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Lacomba I, López A, Hervàs-Ayala R, Coscollà C. Development of a Methodology for Determination of Dioxins and Dioxin-like PCBs in Meconium by Gas Chromatography Coupled to High-Resolution Mass Spectrometry (GC-HRMS). Molecules 2023; 28:5006. [PMID: 37446668 DOI: 10.3390/molecules28135006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/19/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
An analytical strategy was applied to investigate polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), and dioxin-like polychlorinated biphenyls (dl-PCBs) in newborn meconium samples. The methodology includes extraction by selective pressurized liquid extraction (SPLE), followed by a clean-up multicolumn step. The samples were injected by gas chromatography coupled to a high-resolution mass spectrometer (GC-HRMS). The surrogate recoveries ranged from 68% to 95%, and the average of the limit of quantification (LOQ) ranged from 0.03 to 0.08 pg g-1 wet weight (ww) for PCDD/Fs and 0.2 to 0.88 pg g-1 ww for dl-PCBs. The strategy was applied to 10 samples collected in Valencia (Spain) in 2022. In total, 18 out of 29 analysed congeners were detected in at least one sample, whereas 6 of them were detected in all the samples (OCDD, PCB-123, PCB-118, PCB-105, PCB-167, and PCB-156). The levels for the sum of the 17 congeners of PCDD/Fs and 12 congeners of dl-PCBs in the upper-bound (UB), expressed as picograms of toxic equivalency quantity (TEQ) per gram of ww, ranged from 0.19 to 0.31 pg TEQ g-1 ww.
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Affiliation(s)
- Iñaki Lacomba
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
- Department of Analytical Chemistry, Univeristy of Valencia, Doctor Moliner 50, 46100 Burjassot, Spain
| | - Antonio López
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
| | - Raquel Hervàs-Ayala
- Department of Obstetrics and Gynaecology, General University Hospital of Valencia, 46014 Valencia, Spain
| | - Clara Coscollà
- Foundation for the Promotion of Health and Biomedical Research of the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020 Valencia, Spain
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Fernández-Cruz T, Álvarez-Silvares E, Domínguez-Vigo P, Simal-Gándara J, Martínez-Carballo E. Prenatal exposure to organic pollutants in northwestern Spain using non-invasive matrices (placenta and meconium). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 731:138341. [PMID: 32408211 DOI: 10.1016/j.scitotenv.2020.138341] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/28/2020] [Accepted: 03/29/2020] [Indexed: 06/11/2023]
Abstract
Human exposure to environmental organic pollutants (OPs) begins in the uterine life period by trans-placental transfer. Epidemiological studies have consistently demonstrated the vulnerability of human fetuses and infants to the effects of OPs because of their rapid growth and organ development, cell differentiation, and immaturity of metabolism. The aim of the present study was to evaluate the prenatal exposure to OPs characterized by different physicochemical properties using non-invasive biological samples (meconium and placenta). A total of 88 placenta and 53 meconium samples were collected in Ourense, a city located in northwestern Spain, at the delivery and after birth from mothers and their infants from the University Hospital of Ourense, respectively. Selective pressurized liquid extraction (SPLE) methodologies were used to determine the targeted OPs in the selected biological samples. Cleanup of extracts was performed by solid-phase extraction (SPE) using EZ-POP cartridges and detection by gas chromatography (GC) coupled to tandem mass spectrometry (QqQ-MS/MS). The targeted OPs were detected with the following mean level total concentration order polycyclic aromatic hydrocarbons (PAHs) > organophosphorus pesticides (OPPs) > non-dioxin like polychlorinated biphenyls (NDLPCBs) > pyrethroids (PYRs) > polybrominated diphenyl ethers (PBDEs) > dioxin like polychlorinated biphenyls (DLPCBs) > organochlorine pesticides (OCPs) for placenta and ΣNDLPCBs > ΣPAHs > ΣOCPs > ΣPYRs > ΣOPPs > ΣDLPCBs > ΣPBDEs for meconium, respectively. Significant correlations (p < .050) between the socio-demographic characteristics of the selected population (mother's parity, age, weight increase during pregnancy, place of living and smoking habits) and log transformed concentration of some of the targeted OPs (OCPs, PBDEs, PYRs, OPPs and PAHs) were detected. The results obtained shown the complementary information given by both biological samples selected. Nevertheless, additional research will be needed to gain an understanding of the trans-placental transfer of OPs, to choose the best biological matrix to evaluate the prenatal exposure to OPs in a correct way and to know their health implications.
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Affiliation(s)
- Tania Fernández-Cruz
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Agri-Food Research and Transfer Cluster (CITACA), Campus da Auga, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain
| | - Esther Álvarez-Silvares
- Obstetrics and Gynecology Department, Complexo Hospitalario Universitario de Ourense, 32005, Spain.
| | - Paula Domínguez-Vigo
- Obstetrics and Gynecology Department, Complexo Hospitalario Universitario de Ourense, 32005, Spain
| | - Jesús Simal-Gándara
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Agri-Food Research and Transfer Cluster (CITACA), Campus da Auga, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain
| | - Elena Martínez-Carballo
- Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Agri-Food Research and Transfer Cluster (CITACA), Campus da Auga, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain.
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Meconium analysis as a promising diagnostic tool for monitoring fetal exposure to toxic substances: Recent trends and perspectives. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.09.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Weihe P, Bjerregaard P, Bonefeld-Jørgensen E, Dudarev A, Halling J, Hansen S, Muckle G, Nøst T, Odland JØ, Petersen MS, Rautio A, Veyhe AS, Wennberg M, Bergdahl I. Overview of ongoing cohort and dietary studies in the Arctic. Int J Circumpolar Health 2016; 75:33803. [PMID: 27974135 PMCID: PMC5156866 DOI: 10.3402/ijch.v75.33803] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This article gives an overview of the ongoing cohort and dietary studies underlying the assessment of population health in the Arctic. The emphasis here is on a description of the material, methods and results or preliminary results for each study. Detailed exposure information is available in an article in this journal, whereas another paper describes the effects associated with contaminant exposure in the Arctic. The cohort descriptions have been arranged geographically, beginning in Norway and moving east to Finland, Sweden, Russia and the other Arctic countries and ultimately to the Faroe Islands. No cohort studies have been reported for Alaska or Iceland.
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Affiliation(s)
- Pál Weihe
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Torshavn, Faroe Islands;
| | - Peter Bjerregaard
- National Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Eva Bonefeld-Jørgensen
- Centre for Arctic Health, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Alexey Dudarev
- Northwest Public Health Research Center, St. Petersburg, Russia
| | - Jónrit Halling
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Torshavn, Faroe Islands
| | - Solrunn Hansen
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Gina Muckle
- École de Psychologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, Canada
| | - Therese Nøst
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Jon Øyvind Odland
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Maria Skaalum Petersen
- Department of Occupational Medicine and Public Health, The Faroese Hospital System, Torshavn, Faroe Islands
| | - Arja Rautio
- Thule Institute, University of Oulu, Oulu, Finland
| | - Anna Sofía Veyhe
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Maria Wennberg
- Department of Biobank Research, Umeå University, Umeå, Sweden
| | - Ingvar Bergdahl
- Department of Biobank Research, Umeå University, Umeå, Sweden
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Abstract
Industrial and consumer product chemicals are widely used, leading to ubiquitous human exposure to the most common classes. Because these chemicals may affect developmental milestones, exposures in pregnant women and developing fetuses are of particular interest. In this review, we discuss the prevalence of chemical exposures in pregnant women, the chemical class-specific relationships between maternal and fetal exposures, and the major sources of exposures for six chemical classes of concern: phthalates, phenols, perfluorinated compounds (PFCs), flame retardants, polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCs). Additionally, we describe the current efforts to characterize cumulative exposures to synthetic chemicals during pregnancy. We conclude by highlighting gaps in the literature and discussing possible applications of the findings to reduce the prevalence of cumulative exposures during pregnancy.
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Jeong Y, Lee S, Kim S, Choi SD, Park J, Kim HJ, Lee JJ, Choi G, Choi S, Kim S, Kim SY, Kim YD, Cho G, Suh E, Kim SK, Eun SH, Eom S, Kim S, Kim GH, Kim S, Choi K, Moon HB. Occurrence and prenatal exposure to persistent organic pollutants using meconium in Korea: Feasibility of meconium as a non-invasive human matrix. ENVIRONMENTAL RESEARCH 2016; 147:8-15. [PMID: 26828623 DOI: 10.1016/j.envres.2016.01.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/19/2016] [Accepted: 01/22/2016] [Indexed: 06/05/2023]
Abstract
Prenatal exposure to persistent organic pollutants (POPs) is of great concern due to the vulnerability of fetus. Nineteen Polychlorinated biphenyls (PCBs), 18 organochlorine pesticides (OCPs) including DDTs, HCHs, chlordanes, and hexachlorobenzene, and 22 polybrominated diphenyl ethers (PBDEs) were measured in meconium samples from 72 newborn infants using high resolution gas chromatography/mass spectrometry. The median concentrations (on wet weight basis) of PCBs, OCPs, and PBDEs were 26.8pg/g, 66.7pg/g, and 2.32pg/g, respectively. Highly significant correlations were observed among the compounds of PCBs and OCPs, suggesting their similar sources and kinetic behaviors. BDE 47 had significant correlations with PCBs and OCPs, whereas BDE 209 was not correlated with any of the contaminants due to different exposure sources. The concentrations of p,p'-DDE, β-HCH, and trans-nonaCHL between paired maternal blood-meconium and cord blood-meconium showed significant correlations, while PCBs and PBDEs were not significantly correlated in the paired samples. Maternal age and gestational age were demographic parameters affecting POP levels in meconium. Multiple regression analysis showed that the levels of several OCPs in cord and maternal serum were contributing factors governing the levels of these contaminants in meconium. Our results indicate that meconium can be utilized as a human matrix for prenatal exposure to several OCPs.
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Affiliation(s)
- Yunsun Jeong
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea
| | - Sunggyu Lee
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea
| | - Sunmi Kim
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Sung-Deuk Choi
- School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Jeongim Park
- College of Natural Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Hai-Joong Kim
- College of Medicine, Korea University, Seoul, Republic of Korea
| | - Jeong Jae Lee
- College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Gyuyeon Choi
- College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Sooran Choi
- College of Medicine, Inha University, Incheon, Republic of korea
| | - Sungjoo Kim
- College of Medicine, Hallym University, Seoul, Republic of Korea
| | - Su Young Kim
- College of Medicine, Jeju National University, Jeju, Republic of Korea
| | - Young Don Kim
- College of Medicine, Jeju National University, Jeju, Republic of Korea
| | - Geumjoon Cho
- College of Medicine, Korea University, Seoul, Republic of Korea
| | - Eunsook Suh
- College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Sung Koo Kim
- College of Medicine, Inha University, Incheon, Republic of korea
| | - So-Hee Eun
- College of Medicine, Korea University, Seoul, Republic of Korea
| | - Soyong Eom
- College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Seunghyo Kim
- College of Medicine, Hallym University, Seoul, Republic of Korea
| | - Gun-Ha Kim
- College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sungkyoon Kim
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Kyungho Choi
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea.
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Veyhe AS, Hofoss D, Hansen S, Thomassen Y, Sandanger TM, Odland JØ, Nieboer E. The Northern Norway Mother-and-Child Contaminant Cohort (MISA) Study: PCA analyses of environmental contaminants in maternal sera and dietary intake in early pregnancy. Int J Hyg Environ Health 2014; 218:254-64. [PMID: 25556042 DOI: 10.1016/j.ijheh.2014.12.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/17/2014] [Accepted: 12/01/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although predictors of contaminants in serum or whole blood are usually examined by chemical groups (e.g., POPs, toxic and/or essential elements; dietary sources), principal component analysis (PCA) permits consideration of both individual substances and combined variables. OBJECTIVES Our study had two primary objectives: (i) Characterize the sources and predictors of a suite of eight PCBs, four organochlorine (OC) pesticides, five essential and five toxic elements in serum and/or whole blood of pregnant women recruited as part of the Mother-and-Child Contaminant Cohort Study conducted in Northern Norway (The MISA study); and (ii) determine the influence of personal and social characteristics on both dietary and contaminant factors. METHODS Recruitment and sampling started in May 2007 and continued for the next 31 months until December 2009. Blood/serum samples were collected during the 2nd trimester (mean: 18.2 weeks, range 9.0-36.0). A validated questionnaire was administered to obtain personal information. The samples were analysed by established laboratories employing verified methods and reference standards. PCA involved Varimax rotation, and significant predictors (p≤0.05) in linear regression models were included in the multivariable linear regression analysis. RESULTS When considering all the contaminants, three prominent PCA axes stood out with prominent loadings of: all POPs; arsenic, selenium and mercury; and cadmium and lead. Respectively, in the multivariate models the following were predictors: maternal age, parity and consumption of freshwater fish and land-based wild animals; marine fish; cigarette smoking, dietary PCA axes reflecting consumption of grains and cereals, and food items involving hunting. PCA of only the POPs separated them into two axes that, in terms of recently published findings, could be understood to reflect longitudinal trends and their relative contributions to summed POPs. CONCLUSIONS The linear combinations of variables generated by PCA identified prominent dietary sources of OC groups and of prominent toxic elements and highlighted the importance of maternal characteristics.
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Affiliation(s)
- Anna Sofía Veyhe
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway.
| | - Dag Hofoss
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway; Institute of Health and Society, University of Oslo, Norway
| | - Solrunn Hansen
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway
| | | | - Torkjel M Sandanger
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway; Norwegian Institute for Air Research (NILU), Fram Centre, Tromsø, Norway
| | - Jon Øyvind Odland
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway
| | - Evert Nieboer
- Department of Community Medicine, Faculty of Health Science, The Arctic University of Norway, Norway; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
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