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Chen T, Zeng Q, Cao M, Zhang L, Adyari B, Ma C, Wang K, Gao D, Hu A, Sun Q, Yu CP. Fate of contaminants of emerging concern in two wastewater treatment plants after retrofitting tertiary treatment for reduction of nitrogen discharge. ENVIRONMENTAL RESEARCH 2024; 249:118344. [PMID: 38311200 DOI: 10.1016/j.envres.2024.118344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/16/2024] [Accepted: 01/27/2024] [Indexed: 02/10/2024]
Abstract
More and more previously designed wastewater treatment plants (WWTPs) are upgraded to tertiary treatment to meet the higher effluent discharge standards of conventional pollutants. Contaminants of emerging concern (CECs) can cause adverse effects on organisms and usually flow into WWTPs along with urban sewage. How the retrofitted WWTPs targeting conventional pollutants will influence the treatment efficiency of CECs is seldom discussed. This study investigates the removal of CECs in two full-scale newly retrofitted WWTPs (CD and JM WWTPs), containing high-efficiency sedimentation tank and denitrification deep bed filter for enhancing total nitrogen removal. The overall CEC removal efficiencies in the CD and JM WWTPs were 73.79 % and 93.63 %, respectively. Mass balance results indicated that CD WWTP and JM WWTP release a total of 36.89 and 88.58 g/d of CECs into the environment through effluent and excess sludge, respectively. Analysis of the concentration of CECs along the treatment process revealed most CECs were removed in the biological treatment units. The incorporation of newly constructed tertiary treatment proved beneficial for CEC removal and removed 2.93 % and 2.36 % CECs, corresponding to CEC removal of 2.92 and 27.49 g/d in the CD and JM WWTPs, respectively. The data of this study were further used to evaluate the suitability of the SimpleTreat model for simulating the fate of CECs in WWTPs. The predicted fraction of CECs discharged through the biological treatment effluent were generally within ten-fold difference from the measured results, highlighting its potential for estimating CEC removal in WWTPs.
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Affiliation(s)
- Tianyuan Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiaoting Zeng
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Meixian Cao
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Lanping Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Bob Adyari
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Cong Ma
- Xiamen Municipal Environmental Technology Co., Ltd., Xiamen, 361001, China
| | - Kai Wang
- Xiamen Municipal Construction Biotechnology Co, Ltd., Xiamen, 361001, China
| | - Deti Gao
- Fujian Lanshen Environmental Technology Co, Ltd., Quanzhou, 362000, China
| | - Anyi Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Qian Sun
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| | - Chang-Ping Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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Kovačič A, Modic M, Hojnik N, Štampar M, Gulin MR, Nannou C, Koronaiou LA, Heath D, Walsh JL, Žegura B, Lambropoulou D, Cvelbar U, Heath E. Degradation and toxicity of bisphenol A and S during cold atmospheric pressure plasma treatment. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131478. [PMID: 37116332 DOI: 10.1016/j.jhazmat.2023.131478] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/06/2023] [Accepted: 04/22/2023] [Indexed: 05/19/2023]
Abstract
Bisphenols are widely recognised as toxic compounds that potentially threaten the environment and public health. Here we report the use of cold atmospheric pressure plasma (CAP) to remove bisphenol A (BPA) and bisphenol S (BPS) from aqueous systems. Additionally, methanol was added as a radical scavenger to simulate environmental conditions. After 480 s of plasma treatment, 15-25 % of BPA remained, compared to > 80 % of BPS, with BPA being removed faster (-kt = 3.4 ms-1, half-life = 210 s) than BPS (-kt = 0.15 ms-1, half-life 4700 s). The characterisation of plasma species showed that adding a radical scavenger affects the formation of reactive oxygen and nitrogen species, resulting in a lower amount of ˙OH, H2O2, and NO2- but a similar amount of NO3-. In addition, a non-target approach enabled the elucidation of 11 BPA and five BPS transformation products. From this data, transformation pathways were proposed for both compounds, indicating nitrification with further cleavage, demethylation, and carboxylation, and the coupling of smaller bisphenol intermediates. The toxicological characterisation of the in vitro HepG2 cell model has shown that the mixture of transformation products formed during CAP is less toxic than BPA and BPS, indicating that CAP is effective in safely degrading bisphenols.
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Affiliation(s)
- Ana Kovačič
- Department of Environmental Sciences O2, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia
| | - Martina Modic
- Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia; Laboratory for Gaseous Electronics F6, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Nataša Hojnik
- Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia; Laboratory for Gaseous Electronics F6, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Martina Štampar
- National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, 1000 Ljubljana, Slovenia
| | - Martin Rafael Gulin
- Department of Environmental Sciences O2, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Christina Nannou
- Department of Chemistry, International Hellenic University, GR 65404 Kavala, Greece
| | - Lelouda-Athanasia Koronaiou
- Laboratory of Environmental Pollution Control, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation (CIRI-AUTh), Thessaloniki GR-57001, Greece
| | - David Heath
- Department of Environmental Sciences O2, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - James L Walsh
- York Plasma Institute, University of York, YO10 5DQ, UK
| | - Bojana Žegura
- Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia; National Institute of Biology, Department of Genetic Toxicology and Cancer Biology, 1000 Ljubljana, Slovenia
| | - Dimitra Lambropoulou
- Laboratory of Environmental Pollution Control, Department of Chemistry, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece; Center for Interdisciplinary Research and Innovation (CIRI-AUTh), Thessaloniki GR-57001, Greece
| | - Uroš Cvelbar
- Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia; Laboratory for Gaseous Electronics F6, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Ester Heath
- Department of Environmental Sciences O2, Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia.
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3
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Pandit S, Singh P, Parthasarathi R. Computational risk assessment framework for the hazard analysis of bisphenols and quinone metabolites. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:128031. [PMID: 34933259 DOI: 10.1016/j.jhazmat.2021.128031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/17/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Bisphenol A (BPA) is a widely used chemical in plastics but its proven harmful effects has led to the replacement and production of its analogs that might also induce hazard as well as associated risks. To elucidate the adverse impact of the BPA analogs, a comprehensive computational framework is developed which applies toxicogenomics aligned with Density Functional Theory (DFT) and Molecular Dynamics (MD) based approaches to understand the toxic potential of quinone metabolites of Bisphenol F (BPF) and 3,3'-dimethylbisphenol A (DMBPA). The obtained results indicate a similar chemical reactivity profile for these metabolites of bisphenols to BPA metabolite. MD simulation revealed that the quinone metabolites tend to interact with the DNA comprising hydrogen bonding, van der Waals forces, and electrostatic interactions as an onset for covalent binding to adduct formation. Structural analysis suggests that interactions with DC9, DG10, DG16, DA17, DA18, and DT19 play a crucial role in stabilizing the quinone metabolite in the interactive pocket of DNA. These observations are demonstrating that BPF and DMBPA have the potential to impose genotoxicity via forming the quinone metabolite adducts. Combination of DFT and MD-based computational approaches providing a structure-activity-toxicity spectrum of chemicals can serve for the purpose of risk assessment.
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Affiliation(s)
- Shraddha Pandit
- Computational Toxicology Facility, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Prakrity Singh
- Computational Toxicology Facility, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramakrishnan Parthasarathi
- Computational Toxicology Facility, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Sarkar A, Mahendran TS, Meenakshisundaram A, Christopher RV, Dan P, Sundararajan V, Jana N, Venkatasubbu D, Sheik Mohideen S. Role of cerium oxide nanoparticles in improving oxidative stress and developmental delays in Drosophila melanogaster as an in-vivo model for bisphenol a toxicity. CHEMOSPHERE 2021; 284:131363. [PMID: 34225110 DOI: 10.1016/j.chemosphere.2021.131363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/19/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
Bisphenol A (BPA) is an endocrine-disrupting chemical used commonly in the manufacture of plastic bottles, beverage cans, consumer products, and medical devices. It has a high risk of disrupting hormone-mediated processes which are critical for the growth and development of an infant. In the present study, the flies are exposed to different concentrations of BPA (0.05 and 0.5 mM), which represented the federally regulated LOAEL (50 mg/kg bw/day) and a higher dose of 1 mM, to study the change in cell death, nuclear instability oxidative stress, and behavioral anomalies leading to complex behavioral disorders like Autism. Effects of BPA doses (0.05, 0.5, 1 mM) were studied and the flies showed deficits in social interaction, locomotion, and enhanced oxidative stress that was found to be deteriorating among the flies. Automated tracking and robust MATLAB analysis of behavioral paradigms like position, movement, velocity, and courtship have given us an insight into a detrimental change in development and behavior when exposed to BPA. The flies were also co-treated with Cerium Oxide nanoparticles (CeO2 NP), well known for its antioxidant properties due to their antioxidant enzyme biomimetic nature, resulted in low oxidative stress, genotoxicity, and an improvement in behavior. In this work, we have tested our hypothesis of oxidative stress and nuclear instability as a potent cause for improper development in Drosophila when exposed to EDCs like BPA which is a potential hazard for both health and environment and might lead to various developmental disorders in children.
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Affiliation(s)
- Arkajyoti Sarkar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Tharun Selvam Mahendran
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Aasha Meenakshisundaram
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Rushenka Vashti Christopher
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Pallavi Dan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Vignesh Sundararajan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Nishant Jana
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Devanand Venkatasubbu
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Sahabudeen Sheik Mohideen
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
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5
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Peng X, Chen L, Zhou JP. Identification of Carcinogenic Chemicals with Network Embedding and Deep Learning Methods. Curr Bioinform 2021. [DOI: 10.2174/1574893615999200414084317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Background:
Cancer is the second leading cause of human death in the world. To date,
many factors have been confirmed to be the cause of cancer. Among them, carcinogenic chemicals
have been widely accepted as the important ones. Traditional methods for detecting carcinogenic
chemicals are of low efficiency and high cost.
Objective:
The aim of this study was to design an efficient computational method for the
identification of carcinogenic chemicals.
Methods:
A new computational model was proposed for detecting carcinogenic chemicals. As a
data-driven model, carcinogenic and non-carcinogenic chemicals were obtained from Carcinogenic
Potency Database (CPDB). These chemicals were represented by features extracted from five
chemical networks, representing five types of chemical associations, via a network embedding
method, Mashup. Obtained features were fed into a powerful deep learning method, recurrent
neural network, to build the model.
Results:
The jackknife test on such model provided the F-measure of 0.971 and AUROC of 0.971.
Conclusion:
The proposed model was quite effective and was superior to the models with
traditional machine learning algorithms, classic chemical encoding schemes or direct usage of
chemical associations.
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Affiliation(s)
- Xuefei Peng
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China
| | - Jian-Peng Zhou
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China
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6
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Keshavarz F. Molecular level insights into the direct health impacts of some organic aerosol components. NEW J CHEM 2021. [DOI: 10.1039/d1nj00231g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Quantum chemistry and biomodeling indicate that the studied organic aerosol components cannot directly cause oxidative stress or mutagenicity/carcinogenicity.
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Affiliation(s)
- Fatemeh Keshavarz
- Institute for Atmospheric and Earth System Research
- Faculty of Science
- University of Helsinki
- FI-00014 Helsinki
- Finland
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7
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Rekik N, Alsaif NAM, Flakus HT, Farooq U, Chand R. A unified quantum model susceptible to elucidate the dissimilarity of IR spectral density of dicarboxylic acid crystals: Phthalic and terephthalic acid crystals cases. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118728. [PMID: 32781405 DOI: 10.1016/j.saa.2020.118728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/29/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Over the last decades, several approaches have been developed for elucidating the infrared spectral density of dicarboxylic acid crystals, which has been served as prototype for determining hydrogen bonds dynamics. These approaches differ in how accurately the simulated spectra can superimpose the experimental ones. In this study, we present a superdimer quantum approach susceptible to elucidate the infrared spectral properties of some particular dicarboxylic acid crystals using a newly proposed algorithm, which favors the rule of Davydov coupling in the generation of the spectra. The approach, which is herein effectively applied to terephthalic and phthalic acid dimer crystals, ascribes the non-conventional IR spectral properties of these particular acid crystals to the existence of superdimer structure in their lattices. In this superdimer structure, a strong vibronic coupling mechanism, namely Davydov coupling, takes place between the proton stretching vibrations in the (COOH)₂ cycles. This strong coupling exciton, generated by the resonance arising in the two coupled (COOH)₂ cycles of the aromatic rings of the superdimer, in conjunction with the strong anharmonic coupling between the fast and slow modes of each hydrogen bonds provide a strong support basis for a common explanation of the physical properties of these two different crystalline systems. The numerical simulations, involving the implications of the superdimer model, are systematically correlated with the experimental spectra. A decent agreement between the evaluated spectra and the experimental bandshapes of terephthalic and phthalic dicarboxylic acid crystals was obtained using a set of physically sound parameters as inputs in the theoretical formulation. The superdimer quantum approach thereby underscore the potential of the dynamical cooperative interactions between "Davydov coupling" and "strong anharmonic coupling" mechanisms in the generation of the spectral features of terephthalic and phthalic dicarboxylic acid crystals, suggesting that the congregated effects of these two mechanisms can be considered as the most reliable source of the non-conventional IR spectral properties observed. It is therefore expected that this novel algorithm reduces the discrepancies between the simulated spectra compared to the experimental one and simplify the computation of spectra in more complex hydrogen bonded systems.
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Affiliation(s)
- Najeh Rekik
- Physics Department, College of Science, University of Ha'il, Saudi Arabia; Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.
| | - Norah A M Alsaif
- Physics Department, Faculty of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Henryk T Flakus
- Institute of Chemistry, University of Silesia, Katowice 40-006, Poland
| | - Umer Farooq
- Physics Department, College of Science, University of Ha'il, Saudi Arabia
| | - Ram Chand
- Physics Department, College of Science, University of Ha'il, Saudi Arabia
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Plastics in Cyanobacterial Blooms-Genotoxic Effects of Binary Mixtures of Cylindrospermopsin and Bisphenols in HepG2 Cells. Toxins (Basel) 2020; 12:toxins12040219. [PMID: 32244372 PMCID: PMC7232240 DOI: 10.3390/toxins12040219] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 12/28/2022] Open
Abstract
Ever-expanding environmental pollution is causing a rise in cyanobacterial blooms and the accumulation of plastics in water bodies. Consequently, exposure to mixtures of cyanotoxins and plastic-related contaminants such as bisphenols (BPs) is of increasing concern. The present study describes genotoxic effects induced by co-exposure to one of the emerging cyanotoxins-cylindrospermopsin (CYN)-(0.5 µg/mL) and BPs (bisphenol A (BPA), S (BPS), and F (BPF); (10 µg/mL)) in HepG2 cells after 24 and 72 h of exposure. The cytotoxicity was evaluated with an MTS assay and genotoxicity was assessed through the measurement of the induction of DNA double strand breaks (DSB) with the γH2AX assay. The deregulation of selected genes (xenobiotic metabolic enzyme genes, DNA damage, and oxidative response genes) was assessed using qPCR. The results showed a moderate reduction of cell viability and induction of DSBs after 72 h of exposure to the CYN/BPs mixtures and CYN alone. None of the BPs alone reduced cell viability or induced DSBs. No significant difference was observed between CYN and CYN/BPs exposed cells, except with CYN/BPA, where the antagonistic activity of BPA against CYN was indicated. The deregulation of some of the tested genes (CYP1A1, CDKN1A, GADD45A, and GCLC) was more pronounced after exposure to the CYN/BPs mixtures compared to single compounds, suggesting additive or synergistic action. The present study confirms the importance of co-exposure studies, as our results show pollutant mixtures to induce effects different from those confirmed for single compounds.
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Li Y, Zhang H, Rashid A, Hu A, Xin K, Li H, Adyari B, Wang Y, Yu CP, Sun Q. Bisphenol A attenuation in natural microcosm: Contribution of ecological components and identification of transformation pathways through stable isotope tracing. JOURNAL OF HAZARDOUS MATERIALS 2020; 385:121584. [PMID: 31761650 DOI: 10.1016/j.jhazmat.2019.121584] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/18/2019] [Accepted: 10/31/2019] [Indexed: 06/10/2023]
Abstract
Residues of bisphenol A (BPA) are ubiquitously detected in the surface water due to its widespread usage. This study systematically investigated the dissipation and kinetics of BPA under simulated hydrolysis, direct and indirect photolysis, bacterial degradation, microbial degradation and natural attenuation in microcosm. Structural equation modeling (SEM) by using partial least square method in path coefficient analysis suggested that the microbial degradation was the major factor involved in the natural attenuation of BPA. The potential transformation products were identified by using liquid chromatography high-resolution mass spectrometry (LC-HRMS) and stable isotope tracing technique by simultaneous performing gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS) and gas chromatography mass spectrometry (GC-MS). A total of fourteen including three novel transformation products of BPA were identified to indicate five possible pathways. An increased yield of labeled (δ13C) CO2 and detection of 13C-labeled phospholipid fatty acids (PLFAs) indicated the mineralization of BPA and possible utilization of BPA or its transformation products by microbes for cellular membrane synthesis, respectively.
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Affiliation(s)
- Yan Li
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Han Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Azhar Rashid
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China; Nuclear Institute for Food and Agriculture, Tarnab, Peshawar 25000, Pakistan
| | - Anyi Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Kuikui Xin
- College of Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China
| | - Haoran Li
- College of Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China
| | - Bob Adyari
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuwen Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chang-Ping Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China; Graduate Institute of Environmental Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Qian Sun
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China.
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11
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Hercog K, Maisanaba S, Filipič M, Sollner-Dolenc M, Kač L, Žegura B. Genotoxic activity of bisphenol A and its analogues bisphenol S, bisphenol F and bisphenol AF and their mixtures in human hepatocellular carcinoma (HepG2) cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 687:267-276. [PMID: 31207516 DOI: 10.1016/j.scitotenv.2019.05.486] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/24/2019] [Accepted: 05/31/2019] [Indexed: 05/25/2023]
Abstract
The use of bisphenol A (BPA) in manufacturing of plastics is being gradually replaced by presumably safer analogues such as bisphenol S (BPS), bisphenol F (BPF) and bisphenol AF (BPAF). Despite their widespread occurrence in the environment, there is a knowledge gap in their toxicological profiles. We investigated cytotoxic/genotoxic effects as well as changes in the expression of selected genes involved in the xenobiotic metabolism, response to oxidative stress and DNA damage upon exposure to BPs and their mixtures in human hepatocellular carcinoma HepG2 cells. BPS and BPF slightly decreased the viability of HepG2 cells, while BPAF was the most cytotoxic compound tested. BPA, BPF and BPAF induced the formation of DNA double strand breaks determined with γH2AX assay, while BPS was inactive (5-20 μg/mL). All four BPs up-regulated the expression of CYP1A1 and UGT1A1, while BPS up-regulated and BPAF down-regulated also the expression of GST1A. Only BPA up-regulated oxidative stress responsive gene GCLC, while BPAF up-regulated the expression of CDKN1A and GADD45a. At concentrations relevant for human exposure (ng/mL range) BPA and its analogues as individual compounds and in mixtures did not exert genotoxic activity, whereas BPA and BPAF as well as the mixtures up-regulated the expressions of CYP1A1 and UGT1A1.
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Affiliation(s)
- Klara Hercog
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Sara Maisanaba
- Area of Toxicology, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Sevilla, Spain; Area of Toxicology, Department of Molecular Biology and Biochemistry Engineering, University Pablo de Olavide, Sevilla, Spain
| | - Metka Filipič
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | | | - Lidija Kač
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia; Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Bojana Žegura
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia.
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Dallio M, Diano N, Masarone M, Gravina AG, Patanè V, Romeo M, Di Sarno R, Errico S, Nicolucci C, Abenavoli L, Scarpellini E, Boccuto L, Persico M, Loguercio C, Federico A. Chemical Effect of Bisphenol A on Non-Alcoholic Fatty Liver Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16173134. [PMID: 31466361 PMCID: PMC6747307 DOI: 10.3390/ijerph16173134] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/18/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is considered a predominant chronic liver disease worldwide and a component of metabolic syndrome. Due to its relationship with multiple organs, it is extremely complex to precisely define its pathogenesis as well as to set appropriate therapeutic and preventive strategies. Endocrine disruptors (EDCs) in general, and bisphenol A (BPA) in particular, are a heterogeneous group of substances, largely distributed in daily use items, able to interfere with the normal signaling of several hormones that seem to be related to type 2 diabetes mellitus (T2DM), obesity, and other metabolic disorders. It is reasonable to hypothesize a BPA involvement in the pathogenesis and evolution of NAFLD. However, its mechanisms of action as well as its burden in the vicious circle that connects obesity, T2DM, metabolic syndrome, and NAFLD still remain to be completely defined. In this review we analyzed the scientific evidence on this promising research area, in order to provide an overview of the harmful effects linked to the exposure to EDCs as well as to frame the role that BPA would have in all phases of NAFLD evolution.
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Affiliation(s)
- Marcello Dallio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy.
| | - Nadia Diano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Mario Masarone
- Department of Medicine and Surgery, University of Salerno, via Salvador Allende, 84081 Salerno, Italy
| | - Antonietta Gerarda Gravina
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Vittorio Patanè
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Mario Romeo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Rosa Di Sarno
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Sonia Errico
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Carla Nicolucci
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Ludovico Abenavoli
- Department of Health Sciences, University "Magna Graecia", Viale Europa-Germaneto, 88110 Catanzaro, Italy
| | - Emidio Scarpellini
- Division of Gastroenterology, Department of Internal Medicine, TARGID, University Hospital Gasthuisberg, 3000 Leuven, Belgium
| | - Luigi Boccuto
- Greenwood Genetic Center, 113 Gregor Mendel Circle, Greenwood, SC 29646, USA
| | - Marcello Persico
- Department of Medicine and Surgery, University of Salerno, via Salvador Allende, 84081 Salerno, Italy
| | - Carmelina Loguercio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
| | - Alessandro Federico
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", via Pansini 5, 80131 Naples, Italy
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Melnikov F, Botta D, White CC, Schmuck SC, Winfough M, Schaupp CM, Gallagher EP, Brooks BW, Williams ES, Coish P, Anastas PT, Voutchkova-Kostal A, Kostal J, Kavanagh TJ. Kinetics of Glutathione Depletion and Antioxidant Gene Expression as Indicators of Chemical Modes of Action Assessed in Vitro in Mouse Hepatocytes with Enhanced Glutathione Synthesis. Chem Res Toxicol 2019; 32:421-436. [PMID: 30547568 DOI: 10.1021/acs.chemrestox.8b00259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Here we report a vertically integrated in vitro - in silico study that aims to elucidate the molecular initiating events involved in the induction of oxidative stress (OS) by seven diverse chemicals (cumene hydroperoxide, t-butyl hydroperoxide, hydroquinone, t-butyl hydroquinone, bisphenol A, Dinoseb, and perfluorooctanoic acid). To that end, we probe the relationship between chemical properties, cell viability, glutathione (GSH) depletion, and antioxidant gene expression. Concentration-dependent effects on cell viability were assessed by MTT assay in two Hepa-1 derived mouse liver cell lines: a control plasmid vector transfected cell line (Hepa-V), and a cell line with increased glutamate-cysteine ligase (GCL) activity and GSH content (CR17). Changes to intracellular GSH content and mRNA expression levels for the Nrf2-driven antioxidant genes Gclc, Gclm, heme oxygenase-1 ( Hmox1), and NADPH quinone oxidoreductase-1 ( Nqo1) were monitored after sublethal exposure to the chemicals. In silico models of covalent and redox reactivity were used to rationalize differences in activity of quinones and peroxides. Our findings show CR17 cells were generally more resistant to chemical toxicity and showed markedly attenuated induction of OS biomarkers; however, differences in viability effects between the two cell lines were not the same for all chemicals. The results highlight the vital role of GSH in protecting against oxidative stress-inducing chemicals as well as the importance of probing molecular initiating events in order to identify chemicals with lower potential to cause oxidative stress.
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Affiliation(s)
- Fjodor Melnikov
- Yale School of Forestry and Environmental Sciences , Yale University , New Haven , Connecticut 06520 , United States
| | - Dianne Botta
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
| | - Collin C White
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
| | - Stefanie C Schmuck
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
| | - Matthew Winfough
- Department of Chemistry , George Washington University , Washington , D.C. 20052 , United States
| | - Christopher M Schaupp
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
| | - Evan P Gallagher
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
| | - Bryan W Brooks
- Department of Environmental Science , Baylor University , Waco , Texas 76798 , United States
| | - Edward Spencer Williams
- Department of Environmental Science , Baylor University , Waco , Texas 76798 , United States
| | - Philip Coish
- Yale School of Forestry and Environmental Sciences , Yale University , New Haven , Connecticut 06520 , United States
| | - Paul T Anastas
- Yale School of Forestry and Environmental Sciences , Yale University , New Haven , Connecticut 06520 , United States.,School of Public Health , Yale University , New Haven , Connecticut 06520 , United States
| | | | - Jakub Kostal
- Department of Chemistry , George Washington University , Washington , D.C. 20052 , United States
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98195 , United States
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Pahigian JM, Zuo Y. Occurrence, endocrine-related bioeffects and fate of bisphenol A chemical degradation intermediates and impurities: A review. CHEMOSPHERE 2018; 207:469-480. [PMID: 29807346 DOI: 10.1016/j.chemosphere.2018.05.117] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 05/16/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
In recent decades, increasing attention has been directed toward the effects of bisphenol A (BPA) as an environmental pollutant, primarily due to its demonstrated endocrine-disruptive effects. A growing body of evidence indicates that many BPA derivatives also exhibit endocrine activity and other adverse biological properties. A review of the published literature was performed to identify BPA degradation intermediates resulting from chemical degradation processes of BPA, as well as BPA's associated co-pollutants. Products of biological metabolism were not included in this study. Seventy-nine chemicals were identified. Of these chemicals, a subset - those containing two 6-membered aromatic rings connected by a central ring-linking carbon - was identified, and a further literature review was conducted to identify demonstrated biological effects associated with the chemicals in this subset. The objectives of this review were to assess the potential risks to human and environmental health associated with BPA derivatives, characterize our current understanding of BPA's degradation intermediates and co-pollutants, and aid in the identification of compounds of interest that have received insufficient scrutiny.
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Affiliation(s)
- Jamie M Pahigian
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth and University of Massachusetts Graduate School of Marine Sciences and Technology, 285 Old Westport Road, North Dartmouth, MA 02747, USA
| | - Yuegang Zuo
- Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth and University of Massachusetts Graduate School of Marine Sciences and Technology, 285 Old Westport Road, North Dartmouth, MA 02747, USA.
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Thoene M, Rytel L, Nowicka N, Wojtkiewicz J. The state of bisphenol research in the lesser developed countries of the EU: a mini-review. Toxicol Res (Camb) 2018; 7:371-380. [PMID: 30090587 PMCID: PMC6062254 DOI: 10.1039/c8tx00064f] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 04/17/2018] [Indexed: 01/01/2023] Open
Abstract
Bisphenol compounds are a class of chemical epoxy resins that are found throughout the world in food packaging, thermal paper products, dental materials, and more. These compounds were deemed to be safe until recently, when some studies noticed adverse effects at very low doses, due to the fact that bisphenol acts as an endocrine disruptor. Over the last ten years, studies have been performed to detect bisphenols (especially BPA) in serum and blood samples throughout the world. Essentially, the majority of the earth's population seems to have significantly measurable levels of bisphenol in their blood plasma or urine. However, the majority of the population is unaware that a potential danger may exist. The purpose of this mini-review is to report upon the state of bisphenol research in the lesser developed member-states of the European Union and to increase awareness of the exposure level and possible adverse health effects of this endocrine disruptor. The results show that only three of the most newly admitted members of the European Union have published research concerning the health effects and/or environmental exposure of EU citizens to bisphenol compounds. Those countries were Slovenia, Poland and the Czech Republic. The rest of the surveyed member-states had little or no published research in relation to bisphenol compounds. Furthermore, even the three nations referred to above still lagged far behind the more advanced EU member-states. The lack of research could translate into a lack of awareness amongst the citizenry of nearly half of the EU, and may be unnecessarily putting those EU citizens at an increased risk of exposure.
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Affiliation(s)
- Michael Thoene
- Department of Medical Biology , Faculty of Health Sciences , University of Warmia and Mazury in Olsztyn , Żołnierska 14C str. , 10-561 Olsztyn , Poland . ; Tel: +(89) 524 61 16
| | - Liliana Rytel
- Department of Internal Medicine and Clinic , Faculty of Veterinary Medicine , University of Warmia and Mazury , OczapowskiegoStr 15 , 10-718 , Olsztyn , Poland .
| | - Natalia Nowicka
- Department of Pathophysiology , Faculty of Medical Sciences , University of Warmia and Mazury , Olsztyn , Poland . ;
| | - Joanna Wojtkiewicz
- Department of Pathophysiology , Faculty of Medical Sciences , University of Warmia and Mazury , Olsztyn , Poland . ;
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16
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Zhao H, Wei J, Xiang L, Cai Z. Mass spectrometry investigation of DNA adduct formation from bisphenol A quinone metabolite and MCF-7 cell DNA. Talanta 2018; 182:583-589. [PMID: 29501196 DOI: 10.1016/j.talanta.2018.02.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 10/18/2022]
Abstract
Bisphenol A (BPA) is a widely used additive in the plastic industry and has been reported to have genotoxicity. A hypothesis that BPA may enhance breast cancer risk through the formation of its metabolic intermediate or DNA adduct has been proposed. In this study, breast cancer cell MCF-7 was cultured and the cellular DNA was extracted from the cells. The adducts of bisphenol A 3,4-quinone (BPAQ) with 2'-deoxyguanosine (dG), calf thymus DNA and MCF-7 cell DNA were investigated. DNA adducts were characterized by using electrospray ionization Orbitrap high-resolution mass spectrometry and tandem mass spectrometry. The BPA-DNA adducts of BPAQ with dG, calf thymus and MCF-7 cell DNA were identified as 3-hydroxy-bisphenol A-N7-guanine (3-OH-BPA-N7Gua). The MS/MS fragmentation pathway of 3-OH-BPA-N7Gua was proposed based on obtained accurate mass data. BPA quinone metabolites can react with MCF-7 cell DNA in vitro. The findings provide evidence that BPA might covalently bind to DNA in MCF-7 cells mediated by quinone metabolites, which may increase our understanding of health risk associated with BPA exposure.
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Affiliation(s)
- Hongzhi Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR China
| | - Juntong Wei
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR China
| | - Li Xiang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, PR China.
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17
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Bisphenol A Causes Liver Damage and Selectively Alters the Neurochemical Coding of Intrahepatic Parasympathetic Nerves in Juvenile Porcine Models under Physiological Conditions. Int J Mol Sci 2017; 18:ijms18122726. [PMID: 29244763 PMCID: PMC5751327 DOI: 10.3390/ijms18122726] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/02/2017] [Accepted: 12/12/2017] [Indexed: 12/27/2022] Open
Abstract
Bisphenol A (BPA) is an extremely common polymer that is used in typical everyday products throughout the world, especially in food and beverage containers. Within the last ten years, it has been found that the BPA monomer tends to leach into foodstuffs, and nanogram concentrations of it may cause a variety of deleterious health effects. These health problems are very evident in developing children and in young adults. The aim of this study was to expose developing pigs to dietary BPA at both legally acceptable and ten-fold higher levels. Livers that had been exposed to BPA showed vacuolar degeneration, sinusoidal dilatation, vascular congestion and glycogen depletion that increased with exposure levels. Furthermore, the livers of these models were then examined for irregularities and double-labeled immunofluorescence was used to check the innervated hepatic samples for varying neuronal expression of selected neuronal markers in the parasympathetic nervous system (PSNS). It was found that both the PSNS and all of the neuronal markers showed increased expression, with some of them being significant even at recommended safe exposure levels. The implications are quite serious since these effects have been observed at recommended safe levels with expression increasing in-line with exposure levels. The increased neuronal markers studied here have been previously correlated with behavioral/psychological disorders of children and young adults, as well as with childhood obesity and diabetes. However, further research must be performed in order to develop a mechanism for the above-mentioned correlations.
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18
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Moustafa GG, Ahmed AA. Impact of prenatal and postnatal exposure to bisphenol A on female rats in a two generational study: Genotoxic and immunohistochemical implications. Toxicol Rep 2016; 3:685-695. [PMID: 28959593 PMCID: PMC5616084 DOI: 10.1016/j.toxrep.2016.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 08/08/2016] [Accepted: 08/26/2016] [Indexed: 01/01/2023] Open
Abstract
Environmental xenoestrogen contaminant bisphenol A (BPA), widely used as a monomer in the manufacture of epoxy, polycarbonate plastics and polystyrene resins. However, exposure to BPA has raised concerns, and the negative impacts of its exposure on reproduction have been controversial. The purpose of this work was directed to assess the potential adverse effects of BPA on dam rats and their first generation females in a comparative toxicological study. Fifteen pregnant female rats were classified into three equal groups; first group was orally administered corn oil and served as control (group1), second and third groups were orally administered BPA at dose levels of 50 and 200 mg/kg b.wt respectively (groups 2 & 3). The administration was carried out daily from zero day through the gestation period (21 days) until the last day of the lactation period (21days) and was extended after weaning for three months, in which female off springs of first generation (F1) of the three groups of dams were classified into; F1control group (group 4), F1 group treated with low dose of BPA (group 5) and F1 group treated with high dose of BPA (group 6) which continued in daily oral administration of BPA at the same previously mentioned doses for three months. The results elucidated a clear marked DNA fragmentation in the ovary of both dam and F1 female groups especially at higher examined concentration. Also, the data demonstrated a significant increase in the serum levels of GGT, ALP, glucose, total cholesterol, triglycerides, LDH and also in the serum level of estrogen hormone. Meanwhile, our study recorded a significant decrease in total protein, catalase, GST, HDL and FSH hormone in both treated dam and F1 female groups which was more significantly decreased in F1 female rats. Moreover, our experiment illustrated up-regulation in the immunoexpression of ERβ in ovary, uterus and liver of dam and F1 female groups. The histopathological investigation showed degeneration in the epithelial lining of ovarian follicles, submucosal leukocytic infiltration and increase in vaculation of hepatic cells with proliferation of kupffer cells. The lesions were more sever in groups 3 & 6 of both dam and their F1 females. Our data speculated that long- term exposure to BPA at 50 and 200 mg/kg.b.wt. depicted total genomic damage, significant alterations in liver enzymes, lipid profile, antioxidant enzymes and reproductive hormones with up-regulation in the expression of ERβ which were more significantly perturbed in group 3 and group 6 of both dam and F1 female rats.
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Affiliation(s)
- Gihan G. Moustafa
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - Amal A.M. Ahmed
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Suez canal University, Egypt
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19
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Wang YQ, Zhang HM. Exploration of binding of bisphenol A and its analogues with calf thymus DNA by optical spectroscopic and molecular docking methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 149:9-20. [DOI: 10.1016/j.jphotobiol.2015.04.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 03/17/2015] [Accepted: 04/20/2015] [Indexed: 01/18/2023]
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20
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Chen L, Chu C, Lu J, Kong X, Huang T, Cai YD. A computational method for the identification of new candidate carcinogenic and non-carcinogenic chemicals. MOLECULAR BIOSYSTEMS 2015; 11:2541-50. [PMID: 26194467 DOI: 10.1039/c5mb00276a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cancer is one of the leading causes of human death. Based on current knowledge, one of the causes of cancer is exposure to toxic chemical compounds, including radioactive compounds, dioxin, and arsenic. The identification of new carcinogenic chemicals may warn us of potential danger and help to identify new ways to prevent cancer. In this study, a computational method was proposed to identify potential carcinogenic chemicals, as well as non-carcinogenic chemicals. According to the current validated carcinogenic and non-carcinogenic chemicals from the CPDB (Carcinogenic Potency Database), the candidate chemicals were searched in a weighted chemical network constructed according to chemical-chemical interactions. Then, the obtained candidate chemicals were further selected by a randomization test and information on chemical interactions and structures. The analyses identified several candidate carcinogenic chemicals, while those candidates identified as non-carcinogenic were supported by a literature search. In addition, several candidate carcinogenic/non-carcinogenic chemicals exhibit structural dissimilarity with validated carcinogenic/non-carcinogenic chemicals.
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Affiliation(s)
- Lei Chen
- College of Information Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China.
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21
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Lajovic A, Nagy LD, Guengerich FP, Bren U. Carcinogenesis of urethane: simulation versus experiment. Chem Res Toxicol 2015; 28:691-701. [PMID: 25642734 DOI: 10.1021/tx500459t] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The carcinogenesis of urethane (ethyl carbamate), a byproduct of fermentation that is consistently found in various food products, was investigated with a combination of kinetic experiments and quantum chemical calculations. The main objective of the study was to find ΔG(⧧), the activation free energy for the rate-limiting step of the SN2 reaction among the ultimate carcinogen of urethane, vinyl carbamate epoxide (VCE), and different nucleobases of the DNA. In the experimental part, the second-order reaction rate constants for the formation of the main 7-(2-oxoethyl)guanine adduct in aqueous solutions of deoxyguanosine and in DNA were determined. A series of ab initio, density functional theory (DFT), and semiempirical molecular orbital (MO) calculations was then performed to determine the activation barriers for the reaction between VCE and nucleobases methylguanine, methyladenine, and methylcytosine. Effects of hydration were incorporated with the use of the solvent reaction field method of Tomasi and co-workers and the Langevine dipoles model of Florian and Warshel. The computational results for the main adduct were found to be in good agreement with the experiment, thus presenting strong evidence for the validity of the proposed SN2 mechanism. This allowed us to predict the activation barriers of reactions leading to side products for which kinetic experiments have not yet been performed. Our calculations have shown that the main 7-(2-oxoethyl)deoxyguanosine adduct indeed forms preferentially because the emergence of other adducts either proceeds across a significantly higher activation barrier or the geometry of the reaction requires the Watson-Crick pairs of the DNA to be broken. The computational study also considered the questions of stereoselectivity, the ease of the elimination of the leaving group, and the relative contributions of the two possible reaction paths for the formation of the 1,N(2)-ethenodeoxyguanosine adduct.
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Affiliation(s)
- Andrej Lajovic
- †Laboratory for Molecular Modeling, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia
| | - Leslie D Nagy
- ‡Department of Biochemistry and Center in Molecular Toxicology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146, United States
| | - F Peter Guengerich
- ‡Department of Biochemistry and Center in Molecular Toxicology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146, United States
| | - Urban Bren
- †Laboratory for Molecular Modeling, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia.,§Laboratory for Physical Chemistry and Chemical Thermodynamics, Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia
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22
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Manzetti S, van der Spoel ER, van der Spoel D. Chemical Properties, Environmental Fate, and Degradation of Seven Classes of Pollutants. Chem Res Toxicol 2014; 27:713-37. [DOI: 10.1021/tx500014w] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Sergio Manzetti
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
- Fjordforsk A.S., Midtun, 6894 Vangsnes, Norway
| | - E. Roos van der Spoel
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
| | - David van der Spoel
- Uppsala
Center for Computational Chemistry, Science for Life Laboratory, Department
of Cell and Molecular Biology, University of Uppsala, Box 596, SE-75124 Uppsala, Sweden
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23
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Michałowicz J. Bisphenol A--sources, toxicity and biotransformation. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:738-58. [PMID: 24632011 DOI: 10.1016/j.etap.2014.02.003] [Citation(s) in RCA: 585] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 01/27/2014] [Accepted: 02/01/2014] [Indexed: 05/20/2023]
Abstract
Bisphenol A (BPA) is a chemical compound used in massive amounts in the production of synthetic polymers and thermal paper. In this review, the sources of BPA, which influence its occurrence in the environment and human surrounding will be presented. Data concerning BPA occurrence in food, water and indoor environments as well as its appearance in tissues and body fluids of human body will be shown. The results of in vitro and in vivo studies and the results of epidemiological surveys showing toxic, endocrine, mutagenic and cancerogenic action of BPA will also be discussed. Moreover, data suggesting that exposure of human to BPA may elevate risk of obesity, diabetes and coronary heart diseases will be presented. Finally, biotransformation of BPA in animals, plants and microorganisms (bacteria, fungi, algae), resulting in the formation of various metabolites that exhibit different from BPA toxicity will be described.
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Affiliation(s)
- Jaromir Michałowicz
- Department of Environmental Pollution Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143St., 90-236 Łódź, Poland.
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24
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Šutiaková I, Kovalkovičová N, Šutiak V. Micronucleus assay in bovine lymphocytes after exposure to bisphenol A in vitro. In Vitro Cell Dev Biol Anim 2014; 50:502-6. [DOI: 10.1007/s11626-013-9727-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 12/20/2013] [Indexed: 12/16/2022]
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25
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Alizadeh A, Khodaei MM, Fakhari M, Shamsuddin M. Direct electrosynthesis of a series of novel caffeic acid analogues through a clean and serendipitous domino oxidation/thia-Michael reaction. RSC Adv 2014. [DOI: 10.1039/c4ra02046d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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26
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Lee S, Liu X, Takeda S, Choi K. Genotoxic potentials and related mechanisms of bisphenol A and other bisphenol compounds: a comparison study employing chicken DT40 cells. CHEMOSPHERE 2013; 93:434-440. [PMID: 23791112 DOI: 10.1016/j.chemosphere.2013.05.029] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 04/30/2013] [Accepted: 05/05/2013] [Indexed: 06/02/2023]
Abstract
Bisphenol A (BPA) has been found in plastic food containers, paper currencies and toys. BPA has been reported for various adverse health concerns including reproduction, development and carcinogenesis. These potential health implications have led to increasing use of alternative bisphenols such as bisphenol F and bisphenol S among many. However, little is known about the toxicity of alternative bisphenols and most of the toxicological information is limited to endocrine disrupting potentials. In this study, we evaluated cytotoxicity and the genotoxic potentials of several bisphenol compounds, and identified the mechanism of genotoxicity using a panel of mutant chicken DT40 cell lines deficient in DNA repair pathways. Several bisphenols including bisphenol AP, bisphenol M, or bisphenol P exerted genotoxic potentials that are greater than that of BPA. Generally RAD54(-/-) mutant cells were the most sensitive to all bisphenols except for bisphenol F, suggesting the induction of DNA double-strand breaks that could be rescued by homologous recombination. Genotoxic potential of bisphenols was confirmed by chromosomal aberration assay and γ-H2AX foci forming assay between wild-type and RAD54(-/-) mutant. Among the tested bisphenols, BPP at 12.5μM showed the greatest genotoxic potency, inducing chromosomal aberration and γ-H2AX foci in RAD54(-/-) mutant by 2.6 and 4.8 folds greater than those in wild-type, respectively. Our results clearly show several alternative bisphenols can cause genotoxicity that could be rescued by homologous recombination pathway, and some bisphenols induced even greater genotoxic potentials than that of BPA.
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Affiliation(s)
- Sangwoo Lee
- School of Public Health, Seoul National University, Seoul 151-742, Republic of Korea
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Wu HJ, Liu C, Duan WX, Xu SC, He MD, Chen CH, Wang Y, Zhou Z, Yu ZP, Zhang L, Chen Y. Melatonin ameliorates bisphenol A-induced DNA damage in the germ cells of adult male rats. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2013; 752:57-67. [DOI: 10.1016/j.mrgentox.2013.01.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 01/11/2013] [Accepted: 01/31/2013] [Indexed: 10/27/2022]
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Can the chemical reactivity of an ultimate carcinogen be related to its carcinogenicity? An application to propylene oxide. Toxicol In Vitro 2013; 27:479-85. [DOI: 10.1016/j.tiv.2012.07.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Revised: 06/27/2012] [Accepted: 07/30/2012] [Indexed: 11/21/2022]
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Kolšek K, Sollner Dolenc M, Mavri J. Computational Study of the Reactivity of Bisphenol A-3,4-quinone with Deoxyadenosine and Glutathione. Chem Res Toxicol 2012. [DOI: 10.1021/tx300411d] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Katra Kolšek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7,
1000 Ljubljana, Slovenia
| | | | - Janez Mavri
- Laboratory for Biocomputing
and Bioinformatics, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
- EN-FIST Centre of Excellence, Dunajska 156, 1000, Ljubljana, Slovenia
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