51
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Wang H, Du H, Yang J, Jiang H, O K, Xu L, Liu S, Yi J, Qian X, Chen Y, Jiang Q, He G. PFOS, PFOA, estrogen homeostasis, and birth size in Chinese infants. CHEMOSPHERE 2019; 221:349-355. [PMID: 30641376 DOI: 10.1016/j.chemosphere.2019.01.061] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 05/22/2023]
Abstract
Laboratory studies have suggested that perfluoroalkyl substances (PFASs) could affect fetal growth by disrupting estrogen homeostasis, but there are limited data for human. For this, 424 mother-infant pairs were selected from a cohort established in Hebei Province of North China in 2013. Two typical PFASs, perfluorooctyl sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), and three typical estrogens, estrone (E1), β-estradiol (E2), and estriol (E3), were measured in cord serum. After adjusted for important covariates, serum PFOS was positively related to E1 and E3, but negatively related to E2. Serum PFOA was positively related to serum E1 and negatively related to head circumference at birth. Serum E2 was negatively related to head circumference, body weight, and body length at birth and serum E3 was positively related to body weight. Serum E3 mediated the relationship between serum PFOS and body weight. There were sex-specific differences for the associations between PFOS/PFOA and estrogens/birth size. These findings suggested that exposure to PFASs could affect estrogen homeostasis and fetal growth during pregnancy and that estrogens might mediate the association between exposure to PFASs and fetal growth.
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Affiliation(s)
- Hexing Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Hongyi Du
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Jiaqi Yang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Hong Jiang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Karmin O
- Department of Animal Science, Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, R3T2N2, Canada
| | - Linji Xu
- Maternal and Child Health Care Hospital of Tangshan Municipality, Tangshan, 063000, Hebei province, China
| | - Shuping Liu
- Maternal and Child Health Care Hospital of Tangshan Municipality, Tangshan, 063000, Hebei province, China
| | - Jianping Yi
- Maternal and Child Health Care Hospital of Tangshan Municipality, Tangshan, 063000, Hebei province, China
| | - Xu Qian
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, K1G5Z3, Canada
| | - Qingwu Jiang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Gengsheng He
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China.
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Wang W, Zhou W, Wu S, Liang F, Li Y, Zhang J, Cui L, Feng Y, Wang Y. Perfluoroalkyl substances exposure and risk of polycystic ovarian syndrome related infertility in Chinese women. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 247:824-831. [PMID: 30731307 DOI: 10.1016/j.envpol.2019.01.039] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Perfluoroalkyl substances (PFASs) are a family of synthetic, fluorinated organic compounds. They have been widely used in industrial applications and consumer products and widespread in the environment, wildlife and human. Experimental and epidemiologic evidence suggested that PFASs are capable of interfering with endocrine processes and have potential reproductive and developmental toxicities. Polycystic ovarian syndrome (PCOS), one of the main reasons of female infertility, is a common endocrine disorder in reproductive age women. We performed a case-control study to evaluate associations between PCOS-related infertility and PFASs concentrations in plasma. A total of 180 infertile PCOS-cases and 187 healthy controls were recruited from the Center for Reproductive Medicine of Shandong University. Blood specimens were collected at enrollment and analyzed for ten PFASs using liquid chromatography-tandem mass spectrometry. Multivariable logistic regression procedure was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for each PFAS. Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) were the dominant PFASs in the plasma of participants, with the median concentration of 5.07 ng/mL and 4.05 ng/mL, respectively. The median levels of individual PFAS were not significantly different between PCOS-cases and controls. While adjusted for the potential confounders (age, BMI, household income, education level, employment status, age at menarche, menstrual volume), the plasma concentration of perfluorododecanoic acid (PFDoA), a 12 carbons lengths of perfluorocarboxylic acids, was associated with a significantly increased risk of PCOS-related infertility (medium vs low tertile: OR = 2.36, 95% CI: 1.12, 4.99, P = 0.02; high vs low tertile: OR = 3.04, 95% CI: 1.19, 7.67, P = 0.02), with the P trend 0.01. No significant relationship was observed between PCOS-related infertility and other PFAS analytes in the adjusted model, despite perfluoroundecanoic acid showed a negative association (P trend 0.03). The potential reproductive health effects of PFASs and the underlying mechanisms merit further investigation in the future.
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Affiliation(s)
- Wei Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Wei Zhou
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, PR China
| | - Shaowei Wu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, PR China
| | - Fan Liang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Yan Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Jun Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, PR China
| | - Linlin Cui
- Center for Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250001, PR China
| | - Yan Feng
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China
| | - Yan Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, PR China; MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, PR China; The Ninth People's Hospital of Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, PR China.
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53
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Endocrine disruptors of inhibiting testicular 3β-hydroxysteroid dehydrogenase. Chem Biol Interact 2019; 303:90-97. [PMID: 30826252 DOI: 10.1016/j.cbi.2019.02.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/09/2019] [Accepted: 02/26/2019] [Indexed: 01/01/2023]
Abstract
Testicular 3β-hydroxysteroid dehydrogenase (HSD3B) is a steroidogenic enzyme, catalyzing the conversion of 3β-hydroxysteroids into 3-keto-steroids. Two distinct isoforms in the human are cloned, HSD3B1 and HSD3B2, and HSD3B2 is located in the testis. HSD3B2 is a two-substrate enzyme, which binds to cofactor NAD+ and a 3β-steroid. Many endocrine disruptors, including industrial compounds (phthalates, bisphenols, and perfluoroalkyl substances), insecticides and biocides (organochlorine insecticides and organotins), food additives (butylated hydroxyanisole, resveratrol, gossypol, flavones, and isoflavones), and drugs (etomidate, troglitazone, medroxyprogesterone acetate, and ketoconazole) inhibit testicular HSD3B, possibly interfering with androgen synthesis. In this review, we discuss the distinct testicular isoform of HSD3B, its gene, chemistry, subcellular location, and the endocrine disruptors that directly inhibit testicular HSD3B and their inhibitory modes.
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Perfluorohexanoic acid toxicity, part I: Development of a chronic human health toxicity value for use in risk assessment. Regul Toxicol Pharmacol 2019; 103:41-55. [PMID: 30639337 DOI: 10.1016/j.yrtph.2019.01.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/05/2019] [Accepted: 01/07/2019] [Indexed: 01/09/2023]
Abstract
Perfluorohexanoic acid (PFHxA) is a short-chain, six-carbon perfluoroalkyl acid (PFAA) and is a primary impurity, degradant, and metabolite associated with the short-chain fluorotelomer-based chemistry used globally today. The transition to short-chain fluorotelomer-based products as a cornerstone in replacement fluorochemistry has raised questions regarding potential human health risks associated with exposure to fluorotelomer-based substances and therefore, PFHxA. Here, we present a critical review of data relevant to such a risk assessment, including epidemiological studies and in vivo and in vitro toxicity studies that examined PFHxA acute, subchronic, and chronic toxicity. Key findings from toxicokinetic and mode-of-action studies are also evaluated. Sufficient data exist to conclude that PFHxA is not carcinogenic, is not a selective reproductive or developmental toxicant, and does not disrupt endocrine activity. Collectively, effects caused by PFHxA exposure are largely limited to potential kidney effects, are mild and/or reversible, and occur at much higher doses than observed for perfluorooctanoic acid (PFOA). A chronic human-health-based oral reference dose (RfD) for PFHxA of 0.25 mg/kg-day was calculated using benchmark dose modeling of renal papillary necrosis from a chronic rat bioassay. This RfD is four orders of magnitude greater than the chronic oral RfD calculated by the U.S. Environmental Protection Agency for PFOA. The PFHxA RfD can be used to inform public health decisions related to PFHxA and fluorotelomer precursors for which PFHxA is a terminal degradant. These findings clearly demonstrate that PFHxA is less hazardous to human health than PFOA. The analyses presented support site-specific risk assessments as well as product stewardship initiatives for current and future short-chain fluorotelomer-based products.
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55
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Tian M, Huang Q, Wang H, Martin FL, Liu L, Zhang J, Shen H. Biphasic effects of perfluorooctanoic acid on steroidogenesis in mouse Leydig tumour cells. Reprod Toxicol 2018; 83:54-62. [PMID: 30508572 DOI: 10.1016/j.reprotox.2018.11.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/28/2018] [Accepted: 11/28/2018] [Indexed: 01/09/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a persistent organic pollutant, which may possess endocrine disrupting properties. Herein, we investigated the possible mechanism(s) of toxicity and steroidogenesis in mouse Leydig cells. MLTC-1 (mouse Leydig tumour cells) cells were exposed to 0, 50, 100 or 200 μM PFOA for 48 h to ascertain their effects on the nuclear (membrane) receptor responses, steroidogenesis pathway and related regulated gene expression and steroid hormone secretion profiles. Our results reveal that nuclear receptors PXR, SR-B1 and LHR are sensitive to PFOA exposure. PFOA can accumulate in mitochondria and alter cholesterol precursor (fatty acid) mitochondrial transport process-related gene expression and thus inhibit steroid hormone precursor (cholesterol) production. In particular, PFOA exhibits biphasic effects on testosterone and progesterone production at differing levels of exposure. These findings indicate the potential endocrine-related effects of PFOA on steroid hormone secretion in Leydig cells and point to a novel disruption model.
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Affiliation(s)
- Meiping Tian
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Qingyu Huang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Heng Wang
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center for Disease Control and Prevention, Zhejiang Zhoushan, 316021, China
| | - Francis L Martin
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, UK
| | - Liangpo Liu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Jie Zhang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Heqing Shen
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Li C, Liu X, Liu Q, Li S, Li Y, Hu H, Shao J. Protection of Taurine Against PFOS-Induced Neurotoxicity in PC12 Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 2:907-916. [PMID: 28849510 DOI: 10.1007/978-94-024-1079-2_72] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
As a new member of persistent organic pollutants, the potent neurotoxicity of perfluorooctane sulfonates (PFOS) found in epidemiological studies and laboratory research has drawn increasing attention around the world. Previous studies showed that apoptosis driven by oxidative stress and autophagy were both observed in PFOS-induced toxicity. Taurine has been demonstrated to exert potent protections against oxidative stress as an efficient antioxidant. Whether taurine could protect against the PFOS neurotoxicity is not known. In the present study, PC12 cells were treated with several concentrations of PFOS (31.25, 250 μM) for 24 h. 3-(4,5-Dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay was applied to assess the cell viability. DCFH-DA detector was used to explore the production of ROS. Caspase 3 activity was used to reflect the possible apoptosis pathway. The lyso-tracker red dying was invited to evaluate the autophagy. Our data showed that taurine could significantly reverse the decreased viability and the increased ROS production in PC12 cells treated with PFOS. Moreover, the increased autophagy and apoptosis elicited by PFOS in PC12 cells could also be attenuated by taurine. Collectively, our results indicate that taurine may be an effective antioxidant in fighting against PFOS cytotoxicity and therefore could potentially serve as a preventative and therapeutic agent for environmental pollution-related toxicities.
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Affiliation(s)
- Chunna Li
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China
| | - Xiaohui Liu
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China
| | - Qi Liu
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China
| | - Shuangyue Li
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China
| | - Yachen Li
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China
| | - Hong Hu
- Laboratory of Medicine, The Second Hospital of Dalian Medical University, Dalian, 116027, China.
| | - Jing Shao
- Department of Environmental Health and Toxicology, School of Public Health, Dalian Medical University, Dalian, 116044, China.
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Borghoff SJ, Fitch S, Rager JE, Huggett D. A hypothesis-driven weight-of-evidence analysis to evaluate potential endocrine activity of perfluorohexanoic acid. Regul Toxicol Pharmacol 2018; 99:168-181. [PMID: 30240830 DOI: 10.1016/j.yrtph.2018.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/31/2018] [Accepted: 09/01/2018] [Indexed: 12/11/2022]
Abstract
Perfluorohexanoic acid (PFHxA) is a potential impurity and environmental degradation product of C6-based fluorotelomer products. Considering the potential endocrine activity of perfluoroalkyl acids, a hypothesis-driven weight-of-evidence (WoE) analysis was conducted to evaluate the potential endocrine disruptor activity of PFHxA, as defined by World Health Organization (WHO), across estrogen (E), androgen (A), thyroid (T), and steroidogenesis (S) pathways. A comprehensive literature search identified primary and secondary studies across species for review. The ToxCast/Tox21 database provided in vitro data. Studies identified were reviewed for reliability, and relevance, with endocrine endpoints ranked, and lines of evidence evaluated across pathways. Overall, PFHxA showed no endocrine effects in Japanese medaka, juvenile rainbow trout, chickens or reproductive parameters in northern bobwhite with no significant activity in rodent repeated-dose toxicity, lifetime cancer, or reproductive and developmental studies. In vitro, there was weak or negative activity for T transport protein or activation of E, A or T receptors. PFHxA was also negative in vitro and in vivo for disrupting steroidogenesis. Based on this WoE endocrine analysis, PFHxA exposure did not cause adverse effects associated with alterations in endocrine activity in these models, as such would not be characterized as an endocrine disruptor according to the WHO definition.
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Affiliation(s)
| | - S Fitch
- ToxStrategies, Katy, TX, USA
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58
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Perfluorinated alkyl acids in the serum and follicular fluid of UK women with and without polycystic ovarian syndrome undergoing fertility treatment and associations with hormonal and metabolic parameters. Int J Hyg Environ Health 2018; 221:1068-1075. [DOI: 10.1016/j.ijheh.2018.07.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 06/08/2018] [Accepted: 07/17/2018] [Indexed: 01/09/2023]
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59
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Rush EL, Singer AB, Longnecker MP, Haug LS, Sabaredzovic A, Symanski E, Whitworth KW. Oral contraceptive use as a determinant of plasma concentrations of perfluoroalkyl substances among women in the Norwegian Mother and Child Cohort (MoBa) study. ENVIRONMENT INTERNATIONAL 2018; 112:156-164. [PMID: 29274593 PMCID: PMC5899038 DOI: 10.1016/j.envint.2017.12.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 12/08/2017] [Accepted: 12/11/2017] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Because oral contraceptives (OC) tends to lessen menstrual fluid loss - a route of excretion for perfluoroalkyl substances (PFASs) - we hypothesized that such use would be positively associated with PFAS concentrations. METHODS This analysis was based on the Norwegian Mother and Child Cohort (MoBa) study. We included 1090 women from two previous substudies of women enrolled from 2003 to 2007. Characteristics of OC use were obtained at baseline: use in the past 12months, duration and recency of use, age at first use. We examined log-transformed plasma concentrations of seven PFASs (perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluoroundecanoic acid (PFUnDA), perfluorohexane sulfonate (PFHxS), perfluoroheptane sulfonate (PFHpS), and perfluorooctane sulfonate (PFOS)). Linear regression analyses, adjusted for maternal age, menstrual cycle length, parity, and education, were used to examine whether OC use characteristics were determinants of PFAS concentrations. RESULTS Except for PFDA and PFUnDA, women who used OCs in the 12months preceding the baseline interview had 12.9-35.7% higher PFAS concentrations than never OC users. To a lesser extent, past OC use was positively associated with PFASs (estimates ranged from 7.2-32.1%). Compared with never users, using OCs for 10 or more years was associated with increased PFAS concentrations, except for PFDA and PFUnDA (estimates for other PFASs ranged from 18.9-46.2%). We observed little effect of age at first OC use. CONCLUSIONS This analysis shows that characteristics of OC use, and duration of use in particular, may be important considerations when investigating relationships between women's reproductive outcomes and PFASs.
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Affiliation(s)
- Elise L Rush
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center at Houston, School of Public Health in San Antonio, San Antonio, TX, USA
| | - Alison B Singer
- The Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Matthew P Longnecker
- National Institute for Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Durham, NC, USA
| | - Line S Haug
- Department of Exposure Assessment and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Azemira Sabaredzovic
- Department of Exposure Assessment and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Elaine Symanski
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center at Houston, School of Public Health, Houston, TX, USA; Southwest Center for Occupational and Environmental Health, The University of Texas Health Science Center at Houston, School of Public Health, Houston, TX, USA
| | - Kristina W Whitworth
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center at Houston, School of Public Health in San Antonio, San Antonio, TX, USA; Southwest Center for Occupational and Environmental Health, The University of Texas Health Science Center at Houston, School of Public Health, Houston, TX, USA.
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60
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Bao WW, Qian ZM, Geiger SD, Liu E, Liu Y, Wang SQ, Lawrence WR, Yang BY, Hu LW, Zeng XW, Dong GH. Gender-specific associations between serum isomers of perfluoroalkyl substances and blood pressure among Chinese: Isomers of C8 Health Project in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 607-608:1304-1312. [PMID: 28738507 DOI: 10.1016/j.scitotenv.2017.07.124] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 06/21/2017] [Accepted: 07/13/2017] [Indexed: 06/07/2023]
Abstract
Previous studies have demonstrated associations of perfluoroalkyl substances (PFASs), a group of highly persistent chemicals ubiquitous in wildlife and humans, with hypertension, but the relationships are mixed. Furthermore, academic literature on the relationship between isomers of PFASs and blood pressure (BP) and hypertension in populations from a higher pollution area is scant. We studied 1612 Chinese adults, ages 22-96years old, from Shenyang, China, utilizing high performance liquid chromatography-mass spectrometry to analyze isomers of perfluorooctanesulfonate (PFOS), perfluorooctanoate (PFOA), and other PFASs in blood serum. We used a mercury sphygmomanometer to measure BP. Hypertension was defined as a mean systolic BP (SBP) of at least 140mmHg, and/or diastolic BP (DBP) of at least 90mmHg, and/or use of antihypertensive medications. The results showed that increased serum concentrations of all (both branched and linear) isomers of PFASs were associated with higher prevalence of hypertension. Adjusted odds ratios for hypertension per ln-unit (ng/mL) increase in PFASs ranged from 1.10 (95%CI: 1.04, 1.17) for perfluorobutanoic acid (PFBA) to 1.26 (95%CI: 1.12, 1.42) for 3+4+5m PFOS, and the estimated increases in mean SBP and DBP ranged from 0.80mmHg (95%CI: 0.25, 1.34) for PFBA to 4.51mmHg (95%CI: 3.52, 5.51) for 3+4+5m PFOS, and from 0.51mmHg (95%CI: 0.01, 1.01) for perfluorodecanesulfonate (PFDS) to 2.48 (1.80, 3.16) for perfluorononanoic acid (PFNA), respectively. Compared with linear PFASs isomers, we identified more and stronger associations among branched PFASs isomers and blood pressure. Furthermore, females exhibited consistently stronger effects than males. In conclusion, this study is the first of its kind to show that not only PFASs positively associated with elevated blood pressure, but also that branched PFAS isomers are more frequently associated with blood pressure than linear PFAS isomers.
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Affiliation(s)
- Wen-Wen Bao
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhengmin Min Qian
- Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis 63104, USA
| | - Sarah Dee Geiger
- School of Health Studies, Northern Illinois University, DeKalb, IL 60115, USA
| | - Echu Liu
- Department of Health Management & Policy, College for Public Health and Social Justice, Saint Louis University, Saint Louis 63104, USA
| | - Yimin Liu
- Laboratory of Occupational Environment and Health Effects, Guangzhou Key Medical Discipline of Occupational Health Guardianship, Guangzhou Prevention and Treatment Center for Occupational Diseases, Guangzhou No.12 Hospital, Guangzhou 510620, China
| | - Si-Quan Wang
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Wayne R Lawrence
- Department of Epidemiology and Biostatistics, School of Public Health, State University of New York, Albany, NY 12144-3445, USA
| | - Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xiao-Wen Zeng
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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Koshy TT, Attina TM, Ghassabian A, Gilbert J, Burdine LK, Marmor M, Honda M, Chu DB, Han X, Shao Y, Kannan K, Urbina EM, Trasande L. Serum perfluoroalkyl substances and cardiometabolic consequences in adolescents exposed to the World Trade Center disaster and a matched comparison group. ENVIRONMENT INTERNATIONAL 2017; 109:128-135. [PMID: 28890218 PMCID: PMC5660646 DOI: 10.1016/j.envint.2017.08.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND Large amounts of various chemical contaminants, including perfluoroalkyl substances (PFASs), were released at the time of the World Trade Center (WTC) disaster. Thousands of children who lived and/or attended school near the disaster site were exposed to these substances but few studies have examined the possible consequences related to these exposures. OBJECTIVES To examine the relationship of PFASs serum levels with cardiometabolic profile in children and adolescents enrolled in the World Trade Center Health Registry (WTCHR) and a matched comparison group. METHODS We evaluated WTCHR enrollees who resided in New York City and were born between September 11, 1993 and September 10, 2001, and a matched comparison group consisting of individuals who were ineligible for WTCHR participation upon distance of their home, school or work from the WTC and lack of participation in rescue and recovery activities. Matching was based on date of birth, sex, race, ethnicity, and income. We assessed exposure to PFASs, as measured by serum levels and association with cardiometabolic profile as measured by arterial wall stiffness, body mass index, insulin resistance, fasting total cholesterol, HDL, LDL and triglycerides. RESULTS A total of 402 participants completed the study and serum samples were analyzed from 308 participants, 123 in the WTCHR group and 185 in the comparison group. In multivariable regression analysis, after adjusting for relevant confounders, we observed a significant, positive association of perfluorooctanoic acid (PFOA) with triglycerides (beta coefficient=0.14, 95% CI: 0.02, 0.27, 15.1% change), total cholesterol (beta coefficient=0.09, 95% CI: 0.04, 0.14, 9.2% change), and LDL cholesterol (beta coefficient=0.11, 95% CI: 0.03, 0.19, 11.5% change). Perfluorohexanesulfonic acid levels were associated with decreased insulin resistance (beta coefficient=-0.09, 95% CI: -0.18, -0.003, -8.6% change); PFOA and perfluorononanoic acid were associated with increased brachial artery distensibility. CONCLUSIONS This research adds to our knowledge of the physical health impacts in a large group of children exposed to the WTC disaster. Abnormal lipid levels in young adults might be an early marker of atherosclerosis and cardiovascular diseases and our findings highlight the importance of conducting longitudinal studies in this population.
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Affiliation(s)
- Tony T Koshy
- Pediatrics, New York University School of Medicine, New York, NY, USA
| | - Teresa M Attina
- Pediatrics, New York University School of Medicine, New York, NY, USA
| | - Akhgar Ghassabian
- Pediatrics, New York University School of Medicine, New York, NY, USA; Environmental Medicine, New York University School of Medicine, New York, NY, USA
| | - Joseph Gilbert
- Pediatrics, New York University School of Medicine, New York, NY, USA
| | - Lauren K Burdine
- Pediatrics, New York University School of Medicine, New York, NY, USA
| | - Michael Marmor
- Environmental Medicine, New York University School of Medicine, New York, NY, USA; Population Health, New York University School of Medicine, New York, NY, USA; Medicine, New York University School of Medicine, New York, NY, USA
| | - Masato Honda
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Dinh Binh Chu
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Xiaoxia Han
- Population Health, New York University School of Medicine, New York, NY, USA
| | - Yongzhao Shao
- Environmental Medicine, New York University School of Medicine, New York, NY, USA; Population Health, New York University School of Medicine, New York, NY, USA
| | | | - Elaine M Urbina
- Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Leonardo Trasande
- Pediatrics, New York University School of Medicine, New York, NY, USA; Environmental Medicine, New York University School of Medicine, New York, NY, USA; Population Health, New York University School of Medicine, New York, NY, USA; Medicine, New York University School of Medicine, New York, NY, USA; NYU Wagner School of Public Service, New York, NY, USA; NYU College of Global Public Health, New York, NY, USA.
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62
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Rappazzo KM, Coffman E, Hines EP. Exposure to Perfluorinated Alkyl Substances and Health Outcomes in Children: A Systematic Review of the Epidemiologic Literature. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:E691. [PMID: 28654008 PMCID: PMC5551129 DOI: 10.3390/ijerph14070691] [Citation(s) in RCA: 245] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 01/09/2023]
Abstract
Perfluoroalkyl substances (PFAS), chemicals used to make products stain and stick resistant, have been linked to health effects in adults and adverse birth outcomes. A growing body of literature also addresses health effects in children exposed to PFAS. This review summarizes the epidemiologic evidence for relationships between prenatal and/or childhood exposure to PFAS and health outcomes in children as well as to provide a risk of bias analysis of the literature. A systematic review was performed by searching PubMed for studies on PFAS and child health outcomes. We identified 64 studies for inclusion and performed risk of bias analysis on those studies. We determined that risk of bias across studies was low to moderate. Six categories of health outcomes emerged. These were: immunity/infection/asthma, cardio-metabolic, neurodevelopmental/attention, thyroid, renal, and puberty onset. While there are a limited number of studies for any one particular health outcome, there is evidence for positive associations between PFAS and dyslipidemia, immunity (including vaccine response and asthma), renal function, and age at menarche. One finding of note is that while PFASs are mixtures of multiple compounds few studies examine them as such, therefore the role of these compounds as complex mixtures remains largely unknown.
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Affiliation(s)
- Kristen M Rappazzo
- Oak Ridge Institute for Science and Education at the U.S. Environmental Protection Agency, National Center for Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Chapel Hill, NC 27709, USA.
| | - Evan Coffman
- Oak Ridge Institute for Science and Education at the U.S. Environmental Protection Agency, National Center for Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
- Office of Air Quality Planning and Standards, Office of Air and Radiation, U.S. Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
| | - Erin P Hines
- National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27709, USA.
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63
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Chen Y, Zhou L, Xu J, Zhang L, Li M, Xie X, Xie Y, Luo D, Zhang D, Yu X, Yang B, Kuang H. Maternal exposure to perfluorooctanoic acid inhibits luteal function via oxidative stress and apoptosis in pregnant mice. Reprod Toxicol 2017; 69:159-166. [PMID: 28219760 DOI: 10.1016/j.reprotox.2017.02.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 02/09/2017] [Accepted: 02/15/2017] [Indexed: 11/16/2022]
Abstract
Perfluorooctanoic acid (PFOA) is a synthetic perfluorinated compound, which has been reported to exert adverse effect on the pregnancy. However, whether it is associated with alteration of luteal function remains unknown. Mice were administered PFOA by gavage from gestational days (GD) 1-7 or 13. PFOA treatment did not significantly affect numbers of embryo implantation. Nevertheless, on GD 13, 10mg/kg PFOA treatment significantly increased numbers of resorbed embryo. Furthermore, PFOA exposure markedly reduced serum progesterone levels but did not affect estradiol levels. Treatment also showed concomitant decreases in transcript levels for key steroidogenic enzymes, and reduced numbers and sizes of corpora lutea. In addition, PFOA administration inhibited activities of superoxide dismutase and catalase, and increased generation of hydrogen peroxide and malondialdehyde, and down-regulated level of Bcl-2 and up-regulated p53 and BAX proteins. In conclusion, PFOA exposure significantly inhibits luteal function via oxidative stress and apoptosis in pregnant mice.
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Affiliation(s)
- Yilu Chen
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Ling Zhou
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Jingjie Xu
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Lu Zhang
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Mo Li
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Xingxing Xie
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Yajuan Xie
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Dan Luo
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Dalei Zhang
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Xiaochun Yu
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Bei Yang
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
| | - Haibin Kuang
- Jiangxi Provincial Key Laboratory of Reproductive Physiology and Pathology and Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
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