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Đokić M, Nekić T, Varenina I, Varga I, Solomun Kolanović B, Sedak M, Čalopek B, Vratarić D, Bilandžić N. Pesticides and Polychlorinated Biphenyls in Milk and Dairy Products in Croatia: A Health Risk Assessment. Foods 2024; 13:1155. [PMID: 38672828 PMCID: PMC11049040 DOI: 10.3390/foods13081155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this study was to evaluate contamination levels and the frequency of detection of organochlorine (OCPs) and organophosphate pesticides (OPPs), pyrethroids, carbamates and polychlorinated biphenyls (seven PCB congeners) in a total of 534 samples of cow's, sheep's and goat's milk and dairy products from Croatia. Concentrations above the limit of quantification (LOQ) were measured for fourteen OCPs, nine OPPs, six pyrethroids, one carbamate and PCBs with a total of 172 results, and no concentrations exceeded the maximal residue levels defined by the European Union. The mean concentrations of pesticides and the sum of seven PCBs were determined in the ranges 0.92-17.4 μg/kg and 1.38-2.74 μg/kg. Pesticides were quantified in 27% of samples, and seven PCBs were quantified in 5.23% of samples. Among the three pesticide groups, the highest numbers of quantified results were found for OCPs (12.1-20.8%). The highest frequencies of detection were found for the sum of 4,4'-dichlorodiphenyltrichloroethane and its isomers (DDTs), hexachlorobenzene and seven PCBs. The sum of seven PCBs was quantified within the range of 3.3-6.67% of samples per milk type and dairy products. Among the OPPs, the highest frequency of detection was found for chlorpyrifos in cow's milk. Based on the estimated daily intakes, chronic risk characterisation showed no risk for adults or ten-year-old children for the consumption of cow's milk and dairy products.
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Affiliation(s)
- Maja Đokić
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Tamara Nekić
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Ivana Varenina
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Ines Varga
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Božica Solomun Kolanović
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Marija Sedak
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Bruno Čalopek
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
| | - Darija Vratarić
- Veterinary and Food Safety Directorate, Ministry of Agriculture of Republic of Croatia, Planinska 2a, 10000 Zagreb, Croatia;
| | - Nina Bilandžić
- Laboratory for Residue Control, Department of Veterinary Public Health, Croatian Veterinary Institute, Savska cesta 143, 10000 Zagreb, Croatia; (M.Đ.); (T.N.); (I.V.); (I.V.); (B.S.K.); (M.S.); (B.Č.)
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Duffel MW, Lehmler HJ. Complex roles for sulfation in the toxicities of polychlorinated biphenyls. Crit Rev Toxicol 2024; 54:92-122. [PMID: 38363552 PMCID: PMC11067068 DOI: 10.1080/10408444.2024.2311270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic toxicants derived from legacy pollution sources and their formation as inadvertent byproducts of some current manufacturing processes. Metabolism of PCBs is often a critical component in their toxicity, and relevant metabolic pathways usually include their initial oxidation to form hydroxylated polychlorinated biphenyls (OH-PCBs). Subsequent sulfation of OH-PCBs was originally thought to be primarily a means of detoxication; however, there is strong evidence that it may also contribute to toxicities associated with PCBs and OH-PCBs. These contributions include either the direct interaction of PCB sulfates with receptors or their serving as a localized precursor for OH-PCBs. The formation of PCB sulfates is catalyzed by cytosolic sulfotransferases, and, when transported into the serum, these metabolites may be retained, taken up by other tissues, and subjected to hydrolysis catalyzed by intracellular sulfatase(s) to regenerate OH-PCBs. Dynamic cycling between PCB sulfates and OH-PCBs may lead to further metabolic activation of the resulting OH-PCBs. Ultimate toxic endpoints of such processes may include endocrine disruption, neurotoxicities, and many others that are associated with exposures to PCBs and OH-PCBs. This review highlights the current understanding of the complex roles that PCB sulfates can have in the toxicities of PCBs and OH-PCBs and research on the varied mechanisms that control these roles.
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Affiliation(s)
- Michael W. Duffel
- Department of Pharmaceutical Sciences & Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa, 52242, United States
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, Iowa, 52242, United States
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Ostadgholami M, Zeeb M, Amirahmadi M, Daraei B. Multivariate Optimization and Validation of a Modified QuEChERS Method for Determination of PAHs and PCBs in Grilled Meat by GC-MS. Foods 2023; 13:143. [PMID: 38201171 PMCID: PMC10779142 DOI: 10.3390/foods13010143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 06/25/2023] [Accepted: 07/03/2023] [Indexed: 01/12/2024] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) are recognized as carcinogens and mutagenic food contaminants that threaten public health. As for food safety aspects, control of these contaminants in processed and fatty food is necessary. In this study, eleven factors were screened by the Plackett-Burman design, and four variables were chosen to optimize with the central composite design (CCD) for the improvement of extraction and cleanup procedures of these food contaminants. The optimized variables include 5 g of sample, 2 mL mixture of 2/2/1 ethyl acetate/acetone/isooctane, 1.6 g of ammonium formate, 0.9 g of sodium chloride, and 0.25 g of sorbent Z-Sep+. A 5 min cleanup vortex time with the spike calibration curve strategy, analyzed by gas chromatography-mass spectrometry (GC-MS), led to the validated limits of quantification (LOQs) for 16 PAHs and 36 PCBs of 0.5-2 and 0.5-1 ng/g, respectively, and recoveries of 72-120%, with an average relative standard deviation (%RSD) of 17, for PAHs, and 80-120%, with an %RSD of 3, for PCBs. The method introduces excellent accuracy, precision, and efficiency, and minimizes matrix effects, and ensures a control procedure, adopted with international standards, for food authorities to determine the contaminants of interest in processed meat, and consequently, prevent food-borne disease to improve public health indices.
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Affiliation(s)
- Mahsa Ostadgholami
- Department of Applied Chemistry, Faculty of Science, South Tehran Branch, Islamic Azad University, Tehran 1777613651, Iran; (M.O.); (M.Z.)
| | - Mohsen Zeeb
- Department of Applied Chemistry, Faculty of Science, South Tehran Branch, Islamic Azad University, Tehran 1777613651, Iran; (M.O.); (M.Z.)
| | - Maryam Amirahmadi
- Food and Drug Reference Control Laboratory (FDRCL), Iran Food and Drug Administration (IFDA), Ministry of Health and Medical Education, Tehran 1113615911, Iran
- Food and Drug Laboratory Research Center (FDLRC), Iran Food and Drug Administration (IFDA), Ministry of Health and Medical Education, Tehran 1113615911, Iran
| | - Bahram Daraei
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran 1996835113, Iran
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Idowu IG, Megson D, Tiktak G, Dereviankin M, Sandau CD. Polychlorinated biphenyl (PCB) half-lives in humans: A systematic review. CHEMOSPHERE 2023; 345:140359. [PMID: 37832892 DOI: 10.1016/j.chemosphere.2023.140359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/01/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
This manuscript presents a systematic review of PCB half-lives reported in the scientific literature. The review was completed in accordance with PRISMA guidelines and included a review of almost 1000 peer-reviewed publications. In total, 26 articles were found to report half-lives in humans, with the majority of data coming from studies performed in North America on individuals suspected to have been exposed to PCBs. Terminology for reporting PCB half-lives was inconsistent, so we have attempted to consolidate this and recommend using either "apparent half-life" or "intrinsic half-life" in future studies. Within the literature, values for reported half-lives varied considerably for different PCBs. Less chlorinated PCBs generally have shorter half-lives than more chlorinated PCBs. It was interesting to note the large variability of half-lives reported for the same PCB. For example, the reported half-life for PCB 180 varied by nearly 3 orders of magnitude (0.34 years-300 years). Our review identified that the half-lives estimated were largely dependent on the studied cohort. We discuss the importance of PCB body burden, degree of chlorination and PCB structure, gender, age, breastfeeding, BMI, and smoking status on half-life estimations. We also identified significantly shorter half-lives for some PCBs in occupationally exposed individuals compared to results reported from the general population. PCB half-lives are not the same for every PCB or every individual. Therefore, careful consideration is needed when these values are used in human exposure studies.
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Affiliation(s)
| | - David Megson
- Chemistry Matters Inc, Calgary, Canada; Manchester Metropolitan University, Department of Natural Science, Ecology and Environment Research Centre, Manchester, M1 5GD, UK
| | - Guuske Tiktak
- Manchester Metropolitan University, Department of Natural Science, Ecology and Environment Research Centre, Manchester, M1 5GD, UK
| | | | - Courtney D Sandau
- Chemistry Matters Inc, Calgary, Canada; Mount Royal University, Department of Earth and Environmental Sciences, Calgary, Canada.
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Deen L, Clark A, Hougaard KS, Petersen KU, Frederiksen M, Wise LA, Wesselink AK, Meyer HW, Bonde JP, Tøttenborg SS. Exposure to airborne polychlorinated biphenyls and type 2 diabetes in a Danish cohort. ENVIRONMENTAL RESEARCH 2023; 237:117000. [PMID: 37634693 DOI: 10.1016/j.envres.2023.117000] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 04/17/2023] [Accepted: 08/25/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Previous research indicates an association between higher-chlorinated polychlorinated biphenyls (PCBs) and type 2 diabetes (T2D). However, less is known about the extent to which PCB exposure in indoor air, composed primarily of lower-chlorinated PCBs, affects T2D risk. We assessed the association between indoor air exposure to PCBs in residential buildings and T2D incidence. METHODS The register-based 'Health Effects of PCBs in Indoor Air' (HESPAIR) cohort comprises 51,921 Danish residents of two residential areas with apartments built with and without PCB-containing materials (reference apartments). We assessed exposure status by combining register-based information on relocation history with extrapolated values of exposure based on PCB-measurements in indoor air from subsets of the apartments. T2D cases were identified in the Danish registers during 1977-2018. We estimated adjusted hazard ratios (HR) and 95% confidence intervals (CI) using Cox regression analyses with time-varying exposure. RESULTS We identified 2737 incident T2D cases during the follow-up. Exposure to ≥3300 ng/m3 PCB × year (3rd tertile of PCByear) was associated with higher risk of T2D (HR 1.15, 95% CI 1.02-1.30) compared with exposure to <300 ng/m3 PCB × year (reference). However, among individuals with lower cumulated PCByear, the risk was similar to residents with exposure <300 ng/m3 PCB × year (300-899 ng/m3 PCB × year: HR 0.98, 95% CI 0.87-1.11; 900-3299 ng/m3 PCB × year: HR 0.96, 95% CI 0.83-1.10). DISCUSSION We observed a marginally higher risk of T2D, but there was no evidence of an exposure-response relationship. The results should be interpreted with caution until confirmed in other independent studies of PCB exposure in indoor air.
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Affiliation(s)
- Laura Deen
- Department of Occupational and Environmental Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospital, Denmark; Department of Public Health, The Faculty of Health Sciences, University of Copenhagen, Denmark.
| | | | - Karin Sørig Hougaard
- Department of Public Health, The Faculty of Health Sciences, University of Copenhagen, Denmark; National Research Centre for the Working Environment, Denmark
| | - Kajsa Ugelvig Petersen
- Department of Occupational and Environmental Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospital, Denmark
| | | | - Lauren A Wise
- Department of Epidemiology, School of Public Health, Boston University, United States
| | - Amelia K Wesselink
- Department of Epidemiology, School of Public Health, Boston University, United States
| | - Harald William Meyer
- Department of Occupational and Environmental Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospital, Denmark
| | - Jens Peter Bonde
- Department of Occupational and Environmental Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospital, Denmark; Department of Public Health, The Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Sandra Søgaard Tøttenborg
- Department of Occupational and Environmental Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg Hospital, Denmark; Department of Public Health, The Faculty of Health Sciences, University of Copenhagen, Denmark
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Sasaki N, Morse G, Jones L, Carpenter DO. Effects of mixtures of polychlorinated biphenyls (PCBs) and three organochlorine pesticides on cognitive function differ between older Mohawks at Akwesasne and older adults in NHANES. ENVIRONMENTAL RESEARCH 2023; 236:116861. [PMID: 37562737 DOI: 10.1016/j.envres.2023.116861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/14/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Akwesasne Mohawks has been exposed to high concentrations of polychlorinated biphenyls (PCBs) and background levels of organochlorine pesticides, hexachlorobenzene (HCB), dichlorodiphenyl dichloroethylene (DDE), and mirex. We have previously reported relative contributions to the mixture of low- and high-chlorinated PCBs, HCB, and DDE on cognitive decrements in Mohawks of various ages. OBJECTIVE This study examines differences in the mixture effects of PCB congener groups, HCB, DDE, and mirex on cognitive function in older Mohawks and less PCB-exposed older adults from the National Health and Nutrition Examination Survey (NHANES) 1999-2002 cycles. METHODS We used Bayesian kernel machine regression (BKMR) to evaluate the mixture effects of different PCB congener groups, HCB, DDE, and mirex on cognitive function in both populations. Models were adjusted for age, sex, education levels, and race/ethnicity focusing on individuals 60 years and older. RESULTS Older Mohawks had 3-fold higher mean total PCB concentrations and 1.8-fold higher mirex, but slightly lower mean DDE and HCB levels than NHANES older adults. Higher mixture concentrations were significantly associated with greater cognitive decline. In older Mohawks, low- and high-chlorinated PCBs, HCB, and DDE contributed to the cognitive score decline. In contrast, score decline in older NHANES adults were primarily from high-chlorinated PCBs and DDE with a threshold dose of approximately 2.08-2.27 ng/g and 2.02-2.40 ng/g, respectively. CONCLUSION Mixtures of PCBs and organochlorine pesticides increase the risk of cognitive decline in both older Mohawks and NHANES older adults. However, contributions to these mixture effects show significant differences. In older Mohawks, high- and low-chlorinated PCBs, DDE, and HCB are the primary contributors, while high-chlorinated PCBs and DDE are important contributors in NHANES older adults. Due to chronic heavy exposures to PCBs, older Mohawks had a significantly increased risk of cognitive decline compared to general older adults from NHANES.
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Affiliation(s)
- Nozomi Sasaki
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA.
| | - Gayle Morse
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA; Department of Psychology, School of Health Sciences, Russell Sage College, Troy, NY, 12180, USA
| | - Laura Jones
- Center for Biostatistics, Bassett Research Institute, Bassett Health, Cooperstown, NY, 13326, USA; Epidemiology and Biostatistics, SUNY Albany School of Public Health, Rensselaer, NY 12144, USA
| | - David O Carpenter
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA
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Sasaki N, Jones LE, Morse GS, Carpenter DO. Mixture Effects of Polychlorinated Biphenyls (PCBs) and Three Organochlorine Pesticides on Cognitive Function in Mohawk Adults at Akwesasne. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1148. [PMID: 36673903 PMCID: PMC9859591 DOI: 10.3390/ijerph20021148] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 05/22/2023]
Abstract
The Mohawks at Akwesasne have been highly exposed to polychlorinated biphenyls (PCBs), via releases from three aluminum foundries located near the reserve. They are also exposed to organochlorine pesticides, namely hexachlorobenzene (HCB), dichlorodiphenyldichloroethylene (DDE), and mirex. Previous studies have demonstrated reduced cognition in relation to total PCBs, but the effects of the mixtures of different PCB congener groups, HCB, DDE, and mirex on cognitive function have not been studied. Therefore, cognitive performance for executive function, scored via the digit symbol substitution test (DSST), in Mohawk adults aged 17-79 years (n = 301), was assessed in relation to serum concentrations of low-chlorinated PCBs, high-chlorinated PCBs, total PCBs, HCB, DDE, and mirex. We used mixture models employing the quantile-based g-computation method. The mixture effects of low-chlorinated PCBs, high-chlorinated PCBs, HCB, DDE, and mirex were significantly associated with 4.01 DSST scores decrements in the oldest age group, 47-79 years old. There were important contributions to mixture effects from low-chlorinated PCBs, high-chlorinated PCBs, and total PCBs, with smaller contributions of HCB and DDE. Our findings indicate that exposures to both low- and high-chlorinated PCBs increase the risk of cognitive decline in older adults, while DDE and HCB have less effect.
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Affiliation(s)
- Nozomi Sasaki
- Institute for Health and the Environment, University at Albany, Rensselaer, NY 12144, USA
| | - Laura E. Jones
- Institute for Health and the Environment, University at Albany, Rensselaer, NY 12144, USA
- Department of Biostatistics and Epidemiology, School of Public Health, University at Albany, Rensselaer, NY 12144, USA
| | - Gayle S. Morse
- Institute for Health and the Environment, University at Albany, Rensselaer, NY 12144, USA
- Department of Psychology, School of Health Sciences, Russell Sage College, Troy, NY 12180, USA
| | - David O. Carpenter
- Institute for Health and the Environment, University at Albany, Rensselaer, NY 12144, USA
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Bako C, Martinez A, Ewald JM, Hua JBX, Ramotowski DJ, Dong Q, Schnoor JL, Mattes TE. Aerobic Bioaugmentation to Decrease Polychlorinated Biphenyl (PCB) Emissions from Contaminated Sediments to Air. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:14338-14349. [PMID: 36178372 PMCID: PMC9583607 DOI: 10.1021/acs.est.2c01043] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
We conducted experiments to determine whether bioaugmentation with aerobic, polychlorinated biphenyl (PCB)-degrading microorganisms can mitigate polychlorinated biphenyl (PCB) emissions from contaminated sediment to air. Paraburkholderia xenovorans strain LB400 was added to bioreactors containing PCB-contaminated site sediment. PCB mass in both the headspace and aqueous bioreactor compartments was measured using passive samplers over 35 days. Time-series measurements of all 209 PCB congeners revealed a 57% decrease in total PCB mass accumulated in the vapor phase of bioaugmented treatments relative to non-bioaugmented controls, on average. A comparative congener-specific analysis revealed preferential biodegradation of lower-chlorinated PCBs (LC-PCBs) by LB400. Release of the most abundant congener (PCB 4 [2,2'-dichlorobiphenyl]) decreased by over 90%. Simulations with a PCB reactive transport model closely aligned with experimental observations. We also evaluated the effect of the phytogenic biosurfactant, saponin, on PCB bioavailability and biodegradation by LB400. Time-series qPCR measurements of biphenyl dioxygenase (bphA) genes showed that saponin better maintained bphA abundance, compared to the saponin-free treatment. These findings indicate that an active population of bioaugmented, aerobic PCB-degrading microorganisms can effectively lower PCB emissions and may therefore contribute to minimizing PCB inhalation exposure in communities surrounding PCB-contaminated sites.
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Affiliation(s)
- Christian
M. Bako
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Andres Martinez
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Jessica M. Ewald
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Jason B. X. Hua
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - David J. Ramotowski
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Qin Dong
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Jerald L. Schnoor
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
| | - Timothy E. Mattes
- The
Department of Civil & Environmental Engineering, 4105 Seamans
Center for the Engineering Arts & Sciences, University of Iowa, Iowa City, Iowa 52245, United States
- IIHR—Hydroscience
& Engineering, University of Iowa, Iowa City, Iowa 52242, United States
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Assaggaf H, Yoo C, Lucchini RG, Black SM, Hamed M, Minshawi F, Felty Q. Polychlorinated Biphenyls and Pulmonary Hypertension. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:4705. [PMID: 35457576 PMCID: PMC9029704 DOI: 10.3390/ijerph19084705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 12/10/2022]
Abstract
Polychlorinated biphenyls (PCBs) are persistent environmental pollutants that were banned because of their potential carcinogenicity. Population studies have shown that PCBs are associated with lung toxicity and hypertension. The objective of this study was to evaluate whether higher exposure to PCB congeners is associated with the risk of pulmonary hypertension. Serum levels of PCBs in 284 subjects with combined risk factors for pulmonary arterial hypertension (PAH) were compared to 4210 subjects with no risk for PAH using the National Health and Nutrition Examination Survey (NHANES) from 1999 to 2004. The major findings from this study include significantly higher PCB levels in PAH subjects compared to non-PAH subjects; for example, the geometric mean (GM) of PCB74 was 15.91 (ng/g) (14.45-17.53) vs. 11.48 (ng/g) (10.84-12.16), respectively. Serum levels of PCB congeners showed an increasing trend in the age group 20-59 years as PCB180 GM was 19.45 (ng/g) in PAH vs. 12.75 (ng/g) in the control. A higher body burden of PCB153 followed by PCB138, PCB180, and PCB118 was observed. Estimated age, race, BMI, and gender-adjusted ORs for PCB congener levels in subjects with the combined risk factors for PAH compared to controls was significant; for example, PCB99 (OR: 1.5 (CI: 1.49-1.50). In summary, these findings indicate that exposure, as well as body burden estimated based on lipid adjustment of PCBs, were higher in people with risk factors for PAH, and PCB congeners accumulated with age. These findings should be interpreted with caution because of the use of cross-sectional self-reported data and a small sample size of subjects with combined risk factors for pulmonary arterial hypertension. Nonetheless, our finding emphasizes a need for a comprehensive environmental molecular epidemiologic study to determine the potential role of environmental exposures to PCBs in the development of pulmonary arterial hypertension.
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Affiliation(s)
- Hamza Assaggaf
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (H.A.); (F.M.)
| | - Changwon Yoo
- Department of Biostatistics, Florida International University, Miami, FL 33199, USA;
| | - Roberto G. Lucchini
- Department of Environmental Health Sciences, Florida International University, Miami, FL 33199, USA;
- Department of Medical Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, 25123 Brescia, Italy
| | - Steven M. Black
- FIU-Center for Translational Science, Port St. Lucie, FL 34987, USA;
| | - Munerah Hamed
- Department of Pathology, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Faisal Minshawi
- Department of Laboratory Medicine, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia; (H.A.); (F.M.)
| | - Quentin Felty
- Department of Environmental Health Sciences, Florida International University, Miami, FL 33199, USA;
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Casey A, Bush B, Carpenter DO. PCBs in indoor air and human blood in Pittsfield, Massachusetts. CHEMOSPHERE 2022; 293:133551. [PMID: 35033515 DOI: 10.1016/j.chemosphere.2022.133551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Concentrations of polychlorinated biphenyls (PCBs) and three chlorinated pesticides were determined in serum from 21 residents of Pittsfield, MA and in the basement, living room and outdoor air of the 10 homes in which they lived. Median serum PCB levels were 4.2 ng/g, which are at least four times the average level in the US population, and consisted primarily of more highly chlorinated, persistent congeners. This reflects contamination with PCBs coming from the local General Electric facility. Median basement air concentration was 20.3 ng/m3, while the median living room air was 11.4 ng/m3 and median outdoor air concentration was 3.0 ng/m3. The PCB congeners detected in air were primarily low chlorinated (four and fewer) congeners, reflecting the greater volatility of PCBs with fewer chlorines. The congener pattern between basement and living room air showed a 95% correlation, while correlation with outdoor air was much less. While the congener pattern in air is very different from that of the PCB products used in Pittsfield (Aroclors 1254 and 1260), low chlorinated PCBs are detected in the vapor phase after air is blown across the commercial mixtures. The human serum samples did not show detectible levels of many of the congeners seen in the basement air samples, reflecting rapid metabolism of lower chlorinated PCBs by the human body. However, with continuous inhalation of indoor air, especially in the living room, the exposure to these non-persistent congeners may still have adverse health effects. Cellular studies of some of these non-persistent, low chlorinated congeners indicate that they are neurotoxic, mutagenic and cytotoxic. These results demonstrate the importance of consideration of inhalation of PCBs as a route of exposure, especially in indoor sites, and suggest that monitoring serum PCB concentration may not always provide a good measurement of exposure, especially to congeners that are relatively rapidly metabolized but have significant toxicity.
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Affiliation(s)
- Ann Casey
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA
| | - Brian Bush
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA
| | - David O Carpenter
- Institute for Health and the Environment, University at Albany, Rensselaer, NY, 12144, USA.
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Perez C, Felty Q. Molecular basis of the association between transcription regulators nuclear respiratory factor 1 and inhibitor of DNA binding protein 3 and the development of microvascular lesions. Microvasc Res 2022; 141:104337. [PMID: 35143811 PMCID: PMC8923910 DOI: 10.1016/j.mvr.2022.104337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 11/25/2022]
Abstract
The prognosis of patients with microvascular lesions remains poor because vascular remodeling eventually obliterates the lumen. Here we have focused our efforts on vessel dysfunction in two different organs, the lung and brain. Despite tremendous progress in understanding the importance of blood vessel integrity, gaps remain in our knowledge of the underlying molecular factors contributing to vessel injury, including microvascular lesions. Most of the ongoing research on these lesions have focused on oxidative stress but have not found major molecular targets for the discovery of new treatment or early diagnosis. Herein, we have focused on elucidating the molecular mechanism(s) based on two new emerging molecules NRF1 and ID3, and how they may contribute to microvascular lesions in the lung and brain. Redox sensitive transcriptional activation of target genes depends on not only NRF1, but the recruitment of co-activators such as ID3 to the target gene promoter. Our review highlights the fact that targeting NRF1 and ID3 could be a promising therapeutic approach as they are major players in influencing cell growth, cell repair, senescence, and apoptotic cell death which contribute to vascular lesions. Knowledge about the molecular biology of these processes will be relevant for future therapeutic approaches to not only PAH but cerebral angiopathy and other vascular disorders. Therapies targeting transcription regulators NRF1 or ID3 have the potential for vascular disease-modification because they will address the root causes such as genomic instability and epigenetic changes in vascular lesions. We hope that our findings will serve as a stimulus for further research towards an effective treatment of microvascular lesions.
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Affiliation(s)
- Christian Perez
- Department of Environmental Health Sciences, Florida International University, Miami, FL, USA
| | - Quentin Felty
- Department of Environmental Health Sciences, Florida International University, Miami, FL, USA.
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Hasan GMMA, Shaikh MAA, Satter MA, Hossain MS. Detection of indicator polychlorinated biphenyls (I-PCBs) and polycyclic aromatic hydrocarbons (PAHs) in cow milk from selected areas of Dhaka, Bangladesh and potential human health risks assessment. Toxicol Rep 2022; 9:1514-1522. [DOI: 10.1016/j.toxrep.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/06/2022] [Accepted: 07/09/2022] [Indexed: 12/01/2022] Open
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14
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Kofoed AB, Deen L, Hougaard KS, Petersen KU, Meyer HW, Pedersen EB, Ebbehøj NE, Heitmann BL, Bonde JP, Tøttenborg SS. Maternal exposure to airborne polychlorinated biphenyls (PCBs) and risk of adverse birth outcomes. Eur J Epidemiol 2021; 36:861-872. [PMID: 34420151 PMCID: PMC8416822 DOI: 10.1007/s10654-021-00793-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 07/21/2021] [Indexed: 02/06/2023]
Abstract
Human health effects of airborne lower-chlorinated polychlorinated biphenyls (LC-PCBs) are largely unexplored. Since PCBs may cross the placenta, maternal exposure could potentially have negative consequences for fetal development. We aimed to determine if exposure to airborne PCB during pregnancy was associated with adverse birth outcomes. In this cohort study, exposed women had lived in PCB contaminated apartments at least one year during the 3.6 years before conception or the entire first trimester of pregnancy. The women and their children were followed for birth outcomes in Danish health registers. Logistic regression was performed to estimate odds ratios (OR) for changes in secondary sex ratio, preterm birth, major congenital malformations, cryptorchidism, and being born small for gestational age. We performed linear regression to estimate difference in birth weight among children of exposed and unexposed mothers. All models were adjusted for maternal age, educational level, ethnicity, and calendar time. We identified 885 exposed pregnancies and 3327 unexposed pregnancies. Relative to unexposed women, exposed women had OR 0.97 (95% CI 0.82, 1.15) for secondary sex ratio, OR 1.13 (95% CI 0.76, 1.67) for preterm birth, OR 1.28 (95% CI 0.81, 2.01) for having a child with major malformations, OR 1.73 (95% CI 1.01, 2.95) for cryptorchidism and OR 1.23 (95% CI 0.88, 1.72) for giving birth to a child born small for gestational age. The difference in birth weight for children of exposed compared to unexposed women was − 32 g (95% CI—79, 14). We observed an increased risk of cryptorchidism among boys after maternal airborne LC-PCB exposure, but due to the proxy measure of exposure, inability to perform dose–response analyses, and the lack of comparable literature, larger cohort studies with direct measures of exposure are needed to investigate the safety of airborne LC-PCB exposure during pregnancy
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Affiliation(s)
- Ane Bungum Kofoed
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark.
| | - Laura Deen
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Karin Sørig Hougaard
- National Research Centre for the Working Environment, Copenhagen, Denmark.,Department of Public Health, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Kajsa Ugelvig Petersen
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Harald William Meyer
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Ellen Bøtker Pedersen
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Niels Erik Ebbehøj
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Berit Lilienthal Heitmann
- Research Unit for Dietary Studies, The Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark.,Section for General Practice, Department of Public Health, Faculty of Health, University of Copenhagen, Copenhagen, Denmark
| | - Jens Peter Bonde
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark
| | - Sandra Søgaard Tøttenborg
- Department of Occupational and Environmental Medicine, Bispebjerg and Frederiksberg Hospital, Bispebjerg Bakke 23, Building 20F, 2400, Copenhagen, Denmark.
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Lebbie TS, Moyebi OD, Asante KA, Fobil J, Brune-Drisse MN, Suk WA, Sly PD, Gorman J, Carpenter DO. E-Waste in Africa: A Serious Threat to the Health of Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:8488. [PMID: 34444234 PMCID: PMC8392572 DOI: 10.3390/ijerph18168488] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 12/22/2022]
Abstract
Waste electronic and electrical equipment (e-waste) consists of used and discarded electrical and electronic items ranging from refrigerators to cell phones and printed circuit boards. It is frequently moved from developed countries to developing countries where it is dismantled for valuable metals in informal settings, resulting in significant human exposure to toxic substances. E-waste is a major concern in Africa, with large sites in Ghana and Nigeria where imported e-waste is dismantled under unsafe conditions. However, as in many developing countries, used electronic and electrical devices are imported in large quantities because they are in great demand and are less expensive than new ones. Many of these used products are irreparable and are discarded with other solid waste to local landfills. These items are then often scavenged for the purpose of extracting valuable metals by heating and burning, incubating in acids and other methods. These activities pose significant health risks to workers and residents in communities near recycling sites. E-waste burning and dismantling activities are frequently undertaken at e-waste sites, often in or near homes. As a result, children and people living in the surrounding areas are exposed, even if they are not directly involved in the recycling. While toxic substances are dangerous to individuals at any age, children are more vulnerable as they are going through important developmental processes, and some adverse health impacts may have long-term impacts. We review the e-waste situation in Africa with a focus on threats to children's health.
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Affiliation(s)
- Tamba S. Lebbie
- Department of Environmental Health Sciences, School of Public Health, University at Albany, Rensselaer, NY 12144, USA; (T.S.L.); (O.D.M.)
| | - Omosehin D. Moyebi
- Department of Environmental Health Sciences, School of Public Health, University at Albany, Rensselaer, NY 12144, USA; (T.S.L.); (O.D.M.)
| | | | - Julius Fobil
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, Accra, Ghana;
| | - Marie Noel Brune-Drisse
- Department of Environment, Climate Change and Health, World Organization, 1211 Geneva, Switzerland;
| | - William A. Suk
- A World Health Organization Collaborating Center on Children’s Environmental Health, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA;
| | - Peter D. Sly
- A World Health Organization Collaborating Center for Children’s Health and the Environment, Child Health Research Center, The University of Queensland, South Brisbane 4101, Australia;
| | - Julia Gorman
- Graduate School of Humanities and Social Sciences, University of Melbourne, Melbourne 3010, Australia;
| | - David O. Carpenter
- Department of Environmental Health Sciences, School of Public Health, University at Albany, Rensselaer, NY 12144, USA; (T.S.L.); (O.D.M.)
- A World Health Organization Collaborating Center on Environmental Health, Institute for Health and the Environment, University at Albany, Rensselaer, NY 12144, USA
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Nikolaivits E, Siaperas R, Agrafiotis A, Ouazzani J, Magoulas A, Gioti Α, Topakas E. Functional and transcriptomic investigation of laccase activity in the presence of PCB29 identifies two novel enzymes and the multicopper oxidase repertoire of a marine-derived fungus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 775:145818. [PMID: 33631558 DOI: 10.1016/j.scitotenv.2021.145818] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
Polychlorinated biphenyls (PCBs) are persistent organic pollutants (POPs), that can be detected in a variety of environments including the human body, adversely affecting global health. Bioremediation is an emerging field for the detoxification and removal of environmental pollutants, with novel biocatalysts appropriate for this task being in high demand. In this study, a biobank of novel fungal strains isolated as symbionts of marine invertebrates was screened for their ability to remove 2,4,5-trichlorobiphenyl (PCB29). The most efficient strains were studied further for their ability to express laccase activity, the most commonly associated extracellular activity involved in the removal of aromatic pollutants and encoded in fungi by the enzymatic class of multicopper oxidases (MCOs). The strain expressing the highest laccase activity, Cladosporium sp. TM138-S3, was cultivated in the presence of copper ions in a 12 L bioreactor and two enzymes exhibiting laccase activity were isolated from the culture broth through ion-exchange chromatography. The two enzymes, Lac1 and Lac2, were biochemically characterized and showed similar characteristics, although an improved ability to remove PCB29 (up to 71.2%) was observed for Lac2 in the presence of mediators. In parallel, we performed RNAseq of the strain growing in presence and absence of PCB29 and reconstructed its transcriptome assembly. Functional annotation allowed identifying the MCO repertoire of the fungus, consisting of 13 enzymes. Phylogenetic analysis of Ascomycete MCOs further allowed classifying these enzymes, revealing the diversity of laccase activities in Cladosporium sp. TM138-S3.
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Affiliation(s)
- Efstratios Nikolaivits
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Romanos Siaperas
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Andreas Agrafiotis
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Jamal Ouazzani
- Institut de Chimie des Substances Naturelles, ICSN, CNRS, Gif sur Yvette, France
| | - Antonios Magoulas
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece
| | - Αnastasia Gioti
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, Heraklion, Greece
| | - Evangelos Topakas
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece.
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17
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Onozuka D, Nakamura Y, Tsuji G, Furue M. Cancer- and noncancer-specific cumulative incidence of death after exposure to polychlorinated biphenyls and dioxins: A competing risk analysis among Yusho patients. ENVIRONMENT INTERNATIONAL 2021; 147:106320. [PMID: 33321390 DOI: 10.1016/j.envint.2020.106320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/15/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND In competing risks settings, the cause-specific cumulative incidence function is of great interest since it quantifies cumulative risk in the presence of other causes. To date, however, long-term cancer- and noncancer-specific mortality in Yusho patients exposed to polychlorinated biphenyls (PCBs) and dioxin-related compounds has not been estimated. METHODS We identified vital status and cause of death for Yusho patients between 1968 and 2017. Risk of cancer- and noncancer-specific mortality was estimated using a flexible hazards-based regression model, with accounting for competing events. RESULTS In total, 1664 Yusho patients with 63,566 person-years of follow-up were included in the analysis. 50-year cumulative incidence of cancer mortality was 12.4% (95% confidence interval [CI], 10.5-14.7) in males and 4.7% (95% CI, 3.5-6.4) in females (difference, 7.7 percentage points [95% CI, 5.2-10.2]; adjusted hazard ratio for males, 2.61 [95% CI, 1.93-3.52]). For noncancer, the 50-year cumulative incidence of mortality was 35.4% (95% CI, 32.8-38.3) in males and 35.6% (95% CI, 33.3-38.1) in females (difference, -0.2 percentage points [95% CI, -3.5 to 3.1]; adjusted hazard ratio for males, 1.51 [95% CI, 1.26-1.82]). CONCLUSIONS These findings confirm that male Yusho patients have a significantly higher risk of cumulative incidence of cancer-specific mortality than female Yusho patients. Our findings might be useful in providing Yusho patients with more accurate information on cancer prognosis and survivorship and help determine more appropriate disease management.
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Affiliation(s)
- Daisuke Onozuka
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan; Department of Health Care Administration and Management, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Yuko Nakamura
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan
| | - Gaku Tsuji
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan; Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masutaka Furue
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan; Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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18
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Onozuka D, Nakamura Y, Tsuji G, Furue M. Mortality in Yusho patients exposed to polychlorinated biphenyls and polychlorinated dibenzofurans: a 50-year retrospective cohort study. Environ Health 2020; 19:119. [PMID: 33228703 PMCID: PMC7685647 DOI: 10.1186/s12940-020-00680-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 11/17/2020] [Indexed: 05/03/2023]
Abstract
BACKGROUND In 1968, the Yusho incident resulted in accidental exposure to polychlorinated biphenyls (PCBs), polychlorinated dibenzofurans (PCDFs), and related compounds in Japan. This study updated the risk of mortality in Yusho patients. METHODS We obtained updated cohort data for all Yusho patients for the period 1968-2017. We calculated standardized mortality ratios (SMRs) for all-cause and cause-specific mortality over a 50-year follow-up period compared with the general population in Japan. RESULTS A total of 1664 Yusho patients with 63,566 person-years of follow up were included in the analysis. Among males, excess mortality was observed for all cancers (SMR: 1.22, 95% confidence interval [CI]: 1.02 to 1.45) and lung cancer (SMR: 1.59, 95% CI: 1.12 to 2.19). Among females, increased mortality was observed for liver cancer (SMR: 2.05, 95% CI: 1.02 to 3.67). No significant increase was seen in non-cancer-related mortality compared with the general population. CONCLUSIONS Carcinogenic risk in humans after exposure to PCBs and PCDFs remains higher among Yusho patients. Our findings suggest the importance of care engagement and optimum management to deal with the burden of Yusho disease.
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Affiliation(s)
- Daisuke Onozuka
- Department of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibeshin-machi, Suita, Osaka, 564-8565 Japan
- Department of Health Care Administration and Management, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuko Nakamura
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan
| | - Gaku Tsuji
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masutaka Furue
- Research and Clinical Center for Yusho and Dioxin, Kyushu University Hospital, Fukuoka, Japan
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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19
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Aminov Z, Carpenter DO. Serum concentrations of persistent organic pollutants and the metabolic syndrome in Akwesasne Mohawks, a Native American community. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114004. [PMID: 32004963 PMCID: PMC10658355 DOI: 10.1016/j.envpol.2020.114004] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
The metabolic syndrome (MetS) is a group of diseases that tend to occur together, including diabetes, hypertension, central obesity, cardiovascular disease and hyperlipidemia. Exposure to persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) has been associated with increased risk of development of several of the components of the MetS. The goal of this study is to determine whether the associations with POPs are identical for each of the components and for the MetS. The subject population was 601 Native Americans (Akwesasne Mohawks) ages 18 to 84 who answered a questionnaire, were measured for height and weight and provided blood samples for clinical chemistries (serum lipids and fasting glucose) and analysis of 101 PCB congeners and three OCPs [dichlorodiphenyldichloroethylene (DDE), hexachlorobenzene (HCB) and mirex]. Associations between concentrations of total PCBs and pesticides, as well as various PCB congener groups with each of the different components of the MetS were determine so as to ask whether there were similar risk factors for all components of the MetS. After adjustment for other contaminants, diabetes and hypertension were strongly associated with lower chlorinated and mono-ortho PCBs, but not other PCB groups or pesticides. Obesity was most closely associated with highly chlorinated PCBs and was negatively associated with mirex. High serum lipids were most strongly associated with higher chlorinated PCBs and PCBs with multiple ortho-substituted chlorines, as well as total pesticides, DDE and HCB. Cardiovascular disease was not closely associated with levels of any of the measured POPs. While exposure to POPs is associated with increased risk of most of the various diseases comprising the MetS, the specific contaminants associated with risk of the component diseases are not the same.
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Affiliation(s)
- Zafar Aminov
- Department of Environmental Health Sciences, School of Public Health, USA
| | - David O Carpenter
- Department of Environmental Health Sciences, School of Public Health, USA; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, 12144, USA.
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Frederiksen M, Andersen HV, Haug LS, Thomsen C, Broadwell SL, Egsmose EL, Kolarik B, Gunnarsen L, Knudsen LE. PCB in serum and hand wipes from exposed residents living in contaminated high-rise apartment buildings and a reference group. Int J Hyg Environ Health 2020; 224:113430. [DOI: 10.1016/j.ijheh.2019.113430] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/06/2019] [Accepted: 12/03/2019] [Indexed: 02/02/2023]
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Yilmaz B, Terekeci H, Sandal S, Kelestimur F. Endocrine disrupting chemicals: exposure, effects on human health, mechanism of action, models for testing and strategies for prevention. Rev Endocr Metab Disord 2020; 21:127-147. [PMID: 31792807 DOI: 10.1007/s11154-019-09521-z] [Citation(s) in RCA: 290] [Impact Index Per Article: 72.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Endocrine Disrupting Chemicals (EDCs) are a global problem for environmental and human health. They are defined as "an exogenous chemical, or mixture of chemicals, that can interfere with any aspect of hormone action". It is estimated that there are about 1000 chemicals with endocrine-acting properties. EDCs comprise pesticides, fungicides, industrial chemicals, plasticizers, nonylphenols, metals, pharmaceutical agents and phytoestrogens. Human exposure to EDCs mainly occurs by ingestion and to some extent by inhalation and dermal uptake. Most EDCs are lipophilic and bioaccumulate in the adipose tissue, thus they have a very long half-life in the body. It is difficult to assess the full impact of human exposure to EDCs because adverse effects develop latently and manifest at later ages, and in some people do not present. Timing of exposure is of importance. Developing fetus and neonates are the most vulnerable to endocrine disruption. EDCs may interfere with synthesis, action and metabolism of sex steroid hormones that in turn cause developmental and fertility problems, infertility and hormone-sensitive cancers in women and men. Some EDCs exert obesogenic effects that result in disturbance in energy homeostasis. Interference with hypothalamo-pituitary-thyroid and adrenal axes has also been reported. In this review, potential EDCs, their effects and mechanisms of action, epidemiological studies to analyze their effects on human health, bio-detection and chemical identification methods, difficulties in extrapolating experimental findings and studying endocrine disruptors in humans and recommendations for endocrinologists, individuals and policy makers will be discussed in view of the relevant literature.
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Affiliation(s)
- Bayram Yilmaz
- Department of Physiology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - Hakan Terekeci
- Department of Internal Medicine, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - Suleyman Sandal
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Fahrettin Kelestimur
- Department of Endocrinology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey.
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Ren XM, Li CH, Zhang JQ, Guo LH. Binding and activity of sulfated metabolites of lower-chlorinated polychlorinated biphenyls towards thyroid hormone receptor alpha. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:686-692. [PMID: 31146155 DOI: 10.1016/j.ecoenv.2019.05.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
There has been long-standing evidence that the lower-chlorinated polychlorinated biphenyls (LC-PCBs) can be metabolized to hydroxylated metabolites (OH-PCBs), which play important roles in the LC-PCBs induced toxicity. Recently, multiple studies have demonstrated the further metabolic transformation of OH-PCBs to LC-PCB sulfates in vitro and in vivo. Several studies found LC-PCB sulfates could bind with thyroid hormone (TH) transport proteins in the serum, indicating the potential relevance of these metabolites in the TH system disruption effects. However, the interaction of LC-PCB sulfates with the TH nuclear receptor (TR), another kind of important functional protein in the TH system, has not been explored. Here, by using a fluorescence competitive binding assay, we demonstrated that LC-PCB sulfates could bind with TRα. Moreover, the LC-PCB sulfates had higher binding potency than their corresponding OH-PCB precursors. By using a luciferase reporter gene assay, we found the LC-PCB sulfates showed agonistic activity towards the TRα signaling pathway. Molecular docking simulation showed all the tested LC-PCB sulfates could fit into the ligand binding pocket of the TRα. The LC-PCB sulfates formed hydrogen bond interaction with arginine 228 residue of TRα by their sulfate groups, which might facilitate the TR binding and agonistic activity. The present study suggests that interaction with the TR might be another possible mechanism by which LC-PCB sulfate induce TH system disruption effects.
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Affiliation(s)
- Xiao-Min Ren
- State Key Laboratory of Environmental Chemistry and Eco-toxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, P.O. Box 2871, Beijing, 100085, PR China
| | - Chuan-Hai Li
- State Key Laboratory of Environmental Chemistry and Eco-toxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, P.O. Box 2871, Beijing, 100085, PR China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100039, PR China
| | - Jian-Qing Zhang
- Shenzhen Center for Disease Control and Prevention, No.8 Longyuan Road, Shenzhen, 518055, Guangdong, China
| | - Liang-Hong Guo
- State Key Laboratory of Environmental Chemistry and Eco-toxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, P.O. Box 2871, Beijing, 100085, PR China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100039, PR China.
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23
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Strémy M, Šutová Z, Murínová ĽP, Richterová D, Wimmerová S, Čonka K, Drobná B, Fábelová L, Jurečková D, Jusko TA, Tihányi J, Trnovec T. The spatial distribution of congener-specific human PCB concentrations in a PCB-polluted region. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:2292-2303. [PMID: 30332662 PMCID: PMC6246788 DOI: 10.1016/j.scitotenv.2018.10.123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 05/30/2023]
Abstract
Serum PCB congener concentrations were measured in 602 adults living near a PCB pollution source in eastern Slovakia. We created isoconcentration maps for 21 PCB congeners by geocoding each participant's place of residence and kriging. Concentrations of PCB congeners were inversely associated with the distance of the participants' residence from the source of pollution. Congener-specific risk factors were derived, particularly for PCBs 52 and 153. We observed that the spatial distribution of serum concentrations was influenced by micro-climatic parameters and physicochemical properties of the congeners. PCB congener profiles strongly correlated with that of the PCB commercial product Delor 106, which was manufactured in the region. The isoconcentration maps indicate that the zones with the highest predicted congener concentration have a mean area of approximately 235.75±188.56km2 and the mean enrichment of concentration of congeners in serum in these zones is about 5.12±1.36. We estimate that depending on congener approximately 23,457±18,762 individuals with PCB concentrations exceeding health-based guidance values live in these zones.
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Affiliation(s)
- Maximilián Strémy
- Research Centre of Progressive Technologies, Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Hajdóczyho 1, 917 24 Trnava, Slovakia
| | - Zuzana Šutová
- Research Centre of Progressive Technologies, Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Hajdóczyho 1, 917 24 Trnava, Slovakia
| | | | | | - Soňa Wimmerová
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia
| | - Kamil Čonka
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia
| | - Beata Drobná
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia
| | - Lucia Fábelová
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia
| | - Dana Jurečková
- The Štefan Kukura Hospital and Policlinic, Michalovce, Slovakia
| | - Todd A Jusko
- Departments of Public Health Sciences and Environmental Medicine, University of Rochester School of Medicine and Dentistry, 265 Crittenden Blvd., Rochester, NY 14642, USA
| | - Juraj Tihányi
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia
| | - Tomáš Trnovec
- Slovak Medical University, Limbová 12, 83303 Bratislava, Slovakia.
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24
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Lin CK, Hsu YT, Christiani DC, Hung HY, Lin RT. Risks and burden of lung cancer incidence for residential petrochemical industrial complexes: A meta-analysis and application. ENVIRONMENT INTERNATIONAL 2018; 121:404-414. [PMID: 30261461 DOI: 10.1016/j.envint.2018.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 08/20/2018] [Accepted: 09/08/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Lung cancer is one of the most common cancers in the world. Higher incidence of lung cancer may be associated with residential proximity to a petrochemical industrial complex (PIC) due to exposure to various carcinogens, although results from previous epidemiologic studies remain inconclusive. Because disease burden due to residential inequality is a public health and societal concern, this study analyzed published data to estimate lung cancer incidence in association with residential proximity to PICs. METHODS We performed a meta-analysis on selected epidemiologic studies that met the following criteria: lung cancer incidence was coded by the International Classification of Diseases; exposure groups were clearly defined as residents living near PICs; and confidence intervals were available or calculable from original articles. We further applied a population attributable factor (PAF) method to estimate disease burden attributable to living near PICs in 22 European Union (EU) countries. RESULTS Meta-analysis included six studies with a total of 466,066 residents living near PICs in six countries. Residents living near PICs had a 19% higher risk of lung cancer compared to those who lived farther away (95% CI = 1.06-1.32). By sex, risks were higher and more significant for females (RR = 1.29; 95% CI = 1.09-1.54; P = 0.004) than males (RR = 1.12; 95% CI = 0.95-1.33; P = 0.173). By location, only groups in Europe had a significantly greater risk of lung cancer with exposure to PICs (95% CI = 1.03-1.33; P = 0.019), although groups in other locations showed similar trends. By bona fide observation, observation of residents for at least seven years provided sufficient latency to estimate risk (RR = 1.25; 95% CI = 1.17-1.34; P < 0.001). Regarding burden of lung cancer in 22 EU countries, 494 males and 478 females were attributed to living in the vicinity of a PIC annually. CONCLUSIONS Lung cancer incidence is significantly higher in individuals living near PICs. This result provides strong epidemiologic evidence for further policy to regulate potential pollutants near PICs. HIGHLIGHTS Higher incident rates of lung cancer for residents living close to petrochemical industry complex.
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Affiliation(s)
- Cheng-Kuan Lin
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1 Room 1401, Boston, MA 02115, USA.
| | - Yu-Tien Hsu
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Kresge Building, 7th Floor, Boston, MA 02115, USA.
| | - David C Christiani
- Departments of Environmental Health and Epidemiology, Harvard T.H. Chan School of Public Health, 665 Huntington Avenue, Building 1 Room 1401, Boston, MA 02115, USA.
| | - Huei-Yang Hung
- Department of Clinical Education and Training, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Road, Kaohsiung 807, Taiwan
| | - Ro-Ting Lin
- Department of Occupational Safety and Health, College of Public Health, China Medical University, 91 Hsueh-Shih Road, Taichung 40402, Taiwan.
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25
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Gallo MV, Ravenscroft J, Carpenter DO, Schell LM. Persistent organic pollutants as predictors of increased FSH:LH ratio in naturally cycling, reproductive age women. ENVIRONMENTAL RESEARCH 2018; 164:556-564. [PMID: 29621723 PMCID: PMC5983370 DOI: 10.1016/j.envres.2018.03.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/06/2018] [Accepted: 03/12/2018] [Indexed: 05/19/2023]
Abstract
Although several recent studies suggest endocrine disrupting compounds, such as polychlorinated biphenyls (PCBs), dichlorodiphenyldichloroethylene (p,p', DDE), and hexachlorobenzene (HCB), target different organs and systems in the body, their impact on female reproductive function in humans is not well characterized. We seek to determine the relationship between several known endocrine disrupting compounds and a marker of ovarian responsivity, the FSH:LH ratio (higher ratio indicates less ovarian responsivity). For this analysis, 169 naturally cycling women between 21 and 38 years of age completed interviews and had their blood drawn on day 3 of their menstrual cycle for analyses of toxicants, gonadal sex hormones (E2 and P4), and gonadotropins (FSH and LH). PCB congeners were classified into five groups based on their environmental persistence, distribution in human tissue, and toxicological action, reflecting the structure, mechanism, and known biological activity of individual PCB congeners. For every unit (ppb) increase in the level of the estrogenic PCB group, there was a 5-fold greater risk of a FSH:LH ratio ≥ 2, controlling for individual differences in age, percent body fat, cycle day 3 estradiol levels, parity, alcohol use and cigarette smoking in the past year (exp[ß] = 5; p = ≤0.01). PCB congeners identified as estrogenic were analyzed individually, and, of the 19 potentially estrogenic congeners, five were significantly, and positively related to an increased FSH:LH ratio. Four of these congeners are non-persistent, easily volatilize in the environment, and are easily metabolized, and hence, are indicative of very recent or current exposure. p,p'-DDE and HCB were not associated with FSH:LH ratio. We find a clinical indicator of ovarian responsivity, FSH:LH ratio, is associated with a specific group of estrogenic PCBs. These congeners may become airborne when they volatilize from dredged PCB-contaminated soil or from indoor PCB-containing window caulk and sealants in older buildings leading to inhalation exposure. PCB exposure, particularly to non-persistent, estrogenic congeners, may pose an unrecognized threat to female fecundity within the general population.
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Affiliation(s)
- Mia V Gallo
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Ave., Albany, NY, USA; Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Ave., Albany, NY, USA; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, USA.
| | - Julia Ravenscroft
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Ave., Albany, NY, USA
| | - David O Carpenter
- Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Ave., Albany, NY, USA; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, USA
| | - Lawrence M Schell
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Ave., Albany, NY, USA; Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Ave., Albany, NY, USA; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, USA; University at Albany, Department of Epidemiology and Biostatistics, School of Public Health, One University Place, Room 131, Rensselaer, NY, USA
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26
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Pěnčíková K, Svržková L, Strapáčová S, Neča J, Bartoňková I, Dvořák Z, Hýžďalová M, Pivnička J, Pálková L, Lehmler HJ, Li X, Vondráček J, Machala M. In vitro profiling of toxic effects of prominent environmental lower-chlorinated PCB congeners linked with endocrine disruption and tumor promotion. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 237:473-486. [PMID: 29518658 PMCID: PMC5908724 DOI: 10.1016/j.envpol.2018.02.067] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/20/2018] [Accepted: 02/20/2018] [Indexed: 05/18/2023]
Abstract
The mechanisms contributing to toxic effects of airborne lower-chlorinated PCB congeners (LC-PCBs) remain poorly characterized. We evaluated in vitro toxicities of environmental LC-PCBs found in both indoor and outdoor air (PCB 4, 8, 11, 18, 28 and 31), and selected hydroxylated metabolites of PCB 8, 11 and 18, using reporter gene assays, as well as other functional cellular bioassays. We focused on processes linked with endocrine disruption, tumor promotion and/or regulation of transcription factors controlling metabolism of both endogenous compounds and xenobiotics. The tested LC-PCBs were found to be mostly efficient anti-androgenic (within nanomolar - micromolar range) and estrogenic (at micromolar concentrations) compounds, as well as inhibitors of gap junctional intercellular communication (GJIC) at micromolar concentrations. PCB 8, 28 and 31 were found to partially inhibit the aryl hydrocarbon receptor (AhR)-mediated activity. The tested LC-PCBs were also partial constitutive androstane receptor (CAR) and pregnane X receptor (PXR) agonists, with PCB 4, 8 and 18 being the most active compounds. They were inactive towards other nuclear receptors, such as vitamin D receptor, thyroid receptor α, glucocorticoid receptor or peroxisome proliferator-activated receptor γ. We found that only PCB 8 contributed to generation of oxidative stress, while all tested LC-PCBs induced arachidonic acid release (albeit without further modulations of arachidonic acid metabolism) in human lung epithelial cells. Importantly, estrogenic effects of hydroxylated (OH-PCB) metabolites of LC-PCBs (4-OH-PCB 8, 4-OH-PCB 11 and 4'-OH-PCB 18) were higher than those of the parent PCBs, while their other toxic effects were only slightly altered or suppressed. This suggested that metabolism may alter toxicity profiles of LC-PCBs in a receptor-specific manner. In summary, anti-androgenic and estrogenic activities, acute inhibition of GJIC and suppression of the AhR-mediated activity were found to be the most relevant modes of action of airborne LC-PCBs, although they partially affected also additional cellular targets.
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Affiliation(s)
- Kateřina Pěnčíková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic
| | - Lucie Svržková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic
| | - Simona Strapáčová
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic
| | - Jiří Neča
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic
| | - Iveta Bartoňková
- Department of Cell Biology and Genetics, Faculty of Science, Šlechtitelů 11, Palacký University, 78371 Olomouc, Czech Republic
| | - Zdeněk Dvořák
- Department of Cell Biology and Genetics, Faculty of Science, Šlechtitelů 11, Palacký University, 78371 Olomouc, Czech Republic
| | - Martina Hýžďalová
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic; Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic
| | - Jakub Pivnička
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic
| | - Lenka Pálková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, 52242, IA, USA
| | - Xueshu Li
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, 52242, IA, USA
| | - Jan Vondráček
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265 Brno, Czech Republic.
| | - Miroslav Machala
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 70, 62100 Brno, Czech Republic.
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27
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Lombardo JP, Peck JA. Effects of exposure to polychlorinated biphenyls during different periods of development on ethanol consumption by male and female rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:334-342. [PMID: 29414356 DOI: 10.1016/j.envpol.2018.01.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 05/06/2023]
Abstract
In two experiments, male and female Sprague-Dawley rats were exposed to Polychlorinated Biphenyls (PCBs) to assess the effect PCBs, an estrogenic endocrine disrupting chemical (EEDC), would have on the voluntary consumption of alcohol. There are several EEDCs in our food that are known to increase estrogen in adolescent females. Our objective was to assess the effect that increasing estrogen, by adding the EEDC PCBs would have on volitional intake of alcohol. In Experiment 1, pregnant dams were exposed from gestational days 5-19 to a 1:1 mixture of Aroclor 1254/1260. In Experiment 2, lactating females were exposed to the same dose of 1254:1260 from postnatal days 1-21. In both experiments, a fade-in procedure was used to gradually introduce the rats to the taste of alcohol. At the end of the fade-in series all animals were given limited access (1 h/day) to a water/alcohol solution. We found that females exposed to PCBs, at two developmental periods, consumed significantly more alcohol than unexposed females and exposed and unexposed males. Results of the experiments are discussed in terms of how PCB exposure can disrupt endocrine processes (e.g., estrogenic endocrine disrupting chemicals, EEDC) that increase estrogen in females, thereby leading to increased alcohol consumption. Thus, the present findings suggest that EEDCs, such as PCBs, could contribute to the increase abuse of alcohol in adolescent females.
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Affiliation(s)
| | - Joshua A Peck
- State University of New York College at Cortland, USA
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28
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Otarola G, Castillo H, Marcellini S. Aryl hydrocarbon receptor-based bioassays for dioxin detection: Thinking outside the box. J Appl Toxicol 2017; 38:437-449. [DOI: 10.1002/jat.3575] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/26/2017] [Accepted: 11/09/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Gaston Otarola
- Department of Cell Biology, Faculty of Biological Sciences; University of Concepcion; Chile
| | - Hector Castillo
- Department of Cell Biology, Faculty of Biological Sciences; University of Concepcion; Chile
| | - Sylvain Marcellini
- Department of Cell Biology, Faculty of Biological Sciences; University of Concepcion; Chile
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29
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Behforooz B, Newman J, Gallo MV, Schell LM. PCBs and measures of attention and impulsivity on a continuous performance task of young adults. Neurotoxicol Teratol 2017; 64:29-36. [PMID: 28882586 PMCID: PMC5754016 DOI: 10.1016/j.ntt.2017.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 01/03/2023]
Abstract
The present study examines the relationship between current body burden of persistent PCBs and attention and impulsivity in 140 Akwesasne Mohawk young adults aged 17 to 21 whose environment has been contaminated by industrial effluent. Attention and impulsivity were measured by errors of omission, errors of commission, and patterns of reaction time responses on the Conners Continuous Performance Test. The PCB measure was the sum of those persistent PCB congeners detected in 50% of the participants. After adjusting for multiple covariates, regression analyses showed a significant positive relationship between PCB levels and omission scores, but only for males.
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Affiliation(s)
- Bita Behforooz
- Educational Psychology and Methodology, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 1222, USA.
| | - Joan Newman
- Educational Psychology and Methodology, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 1222, USA
| | - Mia V Gallo
- Department of Anthropology, and Center for the Elimination of Minority Health Disparities, University at Albany, SUNY, 1400 Washington Ave., Albany, NY 1222, USA
| | - Lawrence M Schell
- Department of Anthropology, Department of Epidemiology and Biostatistics, Center for the Elimination of Minority Health Disparities, 1400 Washington Ave., Albany, NY 1222, USA
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30
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Marek RF, Thorne PS, Herkert NJ, Awad AM, Hornbuckle KC. Airborne PCBs and OH-PCBs Inside and Outside Urban and Rural U.S. Schools. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:7853-7860. [PMID: 28656752 PMCID: PMC5777175 DOI: 10.1021/acs.est.7b01910] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
PCBs appear in school air because many school buildings were built when PCBs were still intentionally added to building materials and because PCBs are also present through inadvertent production in modern pigment. This is of concern because children are especially vulnerable to the toxic effects of PCBs. Here we report indoor and outdoor air concentrations of PCBs and OH-PCBs from two rural schools and four urban schools, the latter near a PCB-contaminated waterway of Lake Michigan in the United States. Samples (n = 108) were collected as in/out pairs using polyurethane foam passive air samplers (PUF-PAS) from January 2012 to November 2015. Samples were analyzed using GC/MS-MS for all 209 PCBs and 72 OH-PCBs. Concentrations inside schools were 1-2 orders of magnitude higher than outdoors and ranged from 0.5 to 194 ng/m3 (PCBs) and from 4 to 665 pg/m3 (OH-PCBs). Congener profiles were similar within each sampling location across season but different between schools and indicated the sources as Aroclors from building materials and individual PCBs associated with modern pigment. This study is the first cohort-specific analysis to show that some children's PCB inhalation exposure may be equal to or higher than their exposure through diet.
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Affiliation(s)
- Rachel F. Marek
- IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City IA (USA) 52242
- Corresponding authors’ contact information: Rachel F. Marek: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, , (319) 335-5585, FAX (319) 335-5660; Keri C. Hornbuckle: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, ; (319) 384-0789, FAX: (319) 335-5660; Peter S. Thorne: 105 River St., S341A CPHB, Iowa City, IA 52242, , (319) 335-4216, FAX: (319) 384-4138
| | - Peter S. Thorne
- Department of Occupational and Environmental Health, The University of Iowa, Iowa City IA (USA) 52242
- Corresponding authors’ contact information: Rachel F. Marek: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, , (319) 335-5585, FAX (319) 335-5660; Keri C. Hornbuckle: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, ; (319) 384-0789, FAX: (319) 335-5660; Peter S. Thorne: 105 River St., S341A CPHB, Iowa City, IA 52242, , (319) 335-4216, FAX: (319) 384-4138
| | - Nicholas J. Herkert
- IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City IA (USA) 52242
- Department of Civil & Environmental Engineering, The University of Iowa, Iowa City IA (USA) 52242
| | - Andrew M. Awad
- IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City IA (USA) 52242
| | - Keri C. Hornbuckle
- IIHR-Hydroscience and Engineering, The University of Iowa, Iowa City IA (USA) 52242
- Department of Civil & Environmental Engineering, The University of Iowa, Iowa City IA (USA) 52242
- Corresponding authors’ contact information: Rachel F. Marek: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, , (319) 335-5585, FAX (319) 335-5660; Keri C. Hornbuckle: 103 S. Capitol St., 4105 SC, Iowa City, IA 52242, ; (319) 384-0789, FAX: (319) 335-5660; Peter S. Thorne: 105 River St., S341A CPHB, Iowa City, IA 52242, , (319) 335-4216, FAX: (319) 384-4138
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31
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Quinete N, Esser A, Kraus T, Schettgen T. PCB 28 metabolites elimination kinetics in human plasma on a real case scenario: Study of hydroxylated polychlorinated biphenyl (OH-PCB) metabolites of PCB 28 in a highly exposed German Cohort. Toxicol Lett 2017; 276:100-107. [DOI: 10.1016/j.toxlet.2017.05.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/17/2017] [Accepted: 05/23/2017] [Indexed: 02/02/2023]
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32
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Assaggaf H, Felty Q. Gender, Estrogen, and Obliterative Lesions in the Lung. Int J Endocrinol 2017; 2017:8475701. [PMID: 28469671 PMCID: PMC5392403 DOI: 10.1155/2017/8475701] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 02/20/2017] [Accepted: 03/07/2017] [Indexed: 12/16/2022] Open
Abstract
Gender has been shown to impact the prevalence of several lung diseases such as cancer, asthma, chronic obstructive pulmonary disease, and pulmonary arterial hypertension (PAH). Controversy over the protective effects of estrogen on the cardiopulmonary system should be of no surprise as clinical trials of hormone replacement therapy have failed to show benefits observed in experimental models. Potential confounders to explain these inconsistent estrogenic effects include the dose, cellular context, and systemic versus local tissue levels of estrogen. Idiopathic PAH is disproportionately found to be up to 4 times more common in females than in males; however, estrogen levels cannot explain why males develop PAH sooner and have poorer survival. Since the sex steroid hormone 17β-estradiol is a mitogen, obliterative processes in the lung such as cell proliferation and migration may impact the growth of pulmonary tissue or vascular cells. We have reviewed evidence for biological differences of sex-specific lung obliterative lesions and highlighted cell context-specific effects of estrogen in the formation of vessel lumen-obliterating lesions. Based on this information, we provide a biological-based mechanism to explain the sex difference in PAH severity as well as propose a mechanism for the formation of obliterative vascular lesions by estrogens.
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Affiliation(s)
- Hamza Assaggaf
- Department of Environmental & Occupational Health, Florida International University, Miami, FL, USA
| | - Quentin Felty
- Department of Environmental & Occupational Health, Florida International University, Miami, FL, USA
- *Quentin Felty:
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33
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Grimm FA, Lehmler HJ, Koh WX, DeWall J, Teesch LM, Hornbuckle KC, Thorne PS, Robertson LW, Duffel MW. Identification of a sulfate metabolite of PCB 11 in human serum. ENVIRONMENT INTERNATIONAL 2017; 98:120-128. [PMID: 27816204 PMCID: PMC5127762 DOI: 10.1016/j.envint.2016.10.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/21/2016] [Accepted: 10/25/2016] [Indexed: 05/18/2023]
Abstract
Despite increasing evidence for a major role for sulfation in the metabolism of lower-chlorinated polychlorinated biphenyls in vitro and in vivo, and initial evidence for potential bioactivities of the resulting sulfate ester metabolites, the formation of PCB sulfates in PCB exposed human populations had not been explored. The primary goal of this study was to determine if PCB sulfates, and potentially other conjugated PCB derivatives, are relevant classes of PCB metabolites in the serum of humans with known exposures to PCBs. In order to detect and quantify dichlorinated PCB sulfates in serum samples of 46 PCB-exposed individuals from either rural or urban communities, we developed a high-resolution mass spectrometry-based protocol using 4-PCB 11 sulfate as a model compound. The method also allowed the preliminary analysis of these 46 human serum extracts for the presence of other metabolites, such as glucuronic acid conjugates and hydroxylated PCBs. Sulfate ester metabolites derived from dichlorinated PCBs were detectable and quantifiable in more than 20% of analyzed serum samples. Moreover, we were able to utilize this method to detect PCB glucuronides and hydroxylated PCBs, albeit at lower frequencies than PCB sulfates. Altogether, our results provide initial evidence for the presence of PCB sulfates in human serum. Considering the inability of previously employed analytical protocols for PCBs to extract these sulfate ester metabolites and the concentrations of these metabolites observed in our current study, our data support the hypothesis that total serum levels of PCB metabolites in exposed individuals may have been underestimated in the past.
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Affiliation(s)
- Fabian A Grimm
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA, USA
| | - Hans-Joachim Lehmler
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Wen Xin Koh
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Civil and Environmental Engineering, College of Engineering, The University of Iowa, Iowa City, USA
| | - Jeanne DeWall
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Lynn M Teesch
- High Resolution Mass Spectrometry Facility, The University of Iowa, Iowa City, USA
| | - Keri C Hornbuckle
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Civil and Environmental Engineering, College of Engineering, The University of Iowa, Iowa City, USA
| | - Peter S Thorne
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Larry W Robertson
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, USA
| | - Michael W Duffel
- Interdisciplinary Graduate Program in Human Toxicology, The University of Iowa, Iowa City, IA, USA; Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA, USA.
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Gallo MV, Ravenscroft J, Carpenter DO, Frye C, Akwesasne Task Force On The Environment, Cook B, Schell LM. Endocrine disrupting chemicals and ovulation: Is there a relationship? ENVIRONMENTAL RESEARCH 2016; 151:410-418. [PMID: 27543788 DOI: 10.1016/j.envres.2016.08.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 08/04/2016] [Accepted: 08/07/2016] [Indexed: 05/11/2023]
Abstract
Although the potential for endocrine disrupting chemicals (EDCs) to disrupt female fecundity is great, few studies have assessed the threat to human reproduction. This study investigates levels of organochlorines in relation to their impact on women's menstrual cycles and ovulatory status. To address concerns of the Akwesasne Mohawk community in upstate New York regarding well-established exposure to EDCs, women's fertility and reproductive health endpoints, we recruited 215 women between the ages of 21 and 38 years to measure menstrual cycle characteristics and levels of local pollutants. Of these, 155 women collected saliva over the course of their menstrual cycle allowing for analysis of estradiol and progesterone levels and the determination of ovulatory status in relationship to their serum pollutant levels. A subset of participants (15) who did not commence cycling within a month of their enrollment were not included in the analysis, hence reducing the sample size to 140 participants. Additionally, a lipid panel, estradiol and progesterone were assessed in serum on Day 3 of the menstrual cycle. Median cycle length for women in the sample was 29 days. After aligning the cycles, 110 women were considered ovulatory and 45 (29%) anovulatory. Concentrations of groups of more persistent PCBs congeners, HCB, and p,p'-DDE did not differ significantly with ovulatory status. However, a sub-group of low-chlorinated PCB congeners, considered to be estrogenic were significantly higher among anovulatory women. These findings suggest that certain EDC's, ubiquitous in our environment, may adversely affect menstrual cycles and thus have the capacity to impair reproductive function, including likelihood of conception.
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Affiliation(s)
- Mia V Gallo
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Avenue, Albany, NY, United States; Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Avenue, Albany, NY, United States.
| | - Julia Ravenscroft
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Avenue, Albany, NY, United States
| | - David O Carpenter
- Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Avenue, Albany, NY, United States; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, United States
| | - Cheryl Frye
- University at Albany, Department of Psychology, 1400 Washington Avenue, Albany, NY, United States
| | | | - Beverly Cook
- St. Regis Mohawk Tribal Council, Akwesasne, NY, United States
| | - Lawrence M Schell
- University at Albany, Department of Anthropology, A&S 237, 1400 Washington Avenue, Albany, NY, United States; Center for the Elimination of Minority Health Disparities, University at Albany-SUNY, 1400 Washington Avenue, Albany, NY, United States; Institute for Health and the Environment, University at Albany, 5 University Place, Rensselaer, NY, United States; University at Albany, Department of Epidemiology and Biostatistics, School of Public Health, One University Place, Room 131, Rensselaer, NY, United States
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Aminov Z, Haase R, Rej R, Schymura MJ, Santiago-Rivera A, Morse G, DeCaprio A, Carpenter DO. Diabetes Prevalence in Relation to Serum Concentrations of Polychlorinated Biphenyl (PCB) Congener Groups and Three Chlorinated Pesticides in a Native American Population. ENVIRONMENTAL HEALTH PERSPECTIVES 2016; 124:1376-83. [PMID: 27035469 PMCID: PMC5010411 DOI: 10.1289/ehp.1509902] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/08/2015] [Accepted: 03/07/2016] [Indexed: 05/18/2023]
Abstract
BACKGROUND Exposure to persistent organic pollutants (POPs) is known to increase risk of diabetes. OBJECTIVE To determine which POPs are most associated with prevalence of diabetes in 601 Akwesasne Native Americans. METHODS Multiple logistic regression analysis was used to assess associations between quartiles of concentrations of 101 polychlorinated biphenyl (PCBs) congeners, congener groups and three chlorinated pesticides [dichlorodiphenyldichloroethylene (DDE), hexachlorobenzene (HCB) and mirex] with diabetes. In Model 1, the relationship between quartiles of exposure and diabetes were adjusted only for sex, age, body mass index (BMI), and total serum lipids. Model 2 included additional adjustment for either total PCBs or total pesticides. RESULTS Total serum PCB and pesticide concentrations were each significantly associated with prevalence of diabetes when adjusted only for covariates (Model 1), but neither showed a significant OR for highest to lowest quartiles after additional adjustment for the other (Model 2). When applying Model 2 to PCB congener groups and individual pesticides, there were significant omnibus differences between the four quartiles (all ps < 0.042) for most groups, with the exception of penta- and hexachlorobiphenyls, DDE and mirex. However, when comparing highest to lowest quartiles only non- and mono-ortho PCBs [OR = 4.55 (95% CI: 1.48, 13.95)], tri- and tetrachloro PCBs [OR = 3.66 (95% CI: 1.37, -9.78)] and HCB [OR = 2.64 (95% CI: 1.05, 6.61)] showed significant associations with diabetes. Among the non- and mono-ortho congeners, highest to lowest quartile of dioxin TEQs was not significant [OR = 1.82 (95% CI: 0.61, 5.40)] but the OR for the non-dioxin-like congeners was [OR = 5.01 (95% CI: 1.76, 14.24)]. CONCLUSION The associations with diabetes after adjustment for other POPs were strongest with the more volatile, non-dioxin-like, low-chlorinated PCB congeners and HCB. Because low-chlorinated congeners are more volatile, these observations suggest that inhalation of vapor-phase PCBs is an important route of exposure. CITATION Aminov Z, Haase R, Rej R, Schymura MJ, Santiago-Rivera A, Morse G, DeCaprio A, Carpenter DO, and the Akwesasne Task Force on the Environment. 2016. Diabetes prevalence in relation to serum concentrations of polychlorinated biphenyl (PCB) congener groups and three chlorinated pesticides in a Native American population. Environ Health Perspect 124:1376-1383; http://dx.doi.org/10.1289/ehp.1509902.
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Affiliation(s)
- Zafar Aminov
- Department of Environmental Health Sciences, School of Public Health, and
- Institute for Health and the Environment, University at Albany, State University of New York (SUNY), Rensselaer, New York, USA
| | - Richard Haase
- Institute for Health and the Environment, University at Albany, State University of New York (SUNY), Rensselaer, New York, USA
- Department of Counseling Psychology, University at Albany, SUNY, Albany, New York, USA
| | - Robert Rej
- Wadsworth Center, New York State Department of Health and Department of Biomedical Sciences, School of Public Health, University at Albany, SUNY, Rensselaer, New York, USA
| | - Maria J. Schymura
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, SUNY, Rensselaer, New York, USA
| | - Azara Santiago-Rivera
- Department of Counseling Psychology, University at Albany, SUNY, Albany, New York, USA
| | - Gayle Morse
- Department of Counseling Psychology, University at Albany, SUNY, Albany, New York, USA
| | - Anthony DeCaprio
- Department of Environmental Health Sciences, School of Public Health, and
| | - David O. Carpenter
- Department of Environmental Health Sciences, School of Public Health, and
- Institute for Health and the Environment, University at Albany, State University of New York (SUNY), Rensselaer, New York, USA
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Rodriguez EA, Li X, Lehmler HJ, Robertson LW, Duffel MW. Sulfation of Lower Chlorinated Polychlorinated Biphenyls Increases Their Affinity for the Major Drug-Binding Sites of Human Serum Albumin. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:5320-7. [PMID: 27116425 PMCID: PMC4883002 DOI: 10.1021/acs.est.6b00484] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The disposition of toxicants is often affected by their binding to serum proteins, of which the most abundant in humans is serum albumin (HSA). There is increasing interest in the toxicities of environmentally persistent polychlorinated biphenyls (PCBs) with lower numbers of chlorine atoms (LC-PCBs) due to their presence in both indoor and outdoor air. PCB sulfates derived from metabolic hydroxylation and sulfation of LC-PCBs have been implicated in endocrine disruption due to high affinity-binding to the thyroxine-carrying protein, transthyretin. Interactions of these sulfated metabolites of LC-PCBs with HSA, however, have not been previously explored. We have now determined the relative HSA-binding affinities for a group of LC-PCBs and their hydroxylated and sulfated derivatives by selective displacement of the fluorescent probes 5-dimethylamino-1-naphthalenesulfonamide and dansyl-l-proline from the two major drug-binding sites on HSA (previously designated as Site I and Site II). Values for half-maximal displacement of the probes indicated that the relative binding affinities were generally PCB sulfate ≥ OH-PCB > PCB, although this affinity was site- and congener-selective. Moreover, specificity for Site II increased as the numbers of chlorine atoms increased. Thus, hydroxylation and sulfation of LC-PCBs result in selective interactions with HSA which may affect their overall retention and toxicity.
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Affiliation(s)
- Eric A. Rodriguez
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa, USA
| | - Xueshu Li
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Larry W. Robertson
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, Iowa, USA
| | - Michael W. Duffel
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa, USA
- Address correspondence to Michael W. Duffel, Ph.D., Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, 115 South Grand Ave, S325, Iowa City, IA, 52246. Telephone: 319-335-8840. Fax: 319-335-8766.
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Lyng NL, Clausen PA, Lundsgaard C, Andersen HV. Modelling the impact of room temperature on concentrations of polychlorinated biphenyls (PCBs) in indoor air. CHEMOSPHERE 2016; 144:2127-2133. [PMID: 26583295 DOI: 10.1016/j.chemosphere.2015.10.112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/13/2015] [Accepted: 10/26/2015] [Indexed: 06/05/2023]
Abstract
Buildings contaminated with polychlorinated biphenyls (PCBs) are a health concern for the building occupants. Inhalation exposure is linked to indoor air concentrations of PCBs, which are known to be affected by indoor temperatures. In this study, a highly PCB contaminated room was heated to six temperature levels between 20 and 30 C, i.e. within the normal fluctuation of indoor temperatures, while the air exchange rate was constant. The steady-state air concentrations of seven PCBs were determined at each temperature level. A model based on Clausius-Clapeyron equation, ln(P) = -ΔH/RT + a(0), where changes in steady-state air concentrations in relation to temperature, was tested. The model was valid for PCB-28, PCB-52 and PCB-101; the four other congeners were sporadic or non-detected. For each congener, the model described a large proportion (R(2)>94%) of the variation in indoor air PCB levels. The results showed that one measured concentration of PCB at a known steady-state temperature can be used to predict the steady-state concentrations at other temperatures under circumstances where e.g. direct sunlight does not influence temperatures and the air exchange rate is constant. The model was also tested on field data from a PCB remediation case in an apartment in another contaminated building complex where PCB concentrations and temperature were measured simultaneously and regularly throughout one year. The model fitted relatively well with the regression of measured PCB air concentrations, ln(P) vs. 1/T, at varying temperature between 16.3 and 28.2 °C, even though the measurements were carried out under uncontrolled environmental condition.
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Affiliation(s)
- Nadja Lynge Lyng
- Danish Building Research Institute, Aalborg University Copenhagen, A.C. Meyers Vænge 15, DK-2450, Copenhagen SV, Denmark.
| | - Per Axel Clausen
- National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100, Copenhagen Ø, Denmark
| | - Claus Lundsgaard
- Scandinavian Bio-Medical Institute (SBMI), Rungstedvej 21, DK-2970, Hørsholm, Denmark
| | - Helle Vibeke Andersen
- Danish Building Research Institute, Aalborg University Copenhagen, A.C. Meyers Vænge 15, DK-2450, Copenhagen SV, Denmark
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Egsmose EL, Bräuner EV, Frederiksen M, Mørck TA, Siersma VD, Hansen PW, Nielsen F, Grandjean P, Knudsen LE. Associations between plasma concentrations of PCB 28 and possible indoor exposure sources in Danish school children and mothers. ENVIRONMENT INTERNATIONAL 2016; 87:13-19. [PMID: 26638015 DOI: 10.1016/j.envint.2015.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/07/2015] [Accepted: 11/08/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Polychlorinated biphenyls (PCBs) are ubiquitously present in the environment and are suspected of carcinogenic, neurotoxic and immunotoxic effects. Significantly higher plasma concentrations of the congener PCB 28 occur in children compared to adults. Exposure in schools may contribute to this difference. OBJECTIVE To determine whether increased blood plasma concentrations of PCB 28 in Danish school children and mothers are associated with living in homes or attending schools constructed in the PCB period (1959-1977). METHODS PCB 28 was analyzed in plasma samples from 116 children aged 6-11years and 143 mothers living in an urban and a rural area in Denmark and participating in the European pilot project DEMOCOPHES (Demonstration of a study to COordinate and Perform Human Biomonitoring on a European Scale). In Denmark, PCBs were used in construction in the period 1950-1977, and year of construction or renovation of the homes and schools was used as a proxy for indoor PCB exposure. Linear regression models were used to assess the association between potential PCB exposure from building materials and lipid adjusted concentrations of PCB 28 in plasma, with and without adjustment for potential confounders. RESULTS Among the 116 children and 143 mothers, we were able to specify home construction period in all but 4 children and 5 mothers leaving 111 children and 138 mothers for our analyses. The median lipid adjusted plasma PCB 28 concentration was 3 (range: 1-28) ng/g lipid in the children and 2 (range: 1-8) ng/g lipid in the mothers. Children living in homes built in the PCB period had significantly higher lipid adjusted plasma PCB 28 concentrations compared to children living in homes built before or after the PCB period. Following adjustment for covariates, PCB 28 concentrations in children were 40 (95% CI: 13; 68) percent higher than concentrations of children living in homes constructed at other times. Furthermore, children attending schools built or substantially refurbished in the PCB period also had significantly higher (46%, 95% CI: 22; 70) PCB 28 concentrations compared to children attending schools constructed before or after the PCB period, while their mothers had similar concentrations. Adjustment for the most prevalent congener, PCB 153, did not change this effect of home or school construction. When both home and school construction year were included in the models, the increase in lipid adjusted plasma PCB 28 for children living in or attending schools from the PCB period was no longer statistically significant. The individual effect of home and school construction periods could not be evaluated further with the available data. CONCLUSION Our results suggest that PCB exposure in the indoor environment in schools and homes constructed during the PCB period may contribute significantly to children's plasma PCB 28 concentration. Efforts to minimize PCB exposure in indoor environments should be considered.
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Affiliation(s)
- Emilie Lund Egsmose
- Section of Environmental Health, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Elvira Vaclavik Bräuner
- Department of Construction and Health, Danish Building Research Institute, Aalborg University, Denmark
| | - Marie Frederiksen
- Department of Construction and Health, Danish Building Research Institute, Aalborg University, Denmark
| | - Thit Aarøe Mørck
- Section of Environmental Health, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Volkert Dirk Siersma
- The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Pernille Winton Hansen
- Section of Environmental Health, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Flemming Nielsen
- Environmental Medicine, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Philippe Grandjean
- Environmental Medicine, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - Lisbeth E Knudsen
- Section of Environmental Health, Faculty of Health Sciences, University of Copenhagen, Denmark.
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Lombardo JP, Berger DF, Hunt A, Carpenter DO. Inhalation of Polychlorinated Biphenyls (PCB) Produces Hyperactivity in Rats. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:1142-1153. [PMID: 26398098 DOI: 10.1080/15287394.2015.1060913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Attention deficit hyperactivity disorder (ADHD) is a serious behavioral syndrome seen in children, and more common in males than females. There is increasing evidence that prenatal and/or early life exposure to persistent organic pollutants (POP) such as polychlorinated biphenyls (PCB) is associated with increased risk of ADHD occurrence. While PCB exposure is usually attributed to ingestion of contaminated food, recent reports of elevated PCB concentrations in indoor air, especially in schools, raised concern regarding inhalation as an important route of exposure to PCB with consequent effects on neurobehavior. The effects of exposure to air contaminated with Aroclor 1248 or contaminated sediment (SED) from the St. Lawrence River were examined on operant behavior of male and female Sprague-Dawley rats. Data showed that relative to controls, vapor-phase inhalation of PCB, whether from blowing air over Aroclor 1248 or from blowing air over sediment contaminated with PCB, resulted in hyperactivity and impatience in rats, more pronounced in males than females. These results are consistent with the hypothesis that inhalation of PCB may contribute to behavioral abnormalities in children.
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Affiliation(s)
- John P Lombardo
- a Department of Psychology , SUNY College at Cortland , Cortland , New York , USA
| | - David F Berger
- a Department of Psychology , SUNY College at Cortland , Cortland , New York , USA
| | | | - David O Carpenter
- c Institute for Health and the Environment, University at Albany , Rensselaer , New York , USA
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