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Dvoršćak M, Živančev J, Jagić K, Buljovčić M, Antić I, Đurišić-Mladenović N, Klinčić D. Contamination levels, influencing factors, and risk assessment of polybrominated diphenyl ethers in house dust of northern Serbia. Environ Sci Pollut Res Int 2024; 31:25033-25045. [PMID: 38466382 DOI: 10.1007/s11356-024-32836-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/05/2024] [Indexed: 03/13/2024]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of compounds that, due to their applications, are considered mainly indoor contaminants. To obtain the first information about the presence of PBDEs in Serbia, dust samples (n = 50) were collected in settlements in the northern Serbian province of Vojvodina. The selected/target congeners (BDE-28, 47, 99, 100, 153, 154, and 183) were extracted from house dust by microwave-assisted extraction technique, and purified extracts were analyzed on a dual-column gas chromatograph with micro-electron capture detectors. A wide range of ΣPBDEs was detected (0.295 to 394 ng g-1 dust), which reflects large differences in contamination among the examined homes. For the majority of samples (72%), ΣPBDEs were lower than 5 ng g-1 indicating that people living in Vojvodina province are exposed to low concentrations of PBDEs present in their households. Based on principal component analysis (PCA), balcony areas and age of the house positively correlate with the PBDE congeners with higher detection frequencies (≥ 50%), namely, with BDE-99, BDE-153, and BDE-183. Statistically significant positive correlation (p < 0.01) was obtained for BDE-99 and the number of household's members. Estimated daily intakes (EDItot) were calculated for ingestion and dermal absorption of dust for two age groups-adults and toddlers. These are the first data on PBDE status in the area of the Western Balkan, and the health risk assessment indicates that PBDE levels obtained in household dust do not pose a risk for human health.
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Affiliation(s)
- Marija Dvoršćak
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, Zagreb, Croatia
| | - Jelena Živančev
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar cara Lazara 1, 21 000, Novi Sad, Serbia
| | - Karla Jagić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, Zagreb, Croatia
| | - Maja Buljovčić
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar cara Lazara 1, 21 000, Novi Sad, Serbia
| | - Igor Antić
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar cara Lazara 1, 21 000, Novi Sad, Serbia.
| | - Nataša Đurišić-Mladenović
- University of Novi Sad, Faculty of Technology Novi Sad, Bulevar cara Lazara 1, 21 000, Novi Sad, Serbia
| | - Darija Klinčić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, Zagreb, Croatia
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Jin Y, Chi J, LoMonaco K, Boon A, Gu H. Recent Review on Selected Xenobiotics and Their Impacts on Gut Microbiome and Metabolome. Trends Analyt Chem 2023; 166:117155. [PMID: 37484879 PMCID: PMC10361410 DOI: 10.1016/j.trac.2023.117155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
As it is well known, the gut is one of the primary sites in any host for xenobiotics, and the many microbial metabolites responsible for the interactions between the gut microbiome and the host. However, there is a growing concern about the negative impacts on human health induced by toxic xenobiotics. Metabolomics, broadly including lipidomics, is an emerging approach to studying thousands of metabolites in parallel. In this review, we summarized recent advancements in mass spectrometry (MS) technologies in metabolomics. In addition, we reviewed recent applications of MS-based metabolomics for the investigation of toxic effects of xenobiotics on microbial and host metabolism. It was demonstrated that metabolomics, gut microbiome profiling, and their combination have a high potential to identify metabolic and microbial markers of xenobiotic exposure and determine its mechanism. Further, there is increasing evidence supporting that reprogramming the gut microbiome could be a promising approach to the intervention of xenobiotic toxicity.
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Affiliation(s)
- Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Jinhua Chi
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Kaelene LoMonaco
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Alexandria Boon
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
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Gu C, Jin Z, Fan X, Ti Q, Yang X, Sun C, Jiang X. Comparative evaluation and prioritization of key influences on biodegradation of 2,2',4,4'-tetrabrominated diphenyl ether by bacterial isolate B. xenovorans LB400. J Environ Manage 2023; 331:117320. [PMID: 36696759 DOI: 10.1016/j.jenvman.2023.117320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/08/2023] [Accepted: 01/15/2023] [Indexed: 06/17/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a class of persistent organic pollutants being widely distributed and harmful to human health and wildlife, and the development of sustainable rehabilitation strategies including microbial degradation is of great concern. Although the increasing number of bacteria, especially the broad-spectrum and potent aerobes have been isolated for the efficient removal of PBDEs, the external influences and the corresponding influential mechanism on biodegradation are not fully understood yet. Given the wide-spectrum biodegradability of aerobic bacterial isolate, B. xenovorans LB400 for PBDEs, the dual impacts of many pivotal factors including pH, temperature, presence of dissolved organic matter (DOM) and cadmium ion etc. were comprehensively revealed on biodegradation of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47). Due to the structural resemblance and stimulation of specific enzyme activity in bacteria, the biphenyl as substrates showed the greater capacity than non-aromatic compounds in improving biodegradation. The individual adaptation to neutrality and cultivation at about 30 °C was beneficial for biodegradation since the bacterial cellular viability and enzyme activity was mostly preserved. Although it was possibly good for the induction of hormesis and favorable to enhance the permeability or bioavailability of pollutant, the exceeding increase of Cd2+ or DOM may not give the profitable increase of biodegradation yet for the detrimental effect. For biodegradation, the mechanistic relationship that took account of the integrative correlation with the influential factors was artfully developed using partial least square (PLS) regression technique. Relative to the most significant influence of culture time and initial concentration of BDE-47, the larger relevance of other factors primarily marked as pH and DOM was consecutively shown after the quantitative prioritization. This may not only help understand the influential mechanism but provide a prioritizing regulation strategy for biodegradation of BDE-47. The PLS-derived relationship was validated with the certain predictability in biodegradation, and could be used as an alternative to accelerate a priori evaluation of suitability or improve the feasibility of such bacteria in remediation of PBDEs in the environment.
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Affiliation(s)
- Chenggang Gu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Zhihua Jin
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiuli Fan
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qingqing Ti
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xinglun Yang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China
| | - Xin Jiang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China.
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Gu C, Wang L, Jin Z, Fan X, Gao Z, Yang X, Sun C, Jiang X. Congener-specificity, dioxygenation dependency and association with enzyme binding for biodegradation of polybrominated diphenyl ethers by typical aerobic bacteria: Experimental and theoretical studies. Chemosphere 2023; 314:137697. [PMID: 36586449 DOI: 10.1016/j.chemosphere.2022.137697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/27/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of organic pollutants that have attracted much concerns of scientific community over the ubiquitous distribution, chemical persistence and toxicological risks in the environment. Though a great number of aerobic bacteria have been isolated for the rapid removal of PBDEs, the knowledge about biodegradation characteristics and mechanism is less provided yet. Herein, the congener-specificity of aerobic biodegradation of PBDEs by typical bacteria, i.e. B. xenovorans LB400 was identified with the different biodegradation kinetics, of which the changes were largely hinged on the bromination pattern. The more bromination isomerically at ortho-sites other than meta-sites or the single bromination at one of aromatic rings might always exert the positive effect. The biodegradation of PBDEs should be thermodynamically constrained to some extent because the calculated Gibbs free energy changes of initial dioxygenation by quantum chemical method increased with the increase of bromination. Within the transition state theory, the high correlativity between the apparent biodegradation rates and Gibbs free energy changes implied the predominance and rate-limiting character of initial dioxygenation, while the regioselectivity of dioxygenation at the ortho/meta-sites was also manifested for the more negative charge population. The molecular binding with the active domain of dioxygenase BphA1 in aerobe was firstly investigated using docking approach. As significantly illustrated with the positive relationship, the higher binding affinity with BphA1 should probably signify the more rapid biodegradation. Besides the edge-on π-π stacking of PBDEs with F227 or Y277 and π-cation formulation with histidines (H233, H239) in BphA1, the reticular hydrophobic contacts appeared as the major force to underpin the high binding affinity and rapid biodegradation of PBDEs. Overall, the experimental and theoretical results would not only help understand the aerobic biodegradation mechanism, but facilitate enhancing applicability or strategy development of engineering bacteria for bioremediation of PBDEs in the environment.
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Affiliation(s)
- Chenggang Gu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China.
| | - Lei Wang
- Nanjing Audit University Jinshen College, Nanjing, 210042, China
| | - Zhihua Jin
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiuli Fan
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhengyuan Gao
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinglun Yang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, China
| | - Xin Jiang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of the Chinese Academy of Sciences, Beijing, 100049, China
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Petrová Š, Soudek P. Ecotoxicity Study of Additives Composed of Zinc and Boron. Toxics 2022; 10:795. [PMID: 36548628 PMCID: PMC9782054 DOI: 10.3390/toxics10120795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
The high use of additives containing zinc borate and their limited solubility in water both lead to its persistence and accumulation in biological systems. On the other hand, soluble forms of boron are easily available to plant roots and are taken up by plants. There are no ecotoxicological data available for zinc borate, the industrial utilization of which is widespread. Therefore, the potential toxicity of zinc borate and its dissociated compounds was evaluated. Based on two different ecotoxicology tests, their effect on plant growth was studied. Firstly, the impact on Lemna minor growth was investigated, including the effect on pigment content. Secondly, the inhibition of the root growth of higher plant species Sinapis alba (mustard), Lactuca sativa (lettuce) and Trifolium pretense (clover) was measured. The growth inhibition test on L. minor was more complex and sensitive compared to the plant seed germination test. Already low concentrations (10 mg/L) of ZnO, B2O3 and Zn3BO6 led to a decrease in frond growth and to an inhibition of the conversion of chlorophyll a to chlorophyll b. These results suggested that the stress caused by these additives caused damage to the photosynthetic apparatus. The highest inhibition of frond growth was detected in fronds treated with B2O3 (92-100%). In ZnO and Zn3BO6, the inhibition of frond growth was between 38 and 77%, with Zn3BO6 being slightly more toxic. In the seed germination test, the most sensitive species was lettuce, the growth of which was inhibited by 57, 83 and 53% in ZnO, B2O3 and Zn3BO6 treatments, respectively. However, the inhibitory effect on each plant was different. In lettuce and clover, the seed germination and root elongation decreased with increasing element concentrations. In contrast, in mustard, low concentrations of ZnO and Zn3BO6 supported the growth of roots. For that reason, more complex tests are essential to evaluate the additive toxicity in the environment.
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Shin HM, Oh J, J. Schmidt R, N. Pearce E. Prenatal Exposure to Per- and Polyfluoroalkyl Substances, Maternal Thyroid Dysfunction, and Child Autism Spectrum Disorder. Endocrinol Metab (Seoul) 2022; 37:819-829. [PMID: 36415960 PMCID: PMC9816503 DOI: 10.3803/enm.2022.1598] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 10/25/2022] [Indexed: 11/24/2022] Open
Abstract
Autism spectrum disorder (ASD), with its high economic and societal costs, is a growing public health concern whose prevalence has risen steadily over the last two decades. Although actual increased incidence versus improved diagnosis remains controversial, the increased prevalence of ASD suggests non-inherited factors as likely contributors. There is increasing epidemiologic evidence that abnormal maternal thyroid function during pregnancy is associated with increased risk of child ASD and other neurodevelopmental disorders. Prenatal exposure to endocrine-disrupting chemicals such as per- and polyfluoroalkyl substances (PFAS) is known to disrupt thyroid function and can affect early brain development; thus, thyroid dysfunction is hypothesized to mediate this relationship. The concept of a potential pathway from prenatal PFAS exposure through thyroid dysfunction to ASD etiology is not new; however, the extant literature on this topic is scant. The aim of this review is to evaluate and summarize reports with regard to potential mechanisms in this pathway.
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Affiliation(s)
- Hyeong-Moo Shin
- Department of Environmental Science, Baylor University, Waco, TX, USA
- Corresponding author: Hyeong-Moo Shin. Department of Environmental Science, Baylor University, One Bear Place #97266, Waco, TX 76798, USA Tel: +1-254-710-7627, Fax: +1-254-710-3409 E-mail:
| | - Jiwon Oh
- Department of Public Health Sciences, University of California, Davis, CA, USA
| | - Rebecca J. Schmidt
- Department of Public Health Sciences, University of California, Davis, CA, USA
- UC Davis MIND (Medical Investigations of Neurodevelopmental Disorders) Institute, Sacramento, CA, USA
| | - Elizabeth N. Pearce
- Section of Endocrinology, Diabetes, and Nutrition, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
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Xin X, Chen B, Péquin B, Song P, Yang M, Song X, Zhang B. Binary toxicity of polystyrene nanoplastics and polybrominated diphenyl ethers to Arctic Cyanobacteria under ambient and future climates. Water Res 2022; 226:119188. [PMID: 36323199 DOI: 10.1016/j.watres.2022.119188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/22/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Cyanobacteria are the predominant biota in the Arctic. Interactive effects on Arctic cyanobacteria between climate-change-shifting parameters and anthropogenic contaminants are largely unknown. We utilized a fractional factorial experiment and Arctic cyanobacteria Pseudanabaena biceps Strain PCCC_O-153 to capture the complexity of interacting climate factors, nano-polystyrene (nano-PS) and 2,2´,4,4´-tetrabromodipenyl ether (BDE-47). The short-term binary toxicity of nano-PS and BDE-47 was then examined through experiments, toxicity units, and reference models. The toxic mechanism was further revealed through biochemical analyses and multivariate statistics. We found that BDE-47 and nano-PS had more hazardous effects than changing climate conditions. The mixture had antagonistic effects on PCCC_O-153, attributing to the aggregation of nano-PS, the adsorption of BDE-47, and the wrapping of both contaminants by released extracellular polymeric substances. Binary toxicity was caused by the chain reactions triggered by combining individual contaminants. Total protein was a sensitive target and positively correlated to chlorophyll pigment. Oxidative stress for the mixture mainly resulted from the presence of nano-PS. This is the first study to access the hazardous effects of a mixture of anthropogenic contaminants on Arctic cyanobacteria under ambient and future climates.
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Affiliation(s)
- Xiaying Xin
- Department of Civil Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada; Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3×5, Canada.
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3×5, Canada
| | - Bérangère Péquin
- Natural Resource Sciences, McGill University, Ste-Anne-de-Bellevue, QC H9×3V9, Canada
| | - Pei Song
- Institute of Green and Low-Carbon Eco-Environment Technology, CNCEC Lang, Zheng Environmental Protection Technology Co., Ltd, Xi'an, Shannxi 710065, China
| | - Min Yang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3×5, Canada
| | - Xing Song
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3×5, Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL A1B 3×5, Canada.
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Kupsco A, Sjödin A, Cowell W, Jones R, Oberfield S, Wang S, Hoepner LA, Gallagher D, Baccarelli AA, Goldsmith J, Rundle AG, Herbstman JB. Prenatal exposure to polybrominated diphenyl ethers and BMI Z-scores from 5 to 14 years. Environ Health 2022; 21:82. [PMID: 36076289 PMCID: PMC9454187 DOI: 10.1186/s12940-022-00893-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/27/2022] [Indexed: 05/18/2023]
Abstract
BACKGROUND Polybrominated diphenyl ethers (PBDEs) are flame-retardant compounds widely used in household products until phase out in 2004. PBDEs are endocrine disruptors and are suggested to influence signaling related to weight control. Prenatal exposures to PBDEs may alter childhood adiposity, yet few studies have examined these associations in human populations. METHODS Data were collected from a birth cohort of Dominican and African American mother-child pairs from New York City recruited from 1998 to 2006. PBDE congeners BDE-47, - 99, - 100, and - 153 were measured in cord plasma (ng/μL) and dichotomized into low (< 80th percentile) and high (>80th percentile) exposure categories. Height and weight were collected at ages 5, 7, 9, 11, and an ancillary visit from 8 to 14 years (n = 289). Mixed-effects models with random intercepts for participant were used to assess associations between concentrations of individual PBDE congeners or the PBDE sum and child BMI z-scores (BMIz). To assess associations between PBDEs and the change in BMIz over time, models including interactions between PBDE categories and child age and (child age)2 were fit. Quantile g-computation was used to investigate associations between BMIz and the total PBDE mixture. Models were adjusted for baseline maternal covariates: ethnicity, age, education, parity, partnership status, and receipt of public assistance, and child covariates: child sex and cord cholesterol and triglycerides. RESULTS The prevalence of children with obesity at age 5 was 24.2% and increased to 30% at age 11. Neither cord levels of individual PBDEs nor the total PBDE mixture were associated with overall BMIz in childhood. The changes in BMIz across childhood were not different between children with low or high PBDEs. Results were similar when adjusting for postnatal PBDE exposures. CONCLUSIONS Prenatal PBDE exposures were not associated with child growth trajectories in a cohort of Dominican and African American children.
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Affiliation(s)
- Allison Kupsco
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W 168th St. Room 1105, New York, NY, 10032, USA.
| | - Andreas Sjödin
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Whitney Cowell
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Richard Jones
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Sharon Oberfield
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Department of Pediatrics, New York-Presbyterian Morgan Stanley Children's Hospital, New York, NY, USA
| | - Shuang Wang
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Lori A Hoepner
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W 168th St. Room 1105, New York, NY, 10032, USA
- Department of Environmental and Occupational Health Sciences, School of Public Health, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Dympna Gallagher
- Nutrition Obesity Research Center, Columbia University Irving Medical Center, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W 168th St. Room 1105, New York, NY, 10032, USA
| | - Jeff Goldsmith
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Andrew G Rundle
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Julie B Herbstman
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W 168th St. Room 1105, New York, NY, 10032, USA
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Cai M, Zhou J, Hao T, Du K. Tolerance of phyllospheric Wickerhamomyces anomalus to BDE-3 and heavy metals. Environ Sci Pollut Res Int 2022; 29:56555-56561. [PMID: 35347617 DOI: 10.1007/s11356-022-19798-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Few research have focused on the potential microorganism and gene resources for plant resistance to polybrominated diphenyl ether (PBDE) and heavy metal (HM) co-contamination. The purpose of this study was to investigate the impact of phyllospheric Wickerhamomyces anomalus bioremediation ability on PBDE and HM co-contamination. The results showed that the toleration capability of W. anomalus to cadmium (Cd2+) was higher than that to chromium (Cr) or 4-bromodiphenyl ether (BDE-3) contamination. The threshold levels of W. anomalus tolerance to BDE-3, Cd2+, and Cr were 30 mg/L, 500 mg/L, 30 mg/L, respectively. The use of the higher concentration of BDE-3 (30 mg/L) as a carbon source may improve tolerance to Cd2+ and Cr (10 mg/L Cd2+ and 10 mg/L Cr). Overexpression of Wapdr15 gene of ABCG subfamily from W. anomalus improved the tolerance to BDE-3 (10 mg/mL) and Cd2+ (0.5 mg/mL) significantly in transgenic tobacco lines. The synergism effect of BDE-3 and Cd2+ stress existed similarly in W. anomalus and transgenic lines. The findings suggest that W. anomalus should be taken into account for providing an efficient method in improving crops' tolerance during PBDE and HM co-contamination in soil.
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Affiliation(s)
- Man Cai
- College of Forestry, Hebei Agricultural University, Baoding, 071000, China
- Key Laboratory of Tree Species Germplasm Resources and Forest Protection of Hebei Province, Hebei Agricultural University, 2596 Lekai South Road, Baoding, 071000, China
| | - Jian Zhou
- College of Forestry, Hebei Agricultural University, Baoding, 071000, China
| | - Tian Hao
- College of Forestry, Hebei Agricultural University, Baoding, 071000, China
| | - Kejiu Du
- College of Forestry, Hebei Agricultural University, Baoding, 071000, China.
- Key Laboratory of Tree Species Germplasm Resources and Forest Protection of Hebei Province, Hebei Agricultural University, 2596 Lekai South Road, Baoding, 071000, China.
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Harhoosh AA, Yurtov EV, Bakhareva NI. Flame Retardant Strategies and the Physical Barrier Effect of Nanoparticles to Improve the Thermal Performance of a Polymer. Theor Found Chem Eng 2022. [DOI: 10.1134/s0040579522040133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gripp L, da Silva Carreira R, Moreira D, de Lemos Scofield A, Massone CG. Method development and application to sediments for multi-residue analysis of organic contaminants using gas chromatography-tandem mass spectrometry. Anal Bioanal Chem. [DOI: 10.1007/s00216-022-04148-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/25/2022] [Accepted: 05/20/2022] [Indexed: 11/26/2022]
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Bao J, Hou L, Wang Y, Zhang Y, Qiao J, Su M, Jin J, Chen L. Effect of Affinity between Dechlorane Plus and Human Serum Albumin on Its Serum Concentration in a General Population. Environ Sci Technol 2022; 56:2511-2518. [PMID: 35113545 DOI: 10.1021/acs.est.1c07525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Dechlorane Plus (DP) has been detected in human serum around the world. Determining how DP binds to human serum albumin (HSA) could improve our understanding of the effects of DP in humans. The results of a fluorescence titration experiment indicated that DP binds to HSA at the interface between domains IIA and IIB, and HSA has more affinity for anti-DP than syn-DP. The DP concentrations in serum from 33 people living in Wuxi City, China, were determined in five consecutive years (2012-2016). The total concentrations of the two DP isomers were 1.73-16.3 ng·g-1 lipid weight (mean 4.7 ng·g-1 lipid weight). No clear increasing or decreasing temporal trend was found in the DP concentrations in serum over the study period. The affinity between DP and HSA will increase as the amount of fatty acids combined with HSA increases. This explained the syn-DP and anti-DP concentrations in serum being higher for overweight people than for normal weight people. Ethanol can occupy the DP binding sites on HSA. This explained the syn-DP and anti-DP concentrations being lower for alcoholic people than for nonalcoholic people.
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Affiliation(s)
- Junsong Bao
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Lei Hou
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
- Beijing Pollution Source Management Affairs Center, Beijing 100089, China
| | - Ying Wang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
- Engineering Research Center of Food Environment and Public Health, Beijing 100081, China
| | - Yanli Zhang
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Jinyan Qiao
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Mai Su
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
| | - Jun Jin
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China
- Engineering Research Center of Food Environment and Public Health, Beijing 100081, China
| | - Limei Chen
- Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
- Research Base for Environment and Health in Wuxi, Chinese Center for Disease Control and Prevention, Wuxi 214023, China
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Tölgyessy P, Nagyová S, Roško V, Hucko P. Simultaneous determination of short-chain chlorinated paraffins and other classes of persistent organic pollutants in sediment by gas chromatography‒tandem mass spectrometry after ultrasonic solvent extraction combined with stir bar sorptive extraction. Chem Pap 2021; 75:5645-5661. [DOI: 10.1007/s11696-021-01738-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Gu C, Fan X, Ti Q, Yang X, Bian Y, Sun C, Jiang X. Mechanistic insight into hydroxylation of 2,2',4,4'-tetrabromodiphenyl ether during biodegradation by typical aerobic bacteria: Experimental and computational studies. J Hazard Mater 2021; 416:126132. [PMID: 34492924 DOI: 10.1016/j.jhazmat.2021.126132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/29/2021] [Accepted: 05/12/2021] [Indexed: 06/13/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of persistent pollutants in the environment. Though aerobic biodegradation of PBDEs have been extensively studied, the involved hydroxylation mechanism decisive for whole biotransformation is not clear yet. During the effective biodegradation of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) by B. xenovorans LB400, the depletion of endogenous ∙OH by scavenger could bring about the significant decrease of biodegradation efficiency whereas ·O2- was nearly not influential. Given the importance of ∙OH in hydroxylation, the reaction mechanisms along major pathways of electrophilic addition and hydrogen abstraction were theoretically examined by density functional theory (DFT). For the less demand of activation energy, the relative preference of electrophilic addition was shown at aromatic C3-site. When the secondary reaction was considered after addition at C4-site, the barrierless association of ∙OH at C3-site and deprotonation by H2O was validated as the energetically-favorable pathway that may cause dihydroxylation of BDE-47 into 3,4-dihydroxyl-BDE-17. The electrophilic addition followed by seconary barrierless trans-association of ∙OH and then dehydration seemed favorable for monohydroxylation as regards energetic barrier merely up to 194.01 kJ mol-1, while the hydrogen abstraction by ∙OH from C5-site was more privileged actually. The theoretical insights would help well understand the hydroxylation mechanism of PBDEs by aerobes.
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Affiliation(s)
- Chenggang Gu
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Xiuli Fan
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qingqing Ti
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xinglun Yang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yongrong Bian
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, PR China
| | - Xin Jiang
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China; University of the Chinese Academy of Sciences, Beijing 100049, PR China
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15
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Zhao X, Liu L, Pang J. Hair as a noninvasive biomarker of human exposure to the endocrine disruptors polybrominated diphenyl ethers: a meta-analysis. Environ Monit Assess 2021; 193:371. [PMID: 34059982 DOI: 10.1007/s10661-021-09155-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Several epidemiological studies with small sample sizes have suggested that hair is a promising biomarker of exposure to polybrominated diphenyl ethers (PBDEs). We reanalyzed the data from human studies to investigate correlations between the concentrations of the five main congeners in hair and serum. We searched medical article databases for articles that reported correlation coefficients for concentrations of PBDEs in hair and serum. The methodological quality of the included articles was fully assessed. Then, the correlation coefficients were used for our analysis. Seven epidemiological studies were included in our analysis using the random-effects model. Significant positive relationships were found between the concentrations of the five congeners (BDE28, BDE47, BDE99, BDE100, BDE209) in serum and hair. The results of this study show that hair may be a promising biomarker for the biomonitoring human exposure to the five congeners of PBDEs within a certain detection range. Studies with a larger sample size are needed to explore the detection range.
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Affiliation(s)
- Xuemin Zhao
- Department of Internal Medicine, Chengde Medical University, Chengde, 067000, People's Republic of China.
| | - Linfei Liu
- Sericultural Research Institute, Chengde Medical University, Chengde, 067000, People's Republic of China
| | - Jianhui Pang
- Department of Internal Medicine, Chengde Medical University, Chengde, 067000, People's Republic of China
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16
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Solazzo G, Wu H, Laue HE, Brennan K, Knox JM, Gillet V, Bovin A, Abdelouahab N, Posner J, Raffanello E, Pieper S, Bowman FD, Drake D, Baccarelli AA, Takser L. The association between prenatal concentrations of polybrominated diphenyl ether and child cognitive and psychomotor function. Environ Epidemiol 2021; 5:e156. [PMID: 34131617 DOI: 10.1097/EE9.0000000000000156] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/09/2021] [Indexed: 11/25/2022] Open
Abstract
Previous studies suggest a negative association between prenatal polybrominated diphenyl ethers (PBDEs) exposure and child cognitive and psychomotor development. However, the timing of the relationship between PBDE exposure and neurodevelopment is still unclear. We examined the association between PBDE concentration at two different prenatal times (early and late pregnancy) and cognitive function in children 6-8 years of age. Methods Eight hundred pregnant women were recruited between 2007 and 2009 from Sherbrooke, Canada. Four PBDE congeners (BDE-47, -99, -100, and -153) were measured in maternal plasma samples collected during early pregnancy (12 weeks of gestation) and at delivery. At 6-8 years of age, 355 children completed a series of subtests spanning multiple neuropsychologic domains: verbal and memory skills were measured using the Wechsler Intelligence Scale for Children, Fourth Edition; visuospatial processing using both Wechsler Intelligence Scale for Children, Fourth Edition and Neuropsychological Assessment second edition; and attention was assessed through the Test of Everyday Attention for Children. Additionally, parents completed subtests from the Developmental Coordination Disorder Questionnaire to measure child motor control. We used linear regression and quantile g-computation models to estimate associations of PBDE congener concentrations and psychologic test scores. Results In our models, no significant associations were detected between PBDE mixture and any of the child psychologic scores. BDE-99 concentration at delivery was nominally associated with higher scores on short-term and working memory while a decrease in spatial perception and reasoning was nominally associated with higher BDE-100 concentration at delivery. Conclusion Overall, our results did not show a significant association between PBDEs and child cognitive and motor development.
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Alabi OA, Adeoluwa YM, Huo X, Xu X, Bakare AA. Environmental contamination and public health effects of electronic waste: an overview. J Environ Health Sci Eng 2021; 19:1209-27. [PMID: 34150306 DOI: 10.1007/s40201-021-00654-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/31/2021] [Indexed: 02/05/2023]
Abstract
Purpose In recent years, electronic waste has become the fastest growing waste stream globally with potential deleterious environmental and public health effects from its hazardous constituents. This review aims at providing an up-to-date information on the environmental and public health effects of e- wastes, and also identify research gaps that could form basis of further innovative studies on this important subject. Methods We carried out literature survey using several search engines. All available literature which reported directly on environmental contamination of air, soil, and water by e-wastes, and their effects on exposed plants, animals, and humans were used in other to generate an updated information. Results High production volume coupled with indiscriminate disposal and informal recycling has made electronic waste (e-waste) to become a global public and environmental health issue. E-waste is made up of different hazardous substances such as heavy metals and persistent organic pollutants with the capacity to contaminate the environment if processed or recycled inappropriately. Humans and animals become exposed to e-waste constituents via ingestion, inhalation, and dermal contact. Several health effects have been linked to e-wastes. The most susceptible were children, pregnant women, and workers in primitive recycling sites. Generation of e-waste is predicted to increase drastically in the next decade with the potential complex interactive effects of its constituents. Conclusion This review is an up-to-date assessment of studies and reports on e-waste environmental contamination and public health effects. The review has shown that e-waste contains constituents that caused adverse environmental effects and toxicity to the biota. However, there is an enormous data gap between exposure quantification and possible health effects. More studies are needed to elucidate and provide holistic information on environmental and public health dangers posed by e-waste constituents.
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18
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Sokal A, Jarmakiewicz-Czaja S, Tabarkiewicz J, Filip R. Dietary Intake of Endocrine Disrupting Substances Presents in Environment and Their Impact on Thyroid Function. Nutrients 2021; 13:867. [PMID: 33800806 PMCID: PMC7998837 DOI: 10.3390/nu13030867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 12/11/2022] Open
Abstract
According to the available data, environmental pollution is a serious problem all over the world. Between 2015 and 2016, pollution was responsible for approximately nine million deaths worldwide. They also include endocrine disrupting chemicals (EDCs) that can interfere with the functioning of the thyroid gland. They are characterized by high persistence in the environment. These substances can enter the body through the gastrointestinal tract, respiratory system, as well as contact with the skin and overcome the placental barrier. EDC can be found in food, water, and personal care products. They can get into food from the environment and as a result of their migration to food products and cosmetics from packaging. EDCs can disrupt the functioning of the thyroid gland through a number of mechanisms, including disrupting the activation of thyroid receptors and the expression of genes that are related to the metabolism, synthesis, and transport of thyroid hormones (HT). There is a need to strengthen the food safety policy that aimed at the use of appropriate materials in direct contact with food. At the same time, an important action is to reduce the production of all waste and, when possible, use biodegradable packaging, which may contribute to the improvement of the quality of the entire ecosystem and the health of food, thus reducing the risk of developing thyroid diseases.
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Affiliation(s)
- Aneta Sokal
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland;
| | - Sara Jarmakiewicz-Czaja
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland;
| | - Jacek Tabarkiewicz
- Institute of Medicine, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (J.T.); (R.F.)
| | - Rafał Filip
- Institute of Medicine, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (J.T.); (R.F.)
- Department of Gastroenterology with IBD Unit, Clinical Hospital No. 2, 35-301 Rzeszow, Poland
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Silva JF, Moreira BP, Rato L, de Lourdes Pereira M, Oliveira PF, Alves MG. Is Technical-Grade Chlordane an Obesogen? Curr Med Chem 2021; 28:548-568. [PMID: 31965937 DOI: 10.2174/0929867327666200121122208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/09/2019] [Accepted: 09/26/2019] [Indexed: 11/22/2022]
Abstract
The prevalence of obesity has tripled in recent decades and is now considered an alarming public health problem. In recent years, a group of endocrine disruptors, known as obesogens, have been directly linked to the obesity epidemic. Its etiology is generally associated with a sedentary lifestyle, a high-fat diet and genetic predisposition, but environmental factors, such as obesogens, have also been reported as contributors for this pathology. In brief, obesogens are exogenous chemical compounds that alter metabolic processes and/or energy balance and appetite, thus predisposing to weight gain. Although this theory is still recent, the number of compounds with suspected obesogenic activity has steadily increased over the years, though many of them remain a matter of debate. Technical-grade chlordane is an organochlorine pesticide widely present in the environment, albeit at low concentrations. Highly lipophilic compounds can be metabolized by humans and animals into more toxic and stable compounds that are stored in fat tissue and consequently pose a danger to the human body, including the physiology of adipose tissue, which plays an important role in weight regulation. In addition, technical-grade chlordane is classified as a persistent organic pollutant, a group of chemicals whose epidemiological studies are associated with metabolic disorders, including obesity. Herein, we discuss the emerging roles of obesogens as threats to public health. We particularly discuss the relevance of chlordane persistence in the environment and how its effects on human and animal health provide evidence for its role as an endocrine disruptor with possible obesogenic activity.
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Affiliation(s)
- Juliana F Silva
- Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, P.O. Box 4050-313, Porto, Portugal
| | - Bruno P Moreira
- Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, P.O. Box 4050-313, Porto, Portugal
| | - Luís Rato
- Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilha, Portugal
| | - Maria de Lourdes Pereira
- Department of Medical Sciences & CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro F Oliveira
- Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, P.O. Box 4050-313, Porto, Portugal
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, P.O. Box 4050-313, Porto, Portugal
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Xiao H, Mei N, Chi Q, Wang X. Comprehensive binding analysis of polybrominated diphenyl ethers and aryl hydrocarbon receptor via an integrated molecular modeling approach. Chemosphere 2021; 262:128356. [PMID: 33182092 DOI: 10.1016/j.chemosphere.2020.128356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/07/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are often suspected to activate the signal transduction pathway of aryl hydrocarbon receptor (AhR), a ligand-activated transcription factor, for the induction of toxicity. Hence, the binding property of PBDEs with AhR is assumed to be associated with the ligand-dependent activation of AhR that may introduce many drug-metabolizing enzymes of genes encoding. However, the binding mechanism and the structural effect of PBDEs on their binding properties of AhR still need to be unraveled for toxicology research. A comprehensive study of the PBDEs-AhR binding mechanism was investigated using an integrated molecular modeling approach with two-dimensional quantitative structure-activity relationships (2D-QSAR), three-dimensional QSAR (3D-QSAR), and molecular docking simulation. Molecular docking revealed the differences in binding domains among 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-AhR complex and two PBDE-AhR complexes. A 2D-QSAR model was developed to analyze the overall structural effects of PBDEs on the binding affinity of AhR. It provided an insight into major physico-chemical properties by multiple linear regression based on genetic algorithm with reasonable results. The 3D-QSAR modeling discovered the detailed interaction features of binding sites, configurations and interaction fields of AhR with different PBDE ligands. This study demonstrated that the descriptors of Smin69 and MoRSEC15 were related to electronic properties and had a great effect on the relative binding affinities. The position of Br substitutions exhibited a significant influence on the interactions between AhR and PBDEs, including halogen interaction, π-S interaction, π-π stacking interaction, and hydrophobic effect. This integrated molecular modeling approach provided a comprehensive analysis of the structural effects of PBDEs on their binding properties with AhR at molecular level.
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Affiliation(s)
- Huaming Xiao
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei, 430074, China
| | - Nan Mei
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei, 430074, China
| | - Quan Chi
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei, 430074, China
| | - Xian Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, Hubei, 430074, China; School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, China.
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21
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Zafar MI, Kali S, Ali M, Riaz MA, Naz T, Iqbal MM, Masood N, Munawar K, Jan B, Ahmed S, Waseem A, Niazi MBK. Dechlorane Plus as an emerging environmental pollutant in Asia: a review. Environ Sci Pollut Res Int 2020; 27:42369-42389. [PMID: 32864714 DOI: 10.1007/s11356-020-10609-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
Dechlorane Plus (DP) is an unregulated, highly chlorinated flame retardant. It has been manufactured from past 40 years but its presence in the environment was initially reported in 2006. Later, it has been found in various biotic and abiotic environmental matrices. However, little attention has been paid to monitor its presence in Asia. Many studies have reported the occurrence of DP in the environment of Asia, yet the data are scarce, and studies are limited to few regions. The objective of present review is to summarize the occurrence, distribution, and toxicity of this ubiquitous pollutant in various environmental matrices (biotic and abiotic). DP has also been reported in the areas with no emission sources, which proves its long-range transport. Moreover, urbanization and industrialization also affect the distribution of DP, i.e., high levels of DP have been found in urban areas relative to the rural. Tidal movement also incorporates in transport of DP across the aquatic system. Further, bioaccumulation trend of DP in various tissues is kidney > liver > muscle tissues, whereas, blood brain barrier resists its accumulation in brain tissues. Additionally, gender-based accumulation trends revealed high DP levels in females in comparison to males due to strong metabolism of males. Furthermore, methodological aspects and instrumental analysis used in previous studies have also been summarized here. However, data on biomagnification in aquatic ecosystem and bioaccumulation of DP in terrestrial food web are still scarce. Toxicity behavior of syn-DP and anti-DP is still unknown which might gain the interest for future studies.
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Affiliation(s)
- Mazhar Iqbal Zafar
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Sundas Kali
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Mehtabidah Ali
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Muhammad Asam Riaz
- Department of Entomology, University of Georgia, Athens, GA, 30602-2603, USA
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Tayyaba Naz
- Environmental Science Research Group, School of Veterinary and Life Sciences, Murdoch University, Perth, Australia
- Environmental Stress Physiology Laboratory, Institute of Soil and Environmental, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Mazhar Iqbal
- Laboratory of Analytical Chemistry and Applied Eco-chemistry, Department of Applied Analytical and Physical Chemistry, Ghent University, Ghent, Belgium
- Soil and Water Testing Laboratory, Department of Agriculture, Government of Punjab, Chiniot, Pakistan
| | - Noshin Masood
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Kashif Munawar
- Plant Protection Department, College of Food and Agricultural Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Bilal Jan
- Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sohail Ahmed
- Department of Agricultural Entomology, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Amir Waseem
- Department of Chemistry, Faculty of Natural Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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Shen M, Kang C, Song T, Lu H, Wang Y, Yu B, Wang R, Cheng J. Content and health risk assessment of heavy metals and polybrominated diphenyl ethers in fish from Songhua Lake (Jilin City), China. Environ Sci Pollut Res Int 2020; 27:40848-40856. [PMID: 32677011 DOI: 10.1007/s11356-020-10067-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Levels of heavy metals and polybrominated diphenyl ethers (PBDEs) were determined in fishes sampled in Jilin Songhua Lake, China. Concentrations and congener profiles of these contaminants varied by fish type. The highest concentrations of Zn, Cu, Mn, and Cd were found in three omnivorous fish (Carassius carassius, Hypomesus olidus, and Hemiculter leucisculus). The highest concentrations of Ni, Cr, and Hg were found in Silurus asotus and Hemibarbus maculatus which are two kinds of carnivorous fish. The minimum total concentration of the seven PBDEs of fish was 0.093 ng/g wet weight (ww) in Ctenopharyngodon idellus, while the maximum, 0.342 ng/g ww, was detected in Aristichthys nobilis. Of all the congeners, BDE 28 and 47 were dominant. The estimated daily intake (EDI) of these metals and PBDEs via consuming the fishes was estimated to be 1.159-10.121 μg/kg bw/day and 0.046-0.597 ng/kg bw/day, respectively. The total hazard quotients (THQs) of both types of pollutants were far below 1, indicating that the health risks of these pollutants were low for the people who consumed the fish species from the Songhua Lake.
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Affiliation(s)
- Mengnan Shen
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China.
| | - Chunyu Kang
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Tiehong Song
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Hai Lu
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Yuehong Wang
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Bowen Yu
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Ru Wang
- Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, No. 5088 Xincheng Ave, Changchun, 130118, China
| | - Jie Cheng
- Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, 310012, China.
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Kratofil MA, Ylitalo GM, Mahaffy SD, West KL, Baird RW. Life history and social structure as drivers of persistent organic pollutant levels and stable isotopes in Hawaiian false killer whales (Pseudorca crassidens). Sci Total Environ 2020; 733:138880. [PMID: 32446048 DOI: 10.1016/j.scitotenv.2020.138880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/15/2020] [Accepted: 04/19/2020] [Indexed: 06/11/2023]
Abstract
False killer whales are long-lived, slow to mature, apex predators, and therefore susceptible to bioaccumulation of persistent organic pollutants (POPs). Hawaiian waters are home to three distinct populations: pelagic; Northwestern Hawaiian Islands (NWHI) insular; and main Hawaiian Islands (MHI) insular. Following a precipitous decline over recent decades, the MHI population was listed as "endangered" under the Endangered Species Act in 2012. This study assesses the risk of POP exposure to these populations by examining pollutant concentrations and ratios from blubber samples (n = 56) related to life history characteristics and MHI social clusters. Samples were analyzed for PCBs, DDTs, PBDEs, and some organochlorine pesticides. Skin samples (n = 52) were analyzed for stable isotopes δ13C and δ15N to gain insight into MHI false killer whale foraging ecology. Pollutant levels were similar among populations, although MHI whales had a significantly higher mean ratio of DDTs/PCBs than NWHI whales. The ∑PCB concentrations of 28 MHI individuals (68%) sampled were equal to or greater than suggested thresholds for deleterious health effects in marine mammals. The highest POP values among our samples were found in four stranded MHI animals. Eight of 24 MHI adult females have not been documented to have given birth; whether they have yet to reproduce, are reproductive senescent, or are experiencing reproductive dysfunction related to high POP exposure is unknown. Juvenile/sub-adults had significantly higher concentrations of certain contaminants than those measured in adults, and may be at greater risk of negative health effects during development. Multivariate analyses, POP ratios, and stable isotope ratios indicate varying risk of POP exposure, foraging locations and potentially prey items among MHI social clusters. Our findings provide invaluable insight into the ongoing risk POPs pose to the MHI population's viability, as well as consideration of risk for the NWHI and pelagic stocks.
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Affiliation(s)
| | - Gina M Ylitalo
- Environmental and Fisheries Sciences Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Association, 2725 Montlake Boulevard East, Seattle, WA 98112, USA.
| | - Sabre D Mahaffy
- Cascadia Research Collective, 218½ W. 4th Avenue, Olympia, WA 98501, USA.
| | - Kristi L West
- Hawai'i Institute of Marine Biology, PO Box 1346, Kaneohe, HI 96744, USA; Human Nutrition Food and Animal Sciences, College of Tropical Agriculture and Human Resources, 1955 East West Road, Ag Sci 216, Honolulu, HI 96822, USA.
| | - Robin W Baird
- Cascadia Research Collective, 218½ W. 4th Avenue, Olympia, WA 98501, USA; Hawai'i Institute of Marine Biology, PO Box 1346, Kaneohe, HI 96744, USA.
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Menéndez-Pedriza A, Jaumot J. Interaction of Environmental Pollutants with Microplastics: A Critical Review of Sorption Factors, Bioaccumulation and Ecotoxicological Effects. Toxics 2020; 8:E40. [PMID: 32498316 DOI: 10.3390/toxics8020040] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/07/2020] [Accepted: 05/29/2020] [Indexed: 01/04/2023]
Abstract
Microplastics have become one of the leading environmental threats due to their persistence, ubiquity and intrinsic toxic potential. The potential harm that microplastics impose on ecosystems varies from direct effects (i.e., entanglement and ingestion) to their ability to sorb a diversity of environmental pollutants (e.g., heavy metals, persistent organic compounds or pharmaceuticals). Therefore, the toxicological assessment of the combined effects of microplastics and sorbed pollutants can produce in biota is one of the hottest topics on the environmental toxicology field. This review aims to clarify the main impacts that this interaction could have on ecosystems by (1) highlighting the principal factors that influence the microplastics sorption capacities; (2) discussing the potential scenarios in which microplastics may have an essential role on the bioaccumulation and transfer of chemicals; and (3) reviewing the recently published studies describing toxicological effects caused by the combination of microplastics and their sorbed chemicals. Finally, a discussion regarding the need for a new generation of toxicological studies is presented.
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25
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Gu C, Cai J, Fan X, Bian Y, Yang X, Xia Q, Sun C, Jiang X. Theoretical investigation of AhR binding property with relevant structural requirements for AhR-mediated toxicity of polybrominated diphenyl ethers. Chemosphere 2020; 249:126554. [PMID: 32213394 DOI: 10.1016/j.chemosphere.2020.126554] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 06/10/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are more frequently suspected with the induction of toxicity via signal transduction pathway of cytosolic aryl hydrocarbon receptor (AhR), the initial binding to which is assumed to be an essential prerequisite during the ligand-dependent activation. However, the AhR binding property and associated toxicity of PBDEs is yet to be clearly known for lacking insights into the structural requirements at molecular level. To understand the AhR binding property of PBDEs, the ligand binding domain (LBD) of AhR was simulatively developed on homologous protein after basic validation of geometrical rationality and the binding interaction profile was visually described using molecular docking approach. For AhR binding, the offset or edge-on π-π stackings with aromatic motifs including Phe289, Phe345 and His285 were shown to be structurally required whereas the electrostatic attraction validated for AhR binding to dioxins might be less effective for 2,2',3,4,4'-pentabromodiphenyl ether (BDE-85). Besides the demands of less steric hindrance from alanines and weak formulation of hydrogen bonds, the dispersion force through large contact and polarization of S-π electrons seemed to be impactful when BDE-85 were closer to Cys327, Met334 or Met342. With theoretical computation of AhR binding energies, the more significant correlativity with bioassays was derived especially for the lowly/moderately brominated congeners, and could be used to predict the AhR binding affinity on certain degree. The informative results would thus not only help well understand the molecular basis of AhR-mediated toxicity but give an approach for accelerative evaluation of AhR binding and toxicity of PBDEs.
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Affiliation(s)
- Chenggang Gu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China.
| | - Jun Cai
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China; University of the Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Xiuli Fan
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China; University of the Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yongrong Bian
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Xinglun Yang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Qiying Xia
- Shandong Province Key Laboratory of Soil Conservation and Environmental Protection, Linyi University, Linyi, 276005, PR China.
| | - Cheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing, 210023, PR China
| | - Xin Jiang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China.
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Hurley S, Goldberg D, Park JS, Petreas M, Bernstein L, Anton-Culver H, Neuhausen SL, Nelson DO, Reynolds P. A breast cancer case-control study of polybrominated diphenyl ether (PBDE) serum levels among California women. Environ Int 2019; 127:412-419. [PMID: 30954728 PMCID: PMC6522143 DOI: 10.1016/j.envint.2019.03.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 05/13/2023]
Abstract
PURPOSE Polybrominated diphenyl ethers (PBDEs) are among the most persistent and pervasive global environmental contaminants. Their toxic and endocrine-disrupting properties have made them a focus of concern for breast cancer. Our objective was to evaluate the risk of breast cancer associated with serum PBDE levels in a case-control study nested within the California Teachers Study. METHODS Participants were 902 women with invasive breast cancer (cases) and 936 with no such diagnosis (controls) who provided 10 mL of blood and were interviewed between 2011 and 2015. Blood samples were collected from cases an average of 35 months after diagnosis. PBDEs were measured in serum using automated solid phase extraction and gas chromatography/high resolution mass spectrometry. Statistical analyses were restricted to the three congeners with detection frequencies ≥75%: 2,2',4,4'-tetrabromodiphenyl ether (BDE-47), 2,2',4,4',6-pentabromodiphenyl ether (BDE-100), and 2,2',4,4',5,5'-hexabromodiphenyl ether (BDE-153). Unconditional logistic regression was used to estimate multivariable-adjusted odds ratios (ORs) and their 95% confidence intervals (CI) for each BDE congener, adjusting for serum lipids and other potential confounders. RESULTS The OR for each of the three BDE congeners was close to unity with a CI that included one. Analyses stratified by menopausal status, tumor hormone responsiveness, BMI, and changes in body weight yielded similarly null results. CONCLUSIONS Our findings provide no evidence that serum levels of BDE-47, BDE-100 or BDE-153 are associated with breast cancer risk. These results should be interpreted in the context of study limitations which include the reliance on PBDE measurements that may not represent pre-diagnostic, early-life or chronic exposures and a lack of information on genetic polymorphisms and other factors which may affect endogenous estrogen levels.
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Affiliation(s)
- Susan Hurley
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; Cancer Prevention Institute of California, Berkeley, CA, USA.
| | - Debbie Goldberg
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; Cancer Prevention Institute of California, Berkeley, CA, USA
| | - June-Soo Park
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, CA, USA
| | - Myrto Petreas
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, CA, USA
| | - Leslie Bernstein
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Hoda Anton-Culver
- Department of Epidemiology, School of Medicine, University of California Irvine, Irvine, CA, USA
| | - Susan L Neuhausen
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - David O Nelson
- Cancer Prevention Institute of California, Berkeley, CA, USA
| | - Peggy Reynolds
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA; Cancer Prevention Institute of California, Berkeley, CA, USA; Stanford University School of Medicine, Department of Health Research and Policy, Stanford, CA, USA
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27
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Cowell WJ, Sjödin A, Jones R, Wang Y, Wang S, Whyatt RM, Factor-Litvak P, Bradwin G, Hassoun A, Oberfield S, Herbstman JB. Pre- and Postnatal Polybrominated Diphenyl Ether Concentrations in Relation to Thyroid Parameters Measured During Early Childhood. Thyroid 2019; 29:631-641. [PMID: 30907253 PMCID: PMC6533780 DOI: 10.1089/thy.2018.0417] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background: Penta-brominated diphenyl ethers (PentaBDEs) are endocrine-disrupting chemicals that structurally resemble thyroid hormones and were widely used as flame retardants in household consumer products from 1975 to 2004. Polybrominated diphenyl ethers (PBDEs) cross the placenta, and evidence suggests that for many children, body burdens may peak during the toddler years. This study aimed to understand the impact of exposure timing by examining both pre- and postnatal exposure to BDE-47, the predominant penta-brominated diphenyl ether congener detected in humans, in relation to thyroid hormone parameters measured during early childhood. Methods: The Columbia Center for Children's Environmental Health Mothers and Newborns Study is a prospective birth cohort of African American and Dominican maternal-child pairs. Pregnant women were recruited from two prenatal clinics in Northern Manhattan and the South Bronx between 1998 and 2006. Participants included 158 children with (i) plasma PBDE concentrations measured at birth and in the toddler years (age 2-3 years), and (ii) serum thyroid parameters measured at three and/or five years of age. Outcomes included concentrations of serum thyrotropin, free thyroxine, and total thyroxine. Results: Children with high exposure to BDE-47 during the prenatal period (-17% [confidence interval -29 to -2]) or toddler age (-19% [confidence interval -31 to -5]) had significantly lower geometric mean thyrotropin levels compared to children with low BDE-47 exposure throughout early life. Associations with thyroxine were also inverse; however, they did not reach statistical significance at the p = 0.05 level. Sex-stratified models suggest associations with postnatal exposure may be stronger among boys compared to girls. Conclusions: The thyroid regulatory system may be sensitive to BDE-47 during pre- and postnatal periods.
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Affiliation(s)
- Whitney J. Cowell
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, New York
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Andreas Sjödin
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Richard Jones
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Ya Wang
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | - Shuang Wang
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | - Robin M. Whyatt
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, New York
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
| | - Pam Factor-Litvak
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Gary Bradwin
- Department of Laboratory Medicine, Harvard Medical School and Boston Children's Hospital, Boston, Massachusetts
| | - Abeer Hassoun
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Department of Pediatrics, New York-Presbyterian Morgan Stanley Children's Hospital, New York, New York
| | - Sharon Oberfield
- Division of Pediatric Endocrinology, Diabetes and Metabolism, Department of Pediatrics, New York-Presbyterian Morgan Stanley Children's Hospital, New York, New York
| | - Julie B. Herbstman
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, New York
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York
- Address correspondence to: Julie Herbstman, PhD, Columbia Center for Children's Environmental Health, 12th Floor, Mailman School of Public Health, 722 West 168th Street, New York, NY 10032
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Zhang S, Ireland D, Sipes NS, Behl M, Collins EMS. Screening for neurotoxic potential of 15 flame retardants using freshwater planarians. Neurotoxicol Teratol 2019; 73:54-66. [PMID: 30943442 DOI: 10.1016/j.ntt.2019.03.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 10/27/2022]
Abstract
Asexual freshwater planarians are an attractive invertebrate model for high-throughput neurotoxicity screening, because they possess multiple quantifiable behaviors to assess distinct neuronal functions. Planarians uniquely allow direct comparisons between developing and adult animals to distinguish developmentally selective effects from general neurotoxicity. In this study, we used our automated planarian screening platform to compare the neurotoxicity of 15 flame retardants (FRs), consisting of representative phased-out brominated (BFRs) and replacement organophosphorus FRs (OPFRs). OPFRs have emerged as a proposed safer alternative to BFRs; however, limited information is available on their health effects. We found 11 of the 15 FRs (3/6 BFRs, 7/8 OPFRs, and Firemaster 550) caused adverse effects in both adult and developing planarians with similar nominal lowest-effect-levels for BFRs and OPFRs. This suggests that replacement OPFRs are comparably neurotoxic to the phased-out compounds. BFRs were primarily systemically toxic, whereas OPFRs, except Tris(2-chloroethyl) phosphate, shared a behavioral phenotype in response to noxious heat at sublethal concentrations, indicating specific neurotoxic effects. We found this behavioral phenotype was correlated with cholinesterase inhibition, thus linking behavioral outcomes to molecular targets. By directly comparing effects on adult and developing planarians, we further found that one BFR (3,3',5,5'-Tetrabromobisphenol A) caused a developmental selective defect. Together, these results demonstrate that our planarian screening platform yields high content data from various behavioral and morphological endpoints, allowing us to distinguish selective neurotoxic effects and effects specific to the developing nervous system. Ten of these 11 bioactive FRs were previously found to be bioactive in other models, including cell culture and alternative animal models (nematodes and zebrafish). This level of concordance across different platforms emphasizes the urgent need for further evaluation of OPFRs in mammalian systems.
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Affiliation(s)
- Siqi Zhang
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Danielle Ireland
- Division of Cell and Developmental Biology, University of California San Diego, La Jolla, CA 92093, USA; Department of Biology, Swarthmore College Swarthmore, PA 19081, USA
| | - Nisha S Sipes
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Mamta Behl
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, 27709, USA
| | - Eva-Maria S Collins
- Division of Cell and Developmental Biology, University of California San Diego, La Jolla, CA 92093, USA; Department of Physics, University of California San Diego, La Jolla, CA 92093, USA; Department of Biology, Swarthmore College Swarthmore, PA 19081, USA.
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29
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Ohajinwa CM, Van Bodegom PM, Xie Q, Chen J, Vijver MG, Osibanjo OO, Peijnenburg WJGM. Hydrophobic Organic Pollutants in Soils and Dusts at Electronic Waste Recycling Sites: Occurrence and Possible Impacts of Polybrominated Diphenyl Ethers. Int J Environ Res Public Health 2019; 16:E360. [PMID: 30696044 DOI: 10.3390/ijerph16030360] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 11/17/2022]
Abstract
Concerns about the adverse consequences of informal electronic waste (e-waste) recycling is increasing, because e-waste contains some hazardous substances such as polybrominated diphenyl ethers (PBDEs) which is used as flame retardants in electronics. There is dearth of information on the concentrations of PBDEs and the pattern of distribution at the various e-waste recycling sites in Nigeria. This study therefore measured the concentrations of 13 PBDE congeners, in top soils (0–10 cm) and in various dust samples from different e-waste recycling sites (burning, dismantling, repair). PBDE concentrations at e-waste sites were compared with the concentrations in samples from corresponding control sites in three study locations in Nigeria (Lagos, Ibadan, and Aba). There were significant differences in the level of PBDEs congeners between each of the e-waste recycling sites and the corresponding control sites. The levels of PBDEs at the e-waste recycling sites exceeded the levels at the controls sites by a factor of 100 s to 1000 s. In general, PBDE concentrations at the e-waste sites decreased with the intensity of the e-waste recycling activities: burning sites > dismantling sites > repair sites > control sites. Our results suggest that the informal e-waste recycling has negative impacts on the enviroment and human health.
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Cowell WJ, Sjödin A, Jones R, Wang Y, Wang S, Herbstman JB. Temporal trends and developmental patterns of plasma polybrominated diphenyl ether concentrations over a 15-year period between 1998 and 2013. J Expo Sci Environ Epidemiol 2019; 29:49-60. [PMID: 29618764 PMCID: PMC6429949 DOI: 10.1038/s41370-018-0031-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/10/2018] [Accepted: 02/13/2018] [Indexed: 05/29/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) were used extensively as flame retardants in furniture containing polyurethane foam until they were phased out of use, beginning in 2004. We examined temporal changes in plasma PBDE concentrations from 1998 to 2013 and characterized patterns of exposure over the early lifecourse among 334 children (903 samples) between birth and 9 years. We examined time trends by regressing PBDE concentration on year of sample collection in age-adjusted models and characterized developmental trajectories using latent class growth analysis (LCGA). Controlling for age, BDE-47 concentrations decreased 5% (95% confidence interval (CI): -9, -2) per year between 1998 and 2013. When considering only postnatal samples, this reduction strengthened to 13% (95% CI: -19, -9). Findings for BDE-99, 100 and 153 were similar, except that BDE-153 decreased to a lesser extent when both prenatal and postnatal samples were considered (-2%, 95% CI: -7, 0). These findings suggest that, on average, pentaBDE body burdens have decreased since the 2004 phase-out of these chemicals. When examining developmental period, PBDE concentrations peaked during toddler years for the majority of children, however, our observation of several unique trajectories suggests that a single measure may not accurately reflect exposure to PBDEs throughout early life.
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Affiliation(s)
- Whitney J Cowell
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Andreas Sjödin
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, 30341, USA
| | - Richard Jones
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, 30341, USA
| | - Ya Wang
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Shuang Wang
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | - Julie B Herbstman
- Columbia Center for Children's Environmental Health, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA.
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA.
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31
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Tiwari M, Sahu SK, Bhangare RC, Ajmal PY, Pandit GG. Polybrominated diphenyl ethers (PBDEs) in core sediments from creek ecosystem: occurrence, geochronology, and source contribution. Environ Geochem Health 2018; 40:2587-2601. [PMID: 29790055 DOI: 10.1007/s10653-018-0125-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
The levels of 15 polybrominated diphenyl ether (PBDE) congeners in grab sediment and sediment cores from the Thane creek were monitored for their spatial and temporal distribution. Total PBDE (ΣPBDE) concentrations in grab sediments were ranging from 15.98 to 132.72 ng g-1 dry weight. BDE-209 was the most abundant congener with percentage contribution in the range of 19-35% to total PBDEs. Total PBDE show multimode concentration with depth in sediment, among which mode at a depth of 10 cm is predominant. Results of sediment core also indicates PBDEs were enormously used in last two decades in surrounding area. Sedimentation rate at the creek was also evaluated using Pb210 dating technique. Average percentage contribution of commercial penta-BDE (fP), octa-BDE (fO), and deca-BDE (fD) to the profile found in sediments collected across Thane creek were 24 ± 5, 5 ± 1 and 69 ± 7% (p < 0.001) respectively. Levels of all measured PBDEs in sediment met with guideline values except for the penta-BDE (total, BDE-99 and BDE-100) at few locations.
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Affiliation(s)
- Mahesh Tiwari
- Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Sanjay Kumar Sahu
- Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India
| | - Rahul C Bhangare
- Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - P Y Ajmal
- Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Gauri Girish Pandit
- Environmental Monitoring and Assessment Section, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India.
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400094, India.
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32
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Morais CM, Shore RF, Pereira MG, Martin FL. Assessing Binary Mixture Effects from Genotoxic and Endocrine Disrupting Environmental Contaminants Using Infrared Spectroscopy. ACS Omega 2018; 3:13399-13412. [PMID: 30411037 PMCID: PMC6217637 DOI: 10.1021/acsomega.8b01916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/04/2018] [Indexed: 05/15/2023]
Abstract
Benzo[a]pyrene (B[a]P), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) are persistent contaminants and concern has arisen over co-exposure of organisms when the chemicals exist in mixtures. Herein, attenuated total reflection Fourier transform infrared spectroscopy was used to identify biochemical alterations induced in cells by single and binary mixtures of these environmental chemicals. It was also investigated as a method to identify if interactions are occurring in mixtures and as a possible tool to predict mixture effects. Mallard fibroblasts were treated with single and binary mixtures of B[a]P, PCB126, PCB153, BDE47, and BDE209. Comparison of observed spectra from cells treated with binary mixtures with expected additive spectra, which were created from individual exposure spectra, indicated that in many areas of the spectrum, less-than-additive binary mixture effects may occur. However, possible greater-than-additive alterations were identified in the 1650-1750 cm-1 lipid region and may demonstrate a common mechanism of B[a]P and PCBs or PBDEs, which can enhance toxicity in mixtures.
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Affiliation(s)
- Camilo
L. M. Morais
- School
of Pharmacy and Biomedical Sciences, University
of Central Lancashire (UCLan), Preston PR1 2HE, U.K.
| | - Richard F. Shore
- Centre
of Ecology & Hydrology, Lancaster Environment
Centre, Lancaster LA1 4AP, U.K.
| | - M. Glória Pereira
- Centre
of Ecology & Hydrology, Lancaster Environment
Centre, Lancaster LA1 4AP, U.K.
| | - Francis L. Martin
- School
of Pharmacy and Biomedical Sciences, University
of Central Lancashire (UCLan), Preston PR1 2HE, U.K.
- E-mail:
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Mazzariol S, Centelleghe C, Cozzi B, Povinelli M, Marcer F, Ferri N, Di Francesco G, Badagliacca P, Profeta F, Olivieri V, Guccione S, Cocumelli C, Terracciano G, Troiano P, Beverelli M, Garibaldi F, Podestà M, Marsili L, Fossi MC, Mattiucci S, Cipriani P, De Nurra D, Zaccaroni A, Rubini S, Berto D, de Quiros YB, Fernandez A, Morell M, Giorda F, Pautasso A, Modesto P, Casalone C, Di Guardo G. Multidisciplinary studies on a sick-leader syndrome-associated mass stranding of sperm whales (Physeter macrocephalus) along the Adriatic coast of Italy. Sci Rep 2018; 8:11577. [PMID: 30068967 PMCID: PMC6070578 DOI: 10.1038/s41598-018-29966-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 07/21/2018] [Indexed: 11/20/2022] Open
Abstract
Mass strandings of sperm whales (Physeter macrocephalus) are rare in the Mediterranean Sea. Nevertheless, in 2014 a pod of 7 specimens stranded alive along the Italian coast of the Central Adriatic Sea: 3 individuals died on the beach after a few hours due to internal damages induced by prolonged recumbency; the remaining 4 whales were refloated after great efforts. All the dead animals were genetically related females; one was pregnant. All the animals were infected by dolphin morbillivirus (DMV) and the pregnant whale was also affected by a severe nephropathy due to a large kidney stone. Other analyses ruled out other possible relevant factors related to weather conditions or human activities. The results of multidisciplinary post-mortem analyses revealed that the 7 sperm whales entered the Adriatic Sea encountering adverse weather conditions and then kept heading northward following the pregnant but sick leader of the pod, thereby reaching the stranding site. DMV infection most likely played a crucial role in impairing the health condition and orientation abilities of the whales. They did not steer back towards deeper waters, but eventually stranded along the Central Adriatic Sea coastline, a real trap for sperm whales.
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Affiliation(s)
- Sandro Mazzariol
- Department of Comparative Biomedicine and Food Science, University of Padova, Padova, Italy
| | - Cinzia Centelleghe
- Department of Comparative Biomedicine and Food Science, University of Padova, Padova, Italy.
| | - Bruno Cozzi
- Department of Comparative Biomedicine and Food Science, University of Padova, Padova, Italy
| | - Michele Povinelli
- Department of Comparative Biomedicine and Food Science, University of Padova, Padova, Italy
| | - Federica Marcer
- Department of Animal Medicine, Production and Health, University of Padova, Padova, Italy
| | - Nicola Ferri
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Gabriella Di Francesco
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Pietro Badagliacca
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Francesca Profeta
- University of Teramo, Faculty of Veterinary Medicine, Località Piano d'Accio, 64100, Teramo, Italy
| | | | | | - Cristiano Cocumelli
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana M. Aleandri, Rome, Italy
| | - Giuliana Terracciano
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana M. Aleandri, Rome, Italy
| | - Pasquale Troiano
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | - Matteo Beverelli
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
| | | | | | - Letizia Marsili
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy
| | - Maria Cristina Fossi
- Department of Physical Science, Earth and Environment, University of Siena, Siena, Italy
| | - Simonetta Mattiucci
- Department of Public Health and Infectious Diseases, University La Sapienza, Rome, Italy
| | - Paolo Cipriani
- Department of Public Health and Infectious Diseases, University La Sapienza, Rome, Italy
| | - Daniele De Nurra
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | | | - Silva Rubini
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Ferrara, Italy
| | | | - Yara Beraldo de Quiros
- Institute of Animal Health and Food Safety, Universitad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Antonio Fernandez
- Institute of Animal Health and Food Safety, Universitad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Maria Morell
- Institute for Neurosciences of Montpellier (Inserm UMR 1051), Montpellier, France
| | - Federica Giorda
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Val d'Aosta, Torino, Italy
| | - Alessandra Pautasso
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Val d'Aosta, Torino, Italy
| | - Paola Modesto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Val d'Aosta, Torino, Italy
| | - Cristina Casalone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Val d'Aosta, Torino, Italy
| | - Giovanni Di Guardo
- University of Teramo, Faculty of Veterinary Medicine, Località Piano d'Accio, 64100, Teramo, Italy
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Oliveira KJ, Chiamolera MI, Giannocco G, Pazos-Moura CC, Ortiga-Carvalho TM. Thyroid Function Disruptors: from nature to chemicals. J Mol Endocrinol 2018; 62:JME-18-0081. [PMID: 30006341 DOI: 10.1530/jme-18-0081] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/03/2018] [Accepted: 07/12/2018] [Indexed: 12/11/2022]
Abstract
The modern concept of thyroid disruptors includes man-made chemicals and bioactive compounds from food that interfere with any aspect of the hypothalamus-pituitary-thyroid axis, thyroid hormone biosynthesis and secretion, blood and transmembrane transport, metabolism and local action of thyroid hormones. This review highlights relevant disruptors that effect populations through their diet: directly from food itself (fish oil and polyunsaturated fatty acids, pepper, coffee, cinnamon and resveratrol/grapes), through vegetable cultivation (pesticides) and from containers for food storage and cooking (bisphenol A, phthalates and polybrominated diphenyl ethers). Due to the vital role of thyroid hormones during every stage of life, we review effects from the gestational period through to adulthood, including evidence from in vitro studies, rodent models, human trials and epidemiological studies.
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Affiliation(s)
- Karen J Oliveira
- K Oliveira, Laboratório de Fisiologia Endócrina e Metabologia, Physiology and Pharmacology, Federal Fluminense University, Niteroi, Brazil
| | - Maria Izabel Chiamolera
- M Chiamolera, Endocrinology, Universidade Federal de Sao Paulo Escola Paulista de Medicina, Sao Paulo, Brazil
| | - Gisele Giannocco
- G Giannocco, Laboratório de Endocrinologia Molecular e Translacional, Universidade Federal de Sao Paulo Escola Paulista de Medicina, Sao Paulo, Brazil
| | - Carmen Cabanelas Pazos-Moura
- C Pazos-Moura, Laboratório de Endocrinologia Molecular, Instituto de Biofisica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tania Maria Ortiga-Carvalho
- T Ortiga-Carvalho, Laboratório de Endocrinologia Translacional, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Leijs MM, Koppe JG, Olie K, de Voogt P, van Aalderen WMC, Ten Tusscher GW. Exposure to Environmental Contaminants and Lung Function in Adolescents-Is There a Link? Int J Environ Res Public Health 2018; 15:ijerph15071352. [PMID: 29954136 PMCID: PMC6069052 DOI: 10.3390/ijerph15071352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/15/2018] [Accepted: 06/21/2018] [Indexed: 01/20/2023]
Abstract
Dioxins (polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDF)), polychlorinated biphenyls (PCBs), and brominated flame retardants (BDEs) are well known toxic environmental contaminants. Their possible role in the incidence of respiratory disease is not yet well understood. Previous studies showed a negative effect on lung function in relation to prenatal and lactational dioxin exposure in pre-pubertal children. Effects of BDE exposure on the lung function have not previously been evaluated. As part of a longitudinal cohort study, the effects of perinatal dioxin (PCDD/F) exposure and serum PCDD/F, dl-PCB, and BDE levels on lung function in adolescents were assessed using spirometry, a body box, and diffusion measurements. Thirty-three children (born between 1986 and 1991) consented to the current follow-up study. Prenatal, lactational, and current dioxin, PCB, and BDE concentrations were determined using GC-MS. No relationship was seen between prenatal and lactational dioxin exposure, nor with current PCB body burden, and lung function. Indications of increasing airway obstruction were seen in relation to increasing current BDE exposure. This is a novel finding and certainly warrants further research.
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Affiliation(s)
- Marike M Leijs
- Department of Paediatrics and Neonatology, Emma Children's Hospital Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands.
- Ecobaby Foundation, Hollandstraat 6, 3634 AT Loenersloot, The Netherlands.
- Department of Dermatology and Allergology, RTWH University Aachen, Pauwelstrasse 30, 52074 Aachen, Germany.
| | - Janna G Koppe
- Department of Paediatrics and Neonatology, Emma Children's Hospital Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands.
- Ecobaby Foundation, Hollandstraat 6, 3634 AT Loenersloot, The Netherlands.
| | - Kees Olie
- IBED/ESPM, University of Amsterdam, 1090 GE Amsterdam, The Netherlands.
| | - Pim de Voogt
- IBED/ESPM, University of Amsterdam, 1090 GE Amsterdam, The Netherlands.
- KWR Watercycle Research Institute, P.O. Box 1072, 3430 BB Nieuwegein, The Netherlands.
| | - Wim M C van Aalderen
- Department of Paediatrics and Neonatology, Emma Children's Hospital Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands.
| | - Gavin W Ten Tusscher
- Department of Paediatrics and Neonatology, Westfriesgasthuis, Maelsonstraat 3, 1624 NP Hoorn, The Netherlands.
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Zhang L, Jin Y, Han Z, Liu H, Shi L, Hua X, Doering JA, Tang S, Giesy JP, Yu H. Integrated in silico and in vivo approaches to investigate effects of BDE-99 mediated by the nuclear receptors on developing zebrafish. Environ Toxicol Chem 2018; 37:780-787. [PMID: 29027256 DOI: 10.1002/etc.4000] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 06/11/2017] [Accepted: 10/08/2017] [Indexed: 06/07/2023]
Abstract
One of the most abundant polybrominated diphenyl ethers (PBDEs) is 2,2',4,4',5-pentabromodiphenyl ether (BDE-99), which persists and potentially bioaccumulates in aquatic wildlife. Previous studies in mammals have shown that BDE-99 affects development and disrupts certain endocrine functions through signaling pathways mediated by nuclear receptors. However, fewer studies have investigated the potential of BDE-99 to interact with nuclear receptors in aquatic vertebrates such as fish. In the present study, interactions between BDE-99 and nuclear receptors were investigated by in silico and in vivo approaches. This PBDE was able to dock into the ligand-binding domain of zebrafish aryl hydrocarbon receptor 2 (AhR2) and pregnane X receptor (PXR). It had a significant effect on the transcriptional profiles of genes associated with AhR or PXR. Based on the developed cytoscape of all zebrafish genes, it was also inferred that AhR and PXR could interact via cross-talk. In addition, both the in silico and in vivo approaches found that BDE-99 affected peroxisome proliferator-activated receptor alpha (PPARα), glucocorticoid receptor, and thyroid receptor. Collectively, our results demonstrate for the first time detailed in silico evidence that BDE-99 can bind to and interact with zebrafish AhR and PXR. These findings can be used to elaborate the molecular mechanism of BDE-99 and guide more objective environmental risk assessments. Environ Toxicol Chem 2018;37:780-787. © 2017 SETAC.
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Affiliation(s)
- Li Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Yaru Jin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Zhihua Han
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
- Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, Nanjing, Jiangsu, China
| | - Hongling Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Laihao Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoxue Hua
- Nanjing Institute of Environmental Science, Ministry of Environmental Protection of China, Nanjing, Jiangsu, China
| | - Jon A Doering
- Toxicology Centre, University of Saskatchewan, Saskatoon, Canada
| | - Song Tang
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Canada
| | - John P Giesy
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
- Toxicology Centre, University of Saskatchewan, Saskatoon, Canada
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Hongxia Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu, China
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Hudson-Hanley B, Irvin V, Flay B, MacDonald M, Kile ML. Prenatal PBDE Exposure and Neurodevelopment in Children 7 Years Old or Younger: a Systematic Review and Meta-analysis. CURR EPIDEMIOL REP 2018. [DOI: 10.1007/s40471-018-0137-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kofi ED, Kweku AJ, Kweku CS, Godfred E, Paul OF. Levels of Polybrominated Diphenyl Ethers (PBDEs) in Some Ghanaian Water Body Environments. ACTA ACUST UNITED AC 2018. [DOI: 10.3923/rjes.2018.73.82] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gray JM, Rasanayagam S, Engel C, Rizzo J. State of the evidence 2017: an update on the connection between breast cancer and the environment. Environ Health 2017; 16:94. [PMID: 28865460 PMCID: PMC5581466 DOI: 10.1186/s12940-017-0287-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 07/17/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND In this review, we examine the continually expanding and increasingly compelling data linking radiation and various chemicals in our environment to the current high incidence of breast cancer. Singly and in combination, these toxicants may have contributed significantly to the increasing rates of breast cancer observed over the past several decades. Exposures early in development from gestation through adolescence and early adulthood are particularly of concern as they re-shape the program of genetic, epigenetic and physiological processes in the developing mammary system, leading to an increased risk for developing breast cancer. In the 8 years since we last published a comprehensive review of the relevant literature, hundreds of new papers have appeared supporting this link, and in this update, the evidence on this topic is more extensive and of better quality than that previously available. CONCLUSION Increasing evidence from epidemiological studies, as well as a better understanding of mechanisms linking toxicants with development of breast cancer, all reinforce the conclusion that exposures to these substances - many of which are found in common, everyday products and byproducts - may lead to increased risk of developing breast cancer. Moving forward, attention to methodological limitations, especially in relevant epidemiological and animal models, will need to be addressed to allow clearer and more direct connections to be evaluated.
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Affiliation(s)
- Janet M. Gray
- Department of Psychology and Program in Science, Technology, and Society, Vassar College, 124 Raymond Avenue, Poughkeepsie, NY 12604-0246 USA
| | - Sharima Rasanayagam
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Connie Engel
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Jeanne Rizzo
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
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Walter KM, Lin YP, Kass PH, Puschner B. Association of Polybrominated Diphenyl Ethers (PBDEs) and Polychlorinated Biphenyls (PCBs) with Hyperthyroidism in Domestic Felines, Sentinels for Thyroid Hormone Disruption. BMC Vet Res 2017; 13:120. [PMID: 28468659 PMCID: PMC5415813 DOI: 10.1186/s12917-017-1031-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 04/17/2017] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Hyperthyroidism is the most common endocrine disorder observed in domestic felines; however, its etiology is largely unknown. Two classes of persistent organic pollutants, polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) are known to interfere with thyroid hormone (TH) signaling and regulation; thus, it is postulated that they contribute to the etiopathogenesis of feline hyperthyroidism and pose a risk to humans and other species. In this case-control study, the concentrations of 13 PBDE and 11 PCB congeners were measured by gas chromatography mass spectrometry in serum or plasma samples from 20 hyperthyroid and 31 control cats in order to investigate the association between concentration of PBDE and PCB congeners and feline hyperthyroidism. Logistic regression analysis was used to determine whether elevated concentrations of individual congeners were associated with a higher risk of feline hyperthyroidism. RESULTS Hyperthyroid cats had higher concentrations of four PBDE congeners (BDE17, BDE100, BDE47, and BDE49) and five PCB congeners (PCB131, PCB153, PCB174, PCB180, and PCB196), compared to control cats. In addition, the sum of both PBDE and PCB congener concentrations were elevated in the hyperthyroid group compared to control cats; however, only the increased PCB concentrations were statistically significant. The sum total PBDE concentrations in our feline samples were approximately 50 times greater than concentrations previously reported in human populations from a geographically similar area, whereas sum total PCB concentrations were comparable to those previously reported in humans. CONCLUSIONS These observational findings support the hypothesis that PBDEs and PCBs may contribute to the etiopathogenesis of hyperthyroidism in felines. As domestic house cats are often exposed to higher concentrations of PBDEs than humans, they may serve as sentinels for the risk of TH disruption that these pollutants pose to humans and other species.
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Affiliation(s)
- Kyla M. Walter
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Dr., Davis, CA 95616 USA
| | - Yan-ping Lin
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Dr., Davis, CA 95616 USA
| | - Philip H. Kass
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Dr., Davis, CA 95616 USA
| | - Birgit Puschner
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1089 Veterinary Medicine Dr., Davis, CA 95616 USA
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Zhu Y, Tan YQ, Wang CC, Leung LK. The flame retardant 2,2',4,4'-Tetrabromodiphenyl ether enhances the expression of corticotropin-releasing hormone in the placental cell model JEG-3. Chemosphere 2017; 174:499-505. [PMID: 28189027 DOI: 10.1016/j.chemosphere.2017.01.144] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/23/2017] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are chemicals used as flame retardants in household products. After disposing of these items, PBDEs leach from the products by surface water. BDE-47 is a PBDE congener commonly isolated from contaminated food and is the most studied isomer. The placenta is the major source of hormones during pregnancy, and an elevated level of corticotrophin-releasing hormone (CRH) is associated with premature delivery. In the present study, we examined changes in the placental CRH expression under BDE-47 exposure in the JEG-3 cell model system. These placental cells are derived from human choriocarcinoma. Our result showed that this pollutant induced the CRH mRNA expression at 0.5 nM or above in the cells. A similar trend was observed when CRH peptide was determined by Western analysis in the cell lysates. As previous studies have shown the importance of signal transduction pathways in the gene regulation, the status of some protein kinases in the present study was investigated. The phosphorylated PKCα, JNK, and P38 were increased by the toxicant treatment, and administering the specific inhibitors could counteract the induced CRH expression. It appeared that the signaling transduction pathway of PKC was a significant contributor in the transcriptional regulation. Further study by using Electrophoretic Mobility Shift Assay suggested that AP-2 was the ultimate DNA-binding element for the initiation of gene transcription. Because an untimely increased CRH may compromise fetal development and induce preterm birth, the present study suggested that endocrine changes in pregnancy should be taken into consideration in the next assessment.
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Affiliation(s)
- Yun Zhu
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Yan Qin Tan
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, Li Ka Shing Institute of Health Sciences and School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong
| | - Lai K Leung
- Food and Nutritional Sciences Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong; Biochemistry Programme, School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong.
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Hurley S, Goldberg D, Nelson DO, Guo W, Wang Y, Baek HG, Park JS, Petreas M, Bernstein L, Anton-Culver H, Reynolds P. Temporal Evaluation of Polybrominated Diphenyl Ether (PBDE) Serum Levels in Middle-Aged and Older California Women, 2011-2015. Environ Sci Technol 2017; 51:4697-4704. [PMID: 28304169 PMCID: PMC5526086 DOI: 10.1021/acs.est.7b00565] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In response to health concerns and widespread human exposures, two widely used commercial formulations of polybrominated diphenyl ethers (PBDEs) were banned in the United States in 2005. Initial biomonitoring data have provided early indications of reduced human exposures since these bans took effect. Our objective was to evaluate temporal trends in PBDE serum levels among a population of older California women during a four-year period, beginning approximately five years after these formulations were banned. Automated solid phase extraction and gas chromatography/high resolution mass spectrometry were used to measure PBDE levels in blood collected during 2011-2015 among 1253 women (ages 40-94) participating in the California Teachers Study. Only congeners with detection frequencies (DF) ≥ 75% were included in the present analysis: BDE-47 (DF = 88%); BDE-100 (DF = 78%); and BDE-153 (DF = 80%). Results from age- and race/ethnicity-adjusted linear regression analyses indicated modest, but statistically significant, average annual percent increases in the serum concentrations of all three PBDEs over the four-year study period. While not without limitations, these results, in the context of other biomonitoring data, suggest that earlier reported declines in PBDE levels may have plateaued and may now be starting to increase. Further biomonitoring to ascertain current trends and determinants of population exposures is warranted.
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Affiliation(s)
- Susan Hurley
- Cancer Prevention Institute of California, Berkeley, California 94704, United States
- Corresponding Author: Phone: (510) 608-5189; fax: (510) 666-0693;
| | - Debbie Goldberg
- Cancer Prevention Institute of California, Berkeley, California 94704, United States
| | - David O. Nelson
- Cancer Prevention Institute of California, Berkeley, California 94704, United States
| | - Weihong Guo
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 95812, United States
- Food and Drug Laboratory Branch, California Department of Public Health, Richmond, California 94804, United States
| | - Yunzhu Wang
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 95812, United States
| | - Hyoung-Gee Baek
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 95812, United States
| | - June-Soo Park
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 95812, United States
| | - Myrto Petreas
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 95812, United States
| | - Leslie Bernstein
- Department of Population Sciences, Beckman Research Institute of the City of Hope, Duarte, California 91010, United States
| | - Hoda Anton-Culver
- Department of Epidemiology, School of Medicine, University of California Irvine, Irvine, California 92697, United States
| | - Peggy Reynolds
- Cancer Prevention Institute of California, Berkeley, California 94704, United States
- Stanford University School of Medicine, Department of Health Research and Policy, Stanford, California 94305, United States
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Zhu YJ, Sun D, Yang NE, Ding YS, Feng WB, Hong WJ, Zhu SM, Li YF. Temporal and spatial distributions of PBDEs in atmosphere at Shanghai rural regions, China. Environ Sci Pollut Res Int 2017; 24:10885-10892. [PMID: 28293827 DOI: 10.1007/s11356-017-8646-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 02/16/2017] [Indexed: 06/06/2023]
Abstract
Atmospheric samples were collected using polyurethane foam (PUF) passive air sampling device for every 3 months from June 2012 to May 2013 in Shanghai rural regions in order to investigate the concentrations, profiles, spatial distributions, and seasonal variations of polybrominated diphenyl ethers (PBDEs). Twelve PBDE congeners (BDE-17, BDE-28, BDE-47, BDE-49, BDE-66, BDE-85, BDE-99, BDE-100, BDE-138, BDE-153, BDE-154, and BDE-183) were measured and analyzed by GC-MS. The results showed that detectable PBDEs were examined in all air samples, which indicated that these pollutants are widespread in the research areas. The ∑12PBDE concentrations in Shanghai rural air ranged from 4.49 to 77.5 pg m-3, with mean value up to 26.7 pg m-3. The highest concentration was found at Jinshan sampling site in summer (from June to August in 2012). Furthermore, among the PBDE compounds investigated, the most frequently detected and the major congeners were BDE-17, BDE-28, BDE-47, and BDE-99. And the lower brominated diphenyl ethers (accounting for 75.0%) were the majority of the PBDE congeners. Finally, the result of principal component analysis (PCA) revealed that the lower and higher brominated diphenyl ethers in Shanghai rural regions were emitted from different pollutant sources.
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Affiliation(s)
- Yun-Juan Zhu
- College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, China
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai, China
| | - Dan Sun
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai, China
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Nuo-Er Yang
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Yong-Sheng Ding
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai, China.
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, China.
| | - Wei-Bing Feng
- College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, China
| | - Wen-Jun Hong
- Zhejiang Scientific Research Institute of Transport, Hangzhou, China
| | - Shi-Mao Zhu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai, China
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, China
| | - Yi-Fan Li
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, China
- IJRC-PTS, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
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Genuis SK, Birkholz D, Genuis SJ. Human Excretion of Polybrominated Diphenyl Ether Flame Retardants: Blood, Urine, and Sweat Study. Biomed Res Int 2017; 2017:3676089. [PMID: 28373979 DOI: 10.1155/2017/3676089] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 02/26/2017] [Indexed: 01/17/2023]
Abstract
Commonly used as flame retardants, polybrominated diphenyl ethers (PBDEs) are routinely detected in the environment, animals, and humans. Although these persistent organic pollutants are increasingly recognized as having serious health implications, particularly for children, this is the first study, to our knowledge, to investigate an intervention for human elimination of bioaccumulated PBDEs. Objectives. To determine the efficacy of blood, urine, and perspiration as PBDE biomonitoring mediums; assess excretion of five common PBDE congeners (28, 47, 99, 100, and 153) in urine and perspiration; and explore the potential of induced sweating for decreasing bioaccumulated PBDEs. Results. PBDE congeners were not found in urine samples; findings focus on blood and perspiration. 80% of participants tested positive in one or more body fluids for PBDE 28, 100% for PBDE 47, 95% for PBDE 99, and 90% for PBDE 100 and PBDE 153. Induced perspiration facilitated excretion of the five congeners, with different rates of excretion for different congeners. Conclusion. Blood testing provides only a partial understanding of human PBDE bioaccumulation; testing of both blood and perspiration provides a better understanding. This study provides important baseline evidence for regular induced perspiration as a potential means for therapeutic PBDE elimination. Fetotoxic and reproductive effects of PBDE exposure highlight the importance of further detoxification research.
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Zheng MY, Li XH, Zhang Y, Yang YL, Wang WY, Tian Y. Partitioning of polybrominated biphenyl ethers from mother to fetus and potential health-related implications. Chemosphere 2017; 170:207-215. [PMID: 28006755 DOI: 10.1016/j.chemosphere.2016.11.136] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/23/2016] [Accepted: 11/27/2016] [Indexed: 05/02/2023]
Abstract
Presently, knowledge on the partitioning of polybrominated biphenyl ethers (PBDEs) from mother to fetus and the relationship between PBDE exposure and the levels of thyroid hormones (THs) needs to be extended further. In the present study, we investigated the concentrations of PBDEs in paired mother-fetus samples from 72 pregnant women in Wenling, China. The detection of PBDE concentration suggested that the expectant women living in Wenling for over 20 years might be highly exposed to PBDEs, which is largely ascribed to e-waste recycling activities in the local environment. The median concentration ratios between paired cord serum and maternal serum for higher-brominated BDEs were smaller than those for lower-brominated BDEs (p < 0.05). This result indicated that the placenta could hinder the transfer of PBDEs from mother to fetus, and the hindrance effect increased with higher-brominated congeners. Median ratios of paired placenta vs. maternal serum concentrations varied in a narrow range (0.15-0.25), with significantly lower value for BDE-209 than that for BDE-28 (p < 0.01). The extent of transplacental transfer was larger than that of placental retention for eight BDE congeners (p < 0.01). The concentration of BDE congeners among the paired samples could be fitted by equations, implying that their distribution could be predicted for each other (p < 0.001). There was a significant association between BDE-153 and TT4 levels in maternal serum from Wenling local residents (p < 0.05), suggesting potential implications for fetal development and their mothers' health in e-waste recycling environment. In addition, it was found that the relationship between BDEs and TH levels was likely affected by the exposure duration of the population to PBDEs.
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Affiliation(s)
- Mei-Yun Zheng
- The First People's Hospital of Wenling, Taizhou, 317004, Zhejiang Province, People's Republic of China
| | - Xing-Hong Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environment Sciences, Chinese Academy of Sciences, P.O. Box 2871, 18 Shuangqing Road, Haidian District, Beijing, 100085, People's Republic of China.
| | - Yun Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environment Sciences, Chinese Academy of Sciences, P.O. Box 2871, 18 Shuangqing Road, Haidian District, Beijing, 100085, People's Republic of China; Beijing Technology and Business University, Beijing, 100037, People's Republic of China
| | - You-Lin Yang
- The First People's Hospital of Wenling, Taizhou, 317004, Zhejiang Province, People's Republic of China
| | - Wen-Yue Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center of Eco-Environment Sciences, Chinese Academy of Sciences, P.O. Box 2871, 18 Shuangqing Road, Haidian District, Beijing, 100085, People's Republic of China; Beijing Technology and Business University, Beijing, 100037, People's Republic of China
| | - Yuan Tian
- Beijing Technology and Business University, Beijing, 100037, People's Republic of China
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Vutukuru SS, Ganugapati J, Ganesh V, Atheeksha P, Potti RB. Endocrine disruption by Bisphenol A, polychlorinated biphenyls and polybrominated diphenyl ether, in zebra fish (Danio rerio) model: an in silico approach. Fish Physiol Biochem 2016; 42:1541-1555. [PMID: 27241054 DOI: 10.1007/s10695-016-0239-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/13/2016] [Indexed: 06/05/2023]
Abstract
Endocrine disrupting chemicals may induce adverse health effects in humans and wildlife. Recent studies demonstrate that endocrine disrupting chemicals like Bisphenol A (BPA), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ether (PBDE) affect the reproductive characters shared by wide range of creatures including fish. An attempt was made to evaluate the toxicity of these chemicals on the vitellogenin protein of zebra fish (Danio rerio) using in silico approach. The protein structure of zebra fish vitellogenin was predicted using homology modelling, and the stereochemical quality of the model was validated by Ramachandran plot. The 3-D structure of vitellogenin was docked with the aforementioned chemicals that have demonstrated endocrine-disrupting activity. The pair-wise alignments between vitellogenin with phosvitin, lipovitellin-2 and YGP40 obtained by CLUSTALW alignment suggest that the vitellogenin contained lipovitellin-2- phosvitin- and YGP40-related amino acid sequences. Based on the prediction of CASTp and CLUSTALW, BPA and PCB predominantly interacted with lipovitellin-2 site of the protein, while PBDE interacts predominantly with the YGP40 site of the vitellogenin protein. The results indicate that the endocrine-disrupting chemicals (BPA, PCB and PBDE) dock with the vitellogenin cleavage sites lipovitellin-2 and YGP40 that play a crucial role in lipid-protein complex formation in the egg yolk. We hypothesize that these chemicals could potentially impair the egg yolk formation and eventually impact the zebra fish population which occupies an important niche among testing models used in drug discovery and related toxicity studies.
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Affiliation(s)
- S S Vutukuru
- Department of Biotechnology, Sreenidhi Institute of Science and Technology (Autonomous), Yamnampet, Hyderabad, Telangana, 501301, India.
| | - Jayasree Ganugapati
- Department of Biotechnology, Sreenidhi Institute of Science and Technology (Autonomous), Yamnampet, Hyderabad, Telangana, 501301, India
| | - Vardhini Ganesh
- Department of Biotechnology, Sreenidhi Institute of Science and Technology (Autonomous), Yamnampet, Hyderabad, Telangana, 501301, India
| | - P Atheeksha
- Department of Biotechnology, Sreenidhi Institute of Science and Technology (Autonomous), Yamnampet, Hyderabad, Telangana, 501301, India
| | - Ravindra Babu Potti
- Department of Biotechnology, Sreenidhi Institute of Science and Technology (Autonomous), Yamnampet, Hyderabad, Telangana, 501301, India
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Souza AO, Tasso MJ, Oliveira AMC, Pereira LC, Duarte FV, Oliveira DP, Palmeira CM, Dorta DJ. Evaluation of Polybrominated Diphenyl Ether Toxicity on HepG2 Cells - Hexabrominated Congener (BDE-154) Is Less Toxic than Tetrabrominated Congener (BDE-47). Basic Clin Pharmacol Toxicol 2016; 119:485-497. [DOI: 10.1111/bcpt.12598] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/04/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Alecsandra O. Souza
- Department of Chemistry; Faculty of Philosophy; Sciences and Languages of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - Maria J. Tasso
- Department of Chemistry; Faculty of Philosophy; Sciences and Languages of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - Alana M. C. Oliveira
- Department of Chemistry; Faculty of Philosophy; Sciences and Languages of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - Lilian C. Pereira
- Department of Clinical Analysis, Toxicological and Bromatological; Faculty of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - Filipe V. Duarte
- CNC - Center for Neuroscience and Cell Biology; Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Department of Life Sciences; University of Coimbra; Coimbra Portugal
| | - Danielle P. Oliveira
- Department of Clinical Analysis, Toxicological and Bromatological; Faculty of Pharmaceutical Sciences of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
| | - Carlos M. Palmeira
- CNC - Center for Neuroscience and Cell Biology; Faculty of Medicine; University of Coimbra; Coimbra Portugal
- Department of Life Sciences; University of Coimbra; Coimbra Portugal
| | - Daniel J. Dorta
- Department of Chemistry; Faculty of Philosophy; Sciences and Languages of Ribeirão Preto; University of São Paulo; Ribeirão Preto SP Brazil
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Song Y, Miao J, Pan L, Wang X. Exposure to2,2',4,4'-tetrabromodiphenyl ether (BDE-47) alters thyroid hormone levels and thyroid hormone-regulated gene transcription in manila clam Ruditapes philippinarum. Chemosphere 2016; 152:10-16. [PMID: 26943874 DOI: 10.1016/j.chemosphere.2016.02.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/02/2016] [Accepted: 02/10/2016] [Indexed: 06/05/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) have the potential to disturb the thyroid endocrine system in vertebrates, but little is known about the disruptive effects of PBDEs on marine bivalves. In this study, we first examined the effects of BDE-47 exposure on growth of juvenile manila clams Ruditapes philippinarum. The result showed that 1.0 and 10 μg L(-1) BDE-47 had adverse effects on 14-d shell-length growth of juvenile clams. Then, one-year-old adult clams were exposed to 0, 0.1 and 1 μg L(-1) BDE-47 for 15 d. BDE-47 (1 μg L(-1)) exposure caused significant decreases of total T4 (thyroxine) by 40% and T3 (3,5,3'-triiodothyronine) by 75% concentrations in haemolymph of the clams. Transcription of genes involved in thyroid hormone synthesis and metabolism were also studied by quantitative RT-PCR. Gene expression levels of sodium iodide symporter (rp-NIS), iodothyronine deiodinase (rp-Deio) and thyroid peroxidase (rp-TPO) were increased in a dose-dependent manner at day 5 and day 10, while monocarboxylate transporter 8 (rp-Mct8) was downregulated at day 5, day 10 and day 15. The effect and preliminary mechanism observed in the present study were consistent with the results from previous studies on rodent and fish, implying that exposure to BDE-47 may pose threat to thyroid hormone homeostasis in bivalves through thyroid synthesis and metabolism pathways. This study may provide a first step towards understanding of the thyroid function disruptive effects of PBDEs on marine bivalves and the underlying mechanism across taxonomic groups and phyla.
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Affiliation(s)
- Ying Song
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Jingjing Miao
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China.
| | - Luqing Pan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
| | - Xin Wang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, PR China
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50
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Novak P, Zuliani T, Milačič R, Ščančar J. Development of an analytical method for the determination of polybrominated diphenyl ethers in sewage sludge by the use of gas chromatography coupled to inductively coupled plasma mass spectrometry. Anal Chim Acta 2016; 915:27-35. [DOI: 10.1016/j.aca.2016.02.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/14/2016] [Accepted: 02/18/2016] [Indexed: 11/20/2022]
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