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Haug LS, Sakhi AK, Cequier E, Casas M, Maitre L, Basagana X, Andrusaityte S, Chalkiadaki G, Chatzi L, Coen M, de Bont J, Dedele A, Ferrand J, Grazuleviciene R, Gonzalez JR, Gutzkow KB, Keun H, McEachan R, Meltzer HM, Petraviciene I, Robinson O, Saulnier PJ, Slama R, Sunyer J, Urquiza J, Vafeiadi M, Wright J, Vrijheid M, Thomsen C. Corrigendum to "In-utero and childhood chemical exposome in six European mother-child cohorts" [Environ. Int. 121(Part 1) (2018) 751-763]. Environ Int 2024; 185:108376. [PMID: 38087670 DOI: 10.1016/j.envint.2023.108376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Affiliation(s)
| | | | | | - Maribel Casas
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Léa Maitre
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Xavier Basagana
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Sandra Andrusaityte
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | | | - Leda Chatzi
- Department of Social Medicine, University of Crete, Greece; Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA; Department of Genetics & Cell Biology, Maastricht University, Maastricht, The Netherlands
| | - Muireann Coen
- Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, UK; Discovery Safety, Drug Safety and Metabolism, AstraZeneca, Cambridge, UK
| | - Jeroen de Bont
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Audrius Dedele
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Joane Ferrand
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Inserm, CNRS, University Grenoble Alpes, Institute of Advanced Biosciences, Joint Research Center (U1209), Grenoble (La Tronche), France; CHU Grenoble Alpes, CIC Pédiatrique, Grenoble, France
| | | | | | | | - Hector Keun
- Division of Cancer, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | | | | | - Inga Petraviciene
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Oliver Robinson
- MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, UK
| | - Pierre-Jean Saulnier
- Clinical Investigation Center CIC1402, Inserm, CHU Poitiers, School of Medicine, University of Poitiers, Poitiers, France
| | - Rémy Slama
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Inserm, CNRS, University Grenoble Alpes, Institute of Advanced Biosciences, Joint Research Center (U1209), Grenoble (La Tronche), France
| | - Jordi Sunyer
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - José Urquiza
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | | | - John Wright
- Bradford Institute for Health Research, Bradford, UK
| | - Martine Vrijheid
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
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2
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Nübler S, Esteban López M, Castaño A, Mol HGJ, Müller J, Schäfer M, Haji-Abbas-Zarrabi K, Hajslova J, Pulkrabova J, Dvorakova D, Urbancova K, Koch HM, Antignac JP, Sakhi AK, Vorkamp K, Burkhardt T, Scherer M, Göen T. External Quality Assurance Schemes (EQUASs) and Inter-laboratory Comparison Investigations (ICIs) for human biomonitoring of polycyclic aromatic hydrocarbon (PAH) biomarkers in urine as part of the quality assurance programme under HBM4EU. Int J Hyg Environ Health 2023; 250:114169. [PMID: 37099846 DOI: 10.1016/j.ijheh.2023.114169] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 12/22/2022] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/28/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) were included as priority substances for human biomonitoring (HBM) in the European Human Biomonitoring Initiative (HBM4EU), which intended to harmonise and advance HBM across Europe. For this project, a specific Quality Assurance and Quality Control (QA/QC) programme applying Inter-laboratory Comparison Investigations (ICIs) and External Quality Assurance Schemes (EQUASs) was developed to ensure the comparability and accuracy of participating analytical laboratories. This paper presents the results of four ICI/EQUAS rounds for the determination of 13 PAH metabolites in urine, i.e. 1-naphthol, 2-naphthol, 1,2-dihydroxynaphthalene, 2-, 3- and 9-hydroxyfluorene, 1-, 2-, 3-, 4- and 9-hydroxyphenanthrene, 1-hydroxypyrene and 3-hydroxybenzo(a)pyrene. However, 4 PAH metabolites could not be evaluated as the analytical capacity of participating laboratories was too low. Across all rounds and biomarkers, 86% of the participants achieved satisfactory results, although low limits of quantification were required to quantify the urinary metabolites at exposure levels of the general population. Using high-performance liquid or gas chromatography coupled with mass spectrometry (HPLC-MS; GC-MS) and isotope dilution for calibration as well as performing an enzymatic deconjugation step proved to be favourable for the accurate determination of PAHs in urine. Finally, the HBM4EU QA/QC programme identified an international network of laboratories providing comparable results in the analysis of urinary PAH biomarkers, although covering all parameters initially selected was still too challenging.
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Affiliation(s)
- Stefanie Nübler
- Friedrich-Alexander Universität Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Marta Esteban López
- National Center for Environmental Health, Instituto de Salud Carlos III, Ctra. Majadahonda a Pozuelo Km2,2, 28220, Madrid, Spain
| | - Argelia Castaño
- National Center for Environmental Health, Instituto de Salud Carlos III, Ctra. Majadahonda a Pozuelo Km2,2, 28220, Madrid, Spain
| | - Hans G J Mol
- Wageningen Food Safety Research, Part of Wageningen University and Research, Akkermaalsbos 2, 6708 WB, Wageningen, the Netherlands
| | - Johannes Müller
- Friedrich-Alexander Universität Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Moritz Schäfer
- Friedrich-Alexander Universität Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Karin Haji-Abbas-Zarrabi
- Friedrich-Alexander Universität Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Jana Hajslova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition (VSCHT), Technicka 5, 16028, Prague, Czech Republic
| | - Jana Pulkrabova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition (VSCHT), Technicka 5, 16028, Prague, Czech Republic
| | - Darina Dvorakova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition (VSCHT), Technicka 5, 16028, Prague, Czech Republic
| | - Katerina Urbancova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition (VSCHT), Technicka 5, 16028, Prague, Czech Republic
| | - 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, 44789, Bochum, Germany
| | - Jean-Philippe Antignac
- Oniris, INRAE, UMR 1329, Laboratoire D'Etude des Résidus et Contaminants Dans les Aliments (LABERCA), F-44307, Nantes, France
| | | | - Katrin Vorkamp
- Aarhus University, Department of Environmental Science, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Therese Burkhardt
- ABF Analytisch-Biologisches Forschungslabor GmbH, Semmelweisstr. 5, 82152, Planegg, Germany
| | - Max Scherer
- ABF Analytisch-Biologisches Forschungslabor GmbH, Semmelweisstr. 5, 82152, Planegg, Germany
| | - Thomas Göen
- Friedrich-Alexander Universität Erlangen-Nürnberg, Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestraße 9-11, 91054, Erlangen, Germany.
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3
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Vogel N, Lange R, Schmidt P, Rodriguez Martin L, Remy S, Springer A, Puklová V, Černá M, Rudnai P, Középesy S, Janasik B, Ligocka D, Fábelová L, Kolena B, Petrovicova I, Jajcaj M, Eštóková M, Esteban-Lopez M, Castaño A, Tratnik JS, Stajnko A, Knudsen LE, Toppari J, Main KM, Juul A, Andersson AM, Jørgensen N, Frederiksen H, Thomsen C, Sakhi AK, Åkesson A, Hartmann C, Dewolf MC, Koppen G, Biot P, Den Hond E, Voorspoels S, Gilles L, Govarts E, Murawski A, Gerofke A, Weber T, Rüther M, Gutleb AC, Guignard C, Berman T, Koch HM, Kolossa-Gehring M. Exposure to Phthalates in European Children, Adolescents and Adults since 2005: A Harmonized Approach Based on Existing HBM Data in the HBM4EU Initiative. Toxics 2023; 11:241. [PMID: 36977006 PMCID: PMC10057641 DOI: 10.3390/toxics11030241] [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] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Phthalates are mainly used as plasticizers and are associated inter alia with adverse effects on reproductive functions. While more and more national programs in Europe have started monitoring internal exposure to phthalates and its substitute 1,2-Cyclohexanedicarboxylic acid (DINCH), the comparability of results from such existing human biomonitoring (HBM) studies across Europe is challenging. They differ widely in time periods, study samples, degree of geographical coverage, design, analytical methodology, biomarker selection, and analytical quality assurance level. The HBM4EU initiative has gathered existing HBM data of 29 studies from participating countries, covering all European regions and Israel. The data were prepared and aggregated by a harmonized procedure with the aim to describe-as comparably as possible-the EU-wide general population's internal exposure to phthalates from the years 2005 to 2019. Most data were available from Northern (up to 6 studies and up to 13 time points), Western (11; 19), and Eastern Europe (9; 12), e.g., allowing for the investigation of time patterns. While the bandwidth of exposure was generally similar, we still observed regional differences for Butyl benzyl phthalate (BBzP), Di(2-ethylhexyl) phthalate (DEHP), Di-isononyl phthalate (DiNP), and Di-isobutyl phthalate (DiBP) with pronounced decreases over time in Northern and Western Europe, and to a lesser degree in Eastern Europe. Differences between age groups were visible for Di-n-butyl phthalate (DnBP), where children (3 to 5-year olds and 6 to 11-year olds) had lower urinary concentrations than adolescents (12 to 19-year-olds), who in turn had lower urinary concentrations than adults (20 to 39-year-olds). This study is a step towards making internal exposures to phthalates comparable across countries, although standardized data were not available, targeting European data sets harmonized with respect to data formatting and calculation of aggregated data (such as developed within HBM4EU), and highlights further suggestions for improved harmonization in future studies.
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Affiliation(s)
- Nina Vogel
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Rosa Lange
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Phillipp Schmidt
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | | | - Sylvie Remy
- Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Andrea Springer
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Vladimíra Puklová
- National Institute of Public Health, Centre for Health and Environment, 10000 Prague, Czech Republic
| | - Milena Černá
- National Institute of Public Health, Centre for Health and Environment, 10000 Prague, Czech Republic
| | - Péter Rudnai
- National Public Health Center, Environmental Health Unit of the Department of Public Health Laboratory, 1097 Budapest, Hungary
| | - Szilvia Középesy
- National Public Health Center, Environmental Health Unit of the Department of Public Health Laboratory, 1097 Budapest, Hungary
| | - Beata Janasik
- Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland
| | - Danuta Ligocka
- Nofer Institute of Occupational Medicine, 91-348 Lodz, Poland
| | - Lucia Fábelová
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, 83303 Bratislava, Slovakia
| | - Branislav Kolena
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 94901 Nitra, Slovakia
| | - Ida Petrovicova
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 94901 Nitra, Slovakia
| | - Michal Jajcaj
- Public Health Authority, Department of Environment and Health, 83105 Bratislava, Slovakia
| | - Milada Eštóková
- Public Health Authority, Department of Environment and Health, 83105 Bratislava, Slovakia
| | | | | | - Janja Snoj Tratnik
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia
| | - Anja Stajnko
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia
| | - Lisbeth E. Knudsen
- Department of Public Health, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Jorma Toppari
- Research Centre for Integrative Physiology and Pharmacology, Institute of Biomedicine, University of Turku, 20520 Turku, Finland
- Department of Pediatrics, Turku University Hospital, 20521 Turku, Finland
| | - Katharina M. Main
- Department of Growth and Reproduction, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Anders Juul
- Department of Growth and Reproduction, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Anna-Maria Andersson
- Department of Growth and Reproduction, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Niels Jørgensen
- Department of Growth and Reproduction, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Copenhagen University Hospital—Rigshospitalet, 2100 Copenhagen, Denmark
| | - Cathrine Thomsen
- Department of Food Safety, Norwegian Institute of Public Health, 0456 Oslo, Norway
| | - Amrit Kaur Sakhi
- Department of Food Safety, Norwegian Institute of Public Health, 0456 Oslo, Norway
| | - Agneta Åkesson
- Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | | | | | - Gudrun Koppen
- Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Pierre Biot
- Federal Public Service Health, Food Chain Safety and Environment, 1060 Brussels, Belgium
| | - Elly Den Hond
- Department of Environment and Health, Provincial Institute of Hygiene (PIH), 2000 Antwerp, Belgium
| | - Stefan Voorspoels
- Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Liese Gilles
- Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Eva Govarts
- Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Aline Murawski
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Antje Gerofke
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Till Weber
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Maria Rüther
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
| | - Arno C. Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, L-4422 Belvaux, Luxembourg
| | - Cedric Guignard
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, L-4422 Belvaux, Luxembourg
| | - Tamar Berman
- Department of Environmental Health, Ministry of Health, Jerusalem 9446724, Israel
| | - 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
| | - Marike Kolossa-Gehring
- German Environment Agency (UBA), Department of Toxicology, Health-Related Environmental Monitoring, 14195 Berlin, Germany
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4
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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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5
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van der Schyff V, Kalina J, Govarts E, Gilles L, Schoeters G, Castaño A, Esteban-López M, Kohoutek J, Kukučka P, Covaci A, Koppen G, Andrýsková L, Piler P, Klánová J, Jensen TK, Rambaud L, Riou M, Lamoree M, Kolossa-Gehring M, Vogel N, Weber T, Göen T, Gabriel C, Sarigiannis DA, Sakhi AK, Haug LS, Murinova LP, Fabelova L, Tratnik JS, Mazej D, Melymuk L. Exposure to flame retardants in European children - Results from the HBM4EU aligned studies. Int J Hyg Environ Health 2023; 247:114070. [PMID: 36442457 PMCID: PMC9758617 DOI: 10.1016/j.ijheh.2022.114070] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/29/2022] [Accepted: 11/03/2022] [Indexed: 11/26/2022]
Abstract
Many legacy and emerging flame retardants (FRs) have adverse human and environmental health effects. This study reports legacy and emerging FRs in children from nine European countries from the HBM4EU aligned studies. Studies from Belgium, Czech Republic, Germany, Denmark, France, Greece, Slovenia, Slovakia, and Norway conducted between 2014 and 2021 provided data on FRs in blood and urine from 2136 children. All samples were collected and analyzed in alignment with the HBM4EU protocols. Ten halogenated FRs were quantified in blood, and four organophosphate flame retardants (OPFR) metabolites quantified in urine. Hexabromocyclododecane (HBCDD) and decabromodiphenyl ethane (DBDPE) were infrequently detected (<16% of samples). BDE-47 was quantified in blood from Greece, France, and Norway, with France (0.36 ng/g lipid) having the highest concentrations. BDE-153 and -209 were detected in <40% of samples. Dechlorane Plus (DP) was quantified in blood from four countries, with notably high median concentrations of 16 ng/g lipid in Slovenian children. OPFR metabolites had a higher detection frequency than other halogenated FRs. Diphenyl phosphate (DPHP) was quantified in 99% of samples across 8 countries at levels ∼5 times higher than other OPFR metabolites (highest median in Slovenia of 2.43 ng/g lipid). FR concentrations were associated with lifestyle factors such as cleaning frequency, employment status of the father of the household, and renovation status of the house, among others. The concentrations of BDE-47 in children from this study were similar to or lower than FRs found in adult matrices in previous studies, suggesting lower recent exposure and effectiveness of PBDE restrictions.
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Affiliation(s)
| | - Jiři Kalina
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, 2400, Belgium
| | - Liese Gilles
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, 2400, Belgium
| | - Greet Schoeters
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, 2400, Belgium,Department of Biomedical Sciences, University of Antwerp, 2020, Antwerp, Belgium
| | - Argelia Castaño
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Marta Esteban-López
- National Centre for Environmental Health, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Jiři Kohoutek
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Petr Kukučka
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Adrian Covaci
- Toxicological Center, University of Antwerp, 2610 Wilrijk, Belgium
| | - Gudrun Koppen
- VITO Health, Flemish Institute for Technological Research (VITO), Mol, 2400, Belgium
| | - Lenka Andrýsková
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Pavel Piler
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Jana Klánová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Tina Kold Jensen
- Department of Environmental Medicine, Institute of Public Health, University of Southern Denmark, Odense, 5000, Denmark
| | - Loic Rambaud
- Santé Publique France, French Public Health Agency (ANSP), Saint-Maurice, 94415, France
| | - Margaux Riou
- Santé Publique France, French Public Health Agency (ANSP), Saint-Maurice, 94415, France
| | - Marja Lamoree
- Vrije Universiteit, Amsterdam Institute for Life and Environment, Section Chemistry for Environment & Health, De Boelelaan 1108, 1081 HZ, Amsterdam, Netherlands
| | | | - Nina Vogel
- German Environment Agency (UBA), 06844 Dessau-Roßlau, Germany
| | - Till Weber
- German Environment Agency (UBA), 06844 Dessau-Roßlau, Germany
| | - Thomas Göen
- IPASUM - Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Henkestrasse 9-11, 91054, Erlangen, 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
| | - Dimosthenis A. 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
| | - Amrit Kaur Sakhi
- Department of Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Line Småstuen Haug
- Department of Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Lucia Fabelova
- Faculty of Public Health, Slovak Medical University, Bratislava, 833 03, Slovakia
| | - Janja Snoj Tratnik
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Darja Mazej
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, 1000, Slovenia
| | - Lisa Melymuk
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic,Corresponding author.
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6
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Strømmen K, Lyche JL, Moltu SJ, Müller MHB, Blakstad EW, Brække K, Sakhi AK, Thomsen C, Nakstad B, Rønnestad AE, Drevon CA, Iversen PO. Estimated daily intake of phthalates, parabens, and bisphenol A in hospitalised very low birth weight infants. Chemosphere 2022; 309:136687. [PMID: 36206919 DOI: 10.1016/j.chemosphere.2022.136687] [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: 06/11/2022] [Revised: 09/18/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Very low birth weight infants (VLBW, birth weight (BW) < 1500 g) are exposed to phthalates, parabens and bisphenol A (BPA) early in life. We estimated daily intake (EDI) of these excipients in 40 VLBW infants the first and fifth week of life while hospitalised. Based on urinary samples collected in 2010, EDI was calculated and compared to the tolerable daily intake (TDI) with hazard quotients (HQs) evaluated. A HQ > 1 indicates that EDI exceeded TDI with increased risk of adverse health effects. EDI was higher in VLBW infants compared to term-born infants and older children. VLBW infants born at earlier gestational age (GA), or with lower BW, had higher EDI than infants born at later GA or with higher BW. First week median EDI for BPA was higher than TDI in 100% of infants, in 75% for di(2-ethylhexyl) phthalate (DEHP), 90% for the sum of butyl benzyl phthalate (BBzP), di-n-butyl phthalate (DnBP), DEHP and di-iso-nonyl phthalate (DiNP) = ∑BBzP+DnBP+DEHP+DiNP, and in 50% of infants for propylparaben (PrPa), indicating increased risk of adverse effects. Fifth week EDI remained higher than TDI in all infants for BPA, in 75% for DEHP and ∑BBzP+DnBP+DEHP+DiNP, and 25% of infants for PrPa, indicating prolonged risk. Maximum EDI for di-iso-butyl phthalate was higher than TDI suggesting risk of adverse effects at maximum exposure. VLBW infants born earlier than 28 weeks GA had higher EDI, above TDI, for PrPa compared to infants born later than 28 weeks GA. Infants with late-onset septicaemia (LOS) had higher EDI for DEHP, ∑BBzP+DnBP+DEHP+DiNP and BPA, above TDI, compared to infants without LOS. More 75% of the infants' EDI for DEHP and ∑BBzP+DnBP+DEHP+DiNP, 25% for PrPa, and 100% of infants' EDI for BPA, were above TDI resulting in HQs > 1, indicating increased risk of adverse health effects.
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Affiliation(s)
- Kenneth Strømmen
- Division of Paediatric and Adolescent Medicine, Department of Neonatal Intensive Care, Rikshospitalet, Oslo University Hospital, Norway.
| | - Jan Ludvig Lyche
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Sissel Jennifer Moltu
- Division of Paediatric and Adolescent Medicine, Department of Neonatal Intensive Care, Ullevål, Oslo University Hospital, Norway
| | - Mette H B Müller
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Elin Wahl Blakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Kristin Brække
- Division of Paediatric and Adolescent Medicine, Department of Neonatal Intensive Care, Ullevål, Oslo University Hospital, Norway
| | | | | | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway; Division of Paediatric and Adolescent Medicine, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
| | - Arild Erlend Rønnestad
- Division of Paediatric and Adolescent Medicine, Department of Neonatal Intensive Care, Rikshospitalet, Oslo University Hospital, Norway; Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Norway
| | - Christian A Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
| | - Per Ole Iversen
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Haematology, Oslo University Hospital, Norway
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7
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Deepika D, Sharma RP, Schuhmacher M, Sakhi AK, Thomsen C, Chatzi L, Vafeiadi M, Quentin J, Slama R, Grazuleviciene R, Andrušaitytė S, Waiblinger D, Wright J, Yang TC, Urquiza J, Vrijheid M, Casas M, Domingo JL, Kumar V. Unravelling sex-specific BPA toxicokinetics in children using a pediatric PBPK model. Environ Res 2022; 215:114074. [PMID: 35995217 DOI: 10.1016/j.envres.2022.114074] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Bisphenol A (BPA) is a widely known endocrine disruptor (ED) found in many children's products such as toys, feeding utensils, and teething rings. Recent epidemiology association studies have shown postnatal BPA exposure resulted in developing various diseases such as diabetes, obesity, and neurodegeneration, etc., later in their lives. However, little is known about its sex-specific metabolism and consequently internal exposure. The aim of this study was to develop a sex-specific pediatric physiologically based pharmacokinetic model (PBPK) for BPA to compare their toxicokinetic differences. First, the published adult PBPK model was re-validated, and then this model was extended by interpolation to incorporate pediatric sex specific physiological and biochemical parameters. We used both the classical body weight and ontogeny-based scaling approach to interpolate the metabolic process. Then, the pharmacokinetic attributes of the models using the two-scaling approach mentioned above were compared with adult model. Further, a sex-specific PBPK model with an ontogeny scaling approach was preferred to evaluate the pharmacokinetic differences. Moreover, this model was used to reconstruct the BPA exposure from two cohorts (Helix and PBAT Cohort) from 7 EU countries. The half-life of BPA was found to be almost the same in boys and girls at the same exposure levels. Our model estimated BPA children's exposure to be about 1500 times higher than the tolerable daily intake (TDI) recently set by European Food Safety Authority (EFSA) i.e., 0.04 ng/kg BW/day. The model demonstrated feasibility of extending the adult PBPK to sex-specific pediatric, thus investigate a gender-specific health risk assessment.
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Affiliation(s)
- Deepika Deepika
- Environmental Engineering Laboratory, Departament D' Enginyeria Quimica, Universitat Rovira I Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain
| | - Raju Prasad Sharma
- Environmental Engineering Laboratory, Departament D' Enginyeria Quimica, Universitat Rovira I Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain
| | - Marta Schuhmacher
- Environmental Engineering Laboratory, Departament D' Enginyeria Quimica, Universitat Rovira I Virgili, Av. Països Catalans 26, 43007, Tarragona, Catalonia, Spain
| | | | | | - Leda Chatzi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Joane Quentin
- Team of Environmental Epidemiology, IAB, Institute for Advanced Biosciences, Inserm, CNRS, CHU-Grenoble-Alpes, University Grenoble-Alpes, CNRS, Grenoble, France
| | - Remy Slama
- Team of Environmental Epidemiology, IAB, Institute for Advanced Biosciences, Inserm, CNRS, CHU-Grenoble-Alpes, University Grenoble-Alpes, CNRS, Grenoble, France
| | | | - Sandra Andrušaitytė
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Dagmar Waiblinger
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Tiffany C Yang
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Jose Urquiza
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Martine Vrijheid
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Maribel Casas
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - José L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira I Virgili, Reus, Spain
| | - Vikas 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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8
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Sarzo B, Abumallouh R, Marín N, Llop S, Beneito A, Lopez-Flores I, Ferrero N, Sakhi AK, Ballester F, Lopez-Espinosa MJ. Association between phenols and thyroid hormones: The role of iodothyronine deiodinase genes. Environ Pollut 2022; 311:119926. [PMID: 35964788 DOI: 10.1016/j.envpol.2022.119926] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 04/19/2022] [Revised: 07/21/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Previous literature on prenatal phenol exposure and thyroid hormone (TH) alteration is conflicting, and the possible mechanisms of action involved remain unclear. We aimed to examine the association between prenatal phenol exposure and levels of maternal and neonatal THs, as well as the possible role of iodothyronine deiodinase (DIO) gene polymorphisms in this relation. We studied 387 Spanish mother-neonate pairs with measurements of maternal phenols, total triiodothyronine (TT3) and free thyroxine (FT4), maternal and neonatal thyroid-stimulating hormone (TSH), and maternal genotypes for single nucleotide polymorphisms in the DIO1(rs2235544) and DIO2(rs12885300) genes. We implemented multivariate linear and weighted quantile sum (WQS) regressions to examine the association between phenols and THs (including sex-stratified models for neonatal TSH) and investigated effect modification of genotypes in the maternal phenol-TH associations. In single exposure models, we found negative associations between maternal triclosan (TCS) and neonatal TSH (% change [95%CI]: -2.95 [-5.70, -0.11], per twofold phenol increase) - stronger for girls - and less clearly for maternal ethylparaben (EPB) and TSH (-2.27 [-4.55, 0.07]). In phenol mixture models, we found no association with THs. In the genetic interaction models, we found some evidence of effect modification of DIO gene polymorphisms with stronger negative associations between methylparaben (MPB), propylparaben (PPB), butylparaben (BPB) and TT3 as well as bisphenol A (BPA) and FT4 for DIO1(rs2235544)-CC. Stronger inverse associations for genotypes DIO2(rs12885300)-CC and DIO2(rs12885300)-CT and positive ones for DIO2(rs12885300)-TT were also reported for BPA and FT4. In conclusion, we found some evidence of an association between phenols and TSH during pregnancy and at birth in single exposure models, the latter being stronger for girls. Since no association was observed between maternal levels of phenols and TT3 or FT4, the possible role of the genetic background in these associations warrants further investigation.
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Affiliation(s)
- Blanca Sarzo
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Department of Microbiology and Ecology, University of Valencia, Valencia, Spain; School of Mathematics, University of Edinburgh, Edinburgh, UK
| | - Reem Abumallouh
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Natalia Marín
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | - Sabrina Llop
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - Andrea Beneito
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain
| | | | - Nerea Ferrero
- Clinical Chemistry Unit, Public Health Laboratory of Bilbao, Bizcaia, Spain
| | | | - Ferran Ballester
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Faculty of Nursing and Chiropody, University of Valencia, Valencia, Spain
| | - Maria-Jose Lopez-Espinosa
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Faculty of Nursing and Chiropody, University of Valencia, Valencia, Spain
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9
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Vaccher V, Lopez ME, Castaño A, Mol H, Haji-Abbas-Zarrabi K, Bury D, Koch HM, Dvorakova D, Hajslova J, Nübler S, Kaur Sakhi A, Thomsen C, Vorkamp K, Göen T, Antignac JP. European interlaboratory comparison investigations (ICI) and external quality assurance schemes (EQUAS) for the analysis of bisphenol A, S and F in human urine: Results from the HBM4EU project. Environ Res 2022; 210:112933. [PMID: 35182598 DOI: 10.1016/j.envres.2022.112933] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 01/18/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
The Human Biomonitoring for Europe initiative (HBM4EU) aims to study the exposure of citizens to chemicals and potentially associated health effects. One objective of this project has been to build a network of laboratories able to answer to the requirements of European human biomonitoring studies. Within the HBM4EU quality assurance and quality control scheme (QA/QC), a number of interlaboratory comparison investigations (ICIs) and external quality assurance schemes (EQUASs) were organized to ensure data consistency, comparability and reliability. Bisphenols are among the prioritized substance groups in HBM4EU, including bisphenol A (BPA), bisphenol S (BPS) and bisphenol F (BPF) in human urine. In four rounds of ICI/EQUAS, two target concentration levels were considered, related to around P25 and P95 of the typical exposure distribution observed in the European general population. Special attention was paid to the conjugated phase II metabolites known to be most dominant in samples of environmentally exposed individuals, through the analysis of both native samples and samples fortified with glucuronide forms. For the low level, the average percentage of satisfactory results across the four rounds was 83% for BPA, 71% for BPS and 62% for BPF. For the high level, the percentages of satisfactory results increased to 93% for BPA, 89% for BPS and 86% for BPF. 24 out of 32 participating laboratories (75%) were approved for the analyses of BPA in the HBM4EU project according to the defined criterion of Z-scores for both low and high concentration levels in at least two ICI/EQUAS rounds. For BPS and BPF, the number of qualified laboratories was 18 out of 27 (67%) and 13 out of 28 (46%), respectively. These results demonstrate a strong analytical capability for BPA and BPS in Europe, while improvements may be needed for BPF.
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Affiliation(s)
- Vincent Vaccher
- Oniris, INRAE, UMR 1329, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), F-44307, Nantes, France
| | - Marta Esteban Lopez
- National Center for Environmental Health, Instituto de Salud Carlos III, Ctra. Majadahonda a Pozuelo km 2,2, 28220, Madrid, Spain
| | - Argelia Castaño
- National Center for Environmental Health, Instituto de Salud Carlos III, Ctra. Majadahonda a Pozuelo km 2,2, 28220, Madrid, Spain
| | - Hans Mol
- Wageningen Food Safety Research - part of, Wageningen University and Research, Akkermaalsbos 2, WB, 6708, Wageningen, the Netherlands
| | - Karin Haji-Abbas-Zarrabi
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Daniel Bury
- 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, 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, 44789, Bochum, Germany
| | - Darina Dvorakova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition, Technicka 5, 16000, Prague, Czech Republic
| | - Jana Hajslova
- University of Chemistry and Technology Prague, Department of Food Analysis and Nutrition, Technicka 5, 16000, Prague, Czech Republic
| | - Stefanie Nübler
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Amrit Kaur Sakhi
- Section for Food Safety, Norwegian Institute of Public Health, Oslo, Norway
| | - Cathrine Thomsen
- Section for Food Safety, Norwegian Institute of Public Health, Oslo, Norway
| | - Katrin Vorkamp
- Aarhus University, Department of Environmental Science, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - Thomas Göen
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany
| | - Jean-Philippe Antignac
- Oniris, INRAE, UMR 1329, Laboratoire d'Étude des Résidus et Contaminants dans les Aliments (LABERCA), F-44307, Nantes, France.
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Strømmen K, Lyche JL, Moltu SJ, Müller MHB, Blakstad EW, Almaas AN, Sakhi AK, Thomsen C, Nakstad B, Rønnestad AE, Drevon CA, Iversen PO. Corrigendum to "High urinary concentrations of parabens and bisphenol A in very low birth weight infants" [Chemosphere 271 (2021) 129570]. Chemosphere 2021; 275:130613. [PMID: 33931266 DOI: 10.1016/j.chemosphere.2021.130613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Kenneth Strømmen
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Rikshospitalet, Oslo University Hospital, Norway; Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway.
| | - Jan Ludvig Lyche
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Sissel Jennifer Moltu
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Ullevål, Oslo University Hospital, Norway
| | - Mette H B Müller
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Elin Wahl Blakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Astrid Nylander Almaas
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | | | | | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Arild Erlend Rønnestad
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Rikshospitalet, Oslo University Hospital, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
| | - Christian A Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
| | - Per Ole Iversen
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Haematology, Oslo University Hospital, Norway
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Strømmen K, Lyche JL, Moltu SJ, Müller MHB, Blakstad EW, Almaas AN, Sakhi AK, Thomsen C, Nakstad B, Rønnestad AE, Drevon CA, Iversen PO. High urinary concentrations of parabens and bisphenol A in very low birth weight infants. Chemosphere 2021; 271:129570. [PMID: 33453489 DOI: 10.1016/j.chemosphere.2021.129570] [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: 09/01/2020] [Revised: 12/12/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Very low birth weight infants (VLBW; birth weight < 1500 g) are treated with pharmaceuticals and medical equipment containing parabens and bisphenol A (BPA). Parabens are used in pharmaceuticals, whereas BPA in medical equipment where concentrations are rarely reported in hospitalised VLBW infants. We measured urinary concentrations of parabens and BPA and hypothesised high and increasing concentrations in infants born at lower gestational ages (GAs), and among infants with bronchopulmonary dysplasia (BPD) and late-onset septicaemia (LOS) due to higher exposure from pharmaceuticals and medical equipment. Urinary samples were collected during the first (n = 38) and fifth (n = 36) week of life. Methylparaben, ethylparaben, propylparaben, butylparaben, and BPA concentrations were measured using ultra high-performance liquid chromatography coupled to tandem mass spectrometry. VLBW infants had very high urinary concentrations of parabens and BPA compared to term infants and older children. The Σ paraben concentration was higher than detected in previous studies on premature infants. Lower GA at birth was associated with higher concentrations of parabens and BPA. Infants born before 28 weeks GA had higher first week concentrations of propylparaben (38.6 vs. 9.05 ng/mL, p = 0.007), butylparaben (0.28 vs. 0.09 ng/mL, p = 0.05) and fifth week concentrations of BPA (15.1 vs. 6.02 ng/mL, p = 0.02) than infants born after 28 weeks GA. Infants with LOS and BPD had higher fifth week concentrations of BPA than infants without LOS and BPD (LOS: 14.2 vs. 6.77 ng/mL, p = 0.07; BPD: 18.6 vs. 7.62 ng/mL, p = 0.05).
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Affiliation(s)
- Kenneth Strømmen
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Rikshospitalet, Oslo University Hospital, Norway; Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway.
| | - Jan Ludvig Lyche
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Sissel Jennifer Moltu
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Ullevål, Oslo University Hospital, Norway
| | - Mette H B Müller
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Elin Wahl Blakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Astrid Nylander Almaas
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | | | | | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Arild Erlend Rønnestad
- Department of Neonatal Intensive Care, Division of Paediatric and Adolescent Medicine, Rikshospitalet, Oslo University Hospital, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
| | - Christian A Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
| | - Per Ole Iversen
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Haematology, Oslo University Hospital, Norway
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Warembourg C, Maitre L, Tamayo-Uria I, Fossati S, Roumeliotaki T, Aasvang GM, Andrusaityte S, Casas M, Cequier E, Chatzi L, Dedele A, Gonzalez JR, Gražulevičienė R, Haug LS, Hernandez-Ferrer C, Heude B, Karachaliou M, Krog NH, McEachan R, Nieuwenhuijsen M, Petraviciene I, Quentin J, Robinson O, Sakhi AK, Slama R, Thomsen C, Urquiza J, Vafeiadi M, West J, Wright J, Vrijheid M, Basagaña X. Early-Life Environmental Exposures and Blood Pressure in Children. J Am Coll Cardiol 2020; 74:1317-1328. [PMID: 31488269 DOI: 10.1016/j.jacc.2019.06.069] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 04/26/2019] [Accepted: 06/24/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Growing evidence exists about the fetal and environmental origins of hypertension, but mainly limited to single-exposure studies. The exposome has been proposed as a more holistic approach by studying many exposures simultaneously. OBJECTIVES This study aims to evaluate the association between a wide range of prenatal and postnatal exposures and blood pressure (BP) in children. METHODS Systolic and diastolic BP were measured among 1,277 children from the European HELIX (Human Early-Life Exposome) cohort aged 6 to 11 years. Prenatal (n = 89) and postnatal (n = 128) exposures include air pollution, built environment, meteorology, natural spaces, traffic, noise, chemicals, and lifestyles. Two methods adjusted for confounders were applied: an exposome-wide association study considering the exposures independently, and the deletion-substitution-addition algorithm considering all the exposures simultaneously. RESULTS Decreases in systolic BP were observed with facility density (β change for an interquartile-range increase in exposure: -1.7 mm Hg [95% confidence interval (CI): -2.5 to -0.8 mm Hg]), maternal concentrations of polychlorinated biphenyl 118 (-1.4 mm Hg [95% CI: -2.6 to -0.2 mm Hg]) and child concentrations of dichlorodiphenyldichloroethylene (DDE: -1.6 mm Hg [95% CI: -2.4 to -0.7 mm Hg]), hexachlorobenzene (-1.5 mm Hg [95% CI: -2.4 to -0.6 mm Hg]), and mono-benzyl phthalate (-0.7 mm Hg [95% CI: -1.3 to -0.1 mm Hg]), whereas increases in systolic BP were observed with outdoor temperature during pregnancy (1.6 mm Hg [95% CI: 0.2 to 2.9 mm Hg]), high fish intake during pregnancy (2.0 mm Hg [95% CI: 0.4 to 3.5 mm Hg]), maternal cotinine concentrations (1.2 mm Hg [95% CI: -0.3 to 2.8 mm Hg]), and child perfluorooctanoate concentrations (0.9 mm Hg [95% CI: 0.1 to 1.6 mm Hg]). Decreases in diastolic BP were observed with outdoor temperature at examination (-1.4 mm Hg [95% CI: -2.3 to -0.5 mm Hg]) and child DDE concentrations (-1.1 mm Hg [95% CI: -1.9 to -0.3 mm Hg]), whereas increases in diastolic BP were observed with maternal bisphenol-A concentrations (0.7 mm Hg [95% CI: 0.1 to 1.4 mm Hg]), high fish intake during pregnancy (1.2 mm Hg [95% CI: -0.2 to 2.7 mm Hg]), and child copper concentrations (0.9 mm Hg [95% CI: 0.3 to 1.6 mm Hg]). CONCLUSIONS This study suggests that early-life exposure to several chemicals, as well as built environment and meteorological factors, may affect BP in children.
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Affiliation(s)
- Charline Warembourg
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Léa Maitre
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Ibon Tamayo-Uria
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Serena Fossati
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Theano Roumeliotaki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | | | | | - Maribel Casas
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | | | - Lida Chatzi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; Department of Genetics and Cell Biology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands
| | | | - Juan-Ramon Gonzalez
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | | | | | - Carles Hernandez-Ferrer
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Barbara Heude
- INSERM, UMR1153 Epidemiology and Biostatistics Sorbonne Paris Cité Center (CRESS), Early ORigins of the Child's Health and Development Team (ORCHAD), Paris Descartes University, Paris, France
| | - Marianna Karachaliou
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | | | - Rosemary McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - Mark Nieuwenhuijsen
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | | | - Joane Quentin
- Inserm, Université Grenoble Alpes, CNRS, Institute of Advanced Biosciences, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Grenoble, France; CHU Grenoble Alpes, Grenoble, France
| | - Oliver Robinson
- MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
| | | | - Rémy Slama
- Inserm, Université Grenoble Alpes, CNRS, Institute of Advanced Biosciences, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Grenoble, France
| | | | - Jose Urquiza
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Greece
| | - Jane West
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - Martine Vrijheid
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain
| | - Xavier Basagaña
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain; CIBER Epidemiologa y Salud Pública, Madrid, Spain.
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Karrer C, Andreassen M, von Goetz N, Sonnet F, Sakhi AK, Hungerbühler K, Dirven H, Husøy T. The EuroMix human biomonitoring study: Source-to-dose modeling of cumulative and aggregate exposure for the bisphenols BPA, BPS, and BPF and comparison with measured urinary levels. Environ Int 2020; 136:105397. [PMID: 31884417 DOI: 10.1016/j.envint.2019.105397] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/21/2019] [Accepted: 12/05/2019] [Indexed: 05/03/2023]
Abstract
BACKGROUND Bisphenol A (BPA) and, with increasing occurrence, its analogs bisphenol S (BPS) and bisphenol F (BPF) are applied in many consumer products, leading to humans being exposed from a vast number of sources and via several routes. Estrogenic and anti-androgenic effects are exerted by the chemical BPA, and also by its analogs. Therefore, realistic exposure assessments are needed for assessing risks related to cumulative exposure. OBJECTIVES Biomonitoring for BPA, BPS, and BPF was conducted in a human study embedded in the EU project EuroMix and the measured urinary concentrations were compared to source-to-dose calculations for source allocation and plausibility test of the model. METHODS For two 24-hour study periods separated by 2-3 weeks, 144 adult volunteers in Norway kept detailed diaries on food consumption, personal care product (PCP) use, and thermal paper (TP) handling. Concurrently, 24 h urine was collected and urinary levels of BPA, BPS, and BPF were analyzed using ultra-high performance liquid chromatography and tandem mass spectrometry (UPLC-MS-MS). In line with the information obtained from the first study day, bisphenol exposure from food, PCPs, TP, and dust was modeled primarily individual-based with probabilistic models. Estimates for BP excretion over 24 h were obtained with the models and compared to measured amounts. RESULTS Modeled aggregate internal exposures covered the full range of measured urinary amounts for all BP analogs. In general, individual-based medians of modeled BPA exposures were in good agreement with the measurements, but individual-specific correlation was lacking. Modeled exposures mostly underestimated BPS and BPF levels in participants with positive measurements (53% and 8%), except for the P95 values of modeled BPS exposure that were higher than measured amounts if TP was handled. Most likely, diet and TP were the sources contributing the most to BP exposure in this study. Urinary measurements did not reveal a significant correlation between the amounts of canned food consumed, the number of PCPs used, or the number of TP handling events and levels of BPA, BPS, or BPF. CONCLUSIONS The good agreement between the ranges of modeled BPA exposure and measured BPA amounts indicates that available concentrations, especially from the main exposure source food, mirror the exposure situation realistically, and suggests that the exposure model considers the relevant exposure sources. The lack of individual-specific correlations means that the individual measured amounts and modeled exposures did not vary in parallel, e.g. due to mismatch of BP concentrations in food, TP, and other sources, or delayed internal exposure. The underestimation of modeled BPS and BPF exposure suggests that not all relevant sources were included in the respective exposure models. This could be due to a lack of input data, e.g. for food items, or due to an increased replacement of BPA with structural analogs compared to the used concentration and occurrence data.
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Affiliation(s)
- Cecile Karrer
- Swiss Federal Institute of Technology (ETH) Zurich, Institute for Chemical and Bioengineering, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Monica Andreassen
- Norwegian Institute of Public Health, Department of Toxicology and Risk Assessment, Lovisenberggata 6, 0456 Oslo, Norway
| | - Natalie von Goetz
- Swiss Federal Institute of Technology (ETH) Zurich, Institute for Chemical and Bioengineering, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland; Federal Office of Public Health, Schwarzenburgstrasse 157, 3003 Bern, Switzerland.
| | - Friederike Sonnet
- Norwegian Institute of Public Health, Department of Toxicology and Risk Assessment, Lovisenberggata 6, 0456 Oslo, Norway
| | - Amrit Kaur Sakhi
- Norwegian Institute of Public Health, Department of Environmental Exposure and Epidemiology, Lovisenberggata 8, 0456 Oslo, Norway
| | - Konrad Hungerbühler
- Swiss Federal Institute of Technology (ETH) Zurich, Institute for Chemical and Bioengineering, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Hubert Dirven
- Norwegian Institute of Public Health, Department of Toxicology and Risk Assessment, Lovisenberggata 6, 0456 Oslo, Norway
| | - Trine Husøy
- Norwegian Institute of Public Health, Department of Toxicology and Risk Assessment, Lovisenberggata 6, 0456 Oslo, Norway
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Husøy T, Andreassen M, Hjertholm H, Carlsen MH, Norberg N, Sprong C, Papadopoulou E, Sakhi AK, Sabaredzovic A, Dirven HAAM. The Norwegian biomonitoring study from the EU project EuroMix: Levels of phenols and phthalates in 24-hour urine samples and exposure sources from food and personal care products. Environ Int 2019; 132:105103. [PMID: 31470218 DOI: 10.1016/j.envint.2019.105103] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [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: 03/01/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 05/03/2023]
Abstract
BACKGROUND Exposure to multiple chemicals occurs daily through several routes; diet, inhalation and dermal contact. Real-life exposure assessment is needed to understand the risk. Therefore, a human biomonitoring (BM) study was performed to examine the plausibility of source-to-dose calculations for chemical mixtures in the Horizon 2020 EuroMix project. OBJECTIVES To provide a detailed description of the design of the EuroMix BM study, and to present the initial results for urinary phenols and phthalates and to describe their exposure determinants from foods and personal care products (PCPs). METHOD Adults (44 males and 100 females) kept detailed diaries on their food consumption, PCP use and handling of cash receipts. Urine samples were collected over the same 24-hour period. Urinary levels of four parabens, five bisphenols, oxybenzone/benzophenone-3 (OXBE), triclosan (TCS), triclocarban (TCC) and metabolites of eight phthalates and 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) were analysed by ultra-high-performance liquid chromatography and tandem mass spectrometry. Multivariable linear regressions were performed between PCPs/food categories and each dependent chemical variable separately, and were only sex-stratified when an interactions between sex and the independent variable was significant. RESULTS The detection rate for the metabolites of phthalates and DINCH, and bisphenol A (BPA) and TCS in urine was 88-100%, while bisphenol S (BPS) and bisphenol F (BPF) were only found in 29% and 4% of the urine samples, respectively. Bisphenol B (BPB), bisphenol AF (BPAF) and TCC were not detected. Food groups associated with phenol exposure were meat, bread, beverages and butter and oil. Food determinants for phthalate exposure were sweets, butter and oil, fruit and berries and other foods. The only positive association between the use of PCPs and phenols was found between BPA and lip gloss/balm. Phthalate exposure was associated with the use of shower gel, hand cream (females), toothpaste, anti-wrinkle cream (females) and shaving products (males). CONCLUSION The participants in the EuroMix BM study were exposed to a mixture of phenols and phthalates. A variety of food categories and PCPs were found to be possible sources of these chemicals. This indicates a complex pattern of exposure to numerous chemicals from multiple sources, depending on individual diet and PCP preferences.
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Affiliation(s)
- T Husøy
- 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
| | - M H Carlsen
- University of Oslo, Institute for Basic Medical Science, Department of Nutrition, 0316 Oslo, Norway
| | - N Norberg
- University of Oslo, Institute for Basic Medical Science, Department of Nutrition, 0316 Oslo, Norway
| | - C Sprong
- National Institute for Public Health and the Environment, 3720 BA Bilthoven, the Netherlands
| | - E Papadopoulou
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - A K Sakhi
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - A Sabaredzovic
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
| | - H A A M Dirven
- Norwegian Institute of Public Health, Division of Infection Control and Environmental Health, 0403 Oslo, Norway
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Papadopoulou E, Haug LS, Sakhi AK, Andrusaityte S, Basagaña X, Brantsaeter AL, Casas M, Fernández-Barrés S, Grazuleviciene R, Knutsen HK, Maitre L, Meltzer HM, McEachan RRC, Roumeliotaki T, Slama R, Vafeiadi M, Wright J, Vrijheid M, Thomsen C, Chatzi L. Diet as a Source of Exposure to Environmental Contaminants for Pregnant Women and Children from Six European Countries. Environ Health Perspect 2019; 127:107005. [PMID: 31617753 PMCID: PMC6867312 DOI: 10.1289/ehp5324] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Pregnant women and children are especially vulnerable to exposures to food contaminants, and a balanced diet during these periods is critical for optimal nutritional status. OBJECTIVES Our objective was to study the association between diet and measured blood and urinary levels of environmental contaminants in mother-child pairs from six European birth cohorts (n = 818 mothers and 1,288 children). METHODS We assessed the consumption of seven food groups and the blood levels of organochlorine pesticides, polybrominated diphenyl ethers, polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFAS), and heavy metals and urinary levels of phthalate metabolites, phenolic compounds, and organophosphate pesticide (OP) metabolites. Organic food consumption during childhood was also studied. We applied multivariable linear regressions and targeted maximum likelihood based estimation (TMLE). RESULTS Maternal high (≥ 4 times / week ) versus low (< 2 times / week ) fish consumption was associated with 15% higher PCBs [geometric mean (GM) ratio = 1.15 ; 95% confidence interval (CI): 1.02, 1.29], 42% higher perfluoroundecanoate (PFUnDA) (GM ratio = 1.42 ; 95% CI: 1.20, 1.68), 89% higher mercury (Hg) (GM ratio = 1.89 ; 95% CI: 1.47, 2.41) and a 487% increase in arsenic (As) (GM ratio = 4.87 ; 95% CI: 2.57, 9.23) levels. In children, high (≥ 3 times / week ) versus low (< 1.5 times / week ) fish consumption was associated with 23% higher perfluorononanoate (PFNA) (GM ratio = 1.23 ; 95% CI: 1.08, 1.40), 36% higher PFUnDA (GM ratio = 1.36 ; 95% CI: 1.12, 1.64), 37% higher perfluorooctane sulfonate (PFOS) (GM ratio = 1.37 ; 95% CI: 1.22, 1.54), and > 200 % higher Hg and As [GM ratio = 3.87 (95% CI: 1.91, 4.31) and GM ratio = 2.68 (95% CI: 2.23, 3.21)] concentrations. Using TMLE analysis, we estimated that fish consumption within the recommended 2-3 times/week resulted in lower PFAS, Hg, and As compared with higher consumption. Fruit consumption was positively associated with OP metabolites. Organic food consumption was negatively associated with OP metabolites. DISCUSSION Fish consumption is related to higher PFAS, Hg, and As exposures. In addition, fruit consumption is a source of exposure to OPs. https://doi.org/10.1289/EHP5324.
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Affiliation(s)
- Eleni Papadopoulou
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Line Småstuen Haug
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Amrit Kaur Sakhi
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Sandra Andrusaityte
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Xavier Basagaña
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Anne Lise Brantsaeter
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Maribel Casas
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Sílvia Fernández-Barrés
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | | | - Helle Katrine Knutsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Lea Maitre
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Helle Margrete Meltzer
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Rosemary R. C. McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK
| | - Theano Roumeliotaki
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Remy Slama
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Institut national de la santé et de la recherche médicale (Inserm), Centre national de la recherche scientifique (CNRS), University Grenoble Alpes, Institute for Advanced Biosciences, Joint Research Center (U1209), La Tronche, Grenoble, France
| | - Marina Vafeiadi
- Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals National Health Service (NHS) Foundation Trust, Bradford, UK
| | - Martine Vrijheid
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Cathrine Thomsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Leda Chatzi
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, USA
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Sakhi AK, Cequier E, Becher R, Bølling AK, Borgen AR, Schlabach M, Schmidbauer N, Becher G, Schwarze P, Thomsen C. Concentrations of selected chemicals in indoor air from Norwegian homes and schools. Sci Total Environ 2019; 674:1-8. [PMID: 31003082 DOI: 10.1016/j.scitotenv.2019.04.086] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [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: 01/21/2019] [Revised: 03/15/2019] [Accepted: 04/06/2019] [Indexed: 06/09/2023]
Abstract
Both building materials and consumer products have been identified as possible sources for potentially hazardous substances like phthalates, polychlorinated biphenyls (PCBs), organophosphorous flame retardants (OPFRs), polybrominated diphenyl ethers (PBDEs) and short chain chlorinated paraffins (SCCPs) in indoor air. Thus, indoor air has been suggested to contribute significantly to human exposure to these chemicals. There is lack of data on the occurrence of several of the aforementioned chemicals in indoor air. Therefore, indoor air (gas and particulate phase) was collected from 48 households and 6 classrooms in two counties in Norway. In both the households and schools, median levels of low molecular weight phthalates (785 ng/m3), OPFRs (55 ng/m3) and SCCPs (128 ng/m3) were up to 1000 times higher than the levels of PCBs (829 pg/m3) and PBDEs (167 pg/m3). Median concentrations of dimethyl phthalate (DMP), diethyl phthalate (DEP), di-isobutyl phthalate (DiBP) and SCCPs were 3-6 times higher in households compared to schools. The levels of OPFRs, PCBs and PBDEs were similar in households and schools. In univariate analysis, the indoor concentrations of different environmental chemicals were significantly affected by location of households (OPFRs), airing of living room (some PCBs and PBDEs), presence of upholstered chair/couch (OPFRs), pet animal hold (some PBDEs) and presence of electrical heaters (selected PCBs and PBDEs). Significant correlations were also detected for the total size of households with OPFRs, frequency of vacuuming the living room with selected PCBs and PBDEs, frequency of washing the living room with selected PCBs and the total number of TVs in the households with selected phthalates and SCCPs. Finally, intake estimates indicated that indoor air contributed more or equally to low molecular weight phthalates and SCCPs exposure compared to food consumption, whereas the contribution from indoor air was smaller than the dietary intake for the other groups of chemicals.
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Affiliation(s)
- Amrit Kaur Sakhi
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway.
| | - Enrique Cequier
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway
| | - Rune Becher
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway
| | - Anette Kocbach Bølling
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway
| | - Anders R Borgen
- Norwegian Institute for Air Research, PO Box 100, 2027, Kjeller, Norway
| | - Martin Schlabach
- Norwegian Institute for Air Research, PO Box 100, 2027, Kjeller, Norway
| | | | - Georg Becher
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway; Department of Chemistry, University of Oslo, PO Box 1033, Blindern, 0315 Oslo, Norway
| | - Per Schwarze
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway
| | - Cathrine Thomsen
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, N-0213 Oslo, Norway
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Haug LS, Sakhi AK, Cequier E, Casas M, Maitre L, Basagana X, Andrusaityte S, Chalkiadaki G, Chatzi L, Coen M, de Bont J, Dedele A, Ferrand J, Grazuleviciene R, Gonzalez JR, Gutzkow KB, Keun H, McEachan R, Meltzer HM, Petraviciene I, Robinson O, Saulnier PJ, Slama R, Sunyer J, Urquiza J, Vafeiadi M, Wright J, Vrijheid M, Thomsen C. In-utero and childhood chemical exposome in six European mother-child cohorts. Environ Int 2018; 121:751-763. [PMID: 30326459 DOI: 10.1016/j.envint.2018.09.056] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [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: 06/11/2018] [Revised: 09/26/2018] [Accepted: 09/30/2018] [Indexed: 05/20/2023]
Abstract
BACKGROUND Harmonized data describing simultaneous exposure to a large number of environmental contaminants in-utero and during childhood is currently very limited. OBJECTIVES To characterize concentrations of a large number of environmental contaminants in pregnant women from Europe and their children, based on chemical analysis of biological samples from mother-child pairs. METHODS We relied on the Early-Life Exposome project, HELIX, a collaborative project across six established population-based birth cohort studies in Europe. In 1301 subjects, biomarkers of exposure to 45 contaminants (i.e. organochlorine compounds, polybrominated diphenyl ethers, per- and polyfluoroalkyl substances, toxic and essential elements, phthalate metabolites, environmental phenols, organophosphate pesticide metabolites and cotinine) were measured in biological samples from children (6-12 years) and their mothers during pregnancy, using highly sensitive biomonitoring methods. RESULTS Most of the exposure biomarkers had high detection frequencies in mothers (35 out of 45 biomarkers with >90% detected) and children (33 out of 45 biomarkers with >90% detected). Concentrations were significantly different between cohorts for all compounds, and were generally higher in maternal compared to children samples. For most of the persistent compounds the correlations between maternal and child concentrations were moderate to high (Spearman Rho > 0.35), while for most non-persistent compounds correlations were considerably lower (Spearman Rho < 0.15). For mercury, PFOS and PFOA a considerable proportion of the samples of both mothers and their children exceeded the HBM I value established by The Human Biomonitoring Commission of the German Federal Environment Agency. DISCUSSION Although not based on a representative sample, our study suggests that children across Europe are exposed to a wide range of environmental contaminants in fetal life and childhood including many with potential adverse effects. For values exceeding the HBM I value identification of specific sources of exposure and reducing exposure in an adequate way is recommended. Considerable variability in this "chemical exposome" was seen between cohorts, showing that place of residence is a strong determinant of one's personal exposome. This extensive dataset comprising >100,000 concentrations of environmental contaminants in mother-child pairs forms a unique possibility for conducting epidemiological studies using an exposome approach.
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Affiliation(s)
| | | | | | - Maribel Casas
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Léa Maitre
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Xavier Basagana
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Sandra Andrusaityte
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | | | - Leda Chatzi
- Department of Social Medicine, University of Crete, Greece; Department of Preventive Medicine, University of Southern California, Los Angeles, CA, USA; Department of Genetics & Cell Biology, Maastricht University, Maastricht, the Netherlands
| | - Muireann Coen
- Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, UK; Discovery Safety, Drug Safety and Metabolism, AstraZeneca, Cambridge, UK
| | - Jeroen de Bont
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Audrius Dedele
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Joane Ferrand
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Inserm, CNRS, University Grenoble Alpes, Institute of Advanced Biosciences, Joint research center (U1209), La Tronche, Grenoble, France; CHU Grenoble Alpes, CIC Pédiatrique, Grenoble, France
| | | | | | | | - Hector Keun
- Division of Cancer, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, UK
| | | | | | - Inga Petraviciene
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Oliver Robinson
- MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, UK
| | - Pierre-Jean Saulnier
- Clinical Investigation Center CIC1402, Inserm, CHU Poitiers, School of Medicine, University of Poitiers, Poitiers, France
| | - Rémy Slama
- Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, Inserm, CNRS, University Grenoble Alpes, Institute of Advanced Biosciences, Joint research center (U1209), La Tronche, Grenoble, France
| | - Jordi Sunyer
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - José Urquiza
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | | | - John Wright
- Bradford Institute for Health Research, Bradford, UK
| | - Martine Vrijheid
- ISGlobal, Institute for Global Health, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública (CIBERESP), Spain
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Becher R, Wellendorf H, Sakhi AK, Samuelsen JT, Thomsen C, Bølling AK, Kopperud HM. Presence and leaching of bisphenol a (BPA) from dental materials. Acta Biomater Odontol Scand 2018; 4:56-62. [PMID: 29868625 PMCID: PMC5974758 DOI: 10.1080/23337931.2018.1476869] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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] [Received: 04/27/2018] [Accepted: 05/09/2018] [Indexed: 12/16/2022]
Abstract
BPA has been reported to leach from some resin based dental restorative materials and materials used for orthodontic treatment. To confirm and update previous findings, especially in light of the new temporary lower threshold value for tolerable daily BPA intake, we have investigated the leaching of BPA from 4 composite filling materials, 3 sealants and 2 orthodontic bonding materials. The materials were either uncured and dissolved in methanol or cured. The cured materials were kept in deionized water for 24 hours or 2 weeks. Samples were subsequently analyzed by ultra-performance liquid chromatography coupled to mass spectrometry (UPLC-MS-MS). The composite filling material Tetric EvoFlow® and the fissure sealant DELTON® showed significantly higher levels of BPA leaching compared to control samples for all test conditions (uncured, 24 h leaching and 2 weeks leaching). There were no significant differences in amount of leached BPA for any of the tested materials after 24 hours compared to 2 weeks. These results show that BPA is still released from some dental materials despite the general concern about potential adverse effects of BPA. However, the amounts of BPA were relatively low and most likely represent a very small contribution to the total BPA exposure.
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Affiliation(s)
- Rune Becher
- Nordic Institute of Dental Materials (NIOM), Oslo, Norway.,Norwegian Institute of Public Health, Oslo, Norway
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Sakhi AK, Sabaredzovic A, Cequier E, Thomsen C. Phthalate metabolites in Norwegian mothers and children: Levels, diurnal variation and use of personal care products. Sci Total Environ 2017; 599-600:1984-1992. [PMID: 28558421 DOI: 10.1016/j.scitotenv.2017.05.109] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [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: 03/02/2017] [Revised: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 06/07/2023]
Abstract
Exposure to phthalates has been associated with reproductive and developmental toxicity. Data on levels of these compounds in the Norwegian population is limited. In this study, urine samples were collected from 48 mothers and their children in two counties in Norway. Eleven different phthalate metabolites originating from six commonly used phthalates in consumer products were determined. Concentrations of phthalate metabolites were significantly higher in children compared to mothers except for mono-ethyl phthalate (MEP). The mothers provided several urine samples during 24hours (h) and diurnal variation showed that the concentrations in the morning urine samples (24-8h) were significantly higher than at other time-periods for most of the phthalate metabolites. Intraclass correlation coefficients (ICCs) for 24-hour time-period were in the range of 0.49-0.81. These moderate to high ICCs indicate that one spot urine sample can be used to estimate the exposure to phthalates. Since a significant effect of time of day was observed, it is still advisable to standardize the collection time point to reduce the variation. For the mothers, the use of personal care products (PCPs) were less associated with morning urine samples than early day (8-12h) and evening (16-24h) urine samples. The use of perfume and hair products were positively associated with the urinary concentrations of low molecular weight phthalates. Use of shower soap and shampoo were positively associated with urinary concentration of di(2-ethylhexyl) phthalate (DEHP) metabolites. For children, face cream use was positively associated with phthalate metabolites in the morning samples, and hand soap use was negatively associated with concentration of urinary DEHP metabolites in afternoon/evening samples. Since different PCPs were associated with the urinary phthalate metabolites in different time-periods during a day, more than one spot urine sample might be required to study associations between urinary phthalate metabolites and the use of PCPs.
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Affiliation(s)
- Amrit Kaur Sakhi
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway.
| | - Azemira Sabaredzovic
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Enrique Cequier
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Cathrine Thomsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
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Cequier E, Sakhi AK, Haug LS, Thomsen C. Exposure to organophosphorus pesticides in Norwegian mothers and their children: Diurnal variability in concentrations of their biomarkers and associations with food consumption. Sci Total Environ 2017; 590-591:655-662. [PMID: 28284640 DOI: 10.1016/j.scitotenv.2017.03.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 01/25/2017] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 06/06/2023]
Abstract
Several studies have suggested that exposure to organophosphorus (OP) pesticides is detrimental for health, and in particular for children where moderate doses may have a negative impact on the neurodevelopment. This study surveys levels of the 6 non-specific urinary metabolites (dialkyl phosphates (DAPs)) of OP pesticides in Norwegian mothers (n=48) and their children (n=54), and examines the diurnal variation in concentrations as well as associations with consumption of specific food products. The highest median concentration measured in urine was found for dimethyl thiophosphate (5.3 and 5.5ng/mLSG; specific gravity corrected) for both children and mothers, respectively, followed by diethyl phosphate (3.8 and 5.3ng/mLSG, respectively). The intra-class correlation coefficients of DAPs among mothers were moderate (0.49-0.68), and consumption of fruit explained between 8% and 55% of the variations in the mothers' and their children's urinary DAP concentrations.
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Affiliation(s)
- Enrique Cequier
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway.
| | - Amrit Kaur Sakhi
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Line Småstuen Haug
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Cathrine Thomsen
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
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Cequier E, Sakhi AK, Haug LS, Thomsen C. Development of an ion-pair liquid chromatography–high resolution mass spectrometry method for determination of organophosphate pesticide metabolites in large-scale biomonitoring studies. J Chromatogr A 2016; 1454:32-41. [DOI: 10.1016/j.chroma.2016.05.067] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 02/04/2023]
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Strømmen K, Lyche JL, Blakstad EW, Moltu SJ, Veierød MB, Almaas AN, Sakhi AK, Thomsen C, Nakstad B, Brække K, Rønnestad AE, Drevon CA, Iversen PO. Increased levels of phthalates in very low birth weight infants with septicemia and bronchopulmonary dysplasia. Environ Int 2016; 89-90:228-34. [PMID: 26922148 DOI: 10.1016/j.envint.2016.01.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 10/24/2015] [Revised: 01/09/2016] [Accepted: 01/28/2016] [Indexed: 05/15/2023]
Abstract
Very low birth weight infants (VLBW; birth weight<1500g) are exposed to potentially harmful phthalates from medical devices during their hospital stay. We measured urinary phthalate concentrations among hospitalized VLBW infants participating in a nutritional study. Possible associations between different phthalates and birth weight (BW), septicemia and bronchopulmonary dysplasia (BPD) were evaluated. Forty-six VLBW infants were enrolled in this randomized controlled nutritional study. The intervention group (n=24) received increased quantities of energy, protein, fat, essential fatty acids and vitamin A, as compared to the control group (n=22). The concentrations of 12 urinary phthalate metabolites were measured, using high-performance liquid chromatography coupled to tandem mass spectrometry, at 3 time points during the first 5weeks of life. During this study, the levels of di (2-ethylhexyl) phthalate (DEHP) metabolites decreased, whereas an increasing trend was seen regarding metabolites of di-iso-nonyl phthalate (DiNP). Significantly higher levels of phthalate metabolites were seen in infants with lower BW and those diagnosed with late onset septicemia or BPD. A significant positive correlation between the duration of respiratory support and DEHP metabolites was observed (p≤0.01) at 2.9weeks of age. Birth weight was negatively associated with urinary phthalate metabolite concentrations. Infants with lower BW and those diagnosed with septicemia or BPD experienced prolonged exposure from medical equipment containing phthalates, with subsequent higher levels of phthalate metabolites detected. Clinical Trial Registration no.: NCT01103219.
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Affiliation(s)
- Kenneth Strømmen
- Department of Neonatal Intensive Care, Women and Children's Division, Oslo University Hospital, Rikshospitalet, Norway; Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway.
| | - Jan Ludvig Lyche
- Department of Food and Safety and Infection Biology, Norwegian University of Life Science, Oslo, Norway
| | - Elin Wahl Blakstad
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Sissel Jennifer Moltu
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Neonatal Intensive Care, Women and Children's Division, Oslo University Hospital, Ullevål, Norway
| | - Marit Bragelien Veierød
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Oslo Centre of Biostatistics and Epidemiology, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
| | - Astrid Nylander Almaas
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway; Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Amrit Kaur Sakhi
- Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway
| | - Cathrine Thomsen
- Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway
| | - Britt Nakstad
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital and Institute for Clinical Medicine, Campus Ahus, University of Oslo, Nordbyhagen, Norway
| | - Kristin Brække
- Department of Neonatal Intensive Care, Women and Children's Division, Oslo University Hospital, Ullevål, Norway
| | - Arild Erlend Rønnestad
- Department of Neonatal Intensive Care, Women and Children's Division, Oslo University Hospital, Rikshospitalet, Norway
| | - Christian André Drevon
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
| | - Per Ole Iversen
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Norway
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Sabaredzovic A, Sakhi AK, Brantsæter AL, Thomsen C. Determination of 12 urinary phthalate metabolites in Norwegian pregnant women by core-shell high performance liquid chromatography with on-line solid-phase extraction, column switching and tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1002:343-52. [PMID: 26355271 DOI: 10.1016/j.jchromb.2015.08.040] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [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: 04/13/2015] [Revised: 08/25/2015] [Accepted: 08/27/2015] [Indexed: 11/16/2022]
Abstract
Phthalates (dialkyl or alkyl phenyl esters of phthalic acid, benzene-1.2-dicarboxylic acid) are a group of industrial chemicals that have been used for more than 50 years. Phthalates are ubiquitous and can potentially have adverse effects on humans. The present study presents an accurate, sensitive and automated analytical method for measuring 12 phthalate metabolites (free and conjugated) in human urine using on-line solid phase extraction coupled to high performance liquid chromatography - electrospray ionization - tandem mass spectrometry. A small volume of urine sample (300μL) is required. Glucoronidated phthalate metabolites are deconjugated by incubation with glucoronidase enzyme (Escherihia coli-K 12) and the reaction is stopped by adding formic acid. This is the only sample preparation needed prior to injection into the column switching system. Thus, the method involves minimal sample handling and minimizes possible contaminations from the surroundings. The method was validated by spiking synthetic urine at 5-8 levels in the range of 0.1-500ng phthalate metabolites/mL synthetic urine. The method is sensitive with limits of detection in the low nanogram range, and rapid with a total run time about 25min. The accuracy was between 90 and 120 % and the intermediate precision was given as relative standard deviation was below 20% for most of the compounds. The high sensitivity, high throughput and minimal manual handling make the method suitable for large-scale biomonitoring studies. The present method was applied for the determination of phthalate metabolites in urine samples from 116 pregnant women, a subproject within the Norwegian Mother and Child Cohort Study. Concentrations of all the twelve phthalate metabolites was >LOQ in 100% of the samples analysed. Mean urinary concentrations for different phthalate metabolites ranged from 1 to 100ng/mL, the highest concentrations were observed for di-2-ethylhexyl phthalate (DEHP) metabolites and lowest for di-iso-nonyl phthalate (DiNP) metabolites. The urinary concentrations for most of the phthalate metabolites in the present study were found to be in the same range as found in other studies of pregnant women.
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Affiliation(s)
- Azemira Sabaredzovic
- Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway.
| | - Amrit Kaur Sakhi
- Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Anne Lise Brantsæter
- Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Cathrine Thomsen
- Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
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Ellingjord-Dale M, dos-Santos-Silva I, Grotmol T, Kaur Sakhi A, Hofvind S, Qureshi S, Skov Markussen M, Couto E, Vos L, Ursin G. Vitamin D intake, month the mammogram was taken and mammographic density in Norwegian women aged 50-69. PLoS One 2015; 10:e0123754. [PMID: 25938768 PMCID: PMC4418832 DOI: 10.1371/journal.pone.0123754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 03/06/2015] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The role of vitamin D in breast cancer etiology is unclear. There is some, but inconsistent, evidence that vitamin D is associated with both breast cancer risk and mammographic density (MD). We evaluated the associations of MD with month the mammogram was taken, and with vitamin D intake, in a population of women from Norway--a country with limited sunlight exposure for a large part of the year. METHODS 3114 women aged 50-69, who participated in the Norwegian Breast Cancer Screening Program (NBCSP) in 2004 or 2006/07, completed risk factor and food frequency (FFQ) questionnaires. Dietary and total (dietary plus supplements) vitamin D, calcium and energy intakes were estimated by the FFQ. Month when the mammogram was taken was recorded on the mammogram. Percent MD was assessed using a computer assisted method (Madena, University of Southern California) after digitization of the films. Linear regression models were used to investigate percent MD associations with month the mammogram was taken, and vitamin D and calcium intakes, adjusting for age, body mass index (BMI), study year, estrogen and progestin therapy (EPT), education, parity, calcium intakes and energy intakes. RESULTS There was no statistical significant association between the month the mammogram was taken and percent MD. Overall, there was no association between percent MD and quartiles of total or dietary vitamin D intakes, or of calcium intake. However, analysis restricted to women aged <55 years revealed a suggestive inverse association between total vitamin D intake and percent MD (p for trend = 0.03). CONCLUSION Overall, we found no strong evidence that month the mammogram was taken was associated with percent MD. We found no inverse association between vitamin D intake and percent MD overall, but observed a suggestive inverse association between dietary vitamin D and MD for women less than 55 years old.
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Affiliation(s)
| | - Isabel dos-Santos-Silva
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | | | | | - Samera Qureshi
- Norwegian Centre for Minority Health Research, Oslo, Norway
| | | | - Elisabeth Couto
- Norwegian Knowledge Centre for the Health Services, Health Economic and Drug Unit, Oslo, Norway
| | - Linda Vos
- Cancer Registry of Norway, Oslo, Norway
| | - Giske Ursin
- University of OsloOslo, Norway
- Cancer Registry of Norway, Oslo, Norway
- University of Southern California, Los Angeles, United States of America
- * E-mail:
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Høie AH, Monien BH, Sakhi AK, Glatt H, Hjertholm H, Husøy T. Formation of DNA adducts in wild-type and transgenic mice expressing human sulfotransferases 1A1 and 1A2 after oral exposure to furfuryl alcohol. Mutagenesis 2015; 30:643-9. [PMID: 25904584 PMCID: PMC4540787 DOI: 10.1093/mutage/gev023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Furfuryl alcohol (FFA) is present in many heat-treated foods as a result of its formation via dehydration of pentoses. It is also used legally as a flavouring agent. In an inhalation study conducted in the National Toxicology Program, FFA showed some evidence of carcinogenic activity in rats and mice. FFA was generally negative in conventional genotoxicity assays, which suggests that it may be a non-genotoxic carcinogen. However, it was recently found that FFA is mutagenic in Salmonella strains expressing appropriate sulfotransferases (SULTs), such as human or mouse SULT1A1. The same DNA adducts that were formed by FFA in these strains, mainly N (2)-((furan-2-yl)methyl)-2'-deoxyguanosine (N (2)-MF-dG), were also detected in tissues of FFA-exposed mice and even in human lung specimens. In the present study, a single oral dose of FFA (250 mg/kg body weight) or saline was administered to FVB/N mice and transgenic mice expressing human SULT1A1/1A2 on the FVB/N background. The transgenic mice were used, since human and mouse SULT1A1 substantially differ in substrate specificity and tissue distribution. DNA adducts were studied in liver, kidney, proximal and distal small intestine as well as colon, using isotope-dilution ultra performance liquid chromatography (UPLC-MS/MS). Surprisingly, low levels of adducts that may represent N (2)-MF-dG were detected even in tissues of untreated mice. FFA exposure enhanced the adduct levels in colon and liver, but not in the remaining investigated tissues of wild-type (wt) mice. The situation was similar in transgenic mice, except that N (2)-MF-dG levels were also strongly enhanced in the proximal small intestine. These different results between wt and transgenic mice may be attributed to the fact that human SULT1A1, but not the orthologous mouse enzyme, is strongly expressed in the small intestine.
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Affiliation(s)
- Anja Hortemo Høie
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, 0456 Oslo, Norway, Research Group Genotoxic Food Contaminants, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, 14558 Nuthetal, Germany, Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway, Department of Nutritional Toxicology, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, Nuthetal, Germany Present address: Department of Food Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany.
| | - Bernhard Hans Monien
- Research Group Genotoxic Food Contaminants, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, 14558 Nuthetal, Germany, Present address: Department of Food Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany
| | - Amrit Kaur Sakhi
- Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway
| | - Hansruedi Glatt
- Department of Nutritional Toxicology, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, Nuthetal, Germany
| | - Hege Hjertholm
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, 0456 Oslo, Norway, Research Group Genotoxic Food Contaminants, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, 14558 Nuthetal, Germany, Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway, Department of Nutritional Toxicology, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, Nuthetal, Germany Present address: Department of Food Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany
| | - Trine Husøy
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, 0456 Oslo, Norway, Research Group Genotoxic Food Contaminants, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, 14558 Nuthetal, Germany, Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway, Department of Nutritional Toxicology, German Institute of Human Nutrition (DIfE) Potsdam-Rehbrücke, Nuthetal, Germany Present address: Department of Food Safety, German Federal Institute for Risk Assessment (BfR), 10589 Berlin, Germany
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Sakhi AK, Bastani NE, Ellingjord-Dale M, Gundersen TE, Blomhoff R, Ursin G. Feasibility of self-sampled dried blood spot and saliva samples sent by mail in a population-based study. BMC Cancer 2015; 15:265. [PMID: 25886002 PMCID: PMC4428002 DOI: 10.1186/s12885-015-1275-0] [Citation(s) in RCA: 40] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 03/26/2015] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND In large epidemiological studies it is often challenging to obtain biological samples. Self-sampling by study participants using dried blood spots (DBS) technique has been suggested to overcome this challenge. DBS is a type of biosampling where blood samples are obtained by a finger-prick lancet, blotted and dried on filter paper. However, the feasibility and efficacy of collecting DBS samples from study participants in large-scale epidemiological studies is not known. The aim of the present study was to test the feasibility and response rate of collecting self-sampled DBS and saliva samples in a population-based study of women above 50 years of age. METHODS We determined response proportions, number of phone calls to the study center with questions about sampling, and quality of the DBS. We recruited women through a study conducted within the Norwegian Breast Cancer Screening Program. Invitations, instructions and materials were sent to 4,597 women. The data collection took place over a 3 month period in the spring of 2009. RESULTS Response proportions for the collection of DBS and saliva samples were 71.0% (3,263) and 70.9% (3,258), respectively. We received 312 phone calls (7% of the 4,597 women) with questions regarding sampling. Of the 3,263 individuals that returned DBS cards, 3,038 (93.1%) had been packaged and shipped according to instructions. A total of 3,032 DBS samples were sufficient for at least one biomarker analysis (i.e. 92.9% of DBS samples received by the laboratory). 2,418 (74.1%) of the DBS cards received by the laboratory were filled with blood according to the instructions (i.e. 10 completely filled spots with up to 7 punches per spot for up to 70 separate analyses). To assess the quality of the samples, we selected and measured two biomarkers (carotenoids and vitamin D). The biomarker levels were consistent with previous reports. CONCLUSION Collecting self-sampled DBS and saliva samples through the postal services provides a low cost, effective and feasible alternative in epidemiological studies.
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Affiliation(s)
- Amrit Kaur Sakhi
- Norwegian Institute of Public Health, 0456, Oslo, Norway.
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0316, Oslo, Norway.
| | - Nasser Ezzatkhah Bastani
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0316, Oslo, Norway.
| | - Merete Ellingjord-Dale
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0316, Oslo, Norway.
| | | | - Rune Blomhoff
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0316, Oslo, Norway.
- Department of Clinical Service, Division of Cancer Medicine, Surgery and Transplantation, Oslo University Hospital, 0424, Oslo, Norway.
| | - Giske Ursin
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0316, Oslo, Norway.
- Cancer Registry of Norway, P.O. Box 5313, 0304, Oslo, Norway.
- Department of Preventive Medicine, University of Southern California, 90032-3628, Los Angeles, CA, USA.
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Cequier E, Sakhi AK, Marcé RM, Becher G, Thomsen C. Human exposure pathways to organophosphate triesters - a biomonitoring study of mother-child pairs. Environ Int 2015; 75:159-65. [PMID: 25461425 DOI: 10.1016/j.envint.2014.11.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [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: 05/15/2014] [Revised: 10/15/2014] [Accepted: 11/12/2014] [Indexed: 05/22/2023]
Abstract
The worldwide ban of several formulations of brominated flame retardants has caused an increase in the production of organophosphorus flame retardants (PFRs) to meet the existing fire regulations for a wide range of household products. This biomonitoring study surveys the occurrence of the metabolites from PFRs and related plasticizers (dialkyl and diaryl phosphates; DAPs) in urine from a Norwegian mother-child cohort (48 mothers and 54 children). Concentrations of DAPs were higher in the children than in their mothers (Wilcoxon signed-rank test p=0.001). Median urinary concentrations of diphenyl phosphate (DPHP) were 1.1 and 0.51ng/mL in children and mothers, respectively, followed by bis(1,3-dichloro-2-propyl) phosphate (BDCIPP) with medians of 0.23 and 0.12ng/mL, respectively. Detection frequencies for bis(2-butoxyethyl) phosphate (BBOEP) in urine from children and mothers were 32 and 1%, respectively (median<0.18ng/mL), and for di-n-butyl phosphate (DNBP) 15 and 8%, respectively (median<0.12ng/mL). The concentrations of DPHP and BDCIPP in urine from children were significantly correlated with those found for their parent compounds in air and dust from the households (Spearman's rank correlations 0.30<Rs<0.36; p<0.05). For mothers, only the urinary concentration of BDCIPP was correlated to its precursor in dust from the households (Rs=0.40; p<0.01), which might indicate higher impact of the household environment on children than mothers. A diurnal variability study of the mothers' urinary concentrations of DPHP and BDCIPP showed lower concentrations at time periods when women were likely to be outside the household. In contrast, no relevant associations between organophosphate metabolites in urine and food consumption data obtained through a 24hour recall were seen. This suggests that the residential environment is a more important exposure pathway to PFRs than the diet.
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Affiliation(s)
- Enrique Cequier
- Department of Exposure and Risk Assessment, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway; Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain.
| | - Amrit Kaur Sakhi
- Department of Exposure and Risk Assessment, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Rosa Maria Marcé
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Georg Becher
- Department of Exposure and Risk Assessment, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway; Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Cathrine Thomsen
- Department of Exposure and Risk Assessment, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
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Kocbach Bølling A, Holme JA, Bornehag CG, Nygaard UC, Bertelsen RJ, Nånberg E, Bodin J, Sakhi AK, Thomsen C, Becher R. Pulmonary phthalate exposure and asthma - is PPAR a plausible mechanistic link? EXCLI J 2013; 12:733-59. [PMID: 26622216 PMCID: PMC4662182] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 08/05/2013] [Indexed: 11/01/2022]
Abstract
Due to their extensive use as plasticisers in numerous consumer products, phthalates have become ubiquitous environmental contaminants. An increasing number of epidemiological studies suggest that exposure to phthalates may be associated with worsening or development of airway diseases. Peroxisome Proliferation Activated Receptors (PPAR)s, identified as important targets for phthalates in early studies in rodent liver, have been suggested as a possible mechanistic link. In this review we discuss the likelihood of an involvement of PPARs in asthma development and exacerbation due to pulmonary phthalate exposure. First, we go through the literature on indoor air levels of phthalates and pulmonary phthalate kinetics. These data are then used to estimate the pulmonary phthalate levels due to inhalation exposure. Secondly, the literature on phthalate-induced activation or modulation of PPARs is summarized. Based on these data, we discuss whether pulmonary phthalate exposure is likely to cause PPAR activation, and if this is a plausible mechanism for adverse effects of phthalates in the lung. It is concluded that the pulmonary concentrations of some phthalates may be sufficient to cause a direct activation of PPARs. Since PPARs mainly mediate anti-inflammatory effects in the lungs, a direct activation is not a likely molecular mechanism for adverse effects of phthalates. However, possible modulatory effects of phthalates on PPARs deserve further investigation, including partial antagonist effects and/or cross talk with other signalling pathways. Moreover other mechanisms, including interactions between phthalates and other receptors, could also contribute to possible adverse pulmonary effects of phthalates.
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Affiliation(s)
- Anette Kocbach Bølling
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway,*To whom correspondence should be addressed: Anette Kocbach Bølling, Division of Environmental Medicine, Norwegian Institute of Public Health, Geitemyrsveien 75, 0462 Oslo, Norway, Phone: +47 21077000, Fax: +47 21076686, E-mail: ;
| | - Jørn A Holme
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | | | - Unni C Nygaard
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | - Randi J Bertelsen
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | - Eewa Nånberg
- University of Karlstad, 651-88, Karlstad, Sweden
| | - Johanna Bodin
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | - Amrit Kaur Sakhi
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | - Cathrine Thomsen
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
| | - Rune Becher
- Division of Environmental Medicine, Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403 Oslo, Norway
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Sakhi AK, Bøhn SK, Smeland S, Thoresen M, Smedshaug GB, Tausjø J, Svilaas A, Karlsen A, Russnes KM, Svilaas T, Blomhoff R. Postradiotherapy plasma lutein, alpha-carotene, and beta-carotene are positively associated with survival in patients with head and neck squamous cell carcinoma. Nutr Cancer 2010; 62:322-8. [PMID: 20358469 DOI: 10.1080/01635580903441188] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The aim of our study was to compare plasma carotenoids (i.e., biomarkers of fruits and vegetables intake) and tocopherols in 29 head and neck squamous cell carcinoma (HNSCC) patients with 51 healthy controls and to explore the possibility whether these plasma antioxidants could be related to outcome among patients. The patients' blood samples were taken at the end of radiotherapy. We observed that plasma lutein, zeaxanthin, alpha-carotene, beta-carotene, lycopene, and total carotenoids were significantly lower in HNSCC patients than controls. Among the patients, 18 died and 11 were still alive during median follow-up of 55 mo for survivors. We found a significant positive association between postradiotherapy plasma carotenoids (lutein, alpha-carotene, and beta-carotene) and progression-free survival in these patients. This study indicates that increasing postradiotherapy plasma carotenoid concentration may reduce risk of premature death or recurrence of tumor in HNSCC patients. Increasing plasma carotenoid concentration should be done by increasing intake of carotenoid-rich fruits and vegetables, as other studies have shown either no or negative effects due to use of carotenoid supplements.
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Affiliation(s)
- Amrit Kaur Sakhi
- Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
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Bøhn SK, Smeland S, Sakhi AK, Thoresen M, Russnes KM, Tausjø J, Svilaas A, Svilaas T, Blomhoff R. Post-radiotherapy plasma total glutathione is associated to outcome in patients with head and neck squamous cell carcinoma. Cancer Lett 2005; 238:240-7. [PMID: 16157445 DOI: 10.1016/j.canlet.2005.07.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Revised: 07/08/2005] [Accepted: 07/10/2005] [Indexed: 01/23/2023]
Abstract
We have studied the role of systemic oxidative stress for survival of patients with head and neck squamous cell carcinomas (HNSCC). Patients with lowest plasma total GSH levels had the lowest 36 months survival. In patients with post-radiotherapy concentrations of plasma total GSH less than median value, about 73% died during the 36 months follow-up compared to about 21% of patients with GSH values above median. Systemic oxidative stress as assessed by low GSH in post-radiotherapy plasma is associated to outcome in HNSCC patients.
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Affiliation(s)
- Siv Kjølsrud Bøhn
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, P.O. Box 1046, Blindern N-0316, Oslo, Norway
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Svilaas A, Sakhi AK, Andersen LF, Svilaas T, Ström EC, Jacobs DR, Ose L, Blomhoff R. Intakes of antioxidants in coffee, wine, and vegetables are correlated with plasma carotenoids in humans. J Nutr 2004; 134:562-7. [PMID: 14988447 DOI: 10.1093/jn/134.3.562] [Citation(s) in RCA: 211] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The consumption of fruits and vegetables reduces the risk of major chronic degenerative diseases. The active compounds and the mechanisms involved in this protective effect have not been well defined. The objective of this study was to determine the contribution of various food groups to total antioxidant intake, and to assess the correlations of the total antioxidant intake from various food groups with plasma antioxidants. We collected 7-d weighed dietary records in a group of 61 adults with corresponding plasma samples, and used data from a nationwide survey of 2672 Norwegian adults based on an extensive FFQ. The total intake of antioxidants was approximately 17 mmol/d with beta-carotene, alpha-tocopherol, and vitamin C contributing <10%. The intake of coffee contributed approximately 11.1 mmol, followed by fruits (1.8 mmol), tea (1.4 mmol), wine (0.8 mmol), cereals (i.e., all grain containing foods; 0.8 mmol), and vegetables (0.4 mmol). The intake of total antioxidants was significantly correlated with plasma lutein, zeaxanthin, and lycopene. Among individual food groups, coffee, wine, and vegetables were significantly correlated with dietary zeaxanthin, beta-carotene, and alpha-carotene. These data agree with the hypothesis that dietary antioxidants other than the well-known antioxidants contribute to our antioxidant defense. Surprisingly, the single greatest contributor to the total antioxidant intake was coffee.
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Affiliation(s)
- Arne Svilaas
- Lipid Clinic, Medical Department, Rikshospitalet, University of Oslo, Oslo, Norway
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Ulven SM, Gundersen TE, Sakhi AK, Glover JC, Blomhoff R. Quantitative axial profiles of retinoic acid in the embryonic mouse spinal cord: 9-cis retinoic acid only detected after all-trans-retinoic acid levels are super-elevated experimentally. Dev Dyn 2001; 222:341-53. [PMID: 11747070 DOI: 10.1002/dvdy.1184] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Studies using bioassays in normal mice and gene activation in transgenic reporter mice have demonstrated peaks of retinoic acid receptor (RAR) signaling in the brachial and lumbar regions of the spinal cord. Recently, Solomin et al. (Solomin et al. [1998] Nature 395:398-402) detected a retinoid X receptor (RXR) signal in the same region of the developing spinal cord at a slightly later stage than the RAR signal. This finding raises the question of which retinoid ligands underlie RAR and RXR signaling in this part of the embryo. Quantitative measurements of regional differences in retinoid profiles have not been reported previously due to limitation in the sensitivity and specificity of available retinoid detection methods. Here, by using a recently developed ultrasensitive HPLC technique (Sakhi et al. [1998] J. Chromatogr. A 828:451-460), we address this question in an attempt to identify definitively the endogenous retinoids present in different regions of the spinal cord at the stages when regional differences in RAR and RXR signaling have been reported. We find a bimodal distribution of all-trans retinoic acid (at-RA), the ligand for RARs, and relate this to the expression of several retinoid-synthesizing enzymes. However, we do not detect 9-cis-retinoic acid (9-cis-RA), the putative RXR ligand, in any region of the spinal cord unless retinoid levels are massively increased experimentally by gavage feeding pregnant mice with teratogenic doses of at-RA. This study provides for the first time quantitative profiles of endogenous retinoids along the axis of the developing spinal cord, thereby establishing a foundation for more definitive studies of retinoid function in the future. It sets definite limits on how much 9-cis-RA potentially is present and demonstrates that at-RA predominates over 9-cis-RA by at least 30- to 180-fold in different spinal cord regions.
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Affiliation(s)
- S M Ulven
- Institute for Nutrition Research, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway
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Ulven SM, Gundersen TE, Weedon MS, Landaas VO, Sakhi AK, Fromm SH, Geronimo BA, Moskaug JO, Blomhoff R. Identification of endogenous retinoids, enzymes, binding proteins, and receptors during early postimplantation development in mouse: important role of retinal dehydrogenase type 2 in synthesis of all-trans-retinoic acid. Dev Biol 2000; 220:379-91. [PMID: 10753524 DOI: 10.1006/dbio.2000.9634] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Specific combinations of nuclear retinoid receptors acting as ligand-inducible transcription factors mediate the essential role of retinoids in embryonic development. Whereas some data exist on the expression of these receptors during early postimplantation development in mouse, little is known about the enzymes controlling the production of active ligands for the retinoid receptors. Furthermore, at early stages of mouse development virtually no data are available on the presence of endogenous retinoids. In the present study we have used a recently developed high-performance liquid chromatographic (HPLC) technique to identify endogenous retinoids in mouse embryos down to the egg cylinder stage. All-trans-retinoic acid, a ligand for the retinoic acid receptors, was detected in embryos dissected as early as 7.5 dpc (i.e., a combination of midstreak until late allantoic bud stage embryos). At these stages, we detected mRNA coding for all the retinoid receptors, retinoid binding proteins, and two enzymes able to convert retinol to retinal (retinol dehydrogenase 5 (RDH5) and alcohol dehydrogenase 4 (ADH4)). We also detected retinal dehydrogenase type 2 (RALDH2), an enzyme capable of oxidising the final step in the all-trans-retinoic acid synthesis. In egg cylinder stage mouse embryos no all-trans-retinoic acid was detected. However, at this stage its precursor all-trans-retinal was present. In accordance with these HPLC observations, RDH5 and ADH4 were expressed, but no transcripts coding for enzymes that oxidise retinal to retinoic acid. Therefore, our results suggest that RALDH2 is a key regulator in initiating retinoic acid synthesis sometime between the mid-primitive streak stage and the late allantoic bud stage in mouse embryos.
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Affiliation(s)
- S M Ulven
- Institute for Nutrition Research, University of Oslo, Blindern, Oslo, 0316, Norway
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Sakhi AK, Gundersen TE, Ulven SM, Blomhoff R, Lundanes E. Quantitative determination of endogenous retinoids in mouse embryos by high-performance liquid chromatography with on-line solid-phase extraction, column switching and electrochemical detection. J Chromatogr A 1998; 828:451-60. [PMID: 9916324 DOI: 10.1016/s0021-9673(98)00676-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An isocratic high-performance liquid chromatographic method for the determination of 9-cis-retinoic acid, 13-cis-retinoic acid, all-trans-retinoic acid and all-trans-retinol in mouse embryos using on-line solid-phase extraction and column switching in combination with electrochemical detection has been developed. The method was validated using retinoids in albumin solutions and 13-cis-acitretin was used as internal standard. About 370 microliters of albumin solution was injected on a 10 x 2.1-mm I.D. pre-column packed with Bondapak C18, 37-53-micron particles. The proteins were washed to waste within 5 min using as mobile phase, a 1:3 dilution of mobile phase 2, which consisted of acetonitrile-methanol-2% ammonium acetate-glacial acetic acid (79:2:16:3, v/v). Components retained on the pre-column were back-flushed to and separated on the 250 x 4.6-mm I.D. Suplex pKb-100 analytical column using mobile phase 2. The retinoids were detected electrochemically at +750 mV using a coulometric electrochemical detector. The total analysis time was about 20 min. Recoveries were in the range of 86-103%. The mass limits of detection were about 10 pg and 25 pg for the retinoic acids and all-trans-retinol, respectively. The intra-assay precision, reported as relative standard deviation, was in general better than 4% (n = 6) for the four retinoids. Inter-assay precision was in the range 3-4% (n = 10). The method was applied for determination of endogenous retinoids in 9.5 day-old mouse embryos. A 340-microliter solution containing 100 microliters of embryo homogenate (1.64 embryos) was analyzed. The concentrations of all-trans-retinol and all-trans-retinoic acid were found to be 279 pg per embryo and 75.8 pg per embryo, respectively. The amount of 13-cis-retinoic acid and 9-cis-retinoic acid was below the detection limit.
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Affiliation(s)
- A K Sakhi
- Department of Chemistry, University of Oslo, Norway
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