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Rodríguez-Carrillo A, Remy S, Koppen G, Wauters N, Mustieles V, Desalegn A, Iszatt N, den Hond E, Verheyen VJ, Fábelová L, Murinova LP, Pedraza-Díaz S, Esteban M, Poyatos RM, Govarts E, van Nuijs ALN, Covaci A, Schoeters G, Olea N, Fernández MF. Urinary phthalate/ DINCH metabolites associations with kisspeptin and reproductive hormones in teenagers: A cross-sectional study from the HBM4EU aligned studies. Sci Total Environ 2024; 929:172426. [PMID: 38631641 DOI: 10.1016/j.scitotenv.2024.172426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Exposure to phthalate/DINCH metabolites can induce human reproductive toxicity, however, their endocrine-disrupting mechanisms are not fully elucidated. OBJECTIVE To investigate the association between concentrations of phthalate/DINCH metabolites, serum kisspeptin, and reproductive hormones among European teenagers from three of the HBM4EU Aligned Studies. METHODS In 733 Belgian (FLEHS IV study), Slovak (PCB cohort follow-up), and Spanish (BEA study) teenagers, ten phthalate and two DINCH metabolites were measured in urine by high-performance liquid chromatography-tandem mass spectrometry. Serum kisspeptin (kiss54) protein, follicle-stimulating hormone (FSH), total testosterone (TT), estradiol (E2), and sex hormone-binding globulin (SHBG) levels were measured by immunosorbent assays. Free Androgen Index (FAI) was calculated as a proxy of free testosterone. Adjusted sex-stratified linear regression models for individual studies, mixed effect models (LME) accounting for random effects for pooled studies, and g-computation and Bayesian kernel machine regression (BKMR) models for the phthalate/DINCH mixture were performed. RESULTS The LME suggested that each IQR increase in ln-transformed levels of several phthalates was associated with lower kisspeptin [MnBP: %change (95%CI): -2.8 (-4.2;-0.4); MEHP: -1.4 (-3.4,0.2)] and higher FSH [∑DINP: 11.8 (-0.6;25.1)] levels in females from pooled studies. G-computation showed that the phthalates/DINCH mixture was associated with lower kisspeptin [-4.28 (-8.07;-0.34)] and higher FSH [22.13 (0.5;48.4)] also in females; BKMR showed similar although non-significant pattern. In males, higher phthalates metabolites [MEHP: -12.22 (-21.09;-1.18); oxo-MEHP: -12.73 (-22.34;-1.93)] were associated with lower TT and FAI, although higher DINCH [OH-MINCH: 16.31 (6.23;27.35), cx-MINCH: 16.80 (7.03;27.46), ∑DINCH: 17.37 (7.26;29.74)] were associated with higher TT levels. No mixture associations were found in males. CONCLUSION We observed sex-specific associations between urinary concentrations of phthalate/DINCH metabolites and the panel of selected effect biomarkers (kisspeptin and reproductive hormones). This suggests that exposure to phthalates would be associated with changes in kisspeptin levels, which would affect the HPG axis and thus influence reproductive health. However, further research is needed, particularly for phthalate replacements such as DINCH.
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Affiliation(s)
- Andrea Rodríguez-Carrillo
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; Toxicological Centre, University of Antwerp, Universiteitsplein, 1, 2610 Wilrijk, Belgium
| | - Sylvie Remy
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Gudrun Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Natasha Wauters
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Vicente Mustieles
- Biomedical Research Center & School of Medicine, University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Spain
| | - Anteneh Desalegn
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, Norway
| | - Nina Iszatt
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, Norway
| | | | - Veerle J Verheyen
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Lucia Fábelová
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia
| | - Lubica Palkovicova Murinova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia
| | - Susana Pedraza-Díaz
- National Centre for Environmental Health, Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Esteban
- National Centre for Environmental Health, Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael M Poyatos
- Unidad de Gestión Clínica de Laboratorios, Hospital Universitario Clínico San Cecilio, Granada, Spain
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | | | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein, 1, 2610 Wilrijk, Belgium
| | - Greet Schoeters
- Department of Radiology and Physical Medicine, School of Medicine, University of Granada, 18016 Granada, Spain
| | - Nicolás Olea
- Biomedical Research Center & School of Medicine, University of Granada, 18016 Granada, Spain; Department of Radiology and Physical Medicine, School of Medicine, University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Spain
| | - Mariana F Fernández
- Biomedical Research Center & School of Medicine, University of Granada, 18016 Granada, Spain; Department of Radiology and Physical Medicine, School of Medicine, University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18012 Granada, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Spain.
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Jiang Y, Xu Y, Xiao S, Zhu X, Lv H, Zang L, Lei S, Xu X, Xu B, Han X, Zhu J, Du J, Ma H, Hu Z, Ling X, Dai J, Lin Y. Phthalate and DINCH exposure and ovarian reserve markers among women seeking infertility care. Sci Total Environ 2024; 927:172185. [PMID: 38575009 DOI: 10.1016/j.scitotenv.2024.172185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
Phthalate exposure can adversely impact ovarian reserve, yet investigation on the influence of its alternative substance, the non-phthalate plasticizer diisononyl-cyclohexane-1,2-dicarboxylate (DINCH), on ovarian reserve is very sparce. We aimed to investigate the associations of phthalate and DINCH exposure as well as their combined mixture with ovarian reserve. This present study included 657 women seeking infertility care in Jiangsu, China (2015-2018). Urine samples during enrollment prior to infertility treatment were analyzed using high-performance liquid chromatography-isotope dilution tandem mass spectrometry (UPLC-MS/MS) to quantify 17 phthalate metabolites and 3 DINCH metabolites. Multivariate linear regression models, Poisson regression models and weighted quantile sum (WQS) regression were performed to access the associations of 17 urinary phthalate metabolites and 3 DINCH metabolites with ovarian reserve markers, including antral follicle count (AFC), anti-Mullerian hormone (AMH), and follicle-stimulating hormone (FSH). We found that the most conventional phthalates metabolites (DMP, DnBP, DiBP, DBP and DEHP) were inversely associated with AFC, and the DINCH metabolites were positively associated with serum FSH levels. The WQS index of phthalate and DINCH mixtures was inversely associated with AFC (% change = -8.56, 95 % CI: -12.63, -4.31) and positively associated with FSH levels (% change =7.71, 95 % CI: 0.21, 15.78). Our findings suggest that exposure to environmental levels of phthalate and DINCH mixtures is inversely associated with ovarian reserve.
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Affiliation(s)
- Yangqian Jiang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Yiqun Xu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Shuxin Xiao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Xianxian Zhu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Hong Lv
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, China
| | - Lu Zang
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Shuifang Lei
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Xin Xu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Bo Xu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Xiumei Han
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Jin Zhu
- Department of Science and Technology, Women's Hospital of Nanjing Medical University (Nanjing Women and Children's Healthcare Hospital), Nanjing 210004, Jiangsu, China
| | - Jiangbo Du
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, China
| | - Hongxia Ma
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, China
| | - Zhibin Hu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, China
| | - Xiufeng Ling
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Reproduction, Women's Hospital of Nanjing Medical University (Nanjing Women and Children's Healthcare Hospital), Nanjing 210004, Jiangsu, China.
| | - Jiayin Dai
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Yuan Lin
- State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; Department of Maternal, Child and Adolescent Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China; State Key Laboratory of Reproductive Medicine (Suzhou Centre), The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215002, Jiangsu, China.
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Goerdeler C, Engelmann B, Aldehoff AS, Schaffert A, Blüher M, Heiker JT, Wabitsch M, Schubert K, Rolle-Kampczyk U, von Bergen M. Metabolomics in human SGBS cells as new approach method for studying adipogenic effects: Analysis of the effects of DINCH and MINCH on central carbon metabolism. Environ Res 2024; 252:118847. [PMID: 38582427 DOI: 10.1016/j.envres.2024.118847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/20/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Growing evidence suggests that exposure to certain metabolism-disrupting chemicals (MDCs), such as the phthalate plasticizer DEHP, might promote obesity in humans, contributing to the spread of this global health problem. Due to the restriction on the use of phthalates, there has been a shift to safer declared substitutes, including the plasticizer diisononyl-cyclohexane-1,2-dicarboxylate (DINCH). Notwithstanding, recent studies suggest that the primary metabolite monoisononyl-cyclohexane-1,2-dicarboxylic acid ester (MINCH), induces differentiation of human adipocytes and affects enzyme levels of key metabolic pathways. Given the lack of methods for assessing metabolism-disrupting effects of chemicals on adipose tissue, we used metabolomics to analyze human SGSB cells exposed to DINCH or MINCH. Concentration analysis of DINCH and MINCH revealed that uptake of MINCH in preadipocytes was associated with increased lipid accumulation during adipogenesis. Although we also observed intracellular uptake for DINCH, the solubility of DINCH in cell culture medium was limited, hampering the analysis of possible effects in the μM concentration range. Metabolomics revealed that MINCH induces lipid accumulation similar to peroxisome proliferator-activated receptor gamma (PPARG)-agonist rosiglitazone through upregulation of the pyruvate cycle, which was recently identified as a key driver of de novo lipogenesis. Analysis of the metabolome in the presence of the PPARG-inhibitor GW9662 indicated that the effect of MINCH on metabolism was mediated at least partly by a PPARG-independent mechanism. However, all effects of MINCH were only observed at high concentrations of 10 μM, which are three orders of magnitudes higher than the current concentrations of plasticizers in human serum. Overall, the assessment of the effects of DINCH and MINCH on SGBS cells by metabolomics revealed no adipogenic potential at physiologically relevant concentrations. This finding aligns with previous in vivo studies and supports the potential of our method as a New Approach Method (NAM) for the assessment of adipogenic effects of environmental chemicals.
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Affiliation(s)
- Cornelius Goerdeler
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Beatrice Engelmann
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Alix Sarah Aldehoff
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Alexandra Schaffert
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Matthias Blüher
- Department of Endocrinology, Nephrology and Rheumatology, Faculty of Medicine, University of Leipzig, Leipzig, Germany; Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany.
| | - John T Heiker
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany.
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Ulm University Medical Center, Ulm, Germany.
| | - Kristin Schubert
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Ulrike Rolle-Kampczyk
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany.
| | - Martin von Bergen
- Department of Molecular Toxicology, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany; Institute of Biochemistry, Leipzig University, Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany.
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4
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Ouidir M, Jedynak P, Rolland M, Lyon-Caen S, Thomsen C, Sakhi AK, Sabaredzovic A, Bayat S, Slama R, Philippat C. Analyzing the impact of phthalate and DINCH exposure on fetal growth in a cohort with repeated urine collection. Environ Int 2024; 186:108584. [PMID: 38513557 DOI: 10.1016/j.envint.2024.108584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/15/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Most previous studies investigating the associations between prenatal exposure to phthalates and fetal growth relied on measurements of phthalate metabolites at a single time point. They also focused on weight at birth without assessing growth over pregnancy, preventing the identification of potential periods of fetal vulnerability. We examined the associations between pregnancy urinary phthalate metabolites and fetal growth outcomes measured twice during pregnancy and at birth. METHODS For 484 pregnant women, we assessed 13 phthalate and two 1,2-cyclohexane dicarboxylic acid, diisononyl ester (DINCH) metabolite concentrations from two within-subject weekly pools of up to 21 urine samples (median of 18 and 34 gestational weeks, respectively). Fetal biparietal diameter, femur length, head and abdominal circumferences were measured during two routine pregnancy follow-up ultrasonographies (median 22 and 32 gestational weeks, respectively) and estimated fetal weight (EFW) was calculated. Newborn weight, length, and head circumference were measured at birth. Associations between phthalate/DINCH metabolite and growth parameters were investigated using adjusted linear regression and Bayesian kernel machine regression models. RESULTS Detection rates were above 99 % for all phthalate/DINCH metabolites. While no association was observed with birth measurements, mono-iso-butyl phthalate (MiBP) and mono-n-butyl phthalate (MnBP) were positively associated with most fetal growth parameters measured at the second trimester. Specifically, MiBP was positively associated with biparietal diameter, head and abdominal circumferences, while MnBP was positively associated with EFW, head and abdominal circumferences, with stronger associations among males. Pregnancy MnBP was positively associated with biparietal diameter and femur length at third trimester. Mixture of phthalate/DINCH metabolites was positively associated with EFW at second trimester. CONCLUSIONS In this pregnancy cohort using repeated urine samples to assess exposure, MiBP and MnBP were associated with increased fetal growth parameters. Further investigation on the effects of phthalates on child health would be relevant for expanding current knowledge on their long-term effects.
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Affiliation(s)
- Marion Ouidir
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France.
| | - Paulina Jedynak
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France
| | - Matthieu Rolland
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France
| | - Sarah Lyon-Caen
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France
| | | | | | | | - Sam Bayat
- Department of Pulmonology and Physiology, Grenoble University Hospital, La Tronche, France; Synchrotron Radiation for Biomedicine Laboratory (STROBE), Inserm UA07, Grenoble Alpes University, Grenoble, France
| | - Rémy Slama
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France
| | - Claire Philippat
- University Grenoble Alpes, Inserm U 1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Development and Respiratory Health, Institute for Advanced Biosciences, 38000, Grenoble, France
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Shinohara N, Oguri T, Takagi M, Ueyama J, Isobe T. Evaluating the risk of phthalate and non-phthalate plasticizers in dust samples from 100 Japanese houses. Environ Int 2024; 183:108399. [PMID: 38157606 DOI: 10.1016/j.envint.2023.108399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Phthalates are widely used as plasticizer and associated with various health issues. Recently, non-phthalate plasticizers are replacing phthalates; however, the exposure to these substances and the risk in Japan is unclear. In this study, we assessed the concentrations of phthalates, non-phthalate plasticizers, and phthalate degradation products in house dust and determined their respective exposure risks via oral and dermal routes. Twelve phthalates, seven non-phthalate plasticizers, and two degradation products were determined in the house dust obtained from 100 Japanese homes. The median concentration of di(2-ethylhexyl) phthalate (DEHP), accounting for 85 % of the total concentration of phthalates and non-phthalate plasticizers detected in this study, was 2.1 × 103 μg/g of dust. Apart from DEHP, diisononyl phthalate (DINP) and di(2-ethylhexyl) terephthalate (DEHT) were the most abundant in the house dust, accounting for 6.2 % (median: 1.7 × 102 μg/g of dust) and 6.1 % (median: 1.7 × 102 μg/g of dust) of the total concentrations, respectively. DEHP and DEHT concentrations in house dust were higher in apartment and small houses (floor area: ≤30 m2 or 31-60 m2 for DEHP and 31-60 m2 for DEHT) than in detached and large houses (floor area: ≥121 m2). Conversely, di-n-butyl phthalate (DnBP) concentrations were significantly higher in detached and large houses (floor area: ≥121 m2) than in apartment and small houses (floor area: ≤30 m2). The total hazard quotient (HQ), using the maximum concentration in house dust, revealed that oral and dermal exposure to house dust was 1.3 × 10-6-0.11 for adults (all substances) and 1.6 × 10-5-2.2 × 10-2 for preschool children (except for DnBP and DEHP), suggesting no risk. The HQs for DnBP and DEHP exposure via house dust for preschool children using the maximum values were 0.46 and 1.2, and 6.0 × 10-3 and 0.18 using the median values, indicating that risk of DEHP exposure should be exhaustively determined by considering other exposure routes that were not evaluated in this study, such as diet.
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Affiliation(s)
- Naohide Shinohara
- Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Japan.
| | - Tomoko Oguri
- Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Japan
| | - Mai Takagi
- Health and Environmental Risk Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Japan
| | - Jun Ueyama
- Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya, Japan
| | - Tomohiko Isobe
- Health and Environmental Risk Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Japan
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Rodriguez Martin L, Gilles L, Helte E, Åkesson A, Tägt J, Covaci A, Sakhi AK, Van Nieuwenhuyse A, Katsonouri A, Andersson AM, Gutleb AC, Janasik B, Appenzeller B, Gabriel C, Thomsen C, Mazej D, Sarigiannis D, Anastasi E, Barbone F, Tolonen H, Frederiksen H, Klanova J, Koponen J, Tratnik JS, Pack K, Gudrun K, Ólafsdóttir K, Knudsen LE, Rambaud L, Strumylaite L, Murinova LP, Fabelova L, Riou M, Berglund M, Szabados M, Imboden M, Laeremans M, Eštóková M, Janev Holcer N, Probst-Hensch N, Vodrazkova N, Vogel N, Piler P, Schmidt P, Lange R, Namorado S, Kozepesy S, Szigeti T, Halldorsson TI, Weber T, Jensen TK, Rosolen V, Puklova V, Wasowicz W, Sepai O, Stewart L, Kolossa-Gehring M, Esteban-López M, Castaño A, Bessems J, Schoeters G, Govarts E. Time Patterns in Internal Human Exposure Data to Bisphenols, Phthalates, DINCH, Organophosphate Flame Retardants, Cadmium and Polyaromatic Hydrocarbons in Europe. Toxics 2023; 11:819. [PMID: 37888670 PMCID: PMC10610666 DOI: 10.3390/toxics11100819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023]
Abstract
Human biomonitoring (HBM) data in Europe are often fragmented and collected in different EU countries and sampling periods. Exposure levels for children and adult women in Europe were evaluated over time. For the period 2000-2010, literature and aggregated data were collected in a harmonized way across studies. Between 2011-2012, biobanked samples from the DEMOCOPHES project were used. For 2014-2021, HBM data were generated within the HBM4EU Aligned Studies. Time patterns on internal exposure were evaluated visually and statistically using the 50th and 90th percentiles (P50/P90) for phthalates/DINCH and organophosphorus flame retardants (OPFRs) in children (5-12 years), and cadmium, bisphenols and polycyclic aromatic hydrocarbons (PAHs) in women (24-52 years). Restricted phthalate metabolites show decreasing patterns for children. Phthalate substitute, DINCH, shows a non-significant increasing pattern. For OPFRs, no trends were statistically significant. For women, BPA shows a clear decreasing pattern, while substitutes BPF and BPS show an increasing pattern coinciding with the BPA restrictions introduced. No clear patterns are observed for PAHs or cadmium. Although the causal relations were not studied as such, exposure levels to chemicals restricted at EU level visually decreased, while the levels for some of their substitutes increased. The results support policy efficacy monitoring and the policy-supportive role played by HBM.
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Affiliation(s)
- Laura Rodriguez Martin
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
| | - Liese Gilles
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
| | - Emilie Helte
- Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; (E.H.); (A.Å.); (J.T.); (M.B.)
| | - Agneta Åkesson
- Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; (E.H.); (A.Å.); (J.T.); (M.B.)
| | - Jonas Tägt
- Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; (E.H.); (A.Å.); (J.T.); (M.B.)
| | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium;
| | - Amrit K. Sakhi
- Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.K.S.); (C.T.)
| | - An Van Nieuwenhuyse
- Laboratoire National de Santé (LNS), Rue Louis Rech 1, 3555 Dudelange, Luxembourg;
| | | | - Anna-Maria Andersson
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (A.-M.A.); (H.F.)
- International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), University of Copenhagen, Rigshospitalet, 2100 Copenhagen, Denmark
| | - Arno C. Gutleb
- Luxembourg Institute of Science and Technology (LIST), 4362 Esch-sur-Alzette, Luxembourg;
| | - Beata Janasik
- Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland; (B.J.); (W.W.)
| | | | - Catherine Gabriel
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (D.S.)
- HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - Cathrine Thomsen
- Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.K.S.); (C.T.)
| | - Darja Mazej
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (D.M.); (J.S.T.)
| | - Denis Sarigiannis
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (C.G.); (D.S.)
- HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
- Environmental Health Engineering, Institute of Advanced Study, Palazzo del Broletto–Piazza Della Vittoria 15, 27100 Pavia, Italy
| | - Elena Anastasi
- State General Laboratory, Ministry of Health, 2081 Nicosia, Cyprus; (A.K.); (E.A.)
| | - Fabio Barbone
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy;
| | - Hanna Tolonen
- Finnish Institute for Health and Welfare (THL), 00271 Helsinki, Finland; (H.T.); (J.K.)
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, 2100 Copenhagen, Denmark; (A.-M.A.); (H.F.)
| | - Jana Klanova
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, 625 00 Brno, Czech Republic; (J.K.); (P.P.)
| | - Jani Koponen
- Finnish Institute for Health and Welfare (THL), 00271 Helsinki, Finland; (H.T.); (J.K.)
| | | | - Kim Pack
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Koppen Gudrun
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
| | - Kristin Ólafsdóttir
- Faculty of Food Science and Nutrition, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (K.Ó.); (T.I.H.)
| | - Lisbeth E. Knudsen
- Section of Environmental Health, University of Copenhagen, 1165 Copenhagen, Denmark;
| | - Loïc Rambaud
- Department of Environmental and Occupational Health, Santé Publique France, 94410 Saint Maurice, France (M.R.)
| | - Loreta Strumylaite
- Neuroscience Institute, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania;
| | - Lubica Palkovicova Murinova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 833 03 Bratislava, Slovakia; (L.P.M.)
| | - Lucia Fabelova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 833 03 Bratislava, Slovakia; (L.P.M.)
| | - Margaux Riou
- Department of Environmental and Occupational Health, Santé Publique France, 94410 Saint Maurice, France (M.R.)
| | - Marika Berglund
- Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; (E.H.); (A.Å.); (J.T.); (M.B.)
| | - Maté Szabados
- National Public Health Center, Albert Florian 2-6, 1097 Budapest, Hungary; (M.S.); (S.K.); (T.S.)
| | - Medea Imboden
- Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland; (M.I.); (N.P.-H.)
| | - Michelle Laeremans
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
| | - Milada Eštóková
- Department of Environment and Health, Public Health Authority, 83105 Bratislava, Slovakia;
| | - Natasa Janev Holcer
- Division for Environmental Health, Croatian Institute of Public Health, Rockefellerova 7, 10000 Zagreb, Croatia;
- Department of Social Medicine and Epidemiology, Faculty of Medicine, University of Rijeka, Bráce Branchetta 20/1, 51000 Rijeka, Croatia
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123 Allschwil, Switzerland; (M.I.); (N.P.-H.)
| | - Nicole Vodrazkova
- Centre for Health and Environment, National Institute of Public Health, 100 00 Prague, Czech Republic; (N.V.); (V.P.)
| | - Nina Vogel
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Pavel Piler
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, 625 00 Brno, Czech Republic; (J.K.); (P.P.)
| | - Phillipp Schmidt
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Rosa Lange
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Sónia Namorado
- Department of Epidemiology, National Institute of Health Doctor Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisbon, Portugal;
| | - Szilvia Kozepesy
- National Public Health Center, Albert Florian 2-6, 1097 Budapest, Hungary; (M.S.); (S.K.); (T.S.)
| | - Tamás Szigeti
- National Public Health Center, Albert Florian 2-6, 1097 Budapest, Hungary; (M.S.); (S.K.); (T.S.)
| | - Thorhallur I. Halldorsson
- Faculty of Food Science and Nutrition, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland; (K.Ó.); (T.I.H.)
| | - Till Weber
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Tina Kold Jensen
- Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, 5000 Odense, Denmark;
| | - Valentina Rosolen
- Central Directorate for Health, Social Policies and Disability, Friuli Venezia Giulia Region, Via Cassa di Risparmio 10, 34121 Trieste, Italy;
| | - Vladimira Puklova
- Centre for Health and Environment, National Institute of Public Health, 100 00 Prague, Czech Republic; (N.V.); (V.P.)
| | - Wojciech Wasowicz
- Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland; (B.J.); (W.W.)
| | - Ovnair Sepai
- UKHSA UK Health Security Agency, Harwell Science Park, Chilton OX11 0RQ, UK; (O.S.); (L.S.)
| | - Lorraine Stewart
- UKHSA UK Health Security Agency, Harwell Science Park, Chilton OX11 0RQ, UK; (O.S.); (L.S.)
| | - Marike Kolossa-Gehring
- Department of Toxicology, Health-Related Environmental Monitoring, German Environment Agency (UBA), 14195 Berlin, Germany; (K.P.); (N.V.); (P.S.); (R.L.); (T.W.)
| | - Marta Esteban-López
- National Centre for Environmental Health, Instituto de Salud Carlos III, 28220 Majadahonda, Spain; (M.E.-L.); (A.C.)
| | - Argelia Castaño
- National Centre for Environmental Health, Instituto de Salud Carlos III, 28220 Majadahonda, Spain; (M.E.-L.); (A.C.)
| | - Jos Bessems
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
| | - Greet Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium;
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium; (L.G.); (K.G.); (M.L.); (J.B.); (G.S.); (E.G.)
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7
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Krithivasan R, Miller GZ, Belliveau M, Gearhart J, Krishnamoorthi V, Lee S, Kannan K. Analysis of ortho-phthalates and other plasticizers in select organic and conventional foods in the United States. J Expo Sci Environ Epidemiol 2023; 33:778-786. [PMID: 37726506 DOI: 10.1038/s41370-023-00596-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/08/2023] [Accepted: 08/15/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND ortho-phthalates and other plasticizers impart flexibility to plastics in food production, processing, and packaging; food consumption is a dominant plasticizer exposure pathway. Lower molecular weight ortho-phthalates are being replaced in plastic products due to toxicity concerns, but toxic hazards of and exposures to replacement ortho-phthalates and other plasticizers are poorly understood. OBJECTIVE We measured 12 ortho-phthalates and 9 other plasticizers in conventional and organic U.S. food products to assess magnitude and profiles of contamination. METHODS We measured plasticizers in 34 vegetable oils, 10 milks, 18 infant formulas, and 9 cheese powders from macaroni kits using gas chromatography coupled with mass spectrometry (GC-MS). We analyzed plastic packaging composition using FTIR spectroscopy. RESULTS We detected eight ortho-phthalates and three alternatives ((1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH), diethylhexyl terephthalate (DEHT), and diisobutyl adipate (DIBA). Diethylhexyl phthalate (DEHP) was measured in all 71 products. DEHT had the highest concentration of any plasticizer (>10,000 ng/g in three oils). Oils had the highest total plasticizer (median = 770 ng/g, max = 14,900 ng/g) and milk the lowest (median = 88 ng/g, max = 120 ng/g). Organic milk and refined oils had higher median plasticizer levels than conventional. Refined oils had significantly lower concentrations than unrefined oils. Maximum contributors for every category were non-ortho-phthalates: DEHT (powdered infant formula and oils) and DIBA (cheese powder, milk and liquid formula). Plasticizers were not detected in packaging except epoxidized soybean oil in liquid formula lids. IMPACT STATEMENT Human exposure to plasticizers is a significant public health concern. Nevertheless, sources of such exposures are poorly characterized. This study adds valuable information for estimating legacy and alternative plasticizer exposures from foods. The method developed for measuring DINCH, DINP and DIDP broadens the range of plasticizers other researchers may analyze in future work. The profiles of plasticizer contamination varied depending on the food type. We also document that food processing may be a source of plasticizer contamination in foods.
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Affiliation(s)
| | | | | | | | | | - Sunmi Lee
- Department of Pediatrics, New York University Grossman School of Medicine, New York, NY, 10016, USA
| | - Kurunthachalam Kannan
- Division of Environmental Health Sciences, Wadsworth Center, Empire State Plaza, Albany, NY, 12201, USA
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8
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Cox B, Wauters N, Rodríguez-Carrillo A, Portengen L, Gerofke A, Kolossa-Gehring M, Lignell S, Lindroos AK, Fabelova L, Murinova LP, Desalegn A, Iszatt N, Schillemans T, Åkesson A, Colles A, Den Hond E, Koppen G, Van Larebeke N, Schoeters G, Govarts E, Remy S. PFAS and Phthalate/ DINCH Exposure in Association with Age at Menarche in Teenagers of the HBM4EU Aligned Studies. Toxics 2023; 11:711. [PMID: 37624216 PMCID: PMC10459167 DOI: 10.3390/toxics11080711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Early puberty has been found to be associated with adverse health outcomes such as metabolic and cardiovascular diseases and hormone-dependent cancers. The decrease in age at menarche observed during the past decades has been linked to an increased exposure to endocrine-disrupting compounds (EDCs). Evidence for the association between PFAS and phthalate exposure and menarche onset, however, is inconsistent. We studied the association between PFAS and phthalate/DINCH exposure and age at menarche using data of 514 teenagers (12 to 18 years) from four aligned studies of the Human Biomonitoring for Europe initiative (HBM4EU): Riksmaten Adolescents 2016-2017 (Sweden), PCB cohort (follow-up; Slovakia), GerES V-sub (Germany), and FLEHS IV (Belgium). PFAS concentrations were measured in blood, and phthalate/DINCH concentrations in urine. We assessed the role of each individual pollutant within the context of the others, by using different multi-pollutant approaches, adjusting for age, age- and sex-standardized body mass index z-score and household educational level. Exposure to di(2-ethylhexyl) phthalate (DEHP), especially mono(2-ethyl-5-hydroxyhexyl) phthalate (5OH-MEHP), was associated with an earlier age at menarche, with estimates per interquartile fold change in 5OH-MEHP ranging from -0.34 to -0.12 years in the different models. Findings from this study indicated associations between age at menarche and some specific EDCs at concentrations detected in the general European population, but due to the study design (menarche onset preceded the chemical measurements), caution is needed in the interpretation of causality.
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Affiliation(s)
- Bianca Cox
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Natasha Wauters
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Andrea Rodríguez-Carrillo
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
- Toxicological Centre, University of Antwerp, Universiteitsplein, 1, 2610 Wilrijk, Belgium
| | - Lützen Portengen
- Institute for Risk Assessment Sciences, Utrecht University, 3584 Utrecht, The Netherlands;
| | - Antje Gerofke
- German Environment Agency, Umweltbundesamt (UBA), 14195 Berlin, Germany; (A.G.); (M.K.-G.)
| | - Marike Kolossa-Gehring
- German Environment Agency, Umweltbundesamt (UBA), 14195 Berlin, Germany; (A.G.); (M.K.-G.)
| | - Sanna Lignell
- Swedish Food Agency, 751 26 Uppsala, Sweden; (S.L.); (A.K.L.)
| | | | - Lucia Fabelova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 831 01 Bratislava, Slovakia; (L.F.); (L.P.M.)
| | - Lubica Palkovicova Murinova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 831 01 Bratislava, Slovakia; (L.F.); (L.P.M.)
| | - Anteneh Desalegn
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.D.); (N.I.)
| | - Nina Iszatt
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, 0456 Oslo, Norway; (A.D.); (N.I.)
| | - Tessa Schillemans
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (T.S.); (A.Å.)
| | - Agneta Åkesson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden; (T.S.); (A.Å.)
| | - Ann Colles
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Elly Den Hond
- Provincial Institute of Hygiene, Provincial Research Centre for Environment and Health, 2023 Antwerp, Belgium;
| | - Gudrun Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Nicolas Van Larebeke
- Analytical, Environmental and Geo-Chemistry, Vrije Universiteit Brussel, 1050 Brussels, Belgium;
| | - Greet Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
- Department of Biomedical Sciences, University of Antwerp, 2000 Antwerp, Belgium
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
| | - Sylvie Remy
- VITO Health, Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium; (N.W.); (A.R.-C.); (A.C.); (G.K.); (G.S.); (E.G.); (S.R.)
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9
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Ketema RM, Kasper-Sonnenberg M, Ait Bamai Y, Miyashita C, Koch HM, Pälmke C, Kishi R, Ikeda A. Exposure Trends to the Non-phthalate Plasticizers DEHTP, DINCH, and DEHA in Children from 2012 to 2017: The Hokkaido Study. Environ Sci Technol 2023; 57:11926-11936. [PMID: 37506071 DOI: 10.1021/acs.est.3c03172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Phthalates owing to their endocrine-disrupting effects are regulated in certain products, leading to their replacement with substitutions such as di-2-ethylhexyl terephthalate (DEHTP), 1,2-cyclohexane dicarboxylic acid di(isononyl) ester (DINCH), and di(2-ethylhexyl) adipate (DEHA). However, information on human exposure to these substitutes, especially in susceptible subpopulations such as children, is limited. Thus, we examined the levels and exposure trends of DEHTP, DINCH, and DEHA metabolites in 7 year-old Japanese school children. In total, 180 urine samples collected from 2012 to 2017 were used to quantify 10 DEHTP, DINCH, and DEHA metabolites via isotope dilution liquid chromatography with tandem mass spectrometry. DEHTP and DINCH metabolites were detected in 95.6 and 92.2% of the children, respectively, and DEHA was not detected. This study, annually conducted between 2012 and 2017, revealed a significant (p < 0.05) 5-fold increase in DEHTP metabolites and a 2-fold increase in DINCH metabolites. However, the maximum estimated internal exposures were still below the health-based guidance and toxicological reference values. Exposure levels to DEHTP and DINCH have increased considerably in Japanese school children. DEHA is less relevant. Future studies are warranted to closely monitor the increasing trend in different aged and larger populations and identify the potential health effects and sources contributing to increasing exposure and intervene if necessary.
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Affiliation(s)
- Rahel Mesfin Ketema
- Center for Environmental and Health Sciences, Hokkaido University, North 12, West 7, Sapporo 060-0812, Japan
- Faculty of Health Sciences, Hokkaido University, North 12, West 5, Sapporo 060-0812, Japan
| | - Monika Kasper-Sonnenberg
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, Bochum 44789, Germany
| | - Yu Ait Bamai
- Center for Environmental and Health Sciences, Hokkaido University, North 12, West 7, Sapporo 060-0812, Japan
- Toxicological Center, University of Antwerp, Universiteitsplein 1, Wilrijk 2610, Belgium
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, North 12, West 7, Sapporo 060-0812, Japan
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, Bochum 44789, Germany
| | - Claudia Pälmke
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, Bochum 44789, Germany
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, North 12, West 7, Sapporo 060-0812, Japan
| | - Atsuko Ikeda
- Center for Environmental and Health Sciences, Hokkaido University, North 12, West 7, Sapporo 060-0812, Japan
- Faculty of Health Sciences, Hokkaido University, North 12, West 5, Sapporo 060-0812, Japan
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10
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Vogel N, Schmidt P, Lange R, Gerofke A, Sakhi AK, Haug LS, Jensen TK, Frederiksen H, Szigeti T, Csákó Z, Murinova LP, Sidlovska M, Janasik B, Wasowicz W, Tratnik JS, Mazej D, Gabriel C, Karakitsios S, Barbone F, Rosolen V, Rambaud L, Riou M, Murawski A, Leseman D, Koppen G, Covaci A, Lignell S, Lindroos AK, Zvonar M, Andryskova L, Fabelova L, Richterova D, Horvat M, Kosjek T, Sarigiannis D, Maroulis M, Pedraza-Diaz S, Cañas A, Verheyen VJ, Bastiaensen M, Gilles L, Schoeters G, Esteban-López M, Castaño A, Govarts E, Koch HM, Kolossa-Gehring M. Current exposure to phthalates and DINCH in European children and adolescents - Results from the HBM4EU Aligned Studies 2014 to 2021. Int J Hyg Environ Health 2023; 249:114101. [PMID: 36805185 DOI: 10.1016/j.ijheh.2022.114101] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 02/19/2023]
Abstract
Phthalates are mainly used as plasticizers for polyvinyl chloride (PVC). Exposure to several phthalates is associated with different adverse effects most prominently on the development of reproductive functions. The HBM4EU Aligned Studies (2014-2021) have investigated current European exposure to ten phthalates (DEP, BBzP, DiBP, DnBP, DCHP, DnPeP, DEHP, DiNP, DiDP, DnOP) and the substitute DINCH to answer the open policy relevant questions which were defined by HBM4EU partner countries and EU institutions as the starting point of the programme. The exposure dataset includes ∼5,600 children (6-11 years) and adolescents (12-18 years) from up to 12 countries per age group and covering the North, East, South and West European regions. Study data from participating studies were harmonised with respect to sample size and selection of participants, selection of biomarkers, and quality and comparability of analytical results to provide a comparable perspective of European exposure. Phthalate and DINCH exposure were deduced from urinary excretions of metabolites, where concentrations were expressed as their key descriptor geometric mean (GM) and 95th percentile (P95). This study aims at reporting current exposure levels and differences in these between European studies and regions, as well as comparisons to human biomonitoring guidance values (HBM-GVs). GMs for children were highest for ∑DEHP metabolites (33.6 μg/L), MiBP (26.6 μg/L), and MEP (24.4 μg/L) and lowest for∑DiDP metabolites (1.91 μg/L) and ∑DINCH metabolites (3.57 μg/L). In adolescents highest GMs were found for MEP (43.3 μg/L), ∑DEHP metabolites (28.8 μg/L), and MiBP (25.6 μg/L) and lowest for ∑DiDP metabolites (= 2.02 μg/L) and ∑DINCH metabolites (2.51 μg/L). In addition, GMs and P95 stratified by European region, sex, household education level, and degree of urbanization are presented. Differences in average biomarker concentrations between sampling sites (data collections) ranged from factor 2 to 9. Compared to the European average, children in the sampling sites OCC (Denmark), InAirQ (Hungary), and SPECIMEn (The Netherlands) had the lowest concentrations across all metabolites and ESTEBAN (France), NAC II (Italy), and CROME (Greece) the highest. For adolescents, comparably higher metabolite concentrations were found in NEB II (Norway), PCB cohort (Slovakia), and ESTEBAN (France), and lower concentrations in POLAES (Poland), FLEHS IV (Belgium), and GerES V-sub (Germany). Multivariate analyses (Survey Generalized Linear Models) indicate compound-specific differences in average metabolite concentrations between the four European regions. Comparison of individual levels with HBM-GVs revealed highest rates of exceedances for DnBP and DiBP, with up to 3 and 5%, respectively, in children and adolescents. No exceedances were observed for DEP and DINCH. With our results we provide current, detailed, and comparable data on exposure to phthalates in children and - for the first time - in adolescents, and - for the first time - on DINCH in children and adolescents of all four regions of Europe which are particularly suited to inform exposure and risk assessment and answer open policy relevant questions.
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Affiliation(s)
- Nina Vogel
- German Environment Agency (UBA), Berlin, Germany.
| | | | - Rosa Lange
- German Environment Agency (UBA), Berlin, Germany
| | | | | | - Line S Haug
- Norwegian Institute of Public Health, Oslo, Norway
| | - Tina Kold Jensen
- IST - Clinical Pharmacology, Pharmacy and Environmental Medicine, Odense, Denmark
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | | | - Zsófia Csákó
- National Public Health Center, Budapest, Hungary
| | | | | | - Beata Janasik
- Nofer Institute of Occupational Medicine, Lodz, Poland
| | | | - Janja Snoj Tratnik
- Jozef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Darja Mazej
- Jozef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Catherine Gabriel
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece; HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Thessaloniki-Thermi, Greece
| | - Spyros Karakitsios
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece; HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Thessaloniki-Thermi, Greece
| | - Fabio Barbone
- Department of Medicine-DAME, University of Udine, Udine, Italy
| | - Valentina Rosolen
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Trieste, Italy
| | - Loïc Rambaud
- Santé publique France, Environmental and Occupational Health Division, Saint-Maurice, France
| | - Margaux Riou
- Santé publique France, Environmental and Occupational Health Division, Saint-Maurice, France
| | | | - Daan Leseman
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Gudrun Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Adrian Covaci
- Toxicological Center, University of Antwerp, Wilrijk, Belgium
| | | | | | - Martin Zvonar
- RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Lenka Andryskova
- RECETOX, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Lucia Fabelova
- Slovak Medical University, Faculty of Public Health, Bratislava, Slovakia
| | - Denisa Richterova
- Slovak Medical University, Faculty of Public Health, Bratislava, Slovakia
| | - Milena Horvat
- Jozef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Tina Kosjek
- Jozef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Denis Sarigiannis
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece; HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Thessaloniki-Thermi, Greece; Environmental Health Engineering, Institute of Advanced Study, Pavia, Italy
| | - Marios Maroulis
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece; HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Thessaloniki-Thermi, Greece
| | - Susana Pedraza-Diaz
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Ana Cañas
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Veerle J Verheyen
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | | | - Liese Gilles
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Greet Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium; University of Antwerp, Dept of Biomedical Sciences and Toxicological Centre, Antwerp, Belgium
| | - Marta Esteban-López
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Argelia Castaño
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
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11
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Coiffier O, Nakiwala D, Rolland M, Malatesta A, Lyon-Caen S, Chovelon B, Faure P, Sophie Gauchez A, Guergour D, Sakhi AK, Sabaredzovic A, Thomsen C, Pin I, Slama R, Corne C, Philippat C. Exposure to a mixture of non-persistent environmental chemicals and neonatal thyroid function in a cohort with improved exposure assessment. Environ Int 2023; 173:107840. [PMID: 36857904 DOI: 10.1016/j.envint.2023.107840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND In vitro and toxicological studies have shown that non-persistent environmental chemicals can perturb thyroid hormone homeostasis. Epidemiological studies with improved exposure assessment (i.e., repeated urine samples) are needed to evaluate effects of these compounds, individually or as a mixture, in humans. We studied the associations between prenatal exposure to non-persistent environmental chemicals and neonatal thyroid hormones. METHODS The study population consisted of 442 mother-child pairs from the French SEPAGES mother-child cohort recruited between July 2014 and July 2017. For each participant, four parabens, five bisphenols, triclosan, triclocarban, benzophenone-3 as well as metabolites of phthalates and of di(isononyl)cyclohexane-1,2-dicarboxylate were assessed in two pools of repeated urine samples (median: 21 spot urines per pool), collected in the 2nd and 3rd trimesters of pregnancy, respectively. Thyroid stimulating hormone (TSH) and total thyroxine (T4) levels were determined in newborns from a heel-prick blood spot. Maternal iodine and selenium were assessed in urine and serum, respectively. Adjusted linear regression (uni-pollutant model) and Bayesian Kernel Machine Regression (BKMR, mixture model) were applied to study overall and sex-stratified associations between chemicals and hormone concentrations. RESULTS Interaction with child sex was detected for several compounds. Triclosan, three parabens, and one phthalate metabolite (OH-MPHP) were negatively associated with T4 among girls in the uni-pollutant model. BKMR also suggested a negative association between the mixture and T4 in girls, whereas in boys the association was positive. The mixture was not linked to TSH levels, and for this hormone the uni-pollutant model revealed associations with only a few compounds. CONCLUSION Our study, based on repeated urine samples to assess exposure, showed that prenatal exposure to some phenols and phthalates disturb thyroid hormone homeostasis at birth. Furthermore, both uni-pollutant and mixture models, suggested effect modification by child sex, while, to date underlying mechanisms for such sex-differences are not well understood.
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Affiliation(s)
- Ophélie Coiffier
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Dorothy Nakiwala
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Matthieu Rolland
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Andres Malatesta
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Sarah Lyon-Caen
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Benoît Chovelon
- Département de Pharmacochimie Moléculaire, Université Grenoble Alpes, CNRS, UMR 5063, F-38041 Grenoble, France; Service de Biochimie SB2TE, Institut de Biologie et Pathologie CHU Grenoble Alpes, France
| | - Patrice Faure
- Département de Pharmacochimie Moléculaire, Université Grenoble Alpes, CNRS, UMR 5063, F-38041 Grenoble, France; Service de Biochimie SB2TE, Institut de Biologie et Pathologie CHU Grenoble Alpes, France
| | - Anne Sophie Gauchez
- Service de Biochimie SB2TE, Institut de Biologie et Pathologie CHU Grenoble Alpes, France
| | - Dorra Guergour
- Service de Biochimie SB2TE, Institut de Biologie et Pathologie CHU Grenoble Alpes, France
| | | | | | | | - Isabelle Pin
- Pediatric Department, Grenoble University Hospital, 38700 La Tronche, France
| | - Rémy Slama
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France
| | - Christelle Corne
- Service de Biochimie SB2TE, Institut de Biologie et Pathologie CHU Grenoble Alpes, France
| | - Claire Philippat
- University Grenoble Alpes, Inserm U1209, CNRS UMR 5309, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences, 38000 Grenoble, France.
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12
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Useini A, Engelberger F, Künze G, Sträter N. Structural basis of the activation of PPARγ by the plasticizer metabolites MEHP and MINCH. Environ Int 2023; 173:107822. [PMID: 36841188 DOI: 10.1016/j.envint.2023.107822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/20/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Di-2-ethylhexyl phthalate (DEHP) and its substitute 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) are widely used as plasticizers but may have adverse health effects. Via hydrolysis of one of the two ester bonds in the human body, DEHP and DINCH form the monoesters MEHP and MINCH, respectively. Previous studies demonstrated binding of these metabolites to PPARγ and the induction of adipogenesis via this pathway. Detailed structural understanding of how these metabolites interact with PPARγ and thereby affect human health is lacking until now. We therefore characterized the binding modes of MINCH and MEHP to the ligand binding domain of PPARγ by X-ray crystallography and molecular dynamics (MD) simulations. Both compounds bind to the activating function-2 (AF-2) binding site via an interaction of the free carboxylates with the histidines 323 and 449, tyrosine 473 and serine 289. The alkyl chains form hydrophobic interactions with the tunnel next to cysteine 285. These binding modes are generally stable as demonstrated by the MD simulations and they resemble the complexation of fatty acids and their metabolites to the AF-2 site of PPARγ. Similar to the situation for these natural PPARγ agonists, the interaction of the free carboxylate groups of MEHP and MINCH with tyrosine 473 and surrounding residues stabilizes the AF-2 helix in the upward conformation. This state promotes binding of coactivator proteins and thus formation of the active complex for transcription of the specific target genes. Moreover, a comparison of the residues involved in binding of the plasticizer metabolites in vertebrate PPARγ orthologs shows that these compounds likely have similar effects in other species.
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Affiliation(s)
- Abibe Useini
- Institute of Bioanalytical Chemistry, Centre for Biotechnology and Biomedicine, Leipzig University, Deutscher Platz 5, 04103 Leipzig, Germany
| | - Felipe Engelberger
- Institute for Drug Discovery, Leipzig University, Brüderstraße 34, 04103 Leipzig, Germany
| | - Georg Künze
- Institute for Drug Discovery, Leipzig University, Brüderstraße 34, 04103 Leipzig, Germany.
| | - Norbert Sträter
- Institute of Bioanalytical Chemistry, Centre for Biotechnology and Biomedicine, Leipzig University, Deutscher Platz 5, 04103 Leipzig, Germany.
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13
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Vogel N, Frederiksen H, Lange R, Jørgensen N, Koch HM, Weber T, Andersson AM, Kolossa-Gehring M. Urinary excretion of phthalates and the substitutes DINCH and DEHTP in Danish young men and German young adults between 2000 and 2017 - A time trend analysis. Int J Hyg Environ Health 2023; 248:114080. [PMID: 36657282 DOI: 10.1016/j.ijheh.2022.114080] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 01/18/2023]
Abstract
Over the last twenty-five years it has become evident that exposure to several phthalates can have adverse effects on human health, such as endocrine disruption. This led to a series of EU regulations that resulted in a decrease in the production volumes of the restricted phthalates and an increased production of substitutes. The current study describes the impact of regulations and changes in production and use of phthalates and their substitutes on internal exposure patterns in two European populations since the beginning of the 2000'ies. Using harmonised data from young adults in Denmark (Danish Young Men Study, n = 1,063, spot urine) and Germany (Environmental Specimen Bank, n = 878, 24-h urine) with repeated cross-sectional design (3-11 cycles per biomarker) we applied Locally Estimated Scatterplot Smoothing (LOESS) and Generalized Linear Models (GLMs) to estimate time trends and the role of covariates on the trend (e.g. age, BMI). Time trends of daily excretion (μg/24h) are comparable between the two samples for the regulated (DEHP, BBzP, DiNP, DnBP, DiBP, DiDP/DPHP) as well as the non-regulated substances (DMP, DEP, DINCH, DEHTP) although the rate of change differ for some of the compounds. GLM results indicate that the daily excretion of the most regulated phthalates has decreased over time (DEHP yearly about 12-16%, BBzP 5%, DnBP 0.3-17%, and DiBP 4-12%). Interestingly, also the non-regulated phthalates DMP and DEP decreased by 6-18% per year. In sharp contrast, the phthalate substitutes DINCH and DEHTP show very steep annual increases (∼10-68% and ∼100%, respectively) between 2009 and 2017. We did not find an effect of age, sex, BMI, or education on the time trend. The present study provides comparable insights into how exposure to phthalates and two of their substitutes have changed over the last two decades in Germany and Denmark.
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Affiliation(s)
- Nina Vogel
- German Environment Agency (UBA), Berlin, Germany.
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Denmark
| | - Rosa Lange
- German Environment Agency (UBA), Berlin, Germany
| | - Niels Jørgensen
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Denmark
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bochum, Germany
| | - Till Weber
- German Environment Agency (UBA), Berlin, Germany
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital - Rigshospitalet, Denmark
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14
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Gerofke A, David M, Schmidt P, Vicente JL, Buekers J, Gilles L, Colles A, Bessems J, Bastiaensen M, Covaci A, Den Hond E, Koppen G, Laeremans M, Verheyen VJ, Černá M, Klánová J, Krsková A, Zvonař M, Knudsen LE, Koch HM, Jensen TK, Rambaud L, Riou M, Vogel N, Gabriel C, Karakitsios S, Papaioannou N, Sarigiannis D, Kakucs R, Középesy S, Rudnai P, Szigeti T, Barbone F, Rosolen V, Guignard C, Gutleb AC, Sakhi AK, Haug LS, Janasik B, Ligocka D, Estokova M, Fabelova L, Kolena B, Murinova LP, Petrovicova I, Richterova D, Horvat M, Mazej D, Tratnik JS, Runkel AA, Castaño A, Esteban-López M, Pedraza-Díaz S, Åkesson A, Lignell S, Vlaanderen J, Zock JP, Schoeters G, Kolossa-Gehring M. From science to policy: How European HBM indicators help to answer policy questions related to phthalates and DINCH exposure. Int J Hyg Environ Health 2023; 247:114073. [PMID: 36434900 PMCID: PMC9758616 DOI: 10.1016/j.ijheh.2022.114073] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 10/19/2022] [Accepted: 11/07/2022] [Indexed: 11/25/2022]
Abstract
Within the European Human Biomonitoring (HBM) Initiative HBM4EU we derived HBM indicators that were designed to help answering key policy questions and support chemical policies. The result indicators convey information on chemicals exposure of different age groups, sexes, geographical regions and time points by comparing median exposure values. If differences are observed for one group or the other, policy measures or risk management options can be implemented. Impact indicators support health risk assessment by comparing exposure values with health-based guidance values, such as human biomonitoring guidance values (HBM-GVs). In general, the indicators should be designed to translate complex scientific information into short and clear messages and make it accessible to policy makers but also to a broader audience such as stakeholders (e.g. NGO's), other scientists and the general public. Based on harmonized data from the HBM4EU Aligned Studies (2014-2021), the usefulness of our indicators was demonstrated for the age group children (6-11 years), using two case examples: one phthalate (Diisobutyl phthalate: DiBP) and one non-phthalate substitute (Di-isononyl cyclohexane-1,2- dicarboxylate: DINCH). For the comparison of age groups, these were compared to data for teenagers (12-18 years), and time periods were compared using data from the DEMOCOPHES project (2011-2012). Our result indicators proved to be suitable for demonstrating the effectiveness of policy measures for DiBP and the need of continuous monitoring for DINCH. They showed similar exposure for boys and girls, indicating that there is no need for gender focused interventions and/or no indication of sex-specific exposure patterns. They created a basis for a targeted approach by highlighting relevant geographical differences in internal exposure. An adequate data basis is essential for revealing differences for all indicators. This was particularly evident in our studies on the indicators on age differences. The impact indicator revealed that health risks based on exposure to DiBP cannot be excluded. This is an indication or flag for risk managers and policy makers that exposure to DiBP still is a relevant health issue. HBM indicators derived within HBM4EU are a valuable and important complement to existing indicator lists in the context of environment and health. Their applicability, current shortcomings and solution strategies are outlined.
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Affiliation(s)
- Antje Gerofke
- German Environment Agency (UBA), Corrensplatz 1, 14195, Berlin, Germany,Corresponding author.
| | - Madlen David
- German Environment Agency (UBA), Corrensplatz 1, 14195, Berlin, Germany
| | - Phillipp Schmidt
- German Environment Agency (UBA), Corrensplatz 1, 14195, Berlin, Germany
| | - Joana Lobo Vicente
- European Environment Agency, Kongens Nytorv 6, 1050, Copenhagen, Denmark
| | - Jurgen Buekers
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Liese Gilles
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Ann Colles
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Jos Bessems
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | | | - Adrian Covaci
- Toxicological Center, University of Antwerp, 2610 Wilrijk, Belgium
| | | | - Gudrun Koppen
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Michelle Laeremans
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Veerle J. Verheyen
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
| | - Milena Černá
- National Institute of Public Health, Prague, Czech Republic
| | - Jana Klánová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Andrea Krsková
- National Institute of Public Health, Prague, Czech Republic
| | - Martin Zvonař
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic,Faculty of Sport Studies, Masaryk University, Kamenice 753/5, Brno, Czech Republic
| | - Lisbeth E. Knudsen
- Department of Public Health, University of Copenhagen Øster Farimagsgade 5 DK Copenhagen, Denmark
| | - Holger M. Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance − Institute of the Ruhr University Bochum (IPA), 44789, Bochum, Germany
| | - Tina Kold Jensen
- Faculty of Health Sciences, Department of Public Health, Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | - Loïc Rambaud
- Santé publique France, French Public Health Agency (SpFrance), Saint-Maurice, France
| | - Margaux Riou
- Santé publique France, French Public Health Agency (SpFrance), Saint-Maurice, France
| | - Nina Vogel
- German Environment Agency (UBA), Corrensplatz 1, 14195, Berlin, Germany
| | - Catherine Gabriel
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece,HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001, Greece
| | - Spyros Karakitsios
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece,HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001, Greece
| | - Nafsika Papaioannou
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece,HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001, Greece
| | - Denis Sarigiannis
- Environmental Engineering Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece,HERACLES Research Center on the Exposome and Health, Center for Interdisciplinary Research and Innovation, Balkan Center, Bldg. B, 10th km Thessaloniki-Thermi Road, 57001, Greece,Environmental Health Engineering, Institute of Advanced Study, Palazzo del Broletto - Piazza Della Vittoria 15, 27100, Pavia, Italy
| | - Réka Kakucs
- National Public Health Center, Albert Flórián út 2-6., 1097, Budapest, Hungary
| | - Szilvia Középesy
- National Public Health Center, Albert Flórián út 2-6., 1097, Budapest, Hungary
| | - Péter Rudnai
- National Public Health Center, Albert Flórián út 2-6., 1097, Budapest, Hungary
| | - Tamás Szigeti
- National Public Health Center, Albert Flórián út 2-6., 1097, Budapest, Hungary
| | - Fabio Barbone
- Department of Medicine—DAME, University of Udine, Via Colugna 50, 33100, Udine, Italy
| | - Valentina Rosolen
- Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", 34137, Trieste, Italy
| | - Cedric Guignard
- Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation (ERIN) Department, 41, rue du Brill, L-4422 Belvaux, Luxembourg
| | - Arno C. Gutleb
- Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation (ERIN) Department, 41, rue du Brill, L-4422 Belvaux, Luxembourg
| | | | | | - Beata Janasik
- Nofer Institute of Occupational Medicine, St. Teresy 8, Lodz, Poland
| | - Danuta Ligocka
- Nofer Institute of Occupational Medicine, St. Teresy 8, Lodz, Poland
| | - Milada Estokova
- Public Health Authority of the Slovak Republic, Trnavska cesta 52, 826 45, Bratislava, Slovakia
| | - Lucia Fabelova
- Slovak Medical University, Faculty of Public Health, Limbova 12, 83303 Bratislava, Slovakia
| | - Branislav Kolena
- Constantine the Philosopher University in Nitra, Tr. A Hlinku 1, 94901 Nitra, Slovakia
| | | | - Ida Petrovicova
- Constantine the Philosopher University in Nitra, Tr. A Hlinku 1, 94901 Nitra, Slovakia
| | - Denisa Richterova
- Slovak Medical University, Faculty of Public Health, Limbova 12, 83303 Bratislava, Slovakia
| | - Milena Horvat
- Jožef Stefan Institute, Department of Environmental Sciences, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Darja Mazej
- Jožef Stefan Institute, Department of Environmental Sciences, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Janja Snoj Tratnik
- Jožef Stefan Institute, Department of Environmental Sciences, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Agneta Annika Runkel
- Jožef Stefan Institute, Department of Environmental Sciences, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Argelia Castaño
- National Centre for Environmental Health, Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Esteban-López
- National Centre for Environmental Health, Instituto de Salud Carlos III, Madrid, Spain
| | - Susana Pedraza-Díaz
- National Centre for Environmental Health, Instituto de Salud Carlos III, Madrid, Spain
| | - Agneta Åkesson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sanna Lignell
- Swedish Food Agency, PO Box 622, SE-751 26, Uppsala, Sweden
| | - Jelle Vlaanderen
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, the Netherlands
| | - Jan-Paul Zock
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Greet Schoeters
- VITO – Flemish Institute for Technological Research, Unit Health, Boeretang 200, 2400, Mol, Belgium
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15
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Pirard C, Charlier C. Urinary levels of parabens, phthalate metabolites, bisphenol A and plasticizer alternatives in a Belgian population: Time trend or impact of an awareness campaign? Environ Res 2022; 214:113852. [PMID: 35820649 DOI: 10.1016/j.envres.2022.113852] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
A human biomonitoring study was carried out in 2015 within an adult population living in Liege (Belgium). Some phthalate metabolites and parabens were measured in the urine of 252 participants, and information were collected about their food habits, life styles and home environment to identify some predictors of exposure. Concomitantly, an awareness campaign was initiated by the Provincial Authorities of Liege and spread over 2 years. Three years later (2018), 92 of the initial participants provided again urine samples, and the levels of phthalate metabolites, phthalate substitute (DINCH), parabens, bisphenol-A and bisphenol alternatives (bisphenol-S, -F, -Z, -P) were determined and compared to those obtained in 2015 to assess time trends. In 2015, methyl- and ethylparaben were the most abundant parabens (P50 = 9.12 μg/L and 1.1 μg/L respectively), while propyl- and butylparaben were sparsely detected. Except for mono-2-ethylhexyl phthalate and 6-OH-mono-propyl-heptyl phthalate, all other targeted phthalate metabolites were positively quantified in most of the urine samples (between 89 and 98%) with median concentrations ranging between 2.7 μg/L and 21.3 μg/L depending on the metabolite. The multivariate regression models highlighted some significant associations between urinary phthalate metabolite or paraben levels and age, rural or urban character of the residence place, and the use of some personal care products. However, all determination coefficients were weak meaning that the usual covariates included in the models only explained a small part of the variance. Between 2015 and 2018, levels of parabens and phthalate metabolites significantly decreased (from 1.3 to 2.5 fold) except for monoethyl phthalate which seemed to remain quite constant. Contrariwise, all bisphenol alternatives and DINCH metabolites were measured in higher concentrations in 2018 vs 2015 while BPA levels did not differ significantly. However, it was not feasible to unequivocally highlight an impact of the awareness campaign on the exposure levels of the population.
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Affiliation(s)
- Catherine Pirard
- Laboratory of Clinical, Forensic and Environmental Toxicology, CHU of Liege, B35, 4000, Liege, Belgium; Center for Interdisciplinary Research on Medicines (CIRM), University of Liege (ULiege), CHU (B35), 4000, Liege, Belgium.
| | - Corinne Charlier
- Laboratory of Clinical, Forensic and Environmental Toxicology, CHU of Liege, B35, 4000, Liege, Belgium; Center for Interdisciplinary Research on Medicines (CIRM), University of Liege (ULiege), CHU (B35), 4000, Liege, Belgium
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Fruh V, Preston EV, Quinn MR, Hacker MR, Wylie BJ, O'Brien K, Hauser R, James-Todd T, Mahalingaiah S. Urinary phthalate metabolite concentrations and personal care product use during pregnancy - Results of a pilot study. Sci Total Environ 2022; 835:155439. [PMID: 35469886 PMCID: PMC11040873 DOI: 10.1016/j.scitotenv.2022.155439] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/14/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Phthalates are reproductive toxicants commonly found in personal care products (PCPs). These endocrine disrupting chemicals are associated with pregnancy complications, including gestational diabetes. Yet, little is known about PCP use as a contributor to urinary phthalate metabolite concentrations in pregnancy. METHODS We conducted a pilot study among 108 pregnant participants to examine the associations of self-reported PCP use with 14 phthalate and 2 DINCH (di(isononyl) cyclohexane-1,2-dicarboxylate) metabolite concentrations measured in single spot urine samples during pregnancy (median: 36 weeks of gestation). At the time of urine collection, participants self-reported use of hair products (within the last month) and other PCPs (within the last 48 h). We used linear regression to estimate associations for natural log-transformed, specific gravity-corrected concentrations of common PCP-associated phthalate metabolites (monoethyl phthalate [MEP], mono-n-butyl phthalate [MBP], and mono-isobutyl phthalate [MIBP]) in our primary analyses, and additional phthalate metabolites in secondary analyses. RESULTS Most urinary metabolites were detected for >90% of participants. Participants who reported using hair oil within the past month had MEP concentrations 125% higher (95% confidence interval [CI]: -0.1, 408) than non-users. For other personal care products, we observed the greatest percent difference in PCP-associated metabolites for MIBP among hair gel users (39.3%, 95% CI: -6.3, 107) and for MEP among conditioner/crème rinse users (-55.4%, 95% CI: -76.4, -15.6) compared to non-users. CONCLUSION Findings suggest that self-reported use of hair oils during late pregnancy may be associated with higher urinary concentrations of MEP. Hair gel use in late pregnancy may also be associated with higher urinary phthalate metabolite concentrations, while conditioner/crème rinse use may be associated with lower levels if MEP.
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Affiliation(s)
- Victoria Fruh
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Emma V Preston
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Marlee R Quinn
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Michele R Hacker
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Blair J Wylie
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
| | - Karen O'Brien
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Tamarra James-Todd
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
| | - Shruthi Mahalingaiah
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States; Department of Obstetrics & Gynecology, Massachusetts General Hospital, Boston, MA, United States.
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Frederiksen H, Upners EN, Ljubicic ML, Fischer MB, Busch AS, Hagen CP, Juul A, Andersson AM. Exposure to 15 phthalates and two substitutes (DEHTP and DINCH) assessed in trios of infants and their parents as well as longitudinally in infants exclusively breastfed and after the introduction of a mixed diet. Environ Int 2022; 161:107107. [PMID: 35091377 DOI: 10.1016/j.envint.2022.107107] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/07/2021] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Several phthalates have been restricted/banned due to their adverse endocrine disrupting properties. The use of other phthalates and substitutes has increased. Here we examine the current exposure to phthalates in family trios comprised of infants and their parents and in infants exclusive breastfed and following introduction to a mixed diet. METHODS Metabolites of 15 phthalates and two substitutes, di(2-ethylhexyl)-teraphthalate (DEHTP) and diisononyl-cyclohexane-1,2-dicarboxylate (DINCH), were measured in urine samples collected from >100 infants and their parents and in paired urine samples collected from 67 infants, while they were exclusively breastfed and when they got mixed diet. RESULTS Among infants and their parents, metabolites of nine out of 15 phthalates and both substitutes were detected in >74% of all samples. Estimated daily intake (DI) calculated as µg/kg/day, showed similar exposure levels among infants and their parents for several of the substances, and infants were more exposed to DEHTP than their mothers. Significantly higher estimated DIs were observed for some low-molecular phthalates in infants exclusively breastfed. In contrast, comparable estimated DIs were observed for many other phthalates and DEHTP regardless of feeding status. For most of the substances, the within-family variation, was lower than the between-family variation. Likewise, the within-infant variation on exclusively breast vs. mixed diet was lower than the between-infant variation. Independent of food status, some infants were concurrently exposed to almost all the measured phthalates and substitutes in higher amounts than others. CONCLUSION Surprisingly, irrespective of diet status infants were exposed to several phthalates and substitutes some of which have been regulated for years. Exposure patterns and levels were similar in infants and their parents. Importantly, risk assessment based on new refined reference doses (RfD-AA) exceeded the safety level for anti-androgenic effects in a number of infants and parents, which is of concern.
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Affiliation(s)
- Hanne Frederiksen
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark.
| | - Emmie N Upners
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
| | - Marie Lindhardt Ljubicic
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
| | - Margit Bistrup Fischer
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
| | - Alexander Siegfried Busch
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
| | - Casper P Hagen
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
| | - Anders Juul
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark; University of Copenhagen, Department of Clinical Medicine, Denmark
| | - Anna-Maria Andersson
- Copenhagen University Hospital-Rigshospitalet, Department of Growth and Reproduction, Denmark; Copenhagen University Hospital-Rigshospitalet, International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Denmark
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18
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Stajnko A, Runkel AA, Kosjek T, Snoj Tratnik J, Mazej D, Falnoga I, Horvat M. Assessment of susceptibility to phthalate and DINCH exposure through CYP and UGT single nucleotide polymorphisms. Environ Int 2022; 159:107046. [PMID: 34920277 DOI: 10.1016/j.envint.2021.107046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
Single nucleotide polymorphisms (SNPs) of cytochrome P450 (CYPs) and UDP-glucuronosyltransferase (UGTs) genes have been proposed to influence phthalates and 1,2-cyclo-hexanedicarboxylic acid diisononyl ester (DINCH) biotransformation but have not been investigated on a populational level. We investigated the role of SNPs in CYP2C9, CYP2C19, CYP2D6, UGT2B15, and UGT1A7 genes in the biotransformation of phthalates (DEHP, DEP, DiBP, DnBP, BBzP, DiNP, DidP) and DINCH by determining their urine metabolites. From the Slovenian study population of 274 men and 289 lactating primiparous women we obtained data on phthalate and DINCH urine metabolite levels (MEHP, 5OH-MEHP, 5oxo-MEHP, 5cx-MEPP, MEP, MiBP, MnBP, MBzP, cx-MINP, OH-MiDP, MCHP, MnPeP, MnOP, 5OH-MINCH, 5oxo-MINCH), SNP genotypes (rs1057910 = CYP2C9*3, rs1799853 = CYP2C9*2, rs4244285 = CYP2C19*2, rs12248560 = CYP2C19*17, rs3892097 = CYP2D6*4, rs1902023 = UGT2B15*2, and rs11692021 = UGT1A7*3) and questionnaires. Associations of SNPs with levels of metabolites and their ratios were assessed by multiple linear regression and ordinary logistic regression analyses. Significant associations were observed for CYP2C9*2, CYP2C9*3, CYP2C19*17, and UGT1A7*3 SNPs. The most pronounced was the influence of CYP2C9*2 and *3 on the reduced DEHP biotransformation, with lower levels of metabolites and their ratios in men and women. In contrast, carriers of CYP2C19*17 showed higher urine levels of DEHP metabolites in both genders, and in women also in higher DiNP, DiDP, and DINCH metabolite levels. The presence of UGT1A7*3 was associated with increased metabolite levels of DINCH in men and of DiBP and DBzP in women. Statistical models explained up to 27% of variability in metabolite levels or their ratios. Our observations confirm the effect of CYP2C9*2 and *3 SNPs towards reduced DEHP biotransformation. We show that CYP2C9*2, CYP2C9*3, CYP2C19*17, and UGT1A7*3 SNPs might represent biomarkers of susceptibility or resilience in phthalates and DINCH exposure that have been so far unrecognised.
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Affiliation(s)
- Anja Stajnko
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia.
| | - Agneta Annika Runkel
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Tina Kosjek
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Janja Snoj Tratnik
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Darja Mazej
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Ingrid Falnoga
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia
| | - Milena Horvat
- Jožef Stefan Institute, Department of Environmental Sciences, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
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Runkel AA, Mazej D, Snoj Tratnik J, Tkalec Ž, Kosjek T, Horvat M. Exposure of men and lactating women to environmental phenols, phthalates, and DINCH. Chemosphere 2022; 286:131858. [PMID: 34399256 DOI: 10.1016/j.chemosphere.2021.131858] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/02/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Phthalates and 1,2-Cyclohexane dicarboxylic acid diisononyl ester (DINCH), bisphenols (BPs), parabens (PBs), and triclosan (TCS) are high-production-volume chemicals of pseudo-persistence that are concerning for the environment and human health. This study aims to assess the exposure to 10 phthalates, DINCH, and environmental phenols (3 BPs, 7 PBs, and TCS) of Slovenian men (n = 548) and lactating primiparous women (n = 536). We observed urinary concentrations comparable to studies from other countries and significant differences among the sub-populations. In our study, men had significantly higher levels of phthalates, DINCH, and BPs, whereas the concentrations of PBs in urine were significantly higher in women. The most significant determinant of exposure was the area of residence and the year of sampling (2008-2014) that mirrors trends in the market. Participants from urban or industrialized sampling locations had higher levels of almost all monitored analytes compared to rural locations. In an attempt to assess the risk of the population, hazard quotient (HQ) values were calculated for individual compounds and the chemical mixture. Individual analytes do not seem to pose a risk to the studied population at current exposure levels, whereas the HQ value of the chemical mixture is near the threshold of 1 which would indicate a higher risk. We conclude that greater emphasis on the risk resulting from cumulative exposure to chemical mixtures and additional studies are needed to estimate the exposure of susceptible populations, such as children.
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Affiliation(s)
- Agneta A Runkel
- Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Darja Mazej
- Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | | | - Žiga Tkalec
- Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Tina Kosjek
- Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia
| | - Milena Horvat
- Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000, Ljubljana, Slovenia.
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20
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Yland JJ, Zhang Y, Williams PL, Mustieles V, Vagios S, Souter I, Calafat AM, Hauser R, Messerlian C. Phthalate and DINCH urinary concentrations across pregnancy and risk of preterm birth. Environ Pollut 2022; 292:118476. [PMID: 34763012 DOI: 10.1016/j.envpol.2021.118476] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 05/21/2023]
Abstract
Preconception and prenatal exposure to phthalates has been associated with an increased risk of preterm birth. However, it is unclear whether there are periods of heightened susceptibility during pregnancy. This prospective cohort study included 386 women undergoing fertility treatment who gave birth to a singleton infant during 2005 through 2018. Eleven phthalate metabolites were measured in spot urine samples collected at each trimester. In approximately 50% of participants, two metabolites of 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH), a phthalate substitute, were also measured. The molar sum of four di(2-ethylhexyl) phthalate metabolites (∑DEHP) was calculated. We evaluated the associations of mean maternal biomarker concentrations with risk of preterm birth using modified log-binomial models and utilized multiple informant models to compare trimester-specific associations. We examined the relative biomarker concentration across gestation comparing women with preterm birth to women with term delivery using quadratic mixed model. The risk ratio for preterm birth associated with a one-unit increase in the natural log-transformed urinary concentrations of ∑DEHP (mean during pregnancy) was 1.21 (95% confidence interval (CI): 0.84, 1.72). In multiple informant models, these associations were strongest in the third trimester (RR = 1.51; 95% CI: 1.17, 1.95). Estimated mean ∑DEHP concentrations were higher among women with preterm than term delivery, especially late in gestation. Associations with preterm birth were also observed for each of the four individual DEHP metabolites. Detection of cyclohexane-1,2-dicarboxylic acid monocarboxyisooctyl ester (MCOCH), a metabolite of DINCH, appeared to be positively related to preterm birth. In this prospective cohort of subfertile couples, maternal ∑DEHP metabolite concentrations during pregnancy were associated with an increased risk of preterm birth, particularly during late gestation.
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Affiliation(s)
- Jennifer J Yland
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Yu Zhang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Paige L Williams
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Vicente Mustieles
- University of Granada, Center for Biomedical Research (CIBM), Spain. Instituto de Investigación Biosanitaria Ibs GRANADA, Spain; Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 18100, Spain
| | - Stylianos Vagios
- Massachusetts General Hospital Fertility Center, Department of Obstetrics and Gynecology, Boston, MA, USA
| | - Irene Souter
- Massachusetts General Hospital Fertility Center, Department of Obstetrics and Gynecology, Boston, MA, USA
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Russ Hauser
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Carmen Messerlian
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Massachusetts General Hospital Fertility Center, Department of Obstetrics and Gynecology, Boston, MA, USA.
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Philippat C, Rolland M, Lyon-Caen S, Pin I, Sakhi AK, Sabaredzovic A, Thomsen C, Slama R. Pre- and early post-natal exposure to phthalates and DINCH in a new type of mother-child cohort relying on within-subject pools of repeated urine samples. Environ Pollut 2021; 287:117650. [PMID: 34435564 PMCID: PMC8444084 DOI: 10.1016/j.envpol.2021.117650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 05/08/2023]
Abstract
For non-persistent chemicals such as phthalates, a single spot urine sample only reflects exposure in the past few hours. Collecting repeated urine samples for each participant over windows of sensitivity is expected to improve exposure characterization but has rarely been done. We aimed to rely on within-subject pools of repeated urine samples to assess phthalate exposure during pregnancy and infancy. Women of the French SEPAGES mother-child cohort were asked to collect three urine samples per day over seven consecutive days, twice during their pregnancy (approximatively second (T2) and third (T3) trimesters). For their infants they also collected one sample per day during a week at two (M2) and twelve months (M12). Samples were pooled (within-subject, within-period) prior to phthalate and DINCH metabolite concentrations assessment. Number of pooled samples assayed was 477, 456, 152 and 100 for T2, T3, M2 and M12, respectively. All metabolites were detected in more than 95% of the pooled samples except for the two DINCH metabolites (oh- and oxo-MINCH), MMCHP and oh-MPHP at M2 for which detection frequencies ranged between 64% and 88%. Maternal concentrations of MiBP, MBzP, DEHP metabolites and oxo-MiNP decreased between 2014 and 2017, whereas concentrations of oh-MiNP and the two DINCH metabolites increased (Mann-Kendall p-values < 0.05). While improved compared to studies that relied on spot samples, Intraclass Correlation Coefficients for the pregnancy were below 0.40 for most metabolites. Spearman correlation coefficients between pooled samples collected in infancy were lower than those observed during pregnancy, and were all below 0.30. Exposure to emerging phthalate substitutes such as DINCH and DPHP seems widespread among pregnant women and infants. Collecting repeated urine samples in pregnant women and infants is feasible. The relatively low correlation across trimesters and between maternal and infant samples highlights the need to collect biospecimens in the assumed sensitive time window.
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Affiliation(s)
- Claire Philippat
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences (IAB), Grenoble, France.
| | - Matthieu Rolland
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences (IAB), Grenoble, France.
| | - Sarah Lyon-Caen
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences (IAB), Grenoble, France.
| | - Isabelle Pin
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences (IAB), Grenoble, France; Pediatric Department, Grenoble University Hospital, 38700, La Tronche, France.
| | | | | | | | - Rémy Slama
- University Grenoble Alpes, Inserm, CNRS, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Institute for Advanced Biosciences (IAB), Grenoble, France.
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Gkrillas A, Dirven H, Papadopoulou E, Andreassen M, Hjertholm H, Husøy T. Exposure estimates of phthalates and DINCH from foods and personal care products in comparison with biomonitoring data in 24-hour urine from the Norwegian EuroMix biomonitoring study. Environ Int 2021; 155:106598. [PMID: 33957536 DOI: 10.1016/j.envint.2021.106598] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Phthalates are diesters of phthalic acid and have been widely used as plasticizers in polyvinyl chloride (PVC) plastics. Phthalates are also used as excipients in pharmaceuticals and personal care products (PCPs). Phthalates can migrate from the plastic into the air, water and food, and humans can be exposed via multiple pathways such as dermal, oral and inhalation. There is evidence that phthalates can induce reproductive and developmental toxicity not only in experimental animals but also in humans through disruption of estrogenic activity. The aim of this study was to collect concentration data on five phthalates in foods and PCPs from the scientific literature and combine these with food consumption data and PCP use frequency data from the EuroMix biomonitoring (BM) study in order to assess exposure. Probabilistic exposure assessments of phthalates were performed from foods and PCPs. Due to the very limited data available in the literature for DINCH, an exposure assessment was not carried out for this compound. The food groups with the highest contribution to phthalates exposure were: beverages, dairy, bread and meat products. The exposure estimates were compared with the measured phthalate metabolite levels from 24-hour urine samples. Regarding the oral route, measured phthalate exposure was between the lower bound (LB) and medium bound (MB) estimated exposure for all phthalates, except for DEP. The measured exposure from urine correlated with the estimated exposure from food for DEHP and DBP, while for BBP and DEP it correlated with the exposure estimates from PCPs. There were no significant differences between the BM data and the estimated exposure, except for DINP for males (p = 0.01). The LB and MB phthalate exposures estimated from foods and PCPs and the measured exposure from the urine were considerably lower than their respective tolerable daily intake (TDI) values established by the European Food Safety Authority (EFSA) and the World Health Organization (WHO). For the upper bound (UB), the exposure estimates are approximately double the TDI; however, this is regarded as a worst-case estimate and has low correlation with the measured exposure.
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Affiliation(s)
- A Gkrillas
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - H Dirven
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - E Papadopoulou
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - M Andreassen
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - H Hjertholm
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - T Husøy
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway.
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Schaffert A, Arnold J, Karkossa I, Blüher M, von Bergen M, Schubert K. The Emerging Plasticizer Alternative DINCH and Its Metabolite MINCH Induce Oxidative Stress and Enhance Inflammatory Responses in Human THP-1 Macrophages. Cells 2021; 10:cells10092367. [PMID: 34572016 PMCID: PMC8466537 DOI: 10.3390/cells10092367] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/03/2021] [Accepted: 09/04/2021] [Indexed: 02/06/2023] Open
Abstract
The use of the plasticizer bis(2-ethylhexyl)phthalate (DEHP) and other plasticizers in the manufacture of plastic products has been restricted due to adverse health outcomes such as obesity, metabolic syndrome, and asthma, for which inflammation has been described to be a driving factor. The emerging alternative plasticizer 1,2-cyclohexanedioic acid diisononyl ester (DINCH) still lacks information regarding its potential effects on the immune system. Here, we investigated the effects of DINCH and its naturally occurring metabolite monoisononylcyclohexane-1,2-dicarboxylic acid ester (MINCH) on the innate immune response. Human THP-1 macrophages were exposed to 10 nM–10 μM DINCH or MINCH for 4 h, 16 h, and 24 h. To decipher the underlying mechanism of action, we applied an untargeted proteomic approach that revealed xenobiotic-induced activation of immune-related pathways such as the nuclear factor κB (NF-κB) signaling pathway. Key drivers were associated with oxidative stress, mitochondrial dysfunction, DNA damage repair, apoptosis, and autophagy. We verified increased reactive oxygen species (ROS) leading to cellular damage, NF-κB activation, and subsequent TNF and IL-1β release, even at low nM concentrations. Taken together, DINCH and MINCH induced cellular stress and pro-inflammatory effects in macrophages, which may lead to adverse health effects.
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Affiliation(s)
- Alexandra Schaffert
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research (UFZ), 04318 Leipzig, Germany; (A.S.); (J.A.); (I.K.); (M.v.B.)
| | - Josi Arnold
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research (UFZ), 04318 Leipzig, Germany; (A.S.); (J.A.); (I.K.); (M.v.B.)
| | - Isabel Karkossa
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research (UFZ), 04318 Leipzig, Germany; (A.S.); (J.A.); (I.K.); (M.v.B.)
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG), 04318 Leipzig, Germany;
- Department of Endocrinology, Nephrology Rheumatology, University Hospital Leipzig Medical Research Center, 04318 Leipzig, Germany
| | - Martin von Bergen
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research (UFZ), 04318 Leipzig, Germany; (A.S.); (J.A.); (I.K.); (M.v.B.)
- Institute of Biochemistry, Leipzig University, 04103 Leipzig, Germany
| | - Kristin Schubert
- Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research (UFZ), 04318 Leipzig, Germany; (A.S.); (J.A.); (I.K.); (M.v.B.)
- Correspondence: ; Tel.: +49-341-235-1819
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Wesselink AK, Fruh V, Hauser R, Weuve J, Taylor KW, Orta OR, Claus Henn B, Bethea TN, McClean MD, Williams PL, Calafat AM, Baird DD, Wise LA. Correlates of urinary concentrations of phthalate and phthalate alternative metabolites among reproductive-aged Black women from Detroit, Michigan. J Expo Sci Environ Epidemiol 2021; 31:461-475. [PMID: 32980856 PMCID: PMC7994206 DOI: 10.1038/s41370-020-00270-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/11/2020] [Accepted: 09/16/2020] [Indexed: 05/15/2023]
Abstract
BACKGROUND Phthalates are endocrine-disrupting chemicals that are widely present in consumer products. In the United States, Black women are more highly exposed to phthalates than other racial/ethnic groups, yet information on predictors of phthalate exposure among Black women is limited. OBJECTIVE We evaluated the association of demographics, lifestyle, reproductive history, and personal care product use with urinary concentrations of phthalate and phthalate alternative metabolites, using cross-sectional data from a study of 754 Black women from Detroit, Michigan (2010-2012). METHODS Women completed questionnaires and provided urine specimens which were analyzed for 16 phthalate and phthalate alternative metabolites. We used linear regression models to estimate mean percentage differences and 95% confidence intervals (CIs) in concentrations across levels of correlates. RESULTS Monoethyl phthalate (MEP) and MBP concentrations were positively associated with personal care product use, particularly nail products. Educational attainment was positively associated with high molecular weight phthalate concentrations but inversely associated with monobenzyl phthalate (MBzP) concentrations. Parity was positively associated with MBzP concentrations and inversely associated with concentrations of MEP and high molecular weight phthalates. SIGNIFICANCE We found that sociodemographics, reproductive characteristics, and use of certain personal care products were associated with urinary phthalate concentrations among Black women. Our results emphasize the importance of examining exposure determinants among multiply marginalized populations.
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Affiliation(s)
- Amelia K Wesselink
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
| | - Victoria Fruh
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Russ Hauser
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Jennifer Weuve
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Kyla W Taylor
- Office of Health Assessment and Translation, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle, NC, USA
| | - Olivia R Orta
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Traci N Bethea
- Office of Minority Health & Health Disparities Research, Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, USA
| | - Michael D McClean
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Paige L Williams
- Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Antonia M Calafat
- National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Donna D Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle, NC, USA
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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25
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Wenzel AG, Reiner JL, Kohno S, Wolf BJ, Brock JW, Cruze L, Newman RB, Kucklick JR. Biomonitoring of emerging DINCH metabolites in pregnant women in charleston, SC: 2011-2014. Chemosphere 2021; 262:128369. [PMID: 33182099 PMCID: PMC7670082 DOI: 10.1016/j.chemosphere.2020.128369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 05/14/2023]
Abstract
Due to the mounting evidence that phthalates, specifically di-2-ethylhexyl phthalate and dibutyl phthalate, produce adverse endocrine effects in humans and wildlife, the use of other chemicals as replacements has increased. One of the most commonly encountered phthalate replacements is di(isononyl)cyclohexane-1,2-dicarboxylate (DINCH). Currently, little is known about the prevalence of human exposure, bioactivity, and endocrine disrupting potential of DINCH. We sampled urine from 100 pregnant women during the second trimester of pregnancy living in Charleston, SC between 2011 and 2014 and measured the following DINCH metabolites by LC-MS/MS: cyclohexane-1,2-dicarboxylic acid-mono(hydroxy-isononyl) ester (OH-MINCH), cyclohexane-1,2-dicarboxylic acid-mono(oxo-isononyl) ester (oxo-MINCH), and cyclohexane-1,2-dicarboxylic acid-monocarboxy isooctyl ester (cx-MINCH). These metabolites were also tested on human estrogen receptor alpha and progesterone receptor beta transactivation assays in vitro. OH-MINCH was detected in 98% of urine samples. The specific gravity-adjusted median (interquartile range) OH-MINCH concentration was 0.20 (0.25) ng/mL, and concentrations were significantly higher in African American women compared to Caucasian women (p = 0.01). DINCH metabolite concentrations were consistent between years, and they did not exhibit estrogenic or progestogenic activity in vitro. Human exposure to these emerging compounds should continue to be monitored, especially in vulnerable populations, to ensure the replacement of phthalates by DINCH is not a case of regrettable substitution.
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Affiliation(s)
- Abby G Wenzel
- Department of Obstetrics and Gynecology, Medical University of South Carolina, 171 Ashley Avenue, Charleston, SC, 29425, USA; National Institute of Standards and Technology, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, USA
| | - Jessica L Reiner
- National Institute of Standards and Technology, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, USA.
| | - Satomi Kohno
- Department of Biology, St. Cloud State University, 720 4thAvenue South, St. Cloud, MN, 56301, USA
| | - Bethany J Wolf
- Department of Public Health Sciences, Medical University of South Carolina, 135 Cannon Street, Suite 303, MSC 835, Charleston, SC, 29425, USA
| | - John W Brock
- Department of Chemistry, University of North Carolina Asheville, CPO #2010, One University Heights, Asheville, NC, 28804, USA
| | - Lori Cruze
- Department of Biology, Wofford College, 429 North Church Street, Spartanburg, SC, 29303, USA
| | - Roger B Newman
- Department of Obstetrics and Gynecology, Medical University of South Carolina, 171 Ashley Avenue, Charleston, SC, 29425, USA
| | - John R Kucklick
- National Institute of Standards and Technology, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, USA
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26
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Martínez MA, Rovira J, Sharma RP, Schuhmacher M, Kumar V. Reconstruction of phthalate exposure and DINCH metabolites from biomonitoring data from the EXHES cohort of Tarragona, Spain: A case study on estimated vs reconstructed DEHP using the PBPK model. Environ Res 2020; 186:109534. [PMID: 32361526 DOI: 10.1016/j.envres.2020.109534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/12/2020] [Accepted: 04/12/2020] [Indexed: 06/11/2023]
Abstract
Phthalates are known endocrine disruptors (EDs) and are associated with potential diseases, such as obesity and diabetes. In 2002, the plasticizer 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) was introduced as an alternative to phthalates in the European market. The objective of this study was to evaluate the total exposure to phthalate and DINCH metabolites from EXHES Tarragona, Spain cohort of pregnant women. On the one hand, the analytical determination of phthalate and DINCH metabolites in urine was carried out. On the other hand, the reconstructed exposure was calculated for phthalates and DINCH using their metabolites concentration measured in the urine. Thirteen different phthalate metabolites and two metabolites of DINCH were measured and detected in almost all pregnant women's urine samples (n = 60). There were significant correlations between metabolites of the same parent compounds, and also between DEHP and MBzP metabolites, DiNP and BBZP metabolites, and DEHP and DiNP metabolites respectively. The exposure of pregnant women to phthalate and DINCH parent compounds were also back calculated using the levels of each metabolite found in pregnant women urine (reconstructed exposure). Besides, to demonstrate the utility of this approach, the physiologically based pharmacokinetic (PBPK) model was used to predict the cumulative amount of MEHP (a principal metabolite of DEHP in urine). To proceed with that, DEHP reconstructed exposure and estimated exposure from the same cohort (previously studied by the same authors) were simulated using the PBPK model. Results showed that the reconstructed-PBPK simulation was closer to the 24 h biomonitoring data than the estimated PBPK-simulation., This clearly shows that the combination of reconstructed exposure with the PBPK model is a good tool to predict chemicals exposure. However, some discrepancies between simulated and biomonitored values were found. This can be associated with other sources that contribute to the total exposure and emphasises the need to consider multi-routes exposure for the widely distributed chemicals like phthalates and DINCH.
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Affiliation(s)
- M A Martínez
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain.
| | - J Rovira
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain; Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain.
| | - R Prasad Sharma
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain
| | - M Schuhmacher
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain; Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain.
| | - V Kumar
- Environmental Engineering Laboratory, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain; IISPV, Hospital Universitari Sant Joan de Reus, Universitat Rovira I Virgili, Reus, Spain.
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27
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Rodríguez-Carmona Y, Ashrap P, Calafat AM, Ye X, Rosario Z, Bedrosian LD, Huerta-Montanez G, Vélez-Vega CM, Alshawabkeh A, Cordero JF, Meeker JD, Watkins D. Determinants and characterization of exposure to phthalates, DEHTP and DINCH among pregnant women in the PROTECT birth cohort in Puerto Rico. J Expo Sci Environ Epidemiol 2020; 30:56-69. [PMID: 31481681 PMCID: PMC6917904 DOI: 10.1038/s41370-019-0168-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 06/10/2019] [Accepted: 07/08/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND As a result of evidence suggesting phthalate toxicity, their use has decreased in recent years. However, new phthalates and non-phthalate replacements have emerged in their place, with unknown potential impacts on health. METHODS We measured 15 phthalate, two di(2-ethylhexyl)terephthalate (DEHTP), and two di(isononyl)cyclohexane-1,2-dicarboxylate (DINCH) urinary metabolites, collected up to three times during pregnancy from 994 women in Northern Puerto Rico (2011-2017). We used tests of linear trend to assess changes in concentrations over time and linear mixed models to identify predictors of exposure (sociodemographic characteristics, drinking water sources, diet, product use). RESULTS Several phthalate metabolites decreased over the study period indicating decreased exposure, while the geometric mean of DEHTP metabolites (molecular sum) increased threefold between 2014 and 2017. Intraclass correlations revealed low to moderate reproducibility of these biomarkers across pregnancy. Several metabolites were associated with maternal age, income, education, pre-pregnancy BMI, drinking public water, use of cleaning and personal care products, and ice cream consumption. DINCH metabolite concentrations remained low throughout the study period. CONCLUSION Although exposure to some phthalates may be decreasing, exposure to replacements, such as DEHTP, is increasing. Additional studies are needed to further characterize sources of phthalate replacement chemicals and potential exposure-related health effects among vulnerable populations.
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Affiliation(s)
- Yanelli Rodríguez-Carmona
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI, USA
| | - Pahriya Ashrap
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI, USA
| | | | - Xiaoyun Ye
- Centers for Disease and Control and Prevention, Atlanta, GA, USA
| | - Zaira Rosario
- Department of Epidemiology and Biostatistics, University of Georgia, Athens, GA, USA
| | - Leah D Bedrosian
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI, USA
| | | | - Carmen M Vélez-Vega
- University of Puerto Rico Graduate School of Public Health, UPR Medical Sciences Campus, San Juan, Puerto Rico
| | | | - José F Cordero
- Department of Epidemiology and Biostatistics, University of Georgia, Athens, GA, USA
| | - John D Meeker
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI, USA
| | - Deborah Watkins
- University of Michigan School of Public Health, Department of Environmental Health Sciences, Ann Arbor, MI, USA.
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28
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Campioli E, Lau M, Papadopoulos V. Effect of subacute and prenatal DINCH plasticizer exposure on rat dams and male offspring hepatic function: The role of PPAR-α. Environ Res 2019; 179:108773. [PMID: 31605871 DOI: 10.1016/j.envres.2019.108773] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Plasticizers are compounds added to plastics to modify their physical proprieties. The most well-known class of plasticizers, the phthalates, has been shown to possess antiandrogenic and tumor promoting activities. 1,2-Cyclohexane dicarboxylic acid diisononyl ester (DINCH) was approved for use in food contact containers in 2006 and has been used as a replacement for phthalates in toys and children products. However, we reported previously that the DINCH metabolite MINCH acts on primary rat adipocytes through the peroxisome proliferator activated receptor (PPAR)-α pathway in a manner similar to phthalates. Evidence from our studies, as well as from the current bibliography on DINCH, suggests that the liver might be one of its target organs. In the present study, we collected tissues from dams exposed subacutely and progeny at postnatal day (PND) 3 and 60 exposed in utero to DINCH (1, 10 and 100 mg/kg bw/day). Exposure to DINCH drastically affected liver gene expression in all 3 age groups tested and in particular at the dose of 1 mg/kg bw/day. The PPAR-α pathway along with other metabolic and DNA replication pathways were affected by DINCH. Modifications in PPAR-α and superoxide dismutase (SOD)-1 protein levels were observed in dams at PND21, as well as male progeny at PND3 and 60. No sign of fibrosis or direct liver toxicity was observed after 8 days of stimulus with low doses of DINCH. This study provides evidence that DINCH is not a biologically inert molecule in the rat, and in the liver its actions are mediated, at least in part, by PPAR-α.
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Affiliation(s)
- Enrico Campioli
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Matthew Lau
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; Department of Pharmacology & Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA
| | - Vassilios Papadopoulos
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada; Department of Pharmacology & Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, USA.
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29
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Lee YS, Lee S, Lim JE, Moon HB. Occurrence and emission of phthalates and non-phthalate plasticizers in sludge from wastewater treatment plants in Korea. Sci Total Environ 2019; 692:354-360. [PMID: 31351279 DOI: 10.1016/j.scitotenv.2019.07.301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 06/10/2023]
Abstract
Phthalates are endocrine-disrupting chemicals that cause adverse health effects in wildlife and humans. Due to domestic and global regulations of phthalates in commercial products, non-phthalate plasticizers (NPPs) have been introduced into industrial markets. Few studies have been conducted on the occurrence of phthalates and NPPs in sludge from wastewater treatment plants (WWTPs). In this study, sludge samples were collected from 40 WWTPs in Korea to investigate the occurrence, compositional profiles, and emission flux of phthalates and NPPs. Total concentrations of phthalates and NPPs in sludge ranged from 4.7 to 1400 (mean: 110) μg/g dry weight and from 0.17 to 780 (mean: 28.0) μg/g dry weight, respectively. Di(2-ethylhexyl)phthalate (DEHP) was a predominant compound, suggesting widespread consumption in Korea. Di(2-ethylhexyl)terephthalate (DEHT) was dominant in industrial sludge samples, whereas di-isononyl cyclohexane-1,2-dicarboxylate (DINCH) and trioctyl trimellitate (TOTM) were dominant in domestic sludge. This implies different consumption patterns of phthalate alternatives by industry and domestic activities. Concentrations of NPPs were significantly correlated with those of high-molecular-weight (HMW) phthalates, indicating that HMW phthalates were preferentially replaced by NPPs. The emission fluxes of phthalates via domestic WWTP activities were higher than those measured for industrial WWTPs, while the emission fluxes of NPPs via industrial WWTPs were higher than those found for domestic and industrial WWTPs. This indicates that phthalate emissions are associated with household activities, while NPP emissions are associated with industrial activities.
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Affiliation(s)
- Young-Sun Lee
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Sunggyu Lee
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae-Eun Lim
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea.
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30
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Kasper-Sonnenberg M, Koch HM, Apel P, Rüther M, Pälmke C, Brüning T, Kolossa-Gehring M. Time trend of exposure to the phthalate plasticizer substitute DINCH in Germany from 1999 to 2017: Biomonitoring data on young adults from the Environmental Specimen Bank (ESB). Int J Hyg Environ Health 2019; 222:1084-1092. [PMID: 31378638 DOI: 10.1016/j.ijheh.2019.07.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/11/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
Abstract
DINCH (cyclohexane-1,2-dicarboxylic acid-diisononyl ester) is a phthalate plasticizer substitute introduced into the market in 2002. It is increasingly used especially in the production of toys, food contact materials and medical devices. In this measurement campaign on 24-h urine samples of young adults (20-29 years) from the German Environmental Specimen Bank (ESB) collected in 2010, 2011, 2013, 2015 and 2017 (in total 300 samples, 60 samples/year) we analyzed three specific, oxidized DINCH metabolites (OH-MINCH: cyclohexane-1,2-dicarboxylic acid-mono(hydroxy-isononyl) ester; cx-MINCH: cyclohexane-1,2-dicarboxylic acid-mono(carboxy-isooctyl) ester, oxo-MINCH: cyclohexane-1,2-dicarboxylic acid-mono(oxo-isononyl) ester). We merged these data with earlier data of the ESB from the years 1999-2012 and are now able to report levels and time trends of internal DINCH exposure from 1999 to 2017. After first detections of the major oxidized DINCH metabolite OH-MINCH in 2006 (6.7%) detection rates rapidly increased to 43.3% in 2009, 80% in 2010 and 98.3% in 2011 and 2012. From the year 2013 on we could detect OH-MINCH in every urine sample analyzed. The median concentrations of OH-MINCH rapidly increased from 0.15 μg/L in 2010 to twice the concentration in 2011 (0.31 μg/L) with further increases in 2013 (0.37 μg/L), 2015 (0.59 μg/L) and 2017 (0.70 μg/L). Similar increases, albeit at lower detection rates and concentration levels, could be observed for cx-MINCH and oxo-MINCH. All metabolites strongly correlate with each other. For the ESB study population, DINCH exposures are still far below health based guidance values such as the German Human Biomonitoring Value (HBM-I; 4,500 μg/L for the sum of OH-MINCH and cx-MINCH) or the tolerable daily intake (TDI) of EFSA (1 mg/kg bw/d). The median daily DINCH intake (DI) calculated for 2017 was 0.23 μg/kg bw/d, thus 4,310-times lower than the TDI. The maximum DI calculated for one individual in 2012 (42.60 μg/kg bw/d) was a factor of more than 20 below the TDI. The ongoing increase in DINCH exposure needs to be closely monitored in the future, including populations with potentially higher exposures such as children. This close monitoring will enable timely exposure and risk reduction measures if exposures reached critical levels, or if new toxicological data lead to lower health based guidance values. DINCH belongs to the European Human Biomonitoring Initiative (HBM4EU) priority substances for which policy relevant questions still have to be answered.
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Affiliation(s)
- Monika Kasper-Sonnenberg
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, D-44789, Bochum, Germany
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, D-44789, Bochum, Germany.
| | - Petra Apel
- German Environment Agency (UBA), Corrensplatz 1, D-14195, Berlin, Germany
| | - Maria Rüther
- German Environment Agency (UBA), Corrensplatz 1, D-14195, Berlin, Germany
| | - Claudia Pälmke
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, D-44789, Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, D-44789, Bochum, Germany
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31
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Urbancova K, Lankova D, Sram RJ, Hajslova J, Pulkrabova J. Urinary metabolites of phthalates and di-iso-nonyl cyclohexane-1,2-dicarboxylate ( DINCH)-Czech mothers' and newborns' exposure biomarkers. Environ Res 2019; 173:342-348. [PMID: 30953948 DOI: 10.1016/j.envres.2019.03.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 05/06/2023]
Abstract
To assess human exposure to hazardous diesters of phthalic acid and their substitute di-iso-nonyl cyclohexane-1,2-dicarboxylate (DINCH), concentrations of their metabolites in urine should be determined. For the purpose of this biomonitoring study, a quick and easy sample preparation procedure for the simultaneous determination of eight phthalate and four DINCH metabolites in urine has been implemented and validated. Following the enzymatic hydrolysis and dilution with methanol, the sample is ready for the analysis by ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS). The limits of quantification of this method ranged from 0.15 to 0.4 ng/mL urine with recoveries of 60-126% and repeatability in the range of 1-11%. The validated method was subsequently used for the analysis of urine samples collected from mothers and their newborn children living in two localities of the Czech Republic (Karvina and Ceske Budejovice, 2013-2014). Median concentrations of all measured metabolites (∑metabolites) were slightly lower in the urine samples collected from children (77.7 ng/mL urine) compared to their mothers (115.3 ng/mL urine), but no correlation was found between the concentrations of target compounds in children's and mothers' urine samples. The analyte with the highest concentration was monobutyl phthalate (MBP), with the median concentration of 32.1 ng/mL urine in the urine samples collected from mothers and 17.2 ng/mL urine in the samples collected from their children. This compound was also found in almost all of the measured samples. On the other hand, mono-isononyl-cyclohexane-1,2-dicarboxylate (MINCH) was not found in any urine sample. The most contaminated samples were collected from children living in the Karvina locality (median ∑metabolites 103.2 ng/mL urine), where the mono (2-ethyl-5-carboxypentyl) phthalate (cx-MEHP) compound contributed 43% to the total content of phthalate metabolites in newborns' urine. The results from our study are comparable with concentrations of the target compounds from Norway and Germany and lower compared to the results concluded in Sweden.
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Affiliation(s)
- Katerina Urbancova
- University of Chemistry and Technology, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, Prague 6, 16628, Czech Republic
| | - Darina Lankova
- University of Chemistry and Technology, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, Prague 6, 16628, Czech Republic
| | - Radim J Sram
- University of Chemistry and Technology, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, Prague 6, 16628, Czech Republic; Institute of Experimental Medicine CAS, Videnska 1083, Prague 4, 14220, Czech Republic
| | - Jana Hajslova
- University of Chemistry and Technology, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, Prague 6, 16628, Czech Republic
| | - Jana Pulkrabova
- University of Chemistry and Technology, Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Technicka 3, Prague 6, 16628, Czech Republic.
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Shu H, Jönsson BAG, Gennings C, Lindh CH, Nånberg E, Bornehag CG. PVC flooring at home and uptake of phthalates in pregnant women. Indoor Air 2019; 29:43-54. [PMID: 30240038 DOI: 10.1111/ina.12508] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 08/31/2018] [Accepted: 09/12/2018] [Indexed: 05/18/2023]
Abstract
Phthalates are used as plasticizers in polyvinyl chloride (PVC) materials and it is known that phthalates may migrate into the surrounding environment and then become a source for human uptake. The aim of the study was to investigate whether residential PVC flooring was related to the urinary levels of phthalate metabolites determined in pregnant women. The data were from the Swedish SELMA study where sampling was conducted during the time period 2007-2010. Spot urine samples from 1674 women at the end of the first trimester were analyzed for 14 metabolites from seven phthalates and one phthalate alternative. Data on flooring material in the kitchen and the parents' bedrooms as well as potential confounders were collected by postal questionnaires at the same time as the urine samples were taken. Multiple regression modeling by least square geometric mean and weighted quantile sum regression was applied to log-transformed and creatinine-adjusted phthalate metabolite concentrations adjusted for potential confounders from questionnaire data. This study has found significantly higher urinary levels of the BBzP metabolite (MBzP) in pregnant women living in homes with PVC flooring as compared to homes with other flooring materials.
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Affiliation(s)
- Huan Shu
- Department of Environmental Science and Analytical Chemistry, Stockholm University, Stockholm, Sweden
| | - Bo A G Jönsson
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Chris Gennings
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Christian H Lindh
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Eewa Nånberg
- Department of Health Sciences, Örebro University, Örebro, Sweden
| | - Carl-Gustaf Bornehag
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York City, New York
- Department of Health Sciences, Karlstad University, Karlstad, Sweden
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Sackmann K, Reemtsma T, Rahmberg M, Bunke D. Impact of European chemicals regulation on the industrial use of plasticizers and patterns of substitution in Scandinavia. Environ Int 2018; 119:346-352. [PMID: 29990955 DOI: 10.1016/j.envint.2018.06.037] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/26/2018] [Accepted: 06/26/2018] [Indexed: 05/07/2023]
Abstract
REACH aims at promoting the safe use of chemicals in Europe, inter alia by identification and regulation of substances of very high concern (SVHCs). Once identified, SVHCs need to be substituted by safer alternatives. However, substitutes are frequently not safer than the substances that they replace but rather show similar hazard profiles, resulting in regrettable substitution. This paper investigates the impact of chemicals regulation on substitution of chemicals by analyzing time trends in the industrial use of chemicals from 2000 to 2014 in Scandinavia. It is shown that the use of ten water-relevant SVHCs decreased by about 90% in the considered period in Sweden as compared to a control group of unregulated substances which decreased by only 20%. A closer inspection of the use of 23 highly used plasticizers revealed that the use of regulated phthalate plasticizers decreased while the use of non-phthalate plasticizers increased. A first comparison of hazardous properties showed that during the 15-years period chemical substitution drastically reduced the chemical hazard burden of plasticizers in Scandinavia for both, the environment and human health. This study shows that regulation and the related discussion on chemicals safety have significantly reduced the chemical hazard burden from plasticizers in Scandinavia since the year 2000. It is assumed that similar trends can be found for the whole European Union. To combat regrettable substitution, mitigation options are suggested, including information-based tools for the identification of safer alternatives and an improved accessibility of information on production volumes and uses of chemicals to allow for an improved assessment of chemical's risk.
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Affiliation(s)
- Kathrin Sackmann
- Öko-Institut e.V., Merzhauser Straße 173, 79100 Freiburg, Germany.
| | - Thorsten Reemtsma
- Helmholtz Centre for Environmental Research - UFZ, Department of Analytical Chemistry, Permoserstrasse 15, 04318 Leipzig, Germany.
| | - Magnus Rahmberg
- IVL Swedish Environmental Research Institute, Valhallavägen 81, 114 27 Stockholm, Sweden.
| | - Dirk Bunke
- Öko-Institut e.V., Merzhauser Straße 173, 79100 Freiburg, Germany.
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Giovanoulis G, Bui T, Xu F, Papadopoulou E, Padilla-Sanchez JA, Covaci A, Haug LS, Cousins AP, Magnér J, Cousins IT, de Wit CA. Multi-pathway human exposure assessment of phthalate esters and DINCH. Environ Int 2018; 112:115-126. [PMID: 29272775 DOI: 10.1016/j.envint.2017.12.016] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 12/07/2017] [Accepted: 12/11/2017] [Indexed: 06/07/2023]
Abstract
Phthalate esters are substances mainly used as plasticizers in various applications. Some have been restricted and phased out due to their adverse health effects and ubiquitous presence, leading to the introduction of alternative plasticizers, such as DINCH. Using a comprehensive dataset from a Norwegian study population, human exposure to DMP, DEP, DnBP, DiBP, BBzP, DEHP, DINP, DIDP, DPHP and DINCH was assessed by measuring their presence in external exposure media, allowing an estimation of the total intake, as well as the relative importance of different uptake pathways. Intake via different uptake routes, in particular inhalation, dermal absorption, and oral uptake was estimated and total intake based on all uptake pathways was compared to the calculated intake from biomonitoring data. Hand wipe results were used to determine dermal uptake and compared to other exposure sources such as air, dust and personal care products. Results showed that the calculated total intakes were similar, but slightly higher than those based on biomonitoring methods by 1.1 to 3 times (median), indicating a good understanding of important uptake pathways. The relative importance of different uptake pathways was comparable to other studies, where inhalation was important for lower molecular weight phthalates, and negligible for the higher molecular weight phthalates and DINCH. Dietary intake was the predominant exposure route for all analyzed substances. Dermal uptake based on hand wipes was much lower (median up to 2000 times) than the total dermal uptake via air, dust and personal care products. Still, dermal uptake is not a well-studied exposure pathway and several research gaps (e.g. absorption fractions) remain. Based on calculated intakes, the exposure for the Norwegian participants to the phthalates and DINCH was lower than health based limit values. Nevertheless, exposure to alternative plasticizers, such as DPHP and DINCH, is expected to increase in the future and continuous monitoring is required.
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Affiliation(s)
- Georgios Giovanoulis
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden; IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden.
| | - Thuy Bui
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fuchao Xu
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitplein 1, B-2610, Wilrijk, Antwerpen, Belgium
| | - Eleni Papadopoulou
- Domain of Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggata 8, 0477 Oslo, Norway
| | - Juan A Padilla-Sanchez
- Domain of Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggata 8, 0477 Oslo, Norway
| | - Adrian Covaci
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitplein 1, B-2610, Wilrijk, Antwerpen, Belgium
| | - Line S Haug
- Domain of Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggata 8, 0477 Oslo, Norway
| | - Anna Palm Cousins
- IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden
| | - Jörgen Magnér
- IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden
| | - Ian T Cousins
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden
| | - Cynthia A de Wit
- Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden.
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Correia-Sá L, Schütze A, Norberto S, Calhau C, Domingues VF, Koch HM. Exposure of Portuguese children to the novel non-phthalate plasticizer di-(iso-nonyl)-cyclohexane-1,2-dicarboxylate ( DINCH). Environ Int 2017; 102:79-86. [PMID: 28188053 DOI: 10.1016/j.envint.2017.02.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/19/2017] [Accepted: 02/02/2017] [Indexed: 06/06/2023]
Abstract
Di-(iso-nonyl)-cyclohexane-1,2-dicarboxylate (DINCH) is used as substitute for high molecular weight phthalate plasticizers such as di-(2-ethylhexyl) phthalate (DEHP) and di-(iso-nonyl) phthalate (DINP). Due to a rapid substitution process we have to assume omnipresent and increasing DINCH exposures. The aim of this study was to evaluate DINCH exposure in 112 children (4-18years old) from Portugal, divided in two groups: 1) normal-/underweight following the usual diet; and 2) obese/overweight but under strict nutritional guidance. First morning urine samples were collected during the years 2014 and 2015. Oxidized DINCH metabolites (OH-MINCH, oxo-MINCH, cx-MINCH) were analyzed after enzymatic hydrolysis via on-line HPLC-MS/MS with isotope dilution quantification. We detected DINCH metabolites in all analyzed samples. Urinary median (95th percentile) concentrations were 2.14μg/L (15.91) for OH-MINCH, followed by 1.10μg/L (7.54) for oxo-MINCH and 1.08μg/L (7.33) for cx-MINCH. We observed no significant differences between the two child-groups; only after creatinine adjustment, we found higher metabolite concentrations in the younger compared to the older children. Median (95th percentile) daily DINCH intakes were in the range of 0.37 to 0.76 (2.52 to 5.61) μg/kg body weight/day depending on calculation model and subpopulation. Body weight related daily intakes were somewhat higher in Group 1 compared to Group 2, irrespective of the calculation model. However, in terms of absolute amounts (μg/day), DINCH intakes were higher in Group 2 compared to Group 1. In regard to age, we calculated higher intakes for the younger children compared to older children, but only with the creatinine-based model. This new data for southern European, Portuguese children adds information to the scarce knowledge on DINCH, confirming omnipresent exposure and suggesting higher exposures in children than adults. Significant sources and routes of exposure have yet to be unveiled. For now, all calculated daily intakes are far below established health benchmark levels (TDI, RfD). However, rapidly increasing exposures have to be expected over the next years.
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Affiliation(s)
- Luísa Correia-Sá
- REQUIMTE/LAQV - Instituto Superior de Engenharia do Porto do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal; CINTESIS - Centro de Investigação em Tecnologias e Sistemas de Informação em Saúde, Centro de Investigação Médica, 2° piso, edif. Nascente, Faculdade de Medicina da Universidade do Porto-Rua Dr. Plácido da Costa s/n, 4200-450 Porto, Portugal
| | - André Schütze
- IPA-Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum, Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Sónia Norberto
- CINTESIS - Centro de Investigação em Tecnologias e Sistemas de Informação em Saúde, Centro de Investigação Médica, 2° piso, edif. Nascente, Faculdade de Medicina da Universidade do Porto-Rua Dr. Plácido da Costa s/n, 4200-450 Porto, Portugal
| | - Conceição Calhau
- CINTESIS - Centro de Investigação em Tecnologias e Sistemas de Informação em Saúde, Centro de Investigação Médica, 2° piso, edif. Nascente, Faculdade de Medicina da Universidade do Porto-Rua Dr. Plácido da Costa s/n, 4200-450 Porto, Portugal
| | - Valentina F Domingues
- REQUIMTE/LAQV - Instituto Superior de Engenharia do Porto do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
| | - Holger M Koch
- IPA-Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum, Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
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van der Meer PF, Devine DV. Alternatives in blood operations when choosing non-DEHP bags. Vox Sang 2017; 112:183-184. [PMID: 28116749 DOI: 10.1111/vox.12479] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 11/23/2016] [Accepted: 11/23/2016] [Indexed: 11/29/2022]
Abstract
The use of di-ethylhexyl-phthalate (DEHP) in blood bags is under discussion due to toxicity concerns and possible restrictions. A questionnaire among 15 blood centres in nine countries showed that none so far have fully switched to non-DEHP blood bags. If centres had to change, sites with a 42-day outdate would choose for a shorter outdating period, while others would allow a higher haemolysis rate (but within current specifications). To improve red cell quality, about half of the centres are willing to move to an alternative red cell storage solution, while the other half would not change for various reasons.
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Affiliation(s)
- P F van der Meer
- Department of Product and Process Development, Sanquin Blood Bank, Amsterdam, The Netherlands
| | - D V Devine
- Canadian Blood Services, Vancouver, BC, Canada
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37
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Giovanoulis G, Alves A, Papadopoulou E, Cousins AP, Schütze A, Koch HM, Haug LS, Covaci A, Magnér J, Voorspoels S. Evaluation of exposure to phthalate esters and DINCH in urine and nails from a Norwegian study population. Environ Res 2016; 151:80-90. [PMID: 27466754 DOI: 10.1016/j.envres.2016.07.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 07/15/2016] [Accepted: 07/16/2016] [Indexed: 06/06/2023]
Abstract
Phthalate esters (PEs) and 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) used as additives in numerous consumer products are continuously released into the environment, leading to subsequent human exposure which might cause adverse health effects. The human biomonitoring approach allows the detection of PEs and DINCH in specific populations, by taking into account all possible routes of exposure (e.g. inhalation, transdermal and oral) and all relevant sources (e.g. air, dust, personal care products, diet). We have investigated the presence of nine PE and two DINCH metabolites and their exposure determinants in 61 adult residents of the Oslo area (Norway). Three urine spots and fingernails were collected from each participant according to established sampling protocols. Metabolite analysis was performed by LC-MS/MS. Metabolite levels in urine were used to back-calculate the total exposure to their corresponding parent compound. The primary monoesters, such as monomethyl phthalate (MMP, geometric mean 89.7ng/g), monoethyl phthalate (MEP, 104.8ng/g) and mono-n-butyl phthalate (MnBP, 89.3ng/g) were observed in higher levels in nails, whereas the secondary bis(2-ethylhexyl) phthalate (DEHP) and DINCH oxidative metabolites were more abundant in urine (detection frequency 84-100%). The estimated daily intakes of PEs and DINCH for this Norwegian population did not exceed the established tolerable daily intake and reference doses, and the cumulative risk assessment for combined exposure to plasticizers with similar toxic endpoints indicated no health concerns for the selected population. We found a moderate positive correlation between MEP levels in 3 urine spots and nails (range: 0.56-0.68). Higher frequency of personal care products use was associated with greater MEP concentrations in both urine and nail samples. Increased age, smoking, wearing plastic gloves during house cleaning, consuming food with plastic packaging and eating with hands were associated with higher levels in urine and nails for some of the metabolites. In contrast, frequent hair and hand washing was associated with lower urinary levels of monoisobutyl phthalate (MiBP) and mono(2-ethyl-5-hydroxyhexyl) phthalate (5-OH-MEHP), respectively.
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Affiliation(s)
- Georgios Giovanoulis
- IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden; Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, SE-106 91 Stockholm, Sweden.
| | - Andreia Alves
- VITO NV Flemish Institute for Technological Research, Boeretang 200, 2400 Mol, Belgium; Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitplein 1, B-2610 Wilrijk, Belgium
| | - Eleni Papadopoulou
- Domain of Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggata 8, 0477 Oslo, Norway
| | - Anna Palm Cousins
- IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden
| | - André Schütze
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bochum, Germany
| | - Line S Haug
- Domain of Infection Control and Environmental Health, Norwegian Institute of Public Health, Lovisenberggata 8, 0477 Oslo, Norway
| | - Adrian Covaci
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitplein 1, B-2610 Wilrijk, Belgium
| | - Jörgen Magnér
- IVL Swedish Environmental Research Institute, SE-100 31 Stockholm, Sweden.
| | - Stefan Voorspoels
- VITO NV Flemish Institute for Technological Research, Boeretang 200, 2400 Mol, Belgium
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Sheikh IA, Yasir M, Abu-Elmagd M, Dar TA, Abuzenadah AM, Damanhouri GA, Al-Qahtani M, Beg MA. Human sex hormone-binding globulin as a potential target of alternate plasticizers: an in silico study. BMC Struct Biol 2016; 16:15. [PMID: 27719672 PMCID: PMC5056528 DOI: 10.1186/s12900-016-0067-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Background Currently, alternate plasticizers are used to replace phthalate plasticizers in children’s toys, medical equipments and food packaging, due to the adverse effects of phthalate compounds on human health and laws prohibiting their use. Current information regarding the safety and potential adverse effects of alternate plasticizers is limited and recent studies have found alternate plasticizers to display similar characteristics to those observed in phthalate plasticizers. This study was undertaken to evaluate and predict the potential endocrine disrupting activity of the three most commonly used alternate plasticizers: di(2-ethylhexyl)terephthalate (DEHT), tris(2-ethylhexyl)trimellitate (TOTM), and diisononyl hexahydrophthalate (DINCH) against human sex hormone-binding globulin (SHBG) using in silico approaches. Materials and methods The crystal structure of human SHBG (Id: 1D2S) was retrieved from Protein Data Bank. PubChem database was searched for the structures of alternate plasticizers, DEHT, TOTM, and DINCH. Docking was performed using Glide (Schrodinger) Induced Fit Docking module. Results Induced Fit Docking of three alternate plasticizer compounds indicated that each of the three compounds fitted well into the steroid binding pocket of SHBG. Docking displays showed interactions of alternate plasticizers with 25–30 amino-acid residues of SHBG; 18–20 amino residues overlapped between the natural ligand, DHT, and the three compounds (commonality of 82–91 %). The hydrogen-bonding interaction of the amino-acid residue, Asn-82, of SHBG was also present in displays of DHT and all the three alternate phthalates. The binding affinity of all the three alternate phthalates was higher than DHT; maximum in DINCH followed by TOTM and DEHT. Conclusion Our results suggested that the three alternate plasticizers have potential to engage the important interacting residues of SHBG and thus interfere in its steroid homeostatic function.
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Affiliation(s)
- Ishfaq A Sheikh
- King Fahd Medical Research Center, King Abdulaziz University, PO Box 80216, 21589, Jeddah, Kingdom of Saudi Arabia.
| | - Muhammad Yasir
- King Fahd Medical Research Center, King Abdulaziz University, PO Box 80216, 21589, Jeddah, Kingdom of Saudi Arabia
| | - Muhammad Abu-Elmagd
- Centre of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Tanveer A Dar
- Department of Clinical Biochemistry, University of Kashmir, Srinagar, India
| | - Adel M Abuzenadah
- KACST Innovation Center in Personalized Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Ghazi A Damanhouri
- King Fahd Medical Research Center, King Abdulaziz University, PO Box 80216, 21589, Jeddah, Kingdom of Saudi Arabia
| | - Mohammed Al-Qahtani
- Centre of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Mohd A Beg
- King Fahd Medical Research Center, King Abdulaziz University, PO Box 80216, 21589, Jeddah, Kingdom of Saudi Arabia
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Abstract
Synthetic organic chemicals can be used in personal care and consumer products. Data on potential human health effects of these chemicals are limited-sometimes even contradictory-but because several of these chemicals are toxic in experimental animals, alternative compounds are entering consumer markets. Nevertheless, limited information exists on consequent exposure trends to both the original chemicals and their replacements. Biomonitoring (measuring concentrations of chemicals or their metabolites in people) provides invaluable information for exposure assessment. We use phthalates and bisphenol A-known industrial chemicals-and organophosphate insecticides as case studies to show exposure trends to these chemicals and their replacements (e.g., other phthalates, non-phthalate plasticizers, various bisphenols, pyrethroid insecticides) among the US general population. We compare US trends to national trends from Canada and Germany. Exposure to the original compounds is still prevalent among these general populations, but exposures to alternative chemicals may be increasing.
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40
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Gomez Ramos MJ, Heffernan AL, Toms LML, Calafat AM, Ye X, Hobson P, Broomhall S, Mueller JF. Concentrations of phthalates and DINCH metabolites in pooled urine from Queensland, Australia. Environ Int 2016; 88:179-186. [PMID: 26760715 PMCID: PMC7957829 DOI: 10.1016/j.envint.2015.12.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 05/18/2023]
Abstract
Dialkyl phthalate esters (phthalates) are ubiquitous chemicals used extensively as plasticizers, solvents and adhesives in a range of industrial and consumer products. 1,2-Cyclohexane dicarboxylic acid, diisononyl ester (DINCH) is a phthalate alternative introduced due to a more favourable toxicological profile, but exposure is largely uncharacterised. The aim of this study was to provide the first assessment of exposure to phthalates and DINCH in the general Australian population. De-identified urine specimens stratified by age and sex were obtained from a community-based pathology laboratory and pooled (n=24 pools of 100). Concentrations of free and total species were measured using online solid phase extraction isotope dilution high performance liquid chromatography tandem mass spectrometry. Concentrations ranged from 2.4 to 71.9ng/mL for metabolites of di(2-ethylhexyl)phthalate, and from <0.5 to 775ng/mL for all other metabolites. Our data suggest that phthalate metabolites concentrations in Australia were at least two times higher than in the United States and Germany; and may be related to legislative differences among countries. DINCH metabolite concentrations were comparatively low and consistent with the limited data available. Ongoing biomonitoring among the general Australian population may help assess temporal trends in exposure and assess the effectiveness of actions aimed at reducing exposures.
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Affiliation(s)
- M J Gomez Ramos
- National Research Centre for Environmental Toxicology, University of Queensland, Brisbane, QLD, Australia.
| | - A L Heffernan
- National Research Centre for Environmental Toxicology, University of Queensland, Brisbane, QLD, Australia.
| | - L M L Toms
- Queensland University of Technology, School of Public Health and Social Work, Brisbane, QLD, Australia; Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, QLD, Australia.
| | - A M Calafat
- Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - X Ye
- Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - P Hobson
- Sullivan Nicolaides Pathology, Taringa, QLD, Australia.
| | - S Broomhall
- Australian Government Department of the Environment, Canberra, ACT, Australia.
| | - J F Mueller
- National Research Centre for Environmental Toxicology, University of Queensland, Brisbane, QLD, Australia.
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Serrano K, Levin E, Chen D, Hansen A, Turner TR, Kurach J, Reidel A, Boecker WF, Acker JP, Devine DV. An investigation of red blood cell concentrate quality during storage in paediatric-sized polyvinylchloride bags plasticized with alternatives to di-2-ethylhexyl phthalate (DEHP). Vox Sang 2015; 110:227-35. [PMID: 26646434 DOI: 10.1111/vox.12355] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/25/2015] [Accepted: 09/16/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Di-2-ethylhexyl phthalate (DEHP) is a blood bag plasticizer. It is also a toxin, raising concerns for vulnerable populations, for example, neonates and infants. Here, the in vitro quality of red cell concentrates (RCC) stored in paediatric bags formulated with alternative plasticizers to DEHP was compared. MATERIALS AND METHODS RCC were pooled and split into polyvinylchloride (PVC)/DEHP, PVC/1,2-cyclohexanedicarboxylic acid diisononyl ester (DINCH) or PVC/butyryl trihexyl citrate (BTHC) bags. Quality was assessed on storage days 5, 21, 35 and 43. RESULTS Metabolism differed among the bags: pCO2 levels were lowest and pO2 were highest in BTHC bags. Glucose consumption and lactate production suggested higher metabolic rates in BTHC bags. ATP levels were best maintained in DINCH bags (day 43 mean level: 2·86 ± 0·29 μmol/g Hb). RCC in BTHC bags had the greatest potassium release (54·6 ± 3·0 mm on day 43). From day 21, haemolysis was higher in BTHC bags (P < 0·01) and by day 43 had exceeded 0·8% (0·85 ± 0·10%). RCC in BTHC bags showed more microparticle formation than RCC in DEHP or DINCH bags. CONCLUSION The results suggest that the BTHC formulation used was detrimental to RBC quality. DINCH bags could be a viable alternative to DEHP: they outperformed DEHP bags energetically, with better maintenance of ATP levels.
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Affiliation(s)
- K Serrano
- Canadian Blood Services' Centre for Innovation, The Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - E Levin
- Canadian Blood Services' Centre for Innovation, The Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - D Chen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - A Hansen
- Canadian Blood Services' Centre for Innovation, Edmonton, AB, Canada
| | - T R Turner
- Canadian Blood Services' Centre for Innovation, Edmonton, AB, Canada
| | - J Kurach
- Canadian Blood Services' Centre for Innovation, Edmonton, AB, Canada
| | - A Reidel
- Fresenius Kabi Deutschland GmbH, Bad Homburg, Germany
| | - W F Boecker
- Fresenius Kabi Deutschland GmbH, Bad Homburg, Germany
| | - J P Acker
- Canadian Blood Services' Centre for Innovation, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - D V Devine
- Canadian Blood Services' Centre for Innovation, The Centre for Blood Research, University of British Columbia, Vancouver, BC, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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42
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Bicalho B, Serrano K, Dos Santos Pereira A, Devine DV, Acker JP. Blood Bag Plasticizers Influence Red Blood Cell Vesiculation Rate without Altering the Lipid Composition of the Vesicles. Transfus Med Hemother 2015; 43:19-26. [PMID: 27022319 DOI: 10.1159/000441639] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/13/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Polyvinyl chloride (PVC) plasticized with di(2-ethylhexyl) phthalate (DEHP) is commonly used for blood collection and storage. DEHP has protective effects on RBC membranes, but is also a toxin. METHODS A paired study was conducted to investigate the influence of DEHP and two alternative plasticizers, 1,2-cyclohexane-dicarboxylic acid diisononyl ester (DINCH) and n-butyryl-tri-n-hexyl citrate (BTHC), on the preservation of RBCs stored for 42 days in PVC pediatric bags. The RBC membrane was evaluated for supernatant hemoglobin (Hb), release of extracellular microvesicles (EVs), osmotic fragility, deformability, and lipid composition. RESULTS In BTHC-plasticized bags, the supernatant Hb increase during storage was 2 times greater than in DINCH- and DEHP-plasticized bags. By day 21, EV concentrations had doubled from day-5 levels in DINCH- and DEHP-, and trebled in BTHC-plasticized bags. RBC mean cell volumes were greater in BTHC- than in DINCH- or DEHP-plasticized bags (p < 0.001). Osmotic fragility differed significantly among plasticizers (p < 0.01). After day 21, RBC deformability decreased in all, but to a greater extent in the bags with BTHC. Phospholipid composition of RBCs and EVs was not different among plasticizers. CONCLUSION Membrane stabilization capacity differed among the plasticizers. RBC in BTHC bags stored more poorly, while DEHP and DINCH bags offered better protection against vesiculation, osmotic stress, and Hb loss.
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Affiliation(s)
- Beatriz Bicalho
- Canadian Blood Services, Center for Innovation, Edmonton, AB, Canada
| | - Katherine Serrano
- Canadian Blood Services, Center for Innovation, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine at the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | | | - Dana V Devine
- Canadian Blood Services, Center for Innovation, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine at the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | - Jason P Acker
- Canadian Blood Services, Center for Innovation, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
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43
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Campioli E, Duong TB, Deschamps F, Papadopoulos V. Cyclohexane-1,2-dicarboxylic acid diisononyl ester and metabolite effects on rat epididymal stromal vascular fraction differentiation of adipose tissue. Environ Res 2015; 140:145-156. [PMID: 25863588 DOI: 10.1016/j.envres.2015.03.036] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 03/28/2015] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
Plastics are generally mixed with additives like plasticizers to enhance their flexibility, pliability, and elasticity proprieties. Plasticizers are easily released into the environment and are absorbed mainly through ingestion, dermal contact, and inhalation. One of the main classes of plasticizers, phthalates, has been associated with endocrine and reproductive diseases. In 2002, 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) was introduced in the market for use in plastic materials and articles intended to come into contact with food, and it received final approval from the European Food Safety Authority in 2006. At present, there is limited knowledge about the safety and potential metabolic and endocrine-disrupting properties of DINCH and its metabolites. The purpose of this study was to evaluate the biological effects of DINCH and its active metabolites, cyclohexane-1,2-dicarboxylic acid (CHDA) and cyclohexane-1,2-dicarboxylic acid mono isononyl ester (MINCH), on rat primary stromal vascular fraction (SVF) of adipose tissue. DINCH and its metabolite, CHDA, were not able to directly affect SVF differentiation. However, exposure of SVF to 50 μM and 100 μM concentrations of MINCH affected the expression of Cebpa and Fabp4, thus inducing SVF preadipocytes to accumulate lipids and fully differentiate into mature adipocytes. The effect of MINCH was blocked by the specific peroxisome proliferator-activated receptor (PPAR)-α antagonist, GW6471. Taken together, these results suggest that MINCH is a potent PPAR-α agonist and a metabolic disruptor, capable of inducing SVF preadipocyte differentiation, that may interfere with the endocrine system in mammals.
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Affiliation(s)
- Enrico Campioli
- Research Institute of the McGill University Health Centre, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Tam B Duong
- Research Institute of the McGill University Health Centre, Canada
| | | | - Vassilios Papadopoulos
- Research Institute of the McGill University Health Centre, Canada; Department of Medicine, McGill University, Montréal, Québec, Canada; Department of Biochemistry, McGill University, Montréal, Québec, Canada; Department of Pharmacology and Therapeutics, McGill University, Montréal, Québec, Canada.
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44
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Schütze A, Lorber M, Gawrych K, Kolossa-Gehring M, Apel P, Brüning T, Koch HM. Development of a multi-compartment pharmacokinetic model to characterize the exposure to Hexamoll® DINCH®. Chemosphere 2015; 128:216-224. [PMID: 25710321 DOI: 10.1016/j.chemosphere.2015.01.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 11/10/2014] [Accepted: 01/30/2015] [Indexed: 06/04/2023]
Abstract
We developed and calibrated a multi compartment pharmacokinetic (PK) model to predict urinary concentrations after oral exposure of four specific DINCH metabolites: MINCH, OH-MINCH, cx-MINCH, and oxo-MINCH. This descriptive model has 4 compartments: a "stomach" (SC) compartment, a "holding" (HC) compartment, a "blood" (BC) compartment and a "bladder" (BLC) compartment. DINCH is assumed to first deposit into the SC, with transfer split between the HC and the BC. Unmetabolized DINCH from the HC then transfers to the BC. The DINCH metabolism is assumed to occur in the BC before excretion via the BLC. At each urination event, all the metabolite mass in the BLC is excreted. The model was calibrated using published urine metabolite data from 3 different male volunteers, each orally dosed with 50mg DINCH. Full urine voids were taken for 48 h after dosage. The predicted values showed a good agreement with the observed urinary DINCH metabolite concentrations, with a Spearman correlation coefficient exceeding 0.7 for all oxidized metabolites. We showed the importance of a holding reservoir. Without it, a good agreement could not be found. We applied the model to a set of 24-h general population samples measured for DINCH metabolites. The model was unable to duplicate the ratio of metabolites seen in the 24-h samples. Two possibilities were offered to explain the difference: the exposure pattern in the general population did not match the oral exposure in the dosing experiments, or the long-term toxicokinetics of DINCH was not captured in the 48-h controlled dosing experiments.
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Affiliation(s)
- Andre Schütze
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Matthew Lorber
- Office of Research and Development, United States Environmental Protection Agency, 1200 Pennsylvania Ave, NW, Washington, DC 20460, United States
| | - Katarzyna Gawrych
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | | | - Petra Apel
- Federal Environment Agency (UBA), Corrensplatz 1, 14195 Berlin, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-Universität Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
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45
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Silva MJ, Jia T, Samandar E, Preau JL, Calafat AM. Environmental exposure to the plasticizer 1,2-cyclohexane dicarboxylic acid, diisononyl ester (DINCH) in U.S. adults (2000-2012). Environ Res 2013; 126:159-63. [PMID: 23777640 PMCID: PMC4554753 DOI: 10.1016/j.envres.2013.05.007] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 05/03/2013] [Accepted: 05/20/2013] [Indexed: 05/20/2023]
Abstract
1,2-Cyclohexane dicarboxylic acid, diisononyl ester (DINCH) is a complex mixture of nine carbon branched-chain isomers. It has been used in Europe since 2002 as a plasticizer to replace phthalates such as di(2-ethylhexyl)phthalate (DEHP) and diisononyl phthalate (DINP). Urinary concentrations of the oxidative metabolites of DINCH, namely cyclohexane-1,2-dicarboxylic acid-monocarboxy isooctyl ester (MCOCH); cyclohexane-1,2-dicarboxylic acid-mono(oxo-isononyl) ester (MONCH); and cyclohexane-1,2-dicarboxylic acid-mono(hydroxy-isononyl) ester (MHNCH), can potentially be used as DINCH exposure biomarkers. The concentrations of MCOCH, MONCH and MHNCH were measured by online solid phase extraction-high performance liquid chromatography-tandem mass spectrometry in urine collected in 2000 (n=114), 2001 (n=57), 2007 (n=23), 2009 (n=118), 2011 (n=94) and 2012 (n=121) from convenience groups of anonymous U.S. adult volunteers with no known DINCH exposure. None of the DINCH metabolites were detected in samples collected in 2000 and 2001. Only one sample collected in 2007 had measureable concentrations of DINCH metabolites. The detection rate for all three metabolites increased from 2007 to 2012. The presence of oxidative metabolites of DINCH in urine suggests that these oxidative metabolites can be used as DINCH biomarkers for exposure assessment even at environmental exposure levels.
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Affiliation(s)
- Manori J Silva
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA.
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