.04, 0.75), and PFDA was associated with total cholesterol SDS at 18 months (β=1.06; 95% CI: 0.08, 2.03) (n=83). DISCUSSION Prenatal PFAA were positively associated with longitudinal markers of adiposity and higher total cholesterol in infancy. These findings deserve attention in light of rising rates of childhood overweight conditions and dyslipidemia. https://doi.org/10.1289/EHP5184.
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Affiliation(s)
- Richard Christian Jensen
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | | | - Pia Veldt Larsen
- Telepsychiatric Centre, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Dorte Glintborg
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - Christine Dalgård
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Flemming Nielsen
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | | | - Helle Raun Andersen
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | - Henrik Thybo Christesen
- Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
| | - Philippe Grandjean
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Tina Kold Jensen
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
- Odense Child Cohort, Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark
- Odense Patient data Exploratory Network (OPEN), University of Southern Denmark, Odense, Denmark
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