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Sharma P, Vishwakarma R, Varjani S, Gautam K, Gaur VK, Farooqui A, Sindhu R, Binod P, Awasthi MK, Chaturvedi P, Pandey A. Multi-omics approaches for remediation of bisphenol A: Toxicity, risk analysis, road blocks and research perspectives. Environ Res 2022; 215:114198. [PMID: 36063912 DOI: 10.1016/j.envres.2022.114198] [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: 03/17/2022] [Revised: 05/01/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
In this "plastic era" with the increased use of plastic in day today's life the accumulation of its degraded products like microplastics or plastic additives such as Bisphenol A(BPA) is also increasing. BPA is an endocrine-disrupting chemical used as a plasticizing agent in clear plastic, building materials, coatings, and epoxy resin. Several enzymes including laccases and lipases have been studied for the reduction of BPA toxicity. Over the decades of encountering these toxicants, microorganisms have evolved to degrade different classes of plastic additives. Since the degradation of BPA is a long process thus meta-omics approaches have been employed to identify the active microbiota and microbial dynamics involved in the mitigation of BPA. It is also necessary to investigate the impact of processing activities on transit of BPA in food items and to limit its entrance in food world. This review summarizes a comprehensive overview on BPA sources, toxicity, bio-based mitigation approaches along with a deeper understanding of multi-omics approaches for its reduction and risk analysis. Knowledge gaps and opportunities have been comprehensively compiled that would aid the state-of-the-art information in the available literature for the researchers to further address this issue.
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Affiliation(s)
- Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, 226 026, India
| | - Reena Vishwakarma
- Department of Bioengineering, Integral University, Lucknow, 226 026, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382 010, India.
| | - Krishna Gautam
- Centre of Energy and Environmental Sustainability, Lucknow, 226 021, India
| | - Vivek K Gaur
- Centre of Energy and Environmental Sustainability, Lucknow, 226 021, India; School of Energy and Chemical Engineering, UNIST, Ulsan, 44919, Republic of Korea
| | - Alvina Farooqui
- Department of Bioengineering, Integral University, Lucknow, 226 026, India
| | - Raveendran Sindhu
- Department of Food Technology, T K M Institute of Technology, Kollam, 691 505, Kerala, India
| | - Parameswaran Binod
- CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Trivandrum, 695 019, Kerala, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A& F University, Yangling, Shaanxi Province, 712100, PR China
| | - Preeti Chaturvedi
- Aquatic Toxicology Laboratory, Environmental Toxicology Group, Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, M.G. Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Ashok Pandey
- Centre of Energy and Environmental Sustainability, Lucknow, 226 021, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, India
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Heidarizadi S, Rashidi Z, Jalili C, Gholami M. Overview of biological effects of melatonin on testis: A review. Andrologia 2022; 54:e14597. [PMID: 36168927 DOI: 10.1111/and.14597] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 11/29/2022] Open
Abstract
Infertility is a major global health issue and male factors account for half of all infertility cases. One of the causes of male infertility is the loss of spermatogonial stem cells, which may occur because of chemotherapy, radiotherapy or genetic defects. In numerous animal species, the evidence suggests the pineal gland and melatonin secretion in their reproductive activities are involved. Recently, considerable attention has pointed to the usage of melatonin in the treatment of diseases. Melatonin is associated with the regulation of circadian and seasonal rhythmic functions, immune system functions, retinal physiology, spermatogenesis and inhibition of tumour growth in different species. Several studies demonstrated that melatonin acts as an anti-apoptotic, anti-inflammatory, anticancer and antioxidant agent. Melatonin can also protect testicles and spermatogonia against oxidative damage, chemotherapy drugs, environmental radiation, toxic substances, hyperthermia, ischemia/reperfusion, diabetes-induced testicular damage, metal-induced testicular toxicity, improve sperm quality and it affects the testosterone secretion pathway by affecting Leydig cells. Therefore, the objective of this study is to investigate the biological effects of melatonin as a natural antioxidant on testicles and their disorders.
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Affiliation(s)
- Somayeh Heidarizadi
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Rashidi
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Fertility and Infertility Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Cyrus Jalili
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammadreza Gholami
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Torres-García JL, Ahuactzin-Pérez M, Fernández FJ, Cortés-Espinosa DV. Bisphenol A in the environment and recent advances in biodegradation by fungi. Chemosphere 2022; 303:134940. [PMID: 35588877 DOI: 10.1016/j.chemosphere.2022.134940] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 02/03/2022] [Revised: 05/03/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Bisphenol A (BPA) is a compound used in the manufacture of a wide variety of everyday materials that, when released into the environment, causes multiple detrimental effects on humans and other organisms. The reason for this review is to provide an overview of the presence, distribution, and concentration of BPA in water, soil, sediment, and air, as well as the process of release and migration, biomagnification, and exposure mechanisms that cause various toxic effects in humans. Therefore, it is important to seek efficient and economic strategies that allow its removal from the environment and prevent it from reaching humans through food chains. Likewise, the main removal techniques are analyzed, focusing on biological treatments, particularly the most recent advances in the degradation of BPA in different environmental matrices through the use of ligninolytic fungi, non-ligninolytic fungi and yeasts, as well as the possible routes of metabolic processes that allow their biotransformation or biodegradation due to their efficient extracellular enzyme systems. This review supports the importance of the application of new biotechnological tools for the degradation of BPA.
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Affiliation(s)
- J L Torres-García
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Vicentina, 09340, Ciudad de México, México
| | - M Ahuactzin-Pérez
- Facultad de Agrobiología, Universidad Autónoma de Tlaxcala, Autopista Tlaxcala-San Martín Km 10.5, 90120, San Felipe Ixtacuixtla, Tlaxcala, Mexico
| | - F J Fernández
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Vicentina, 09340, Ciudad de México, México
| | - Diana V Cortés-Espinosa
- Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada. Carretera Estatal San Inés Tecuexcomac-Tepetitla Km 1.5, 90700, Tepetitla de Lardizabal, Tlaxcala, Mexico.
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Abstract
Bisphenols, endocrine disrupting chemicals, have frequently been used for producing food packaging materials. The best-known member, bisphenol A (BPA), has been linked to impaired foetal development in animals. Possible negative effects of BPA on human health have resulted in the production of novel, so-called next-generation (NextGen) bisphenols whose effects on humans are much less explored or even missing. This review aimed to summarise and critically assess the main findings and shortages in current bisphenol research in relation to their potential impact on the cardiovascular system in real biological exposure. Because of the common presence of bisphenols in daily use products, humans are clearly exposed to these compounds. Most data are available on BPA, where total serum levels (i.e. included conjugated metabolite) can reach up to ∼430 nM, while free bisphenol levels have been reported up to ∼80 nM. Limited data are available for other bisphenols, but maximal serum levels of bisphenol S have been reported (680 nM). Such levels seem to be negligible, although in vitro studies have showed effects on ion channels, and thyroid, oestrogenic and androgenic receptors in low micromolar concentrations. Ex vivo studies suggest vasodilatory effects of bisphenols. This stays in clear contrast to the elevation of arterial blood pressure documented in vivo and in observatory cross-sectional human studies. Bisphenols are also claimed to have a negative effect on lipidic spectrum and coronary artery disease. Regardless, the reported data are generally inconsistent and unsatisfactory. Hence novel well-designed studies, testing in particular NextGen bisphenols, are needed.
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Affiliation(s)
- Patrícia Dias
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Václav Tvdrý
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Eduard Jirkovský
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | | | | | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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Abstract
Aim: To determine small RNA expression changes in mouse placenta induced by bisphenol A (BPA) exposure. Methods: Exposing female mice to BPA two weeks prior to conception through gestational day 12.5; whereupon fetal placentas were collected, frozen in liquid nitrogen and stored at -80°C. Small RNAs were isolated and used for small RNA-sequencing. Results: 43 small RNAs were differentially expressed. Target mRNAs were closely aligned to those expressed by thymus and brain, and pathway enrichment analyses indicated that such target mRNAs regulate neurogenesis and associated neurodevelopment processes. Conclusions: BPA induces several small RNAs in mouse placenta that might provide biomarkers for BPA exposure. Further, the placenta might affect fetal brain development through the secretion of miRNAs.
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Affiliation(s)
- Jiude Mao
- Christopher S Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA.,Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Jessica A Kinkade
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA
| | - Nathan J Bivens
- Genomics Technology Core Facility, University of Missouri, Columbia, MO 65211, USA
| | - Cheryl S Rosenfeld
- Biomedical Sciences, University of Missouri, Columbia, MO 65211, USA.,MU Institute for Data Science & Informatics, University of Missouri, Columbia, MO 65211, USA.,Thompson Center for Autism & Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211, USA.,Genetics Area Program, University of Missouri, Columbia, MO 65211, USA
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6
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Vandenberg LN, Pelch KE. Systematic Review Methodologies and Endocrine Disrupting Chemicals: Improving Evaluations of the Plastic Monomer Bisphenol A. Endocr Metab Immune Disord Drug Targets 2021; 22:748-764. [PMID: 34610783 DOI: 10.2174/1871530321666211005163614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 06/25/2021] [Accepted: 08/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Endocrine disrupting chemicals (EDCs) are found in plastics, personal care products, household items, and other consumer goods. Risk assessments are intended to characterize a chemical's hazards, identify the doses at which adverse outcomes are observed, quantify exposure levels, and then compare these doses to determine the likelihood of risk in a given population. There are many problems with risk assessments for EDCs, allowing people to be exposed to levels that are later associated with serious health outcomes in epidemiology studies. OBJECTIVE In this review, we examine issues that affect the evaluation of EDCs in risk assessments (e.g., use of insensitive rodent strains and absence of disease-oriented outcomes in hazard assessments; inadequate exposure assessments). We then review one well-studied chemical, Bisphenol A (BPA; CAS #80-05-7) an EDC found in plastics, food packaging, and other consumer products. More than one hundred epidemiology studies suggest associations between BPA exposures and adverse health outcomes in environmentally exposed human populations. FINDINGS We present support for the use of systematic review methodologies in the evaluation of BPA and other EDCs. Systematic reviews would allow studies to be evaluated for their reliability and risk of bias. They would also allow all data to be used in risk assessments, which is a requirement for some regulatory agencies. CONCLUSION Systematic review methodologies can be used to improve evaluations of BPA and other EDCs. Their use could help to restore faith in risk assessments and ensure that all data are utilized in decision-making. Regulatory agencies are urged to conduct transparent, well-documented and proper systematic reviews for BPA and other EDCs.
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Affiliation(s)
- Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts - Amherst, United States
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Mao J, Jain A, Denslow ND, Nouri MZ, Chen S, Wang T, Zhu N, Koh J, Sarma SJ, Sumner BW, Lei Z, Sumner LW, Bivens NJ, Roberts RM, Tuteja G, Rosenfeld CS. Bisphenol A and bisphenol S disruptions of the mouse placenta and potential effects on the placenta-brain axis. Proc Natl Acad Sci U S A 2020; 117:4642-4652. [PMID: 32071231 PMCID: PMC7060676 DOI: 10.1073/pnas.1919563117] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [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] [Indexed: 12/17/2022] Open
Abstract
Placental trophoblast cells are potentially at risk from circulating endocrine-disrupting chemicals, such as bisphenol A (BPA). To understand how BPA and the reputedly more inert bisphenol S (BPS) affect the placenta, C57BL6J mouse dams were fed 200 μg/kg body weight BPA or BPS daily for 2 wk and then bred. They continued to receive these chemicals until embryonic day 12.5, whereupon placental samples were collected and compared with unexposed controls. BPA and BPS altered the expression of an identical set of 13 genes. Both exposures led to a decrease in the area occupied by spongiotrophoblast relative to trophoblast giant cells (GCs) within the junctional zone, markedly reduced placental serotonin (5-HT) concentrations, and lowered 5-HT GC immunoreactivity. Concentrations of dopamine and 5-hydroxyindoleacetic acid, the main metabolite of serotonin, were increased. GC dopamine immunoreactivity was increased in BPA- and BPS-exposed placentas. A strong positive correlation between 5-HT+ GCs and reductions in spongiotrophoblast to GC area suggests that this neurotransmitter is essential for maintaining cells within the junctional zone. In contrast, a negative correlation existed between dopamine+ GCs and reductions in spongiotrophoblast to GC area ratio. These outcomes lead to the following conclusions. First, BPS exposure causes almost identical placental effects as BPA. Second, a major target of BPA/BPS is either spongiotrophoblast or GCs within the junctional zone. Third, imbalances in neurotransmitter-positive GCs and an observed decrease in docosahexaenoic acid and estradiol, also occurring in response to BPA/BPS exposure, likely affect the placental-brain axis of the developing mouse fetus.
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Affiliation(s)
- Jiude Mao
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- Biomedical Sciences, University of Missouri, Columbia, MO 65211
| | - Ashish Jain
- Bioinformatics and Computational Biology, Iowa State University, Ames, IA 50011
- Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011
| | - Nancy D Denslow
- Physiological Sciences, University of Florida, Gainesville, FL 32611
- Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611
| | - Mohammad-Zaman Nouri
- Physiological Sciences, University of Florida, Gainesville, FL 32611
- Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611
| | - Sixue Chen
- Department of Biology, Genetics Institute, University of Florida, Gainesville, FL 32610
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Tingting Wang
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Ning Zhu
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Jin Koh
- Proteomics and Mass Spectrometry Facility, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Saurav J Sarma
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
| | - Barbara W Sumner
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
| | - Zhentian Lei
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
- Biochemistry, University of Missouri, Columbia, MO 65211
| | - Lloyd W Sumner
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
- University of Missouri Metabolomics Center, University of Missouri, Columbia, MO 65211
- Biochemistry, University of Missouri, Columbia, MO 65211
| | - Nathan J Bivens
- DNA Core Facility, University of Missouri, Columbia, MO 65211
| | - R Michael Roberts
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211;
- Biochemistry, University of Missouri, Columbia, MO 65211
- Animal Sciences, University of Missouri, Columbia, MO 65211
| | - Geetu Tuteja
- Bioinformatics and Computational Biology, Iowa State University, Ames, IA 50011;
- Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011
| | - Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO 65211;
- Biomedical Sciences, University of Missouri, Columbia, MO 65211
- Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO 65211
- University of Missouri Informatics Institute, University of Missouri, Columbia, MO 65211
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Skarha J, Messerlian C, Bellinger D, Mínguez-Alarcón L, Romano ME, Ford JB, Williams PL, Calafat AM, Hauser R, Braun JM. Parental preconception and prenatal urinary bisphenol A and paraben concentrations and child behavior. Environ Epidemiol 2020; 4:e082. [PMID: 33778347 PMCID: PMC7942833 DOI: 10.1097/ee9.0000000000000082] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/18/2019] [Indexed: 11/25/2022] Open
Abstract
Epidemiologic studies suggest that prenatal urinary bisphenol A (BPA) concentrations are associated with childhood behavior problems, but there is limited research on prenatal paraben concentrations. In rodent offspring, preconception maternal BPA exposure caused behavioral problems and paraben exposure impacted sperm quality. However, the effects of parental preconception and prenatal BPA and paraben exposure on children's neurodevelopment are unknown. METHODS The Environment and Reproductive Health (EARTH) Study is a prospective cohort of couples from a fertility clinic at Massachusetts General Hospital. The Centers for Disease Control and Prevention (CDC) quantified BPA, butylparaben, ethylparaben, methylparaben, and propylparaben concentrations in multiple urine samples collected before conception and during pregnancy. From the eligible parents (N = 220), we enrolled 158 children between 2 and 9 years of age. The parents completed the Behavior-Assessment-System-for-Children-2 (BASC-2). We estimated covariate-adjusted associations of average parental preconception and prenatal ln-transformed urinary BPA and sum of paraben concentrations (∑paraben) with BASC-2 scores using linear regression with generalized estimating equations. RESULTS Median urinary BPA and Σparaben concentrations were 1.2 and 189 μg/L in mothers preconception and 1.7 and 25 μg/L in fathers preconception, respectively. Among all children, parental BPA and ∑paraben concentrations were not associated with BASC-2 behavioral symptoms index, internalizing, or externalizing problems scores. Point estimates ranged from -1.5 to 1.4 with wide 95% confidence intervals that included the null value. CONCLUSION In this fertility clinic cohort, parental preconception and maternal prenatal BPA and paraben concentrations were not associated with problem behaviors among children. However, our small sample sizes reduced the precision of our results.
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Affiliation(s)
- Julianne Skarha
- Department of Epidemiology, Brown University, Providence, Rhode Island
| | - Carmen Messerlian
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - David Bellinger
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Megan E Romano
- Department of Epidemiology, Dartmouth Geisel School of Medicine, Lebanon, New Hampshire
| | - Jennifer B Ford
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Paige L Williams
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | | | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Joseph M Braun
- Department of Epidemiology, Brown University, Providence, Rhode Island
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Soriano S, Gil-Rivera M, Marroqui L, Alonso-Magdalena P, Fuentes E, Gustafsson JA, Nadal A, Martinez-Pinna J. Bisphenol A Regulates Sodium Ramp Currents in Mouse Dorsal Root Ganglion Neurons and Increases Nociception. Sci Rep 2019; 9:10306. [PMID: 31312012 DOI: 10.1038/s41598-019-46769-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 07/05/2019] [Indexed: 12/02/2022] Open
Abstract
17β-Estradiol mediates the sensitivity to pain and is involved in sex differences in nociception. The widespread environmental disrupting chemical bisphenol A (BPA) has estrogenic activity, but its implications in pain are mostly unknown. Here we show that treatment of male mice with BPA (50 µg/kg/day) during 8 days, decreases the latency to pain behavior in response to heat, suggesting increased pain sensitivity. We demonstrate that incubation of dissociated dorsal root ganglia (DRG) nociceptors with 1 nM BPA increases the frequency of action potential firing. SCN9A encodes the voltage-gated sodium channel Nav1.7, which is present in DRG nociceptors and is essential in pain signaling. Nav1.7 and other voltage-gated sodium channels in mouse DRG are considered threshold channels because they produce ramp currents, amplifying small depolarizations and enhancing electrical activity. BPA increased Nav-mediated ramp currents elicited with slow depolarizations. Experiments using pharmacological tools as well as DRG from ERβ−/− mice indicate that this BPA effect involves ERα and phosphoinositide 3-kinase. The mRNA expression and biophysical properties other than ramp currents of Nav channels, were unchanged by BPA. Our data suggest that BPA at environmentally relevant doses affects the ability to detect noxious stimuli and therefore should be considered when studying the etiology of pain conditions.
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Bhandari RK, Taylor JA, Sommerfeld-Sager J, Tillitt DE, Ricke WA, vom Saal FS. Estrogen receptor 1 expression and methylation of Esr1 promoter in mouse fetal prostate mesenchymal cells induced by gestational exposure to bisphenol A or ethinylestradiol. Environ Epigenet 2019; 5:dvz012. [PMID: 31463084 PMCID: PMC6705189 DOI: 10.1093/eep/dvz012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/20/2019] [Accepted: 07/10/2019] [Indexed: 05/02/2023]
Abstract
Fetal/neonatal environmental estrogen exposures alter developmental programing of the prostate gland causing onset of diseases later in life. We have previously shown in vitro that exposures to 17β-estradiol (E2) and the endocrine disrupting chemical bisphenol A, at concentrations relevant to human exposure, cause an elevation of estrogen receptor α (Esr1) mRNA in primary cultures of fetal mouse prostate mesenchymal cells; a similar result was observed in the fetal rat urogenital sinus. Effects of these chemicals on prostate mesenchyme in vivo are not well understood. Here we show effects in mice of fetal exposure to the estrogenic drug in mixed oral contraceptives, 17α-ethinylestradiol (EE2), at a concentration of EE2 encountered by human embryos/fetuses whose mothers become pregnant while on EE2-containing oral contraceptives, or bisphenol A at a concentration relevant to exposures observed in human fetuses in vivo. Expression of Esr1 was elevated by bisphenol A or EE2 exposures, which decreased the global expression of DNA methyltransferase 3A (Dnmt3a), while methylation of Esr1 promoter was significantly increased. These results show that exposures to the environmental estrogen bisphenol A and drug EE2 cause transcriptional and epigenetic alterations to expression of estrogen receptors in developing prostate mesenchyme in vivo.
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Affiliation(s)
- Ramji K Bhandari
- Department of Biology, University of North Carolina at Greensboro, Greensboro, NC, USA
- Division of Biological Sciences, University of Missouri, Columbia, MO, USA
- United States Geological Survey Columbia Environmental Research Center, Columbia, MO, USA
- Correspondence address. Department of Biology, University of North Carolina at Greensboro, 321 McIver Street, Greensboro, NC 27412, USA. Tel: +1-336-256-0493; Fax: +1-336-334-5839; E-mail:
| | - Julia A Taylor
- Division of Biological Sciences, University of Missouri, Columbia, MO, USA
| | | | - Donald E Tillitt
- United States Geological Survey Columbia Environmental Research Center, Columbia, MO, USA
| | - William A Ricke
- Department of Urology, Molecular Environmental Toxicology Program, George M. O’Brien Center of Research Excellence, University of Wisconsin, Madison, WI, USA
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Qi Y, He J, Xiu F, Yu X, Gao X, Li Y, Lu Y, Song Z. A convenient chemiluminescence detection for bisphenol A in E-waste dismantling site based on surface charge change of cationic gold nanoparticles. Microchem J 2019; 147:789-96. [DOI: 10.1016/j.microc.2019.03.095] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Mansouri V, Ebrahimpour K, Poursafa P, Riahi R, Shoshtari-Yeganeh B, Hystad P, Kelishadi R. Exposure to phthalates and bisphenol A is associated with higher risk of cardiometabolic impairment in normal weight children. Environ Sci Pollut Res Int 2019; 26:18604-18614. [PMID: 31055746 DOI: 10.1007/s11356-019-05123-z] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Some obese individuals have normal metabolic profile, and some normal-weight persons have impaired metabolic status. Our hypothesis was that one of the potential underlying factors for such differences in cardiometabolic profiles might be the exposure to some environmental chemicals. This study aimed to investigate the association of serum bisphenol A (BPA) and phthalate metabolites with cardiometabolic risk factors in children and adolescents independent of their weight status. This case-control study was conducted on a subsample of 320 participants of a national school-based surveillance program in Iran. We measured serum BPA and phthalate metabolites by gas chromatography mass spectrophotometry. We compared them in children and adolescents with and without excess weight and those with and without cardiometabolic risk factors (80 in each group). We categorized the concentrations of chemicals to tertiles and then we applied logistic regression models after adjustment for potential confounding factors. The concentrations of BPA and some metabolites of phthalates were significantly different in the four groups studied. MEHP concentration was associated with higher odds ratio of cardiometabolic risk factors in participants with normal weight (OR, 95% CI 2.82, 1.001-7.91) and those with excess weight (OR, 95% CI 3.15, 1.27-7.83). MBP concentration increased the odds ratio of cardiometabolic risk factors only in normal weight children and adolescents (OR, 95% CI 6.59, 2.33-18.59, P < 0.001). In participants without cardiometabolic risk factor, MMP and MEHHP were significantly associated with increased risk of excess weight (OR, 95% CI 5.90, 1.21-28.75 and 7.82, 1.5-41.8, respectively). This study showed that the association of BPA and phthalate with cardiometabolic risk factors is independent of the weight status. Our findings suggest that the metabolic impairment in some normal weight children and normal metabolic profile of some obese children can be, in part, related to exposure to these environmental chemicals. Graphical abstract.
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Affiliation(s)
- Vahid Mansouri
- Medical Student, Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, Iran
| | - Karim Ebrahimpour
- Environment Health Engineering Department, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parinaz Poursafa
- Environment Health Engineering Department, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Riahi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, Iran
| | - Bahareh Shoshtari-Yeganeh
- Environment Health Engineering Department, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Perry Hystad
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Roya Kelishadi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Hezarjerib Ave, Isfahan, Iran.
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13
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Rosenfeld CS, Cooke PS. Endocrine disruption through membrane estrogen receptors and novel pathways leading to rapid toxicological and epigenetic effects. J Steroid Biochem Mol Biol 2019; 187:106-117. [PMID: 30465854 PMCID: PMC6370520 DOI: 10.1016/j.jsbmb.2018.11.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/31/2018] [Accepted: 11/18/2018] [Indexed: 01/08/2023]
Abstract
Estrogen binding to estrogen receptors (ESR) triggers signaling cascades within cells. Historically, a major emphasis has been characterizing estrogen-induced genomic actions resulting from binding to nuclear estrogen receptor 1 (nESR1). However, recent evidence indicates the first receptors estrogens encounter as they enter a cell, membrane ESR1 (mESR1), also play crucial roles. Membrane and nuclear ESR are derived from the same transcripts but the former are directed to the membrane via palmitoylation. Binding and activation of mESR1 leads to rapid fluctuations in cAMP and Ca+2 and stimulation of protein kinase pathways. Endocrine disrupting chemicals (EDC) that mimic 17β-estradiol can signal through mESR1 and elicit non-genomic effects. Most current EDC studies have focused on genomic actions via nESR1. However, increasing number of studies have begun to examine potential EDC effects mediated through mESR1, and some EDC might have higher potency for signaling through mESR1 than nESR1. The notion that such chemicals might also affect mESR1 signaling via palmitoylation and depalmitoylation pathways has also begun to gain currency. Recent development of transgenic mice that lack either mESR1 or nESR1, while retaining functional ESR1 in the other compartment, will allow more precise in vivo approaches to determine EDC effects through nESR1 and/or mESR1. It is increasingly becoming apparent in this quickly evolving field that EDC directly affect mESR and estrogen signaling, but such chemicals can also affect proportion of ESR reaching the membrane. Future EDC studies should be designed to consider the full range of effects through mESR alone and in combination with nESR.
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Affiliation(s)
- Cheryl S Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA; Biomedical Sciences, University of Missouri, Columbia, MO, 65211, USA; Thompson Center for Autism and Neurobehavioral Disorders, Columbia, MO, 65211, USA.
| | - Paul S Cooke
- Department of Physiological Sciences, University of Florida, Gainesville, FL, 32610, USA.
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Vom Saal FS. Flaws in design, execution and interpretation limit CLARITY-BPA's value for risk assessments of bisphenol A. Basic Clin Pharmacol Toxicol 2019; 125 Suppl 3:32-43. [PMID: 30589220 DOI: 10.1111/bcpt.13195] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 09/18/2018] [Accepted: 12/14/2018] [Indexed: 11/27/2022]
Abstract
The Consortium Linking Academic and Regulatory Insights on BPA Toxicity (CLARITY-BPA) involved the Food and Drug Administration, the National Toxicology Program and 14 academic investigators funded by the National Institute of Environmental Health Sciences. Two key questions to be answered by CLARITY-BPA were as follows: (1) Would the academic investigator studies show effects at low doses of bisphenol A (BPA) while the core guideline study conducted by the FDA only showed toxic effects at high doses? (2) Would the academic investigators be able to replicate their numerous prior studies with animals raised and treated in the FDA's toxicology centre? Several flaws in the design and execution of CLARITY-BPA biased the experiment towards not finding significant results (Type 2 error): (1) use of the oestrogen-insensitive NCTR CD-SD rat, (2) use of a stressful daily gavage BPA administration procedure throughout life, (3) lack of inclusion of non-gavaged negative controls and (4) lack of a comprehensive examination of animals for BPA contamination. In spite of these flaws, in some of the experiments conducted by CLARITY-BPA academic investigators, and also in the FDA's core study, there were significant low-dose effects, but these were ignored by the FDA. Thus, immediately after releasing the results from their core portion of CLARITY-BPA, the FDA issued a statement concluding BPA was "safe," and they ignored non-monotonic dose-response relationships. The FDA should not base its BPA risk assessment only on outdated guideline studies, but instead on the vast (~8000) number of publications documenting the similar health hazards BPA poses to animals and humans.
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Affiliation(s)
- Frederick S Vom Saal
- Division of Biological Sciences, University of Missouri-Columbia, Columbia, Missouri
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15
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Jones RL, Lang SA, Kendziorski JA, Greene AD, Burns KA. Use of a Mouse Model of Experimentally Induced Endometriosis to Evaluate and Compare the Effects of Bisphenol A and Bisphenol AF Exposure. Environ Health Perspect 2018; 126:127004. [PMID: 30675821 PMCID: PMC6371646 DOI: 10.1289/ehp3802] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/09/2018] [Accepted: 11/15/2018] [Indexed: 05/06/2023]
Abstract
BACKGROUND Endometriosis is a gynecological disease affecting 1 in 10 women of reproductive age. Endometriosis incidence has risen; however, whether this rise is due to disease awareness or environmental contamination is not known. OBJECTIVE The objective of this study was to determine if bisphenol A (BPA) or bisphenol AF (BPAF) potentiate the development of endometriosis and if hormonal status alters how toxicant exposure affects disease. METHODS A mouse model of endometriosis, where minced uterine tissue is injected into the peritoneal cavity of a host mouse, was used to examine the effects of BPA and BPAF on endometriosis lesion development in ovariectomized and hormonally intact mice. BPA and BPAF were delivered through diet to include no-observed-adverse-effect-level (NOAEL) and the low-observed-adverse-effect-level (LOAEL) exposure levels. After six weeks (at necropsy), lesions, ovaries, and blood were collected to examine characteristics, gene expression, and hormonal regulation. RESULTS BPA and BPAF treatments affected endometriosis in a manner specific to dose and hormonal status of the host mouse. Estrogen and endometriosis-mediated differences in lesion target gene expression also depended on hormonal status. In intact mice, ovarian steroidogenic pathways were disrupted, progesterone levels were lowered, and atretic oocyte numbers were higher with toxicant exposure. BPAF, more so than BPA, resulted in more endometriosis lesion growth, but both toxicants disrupted normal ovarian signaling. CONCLUSION These findings further our understanding of the effects and hormonal impacts of BPA and BPAF on endometriosis perturbation in ovariectomized and hormonally intact mice. BPAF appeared to be similar if not more estrogenic than BPA and may be affecting an environmental contribution of the increased incidence of endometriosis. https://doi.org/10.1289/EHP3802.
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Affiliation(s)
- Rebecca L Jones
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Stephanie A Lang
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jessica A Kendziorski
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Alexis D Greene
- Department of Obstetrics and Gynecology, University of Cincinnati Center for Reproductive Health, Cincinnati, Ohio, USA
| | - Katherine A Burns
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Zhang T, Zhou Y, Li L, Zhao Y, De Felici M, Reiter RJ, Shen W. Melatonin protects prepuberal testis from deleterious effects of bisphenol A or diethylhexyl phthalate by preserving H3K9 methylation. J Pineal Res 2018; 65:e12497. [PMID: 29655234 DOI: 10.1111/jpi.12497] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/30/2018] [Indexed: 12/13/2022]
Abstract
A growing number of couples experience fertility issues with almost half being due to malefactors. The exposure to toxic environmental contaminants, such as endocrine disruptors (EDs), has been shown to negatively affect male fertility. EDs are present in the environment, and exposure to these toxins results in the failure of spermatogenesis. The deleterious effects of EDs on spermatogenesis have been well documented, whereas improvement of infertility associated with spermatogenesis defects remains a great challenge. Herein, we report that in vitro exposure of prepuberal mouse testes to two well-known endocrine disruptors (EDs), bisphenol A (BPA) or diethylhexyl phthalate (DEHP), impairs spermatogenesis with perturbing self-renewal, spermatogonia activity, and meiosis. Evidence indicates that such effects are likely due, at least in part, to decreased G9a-dependent H3K9 di-methylation. Of note, we found that melatonin (MLT) protected the testis from the negative ED impacts with preserving spermatogonia stem and meiotic cells, along with maintaining normal H3K9 di-methylation in these cells. Taken together, this work documents that BPA and EDHP adversely affect prepuberal spermatogenesis and perturb crucial epigenetic activities in male germ cells and highlight the protective ability of MLT.
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Affiliation(s)
- Teng Zhang
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Yang Zhou
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
- State Key Laboratory of Stem Cells and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Lan Li
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Yong Zhao
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
| | - Massimo De Felici
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health, San Antonio, TX, USA
| | - Wei Shen
- College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao, China
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Go G, Lee S, Jo A, Lee J, Kang J, Yang M, Bae G. Bisphenol A and estradiol impede myoblast differentiation through down-regulating Akt signaling pathway. Toxicol Lett 2018; 292:12-9. [DOI: 10.1016/j.toxlet.2018.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/12/2018] [Accepted: 04/16/2018] [Indexed: 01/06/2023]
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Abstract
Background & objectives: Bisphenol A (BPA) is an endocrine disruptor that is widely used in the manufacture of polycarbonate plastics, epoxy resins and dental sealants. It is known to have adverse effects on spermatogenesis in rodents. This study was aimed to evaluate the effects of BPA in adult common marmoset owing to its similarities with human spermatogenesis. Methods: Sixteen marmosets were divided into four groups (n=4 per group) and given oral doses of BPA (2.5, 12.5 and 25 μg/kg BW/day) for 70 days to cover two spermatogenic cycles, and the control group received only vehicle (honey). Testes were processed for histological and transmission electron microscopy studies. Results: Histology of the testis showed sloughing of germ cells into the lumen, increase in interstitial space and vacuolation of Sertoli cell cytoplasm. Ultrastructural analysis of the testis revealed several degenerative effects on the basement membrane, Sertoli cells, Leydig cells and other developing germ cells in the 12.5 and 25 μg/kg BW/day groups as compared to control. Interpretation & conclusions: The observed ultrastructural changes caused by BPA in testicular morphology might be indicative of a perturbed sperm production. Considering the genetic and spermatogenic similarities of common marmoset (Callithrix jacchus) and humans, the study findings are of significance. Further studies are, however, needed to elucidate the mechanism of action.
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Affiliation(s)
- Tushara Vijaykumar
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Dipty Singh
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Geeta R Vanage
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Rohit V Dhumal
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Vikas D Dighe
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
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19
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Acevedo N, Rubin BS, Schaeberle CM, Soto AM. Perinatal BPA exposure and reproductive axis function in CD-1 mice. Reprod Toxicol 2018; 79:39-46. [PMID: 29752986 DOI: 10.1016/j.reprotox.2018.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 05/03/2018] [Accepted: 05/08/2018] [Indexed: 11/30/2022]
Abstract
Perinatal Bisphenol-A (BPA) exposure reduces fertility and fecundity in mice. This study examined effects of early BPA exposure on activation of gonadotropin releasing hormone (GnRH) neurons in conjunction with a steroid-induced luteinizing hormone (LH) surge, characterized patterns of estrous cyclicity and fertility over time, and assessed the ovarian follicular reserve to further explore factors responsible for the reduced fertility we previously described in this model. The percent activated GnRH neurons was reduced in BPA-exposed females at 3-6 months, and periods of persistent proestrus were increased. These data suggest that perinatal exposure to BPA reduces GnRH neuronal activation required for the generation of the LH surge and estrous cyclicity. Assessments of anti-Müllerian hormone (AMH) levels failed to suggest a decline in the follicular reserve at the BPA exposure levels examined.
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Affiliation(s)
- Nicole Acevedo
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, 02111, USA, USA
| | - Beverly S Rubin
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, 02111, USA, USA
| | - Cheryl M Schaeberle
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, 02111, USA, USA
| | - Ana M Soto
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, 02111, USA, USA.
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20
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Sui Y, Park SH, Wang F, Zhou C. Perinatal Bisphenol A Exposure Increases Atherosclerosis in Adult Male PXR-Humanized Mice. Endocrinology 2018; 159:1595-1608. [PMID: 29425287 PMCID: PMC5939635 DOI: 10.1210/en.2017-03250] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 01/31/2018] [Indexed: 01/19/2023]
Abstract
Bisphenol A (BPA) is a base chemical used extensively in numerous consumer products, and human exposure to BPA is ubiquitous. Higher BPA exposure has been associated with an increased risk of atherosclerosis and cardiovascular disease (CVD) in multiple human population-based studies. However, the underlying mechanisms responsible for the associations remain elusive. We previously reported that BPA activates the xenobiotic receptor pregnane X receptor (PXR), which has proatherogenic effects in animal models. Because BPA is a potent agonist for human PXR but does not affect rodent PXR activity, a suitable PXR-humanized apolipoprotein E-deficient (huPXR•ApoE-/-) mouse model was developed to study BPA's atherogenic effects. Chronic BPA exposure increased atherosclerosis in the huPXR•ApoE-/- mice. We report that BPA exposure can also activate human PXR signaling in the heart tubes of huPXR•ApoE-/- embryos, and perinatal BPA exposure exacerbated atherosclerosis in adult male huPXR•ApoE-/- offspring. However, atherosclerosis development in female offspring was not affected by perinatal BPA exposure. Perinatal BPA exposure did not affect plasma lipid levels but increased aortic and atherosclerotic lesional fatty acid transporter CD36 expression in male huPXR•ApoE-/- offspring. Mechanistically, PXR epigenetically regulated CD36 expression by increasing H3K4me3 levels and decreasing H3K27me3 levels in the CD36 promoter in response to perinatal BPA exposure. The findings from the present study contribute to our understanding of the association between BPA exposure and increased atherosclerosis or CVD risk in humans, and activation of human PXR should be considered for future BPA risk assessment.
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Affiliation(s)
- Yipeng Sui
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Se-Hyung Park
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Fang Wang
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Changcheng Zhou
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
- Correspondence: Changcheng Zhou, PhD, Department of Pharmacology and Nutritional Sciences, University of Kentucky, 900 South Limestone Street, #517, Lexington, Kentucky 40536. E-mail:
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21
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Wang Z, Yu J, Yao J, Wu L, Xiao H, Wang J, Gao R. Simultaneous identification and quantification of bisphenol A and 12 bisphenol analogues in environmental samples using precolumn derivatization and ultra high performance liquid chromatography with tandem mass spectrometry. J Sep Sci 2018; 41:2269-2278. [PMID: 29427346 DOI: 10.1002/jssc.201701087] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 09/21/2017] [Revised: 01/22/2018] [Accepted: 01/29/2018] [Indexed: 11/10/2022]
Abstract
A method for the identification and quantification of bisphenol A and 12 bisphenol analogues in river water and sediment samples combining liquid-liquid extraction, precolumn derivatization, and ultra high-performance liquid chromatography coupled with tandem mass spectrometry was developed and validated. Analytes were extracted from the river water sample using a liquid-liquid extraction method. Dansyl chloride was selected as a derivatization reagent. Derivatization reaction conditions affecting production of the dansyl derivatives were tested and optimized. All the derivatized target compounds were well separated and eluted in 10 min. Dansyl chloride labeled compounds were analyzed using a high-resolution mass spectrometer with electrospray ionization in the positive mode, and the results were confirmed and quantified in the parallel reaction monitoring mode. The method validation results showed a satisfactory level of sensitivity. Linearity was assessed using matrix-matched standard calibration, and good correlation coefficients were obtained. The limits of quantification for the analytes ranged from 0.005 to 0.02 ng/mL in river water and from 0.15 to 0.80 ng/g in sediment. Good reproducibility of the method in terms of intra- and interday precision was achieved, yielding relative standard deviations of less than 10.1 and 11.6%, respectively. Finally, this method was successfully applied to the analysis of real samples.
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Affiliation(s)
- Zhonghe Wang
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jing Yu
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jiaxi Yao
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Linlin Wu
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Hang Xiao
- Department of Toxicology, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Jun Wang
- Department of Toxicology, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
| | - Rong Gao
- Department of Hygienic Analysis and Detection, Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, P. R. China
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22
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Adoamnei E, Mendiola J, Vela-Soria F, Fernández MF, Olea N, Jørgensen N, Swan SH, Torres-Cantero AM. Urinary bisphenol A concentrations are associated with reproductive parameters in young men. Environ Res 2018; 161:122-128. [PMID: 29156341 DOI: 10.1016/j.envres.2017.11.002] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/09/2017] [Accepted: 11/01/2017] [Indexed: 05/22/2023]
Abstract
Bisphenol A (BPA) is a pervasive environmental toxicant with known reproductive effects on sperm parameters and hormone levels. Several observational studies have investigated the associations between BPA exposure and male reproductive function, but findings are inconsistent. The objective of this study was to assess the associations between urinary BPA concentrations and semen quality and reproductive hormone levels in a cross-sectional study with 215 healthy young university students (18-23 years old), investigated between 2010 and 2011 in Southern Spain (Murcia Region). All subjects provided urine, blood serum and semen samples on a single day. Urinary BPA concentrations were measured by dispersive liquid-liquid microextraction and ultra-high performance liquid chromatography with tandem mass spectrometry detection. Semen quality was evaluated by measuring volume, concentration, motility, morphology and total sperm count (TSC). Serum samples were analyzed for reproductive hormones, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone, inhibin B and estradiol. Relationships between urinary BPA concentrations and semen quality parameters and reproductive hormone levels were examined using linear regression, adjusting for potential confounders and covariates. Ninety-five percent of the men had detectable urinary BPA concentrations with unadjusted median (5th-95th) of 2.8 (0.16-11.5) ng/mL. After adjustment for important covariates, there was a significant positive association between urinary BPA concentrations and serum LH levels (β = 0.07, 95%CI: 0.02;0.12, p-value < 0.01). Urinary BPA concentration was also significantly and inversely associated with sperm concentration (β = - 0.04, 95%CI: - 0.07;- 0.02, p-value < 0.01) and TSC (β = - 0.05, 95%CI: - 0.08;- 0.02, p-value < 0.01). No significant associations were found between BPA and other semen parameters or reproductive hormone levels. Our results support the hypothesis that BPA exposure may be associated with a reduction in Leydig cell capacity (increased LH levels) and decreased sperm counts in young men.
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Affiliation(s)
- Evdochia Adoamnei
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Murcia, Spain
| | - Jaime Mendiola
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Murcia, Spain; Health Research Methodology Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), El Palmar, 30120 Murcia, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain.
| | - Fernando Vela-Soria
- CIBER de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Departamento de Radiología y Medicina Física, Universidad de Granada, Granada, Spain
| | - Mariana F Fernández
- CIBER de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Departamento de Radiología y Medicina Física, Universidad de Granada, Granada, Spain
| | - Nicolás Olea
- CIBER de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; Instituto de Investigación Biosanitaria (ibs. GRANADA), Hospitales Universitarios de Granada, Departamento de Radiología y Medicina Física, Universidad de Granada, Granada, Spain
| | - Niels Jørgensen
- Department of Growth and Reproduction, and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Denmark
| | - Shanna H Swan
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, 10029 New York, NY, USA
| | - Alberto M Torres-Cantero
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Murcia, Spain; Health Research Methodology Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), El Palmar, 30120 Murcia, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain; Department of Preventive Medicine, "Virgen de la Arrixaca" University Clinical Hospital, El Palmar, 30120 Murcia, Spain
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da Conceição RR, de Souza JS, de Oliveira KC, de Barros Maciel RM, Romano MA, Romano RM, da Silva MRD, Chiamolera MI, Giannocco G. Anatomical specificity of the brain in the modulation of Neuroglobin and Cytoglobin genes after chronic bisphenol a exposure. Metab Brain Dis 2017; 32:1843-1851. [PMID: 28721559 DOI: 10.1007/s11011-017-0066-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/06/2017] [Indexed: 01/23/2023]
Abstract
The aim of this study was to investigate the influence of Bisphenol A (BPA) exposure on Neuroglobin (Ngb) and Cytoglobin (Cygb) as well as oxidative stress gene expression in the cerebellum, hippocampus, hypothalamus and cortex. Male Wistar rats were randomly divided into 3 groups: Control and two groups receiving 2 different daily BPA dosages, 5 or 25 mg/kg from postnatal day 50 (PND50) through PND90 and they were euthanized at PND105. In the cortex, we found an increase in Ngb gene expression and also in superoxide dismutase 1 and Catalase (Cat). In the cerebellum, we found an increase in Ngb and Cat, in the hypothalamus, there was a decrease in Cygb and an increase in glutathione peroxidase and Cat and in hypoxia-inducible factor 1 alpha (Hif1α) at the low dosage and a decrease in Hif1α at the high BPA dosage. Finally, in the hippocampus, we observed a decrease in Ngb and Cygb and an increase in Hif1α. In summary, BPA promotes the modulation of both Ngb and Cygb, but such changes occur by different mechanisms depending on the exposure dose and anatomical area.
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Affiliation(s)
- Rodrigo Rodrigues da Conceição
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Janaina Sena de Souza
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Kelen Carneiro de Oliveira
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Rui Monteiro de Barros Maciel
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Marco Aurélio Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Renata Marino Romano
- Department of Pharmacy, State University of Centro-Oeste, Curitiba, Parana, Brazil
| | - Magnus Régios Dias da Silva
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Maria Izabel Chiamolera
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil
| | - Gisele Giannocco
- Laboratory of Molecular and Translational Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (Unifesp/EPM), São Paulo, SP, Brazil.
- Department of Biological Sciences, Universidade Federal de São Paulo, Diadema, SP, Brazil.
- Laboratório de Endocriologia Molecular e Translacional, Departamento de Medicina, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo, Vila Clementino, Sao Paulo, SP, 04039032, Brazil.
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Huang RP, Liu ZH, Yuan SF, Yin H, Dang Z, Wu PX. Worldwide human daily intakes of bisphenol A (BPA) estimated from global urinary concentration data (2000-2016) and its risk analysis. Environ Pollut 2017; 230:143-152. [PMID: 28649042 DOI: 10.1016/j.envpol.2017.06.026] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/23/2017] [Accepted: 06/11/2017] [Indexed: 05/26/2023]
Abstract
To evaluate BPA's potential risk to health, it is important to know human daily intake. This study describes a simple but effective method to estimate the levels of human BPA intake among four different populations based on urinary concentration data. Nationally, of the 30 countries examined, the top ten countries for adult intake were Italy, Sweden, Denmark, France, Cyprus, Australia, Israel, Ghana, Jamaica, and Belgium. When the urinary excretion sample size was large enough and over 1000, it was found that the national estimated BPA daily intakes in the child group among countries, showed a good linear relationship with those of their corresponding adult group. Except the infant group with limited data, the global estimated BPA daily intakes for children and pregnant women were 2 and 1.4 times that of the adult group. Although the national and global estimated BPA daily intakes were generally below the temporary tolerable daily intake (tTDI) recommended by the European Food Safety Authority (EFSA), but some normal individuals' daily intakes exceeded the tTDI.
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Affiliation(s)
- Ri-Ping Huang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Ze-Hua Liu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China; Key Lab Pollution Control & Ecosystem Restoration in Industry Cluster, Ministry of Education, Guangzhou 510006, Guangdong, China; Guangdong Environmental Protection Key Laboratory of Solid Waste Treatment and Recycling, Guangzhou, 510006, Guangdong, China; Guangdong Provincial Engineering and Technology Research Center for Environment Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou, 510006, Guangdong, China.
| | - Su-Fen Yuan
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Hua Yin
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Ping-Xiao Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, China
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Vijaykumar T, Singh D, Vanage GR, Dhumal RV, Dighe VD. Bisphenol A-induced ultrastructural changes in the testes of common marmoset. Indian J Med Res 2017; 146:126-137. [PMID: 29168469 DOI: 10.4103/ijmr_927_15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND & OBJECTIVES Bisphenol A (BPA) is an endocrine disruptor that is widely used in the manufacture of polycarbonate plastics, epoxy resins and dental sealants. It is known to have adverse effects on spermatogenesis in rodents. This study was aimed to evaluate the effects of BPA in adult common marmoset owing to its similarities with human spermatogenesis. METHODS Sixteen marmosets were divided into four groups (n=4 per group) and given oral doses of BPA (2.5, 12.5 and 25 μg/kg BW/day) for 70 days to cover two spermatogenic cycles, and the control group received only vehicle (honey). Testes were processed for histological and transmission electron microscopy studies. RESULTS Histology of the testis showed sloughing of germ cells into the lumen, increase in interstitial space and vacuolation of Sertoli cell cytoplasm. Ultrastructural analysis of the testis revealed several degenerative effects on the basement membrane, Sertoli cells, Leydig cells and other developing germ cells in the 12.5 and 25 μg/kg BW/day groups as compared to control. INTERPRETATION & CONCLUSIONS The observed ultrastructural changes caused by BPA in testicular morphology might be indicative of a perturbed sperm production. Considering the genetic and spermatogenic similarities of common marmoset (Callithrix jacchus) and humans, the study findings are of significance. Further studies are, however, needed to elucidate the mechanism of action.
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Affiliation(s)
- Tushara Vijaykumar
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Dipty Singh
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Geeta R Vanage
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Rohit V Dhumal
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
| | - Vikas D Dighe
- National Centre for Preclinical Reproductive & Genetic Toxicology, ICMR-National Institute for Research in Reproductive Health, Mumbai, India
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Jung J, Mok C, Lee W, Jang W. Meta-analysis of microarray and RNA-Seq gene expression datasets for carcinogenic risk: An assessment of Bisphenol A. Mol Cell Toxicol 2017; 13:239-49. [DOI: 10.1007/s13273-017-0026-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Mas S, Egido J, González-Parra E. The importance of bisphenol A, an uraemic toxin from exogenous sources, in haemodialysis patients. Nefrologia 2017; 37:229-234. [PMID: 28392019 DOI: 10.1016/j.nefro.2017.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 11/29/2016] [Accepted: 01/27/2017] [Indexed: 12/23/2022] Open
Affiliation(s)
- Sebastián Mas
- Servicio de Nefrología e Hipertensión II-S, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España.
| | - Jesús Egido
- Servicio de Nefrología e Hipertensión II-S, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España
| | - Emilio González-Parra
- Servicio de Nefrología e Hipertensión II-S, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España
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- Servicio de Nefrología e Hipertensión II-S, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, España
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Zhang M, Dai X, Lu Y, Miao Y, Zhou C, Cui Z, Liu H, Xiong B. Melatonin protects oocyte quality from Bisphenol A-induced deterioration in the mouse. J Pineal Res 2017; 62. [PMID: 28178360 DOI: 10.1111/jpi.12396] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/03/2017] [Indexed: 01/02/2023]
Abstract
Bisphenol A (BPA) has been reported to adversely affect the mammalian reproductive system in both sexes. However, the underlying mechanisms regarding how BPA disrupts the mammalian oocyte quality and how to prevent it have not been fully defined. Here, we document that BPA weakens oocyte quality by impairing both oocyte meiotic maturation and fertilization ability. We find that oral administration of BPA (100 μg/kg body weight per day for 7 days) compromises the first polar body extrusion (78.0% vs 57.0%, P<.05) by disrupting normal spindle assembly, chromosome alignment, and kinetochore-microtubule attachment. This defect could be remarkably ameliorated (76.7%, P<.05) by concurrent oral administration of melatonin (30 mg/kg body weight per day for 7 days). In addition, BPA administration significantly decreases the fertilization rate of oocytes (87.2% vs 41.1%, P<.05) by reducing the number of sperm binding to the zona pellucida, which is consistent with the premature cleavage of ZP2 as well as the mis-localization and decreased protein level of ovastacin. Also, the localization and protein level of Juno, the sperm receptor on the egg membrane, are strikingly impaired in BPA-administered oocytes. Finally, we show that melatonin administration substantially elevates the in vitro fertilization rate (63.0%, P<.05) by restoring above defects of fertilization proteins and events, which might be mediated by the improvement of oocyte quality via reduction of ROS levels and inhibition of apoptosis. Collectively, our data reveal that melatonin has a protective action against BPA-induced deterioration of oocyte quality in mice.
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Affiliation(s)
- Mianqun Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xiaoxin Dai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yajuan Lu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Changyin Zhou
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaokang Cui
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Honglin Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Bo Xiong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Andra SS, Austin C, Yang J, Patel D, Arora M. Recent advances in simultaneous analysis of bisphenol A and its conjugates in human matrices: Exposure biomarker perspectives. Sci Total Environ 2016; 572:770-781. [PMID: 27586167 PMCID: PMC5099122 DOI: 10.1016/j.scitotenv.2016.07.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 04/16/2016] [Revised: 07/06/2016] [Accepted: 07/09/2016] [Indexed: 05/26/2023]
Abstract
Human exposures to bisphenol A (BPA) has attained considerable global health attention and represents one of the leading environmental contaminants with potential adverse health effects including endocrine disruption. Current practice of measuring of exposure to BPA includes the measurement of unconjugated BPA (aglycone) and total (both conjugated and unconjugated) BPA; the difference between the two measurements leads to estimation of conjugated forms. However, the measurement of BPA as the end analyte leads to inaccurate estimates from potential interferences from background sources during sample collection and analysis. BPA glucuronides (BPAG) and sulfates (BPAS) represent better candidates for biomarkers of BPA exposure, since they require in vivo metabolism and are not prone to external contamination. In this work, the primary focus was to review the current state of the art in analytical methods available to quantitate BPA conjugates. The entire analytical procedure for the simultaneous extraction and detection of aglycone BPA and conjugates is covered, from sample pre-treatment, extraction, separation, ionization, and detection. Solid phase extraction coupled with liquid chromatograph and tandem mass spectrometer analysis provides the most sensitive detection and quantification of BPA conjugates. Discussed herein are the applications of BPA conjugates analysis in human exposure assessment studies. Measuring these potential biomarkers of BPA exposure has only recently become analytically feasible and there are limitations and challenges to overcome in biomonitoring studies.
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Affiliation(s)
- Syam S Andra
- Exposure Biology, Lautenberg Environmental Health Sciences Laboratory, Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Christine Austin
- Exposure Biology, Lautenberg Environmental Health Sciences Laboratory, Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Juan Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Dhavalkumar Patel
- Exposure Biology, Lautenberg Environmental Health Sciences Laboratory, Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Manish Arora
- Exposure Biology, Lautenberg Environmental Health Sciences Laboratory, Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Bonon AJ, Weck M, Bonfante EA, Coelho PG. Physicochemical characterization of three fiber-reinforced epoxide-based composites for dental applications. Materials Science and Engineering: C 2016; 69:905-13. [DOI: 10.1016/j.msec.2016.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 06/26/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
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Javurek AB, Spollen WG, Johnson SA, Bivens NJ, Bromert KH, Givan SA, Rosenfeld CS. Effects of exposure to bisphenol A and ethinyl estradiol on the gut microbiota of parents and their offspring in a rodent model. Gut Microbes 2016; 7:471-485. [PMID: 27624382 PMCID: PMC5103659 DOI: 10.1080/19490976.2016.1234657] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Gut dysbiosis may result in various diseases, such as metabolic and neurobehavioral disorders. Exposure to endocrine disrupting chemicals (EDCs), including bisphenol A (BPA) and ethinyl estradiol (EE), especially during development, may also increase the risk for such disorders. An unexplored possibility is that EDC-exposure might alter the gut microbial composition. Gut flora and their products may thus be mediating factors for the disease-causing effects of these chemicals. To examine the effects of EDCs on the gut microbiome, female and male monogamous and biparental California mice (Peromyscus californicus) were exposed to BPA (50 mg/kg feed weight) or EE (0.1 ppb) or control diet from periconception through weaning. 16s rRNA sequencing was performed on bacterial DNA isolated from fecal samples, and analyses performed for P0 and F1 males and females. Both BPA and EE induced generational and sex-dependent gut microbiome changes. Many of the bacteria, e.g. Bacteroides, Mollicutes, Prevotellaceae, Erysipelotrichaceae, Akkermansia, Methanobrevibacter, Sutterella, whose proportions increase with exposure to BPA or EE in the P0 or F1 generation are associated with different disorders, such as inflammatory bowel disease (IBD), metabolic disorders, and colorectal cancer. However, the proportion of the beneficial bacterium, Bifidobacterium, was also elevated in fecal samples of BPA- and EE-exposed F1 females. Intestinal flora alterations were also linked to changes in various metabolic and other pathways. Thus, BPA and EE exposure may disrupt the normal gut flora, which may in turn result in systemic effects. Probiotic supplementation might be an effective means to mitigate disease-promoting effects of these chemicals.
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Affiliation(s)
- Angela B. Javurek
- Bond Life Sciences Center, University of Missouri, Columbia, MO USA,Biomedical Sciences, University of Missouri, Columbia, MO USA
| | - William G. Spollen
- Bond Life Sciences Center, University of Missouri, Columbia, MO USA,Informatics Research Core Facility, University of Missouri, Columbia, MO USA
| | - Sarah A. Johnson
- Bond Life Sciences Center, University of Missouri, Columbia, MO USA,Biomedical Sciences, University of Missouri, Columbia, MO USA,Animal Sciences, University of Missouri, Columbia, MO USA
| | | | | | - Scott A. Givan
- Bond Life Sciences Center, University of Missouri, Columbia, MO USA,Informatics Research Core Facility, University of Missouri, Columbia, MO USA,Molecular Microbiology and Immunology, University of Missouri, Columbia, MO USA
| | - Cheryl S. Rosenfeld
- Bond Life Sciences Center, University of Missouri, Columbia, MO USA,Biomedical Sciences, University of Missouri, Columbia, MO USA,Genetics Area Program, University of Missouri, Columbia, MO USA,Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, MO USA,CONTACT Cheryl S. Rosenfeld, DVM, PhD Biomedical Sciences and Bond Life Sciences Center, University of Missouri, 440F Bond Life Sciences Center, 1201 E. Rollins Rd., Columbia, MO 65211
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32
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Völkel W. Why did researchers not use realistic doses in animal studies of bisphenol A? Arch Toxicol 2017; 91:1519-22. [DOI: 10.1007/s00204-016-1840-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 08/25/2016] [Indexed: 12/19/2022]
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Rubin BS, Paranjpe M, DaFonte T, Schaeberle C, Soto AM, Obin M, Greenberg AS. Perinatal BPA exposure alters body weight and composition in a dose specific and sex specific manner: The addition of peripubertal exposure exacerbates adverse effects in female mice. Reprod Toxicol 2017; 68:130-44. [PMID: 27496714 DOI: 10.1016/j.reprotox.2016.07.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/27/2016] [Accepted: 07/31/2016] [Indexed: 12/20/2022]
Abstract
Body weight (BW) and body composition were examined in CD-1 mice exposed perinatally or perinatally and peripubertally to 0, 0.25, 2.5, 25, or 250μg BPA/kg BW/day. Our goal was to identify the BPA dose (s) and the exposure window(s) that increased BW and adiposity, and to assess potential sex differences in this response. Both perinatal exposure alone and perinatal plus peripubertal exposure to environmentally relevant levels of BPA resulted in lasting effects on body weight and body composition. The effects were dose specific and sex specific and were influenced by the precise window of BPA exposure. The addition of peripubertal BPA exposure following the initial perinatal exposure exacerbated adverse effects in the females but appeared to reduce differences in body weight and body composition between control and BPA exposed males. Some effects of BPA on body weight and body composition showed a non-linear dose response.
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Maserejian NN, Trachtenberg FL, Wheaton OB, Calafat AM, Ranganathan G, Kim HY, Hauser R. Changes in urinary bisphenol A concentrations associated with placement of dental composite restorations in children and adolescents. J Am Dent Assoc 2016; 147:620-30. [PMID: 27083778 PMCID: PMC4967008 DOI: 10.1016/j.adaj.2016.02.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 02/08/2016] [Accepted: 02/13/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND Bisphenol A-glycidyl methacrylate (bis-GMA)-based dental composite restorations may release bisphenol A (BPA). The authors assessed changes in urinary BPA concentrations over a 6-month follow-up period in children and adolescents who received bis-GMA-based restorations. METHODS The authors collected data from 91 study participants aged 3 to 17 years who needed composite restorations. Participants provided urine samples and information on BPA-related exposures before and at approximately 1 day, 14 days, and 6 months after treatment. The authors used multivariable linear regression models to test associations between the number of surface restorations placed and the changes in urinary BPA concentrations. RESULTS Participants had a mean (standard deviation [SD]) of 1.4 (1.0) for surfaces restored with composite at the first treatment visit and 2.3 (1.6) for surfaces restored during the entire study period. Mean (SD) change in urinary BPA concentrations between pretreatment and day 1 was 1.71 (9.94) nanograms per milliliter overall and 0.87 (5.98) after excluding 1 participant who had 8 surfaces restored at the visit. Overall, the authors observed an association between a greater number of composite surface restorations placed and higher urinary BPA concentrations in the 1-day sample (posterior-occlusal exponentiated coefficients [e(β)] = 1.47; 95% confidence interval [CI], 1.18-1.83; P < .001), but the association was attenuated after the authors restricted the sample to the 88 participants who had up to 4 restorations (e(β) = 1.19; 95% CI, 0.86-1.64), and they did not observe any association using 14-day (e(β) = 0.94; 95% CI, 0.75-1.18) or 6-month (e(β) = 0.88; 95% CI, 0.74-1.04) samples. CONCLUSIONS Placement of bis-GMA-based restorations in children and adolescents may produce transient increases in urinary BPA concentrations that are no longer detectable in urine samples taken approximately 14 days or 6 months after treatment. After placement of a few restorations, increases in urinary BPA concentrations may not be detectable, owing to a high level of variation in background BPA exposure. PRACTICAL IMPLICATIONS These results suggest that leaching of BPA from newly placed composite restorations ceases to be detectable in urine within 2 weeks after restoration placement. The potential human health impact of such short-term exposure remains uncertain.
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Othman AI, Edrees GM, El-Missiry MA, Ali DA, Aboel-Nour M, Dabdoub BR. Melatonin controlled apoptosis and protected the testes and sperm quality against bisphenol A-induced oxidative toxicity. Toxicol Ind Health 2016; 32:1537-49. [DOI: 10.1177/0748233714561286] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Epidemiological reports have indicated a correlation between the increasing bisphenol A (BPA) levels in the environment and the incidence of male infertility. In this study, the protective effects of melatonin on BPA-induced oxidative stress and apoptosis were investigated in the rat testes and epididymal sperm. Melatonin (10 mg/kg body weight (bw)) was injected concurrently with BPA (50 mg/kg bw) for 3 and 6 weeks. The administration of BPA significantly increased oxidative stress in the testes and epididymal sperm. This was associated with a decrease in the serum testosterone level as well as sperm quality, chromatin condensation/de-condensation level, and the percentage of haploid germ cells in the semen. BPA administration caused a significant increase in apoptosis accompanied by a decrease in the expression of the antiapoptotic proteins Bcl-2 in the testes and epididymal sperm. The concurrent administration of melatonin decreased oxidative stress by modulating the levels of glutathione, superoxide dismutase, and catalase as well as the malondialdehyde and hydrogen peroxide concentrations in the testes and sperm. Melatonin sustained Bcl-2 expression and controlled apoptosis. Furthermore, melatonin maintained the testosterone levels, ameliorated histopathological changes, increased the percentages of seminal haploid germ cells, and protected sperm chromatin condensation process, indicating appropriate spermatogenesis with production of functional sperm. In conclusion, melatonin protected against BPA-induced apoptosis by controlling Bcl-2 expression and ameliorating oxidative stress in the testes and sperm. Thus, melatonin is a promising pharmacological agent for preventing the potential reproductive toxicity of BPA following occupational or environmental exposures.
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Affiliation(s)
- Azza I Othman
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Gamal M Edrees
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | | | - Doaa A Ali
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mohamed Aboel-Nour
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Banan R Dabdoub
- Department of Biology, Faculty of Education, Mosul University, Mosul, Iraq
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Chen Y, Shu L, Qiu Z, Lee DY, Settle SJ, Que Hee S, Telesca D, Yang X, Allard P. Exposure to the BPA-Substitute Bisphenol S Causes Unique Alterations of Germline Function. PLoS Genet 2016; 12:e1006223. [PMID: 27472198 PMCID: PMC4966967 DOI: 10.1371/journal.pgen.1006223] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 07/06/2016] [Indexed: 11/19/2022] Open
Abstract
Concerns about the safety of Bisphenol A, a chemical found in plastics, receipts, food packaging and more, have led to its replacement with substitutes now found in a multitude of consumer products. However, several popular BPA-free alternatives, such as Bisphenol S, share a high degree of structural similarity with BPA, suggesting that these substitutes may disrupt similar developmental and reproductive pathways. We compared the effects of BPA and BPS on germline and reproductive functions using the genetic model system Caenorhabditis elegans. We found that, similarly to BPA, BPS caused severe reproductive defects including germline apoptosis and embryonic lethality. However, meiotic recombination, targeted gene expression, whole transcriptome and ontology analyses as well as ToxCast data mining all indicate that these effects are partly achieved via mechanisms distinct from BPAs. These findings therefore raise new concerns about the safety of BPA alternatives and the risk associated with human exposure to mixtures.
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Affiliation(s)
- Yichang Chen
- Molecular Toxicology Inter-departmental Program, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Le Shu
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Zhiqun Qiu
- Department of Environmental Health Sciences, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Dong Yeon Lee
- Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Sara J. Settle
- Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Shane Que Hee
- Department of Environmental Health Sciences, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Donatello Telesca
- Department of Biostatistics, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Xia Yang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California, United States of America
| | - Patrick Allard
- Molecular Toxicology Inter-departmental Program, University of California, Los Angeles, Los Angeles, California, United States of America
- Department of Environmental Health Sciences, University of California, Los Angeles, Los Angeles, California, United States of America
- Institute for Society and Genetics, University of California, Los Angeles, Los Angeles, California, United States of America
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Ahmed S, Atlas E. Bisphenol S- and bisphenol A-induced adipogenesis of murine preadipocytes occurs through direct peroxisome proliferator-activated receptor gamma activation. Int J Obes (Lond) 2016; 40:1566-1573. [PMID: 27273607 DOI: 10.1038/ijo.2016.95] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 04/08/2016] [Accepted: 04/30/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND/OBJECTIVES The use of bisphenol A (BPA) in consumer products and food packaging has been associated under certain conditions with a risk of negative health outcomes. This prompted its removal from many products and replacement with structural analogs. Bisphenol S (BPS) is one such analog, but its metabolic effects have not been fully characterized. The objective of our study was to determine whether BPS functions similarly to BPA at inducing adipogenesis. METHODS Murine 3T3-L1 preadipocytes were used to evaluate and compare the adipogenic potential of BPS to BPA. Cells were treated with 0.01-50 μM BPS or 0.01-50 μM BPA and adipogenic effects were measured. Further, their ability to activate peroxisome proliferator-activated receptor gamma (PPARγ), an adipogenic transcription factor, was also determined. RESULTS Our results indicate that treatment of 3T3-L1 cells with BPS induced lipid accumulation and increased mRNA and protein expression of key adipogenic markers (1-50 μM; P<0.05). BPS treatment resulted in a higher expression of adipogenic markers as well as greater lipid accumulation when compared with BPA treatment. We showed that BPS can upregulate lipoprotein lipase, adipocyte protein 2, PPARγ, perilipin, adipsin and CCAAT/enhancer-binding protein alpha mRNA expression levels. Furthermore, using transcriptional assays, we showed that BPS and BPA can modestly activate PPARγ using a PPRE (PPARγ response element)-dependent luciferase construct by 1.5-fold (P<0.05). However, BPS but not BPA was able to competitively inhibit rosiglitazone (ROSI)-activated PPARγ, suggesting that BPS interacts with PPARγ distinctly from BPA. Co-treatment of cells with the selective PPARγ antagonist GW9662 inhibits BPS-, BPA-, ROSI- but not dexamethasone-dependent adipogenic differentiation. CONCLUSIONS Both BPA and BPS can enhance 3T3-L1 adipocyte differentiation in a dose-dependent manner and require PPARγ to induce adipogenesis. Through direct comparison, we show that BPS is a more potent adipogen than BPA.
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Affiliation(s)
- S Ahmed
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - E Atlas
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
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Zhou C. Novel functions of PXR in cardiometabolic disease. Biochim Biophys Acta 2016; 1859:1112-1120. [PMID: 26924429 DOI: 10.1016/j.bbagrm.2016.02.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/18/2016] [Accepted: 02/19/2016] [Indexed: 12/17/2022]
Abstract
Cardiometabolic disease emerges as a worldwide epidemic and there is urgent need to understand the molecular mechanisms underlying this chronic disease. The chemical environment to which we are exposed has significantly changed in the past few decades and recent research has implicated its contribution to the development of many chronic human diseases. However, the mechanisms of how exposure to chemicals contributes to the development of cardiometabolic disease are poorly understood. Numerous chemicals have been identified as ligands for the pregnane X receptor (PXR), a nuclear receptor functioning as a xenobiotic sensor to coordinately regulate xenobiotic metabolism via transcriptional regulation of xenobiotic-detoxifying enzymes and transporters. In the past decade, the function of PXR in the regulation of xenobiotic metabolism has been extensively studied by many laboratories and the role of PXR as a xenobiotic sensor has been well-established. The identification of PXR as a xenobiotic sensor has provided an important tool for the study of new mechanisms through which xenobiotic exposure impacts human chronic diseases. Recent studies have revealed novel and unexpected roles of PXR in modulating obesity, insulin sensitivity, lipid homeostasis, atherogenesis, and vascular functions. These studies suggest that PXR signaling may contribute significantly to the pathophysiological effects of many known xenobiotics on cardiometabolic disease in humans. The discovery of novel functions of PXR in cardiometabolic disease not only contributes to our understanding of "gene-environment interactions" in predisposing individuals to chronic diseases but also provides strong evidence to inform future risk assessment for relevant chemicals. This article is part of a Special Issue entitled: Xenobiotic nuclear receptors: New Tricks for An Old Dog, edited by Dr. Wen Xie.
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Affiliation(s)
- Changcheng Zhou
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY 40536, USA; Saha Cardiovascular Research Center, University of Kentucky, Lexington, KY 40536, USA.
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Schöpel M, Herrmann C, Scherkenbeck J, Stoll R. The Bisphenol A analogue Bisphenol S binds to K-Ras4B--implications for 'BPA-free' plastics. FEBS Lett 2016; 590:369-75. [PMID: 26867649 DOI: 10.1002/1873-3468.12056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 10/20/2015] [Revised: 12/21/2015] [Accepted: 01/01/2016] [Indexed: 12/19/2022]
Abstract
K-Ras4B is a small GTPase that belongs to the Ras superfamily of guanine nucleotide-binding proteins. GTPases function as molecular switches in cells and are key players in intracellular signalling. Ras has been identified as an oncogene and is mutated in more than 20% of human cancers. Here, we report that Bisphenol S binds into a binding pocket of K-Ras4B previously identified for various low molecular weight compounds. Our results advocate for more comprehensive safety studies on the toxicity of Bisphenol S, as it is frequently used for Bisphenol A-free food containers.
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Affiliation(s)
- Miriam Schöpel
- Faculty of Chemistry and Biochemistry, Ruhr University of Bochum, Germany
| | - Christian Herrmann
- Faculty of Chemistry and Biochemistry, Ruhr University of Bochum, Germany
| | | | - Raphael Stoll
- Faculty of Chemistry and Biochemistry, Ruhr University of Bochum, Germany
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Liu C, Wu P, Zhu Y, Tran L. Simultaneous adsorption of Cd²⁺ and BPA on amphoteric surfactant activated montmorillonite. Chemosphere 2016; 144:1026-1032. [PMID: 26451652 DOI: 10.1016/j.chemosphere.2015.09.063] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 08/28/2015] [Accepted: 09/15/2015] [Indexed: 06/05/2023]
Abstract
The study mainly investigated the simultaneous adsorption of bisphenol A (BPA) and Cd(2+) from aqueous solution on octadecane-betaine modified montmorillonite (BS-Mt). The characteristics of the obtained materials were analyzed by X-ray diffraction (XRD), Fourier-transform infrared (FTIR), Specific surface area (BET) and Scanning electron microscopy/Energy disperse spectroscopy (SEM/EDS), confirming that BS-18 was successfully introduced into Mt. Also, factors including initial solution pH, initial Cd(2+)/BPA concentration, contact time and adsorbent dosage on the adsorption processes were shown to be crucial for Cd(2+) adsorption, whereas had negligible effects on BPA adsorption. In this study, we found that pseudo-second-order model fitted well with the adsorption kinetic studies for both Cd(2+) and BPA with an equilibrium time of 24 h. The Cd(2+) and BPA adsorption isotherm could be well described by Freundlich model and Langmuir model, respectively. On the basis of kinetic models, the maximum adsorption capacity of Cd(2+) in aqueous solution was slightly enhanced after modification, indicating that Cd(2+) adsorption on BS-Mt was mainly attributed to direct electrostatic attraction and the chelate reaction, while the dramatic enhancement of maximum adsorption capacity for BPA was due to the hydrophobic interaction.
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Affiliation(s)
- Chongmin Liu
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
| | - Pingxiao Wu
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, PR China.
| | - Yajie Zhu
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
| | - Lytuong Tran
- College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou 510006, PR China
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Seachrist DD, Bonk KW, Ho SM, Prins GS, Soto AM, Keri RA. A review of the carcinogenic potential of bisphenol A. Reprod Toxicol 2015; 59:167-82. [PMID: 26493093 DOI: 10.1016/j.reprotox.2015.09.006] [Citation(s) in RCA: 251] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 09/09/2015] [Accepted: 09/18/2015] [Indexed: 12/20/2022]
Abstract
The estrogenic properties of bisphenol A (BPA), a ubiquitous synthetic monomer that can leach into the food and water supply, have prompted considerable research into exposure-associated health risks in humans. Endocrine-disrupting properties of BPA suggest it may impact developmental plasticity during early life, predisposing individuals to disease at doses below the oral reference dose (RfD) established by the Environmental Protection Agency in 1982. Herein, we review the current in vivo literature evaluating the carcinogenic properties of BPA. We conclude that there is substantial evidence from rodent studies indicating that early-life BPA exposures below the RfD lead to increased susceptibility to mammary and prostate cancer. Based on the definitions of "carcinogen" put forth by the International Agency for Research on Cancer and the National Toxicology Program, we propose that BPA may be reasonably anticipated to be a human carcinogen in the breast and prostate due to its tumor promoting properties.
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Affiliation(s)
- Darcie D Seachrist
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106-4965, USA
| | - Kristen W Bonk
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106-4965, USA
| | - Shuk-Mei Ho
- Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, USA
| | - Gail S Prins
- Departments of Urology, Physiology and Biophysics, University of Illinois, Chicago, IL 60612-7310, USA
| | - Ana M Soto
- Department of Integrative Physiology and Pathobiology, Tufts University, Boston, MA 02111, USA
| | - Ruth A Keri
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106-4965, USA.
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Autrup H, Barile FA, Blaauboer BJ, Degen GH, Dekant W, Dietrich D, Domingo JL, Gori GB, Greim H, Hengstler JG, Kacew S, Marquardt H, Pelkonen O, Savolainen K, Vermeulen NP. Principles of Pharmacology and Toxicology Also Govern Effects of Chemicals on the Endocrine System. Toxicol Sci 2015; 146:11-5. [PMID: 26026993 DOI: 10.1093/toxsci/kfv082] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 11/14/2022] Open
Abstract
The present debate on chemicals with Hormonal activity, often termed 'endocrine disruptors', is highly controversial and includes challenges of the present paradigms used in toxicology and in hazard identification and risk characterization. In our opinion, chemicals with hormonal activity can be subjected to the well-evaluated health risk characterization approach used for many years including adverse outcome pathways. Many of the points arguing for a specific approach for risk characterization of chemicals with hormonal activity are based on highly speculative conclusions. These conclusions are not well supported when evaluating the available information.
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Affiliation(s)
- Herman Autrup
- International Union of Toxicologists, Institute of Public Health, University of Aarhus, Aarhus, Denmark
| | - Frank A Barile
- College of Pharmacy and Health Sciences, St John's University, Queens, New York, USA
| | - Bas J Blaauboer
- Division of Toxicology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Gisela H Degen
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), TU Dortmund, Dortmund, Germany
| | - Wolfgang Dekant
- Department of Toxicology, University of Wuerzburg, Wuerzburg, Germany;
| | - Daniel Dietrich
- Faculty of Biology, University of Konstanz, Konstanz, Germany
| | - Jose L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat 'Rovira i Virgili', Reus, Spain
| | | | | | - Jan G Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), TU Dortmund, Dortmund, Germany
| | - Sam Kacew
- McLaughlin Centre for Risk Assessment, University of Ottawa, Ottawa, Canada
| | | | - Olavi Pelkonen
- Department of Pharmacology and Toxicology, University of Oulu, Oulu, Finland
| | - Kai Savolainen
- Nanosafety Research Centre, Finnish Institute of Occupational Health, Helsinki Finland
| | - Nico P Vermeulen
- Department of Chemistry & Pharmaceutical Sciences, Vrije Universiteit, Amsterdam, The Netherlands
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Savastano S, Tarantino G, D'Esposito V, Passaretti F, Cabaro S, Liotti A, Liguoro D, Perruolo G, Ariemma F, Finelli C, Beguinot F, Formisano P, Valentino R. Bisphenol-A plasma levels are related to inflammatory markers, visceral obesity and insulin-resistance: a cross-sectional study on adult male population. J Transl Med 2015; 13:169. [PMID: 26021871 PMCID: PMC4467609 DOI: 10.1186/s12967-015-0532-y] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [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: 03/09/2015] [Accepted: 05/12/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The current increase of obesity and metabolic syndrome (MS) focuses attention on bisphenol-A (BPA), "obesogen" endocrine disruptor, main plastic component. Aim was to verify the role of BPA in metabolic alterations, insulin resistance, low grade inflammation and visceral obesity. METHODS A cross-sectional study was performed in 76 out of 139 environmentally exposed adult males, unselected Caucasian subjects, enrolled by routine health survey at the "Federico II" University of Naples outpatient facilities. BPA plasma levels (ELISA), metabolic risk factors, homeostasis model assessment of insulin resistance index, plasma monocyte chemoattractant protein 1, interleukin-6 (IL-6) and tumor necrosis factor-alpha were performed. Clinical and biochemical parameters have been compared with BPA and pro-inflammatory cytokines levels. RESULTS In total 24 subjects out of 76 (32%) presented with waist circumference (WC) >102 cm, 36 (47%) had impaired fasting glucose and 24 (32%) subjects had insulin resistance [11 out 52 (21%) with WC ≤102 cm and 13 out of 24 with WC >102 cm (54%), χ(2) 6.825, p = 0.009]. BPA and pro-inflammatory cytokine levels were significantly higher in subjects with visceral adiposity (WC > 102 cm). BPA correlated with WC, triglycerides, glucose homeostasis and inflammatory markers. At the multivariate analysis WC and IL-6 remained the main predictors of BPA. CONCLUSIONS Detectable BPA plasma levels have been found also in our population. The strictly association between BPA and WC, components of MS, and inflammatory markers, further supports the BPA role in visceral obesity-related low grade chronic inflammation.
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Affiliation(s)
- Silvia Savastano
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Giovanni Tarantino
- Department of Clinical Medicine and Surgery, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
- INT "Fondazione Pascale", Cancer Research Center of Mercogliano, 83013, Mercogliano, AV, Italy.
| | - Vittoria D'Esposito
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Federica Passaretti
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Serena Cabaro
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Antonietta Liotti
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Domenico Liguoro
- Institute of Experimental Endocrinology and Oncology (IEOS), National Council of Research (CNR), "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Giuseppe Perruolo
- Institute of Experimental Endocrinology and Oncology (IEOS), National Council of Research (CNR), "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Fabiana Ariemma
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Carmine Finelli
- Center of Obesity and Eating Disorders, Stella Maris Mediterraneum Foundation, C/da S. Lucia, Chiaromonte, Potenza, Italy.
| | - Francesco Beguinot
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
- Institute of Experimental Endocrinology and Oncology (IEOS), National Council of Research (CNR), "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Pietro Formisano
- Department of Translational Medical Sciences, "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
- Institute of Experimental Endocrinology and Oncology (IEOS), National Council of Research (CNR), "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
| | - Rossella Valentino
- Institute of Experimental Endocrinology and Oncology (IEOS), National Council of Research (CNR), "Federico II" University of Naples, via Pansini, 5, 80131, Naples, Italy.
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Alonso-Magdalena P, García-Arévalo M, Quesada I, Nadal Á. Bisphenol-A treatment during pregnancy in mice: a new window of susceptibility for the development of diabetes in mothers later in life. Endocrinology 2015; 156:1659-70. [PMID: 25830705 DOI: 10.1210/en.2014-1952] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Evidence now exists supporting the hypothesis that endocrine-disrupting chemicals (EDCs) can harmfully impact glucose metabolism. Thus, EDCs are beginning to be considered important contributors to the increased incidence of diabetes, obesity, or both. The possible effect of exposure to EDCs during pregnancy on glucose homeostasis in mothers later in life is presently unknown. Here we show that several months after delivery, mothers treated with the widespread EDC bisphenol-A (BPA) during gestation, at environmentally relevant doses, exhibit profound glucose intolerance and altered insulin sensitivity as well as increased body weight. These mice presented a decreased insulin secretion both in vivo and in vitro together with reduced pancreatic β-cell mass. The proliferation capacity was decreased in association with a diminished expression of the cell cycle activators: cyclin D2 and cyclin-dependent kinase-4. In addition, the rate of β-cells apoptosis was increased as well as the expression of the cell cycle inhibitors p16 and p53. Conversely, no effects on glucose metabolism or insulin sensitivity were observed when female nonpregnant mice were treated with BPA at the same doses. Taken together, these findings reveal that BPA exposure during gestation has harmful long-term implications in glucose metabolism for the mother. This finding highlights a new window of susceptibility for EDC exposure that may be important for the development of type 2 diabetes.
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Affiliation(s)
- Paloma Alonso-Magdalena
- Departamento de Biología Aplicada (P.A.-M., I.Q.), Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) (P.A.-M., M.G.-A., I.Q., A.N.), Universidad Miguel Hernández de Elche, Elche 03202, Alicante, Spain
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Asimakopoulos AG, Thomaidis NS. Bisphenol A, 4-t-octylphenol, and 4-nonylphenol determination in serum by Hybrid Solid Phase Extraction–Precipitation Technology technique tailored to liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 986-987:85-93. [DOI: 10.1016/j.jchromb.2015.02.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 02/04/2015] [Accepted: 02/08/2015] [Indexed: 11/23/2022]
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vom Saal FS, Welshons WV. Evidence that bisphenol A (BPA) can be accurately measured without contamination in human serum and urine, and that BPA causes numerous hazards from multiple routes of exposure. Mol Cell Endocrinol 2014; 398:101-13. [PMID: 25304273 PMCID: PMC4805123 DOI: 10.1016/j.mce.2014.09.028] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 09/25/2014] [Accepted: 09/26/2014] [Indexed: 12/16/2022]
Abstract
There is extensive evidence that bisphenol A (BPA) is related to a wide range of adverse health effects based on both human and experimental animal studies. However, a number of regulatory agencies have ignored all hazard findings. Reports of high levels of unconjugated (bioactive) serum BPA in dozens of human biomonitoring studies have also been rejected based on the prediction that the findings are due to assay contamination and that virtually all ingested BPA is rapidly converted to inactive metabolites. NIH and industry-sponsored round robin studies have demonstrated that serum BPA can be accurately assayed without contamination, while the FDA lab has acknowledged uncontrolled assay contamination. In reviewing the published BPA biomonitoring data, we find that assay contamination is, in fact, well controlled in most labs, and cannot be used as the basis for discounting evidence that significant and virtually continuous exposure to BPA must be occurring from multiple sources.
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Affiliation(s)
- Frederick S vom Saal
- Division of Biological Sciences, University of Missouri, Columbia, MO 65211 USA.
| | - Wade V Welshons
- Department of Biomedical Sciences, University of Missouri, Columbia MO 65211 USA
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El-Missiry MA, Othman AI, Al-Abdan MA, El-Sayed AA. Melatonin ameliorates oxidative stress, modulates death receptor pathway proteins, and protects the rat cerebrum against bisphenol-A-induced apoptosis. J Neurol Sci 2014; 347:251-6. [DOI: 10.1016/j.jns.2014.10.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 09/30/2014] [Accepted: 10/03/2014] [Indexed: 01/28/2023]
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Maserejian N. Possible Association Between Dental Sealants and Urinary Bisphenol A Levels in Children Warrants Additional Biomonitoring and Safety Research. J Evid Based Dent Pract 2014; 14:200-2. [DOI: 10.1016/j.jebdp.2014.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Kasper-sonnenberg M, Koch HM, Wittsiepe J, Brüning T, Wilhelm M. Phthalate metabolites and bisphenol A in urines from German school-aged children: Results of the Duisburg Birth Cohort and Bochum Cohort Studies. Int J Hyg Environ Health 2014; 217:830-8. [DOI: 10.1016/j.ijheh.2014.06.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 12/26/2022]
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Fang C, Ning B, Waqar AB, Niimi M, Li S, Satoh K, Shiomi M, Ye T, Dong S, Fan J. Bisphenol A exposure enhances atherosclerosis in WHHL rabbits. PLoS One 2014; 9:e110977. [PMID: 25333893 PMCID: PMC4205098 DOI: 10.1371/journal.pone.0110977] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/18/2014] [Indexed: 11/19/2022] Open
Abstract
Bisphenol A (BPA) is an environmental endocrine disrupter. Excess exposure to BPA may increase susceptibility to many metabolic disorders, but it is unclear whether BPA exposure has any adverse effects on the development of atherosclerosis. To determine whether there are such effects, we investigated the response of Watanabe heritable hyperlipidemic (WHHL) rabbits to 400-µg/kg BPA per day, administered orally by gavage, over the course of 12 weeks and compared aortic and coronary atherosclerosis in these rabbits to the vehicle group using histological and morphometric methods. In addition, serum BPA, cytokines levels and plasma lipids as well as pathologic changes in liver, adipose and heart were analyzed. Moreover, we treated human umbilical cord vein endothelial cells (HUVECs) and rabbit aortic smooth muscle cells (SMCs) with different doses of BPA to investigate the underlying molecular mechanisms involved in BPA action(s). BPA treatment did not change the plasma lipids and body weights of the WHHL rabbits; however, the gross atherosclerotic lesion area in the aortic arch was increased by 57% compared to the vehicle group. Histological and immunohistochemical analyses revealed marked increases in advanced lesions (37%) accompanied by smooth muscle cells (60%) but no significant changes in the numbers of macrophages. With regard to coronary atherosclerosis, incidents of coronary stenosis increased by 11% and smooth muscle cells increased by 73% compared to the vehicle group. Furthermore, BPA-treated WHHL rabbits showed increased adipose accumulation and hepatic and myocardial injuries accompanied by up-regulation of endoplasmic reticulum (ER) stress and inflammatory and lipid metabolism markers in livers. Treatment with BPA also induced the expression of ER stress and inflammation related genes in cultured HUVECs. These results demonstrate for the first time that BPA exposure may increase susceptibility to atherosclerosis in WHHL rabbits.
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Affiliation(s)
- Chao Fang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People’s Republic of China
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Bo Ning
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Ahmed Bilal Waqar
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Manabu Niimi
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Shen Li
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Kaneo Satoh
- Department of Laboratory Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - Masashi Shiomi
- Institute for Experimental Animals, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ting Ye
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People’s Republic of China
| | - Sijun Dong
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People’s Republic of China
- * E-mail: (SD); (JF)
| | - Jianglin Fan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People’s Republic of China
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
- * E-mail: (SD); (JF)
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