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Gill R, Wang Q, Takaku-Pugh S, Lytle E, Wang M, Bennett DH, Park J, Petreas M. Trends in flame retardant levels in upholstered furniture and children's consumer products after regulatory action in California. Chemosphere 2024; 351:141152. [PMID: 38218243 DOI: 10.1016/j.chemosphere.2024.141152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/02/2024] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
In 2013, California revised its upholstered furniture flammability standard TB 117-2013 to improve fire safety without the need for flame retardant (FR) chemicals. Subsequent legislation (SB 1019) required disclosure of FR content. In 2020 California expanded restriction on FR chemicals to include juvenile products and upholstered furniture (AB 2998). To monitor trends in FR use, and assess the effectiveness of the new regulations, we analyzed 346 samples from upholstered furniture (n = 270) and children's consumer products (n = 76), collected pre- and post-regulatory intervention for added FR chemicals (i.e., ∑FR > 1000 mg/kg). Upholstered furniture samples, collected from products before enactment of the new regulations, had a median FR concentration of 41,600 mg/kg (range: 1360-92,900 mg/kg), with 100% of the foam samples and 13.7% of the textile samples containing ∑FR > 1000 mg/kg. Firemaster formulations (FM 550 and FM 600), a mixture of triphenyl phosphate (TPHP), 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EH-TBB), bis(2-ethylhexyl)-3,4,5,6-tetrabromophthalate (BEH-TEBP) and a mixture of isopropyl- or tert-butyl-triphenyl phosphates (ITPs or TBPPs), were the most frequently detected FR (34%), followed by tris(1,3-dichloroisopropyl) phosphate (TDCIPP; 25%), TPHP with a mixture of polybrominated diphenyl ethers (BDE-47, 99, 100, 153 and 154; 20%) and tris(2-chloroethyl) phosphate (TCEP; 11%). Upholstered furniture components collected after enactment of the new legislation had a median FR concentration of 2600 mg/kg (range: 1160-49,800 mg/kg, outlier sample 282,200 mg/kg), with 11.9% of the foam samples and no textile samples containing ∑FR > 1000 mg/kg. Of these samples, tris(1-chloro-2-propyl) phosphate (TCIPP) was the most frequently detected FR (55%), followed by TDCIPP (30%) and Firemaster (FM 550, 15%). No PBDEs were detected in the post-regulatory intervention products. Our initial work on children's products showed 15% of the samples contained ∑FR > 1000 mg/kg. In our post- AB 2998 work, no regulated children's product components failed compliance (i.e., ∑FR > 1000 mg/kg). The data confirm successful adoption of the new regulations with most samples in compliance, demonstrating the efficacy of regulatory intervention. Given these results, environmental FR exposure is expected to decrease as older FR treated consumer products are replaced with FR free products.
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Affiliation(s)
- R Gill
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States.
| | - Q Wang
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States
| | - S Takaku-Pugh
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States
| | - E Lytle
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States
| | - M Wang
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States
| | - D H Bennett
- University of California, Davis, Department of Public Health Sciences, Davis, CA, 95616, United States
| | - J Park
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States; University of California, San Francisco, Department of Obstetrics, Gynecology and Reproductive Sciences, San Francisco, CA, 94158, United States
| | - M Petreas
- California Department of Toxic Substances Control, Environmental Chemistry Laboratory, Berkeley, CA, 94710, United States
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Lakshminarasimman N, Gewurtz SB, Parker WJ, Smyth SA. Quantifying the removal of polybrominated diphenyl ethers ( PBDEs) in physical, chemical, and biological sludge treatment systems. Chemosphere 2024; 351:141203. [PMID: 38228194 DOI: 10.1016/j.chemosphere.2024.141203] [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: 11/08/2023] [Revised: 01/03/2024] [Accepted: 01/11/2024] [Indexed: 01/18/2024]
Abstract
Polybrominated diphenyl ethers (PBDE) are priority contaminants historically used as flame retardants. PBDEs are known to occur in wastewater biosolids posing potential concerns with the beneficial land application of the biosolids. This study evaluated the removal of 21 congeners in nine full-scale sludge treatment systems including pelletization (P), alkaline stabilization (AS), and aerobic (AE) and anaerobic (AN) digestion. It is the first study to conduct a mass balance analysis of a broad spectrum of PBDEs during physical, chemical, and biological sludge treatment. The PBDE congener pattern in raw sludge and biosolids samples was consistent with commercial formulations. The fully brominated congener BDE-209 dominated biosolids from all sites with an average concentration of 620 ng/g dry weight (dw), followed by BDE-99 (173 ng/g dw) and BDE-47 (162 ng/g dw). Mass balance analysis on the P and AS processes showed no change in PBDE mass flows with treatment. However, aerobic and anaerobic digestion processes reported significant levels of removal and formation of individual congeners, though the results were not consistent between facilities. One aerobic digestion process (AE2) reported an overall average removal of 48%, whereas the other (AE1) reported very high levels of accumulation of tri- and tetraBDE congeners. Similarly, there were significant variations in PBDE behavior across the five anaerobic digestion plants studied. The plant with the longest solids retention time (SRT) (AN1) reported a moderate removal (50%) of overall PBDE loading and lower congeners, whereas other plants (AN2-AN5) showed significant low (-19%) to high (-166%) levels of formation of lower congeners. The results suggest that reduced SRTs result in formation of lower congeners while extended SRTs can lead to moderate removal of some PBDEs. Conventional sludge treatment result in low to moderate PBDE removal and advanced thermal conversion technologies may be needed to improve the contaminant removal during sludge treatment.
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Affiliation(s)
| | - Sarah B Gewurtz
- Science and Technology Branch, Environment and Climate Change Canada, Burlington, ON, Canada, L7S 1A1
| | - Wayne J Parker
- Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON, Canada, N2L 3G1
| | - Shirley Anne Smyth
- Science and Technology Branch, Environment and Climate Change Canada, Burlington, ON, Canada, L7S 1A1
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Wang Z, Zhou Y, Xiao X, Liu A, Wang S, Preston RJS, Zaytseva YY, He G, Xiao W, Hennig B, Deng P. Inflammation and cardiometabolic diseases induced by persistent organic pollutants and nutritional interventions: Effects of multi-organ interactions. Environ Pollut 2023; 339:122756. [PMID: 37844865 PMCID: PMC10842216 DOI: 10.1016/j.envpol.2023.122756] [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: 08/18/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/18/2023]
Abstract
The development and outcome of inflammatory diseases are associated with genetic and lifestyle factors, which include chemical and nonchemical stressors. Persistent organic pollutants (POPs) are major groups of chemical stressors. For example, dioxin-like polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFASs), and polybrominated diphenyl ethers (PBDEs) are closely associated with the incidence of inflammatory diseases. The pathology of environmental chemical-mediated inflammatory diseases is complex and may involve disturbances in multiple organs, including the gut, liver, brain, vascular tissues, and immune systems. Recent studies suggested that diet-derived nutrients (e.g., phytochemicals, vitamins, unsaturated fatty acids, dietary fibers) could modulate environmental insults and affect disease development, progression, and outcome. In this article, mechanisms of environmental pollutant-induced inflammation and cardiometabolic diseases are reviewed, focusing on multi-organ interplays and highlighting recent advances in nutritional strategies to improve the outcome of cardiometabolic diseases associated with environmental exposures. In addition, advanced system biology approaches are discussed, which present unique opportunities to unveil the complex interactions among multiple organs and to fuel the development of precision intervention strategies in exposed individuals.
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Affiliation(s)
- Zhongmin Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China; Irish Centre for Vascular Biology, School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Ireland
| | - Yixuan Zhou
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Xia Xiao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Aowen Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Shengnan Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Roger J S Preston
- Irish Centre for Vascular Biology, School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Ireland
| | - Yekaterina Y Zaytseva
- Superfund Research Center, University of Kentucky, Lexington, KY, USA; Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, KY, USA
| | - Guangzhao He
- Department of Pharmacy, Changzhou Cancer Hospital, Soochow University, Changzhou, Jiangsu, China
| | - Wenjin Xiao
- Department of Endocrinology, Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Bernhard Hennig
- Superfund Research Center, University of Kentucky, Lexington, KY, USA; Department of Animal and Food Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA
| | - Pan Deng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China.
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Garduño-Gutiérrez R, Rodríguez-Manzo G, Velázquez-Alvarado A, Miller-Pérez C, León-Olea M. The endocrine disruptor DE-79 alters oxytocinergic transmission and sexual behavior expression in male rats. Toxicol Appl Pharmacol 2023; 479:116723. [PMID: 37844777 DOI: 10.1016/j.taap.2023.116723] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs), used as flame retardants are persistent organic pollutants exerting important health effects. PBDEs with >5 bromide substitutions were considered less harmful and therefore extensively used commercially. DE-79 was a widely used PBDE mixture of hexa-, hepta-, octa- and nona-brominated compounds that increases vasopressin (AVP) production. AVP and oxytocin (OT) are both produced in neurons of the supraoptic (SON) and paraventricular (PVN) hypothalamic nuclei projecting to the neurohypophysis and to brain regions involved in copulatory behavior. OT plays an important role in male copulation. Since DE-79 alters AVP expression in the SON and PVN, it might also modify OT content and alter male sexual behavior. We analyzed if repeated DE-79 exposure of adult male rats affected OT content and OT receptor (OTR) density in the SON, PVN, medial preoptic area (mPOA), ventral tegmental area, nucleus accumbens, and amygdala, and if male copulatory behavior was affected. We show that DE-79 exposure produces a generalized decrease in brain OT immunoreactivity, increases OTR density in all brain regions analyzed but the mPOA, and reduces the ejaculatory threshold after a first ejaculation. The documented ejaculation-induced OT release might participate in this last effect. Thus, one-week DE-79 exposure alters the OT-OTR system and modifies male rat sexual performance. Based on the literature it could be speculated that these effects are related to the putative endocrine disrupting actions of DE-79, ultimately altering brain OT levels and OTR expression that might affect copulation and other important OT-mediated brain functions.
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Affiliation(s)
- René Garduño-Gutiérrez
- Departamento de Farmacobiología, Cinvestav Sede Sur, Calzada de los Tenorios 235, Col. Granjas Coapa, Delegación Tlalpan, Ciudad de México C.P.14330, Mexico
| | - Gabriela Rodríguez-Manzo
- Departamento de Farmacobiología, Cinvestav Sede Sur, Calzada de los Tenorios 235, Col. Granjas Coapa, Delegación Tlalpan, Ciudad de México C.P.14330, Mexico.
| | - Alejandro Velázquez-Alvarado
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Av. México-Xochimilco101, Col. San Lorenzo Huipulco, Ciudad de México C.P. 14370, Mexico
| | - Carolina Miller-Pérez
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Av. México-Xochimilco101, Col. San Lorenzo Huipulco, Ciudad de México C.P. 14370, Mexico
| | - Martha León-Olea
- Departamento de Neuromorfología Funcional, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Av. México-Xochimilco101, Col. San Lorenzo Huipulco, Ciudad de México C.P. 14370, Mexico.
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Cao M, Xu T, Song Y, Wang H, Wei S, Yin D. 2,2',4,4'-tetrabromodiphenyl ether causes depigmentation in zebrafish larvae via a light-mediated pathway. Sci Total Environ 2023; 897:165382. [PMID: 37422226 DOI: 10.1016/j.scitotenv.2023.165382] [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: 04/26/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/10/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are organic pollutants widely detected in various environmental media due to their high persistence and bioaccumulation. PBDE-induced visual impairment and neurotoxicity were previously demonstrated using zebrafish (Danio rerio) models, and recent research reported the phenotypic depigmentation effect of PBDEs at high concentrations on zebrafish, but whether those effects are still present at environment-relevant levels is still unclear. Herein, we performed both phenotypic examination and mechanism investigation in zebrafish embryos (48 hpf) and larvae (5 dpf) about their pigmentation status when exposing to PBDE congener BDE-47 (2,2',4,4'-tetrabrominated diphenyl ether) at levels from 0.25 to 25 μg/L. Results showed that low-level BDE-47 can restrain the relative melanin abundance of zebrafish larvae to 70.47% (p < 0.05) and 61.54% (p < 0.01) respectively under 2.5 and 25 μg/L BDE-47 compared with control, and the thickness of retinal pigment epithelium (RPE) remarkably reduced from 571.4 nm to 350.3 nm (p < 0.001) under 25 μg/L BDE-47 exposure. We also observed disrupted expressions of melanin synthesis genes and disorganized mitfa differentiation patterns based on Tg(mifta:EGFP), as well as visual impairment resulting from thinner RPE. Considering both processes of visual development and melanin synthesis are highly sensitive to ambient light conditions, we prolonged the light regime of maintaining zebrafish larvae from 14 hours light versus 10 hours dark (14L:10D) to 18 hours light versus 6 hours dark (18L:6D). Lengthening photoperiod successfully rescued the fluorescent level of mitfa in zebrafish epidermis and most gene expressions associated with melanin synthesis under 25 μg/L BDE-47 exposure to the normal level. In conclusion, our work reported the effects of low-level PBDEs on melanin production using zebrafish embryos and larvae, and identified the potential role of a light-mediated pathway in the neurotoxic mechanism of PBDEs.
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Affiliation(s)
- Miao Cao
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Ting Xu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Yiqun Song
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Huan Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Sheng Wei
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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Deveau M, Wille SM. Derivation and application of indoor air screening values for inhalation exposure to semi-volatile organic compounds. Regul Toxicol Pharmacol 2023; 143:105463. [PMID: 37516303 DOI: 10.1016/j.yrtph.2023.105463] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/22/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023]
Abstract
Semi-volatile organic compounds (SVOCs) are being increasingly studied in indoor air. The absence of health-based inhalation exposure guidelines for most SVOCs impedes the interpretation of indoor air concentrations from a health risk context. To accelerate the derivation of screening values for a large number of SVOCs, a tiered framework was developed to evaluate and adjust published hazard assessments for SVOCs to calculate benchmarks relevant for evaluation of inhalation risk. Inhalation screening values were derived for 43 SVOCs considered in this study, most of which required extrapolation from oral exposure guidelines. The screening values were compared to published SVOC concentrations in homes in Canada to evaluate the potential health risks of chronic exposure to SVOCs in indoor residential environments. SVOCs that could be prioritized for further evaluation were dibutyl phthalates (DBP), di(2-ethylhexyl) phthalate (DEHP) and polybrominated diphenyl ethers (PBDEs). The framework could be applied more broadly in the future to derive screening values for other non-traditional indoor air contaminants with limited inhalation hazard data or assessments.
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Affiliation(s)
- Michelle Deveau
- Water and Air Quality Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 269 Laurier Ave. West, AL: 4903B, Ottawa, ON, K1A 0K9, Canada.
| | - Stephanie M Wille
- Water and Air Quality Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, 269 Laurier Ave. West, AL: 4903B, Ottawa, ON, K1A 0K9, Canada
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Renzelli V, Gallo M, Morviducci L, Marino G, Ragni A, Tuveri E, Faggiano A, Mazzilli R, Natalicchio A, Zatelli MC, Montagnani M, Fogli S, Giuffrida D, Argentiero A, Danesi R, D’Oronzo S, Gori S, Franchina T, Russo A, Monami M, Sciacca L, Cinieri S, Colao A, Avogaro A, Di Cianni G, Giorgino F, Silvestris N. Polybrominated Diphenyl Ethers ( PBDEs) and Human Health: Effects on Metabolism, Diabetes and Cancer. Cancers (Basel) 2023; 15:4237. [PMID: 37686512 PMCID: PMC10486428 DOI: 10.3390/cancers15174237] [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] [Received: 07/25/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
There is increasing evidence of the role of endocrine disruptors (EDs) derived from commonly employed compounds for manufacturing and processing in altering hormonal signaling and function. Due to their prolonged half-life and persistence, EDs can usually be found not only in industrial products but also in households and in the environment, creating the premises for long-lasting exposure. Polybrominated diphenyl ethers (PBDEs) are common EDs used in industrial products such as flame retardants, and recent studies are increasingly showing that they may interfere with both metabolic and oncogenic pathways. In this article, a multidisciplinary panel of experts of the Italian Association of Medical Diabetologists (AMD), the Italian Society of Diabetology (SID), the Italian Association of Medical Oncology (AIOM), the Italian Society of Endocrinology (SIE) and the Italian Society of Pharmacology (SIF) provides a review on the potential role of PBDEs in human health and disease, exploring both molecular and clinical aspects and focusing on metabolic and oncogenic pathways.
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Affiliation(s)
- Valerio Renzelli
- Italian Association of Clinical Diabetologists, 00192 Rome, Italy;
| | - Marco Gallo
- Endocrinology and Metabolic Diseases Unit, AO SS Antonio e Biagio e Cesare Arrigo of Alessandria, 15121 Alessandria, Italy;
| | - Lelio Morviducci
- Diabetology and Nutrition Unit, Department of Medical Specialities, ASL Roma 1, S. Spirito Hospital, 00193 Rome, Italy;
| | - Giampiero Marino
- Internal Medicine Department, Ospedale dei Castelli, Asl Roma 6, 00040 Ariccia, Italy;
| | - Alberto Ragni
- Endocrinology and Metabolic Diseases Unit, AO SS Antonio e Biagio e Cesare Arrigo of Alessandria, 15121 Alessandria, Italy;
| | - Enzo Tuveri
- Diabetology, Endocrinology and Metabolic Diseases Service, ASL-Sulcis, 09016 Iglesias, Italy;
| | - Antongiulio Faggiano
- Endocrinology Unit, Department of Clinical & Molecular Medicine, Sant’Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy; (A.F.); (R.M.)
| | - Rossella Mazzilli
- Endocrinology Unit, Department of Clinical & Molecular Medicine, Sant’Andrea Hospital, Sapienza University of Rome, 00189 Rome, Italy; (A.F.); (R.M.)
| | - Annalisa Natalicchio
- Department of Precision and Regenerative Medicine and Ionian Area, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, 70121 Bari, Italy; (A.N.); (F.G.)
| | - Maria Chiara Zatelli
- Section of Endocrinology, Geriatrics and Internal Medicine, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy;
| | - Monica Montagnani
- Department of Precision and Regenerative Medicine and Ionian Area, Section of Pharmacology, University of Bari Aldo Moro, 70121 Bari, Italy;
| | - Stefano Fogli
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (S.F.); (R.D.)
| | - Dario Giuffrida
- Department of Oncology, Istituto Oncologico del Mediterraneo, Viagrande, 95029 Catania, Italy;
| | - Antonella Argentiero
- Medical Oncology Unit, IRCCS Istituto Tumori “Giovanni Paolo II”, 70124 Bari, Italy;
| | - Romano Danesi
- Clinical Pharmacology and Pharmacogenetics Unit, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (S.F.); (R.D.)
| | - Stella D’Oronzo
- Interdisciplinary Department of Medicine, University of Bari Aldo Moro, 70121 Bari, Italy;
| | - Stefania Gori
- Oncologia Medica, IRCCS Ospedale Don Calabria-Sacro Cuore di Negrar, 37024 Verona, Italy;
| | - Tindara Franchina
- Medical Oncology Unit, Department of Human Pathology “G. Barresi”, University of Messina, 98122 Messina, Italy; (T.F.); (N.S.)
| | - Antonio Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, 90133 Palermo, Italy;
| | - Matteo Monami
- Diabetology, Careggi University Hospital, University of Florence, 50134 Florence, Italy;
| | - Laura Sciacca
- Department of Clinical and Experimental Medicine, Endocrinology Section, University of Catania, 95124 Catania, Italy;
| | - Saverio Cinieri
- Medical Oncology Division, Breast Unit, Senatore Antonio Perrino Hospital, ASL Brindisi, 72100 Brindisi, Italy;
| | - Annamaria Colao
- Endocrinology, Diabetology and Andrology Unit, Department of Clinical Medicine and Surgery, Federico II University of Naples, 80138 Naples, Italy;
- UNESCO Chair, Education for Health and Sustainable Development, Federico II University, 80131 Naples, Italy
| | - Angelo Avogaro
- Department of Medicine, Section of Diabetes and Metabolic Diseases, University of Padova, 35122 Padova, Italy;
| | | | - Francesco Giorgino
- Department of Precision and Regenerative Medicine and Ionian Area, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, 70121 Bari, Italy; (A.N.); (F.G.)
| | - Nicola Silvestris
- Medical Oncology Unit, Department of Human Pathology “G. Barresi”, University of Messina, 98122 Messina, Italy; (T.F.); (N.S.)
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Pietron WJ, Malagocki P, Warenik-Bany M. Feed as a source of polybrominated diphenyl ethers ( PBDEs). Environ Res 2023; 231:116257. [PMID: 37245570 DOI: 10.1016/j.envres.2023.116257] [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: 04/15/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 05/30/2023]
Abstract
One of the most important routes for human exposure to polybrominated diphenyl ethers (PBDEs) is the ingestion of contaminated food. Food of animal origin safety is strongly related to feed quality. The aim of the study was the assessment of feeds and feed materials quality associated with ten PBDE congeners (BDE-28, 47, 49, 99, 100, 138, 153, 154, 183 and 209) contamination. The quality of 207 feed samples divided into eight categories (277/2012/EU) was checked using the gas chromatography-high resolution mass spectrometry (GC-HRMS). At least one congener was identified in 73% of the samples. All investigated fish oil, animal fat, and feed for fish were contaminated, and 80% of plant-origin feed samples were free of PBDEs. The highest median content of ∑10PBDE was found in fish oils (2260 ng kg-1) followed by fishmeal (530 ng kg-1). The lowest median was found in mineral feed additives, plant materials excluding vegetable oil and compound feed. BDE-209 was the most frequently detected congener (56%). All congeners except BDE-138 and BDE-183 were detected in 100% of the fish oil samples. Except for BDE-209, the congener detection frequencies did not exceed 20% in compound feed, feed of plant origin, and vegetable oils. Excluding BDE-209, similar congener profiles were found for fish oils, fishmeal and feed for fish, with BDE-47 in the highest concentration, followed by BDE-49 and BDE-100. Another pattern appeared in animal fat, with a higher median concentration of BDE-99 than BDE-47. Time-trend analysis of PBDE concentrations in fishmeal (n = 75) showed a 63% decrease in ∑10PBDE (p = 0.077) and a 50% decrease in the ∑9PBDE (p = 0.008) between 2017 and 2021. It proves the international legislation implemented to reduce PBDE environmental levels has been effective.
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Affiliation(s)
- Wojciech Jerzy Pietron
- Radiobiology Department, National Veterinary Research Institute, Pulawy, 24-100, Poland.
| | - Pawel Malagocki
- Radiobiology Department, National Veterinary Research Institute, Pulawy, 24-100, Poland
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Kim S, Li H, Jin Y, Armad J, Gu H, Mani S, Cui JY. Maternal PBDE exposure disrupts gut microbiome and promotes hepatic proinflammatory signaling in humanized PXR-transgenic mouse offspring over time. Toxicol Sci 2023; 194:209-225. [PMID: 37267213 PMCID: PMC10375318 DOI: 10.1093/toxsci/kfad056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Developmental exposure to the persistent environmental pollutant, polybrominated diphenyl ethers (PBDEs), is associated with increased diabetes prevalence. The microbial tryptophan metabolite, indole-3-propionic acid (IPA), is associated with reduced risk of type 2 diabetes and lower-grade inflammation and is a pregnane X receptor (PXR) activator. To explore the role of IPA in modifying the PBDE developmental toxicity, we orally exposed humanized PXR-transgenic (hPXR-TG) mouse dams to vehicle, 0.1 mg/kg/day DE-71 (an industrial PBDE mixture), DE-71+IPA (20 mg/kg/day), or IPA, from 4 weeks preconception to the end of lactation. Pups were weaned at 21 days of age and IPA supplementation continued in the corresponding treatment groups. Tissues were collected at various ages until 6 months of age (n = 5 per group). In general, the effect of maternal DE-71 exposure on the gut microbiome of pups was amplified over time. The regulation of hepatic cytokines and prototypical xenobiotic-sensing transcription factor target genes by DE-71 and IPA was age- and sex-dependent, where DE-71-mediated mRNA increased selected cytokines (Il10, Il12p40, Il1β [both sexes], and [males]). The hepatic mRNA of the aryl hydrocarbon receptor (AhR) target gene Cyp1a2 was increased by maternal DE-71 and DE-71+IPA exposure at postnatal day 21 but intestinal Cyp1a1 was not altered by any of the exposures and ages. Maternal DE-71 exposure persistently increased serum indole, a known AhR ligand, in age- and sex-dependent manner. In conclusion, maternal DE-71 exposure produced a proinflammatory signature along the gut-liver axis, including gut dysbiosis, dysregulated tryptophan microbial metabolism, attenuated PXR signaling, and elevated AhR signaling in postweaned hPXR-TG pups over time, which was partially corrected by IPA supplementation.
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Affiliation(s)
- Sarah Kim
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
| | - Hao Li
- Departments of Medicine, Molecular Pharmacology, and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, Florida 34987-2352, USA
| | - Jasmine Armad
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
| | - Haiwei Gu
- Center for Translational Science, Florida International University, Port St. Lucie, Florida 34987-2352, USA
| | - Sridhar Mani
- Departments of Medicine, Molecular Pharmacology, and Genetics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Julia Y Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington 98105, USA
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Sun Y, Francois R, Pawlowicz R, Maldonado MT, Stevens SW, Soon M. Distribution, sources and dispersion of polybrominated diphenyl ethers in the water column of the Strait of Georgia, British Columbia, Canada. Sci Total Environ 2023; 873:162174. [PMID: 36781132 DOI: 10.1016/j.scitotenv.2023.162174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/28/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Dissolved and particulate polybrominated diphenyl ether (PBDE) concentrations were measured in the water column of the Strait of Georgia (SoG), Haro Strait, Juan de Fuca Strait, Burrard Inlet, and the Fraser River to assess their sources and dispersion. Total PBDE concentrations in the water column of the southern basin of the SoG are surprisingly high (similar to the load reported for coastal zones heavily impacted by human activities). Moreover, the dissolved fraction (i.e. passing through a 2.2 μm pore size filter) accounts for >95 % of the total load, which is unlike what is more typically found in other coastal zones, where particulate PBDEs generally dominate. Decreasing concentrations away from the southern SoG, eventually reaching typical open ocean values in Juan de Fuca Strait, point to the Vancouver metropolitan area as the main proximal source of PBDEs. About half of the direct PBDE input comes from wastewater treatment plants, with atmospheric deposition and the Fraser river accounting for most of the rest. However, these direct sources alone cannot explain the high dissolved PBDE load observed in the water column of southern SoG. PBDE scavenging rates estimated from concentration gradients and water transit times imply a PBDE flux to the seafloor which largely exceeds the measured burial rates of PBDEs in sediments. To reconcile these observations and explain the dominance of the dissolved fraction in the water column of the southern SoG, we invoke and provide supporting evidence for the release of colloidal PBDE from the resuspension of PBDE-contaminated sediments by bottom currents. If confirmed, this continued PBDE exchange between sediments and the water column would maintain high levels of PBDEs, and possibly other hydrophobic and persistent organic contaminants, in the water column of the southern SoG until the contaminated sediments are buried below the sediment mixed layer.
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Affiliation(s)
- Yuanji Sun
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada
| | - Roger Francois
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada.
| | - Richard Pawlowicz
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada
| | - Maria T Maldonado
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada
| | - Samuel W Stevens
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada
| | - Maureen Soon
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, 2207 Main Mall #2020, Vancouver, BC V6T 1Z4, Canada
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11
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Ruis M, Hoffman K, Stapleton HM. Brominated flame retardants and legacy organochlorines in archived human placenta samples: Sex differences, temporal analysis and associations with infant birth weight. Chemosphere 2023; 322:138170. [PMID: 36804493 PMCID: PMC10039416 DOI: 10.1016/j.chemosphere.2023.138170] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Perinatal exposure to persistent organic pollutants (POPs) has been suggested to play a role in the etiology of adverse pregnancy outcomes. This study evaluated temporal changes in the accumulation of several classes of POPs, including polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs) and several organochlorine pesticides in human placenta and examined their associations with birth outcomes at delivery. Placental tissues (n = 99) previously collected and archived at the Duke University Medical Center from 2009 to 2015 were analyzed for 22 POPs using gas chromatography mass spectrometry. The mean age of mothers was 30.6 years; 8% of newborns were characterized as low birthweight (<2500 g). Of the 22 POPs targeted in the analysis, only p,p'-DDE, BDE-47 and BDE-100 were detected in more than 50% of the samples, with median concentrations of 0.110, 0.310, and 0.033 ng/g wet weight, respectively. Placental PBDE concentrations generally decreased over time, particularly BDE-47. Placental tissues associated with female infants had significantly higher levels of BDE-100 than placental tissues associated with male infants (p = 0.02) and a similar, but not statistically significant trend was observed for BDE-47 (p = 0.07). Multivariate regression models revealed that placental BDE-47 concentrations were associated with a significantly lower birthweight among male, but not female infants. A similar, although non-statistically significant, trend was observed for other POPs, further suggesting sex-specific associations between gestational exposure to POPs and birthweight.
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Affiliation(s)
- Matthew Ruis
- Nicholas School of the Environment, Levine Science Research Center, Duke University, Durham, NC, 27710, USA
| | - Kate Hoffman
- Nicholas School of the Environment, Levine Science Research Center, Duke University, Durham, NC, 27710, USA; Children's Health Discovery Initiative, Duke School of Medicine, North Carolina, United States
| | - Heather M Stapleton
- Nicholas School of the Environment, Levine Science Research Center, Duke University, Durham, NC, 27710, USA.
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de Oliveira-Ferreira N, Santos-Neto EB, Manhães BMR, Domit C, Secchi ER, Botta S, Cunha HA, Azevedo AF, Bisi TL, Lailson-Brito J. An additional threat to populations predicted to collapse: Organobromine compounds of natural and anthropogenic sources in rough-toothed dolphins from the Southwestern Atlantic Ocean. Chemosphere 2023; 323:138237. [PMID: 36863632 DOI: 10.1016/j.chemosphere.2023.138237] [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: 11/22/2022] [Revised: 02/14/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Organic contaminants with toxic effects, like the conventional brominated flame retardants (BFRs) and BFRs of emergent concern, and their synergistic effects with other micropollutants, can be an additional threat to delphinids. Rough-toothed dolphins (Steno bredanensis) populations strongly associated with coastal environments already face a potential risk of decline due to high exposure to organochlorine pollutants. Moreover, natural organobromine compounds are important indicators of the environment's health. Polybrominated diphenyl ethers (PBDEs), pentabromoethylbenzene (PBEB), hexabromobenzene (HBB) and the methoxylated PBDEs (MeO-BDEs) were determined in the blubber of rough-toothed dolphins from three ecological populations from the Southwestern Atlantic Ocean (Southeastern, Southern and Outer Continental Shelf/Southern populations, SE, S, and OCS/S, respectively). The profile was dominated by the naturally produced MeO-BDEs (mainly 2'-MeO-BDE 68 and 6-MeO-BDE 47), followed by the anthropogenic BFRs PBDEs (mainly BDE 47). Median ΣMeO-BDE concentrations varied between 705.4 and 3346.0 ng g-1 lw among populations and ΣPBDE from 89.4 until 538.0 ng g-1 lw. Concentrations of anthropogenic organobromine compounds (ΣPBDE, BDE 99 and BDE 100) were higher in SE population than in OCS/S, indicating a coast - ocean gradient of contamination. Negative correlations were found between the concentration of the natural compounds and age, suggesting their metabolization and/or biodilution and maternal transference. Conversely, positive correlations were found between the concentrations of BDE 153 and BDE 154 and age, indicating low biotransformation capability of these heavy congeners. The levels of PBDEs found are concerning, particularly for SE population, because they are similar to concentrations known for the onset of endocrine disruption in other marine mammals and may be an additional threat to a population in a hotspot for chemical pollution.
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Affiliation(s)
- Nara de Oliveira-Ferreira
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Ciências Biológicas - Biofísica, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho, 373, Postal Code: 21941-590; Rio de Janeiro, Brazil.
| | - Elitieri B Santos-Neto
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil
| | - Bárbara M R Manhães
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil
| | - Camila Domit
- Laboratório de Ecologia e Conservação (LEC), Centro de Estudos do Mar (CEM), Universidade Federal do Paraná (UFPR), Avenida Beira Mar s/n, Postal Code: 83255-000, Pontal do Paraná, Paraná, Brazil
| | - Eduardo R Secchi
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália, km 8, Postal Code: 96203-900, Rio Grande, Rio Grande do Sul, Brazil
| | - Silvina Botta
- Laboratório de Ecologia e Conservação da Megafauna Marinha (ECOMEGA), Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália, km 8, Postal Code: 96203-900, Rio Grande, Rio Grande do Sul, Brazil
| | - Haydée A Cunha
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil; Departamento de Genética, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil
| | - Alexandre F Azevedo
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil
| | - Tatiana L Bisi
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil
| | - José Lailson-Brito
- Laboratório de Mamíferos Aquáticos e Bioindicadores (MAQUA), Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Postal Code: 20550-013, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Ciências Biológicas - Biofísica, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Avenida Carlos Chagas Filho, 373, Postal Code: 21941-590; Rio de Janeiro, Brazil
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Saïd Hassane C, Tintillier F, Campos PE, Herbette G, de Voogd NJ, Ouazzani J, Fouillaud M, Dufossé L, Gauvin-Bialecki A. Polybrominated diphenyl ethers isolated from the marine sponge Lendenfeldia chondrodes collected in Mayotte. Nat Prod Res 2023:1-10. [PMID: 37086477 DOI: 10.1080/14786419.2023.2204431] [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: 04/24/2023]
Abstract
CDK7 and FynB protein kinases have been recognized as relevant targets for cancer and brain diseases treatment due to their pivotal regulatory roles in cellular functions such as cell cycle and neural signal transduction. Several studies demonstrated that the inhibition of these proteins could be useful in altering the onset or progression of these diseases. Based on bioassay-guided approach, the extract of the marine sponge Lendenfeldia chondrodes (Thorectidae), which exhibited interesting kinase inhibitory activities, was fractionated. The investigation led to the isolation of five known 1-5 and one new 6 polybrominated diphenyl ethers (PBDEs). Their structure elucidation was established based on spectroscopic data (NMR and HRMS) and comparison with literature data.
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Affiliation(s)
- Charifat Saïd Hassane
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Florent Tintillier
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Pierre-Eric Campos
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
- Institut de Chimie Organique et Analytique, Université d'Orléans - Pôle de chimie, Orléans, France
| | - Gaëtan Herbette
- Spectropole, FSCM CNRS, Centrale Marseille, Aix-Marseille University, Marseille, France
| | - Nicole J de Voogd
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - Jamal Ouazzani
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Mireille Fouillaud
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Laurent Dufossé
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
| | - Anne Gauvin-Bialecki
- Laboratoire de Chimie et de Biotechnologie des Produits Naturels, Faculté des Sciences et Technologies, Université de La Réunion, Saint-Denis, France
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Pietron WJ, Warenik-Bany M. Terrestrial animal livers as a source of PCDD/Fs, PCBs and PBDEs in the diet. Sci Total Environ 2023; 867:161508. [PMID: 36642267 DOI: 10.1016/j.scitotenv.2023.161508] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/05/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
The livers of terrestrial animals are an important source of vitamins and minerals, but with the liver being the major filtering and detoxifying organ, it retains xenobiotic material, especially persistent organic pollutants (POPs). The aim of the study was human health risk assessment related to the presence of certain POPs, namely polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) in terrestrial animals' livers. HRGC-HRMS was used to determine analyte concentrations in 99 liver samples of chicken, pork, beef, and mutton livers obtained from Polish farms. The ovine livers were the most contaminated by ∑PCDD/F/dl-PCBs (0.06-2.21 pg WHO-TEQ g-1 wet weight), ∑ndl-PCBs (0.036-1.54 ng g-1 wet weight) and ∑PBDEs (0.21-2.27 ng g-1 wet weight). Samples were found of ovine and pork livers that exceeded the maximum concentration limits established for PCDD/Fs. The Kruskal-Wallis test showed that there were statistical differences between regions in the concentrations of the ∑PCDD/Fs and ∑PCDD/F-PCBs, but none in those of the ∑dl-PCBs, ∑ndl-PCBs or ∑PBDEs. According to Dunnett's test results, ovine liver samples from the Podlaskie province contained fewer ∑PCDD/F than those from the Dolnośląskie (p < 0.027) and Małopolskie (p < 0.0342) voivodeships. Taking into account PCDD/F contents and Tolerable Weekly Intake (2 pg WHO-TEQ/kg BW) (TWI2018), the lowest risk was associated with chicken liver consumption (TWI up to 11 % in the 95th percentile), pork (62 %) and bovine (92 %) livers should be eaten in limited amounts for risk avoidance, while mutton liver (400 %) should not be eaten at all. Additionally, there is no risk of ingestion of a harmful amount of PBDEs associated with consumption of the livers of terrestrial animals from Poland based on the margin of exposure values (>15).
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Gao Q, Zhou ZY, He YN, Dong MH, Wang ZN, Chen HM. BDE-47 Induces Immunotoxicity in RAW264.7 Macrophages through the Reactive Oxygen Species-Mediated Mitochondrial Apoptotic Pathway. Molecules 2023; 28. [PMID: 36903282 DOI: 10.3390/molecules28052036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) are classic and emerging pollutants that are potentially harmful to the human immune system. Research on their immunotoxicity and mechanisms suggests that they play an important role in the resulting pernicious effects of PBDEs. 2,2',4,4'-Tetrabrominated biphenyl ether (BDE-47) is the most biotoxic PBDE congener, and, in this study, we evaluated its toxicity toward RAW264.7 cells of mouse macrophages. The results show that exposure to BDE-47 led to a significant decrease in cell viability and a prominent increase in apoptosis. A decrease in mitochondrial membrane potential (MMP) and an increase in cytochrome C release and caspase cascade activation thus demonstrate that cell apoptosis induced by BDE-47 occurs via the mitochondrial pathway. In addition, BDE-47 inhibits phagocytosis in RAW264.7 cells, changes the related immune factor index, and causes immune function damage. Furthermore, we discovered a significant increase in the level of cellular reactive oxygen species (ROS), and the regulation of genes linked to oxidative stress was also demonstrated using transcriptome sequencing. The degree of apoptosis and immune function impairment caused by BDE-47 could be reversed after treatment with the antioxidant NAC and, conversely, exacerbated by treatment with the ROS-inducer BSO. These findings indicate that oxidative damage caused by BDE-47 is a critical event that leads to mitochondrial apoptosis in RAW264.7 macrophages, ultimately resulting in the suppression of immune function.
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Zheng K, Zeng Z, Lin Y, Wang Q, Tian Q, Huo X. Current status of indoor dust PBDE pollution and its physical burden and health effects on children. Environ Sci Pollut Res Int 2023; 30:19642-19661. [PMID: 36648715 DOI: 10.1007/s11356-022-24723-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are widely detected in indoor dust, which has been identified as a more important route of PBDE exposure for children than food intake. The physical burden and health hazards to children of PBDE exposure in house dust have not been adequately summarized; therefore, this article reviews the current status of PBDE pollution in indoor dust associated with children, highlighting the epidemiological evidence for physical burden and health risks in children. We find that PBDEs remain at high levels in indoor dust, including in homes, schools, and cars, especially in cars showing a significant upward trend. There is a trend towards an increase in the proportion of BDE-209 in household dust, which is indicative of recent PBDE contamination. Conversely, PBDE congeners in car and school indoor dust tended to shift from highly brominated to low brominated, suggesting a shift in current pollution patterns. Indoor dust exposure causes significantly higher PBDE burdens in children, especially infants in early life, than in adults. Exposure to dust also affects breast milk, putting infants at high risk of exposure. Although evidence is limited, available epidemiological studies suggest that exposure to indoor dust PBDEs promotes neurobehavioral problems and cancer development in children.
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Affiliation(s)
- Keyang Zheng
- Laboratory of Environmental Medicine and Developmental Toxicology, School of Environment, Jinan University, 855 East Xingye Avenue, Guangzhou, 511443, Guangdong, China
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Zhijun Zeng
- Laboratory of Environmental Medicine and Developmental Toxicology, School of Environment, Jinan University, 855 East Xingye Avenue, Guangzhou, 511443, Guangdong, China
| | - Yucong Lin
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, 94720, Berkeley, USA
| | - Qihua Wang
- Laboratory of Environmental Medicine and Developmental Toxicology, School of Environment, Jinan University, 855 East Xingye Avenue, Guangzhou, 511443, Guangdong, China
| | - Qianwen Tian
- Laboratory of Environmental Medicine and Developmental Toxicology, School of Environment, Jinan University, 855 East Xingye Avenue, Guangzhou, 511443, Guangdong, China
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, School of Environment, Jinan University, 855 East Xingye Avenue, Guangzhou, 511443, Guangdong, China.
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Wang Q, Chen G, Tian L, Kong C, Gao D, Chen Y, Junaid M, Wang J. Neuro- and hepato-toxicity of polystyrene nanoplastics and polybrominated diphenyl ethers on early life stages of zebrafish. Sci Total Environ 2023; 857:159567. [PMID: 36272476 DOI: 10.1016/j.scitotenv.2022.159567] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/29/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Nanoplastics (NPs) are good carriers of persistent organic pollutants (POPs) such as polybrominated diphenyl ethers (PBDEs) and can modify their bioavailability and toxicity to aquatic organisms. This study highlights the single and combined toxic effects of polystyrene nanoplastics (PS-NPs) and 2,2 ',4,4 '-tetrabromodiphenyl ether (BDE-47, one of the major PBDE congeners) on zebrafish embryos after an exposure of up to 120 hpf. Our results showed that PS-NPs and BDE-47 formed larger particle aggregates during co-exposure, which attached to the surface of the yolk membrane and even changed its structure, and these particles also bioaccumulated in the intestine of zebrafish larvae, compared with the PS-NPs single exposure. Further, the co-exposure significantly increased mortality, accelerated voluntary movements, enhanced hatching rate, and decreased heart rate. Hepatoxicity analyses revealed that the mixture exposure induced a darker/browner liver colour, atrophied liver and greater hepatotoxicity in zebrafish larvae. In addition to increased ROS accumulation, the reduced expression of the antioxidant gpx1a gene and increased expression of cyp1a1 were found after co-treatment. Moreover, ache and chrn7α genes associated with neurocentral development, were significantly downregulated, mainly in the co-exposure group. In conclusion, simultaneous exposure to PS-NPs and BDE-47 exacerbated oxidative stress, developmental impacts, hepatotoxicity, and neurodevelopmental toxicity in zebrafish larvae. Therefore, neurotoxic effects of complex chemical interactions between PS-NPs and persistent organic pollutants in freshwater environments should be paid more attention.
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Affiliation(s)
- Qiuping Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Guanglong Chen
- Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, China
| | - Liyan Tian
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Chunmiao Kong
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Dandan Gao
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yurou Chen
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Muhammad Junaid
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Jun Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, China.; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangzhou 510006, China.
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Di Natale MV, Carroccio SC, Dattilo S, Cocca M, Nicosia A, Torri M, Bennici CD, Musco M, Masullo T, Russo S, Mazzola A, Cuttitta A. Polymer aging affects the bioavailability of microplastics-associated contaminants in sea urchin embryos. Chemosphere 2022; 309:136720. [PMID: 36206916 DOI: 10.1016/j.chemosphere.2022.136720] [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] [Received: 06/14/2022] [Revised: 09/15/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Microplastics (MPs) in the marine environment undergo complex weathering factors that can affect their ability to interact with different coexisting environmental contaminants (termed here co-contaminants). In this study, the influence of artificially aging using UV on the sorption of a complex mixture of co-contaminants onto MPs was investigated in order to provide meaningful hypotheses on their individual and combined toxicities on sea urchin embryos. A mixture of artificially aged MPs (PS particles and PA microfibers) combined with 2,2',4,4'-tetrabromodiphenyl ether (BDE-47), or Cd or Cu, both alone and in a mix, were used to expose embryos of Paracentrotus lividus. The effects of polymer aging on co-contaminants bioavailability were assessed by measuring changes in the transcriptional profile of genes involved in oxidative-stress response and skeletogenic and endo-mesodermal specification. Changes in the sorption ability of MPs to co-contaminants in the aqueous phase highlighted that aging did not affect the sorption of BDE-47 and Cd on MPs, although a certain influence on Cu sorption was found. Despite no morphological effects in embryos at the gastrula stage after MPs/contaminants combinatorial exposure emerged, the greatest influence of the aging process was mainly found for combined exposures which included BDE-47. Finally, the exposure to multiple contaminants generated transcriptional profiles poorly related to those activated by single contaminant, at times suggesting a mixture-dependent different aging influence. These results open new scenarios on the controversial role of vector of co-contaminants for MPs, especially when complex and different types of mixtures were considered.
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Affiliation(s)
- Marilena Vita Di Natale
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy; University of Palermo, Department of Earth and Marine Sciences (DiSTEM), Via Archirafi 22, 90123, Palermo (PA), Italy.
| | | | | | - Mariacristina Cocca
- Institute of Polymers, Composites, and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078, Pozzuoli (NA), Italy.
| | - Aldo Nicosia
- National Research Council of Italy, Institute for Biomedical Research and Innovation (IRIB-CNR), Via Ugo La Malfa, 153, 90146, Palermo, Italy.
| | - Marco Torri
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy.
| | - Carmelo Daniele Bennici
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy.
| | - Marianna Musco
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy; LUMSA University - Via Filippo Parlatore n. 65, Palermo, Italy.
| | - Tiziana Masullo
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy.
| | - Stefania Russo
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy; University of Palermo, Department of Earth and Marine Sciences (DiSTEM), Via Archirafi 22, 90123, Palermo (PA), Italy.
| | - Antonio Mazzola
- University of Palermo, Department of Earth and Marine Sciences (DiSTEM), Via Archirafi 22, 90123, Palermo (PA), Italy.
| | - Angela Cuttitta
- National Research Council of Italy, Institute for Studies on the Mediterranean (ISMed-CNR), Detached Unit of Palermo, Via Filippo Parlatore 95, 90145, Palermo, Italy; LUMSA University - Via Filippo Parlatore n. 65, Palermo, Italy.
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19
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Arowolo O, Pilsner JR, Sergeyev O, Suvorov A. Mechanisms of Male Reproductive Toxicity of Polybrominated Diphenyl Ethers. Int J Mol Sci 2022; 23. [PMID: 36430706 DOI: 10.3390/ijms232214229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Polybrominated diphenyl ethers (PBDE) are a group of flame retardants used in a variety of artificial materials. Despite being phased out in most industrial countries, they remain in the environment and human tissues due to their persistence, lipophilicity, and bioaccumulation. Populational and experimental studies demonstrate the male reproductive toxicity of PBDEs including increased incidence of genital malformations (hypospadias and cryptorchidism), altered weight of testes and other reproductive tissues, altered testes histology and transcriptome, decreased sperm production and sperm quality, altered epigenetic regulation of developmental genes in spermatozoa, and altered secretion of reproductive hormones. A broad range of mechanistic hypotheses of PBDE reproductive toxicity has been suggested. Among these hypotheses, oxidative stress, the disruption of estrogenic signaling, and mitochondria disruption are affected by PBDE concentrations much higher than concentrations found in human tissues, making them unlikely links between exposures and adverse reproductive outcomes in the general population. Robust evidence suggests that at environmentally relevant doses, PBDEs and their metabolites may affect male reproductive health via mechanisms including AR antagonism and the disruption of a complex network of metabolic signaling.
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Yang Y, Yang L, Chen H, Tan H, Yang J, Sun F, Sun J, Gong X, Tao L, Huang Y. Low-level alternative halogenated flame retardants (AHFRs) in indoor dust from Adelaide, South Australia decades since national legislative control on polybrominated diphenyl ethers ( PBDEs). Sci Total Environ 2022; 826:154123. [PMID: 35219667 DOI: 10.1016/j.scitotenv.2022.154123] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 01/23/2022] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Since commercial polybrominated diphenyl ethers (PBDEs) have been globally banned or restricted in 2000s, alternative halogenated flame retardants (AHFRs) appear increasingly dominant over PBDEs in many countries/regions. In this study, low levels of AHFRs were unexpectedly observed in the indoor dust from Adelaide, South Australia. Anti-dechlorane plus (anti-DP) was the most frequently detected AHFR with a median concentration of 1.28 ng/g, while other AFHRs were less detected (detection frequency < 50%). The levels of ΣPBDEs (496 ng/g, median) and ΣAHFRs (160 ng/g) and the ratio of ΣAHFRs/ΣPBDEs (0.32) were much lower than those investigated in Australian indoor dust previously. The findings were different to the trend for PBDEs and AHFRs from other countries over the past two decades. No significant correlation was determined between DP and PBDE congeners, indicating their different sources in dust. The human exposure assessment suggested that dust ingestion was the predominant pathway of PBDEs and AHFRs exposure for toddlers, while dermal absorption may be the dominant pathway for adults. The estimated daily intake (EDI) suggested low health risks via dust ingestion and dermal contact for general populations in Adelaide. This study contributes to the knowledge on region-specific FR contamination in indoor environments and related human exposure risk.
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Affiliation(s)
- Yan Yang
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Synergy Innovation Institute of GDUT, Shantou 515041, China; Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515041, Guangdong, China
| | - Liu Yang
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China
| | - Haojia Chen
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Synergy Innovation Institute of GDUT, Shantou 515041, China
| | - Hongli Tan
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China
| | - Jing Yang
- State Environmental Protection Key Laboratory of Quality Control in Environmental, Monitoring, China National Environmental Monitoring Center, Beijing 100012, China
| | - Fengjiang Sun
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China
| | - Jiachen Sun
- College of Marine Life Science, Ocean University of China, Qingdao 266000, China
| | - Xue Gong
- School of Agriculture, Food & Wine, the University of Adelaide, Adelaide, SA 5000, Australia
| | - Lin Tao
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China.
| | - Yichao Huang
- Department of Toxicology, School of Public Health, Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei 230032, China; School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China.
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21
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Fromme H, Fuchs V, Albrecht M, Aschenbrenner B, Röhl C, Janitzki N, Herber-Jonat S, Wöckner M, Völkel W, Flemmer AW, Schober W. Polychlorinated dioxins and dibenzofurans (PCDD/F), polybrominated dioxins and dibenzofurans (PBDD/F), polychlorinated biphenyls (PCB), polybrominated diphenyl ethers ( PBDE), and per- and polyfluoroalkyl substances (PFAS) in German breast milk samples (LUPE 8). Sci Total Environ 2022; 825:154066. [PMID: 35217048 DOI: 10.1016/j.scitotenv.2022.154066] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 11/24/2021] [Revised: 01/10/2022] [Accepted: 02/17/2022] [Indexed: 05/06/2023]
Abstract
Most organic pollutants (POP) are persistent in the environment, accumulate in fatty tissues, and so a transfer through the food chain is probably, thereby causing various health effects. We quantified PCDD/F, PBDD/F, PCB, PBDE, perfluorinated substances, and ADONA in breast milk samples collected in two German federal states and breast milk and blood samples from subjects additionally exposed to PFOA. The median (95th percentile) concentrations were 2.43 (6.58) pgWHO2005TEQ/g l.w. for PCDD/F, 2.45 (4.82) pgWHO2005TEQ/g l.w. for dioxin-like PCB (dl-PCB), and 0.62 (2.69) pgWHO2005TEQ/g l.w. for PBDD/F. The relative contributions of the median values of PCDD/F, dl-PCB, and PBDD/F to the total-TEQ were approximately 41%, 42%, and 11%, respectively. Nondioxin-like PCB (ndl-PCB) concentrations were clearly dominated by the higher chlorinated PCB congeners, with medians of 23.2 ng/g l.w. for PCB 153, 13.9 ng/g l.w. for PCB 138, and 13.0 ng/g l.w. for PCB 180. The sum of the 3 congeners (PCB 138, 153, and 180) were multiplied with 1.64 (total PCB) and showed a median of 82.16 ng/g l.w. and a 95th percentile of 173.3 ng/g l.w. Only PFOA and PFOS could be quantified in 29% and 17% of in total 180 samples with 95th percentiles of 53 ng/l and 33 ng/l, respectively. Milk samples (n = 13) from subjects living on PFOA contaminated sites showed higher levels between 33 and 854 ng/l PFOA (mean: 199 ng/l), whilst PFOS could be quantified only in three samples. The sum of 17 PBDE congeners showed medians (95th percentile) of 1737 pg/g l.w. (22,806 pg/g l.w.), with the highest medians of 422 pg/g l.w. for BDE 209 and 378 pg/g l.w. for BDE 153. Overall, our study confirms the declining contamination level in breast milk during the last decade, but points out the need to further reduce the environmental contamination with persistent substances and subsequently the exposure in childhood.
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Affiliation(s)
- Hermann Fromme
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, Ludwig-Maximilians-University Munich, Ziemssenstrasse 1, D-80336 Munich, Germany.
| | - Veronika Fuchs
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
| | - Michael Albrecht
- Bavarian Health and Food Safety Authority, Department of Dioxins, Irradiation, Nitrosamines, Radioactivity, Veterinaerstrasse 2, D-85764 Oberschleissheim, Germany
| | - Bettina Aschenbrenner
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
| | - Claudia Röhl
- Schleswig-Holstein State Agency for Social Services, Department of Environmental Health Protection, Gartenstrasse 24, D-24534 Neumünster, Germany
| | - Nora Janitzki
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
| | - Susanne Herber-Jonat
- Division of Neonatology, University Children's Hospital, Dr. V. Hauner and Perinatal Center, LMU Hospital, Marchioninistrasse 15, Munich D-81377, Germany
| | - Mandy Wöckner
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
| | - Wolfgang Völkel
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
| | - Andreas W Flemmer
- Division of Neonatology, University Children's Hospital, Dr. V. Hauner and Perinatal Center, LMU Hospital, Marchioninistrasse 15, Munich D-81377, Germany
| | - Wolfgang Schober
- Bavarian Health and Food Safety Authority, Department of Chemical Safety and Toxicology, Pfarrstrasse 3, D-80538 Munich, Germany
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22
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Chen H, Carty RK, Bautista AC, Hayakawa KA, Lein PJ. Triiodothyronine or Antioxidants Block the Inhibitory Effects of BDE-47 and BDE-49 on Axonal Growth in Rat Hippocampal Neuron-Glia Co-Cultures. Toxics 2022; 10:92. [PMID: 35202279 PMCID: PMC8879960 DOI: 10.3390/toxics10020092] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/02/2022] [Accepted: 02/02/2022] [Indexed: 12/31/2022]
Abstract
We previously demonstrated that polybrominated diphenyl ethers (PBDEs) inhibit the growth of axons in primary rat hippocampal neurons. Here, we test the hypothesis that PBDE effects on axonal morphogenesis are mediated by thyroid hormone and/or reactive oxygen species (ROS)-dependent mechanisms. Axonal growth and ROS were quantified in primary neuronal-glial co-cultures dissociated from neonatal rat hippocampi exposed to nM concentrations of BDE-47 or BDE-49 in the absence or presence of triiodothyronine (T3; 3-30 nM), N-acetyl-cysteine (NAC; 100 µM), or α-tocopherol (100 µM). Co-exposure to T3 or either antioxidant prevented inhibition of axonal growth in hippocampal cultures exposed to BDE-47 or BDE-49. T3 supplementation in cultures not exposed to PBDEs did not alter axonal growth. T3 did, however, prevent PBDE-induced ROS generation and alterations in mitochondrial metabolism. Collectively, our data indicate that PBDEs inhibit axonal growth via ROS-dependent mechanisms, and that T3 protects axonal growth by inhibiting PBDE-induced ROS. These observations suggest that co-exposure to endocrine disruptors that decrease TH signaling in the brain may increase vulnerability to the adverse effects of developmental PBDE exposure on axonal morphogenesis.
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Affiliation(s)
| | | | | | | | - Pamela J. Lein
- Department of Molecular Biosciences, University of California, Davis, CA 95616, USA; (H.C.); (R.K.C.); (A.C.B.); (K.A.H.)
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23
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Fernandes AR, Zwickel T, Schächtele A. Ensuring the reliability of brominated flame retardant data on food and feed occurrence through harmonised analytical criteria and proficiency testing. Chemosphere 2022; 286:131921. [PMID: 34426293 DOI: 10.1016/j.chemosphere.2021.131921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/11/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
The volume of occurrence data on food and animal feed contaminants such as polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDDs) is slowly increasing as more laboratories develop analytical capability. This data allows an evaluation of current background levels in different countries and regions and is also useful for estimating the health risk through dietary exposure and as evidence for the formulation of future control strategies. Existing data varies in the number of analytes reported and the quality measures applied. In order to ensure reliability and comparability, guidance on analytical criteria such as precision and trueness, limits of quantitation, recovery, positive identification, etc. is provided. These parameters are based on several years of collective experience and allow validation and regular quality control of analysis of individual PBDE congeners and HBCDD stereoisomers. The criteria-based approach also allows laboratories the flexibility to use different analytical methodologies and techniques for generating data. The effectiveness of this approach has been demonstrated by a successful proficiency testing scheme that has been used for a number of years and has attracted an increasing number of participants. The majority of participating laboratories (>80%) have been able to demonstrate performance within the 95% confidence interval (│z-score│≤ 2) and a further 10% of laboratories demonstrated performance with a z-score of (2 <│z-score│< 3). The combined support of these guidance criteria backed by successful proficiency testing will ensure the reliability and comparability of results, in particular, to refine risk assessments and to help the formulation of regulatory policy.
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Affiliation(s)
- Alwyn R Fernandes
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
| | - Theresa Zwickel
- European Union Reference Laboratory (EURL) for Halogenated POPs in Feed and Food, Bissierstraße 5, Freiburg, D-79114, Germany
| | - Alexander Schächtele
- European Union Reference Laboratory (EURL) for Halogenated POPs in Feed and Food, Bissierstraße 5, Freiburg, D-79114, Germany
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24
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Jagić K, Dvoršćak M, Klinčić D. Analysis of brominated flame retardants in the aquatic environment: a review. Arh Hig Rada Toksikol 2021; 72:254-67. [PMID: 34985845 DOI: 10.2478/aiht-2021-72-3576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/01/2021] [Indexed: 11/20/2022] Open
Abstract
The most common and consequently analysed brominated flame retardants (BFRs) are polybrominated biphenyls (PBBs), polybrominated diphenyl ethers (PBDEs), tetrabromobisphenol A (TBBPA), tetrabromobisphenol S (TBBPS), and hexabromocyclododecane (HBCD). As these persistent organic pollutants are widespread in the environment and have a number of harmful effects on human health, the production and use of most has been banned for several years. The aquatic environment is polluted by these compounds through their deposition from the atmosphere, sewage sludge, wastewater treatment plants, and landfills, and higher levels are found in areas with developed industry and agriculture and near landfills. Each compound also seems to show preference for specific compartments of the aquatic environment, i.e. water, sediment, or aquatic organisms, according to their physicochemical properties. The aim of this review was to take a closer look at the analysis of BFRs, as without reliable analysis we would not be able to determine their levels and distribution across the aquatic compartments and assess human exposure and health risks. Particularly worrying are the health risks associated with PBDEs in fish, whose levels generally exceed the permitted values.
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Hanif N, Tyas TA, Hidayati L, Dinelsa FF, Provita D, Kinnary NR, Prasetiawan FM, Khalik GA, Mubarok Z, Tohir D, Setiawan A, Farid M, Kurnianda V, Murni A, de Voogd NJ, Tanaka J. Oxy-Polybrominated Diphenyl Ethers from the Indonesian Marine Sponge, Lamellodysidea herbacea: X-ray, SAR, and Computational Studies. Molecules 2021; 26:molecules26216328. [PMID: 34770740 PMCID: PMC8588277 DOI: 10.3390/molecules26216328] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
Polybrominated diphenyl ether (PBDE) compounds, derived from marine organisms, originate from symbiosis between marine sponges and cyanobacteria or bacteria. PBDEs have broad biological spectra; therefore, we analyzed structure and activity relationships of PBDEs to determine their potential as anticancer or antibacterial lead structures, through reactions and computational studies. Six known PBDEs (1–6) were isolated from the sponge, Lamellodysdiea herbacea; 13C NMR data for compound 6 are reported for the first time and their assignments are confirmed by their theoretical 13C NMR chemical shifts (RMSE < 4.0 ppm). Methylation and acetylation of 1 (2, 3, 4, 5-tetrabromo-6-(3′, 5′-dibromo-2′-hydroxyphenoxy) phenol) at the phenol functional group gave seven molecules (7–13), of which 10, 12, and 13 were new. New crystal structures for 8 and 9 are also reported. Debromination carried out on 1 produced nine compounds (1, 2, 14, 16–18, 20, 23, and 26) of which 18 was new. Debromination product 16 showed a significant IC50 8.65 ± 1.11; 8.11 ± 1.43 µM against human embryonic kidney (HEK293T) cells. Compounds 1 and 16 exhibited antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Klebsiella pneumoniae with MID 0.078 µg/disk. The number of four bromine atoms and two phenol functional groups are important for antibacterial activity (S. aureus and K. pneumoniae) and cytotoxicity (HEK293T). The result was supported by analysis of frontier molecular orbitals (FMOs). We also propose possible products of acetylation and debromination using analysis of FMOs and electrostatic charges and we confirm the experimental result.
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Affiliation(s)
- Novriyandi Hanif
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
- Correspondence: ; Tel.: +62-(251)-862-4567
| | - Trianda Ayuning Tyas
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
| | - Lestari Hidayati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Fabians Faisal Dinelsa
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Dian Provita
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Nyimas Ratna Kinnary
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Fauzi Muhamad Prasetiawan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Gibral Abdul Khalik
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Zaki Mubarok
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Dudi Tohir
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Andi Setiawan
- Department of Chemistry, Lampung University, Bandar Lampung 35145, Indonesia;
| | - Muhamad Farid
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia; (T.A.T.); (L.H.); (F.F.D.); (D.P.); (N.R.K.); (F.M.P.); (G.A.K.); (Z.M.); (D.T.); (M.F.)
| | - Viqqi Kurnianda
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
| | - Anggia Murni
- Tropical Biopharmaca Research Center, IPB University, Bogor 16128, Indonesia;
| | - Nicole J. de Voogd
- Institute of Environmental Sciences (CML) Leiden University, P.O. Box 9518, 2300 RA Leiden, The Netherlands;
- Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Junichi Tanaka
- Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara 903-0213, Okinawa, Japan; (V.K.); (J.T.)
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26
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Dreyer A, Neugebauer F, Lohmann N, Rüdel H, Tarricone K, Rauert C, Koschorreck J. Long-term trends of airborne halogenated flame retardants (HFRs) by means of tree leaf and shoot analyses. Environ Pollut 2021; 287:117342. [PMID: 34023657 DOI: 10.1016/j.envpol.2021.117342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/26/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
The historical air pollution with halogenated flame retardants (HFRs) in Germany was assessed by investigating tree leaf and shoot samples which have been archived in the German environmental specimen bank. Samples covered the period from 1985 to 2016. 43 HFRs comprising polybrominated diphenyl ethers as well as emerging brominated and chlorinated compounds such as Dechlorane Plus, DBDPE, or DPTE, were analysed in 115 samples from ten sub sites originating from six areas characterised by different land uses, including urban as well as a background site. HFRs were observed in each sample showing the widespread distribution of HFRs in Germany in tree leaves and shoots as bioindicators of past and present atmospheric pollution. Analytes observed at elevated concentrations were BDE 209, DBDPE and DPTE. Observed HFR-levels differed between analytes as well as sampling locations, particularly prior to the year 2000. They were typically highest at conurbation areas. Concentrations at the background site often belonged to the lowest ones observed, however, lowest values were not exclusively found there. The quantification frequencies appeared to decrease from the past to most recent samples. With few exceptions, atmospheric pollution of both, legacy and emerging HFRs, decreased significantly.
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Affiliation(s)
| | | | | | - Heinz Rüdel
- Fraunhofer Institute for Molecular Biology and Applied Ecology (Fraunhofer IME), Schmallenberg, Germany
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Pietron WJ, Warenik-Bany M, Wozniak B. Polybrominated diphenyl ethers (PBDEs) in raw milk from different animal species and in infant formula. Occurrence and risk assessment. Chemosphere 2021; 278:130479. [PMID: 34126691 DOI: 10.1016/j.chemosphere.2021.130479] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 11/17/2020] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 05/06/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are widespread, persistent in the environment, and classified as global pollutants. Their presence has been confirmed in various types of food which adversely affect human health when consumed in sufficient amounts. Although milk has advantageous nutritional qualities and there are health benefits associated with its consumption, it could also contain toxic PBDEs. The aim of the study was the determination of the concentrations of ten congeners (BDE -28, -47, -49, -99, -100, -138, -153, -154, -183, and 209) in cow's, sheep's, and goat's milk obtained from Polish farms and their determination in infant formula. A total of 103 samples of raw milk and infant formula were tested using an accredited high-resolution gas chromatography-high-resolution mass spectrometry method. PBDEs were detected in all analyzed samples, the highest concentration being found in sheep's milk (11.9 ng g-1 fat), and cow's milk containing the least contamination. BDE-209 makes the predominant contribution to the sum of the ten congeners, constituting at least 38%. The profiles of PBDEs were dependent on the milk type and the differences between its varieties are discussed. The highest median concentration of the sum of ten PBDEs (0.473 ng g-1 fat) was determined in infant formula, which was identified as an important source of infants' exposure (5.48 ng kg-1 b.w. day-1 calculated based on P95 concentration). Milk is a source of PBDE in the diet; however, considered in isolation its consumption does not pose a risk to either adults' or children's health.
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Affiliation(s)
- Wojciech Jerzy Pietron
- Radiobiology Department, National Veterinary Research Institute (NVRI), 57 Partyzantow Avenue, 24-100, Pulawy, Poland.
| | - Malgorzata Warenik-Bany
- Radiobiology Department, National Veterinary Research Institute (NVRI), 57 Partyzantow Avenue, 24-100, Pulawy, Poland
| | - Barbara Wozniak
- Pharmacology and Toxicology Department, National Veterinary Research Institute (NVRI), 57 Partyzantow Avenue, 24-100, Pulawy, Poland
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28
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Gomez MV, Dutta M, Suvorov A, Shi X, Gu H, Mani S, Yue Cui J. Early Life Exposure to Environmental Contaminants (BDE-47, TBBPA, and BPS) Produced Persistent Alterations in Fecal Microbiome in Adult Male Mice. Toxicol Sci 2021; 179:14-30. [PMID: 33078840 DOI: 10.1093/toxsci/kfaa161] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 12/13/2022] Open
Abstract
The gut microbiome is a pivotal player in toxicological responses. We investigated the effects of maternal exposure to 3 human health-relevant toxicants (BDE-47, tetrabromobisphenol [TBBPA], and bisphenol S [BPS]) on the composition and metabolite levels (bile acids [BAs] and short-chain fatty acids [SCFAs]) of the gut microbiome in adult pups. CD-1 mouse dams were orally exposed to vehicle (corn oil, 10 ml/kg), BDE-47 (0.2 mg/kg), TBBPA (0.2 mg/kg), or BPS (0.2 mg/kg) once daily from gestational day 8 to the end of lactation (postnatal day 21). 16S rRNA sequencing and targeted metabolomics were performed in feces of 20-week-old adult male pups (n = 14 - 23/group). Host gene expression and BA levels were quantified in liver. BPS had the most prominent effect on the beta-diversity of the fecal microbiome compared with TBPPA and BDE-47 (QIIME). Seventy-three taxa were persistently altered by at least 1 chemical, and 12 taxa were commonly regulated by all chemicals (most of which were from the Clostridia class and were decreased). The most distinct microbial biomarkers were S24-7 for BDE-47, Rikenellaceae for TBBPA, and Lactobacillus for BPS (LefSe). The community-wide contributions to the shift in microbial pathways were predicted using FishTaco. Consistent with FishTaco predictions, BDE-47 persistently increased fecal and hepatic BAs within the 12α hydroxylation pathway, corresponding to an up-regulation with the hepatic BA-synthetic enzyme Cyp7a1. Fecal BAs were also persistently up-regulated by TBBPA and BPS (liquid chromatography-mass spectrometry). TBBPA increased propionic acid and succinate, whereas BPS decreased acetic acid (gas chromatography-mass spectrometry). There was a general trend in the hepatic down-regulation of proinflammatory cytokines and the oxidative stress sensor target gene (Nqo1), and a decrease in G6Pdx (the deficiency of which leads to dyslipidemia). In conclusion, maternal exposure to these toxicants persistently modified the gut-liver axis, which may produce an immune-suppressive and dyslipidemia-prone signature later in life.
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Affiliation(s)
- Matthew V Gomez
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Moumita Dutta
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
| | - Alexander Suvorov
- Environmental Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Xiaojian Shi
- College of Health Solutions, Arizona State University, Tempe, Arizona, USA
| | - Haiwei Gu
- College of Health Solutions, Arizona State University, Tempe, Arizona, USA
| | - Sridhar Mani
- Albert Einstein College of Medicine, Bronx, New York, USA
| | - Julia Yue Cui
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, Washington, USA
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Gilmour ME, Lewis PJ, Paige T, Lavers JL. Persistent organic pollutant (POPs) concentrations from great-winged petrels nesting in Western Australia. Mar Pollut Bull 2021; 168:112396. [PMID: 33894588 DOI: 10.1016/j.marpolbul.2021.112396] [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: 02/09/2021] [Revised: 04/07/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Marine animals that traverse coastal and offshore environments are potentially exposed to multiple sources of pollution. Baseline data of pollutant concentrations of these fauna are needed in remote areas as human populations grow and economic development increases because changes may affect local wildlife in unforeseen ways. Persistent organic pollutant (POPs) concentrations were quantified in an understudied seabird, the great-winged petrel (Pterodroma macroptera), that breeds in southern Western Australia. Organochlorine pesticides, polychlorinated biphenyls (PCBs), and novel brominated flame retardants (NBFRs) were measured in adults. Total POPs concentrations ranged 5.6-46.4 ng g-1 ww. The most frequently detected POPs were the dichlorodiethyltrichloroethane (DDT) metabolite 4,4'DDE, the PCB CB-28, and the BFR polybrominated diphenyl ether BDE-99. These results contribute to the limited POPs data in marine fauna in this remote region, and the Southern Hemisphere, adding to the growing body of evidence that remote regions are affected by global trends of POPs distributions.
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Affiliation(s)
- Morgan E Gilmour
- Ocean Sciences Department, University of California Santa Cruz, Santa Cruz, CA 95060, USA; Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Tasmania 7004, Australia.
| | - Phoebe J Lewis
- Centre for Environmental Sustainability and Remediation (EnSuRe), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Tanya Paige
- Centre for Environmental Sustainability and Remediation (EnSuRe), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Jennifer L Lavers
- Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Tasmania 7004, Australia
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van der Schyff V, Kwet Yive NSC, Polder A, Cole NC, Tatayah V, Kylin H, Bouwman H. Persistent organic pollutants in sea bird eggs from the Indian Ocean's Mascarene Basin. Sci Total Environ 2021; 771:145348. [PMID: 33540163 DOI: 10.1016/j.scitotenv.2021.145348] [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: 06/15/2020] [Revised: 01/07/2021] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
We report the concentrations of persistent organic pollutants (POPs) in seabird eggs from St. Brandon's Atoll, a tropical island system in the western Indian Ocean. Ten eggs each of sooty terns (Onychoprion fuscatus), fairy terns (Gygis alba), and common noddies (Anous stolidus) were collected from the atoll. For a terrestrial reference, we analysed three feral chicken (Gallus gallus domesticus) eggs from the same location. Sooty tern eggs contained the highest mean concentrations of three chemical classes: ƩCHL3 (0.21 ng/g wm; wet mass), ƩPCB10 (1.5 ng/g wm), and ƩPBDE6 (1.1 ng/g wm). Fairy tern eggs contained the highest mean concentrations of HCB (0.68 ng/g wm) and ƩCHB5 (0.83 ng/g wm). The chicken eggs contained the highest mean concentrations of ƩDDT3 (2.6 ng/g wm), while common noddy eggs contained the highest mean concentrations of ƩHCH2 (0.5 ng/g wm). We surmise that the differences in chemical composition between species reflect different pollutant compositions in prey from the bird's different foraging ranges. The sooty terns foraging offshore contained higher POPs concentrations than the nearshore-foraging common noddies. Fairy tern eggs contained intermediate concentrations, commensurate with their intermediate foraging. Inter-island differences in contaminant concentrations were seen between eggs of the common noddies from St. Brandon's Atoll and Rodrigues Island, 520 km to the south-east. Concentrations of contaminants found in this study were lower than values quantified by other studies, making St. Brandon's Atoll an ideal reference site to monitor background concentrations of POPs in the tropical Indian Ocean.
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Affiliation(s)
- Veronica van der Schyff
- Research Unit, Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
| | | | - Anuschka Polder
- Research Unit, Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Faculty of Veterinary Medicine, Norwegian University of Life Sciences (NMBU), 0033 Oslo, Norway
| | - Nik C Cole
- Research Unit, Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Durrell Wildlife Conservation Trust, Les Augrès Manor, Trinity, Jersey Channel Islands, UK; Mauritian Wildlife Foundation, Grannum Road, Vacoas, Mauritius
| | - Vikash Tatayah
- Mauritian Wildlife Foundation, Grannum Road, Vacoas, Mauritius
| | - Henrik Kylin
- Research Unit, Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Department of Water and Environmental Studies, Linköping University, Linköping, Sweden
| | - Hindrik Bouwman
- Research Unit, Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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Lindqvist D, Gustafsson J. Degradation of naturally produced hydroxylated polybrominated diphenyl ethers in Baltic Sea sediment via reductive debromination. Environ Sci Pollut Res Int 2021; 28:25878-25885. [PMID: 33475918 PMCID: PMC8154838 DOI: 10.1007/s11356-021-12462-3] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Over the last two decades, the occurrence of hydroxylated polybrominated diphenyl ethers (OH-PBDEs) has been observed to be nearly ubiquitous among Baltic Sea filamentous macroalgae. High concentrations are continuously recorded among red, green, and brown filamentous algae. Several of these algae species are ephemeral, and when large parts of the colonies decay at the end of their lifecycles, the OH-PBDEs are expected to largely partition to the sediment. In this study, the fate of OH-PBDEs in Baltic Sea sediment was investigated, with focus on the effect of reductive debromination. During chemical debromination, it was observed that the half-life could differ with as much as two orders of magnitude between a pentabrominated and a tetrabrominated congener. Using collected Baltic Sea sediment, it was further observed that the half-life of spiked pentabrominated OH-PBDEs spanned from a few days up to a few weeks in room temperature. At 4 °C, it took 6 months to achieve a 50% decrease in concentration of the fasted degrading congener. Clear differences in selectivity between chemical debromination and debromination in sediment were also observed when studying the major reaction products. Baltic Sea sediment seems to have a good capacity for reducing naturally produced OH-PBDEs.
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Affiliation(s)
- Dennis Lindqvist
- Department of Environmental science, Stockholm University, SE-106 91, Stockholm, Sweden.
| | - Johan Gustafsson
- Department of Environmental science, Stockholm University, SE-106 91, Stockholm, Sweden
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Schmitt L, Hinxlage I, Cea PA, Gohlke H, Wesselborg S. 40 Years of Research on Polybrominated Diphenyl Ethers ( PBDEs)-A Historical Overview and Newest Data of a Promising Anticancer Drug. Molecules 2021; 26:995. [PMID: 33668501 DOI: 10.3390/molecules26040995] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/29/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of molecules with an ambiguous background in literature. PBDEs were first isolated from marine sponges of Dysidea species in 1981 and have been under continuous research to the present day. This article summarizes the two research aspects, (i) the marine compound chemistry research dealing with naturally produced PBDEs and (ii) the environmental toxicology research dealing with synthetically-produced brominated flame-retardant PBDEs. The different bioactivity patterns are set in relation to the structural similarities and dissimilarities between both groups. In addition, this article gives a first structure-activity relationship analysis comparing both groups of PBDEs. Moreover, we provide novel data of a promising anticancer therapeutic PBDE (i.e., 4,5,6-tribromo-2-(2',4'-dibromophenoxy)phenol; termed P01F08). It has been known since 1995 that P01F08 exhibits anticancer activity, but the detailed mechanism remains poorly understood. Only recently, Mayer and colleagues identified a therapeutic window for P01F08, specifically targeting primary malignant cells in a low µM range. To elucidate the mechanistic pathway of cell death induction, we verified and compared its cytotoxicity and apoptosis induction capacity in Ramos and Jurkat lymphoma cells. Moreover, using Jurkat cells overexpressing antiapoptotic Bcl-2, we were able to show that P01F08 induces apoptosis mainly through the intrinsic mitochondrial pathway.
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33
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Babut M, Marchand P, Venisseau A, Veyrand B, Ferrari BJD. Legacy and alternative halogenated flame retardants in Lake Geneva fish. Environ Sci Pollut Res Int 2021; 28:7766-7773. [PMID: 33033932 DOI: 10.1007/s11356-020-11118-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
Legacy (i.e., polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDD)) and alternative halogenated flame retardants (HFRs) were analyzed in 31 whole fish samples from Lake Geneva in 2018. Two fish species, namely, the burbot (Lota lota) and the roach (Rutilus rutilus), were selected, hypothetically representing different habitats, feeding behaviors, and different metabolic capacities. Roach (N = 20) and burbot (N = 11) displayed similar size and mass, but the latter species was overall leaner than the former. The sum of individual PBDE concentrations (0.54-9.86 ng g-1 wet weight (ww)) was similar in both species, but the respective molecular profiles suggested contrasted metabolic capacities. HBCDD sum of isomer concentrations ranged from non-detected to 3.477 ng g-1 (ww), also similar in both species. Both PBDEs and HBCDD levels were far below the threshold that indicates a risk to fish predators. Referring to previous surveys, which involved a wider range of species, PBDE concentrations have declined or are stable. HBCDD concentrations remained low, despite the PBDE ban, which could have fostered the consumption of other HFRs. The occurrence of alternative HFRs was also low for most compounds analyzed. Only dechloranes and decabromodiphenyl ethane (DBDPE) had detection rates above 50%. Dechloranes spanned a concentration range between 5 and 10 times the quantification limits (0.002 to 0.005 ng g-1 wet weight), lower than DBDPE (< 0.005 to 2.89 ng g-1 wet weight). Quality standards targeting biota are currently missing for these emerging chemicals.
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Affiliation(s)
- Marc Babut
- INRAE, RIVERLY, 5 rue de la Doua CS 20244, F-69625, Villeurbanne, France.
- CIPEL Scientific Council, Agroscope Changins Bâtiment DC Route de Duillier 50 Case postale 1080, CH-1260, Nyon, Switzerland.
| | - Philippe Marchand
- LABERCA, Oniris, INRA, Université Bretagne Loire, F-44307, Nantes, France
| | - Anaïs Venisseau
- LABERCA, Oniris, INRA, Université Bretagne Loire, F-44307, Nantes, France
| | - Bruno Veyrand
- LABERCA, Oniris, INRA, Université Bretagne Loire, F-44307, Nantes, France
| | - Benoit J D Ferrari
- CIPEL Scientific Council, Agroscope Changins Bâtiment DC Route de Duillier 50 Case postale 1080, CH-1260, Nyon, Switzerland
- Swiss Centre for Applied Ecotoxicology, EPFL ENAC IIE-GE, Station 2, CH-1015, Lausanne, Switzerland
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Pilsner JR, Shershebnev A, Wu H, Marcho C, Dribnokhodova O, Shtratnikova V, Sergeyev O, Suvorov A. Aging-induced changes in sperm DNA methylation are modified by low dose of perinatal flame retardants. Epigenomics 2021; 13:285-297. [PMID: 33401928 DOI: 10.2217/epi-2020-0404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 12/22/2022] Open
Abstract
Aims: Paternal age is increasing in developed countries. Understanding of aging-related epigenetic changes in sperm is needed as well as factors that modify such changes. Materials & methods: Young pubertal and mature rats were exposed perinatally to vehicle or environmental xenobiotic 2,2',4,4'-tetrabromodiphenyl ether. Epididymal sperm was reduced representation bisulfite sequenced. Differentially methylated regions (DMRs) were identified via MethPipe. Results: In control animals, 5319 age-dependent DMRs were identified. Age-related DMRs were enriched for embryonic development. In exposed rats, DNA methylation was higher in young and lower in mature animals then in controls. Conclusions: Sperm methylome undergoes significant age-dependent changes, which may represent a causal link between paternal age and offspring phenotype. Environmental xenobiotics can interfere with the natural process of epigenetic aging.
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Affiliation(s)
- J Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Alex Shershebnev
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | - Chelsea Marcho
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA
| | | | | | | | - Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA.,Federal Budget Institution of Science Central Research Institute of Epidemiology of The Federal Service on Customers' Rights Protection & Human Well-being Surveillance, Novogireevskaya .3a, Moscow 111123, Russia
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Messina CM, Espinosa Ruiz C, Regoli F, Manuguerra S, D'Agostino F, Avellone G, Sprovieri M, Santulli A. BDE-47 exposure modulates cellular responses, oxidative stress and biotransformation related-genes in Mytilus galloprovincialis. Fish Shellfish Immunol 2020; 107:537-546. [PMID: 33217565 DOI: 10.1016/j.fsi.2020.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 08/10/2020] [Revised: 11/10/2020] [Accepted: 11/14/2020] [Indexed: 06/11/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are flame retardants, characterized by elevated stability in the marine environment, where are accumulated by organisms, inducing a wide panel of negative effects. In this study, some biochemical patterns related to toxicity, biotransformation and oxidative stress, were studied in the marine model system, Mytilus galloprovincialis, exposed to BDE-47. Mussels were fed with microalgae, previously treated with increasing concentrations of PBDEs (maximum dose 100 ng L-1 of BDE-47 per day). After 15 days of treatment, mussels were fed with the same diet without BDE-47, for additional 15 days. Gills and digestive glands were analyzed at T 0, at 15 and 30 days. Histopathological lesions were assessed in digestive glands of contaminated mussels, while expression of genes, related to cell cycle, multidrug resistance, oxidative stress and detoxification was evaluated on both gills and digestive glands. After 15 days, BDE-47 exposure significantly affected the cell activity in digestive gland and, at 30 days, only mussels exposed to the lower doses showed a certain recovery. Regarding the gene expression, both gills and digestive glands showed a significant down-regulation of the target genes at 15 days, although most of them were up-regulated at 30 days in digestive gland. The results on BDE-47 accumulation in mussels revealed a dose-dependent concentration in tissues, which remained elevated after further 15 days of depuration. This trend supports the responses of the biomarkers, indicating that exposure, at environmentally realistic concentrations of BDE-47, strongly modulates oxidative stress and related patterns of gene expression, suggesting concerns for long-term effect in the biota.
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Affiliation(s)
- Concetta Maria Messina
- University of Palermo, Dept. of Earth and Marine Science DISTEM, Laboratory of Marine Biochemistry and Ecotoxicology, Via Barlotta 4, 91100, Trapani, Italy; Istituto per lo studio degli impatti Antropici e Sostenibilità in ambiente marino (IAS), Consiglio Nazionale delle Ricerche. Capo Granitola, Trapani, Italy.
| | - Cristobal Espinosa Ruiz
- University of Palermo, Dept. of Earth and Marine Science DISTEM, Laboratory of Marine Biochemistry and Ecotoxicology, Via Barlotta 4, 91100, Trapani, Italy
| | - Francesco Regoli
- Dipartimento di Scienze della Vita e dell'Ambiente (DiSVA), Università Politecnica delle Marche, Ancona, Italy
| | - Simona Manuguerra
- University of Palermo, Dept. of Earth and Marine Science DISTEM, Laboratory of Marine Biochemistry and Ecotoxicology, Via Barlotta 4, 91100, Trapani, Italy
| | - Fabio D'Agostino
- Istituto per lo studio degli impatti Antropici e Sostenibilità in ambiente marino (IAS), Consiglio Nazionale delle Ricerche. Capo Granitola, Trapani, Italy
| | - Giuseppe Avellone
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, Università degli Studi di Palermo, via Archirafi 32, 90123, Palermo, Italy
| | - Mario Sprovieri
- Istituto per lo studio degli impatti Antropici e Sostenibilità in ambiente marino (IAS), Consiglio Nazionale delle Ricerche. Capo Granitola, Trapani, Italy
| | - Andrea Santulli
- University of Palermo, Dept. of Earth and Marine Science DISTEM, Laboratory of Marine Biochemistry and Ecotoxicology, Via Barlotta 4, 91100, Trapani, Italy; Istituto per lo studio degli impatti Antropici e Sostenibilità in ambiente marino (IAS), Consiglio Nazionale delle Ricerche. Capo Granitola, Trapani, Italy; Consorzio Universitario della Provincia di Trapani, Marine Biology Institute. Via Barlotta 4, 91100, Trapani, Italy
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36
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Suvorov A, Pilsner JR, Naumov V, Shtratnikova V, Zheludkevich A, Gerasimov E, Logacheva M, Sergeyev O. Aging Induces Profound Changes in sncRNA in Rat Sperm and These Changes Are Modified by Perinatal Exposure to Environmental Flame Retardant. Int J Mol Sci 2020; 21:E8252. [PMID: 33158036 PMCID: PMC7672616 DOI: 10.3390/ijms21218252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Advanced paternal age at fertilization is a risk factor for multiple disorders in offspring and may be linked to age-related epigenetic changes in the father's sperm. An understanding of aging-related epigenetic changes in sperm and environmental factors that modify such changes is needed. Here, we characterize changes in sperm small non-coding RNA (sncRNA) between young pubertal and mature rats. We also analyze the modification of these changes by exposure to environmental xenobiotic 2,2',4,4'-tetrabromodiphenyl ether (BDE-47). sncRNA libraries prepared from epididymal spermatozoa were sequenced and analyzed using DESeq 2. The distribution of small RNA fractions changed with age, with fractions mapping to rRNA and lncRNA decreasing and fractions mapping to tRNA and miRNA increasing. In total, 249 miRNA, 908 piRNA and 227 tRNA-derived RNA were differentially expressed (twofold change, false discovery rate (FDR) p ≤ 0.05) between age groups in control animals. Differentially expressed miRNA and piRNA were enriched for protein-coding targets involved in development and metabolism, while piRNA were enriched for long terminal repeat (LTR) targets. BDE-47 accelerated age-dependent changes in sncRNA in younger animals, decelerated these changes in older animals and increased the variance in expression of all sncRNA. Our results indicate that the natural aging process has profound effects on sperm sncRNA profiles and this effect may be modified by environmental exposure.
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Affiliation(s)
- Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA;
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
| | - J. Richard Pilsner
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, 686 North Pleasant Street, Amherst, MA 01003, USA;
| | - Vladimir Naumov
- Bioinformatics Laboratory, Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology Ministry of Health of the Russian Federation, Oparina 4, 117997 Moscow, Russia;
| | - Victoria Shtratnikova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
| | | | - Evgeny Gerasimov
- E.I. Martsinovsky Institute of Medical Parasitology and Tropical Medicine, I.M. Sechenov First Moscow State Medical University, 20 Malaya Pirogovskaya, 119435 Moscow, Russia;
- Faculty of Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Maria Logacheva
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
- Center for Life Sciences, Skolkovo Institute of Science and Technology, 143028 Moscow, Russia
| | - Oleg Sergeyev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia; (V.S.); (M.L.); (O.S.)
- Chapaevsk Medical Association, Meditsinskaya Str. 3a, Samara Region, 446100 Chapaevsk, Russia
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Banda JA, Gefell D, An V, Bellamy A, Biesinger Z, Boase J, Chiotti J, Gorsky D, Robinson T, Schlueter S, Withers J, Hummel SL. Characterization of pharmaceuticals, personal care products, and polybrominated diphenyl ethers in lake sturgeon serum and gametes. Environ Pollut 2020; 266:115051. [PMID: 32640408 DOI: 10.1016/j.envpol.2020.115051] [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: 02/18/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
Recent research suggests contaminants of emerging concern (CECs) are widespread and environmentally relevant concentrations can impact fishes. However, little is known about impacts of CECs to long-lived or rare species. The objective of this study was to characterize CEC concentrations in lake sturgeon (Acipenser fulvescens) serum and gametes. Blood serum was collected non-lethally from lake sturgeon at four lower Great Lakes basin sites: Detroit, upper Niagara, lower Niagara, and St. Lawrence rivers; additionally, gametes were collected from lake sturgeon in the St. Lawrence River. Samples were analyzed for pharmaceuticals and personal care products (PPCPs) and polybrominated diphenyl ethers (PBDEs). Overall, 44 different PPCPs were identified in serum and gamete samples across sites, with 22 PPCPs identified in at least 25% of serum samples and three PPCPs identified in 25% of gamete samples. PPCP concentrations in serum and gametes ranged from 0.00208 to 130 ppb and 0.00538-190 ppb, respectively. NMDS ordination revealed differences in the presence and concentrations of PPCPs in lake sturgeon serum across sites, however, N,N-diethyl-meta-toluamide (DEET), hydrocortisone, benztropine, and amitriptyline were detected in at least one serum sample at all sites. Additionally, DEET, 10-hydroxy-amitriptyline, and sertraline were detected in ≥25% of gamete samples collected from the St. Lawrence River. Twenty-six PBDE congeners were identified in 25% of serum samples and 24 were identified in 25% of gamete samples. PBDEs in serum were present across all sites and in gametes of St. Lawrence River lake sturgeon, and total PBDE concentrations in serum and gametes ranged from 0.184 to 12.7 ppb and 0.0826-0.44 ppb, respectively. Managers of lake sturgeon populations may need to consider the impacts of CECs if reproductive, developmental, behavioral, growth effects, or mortality are observed in the Great Lakes basin or other areas that are impacted by increased exposures to PPCPs and PBDEs.
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Affiliation(s)
- Jo A Banda
- U.S. Fish and Wildlife Service, 4625 Morse Road, Suite 104, Columbus, OH, 43230, USA
| | - Dan Gefell
- U.S. Fish and Wildlife Service, 3817 Luker Road, Cortland, NY, 13045, USA
| | - Viktoriya An
- Department of Mathematics & Statistics, University of Wyoming, Laramie, WY, 82071-3332, USA
| | - Amber Bellamy
- U.S. Fish and Wildlife Service, 5600 American Blvd. West, Suite 990, Bloomington, MN, 55437, USA
| | - Zy Biesinger
- U.S. Fish and Wildlife Service, 1101 Casey Road, Basom, New York, 14013, USA
| | - James Boase
- Alpena Fish and Wildlife Conservation Office-Detroit River Substation, John D Dingell Visitor Center, 5437 West Jefferson Ave., Trenton, MI, 48183, USA
| | - Justin Chiotti
- Alpena Fish and Wildlife Conservation Office-Detroit River Substation, John D Dingell Visitor Center, 5437 West Jefferson Ave., Trenton, MI, 48183, USA
| | - Dimitry Gorsky
- U.S. Fish and Wildlife Service, 1101 Casey Road, Basom, New York, 14013, USA
| | - Timothy Robinson
- Department of Mathematics & Statistics, University of Wyoming, Laramie, WY, 82071-3332, USA
| | - Scott Schlueter
- U.S. Fish and Wildlife Service, 3817 Luker Road, Cortland, NY, 13045, USA
| | - Jonah Withers
- U.S. Fish and Wildlife Service, Northeast Fishery Center, P.O. Box 75, Lamar, PA, 16848, USA
| | - Stephanie L Hummel
- U.S. Fish and Wildlife Service, 5600 American Blvd. West, Suite 990, Bloomington, MN, 55437, USA.
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Fent KW, LaGuardia M, Luellen D, McCormick S, Mayer A, Chen IC, Kerber S, Smith D, Horn GP. Flame retardants, dioxins, and furans in air and on firefighters' protective ensembles during controlled residential firefighting. Environ Int 2020; 140:105756. [PMID: 32388249 PMCID: PMC9989945 DOI: 10.1016/j.envint.2020.105756] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/01/2020] [Accepted: 04/20/2020] [Indexed: 05/20/2023]
Abstract
INTRODUCTION Structure fires that involve modern furnishings may emit brominated flame retardants (BFRs) and organophosphate flame retardants (OPFRs), as well as brominated and chlorinated dioxins and furans, into the environment. OBJECTIVES The goal of this study was to quantify the airborne and personal protective equipment (PPE) contamination levels of these compounds during controlled residential fires in the U.S., and to evaluate gross-decontamination measures. METHODS Bulk-sampling was done to confirm the presence of flame retardants (FRs) in the furnishings used in 12 controlled residential structure fires. Area air samples were collected during the fires and PPE wipe samples were collected from the firefighters' turnout jackets and gloves after firefighting. For each fire, half of the jackets were decontaminated and the other half were not. RESULTS Of the BFRs and OPFRs measured in air during the fire period, decabromodiphenyl ether (BDE-209) and triphenyl phosphate (TPP) were the most abundant, with medians of 15.6 and 408 µg/m3, respectively, and were also detected during overhaul. These and several other BFRs and OPFRs were measured on PPE. Some gloves had contaminant levels exceeding 100 ng/cm2 and were generally more contaminated than jackets. Air and surface levels of the brominated furans appeared to be higher than the chlorinated dioxins and furans. Routine gross decontamination appeared to reduce many of the BFR contaminants, but results for the OPFRs were mixed. CONCLUSIONS Structure fires are likely to result in a variety of FRs, dioxins, and furans into the environment, leading to PPE contamination for those working on the fireground. Firefighters should wear self-contained breathing apparatus during all phases of the response and launder or decontaminate their PPE (including gloves) after fire events.
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Affiliation(s)
- Kenneth W Fent
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention, Cincinnati, OH, USA.
| | - Mark LaGuardia
- Department of Aquatic Health Sciences, Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA, USA
| | - Drew Luellen
- Department of Aquatic Health Sciences, Virginia Institute of Marine Science, William & Mary, Gloucester Point, VA, USA
| | - Seth McCormick
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention, Cincinnati, OH, USA
| | - Alexander Mayer
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention, Cincinnati, OH, USA
| | - I-Chen Chen
- Division of Field Studies and Engineering, National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention, Cincinnati, OH, USA
| | - Steve Kerber
- Firefighter Safety Research Institute, Underwriters Laboratories, Columbia, MD, USA
| | - Denise Smith
- Health and Human Physiological Sciences Department, Skidmore College, Saratoga Springs, NY, USA; Illinois Fire Service Institute, University of Illinois at Urbana-Champaign, IL, USA
| | - Gavin P Horn
- Firefighter Safety Research Institute, Underwriters Laboratories, Columbia, MD, USA; Illinois Fire Service Institute, University of Illinois at Urbana-Champaign, IL, USA
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Podell S, Blanton JM, Oliver A, Schorn MA, Agarwal V, Biggs JS, Moore BS, Allen EE. A genomic view of trophic and metabolic diversity in clade-specific Lamellodysidea sponge microbiomes. Microbiome 2020; 8:97. [PMID: 32576248 PMCID: PMC7313196 DOI: 10.1186/s40168-020-00877-y] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 05/28/2020] [Indexed: 05/09/2023]
Abstract
BACKGROUND Marine sponges and their microbiomes contribute significantly to carbon and nutrient cycling in global reefs, processing and remineralizing dissolved and particulate organic matter. Lamellodysidea herbacea sponges obtain additional energy from abundant photosynthetic Hormoscilla cyanobacterial symbionts, which also produce polybrominated diphenyl ethers (PBDEs) chemically similar to anthropogenic pollutants of environmental concern. Potential contributions of non-Hormoscilla bacteria to Lamellodysidea microbiome metabolism and the synthesis and degradation of additional secondary metabolites are currently unknown. RESULTS This study has determined relative abundance, taxonomic novelty, metabolic capacities, and secondary metabolite potential in 21 previously uncharacterized, uncultured Lamellodysidea-associated microbial populations by reconstructing near-complete metagenome-assembled genomes (MAGs) to complement 16S rRNA gene amplicon studies. Microbial community compositions aligned with sponge host subgroup phylogeny in 16 samples from four host clades collected from multiple sites in Guam over a 3-year period, including representatives of Alphaproteobacteria, Gammaproteobacteria, Oligoflexia, and Bacteroidetes as well as Cyanobacteria (Hormoscilla). Unexpectedly, microbiomes from one host clade also included Cyanobacteria from the prolific secondary metabolite-producer genus Prochloron, a common tunicate symbiont. Two novel Alphaproteobacteria MAGs encoded pathways diagnostic for methylotrophic metabolism as well as type III secretion systems, and have been provisionally assigned to a new order, designated Candidatus Methylospongiales. MAGs from other taxonomic groups encoded light-driven energy production pathways using not only chlorophyll, but also bacteriochlorophyll and proteorhodopsin. Diverse heterotrophic capabilities favoring aerobic versus anaerobic conditions included pathways for degrading chitin, eukaryotic extracellular matrix polymers, phosphonates, dimethylsulfoniopropionate, trimethylamine, and benzoate. Genetic evidence identified an aerobic catabolic pathway for halogenated aromatics that may enable endogenous PBDEs to be used as a carbon and energy source. CONCLUSIONS The reconstruction of high-quality MAGs from all microbial taxa comprising greater than 0.1% of the sponge microbiome enabled species-specific assignment of unique metabolic features that could not have been predicted from taxonomic data alone. This information will promote more representative models of marine invertebrate microbiome contributions to host bioenergetics, the identification of potential new sponge parasites and pathogens based on conserved metabolic and physiological markers, and a better understanding of biosynthetic and degradative pathways for secondary metabolites and halogenated compounds in sponge-associated microbiota. Video Abstract.
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Affiliation(s)
- Sheila Podell
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
| | - Jessica M Blanton
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
| | - Aaron Oliver
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
| | - Michelle A Schorn
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Vinayak Agarwal
- School of Chemistry and Biochemistry and School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jason S Biggs
- University of Guam Marine Laboratory, UoG Station, Mangilao, GU, USA
| | - Bradley S Moore
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA
| | - Eric E Allen
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA.
- Division of Biological Sciences, University of California, San Diego, La Jolla, CA, USA.
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40
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Zhang T, Zhou X, Xu A, Tian Y, Wang Y, Zhang Y, Gu Q, Wang S, Wang Z. Toxicity of polybrominated diphenyl ethers ( PBDEs) on rodent male reproductive system: A systematic review and meta-analysis of randomized control studies. Sci Total Environ 2020; 720:137419. [PMID: 32325560 DOI: 10.1016/j.scitotenv.2020.137419] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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: 10/28/2019] [Revised: 02/14/2020] [Accepted: 02/17/2020] [Indexed: 06/11/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of environmental endocrine-disrupting chemicals (EDCs). According to recent studies, the associations between PBDEs and rodent male reproductive system are controversial. Therefore, we performed this systematic review and meta-analysis to clarify the effects of PBDEs on rodent male reproductive system. Data were extracted from articles collected from PubMed, Web of Science, and other databases. The pooled standard mean deviation (SMD) with 95% confidence interval (95% CI) was used to evaluate the association between the male rodent reproductive system impairment and PBDE exposure. Ten articles were included in the present meta-analysis and systematic review. The summary SMD of reproductive toxicity associated with PBDEs was -0.46 (95% CI: -0.69, -0.22), and the overall association between DE-71 along with BDE-209 and male reproductive system damage was statistically significant (SMD = -0.7 95% CI: -1.18, -0.21, p = .041; SMD = -0.41, 95% CI: -0.77, -0.05, p = .000). The adverse impact of PBDEs on rodent male reproductive system, especially seminal vesicle (SMD = -1.09, 95% CI: -1.49, -0.49, p = .523) and ventral prostate (SMD = -1.27, 95% CI: -1.88, -0.65, p = .821), were clearly demonstrated. Moderate (SMD = -0.81, 95% CI: -1.182, -0.437, p = .197) and high (SMD = -0.41, 95% CI: -0.76, -0.05, p = .000) dosage may have exerted effect than relatively low (SMD = -0.29, 95% CI: -0.17, 0.12, p = .136) dosage. In conclusion, our meta-analysis and systematic review suggested PBDE toxicity on the male reproductive system.
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Affiliation(s)
- Tongtong Zhang
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Xiang Zhou
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Aiming Xu
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Ye Tian
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Yuhao Wang
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Yao Zhang
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Qi Gu
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - ShangQian Wang
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China
| | - Zengjun Wang
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Street, Nanjing, Jiangsu Province 210029, China.
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Lee HK, Kang H, Lee S, Kim S, Choi K, Moon HB. Human exposure to legacy and emerging flame retardants in indoor dust: A multiple-exposure assessment of PBDEs. Sci Total Environ 2020; 719:137386. [PMID: 32112953 DOI: 10.1016/j.scitotenv.2020.137386] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/10/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
Human exposure to flame retardants (FRs) in indoor environments is a growing concern. In this study, the concentrations of polybrominated diphenyl ethers (PBDEs) and their alternatives, such as novel brominated flame retardants (NBFRs), dechlorane plus (DP), and organophosphate flame retardants (OPFRs), were measured in dust from indoor environments in Korea to investigate their occurrence, contamination profiles, and health risks. Legacy and emerging FRs were detected in dust samples, indicating widespread contamination of indoor environments. The concentrations of alternative FRs were higher in dust from offices compared with house dust, suggesting that office environments are major consumers of alternative FRs. Similar compositional profiles for indoor dust were found for PBDEs in different microenvironments and regions, while OPFR composition varied widely due to disparate applications. The estimated daily intakes of PBDEs, NBFRs, and OPFRs via dust ingestion were lower than the reference doses proposed by previous studies. A multiple-exposure assessment showed that dust ingestion was a major contributor to total PBDEs for toddlers and adults. However, major exposure pathways of BDEs 47 and 209 differed between toddlers and adults. Our study suggests that multiple exposure pathways should be considered in a comprehensive exposure assessment of PBDEs.
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Affiliation(s)
- Hyun-Kyung Lee
- Department of Marine Science and Convergence Engineering, College of Science and Convergence Technology, Hanyang University, Ansan 15588, Republic of Korea
| | - Habyeong Kang
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
| | - Sunggyu Lee
- Department of Marine Science and Convergence Engineering, College of Science and Convergence Technology, Hanyang University, Ansan 15588, Republic of Korea
| | - Sunmi Kim
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyungho Choi
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Science and Convergence Engineering, College of Science and Convergence Technology, Hanyang University, Ansan 15588, Republic of Korea.
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Sjödin A, Mueller JF, Jones R, Schütze A, Wong LY, Caudill SP, Harden FA, Webster TF, Toms LM. Serum elimination half-lives adjusted for ongoing exposure of tri-to hexabrominated diphenyl ethers: Determined in persons moving from North America to Australia. Chemosphere 2020; 248:125905. [PMID: 32004881 PMCID: PMC7819278 DOI: 10.1016/j.chemosphere.2020.125905] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 05/30/2023]
Abstract
The objective of the study was to determine the human serum elimination half-life of polybrominated diphenyl ethers (PBDEs) adjusted for ongoing exposure in subjects moving from a higher exposure region (North America) to a lower exposure region (Australia). The study population was comprised of exchange students and long-term visitors from North America moving to Brisbane, Australia (N = 27) and local residents (N = 23) who were followed by repeated serum sampling every other month. The local residents were sampled to adjust for ongoing exposure in Australia. Only one visitor remained in Australia for a period of time similar to the elimination half-life and had a sufficiently high initial concentration of PBDEs to derive a half-life. This visitor arrived in Australia in March of 2011 and remained in the country for 1.5 years. Since the magnitude of PBDE exposure is lower in Australia than in North America we observed an apparent 1st order elimination curve over time from which we have estimated the serum elimination half-lives for BDE28, BDE47, BDE99, BDE100, and BDE153 to be 0.942, 1.19, 1.03, 2.16, and 4.12 years, respectively. Uncertainty in the estimates were estimated using a Monte Carlo simulation. The human serum elimination half-life adjusted for ongoing exposure can allow us to assess the effectiveness and reduction in exposure in the general population following phase out of commercial penta- and octaBDE in 2004 in the United States.
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Affiliation(s)
- Andreas Sjödin
- Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH), Division of Laboratory Sciences (DLS), 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, 4102, Queensland, Australia
| | - Richard Jones
- Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH), Division of Laboratory Sciences (DLS), 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Andre Schütze
- Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH), Division of Laboratory Sciences (DLS), 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Lee-Yang Wong
- Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH), Division of Laboratory Sciences (DLS), 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Samuel P Caudill
- Centers for Disease Control and Prevention (CDC), National Center for Environmental Health (NCEH), Division of Laboratory Sciences (DLS), 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | | | - Thomas F Webster
- Dept Environmental Health, Boston University School of Public Health, Boston, MA, 02130, USA
| | - Leisa-Maree Toms
- School of Public Health and Social Work, Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Brisbane, Australia
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Kanaya N, Bernal L, Chang G, Yamamoto T, Nguyen D, Wang YZ, Park JS, Warden C, Wang J, Wu X, Synold T, Rakoff M, Neuhausen SL, Chen S. Molecular Mechanisms of Polybrominated Diphenyl Ethers (BDE-47, BDE-100, and BDE-153) in Human Breast Cancer Cells and Patient-Derived Xenografts. Toxicol Sci 2020; 169:380-398. [PMID: 30796839 DOI: 10.1093/toxsci/kfz054] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Polybrominated diphenyl ethers (PBDEs) have been used as flame retardants in household materials. Their environmental persistence has led to continuous human exposure and significant tissue levels. Three PBDE congeners (BDE-47, BDE-100, and BDE-153) have been frequently detected in human serum. Although these compounds appear to possess endocrine disrupting activity, studies are largely missing to determine the biological mechanisms of PBDEs in breast cancer cells. Here, we assessed PBDE bioactivities with three complementary strategies: receptor binding/activity assays; nonbiased RNA-sequencing analysis using an estrogen-dependent breast cancer cell line MCF-7aroERE; and in vivo assessments using patient-derived xenograft (PDX) models of human breast cancer. According to the results from in vitro experiments, the PBDE congeners regulate distinct nuclear receptor signaling pathways. BDE-47 acts as a weak agonist of both estrogen receptor α (ERα) and estrogen-related receptor α (ERRα); it could stimulate proliferation of MCF-7aroERE and induced expression of ER-regulated genes (including cell cycle genes). BDE-153 was found to act as a weak antagonist of ERα. BDE-100 could act as (1) an agonist of aryl hydrocarbon receptor (AhR), inducing expression of CYP1A1 and CYP1B1 and (2) as a very weak agonist/antagonist of ERα. In vivo, a mixture of the three congeners with ratios detected in human serum was tested in an ER+ PDX model. The mixture exhibited estrogenic activity through apoptosis/cell cycle regulation and increased the expression of a proliferation marker, Ki-67. These results advance our understanding of the mechanisms of PBDE exposure in breast cancer cells.
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Affiliation(s)
- Noriko Kanaya
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Lauren Bernal
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Gregory Chang
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Takuro Yamamoto
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Duc Nguyen
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Yuan-Zhong Wang
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - June-Soo Park
- Environmental Chemistry Laboratory, Department of Toxic Substances Control, Berkeley, California 94710
| | - Charles Warden
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Jinhui Wang
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Xiwei Wu
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Timothy Synold
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Michele Rakoff
- Breast Cancer Care & Research Fund, Los Angeles, California 90036
| | - Susan L Neuhausen
- Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, California 91010
| | - Shiuan Chen
- Department of Cancer Biology, Beckman Research Institute of City of Hope, Duarte, California 91010
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Poston RG, Murphy L, Rejepova A, Ghaninejad-Esfahani M, Segales J, Mulligan K, Saha RN. Certain ortho-hydroxylated brominated ethers are promiscuous kinase inhibitors that impair neuronal signaling and neurodevelopmental processes. J Biol Chem 2020; 295:6120-6137. [PMID: 32229587 PMCID: PMC7196656 DOI: 10.1074/jbc.ra119.011138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 09/18/2019] [Revised: 03/23/2020] [Indexed: 12/20/2022] Open
Abstract
The developing nervous system is remarkably sensitive to environmental signals, including disruptive toxins, such as polybrominated diphenyl ethers (PBDEs). PBDEs are an environmentally pervasive class of brominated flame retardants whose neurodevelopmental toxicity mechanisms remain largely unclear. Using dissociated cortical neurons from embryonic Rattus norvegicus, we found here that chronic exposure to 6-OH-BDE-47, one of the most prevalent hydroxylated PBDE metabolites, suppresses both spontaneous and evoked neuronal electrical activity. On the basis of our previous work on mitogen-activated protein kinase (MAPK)/extracellular signal-related kinase (ERK) (MEK) biology and our observation that 6-OH-BDE-47 is structurally similar to kinase inhibitors, we hypothesized that certain hydroxylated PBDEs mediate neurotoxicity, at least in part, by impairing the MEK-ERK axis of MAPK signal transduction. We tested this hypothesis on three experimental platforms: 1) in silico, where modeling ligand-protein docking suggested that 6-OH-BDE-47 is a promiscuous ATP-competitive kinase inhibitor; 2) in vitro in dissociated neurons, where 6-OH-BDE-47 and another specific hydroxylated BDE metabolite similarly impaired phosphorylation of MEK/ERK1/2 and activity-induced transcription of a neuronal immediate early gene; and 3) in vivo in Drosophila melanogaster, where developmental exposures to 6-OH-BDE-47 and a MAPK inhibitor resulted in offspring displaying similarly increased frequency of mushroom-body β-lobe midline crossing, a metric of axonal guidance. Taken together, our results support that certain ortho-hydroxylated PBDE metabolites are promiscuous kinase inhibitors and can cause disruptions of critical neurodevelopmental processes, including neuronal electrical activity, pre-synaptic functions, MEK-ERK signaling, and axonal guidance.
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Affiliation(s)
- Robert G Poston
- Molecular and Cell Biology Department, School of Natural Sciences, University of California, Merced, Merced, California 95343
| | - Lillian Murphy
- Department of Biological Sciences, Center for Interdisciplinary Molecular Biology: Education, Research and Advancement (CIMERA), California State University, Sacramento, California 95819
| | - Ayna Rejepova
- Molecular and Cell Biology Department, School of Natural Sciences, University of California, Merced, Merced, California 95343
| | - Mina Ghaninejad-Esfahani
- Molecular and Cell Biology Department, School of Natural Sciences, University of California, Merced, Merced, California 95343
| | - Joshua Segales
- Molecular and Cell Biology Department, School of Natural Sciences, University of California, Merced, Merced, California 95343
| | - Kimberly Mulligan
- Department of Biological Sciences, Center for Interdisciplinary Molecular Biology: Education, Research and Advancement (CIMERA), California State University, Sacramento, California 95819
| | - Ramendra N Saha
- Molecular and Cell Biology Department, School of Natural Sciences, University of California, Merced, Merced, California 95343.
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45
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Orta OR, Wesselink AK, Bethea TN, Claus Henn B, McClean MD, Sjödin A, Baird DD, Wise LA. Correlates of plasma concentrations of brominated flame retardants in a cohort of U.S. Black women residing in the Detroit, Michigan metropolitan area. Sci Total Environ 2020; 714:136777. [PMID: 32018967 PMCID: PMC7268778 DOI: 10.1016/j.scitotenv.2020.136777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/18/2019] [Accepted: 01/16/2020] [Indexed: 05/02/2023]
Abstract
BACKGROUND Polybrominated diphenyl ethers (PBDEs) and polybrominated biphenyls (PBBs) are brominated flame retardant chemicals detectable in the environment and U.S. population, and are associated with adverse health outcomes over the life course. Correlates of these organic pollutants are understudied among U.S. Black women. METHODS Using baseline data from a prospective cohort study of U.S. Black women aged 23-35 years from the Detroit area of Michigan (2010-2012), we examined correlates of PBDEs and PBB-153. Non-fasting blood samples were collected from 742 participants at enrollment, a subset of women selected for a case-cohort study of environmental chemicals. Data on socio-demographics, behaviors, diet, medical history, and early-life exposures were collected via self-administered questionnaires, telephone interviews, and in-person clinic visits. We fit linear regression models to calculate percent differences and 95% confidence intervals in lipid adjusted plasma concentrations of 11 individual PBDE congeners and PBB-153 for each baseline predictor. RESULTS In models adjusted for all other correlates, a 5-year increase in age was inversely associated with most PBDE congeners (% differences ranged from 6 to 15% lower), and was positively associated with PBB-153 (52% higher). A 5-kg/m2 increase in BMI was inversely associated with PBDE-153 and PBB-153 (16% lower for both), and 6% higher for PBDE-28. Compared with having never been breastfed in infancy, ≥3 months of breastfeeding in infancy was associated with 69% higher PBB-153 concentrations. Lower education, current smoking, and heavy alcohol use were associated with higher plasma concentrations of most flame retardants. Diet was not an important predictor. CONCLUSION Important correlates for elevated body burdens of PBB-153 were increasing age and a history of having been breastfed in infancy. Education, smoking, and heavy alcohol use were important predictors of elevated body burdens of most flame retardants. This study fills an important gap in the environmental health literature by focusing on an understudied population.
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Affiliation(s)
- Olivia R Orta
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.
| | - Amelia K Wesselink
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Traci N Bethea
- Slone Epidemiology Center at Boston University, Boston, MA, USA; Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Birgit Claus Henn
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Michael D McClean
- Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA
| | - Andreas Sjödin
- Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Donna D Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
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46
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Jeong Y, Lee Y, Park KJ, An YR, Moon HB. Accumulation and time trends (2003-2015) of persistent organic pollutants (POPs) in blubber of finless porpoises (Neophocaena asiaeorientalis) from Korean coastal waters. J Hazard Mater 2020; 385:121598. [PMID: 31732341 DOI: 10.1016/j.jhazmat.2019.121598] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/22/2019] [Accepted: 11/02/2019] [Indexed: 06/10/2023]
Abstract
Accumulation of persistent organic pollutants (POPs) in marine mammals is of great concern and is associated with declining populations. The concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs) were measured in blubber of finless porpoises (Neophocaena asiaeorientalis) collected from Korean coastal waters in 2010 and 2015, to assess the concentrations, time trends, and ecotoxicological effects. Among the POPs measured, DDTs were detected at the highest concentrations, followed by PCBs and PBDEs. Significant age- and sex-dependent accumulation of POPs was evident for porpoises collected in 2010, but not for those collected in 2015. This finding may be a function of stabilization of POP concentrations over time. In our study, accumulation patterns of POPs were dependent on consumption patterns and physico-chemical properties of the contaminants, and on the metabolism in the porpoises. Significant reductions of POPs were found between 2003 and 2010, likely reflecting the impact of domestic and global regulation of POPs. However, no changes in most POPs were found between 2010 and 2015, suggesting a trend toward stabilization. Approximately 10 % and 27 % of porpoises exceeded previously proposed threshold levels for PCBs and DDTs, respectively, implying a potential health risk.
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Affiliation(s)
- Yunsun Jeong
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Youngsun Lee
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Kyum Joon Park
- Cetacean Research Institute (CRI), National Institute of Fisheries Science (NIFS), Ulsan 44780, Republic of Korea
| | - Yong-Rock An
- National Marine Biodiversity Institute of Korea (MABIK), Seocheon 33662, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea.
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47
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Klinčić D, Dvoršćak M, Jagić K, Mendaš G, Herceg Romanić S. Levels and distribution of polybrominated diphenyl ethers in humans and environmental compartments: a comprehensive review of the last five years of research. Environ Sci Pollut Res Int 2020; 27:5744-5758. [PMID: 31933075 DOI: 10.1007/s11356-020-07598-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [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: 07/03/2019] [Accepted: 01/01/2020] [Indexed: 06/10/2023]
Abstract
Polybrominated diphenyl ethers (PBDEs) are a class of brominated flame retardants (BFRs), present in the environment, animals, and humans. Their levels, distribution, and human exposure have been studied extensively, and over the last decade, various legal measures have been taken to prohibit or minimize their production and use due to the increasing amount of evidence of their harmful effects on human and animal health.Our aim here was to make a comprehensive and up-to-date review of the levels and distribution of PBDEs in the aquatic environment, air, and soil, in indoor dust, and in humans. To fulfill this, we searched through Web of Science for literature data reported in the last five years (2015-2019) on levels of at least six key PBDE congeners in abovementioned matrices. According to our summarized data, significant PBDE mass concentrations/fractions are still being detected in various sample types across the world, which implies that PBDE contamination is an ongoing problem. Secondary sources of PBDEs like contaminated soils and landfills, especially those with electronic and electrical waste (e-waste), represent a particular risk to the future and therefore require a special attention of scientists.
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Affiliation(s)
- Darija Klinčić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001, Zagreb, Croatia
| | - Marija Dvoršćak
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001, Zagreb, Croatia.
| | - Karla Jagić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001, Zagreb, Croatia
| | - Gordana Mendaš
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001, Zagreb, Croatia
| | - Snježana Herceg Romanić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001, Zagreb, Croatia
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48
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Schlingermann M, Berrow S, Craig D, McHugh B, Marrinan M, O'Brien J, O'Connor I, Mudzatsi E, White P. High concentrations of persistent organic pollutants in adult killer whales (Orcinus orca) and a foetus stranded in Ireland. Mar Pollut Bull 2020; 151:110699. [PMID: 31780087 DOI: 10.1016/j.marpolbul.2019.110699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/22/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Bio-accumulation of persistent organic pollutants including polychlorinated biphenyls (PCBs), brominated flame retardants and organochlorine pesticides continue to be of major concern for marine apex predators such as killer whales. The concentrations of 16 polychlorinated biphenyls, 7 poly-brominated diphenyl ethers (PBDEs), 1 poly-brominated biphenyl (PBB) and a range of 19 organochlorine compounds (OCs) was investigated in blubber samples from a mother-foetus pair, an adult female and an adult male killer whale stranded in Ireland between 2010 and 2017. Concentrations ranged from 1.5 mg/kg to 49.3 mg/kg lipid weight and 0.04-1.2 mg/kg lipid weight for Σ16PCBs and Σ7PBDEs respectively. Concentrations of organochlorine compounds were also investigated in the male killer whale; a Σ19OC concentration of 49.4 mg/kg lipid weight was recorded. This study shows high levels of persistent organic pollutants occur in this species of whales stranded in Ireland.
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Affiliation(s)
- Moira Schlingermann
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland.
| | - Simon Berrow
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland; Irish Whale and Dolphin Group, Merchants Quay, Kilrush, Co Clare, Ireland
| | - Darren Craig
- Irish Whale and Dolphin Group, Merchants Quay, Kilrush, Co Clare, Ireland
| | | | - Michael Marrinan
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
| | - Joanne O'Brien
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland; Irish Whale and Dolphin Group, Merchants Quay, Kilrush, Co Clare, Ireland
| | - Ian O'Connor
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
| | - Engelberth Mudzatsi
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
| | - Philip White
- Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
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49
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Sun R, Pan C, Li QX, Peng F, Mai B. Occurrence and congener profiles of polybrominated diphenyl ethers in green mussels (Perna viridis) collected from northern South China Sea and the associated potential health risk. Sci Total Environ 2020; 698:134276. [PMID: 31514028 DOI: 10.1016/j.scitotenv.2019.134276] [Citation(s) in RCA: 3] [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: 07/17/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Polybrominated diphenyl ether (PBDE) contamination has become a major concern over the effects on human health. In the present study, we collected widely consumed green mussels (Perna viridis) samples from the northern South China Sea (NSCS) to investigate the occurrence, spatial distribution, congener profiles as well as potential risk of 18 PBDEs. All the target PBDEs were detected in green mussel samples, indicating their ubiquitous distribution. The concentrations of the total 18 PBDES (ΣPBDEs) in all samples varied from 6.96 to 55.6 ng/g lipid weight (lw), with BDE-47 and BDE-209 being the predominant PBDE congeners. Overall, the ΣPBDEs pollution in green mussels from NSCS was at a moderate to high level in comparison with the PBDEs pollution worldwide. The dietary exposure of the local population in South China to PBDEs via consuming green mussels was estimated to be 0.30-0.80 ng/kg body weight (bw)/day. Evaluation of the exposure risk for BDE-47, 99, 153 and 209 indicated that health risks due to green mussel consumption are substantially lower than the U.S. EPA minimum concern level.
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Affiliation(s)
- Runxia Sun
- School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Changgui Pan
- School of Marine Sciences, Guangxi University, Nanning 530004, China; Guangxi Laboratory on the Study of Coral Reefs in the South China Sea, Guangxi University, Nanning 530004, China.
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, HI 96822, USA
| | - Fengjiao Peng
- Department of Population Health, Luxembourg Institute of Health, 1A-B, Rue Thomas Edison, L-1445 Strassen, Luxembourg
| | - Bixian Mai
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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50
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Suvorov A, Naumov V, Shtratnikova V, Logacheva M, Shershebnev A, Wu H, Gerasimov E, Zheludkevich A, Pilsner JR, Sergeyev O. Rat liver epigenome programing by perinatal exposure to 2,2',4'4'-tetrabromodiphenyl ether. Epigenomics 2019; 12:235-249. [PMID: 31833787 DOI: 10.2217/epi-2019-0315] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Perinatal exposures to polybrominated diphenyl ethers permanently reprogram liver metabolism and induce a nonalcoholic fatty liver disease-like phenotype and insulin resistance in rodents. Aim: To test if these changes are associated with altered liver epigenome. Materials & methods: Expression of small RNA and changes in DNA methylation in livers of adult rats were analyzed following perinatal exposure to 2,2',4,4'-tetrabromodiphenyl ether, the polybrominated diphenyl ether congener most prevalent in human tissues. Results: We identified 33 differentially methylated DNA regions and 15 differentially expressed miRNAs. These changes were enriched for terms related to lipid and carbohydrate metabolism, insulin signaling, Type-2 diabetes and nonalcoholic fatty liver disease. Conclusion: Changes in the liver epigenome are a likely candidate mechanism of long-term maintenance of an aberrant metabolic phenotype.
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Affiliation(s)
- Alexander Suvorov
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts 686 North Pleasant Street Amherst, MA 01003, USA.,A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, Leninskye Gory, House 1, Building 40, 119992, Moscow, Russia
| | - Vladimir Naumov
- Kulakov National Medical Research Center of Obstetrics, Gynecology & Perinatology, Ministry of Health of the Russian Federation, Oparina 4, 117997, Moscow, Russia
| | - Victoria Shtratnikova
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, Leninskye Gory, House 1, Building 40, 119992, Moscow, Russia.,Center for Data-Intensive Biomedicine & Biotechnology, Skolkovo Institute of Science & Technology, 143028, Moscow, Russia
| | - Maria Logacheva
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, Leninskye Gory, House 1, Building 40, 119992, Moscow, Russia.,Center for Data-Intensive Biomedicine & Biotechnology, Skolkovo Institute of Science & Technology, 143028, Moscow, Russia
| | - Alex Shershebnev
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts 686 North Pleasant Street Amherst, MA 01003, USA
| | - Haotian Wu
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts 686 North Pleasant Street Amherst, MA 01003, USA.,Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 W 168th St, New York, NY 10032, USA
| | - Evgeny Gerasimov
- E.I. Martsinovsky Institute of Medical Parasitology & Tropical Medicine, I.M. Sechenov First Moscow State Medical University, 20 Malaya Pirogovskaya, 119435, Moscow, Russia.,Faculty of Biology, Lomonosov Moscow State University, 119992, Moscow, Russia
| | | | - Jonathan R Pilsner
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts 686 North Pleasant Street Amherst, MA 01003, USA
| | - Oleg Sergeyev
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, Leninskye Gory, House 1, Building 40, 119992, Moscow, Russia.,Chapaevsk Medical Association, 3a Meditsinskaya St., Samara region, 446100, Chapaevsk, Russia
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