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Chitakwa N, Alqudaimi M, Sultan M, Wu D. Plastic-related endocrine disrupting chemicals significantly related to the increased risk of estrogen-dependent diseases in women. Environ Res 2024; 252:118966. [PMID: 38640992 DOI: 10.1016/j.envres.2024.118966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/08/2024] [Accepted: 04/16/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVE To evaluate the association between exposure to plastic-related endocrine-disrupting chemicals (EDCs), specifically Bisphenol A (BPA), Phthalates, Cadmium, and Lead, and the risk of estrogen-dependent diseases (EDDs) such as polycystic ovary syndrome (PCOS), endometriosis, or endometrial cancer by conducting a meta-analysis of relevant studies. METHODS PubMed, Web of Science, and Cochrane Library databases were used for literature retrieval of articles published until the 21st of April 2023. Literature that evaluated the association between BPA, phthalates, cadmium, and/or lead exposure and the risk of PCOS, endometriosis, or endometrial cancer development or exacerbation were included in our analysis. STATA/MP 17.0 was used for all statistical analyses. RESULTS Overall, 22 articles were included in our meta-analysis with a total of 83,641 subjects all of whom were females aged between 18 and 83 years old. The overall effect size of each study was as follows: endometriosis risk in relation to BPA exposure ES 1.82 (95% CI; 1.50, 2.20). BPA and PCOS risk ES 1.61 (95% CI; 1.39, 1.85). Phthalate metabolites and endometriosis risk; MBP ES 1.07 (95% CI; 0.86, 1.33), MEP ES 1.05 (95% CI; 0.87, 1.28), MEHP ES 1.15 (95% CI; 0.67, 1.98), MBzP ES 0.97 (95% CI; 0.63, 1.49), MEOHP ES 1.87 (95% CI; 1.21, 2.87), and MEHHP ES 1.98 (95% CI; 1.32, 2.98). Cadmium exposure and endometrial cancer risk ES 1.14 (95% CI; 0.92, 1.41). Cadmium exposure and the risk of endometriosis ES 2.54 (95% CI; 1.71, 3.77). Lead exposure and the risk of endometriosis ES 1.74 (95% CI; 1.13, 2.69). CONCLUSION Increased serum, urinary, or dietary concentration of MBzP and MEHP in women is significantly associated with endometriosis risk. Increased cadmium concentration is associated with endometrial cancer risk.
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Affiliation(s)
- Natasha Chitakwa
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, China
| | - Mohammed Alqudaimi
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, China
| | - Mazhar Sultan
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Di Wu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, China.
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Brennan E, Butler AE, Nandakumar M, Thompson K, Sathyapalan T, Atkin SL. Relationship between endocrine disrupting chemicals (phthalate metabolites, triclosan and bisphenols) and vitamin D in female subjects: An exploratory pilot study. Chemosphere 2024; 349:140894. [PMID: 38070612 DOI: 10.1016/j.chemosphere.2023.140894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/08/2023] [Accepted: 12/02/2023] [Indexed: 01/10/2024]
Abstract
INTRODUCTION Evidence suggests that endocrine disrupting chemicals (EDCs), commonly used in plastics and personal care products, may be associated with reduced levels of vitamin D. Therefore, this study examined the relationship between phthalate metabolites, 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan; TCS) and bisphenols (BPs) with vitamin D3 (25(OH)D3) and active 1,25-dihydroxyvitamin D3 (1,25(OH)2D3), and their relationship to calcium homeostasis. METHODS 57 female participants (age 31.8 ± 4.6 years; BMI 25.6 ± 3.7 kg/m2) were analyzed for urinary levels of phthalate metabolites, TCS and BPs, and serum levels of 25(OH)D3 and 1,25(OH)2D3, determined by isotope-dilution liquid chromatography tandem mass spectrometry. Serum calcium/calmodulin-dependent (CaM) associated proteins were determined by Slow Off-rate Modified Aptamer (SOMA)-scan. RESULTS In the study cohort, 25(OH)D3 and 1,25(OH)2D3 levels were 22.9 ± 11.2 ng/mL and 0.05 ± 0.02 ng/mL, respectively: mono-3-carboxypropyl-phthalate (MCPP) correlated negatively with 25(OH)D3 (ρ = -0.53, p = 0.01). 28 of the 57 women recruited were 25(OH)D3 deficient, <20 ng/mL (50 nmol/L): in this group, mono-iso-butylphthalate (MiBP) and mono-butylphthalate (MBP) negatively correlated with 25(OH)D3; (ρ = -0.47, p = 0.049) and (ρ = -0.64, p = 0.005), respectively. EDCs did not correlate with 1,25(OH)2D3, measures of renal function or CaM proteins. CONCLUSION These putative data indicate that MCPP is related to 25(OH)D3, while MiBP and MBP were related to vitamin D deficiency; however, no correlations were observed with TCS and BPs. No phthalate metabolites correlated with 1,25(OH)2D3, CaM associated proteins or renal function, suggesting that effects occur earlier in the vitamin D pathway and not through modulation of cellular calcium flux. The observed correlations are surprisingly strong compared to other predictors of 25(OH)D3, and larger studies adjusting for potential confounders are warranted.
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Affiliation(s)
- Edwina Brennan
- School of Medicine, Royal College of Surgeons in Ireland-Medical University of Bahrain, Busaiteen, Bahrain.
| | - Alexandra E Butler
- School of Medicine, Royal College of Surgeons in Ireland-Medical University of Bahrain, Busaiteen, Bahrain.
| | - Manjula Nandakumar
- School of Medicine, Royal College of Surgeons in Ireland-Medical University of Bahrain, Busaiteen, Bahrain.
| | - Kristie Thompson
- Queensland Alliance for Environmental Health Sciences, The University of Queensland, QLD, Australia.
| | | | - Stephen L Atkin
- School of Medicine, Royal College of Surgeons in Ireland-Medical University of Bahrain, Busaiteen, Bahrain.
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Gubó E, Plutzer J, Molnár T, Pordán-Háber D, Szabó L, Szalai Z, Gubó R, Szakál P, Szakál T, Környei L, Bede-Fazekas Á, Kalocsai R. A 4-year study of bovine reproductive hormones that are induced by pharmaceuticals and appear as steroid estrogenic pollutants in the resulting slurry, using in vitro and instrumental analytical methods. Environ Sci Pollut Res Int 2023; 30:125596-125608. [PMID: 38006481 PMCID: PMC10754748 DOI: 10.1007/s11356-023-31126-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/16/2023] [Indexed: 11/27/2023]
Abstract
The main objective of the research was to study the environmental "price" of the large-scale, milk production from a rarely known perspective, from the mapping of the estrogenic footprint (the amount of oestrus-inducer hormonal products, and the generated endoestrogens) in the resulting slurry in a dairy cow farm. These micropollutants are endocrine-disrupting chemicals (EDCs) and can be dangerous to the normal reproductive functions even at ng/kg concentration. One of them, 17ß-estradiol, has a 20,000 times stronger estrogenic effect than bisphenol-A, a widely known EDC of industrial origin. While most studies on EDCs are short-term and/or laboratory based, this study is longitudinal and field-based. We sampled the slurry pool on a quarterly basis between 2017 and 2020. Our purpose was testing the estrogenic effects using a dual approach. As an effect-based, holistic method, we developed and used the YES (yeast estrogen screen) test employing the genetically modified Saccharomyces cerevisiae BJ3505 strain which contains human estrogenic receptor. For testing exact molecules, UHPLC-FLD was used. Our study points out that slurry contains a growing amount of EDCs with the risk of penetrating into the soil, crops and the food chain. Considering the Green Chemistry concept, the most benign ways to prevent of the pollution of the slurry is choosing appropriate oestrus-inducing veterinary pharmaceuticals (OIVPs) and the separation of the solid and liquid parts with adequate treatment methods. To our knowledge, this is the first paper on the adaptation of the YES test for medicine and slurry samples, extending its applicability. The adapted YES test turned out to be a sensitive, robust and reliable method for testing samples with potential estrogenic effect. Our dual approach was successful in evaluating the estrogenic effect of the slurry samples.
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Affiliation(s)
- Eduárd Gubó
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary.
- reAgro Research and Development Ltd., Győrújbarát, Hungary.
| | - Judit Plutzer
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
| | - Tibor Molnár
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
| | - Dóra Pordán-Háber
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
- reAgro Research and Development Ltd., Győrújbarát, Hungary
| | - Lili Szabó
- Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Geographical Institute, Budapest, Hungary
| | - Zoltán Szalai
- Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Geographical Institute, Budapest, Hungary
| | - Richard Gubó
- SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No.1, Huairou District, Beijing, 101407, China
- National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing, 101400, China
| | - Pál Szakál
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
| | - Tamás Szakál
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
| | - László Környei
- Department of Mathematics and Computational Sciences, Széchenyi István University, Győr, Hungary
| | - Ákos Bede-Fazekas
- Department of Environmental and Landscape Geography, Eötvös Lóránd University, Budapest, Hungary
| | - Renátó Kalocsai
- Albert Kázmér Faculty, Széchenyi István University, Vár Tér 2, 9200, Mosonmagyaróvár, Hungary
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Silori R, Kumar M, Madhab Mahapatra D, Biswas P, Prakash Vellanki B, Mahlknecht J, Mohammad Tauseef S, Barcelo D. Prevalence of Endocrine Disrupting Chemicals in the urban wastewater treatment systems of Dehradun, India: Daunting presence of Estrone. Environ Res 2023; 235:116673. [PMID: 37454796 DOI: 10.1016/j.envres.2023.116673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/05/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023]
Abstract
We quantified the occurrences and seasonal variations of the target endocrine disrupting chemicals (EDCs) at four (two major municipals, and two academic institutions) WWTPs in Dehradun city, Uttarakhand, India. The results showed estrone in higher concentrations at μgL-1 levels in influent among the WWTPs, compared to triclosan (TCS) at ngL-1 levels. An astounding concentration of 123.95 μgL-1 was recorded for the estrone in the influent, which is to date the highest ever recorded, globally. Statistical data treatment was performed to test the distribution of the data (Shapiro-Wilk, Anderson-Darling, Lilliefors, and Jarque-Bera tests), and the significant difference between the mean of the wastewater sample population (ANOVA: F statistics, p values, Mann-Whitney test, Tukey's and Dunn's post hoc analysis). Statistical data treatment indicated EDCs concentration with a bi-modal distribution. The Shapiro-Wilk, Anderson-Darling, Lilliefors, and Jarque-Bera tests elucidate a non-normal distribution for the EDCs sample data. A statistically significant difference (F = 8.46; p < 0.0001) in the seasonal data for the abundance of the target EDCs at the WWTPs have been observed. Highest and significantly different mean EDCs concentrations were recorded during the monsoon, compared to the spring (p = 0.025) and summer (p = 0.0004) seasons in the influent waters. The mean influent concentrations of TCS and estrone in monsoon were 66.45 ngL-1 and 78.02 μgL-1, respectively. Maximum removals were recorded for TCS, while maximum negative removal of ∼293% was observed for estrone in the WWTPs. Particularly, the high levels of estrone in the wastewater pose a significant threat as estrone presence could be led to feminization, dysregulation of reproduction in organisms, and carcinogenesis processes in the environment. This study critically highlights the limitation of the WWTPs in the treatment, degradation, and assimilation of EDCs leading to their hyperaccumulation at WWTP effluents, thereby posing a substantial threat to nearby aquatic ecosystems, human health, and the ecological balance of the region.
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Affiliation(s)
- Rahul Silori
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India
| | - Manish Kumar
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey, 64849, Nuevo Leon, Mexico.
| | - Durga Madhab Mahapatra
- Department of Chemical Engineering, Energy Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India; Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, USA
| | - Pinakshi Biswas
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Bhanu Prakash Vellanki
- Department of Civil Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
| | - Jürgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterey, Monterrey, 64849, Nuevo Leon, Mexico
| | - Syed Mohammad Tauseef
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India
| | - Damia Barcelo
- Sustainability Cluster, School of Advanced Engineering, UPES, Dehradun, Uttarakhand, 248007, India; Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 1826, Barcelona, 08034, Spain
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Abstract
Endometriosis is a hormone-dependent inflammatory gynecological disease of reproductive-age women. It is clinically and pathologically characterized by the presence of functional endometrium as heterogeneous lesions outside the uterine cavity. The two major symptoms are chronic pelvic pain and infertility, which profoundly affect women's reproductive health and quality of life. This significant individual and public health concerns underscore the importance of understanding the pathogenesis of endometriosis. The environmental endocrine-disrupting chemicals (EDCs) are exogenous agents that interfere with the synthesis, secretion, transport, signaling, or metabolism of hormones responsible for homeostasis, reproduction, and developmental processes. Endometriosis has been potentially linked to exposure to EDCs. In this review, based on the robust literature search, we have selected four endocrine disruptors (i) polychlorinated biphenyls (PCB)s (ii) dioxins (TCDD) (iii) bisphenol A (BPA) and its analogs and (iv) phthalates to elucidate their critical role in the etiopathogenesis of endometriosis. The epidemiological and experimental data discussed in this review indicate that these four EDCs activate multiple intracellular signaling pathways associated with proinflammation, estrogen, progesterone, prostaglandins, cell survival, apoptosis, migration, invasion, and growth of endometriosis. The available information strongly indicates that environmental exposure to EDCs such as PCBs, dioxins, BPA, and phthalates individually or collectively contribute to the pathophysiology of endometriosis. Further understanding of the molecular mechanisms of how these EDCs establish endometriosis and therapeutic strategies to mitigate the effects of these EDCs in the pathogenesis of endometriosis are timely needed. Moreover, understanding the interactive roles of these EDCs in the pathogenesis of endometriosis will help regulate the exposure to these EDCs in reproductive age women.
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Affiliation(s)
- Sudipta Dutta
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA
| | - Sakhila K Banu
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA.
| | - Joe A Arosh
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA.
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Chen Y, Xiao H, Namat A, Liu J, Ruan F, Xu S, Li R, Xia W. Association between trimester-specific exposure to thirteen endocrine disrupting chemicals and preterm birth: Comparison of three statistical models. Sci Total Environ 2022; 851:158236. [PMID: 36041600 DOI: 10.1016/j.scitotenv.2022.158236] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Growing evidence indicated that maternal exposure to some endocrine disrupting chemicals (EDCs) may increase the risk of preterm birth (PTB). However, few studies have evaluated the joint effect of EDCs on PTB. OBJECTIVES This study aimed to evaluate the associations of maternal EDCs mixture in the 1st, 2nd, and 3rd trimesters during pregnancy with PTB, and identify the vital components that mainly contribute to PTB. METHODS This study included 847 pregnant women that provided urine samples for all three trimesters. Urinary concentrations of thirteen EDC metabolites (four phthalates, two parabens, three phenols, and four benzotriazoles and benzothiazoles) were examined. Logistic regression model, quantile g-computation and Bayesian kernel machine regression (BKMR) models were applied to study the association. RESULTS Logistic regression model suggested that only bisphenol A (BPA) in the 1st trimester significantly increased the OR of PTB after adjusting for BPA exposure in the 2nd and 3rd trimesters. Quantile g-computation model identified that urinary EDCs mixture in the 1st trimester were positively associated with PTB [OR (95 % CI): 1.98 (1.10, 3.58)], and the most heavily weighted component for PTB was BPA (26 %), followed by mono-2ethylhexyl phthalate (MEHP) (22 %). BKMR model determined a significant association between EDCs mixture in the 1st trimester and PTB when all EDC concentrations were at or above their 55th percentile compared with the median. The BKMR model found that BPA and MEHP were associated with an increase in the estimated probability of PTB, when the other EDCs were held to their 50th and 75th percentiles, respectively, in the 1st trimester. CONCLUSIONS The results of mixture analysis models indicated that exposure to higher EDCs mixture in the 1st trimester may increase the risk of PTB. BPA was considered as the most contributing factor for PTB among the detected EDCs.
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Affiliation(s)
- Yingyu Chen
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Han Xiao
- Institute of Maternal and Child Health, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Asmagvl Namat
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Juan Liu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Fengyu Ruan
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Ruizhen Li
- Department of Child Health Care, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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Finckh S, Buchinger S, Escher BI, Hollert H, König M, Krauss M, Leekitratanapisan W, Schiwy S, Schlichting R, Shuliakevich A, Brack W. Endocrine disrupting chemicals entering European rivers: Occurrence and adverse mixture effects in treated wastewater. Environ Int 2022; 170:107608. [PMID: 36343551 PMCID: PMC9720157 DOI: 10.1016/j.envint.2022.107608] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
In the present study on endocrine disrupting chemicals (EDCs) in treated wastewater, we used chemical and effect-based tools to analyse 56 wastewater treatment plant (WWTP) effluents from 15 European countries. The main objectives were (i) to compare three different receptor-based estrogenicity assays (ERα-GeneBLAzer, p-YES, ERα-CALUX®), and (ii) to investigate a combined approach of chemical target analysis and receptor-based testing for estrogenicity, glucocorticogenic activity, androgenicity and progestagenic activity (ERα-, GR-, AR- and PR-GeneBLAzer assays, respectively) in treated wastewater. A total of 56 steroids and phenols were detected at concentrations ranging from 25 pg/L (estriol, E3) up to 2.4 μg/L (cortisone). WWTP effluents, which passed an advanced treatment via ozonation or via activated carbon, were found to be less contaminated, in terms of lower or no detection of steroids and phenols, as well as hormone receptor-mediated effects. This result was confirmed by the effect screening, including the three ERα-bioassays. In the GeneBLAzer assays, ERα-activity was detected in 82 %, and GR-activity in 73 % of the samples, while AR- and PR-activity were only measured in 14 % and 21 % of the samples, respectively. 17β-estradiol was confirmed as the estrogen dominating the observed estrogenic mixture effect and triamcinolone acetonide was the dominant driver of glucocorticogenic activity. The comparison of bioanalytical equivalent concentrations (BEQ) predicted from the detected concentrations and the relative effect potency (BEQchem) with measured BEQ (BEQbio) demonstrated good correlations of chemical target analysis and receptor-based testing results with deviations mostly within a factor of 10. Bioassay-specific effect-based trigger values (EBTs) from the literature, but also newly calculated EBTs based on previously proposed derivation options, were applied and allowed a preliminary assessment of the water quality of the tested WWTP effluent samples. Overall, this study demonstrates the high potential of linking chemical with effect-based analysis in water quality assessment with regard to EDC contamination.
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Affiliation(s)
- Saskia Finckh
- Department of Effect-Directed Analysis, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany; Department of Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main, Germany.
| | - Sebastian Buchinger
- Department of Biochemistry and Ecotoxicology, Federal Institute for Hydrology - BfG, Koblenz, Germany
| | - Beate I Escher
- Department of Cell Toxicology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany; Environmental Toxicology, Department of Geosciences, Eberhard Karls University, Tübingen, Germany
| | - Henner Hollert
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main, Germany
| | - Maria König
- Department of Cell Toxicology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Martin Krauss
- Department of Effect-Directed Analysis, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Warich Leekitratanapisan
- Environmental Toxicology Unit - GhEnToxLab, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Sabrina Schiwy
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main, Germany
| | - Rita Schlichting
- Department of Cell Toxicology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Aliaksandra Shuliakevich
- Department of Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main, Germany
| | - Werner Brack
- Department of Effect-Directed Analysis, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany; Department of Evolutionary Ecology and Environmental Toxicology, Goethe University, Frankfurt am Main, Germany
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Maddalon A, Masi M, Iulini M, Linciano P, Galbiati V, Marinovich M, Racchi M, Buoso E, Corsini E. Effects of endocrine active contaminating pesticides on RACK1 expression and immunological consequences in THP-1 cells. Environ Toxicol Pharmacol 2022; 95:103971. [PMID: 36084878 DOI: 10.1016/j.etap.2022.103971] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/15/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
We have previously demonstrated that RACK1, which expression is under steroid hormone control, plays an important role in the activation of immune cells and its expression can be useful to evaluate the immunotoxic profile of endocrine disrupting chemicals (EDCs). Hence, we investigated the effects of three contaminating and persistent pesticides: the fungicide vinclozolin (VIN), the herbicide atrazine (ATR) and the insecticide cypermethrin (CYP) on RACK1 expression and on innate immune response. VIN resulted in modest alteration of RACK1 while ATR and CYP reduced in a dose dependent manner RACK1 expression, ultimately leading to the decrease in lipopolysaccharide-induced IL-8 and TNF-α release and CD86 and CD54 surface marker expression. Moreover, our data indicate that, after exposure to EDCs, alterations of RACK1 expression can also occur with mechanisms not directly mediated by an interaction with a nuclear or membrane steroid receptors. Therefore, RACK1 could represent a useful EDCs screening tool to evaluate their immunotoxic potential and to dissect their mechanisms of action.
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Affiliation(s)
- Ambra Maddalon
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Mirco Masi
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy; Scuola Universitaria Superiore IUSS, Piazza della Vittoria 15, 27100 Pavia, Italy
| | - Martina Iulini
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Pasquale Linciano
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy
| | - Valentina Galbiati
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Marina Marinovich
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Marco Racchi
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy
| | - Erica Buoso
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy; Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Emanuela Corsini
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
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9
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Masi M, Maddalon A, Iulini M, Linciano P, Galbiati V, Marinovich M, Racchi M, Corsini E, Buoso E. Effects of endocrine disrupting chemicals on the expression of RACK1 and LPS-induced THP-1 cell activation. Toxicology 2022; 480:153321. [PMID: 36113621 DOI: 10.1016/j.tox.2022.153321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 12/01/2022]
Abstract
The existence of a complex hormonal balance among glucocorticoids, androgens and estrogens involved in the regulation of Receptor for Activated C Kinase 1 (RACK1) expression and its related immune cells activation, highlights the possibility to employ this protein as screening tool for the evaluation of the immunotoxic profile of endocrine disrupting chemicals (EDCs), hormone-active substances capable of interfering with the physiologic hormonal signaling. Hence, the aim of this work was to investigate the effect of the exposure of EDCS 17α-ethynylestradiol (EE), diethyl phthalate (DEP) and perfluorooctanesulfonic acid (PFOS) on RACK1 expression and on lipopolysaccharide (LPS)-induced activation of the human monocytic cell line THP-1, a validated model for this investigation. In line with our previous results with estrogen-active compounds, EE treatment significantly induced RACK1 promoter transcriptional activity, mRNA expression, and protein levels, which paralleled an increase in LPS-induced IL-8, TNF-α production and CD86 expression, previously demonstrated to be dependent on RACK1/PKCβ activation. EE mediates its effect on RACK1 expression through G-protein-coupled estrogen receptor (GPER) and androgen receptor (AR) ligand-independent cascade, as also suggested by in silico molecular docking simulation. Conversely, DEP and PFOS induced a dose-dependent downregulation of RACK1 promoter transcriptional activity, mRNA expression, and protein levels, which was mirrored by a reduction of IL-8, TNF-α production and CD86 expression. Mifepristone pre-treatments abolish DEP and PFOS effects, confirming their GR agonist profile, also corroborated by molecular docking. Altogether, our data confirm that RACK1 represents an interesting target of steroid active compounds, which expression offers the opportunity to screen the immunotoxic potential of different hormone-active substances of concerns due to their human exposure and environmental persistence.
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Affiliation(s)
- Mirco Masi
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy; Scuola Universitaria Superiore IUSS, Piazza della Vittoria 15, 27100 Pavia, Italy
| | - Ambra Maddalon
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Martina Iulini
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Pasquale Linciano
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy
| | - Valentina Galbiati
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Marina Marinovich
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Marco Racchi
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy
| | - Emanuela Corsini
- Laboratory of Toxicology, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy
| | - Erica Buoso
- Dipartimento di Scienze del Farmaco, Università Degli Studi di Pavia, Viale Taramelli 12/14, 27100 Pavia, Italy; Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA 02118, USA.
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10
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Zhu X, Jiang L, Wang Y, Ji X, Zhang D, Xu G, Wu D, Li A, Xie X. Validation and application of diffusive gradient in thin-film (DGT) equipped novel cyclodextrin polymer gels for monitoring endocrine disrupting chemicals (EDCs) and environmental risk assessment in the Taihu lake basin. Environ Res 2022; 212:113391. [PMID: 35597293 DOI: 10.1016/j.envres.2022.113391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
Taihu Lake is the most important drinking water source of the major cities in the Yangtze River Delta. The pollution of endocrine disruptors (EDCs)in Taihu Lake has been increasing recently, the accurate determination is an important guide for predicting its health risks and developing appropriate controls. Monitoring organic pollutants in water using the diffusive gradient in thin film technique (DGT) has attracted much attention due to more accuracy and convenience than the grab sampling methods. In this study, a novel cyclodextrin polymer (CDP) synthesized by the simple and green method in water was taken as an adsorbent for the binding gel. Four endocrine-disrupting chemicals (EDCs), bisphenol A (BPA), 17α-ethinylestradiol (EE2), 17β-estradiol (E2), and estriol (E3), were taken as models to determine the diffusion coefficients (4.68 × 10-6, 3.38 × 10-6, 3.34 × 10-6 and 4.31 × 10-6 cm2/s) and to test the performance of DGT, such as adsorption capacity and deployment time (1-5 day). The assembled CDP-DGT was adopted to determine four EDCs in a simulated water environment (3-9 of pH, 0.001-0.5 M of ionic strength (IS), and dissolved organic matter (DOM) of 0-20 mg/L). The ability of CDP-DGT sampling was verified in the Jiuxiang River and was carried out for a large-scale field application of in situ sampling EDCs in Taihu Lake basin. The results show that the total EDCs concentration range and the estradiol equivalent concentrations (EEQ) in Taihu Lake and its main rivers are 2.78 ng/L to 11.08 ng/L and 2.62 ng/L to 10.91 ng/L, respectively. The risk quotients (RQs) of all sampling sites in the region were greater than 1, indicating that EDCs pose a serious threat to aquatic organisms in the area. Therefore, the monitoring of EDCs in the Taihu Lake basin should be further strengthened.
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Affiliation(s)
- Xingqi Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Lu Jiang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Yinfeng Wang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang, 330031, China; Jiangxi Nanxin Environmental Protection Technology Co. LTD, Jiujiang City of Jiangxi Province, 330300, China
| | - Xiaowen Ji
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Canada
| | - Delin Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Guizhou Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Daishe Wu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang, 330031, China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China
| | - Xianchuan Xie
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, PR China; Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang, 330031, China; Jiangxi Nanxin Environmental Protection Technology Co. LTD, Jiujiang City of Jiangxi Province, 330300, China.
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11
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Ravichandran J, Karthikeyan BS, Samal A. Investigation of a derived adverse outcome pathway (AOP) network for endocrine-mediated perturbations. Sci Total Environ 2022; 826:154112. [PMID: 35219661 DOI: 10.1016/j.scitotenv.2022.154112] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
An adverse outcome pathway (AOP) is a compact representation of the available mechanistic information on observed adverse effects upon environmental exposure. Sharing of events across individual AOPs has led to the emergence of AOP networks. Since AOP networks are expected to be functional units of toxicity prediction, there is current interest in their development tailored to specific research question or regulatory problem. To this end, we have developed a detailed workflow to construct an endocrine-relevant AOP (ED-AOP) network based on the existing information available in AOP-Wiki. We propose a cumulative weight of evidence (WoE) score for each ED-AOP based on the WoE scores assigned to key event relationships (KERs) by AOP-Wiki, revealing gaps in AOP development. Connectivity analysis of the ED-AOP network comprising 48 AOPs reveals 7 connected components and 12 isolated AOPs. Subsequently, we apply standard network measures to perform an in-depth analysis of the two largest connected components of the ED-AOP network. Notably, the graph-theoretic analyses led to the identification of important events including points of convergence or divergence in the ED-AOP network. These findings can suggest potential adverse outcomes and facilitate the development of new endpoints or assays for chemical risk assessment. Detailed analysis of the largest component in the ED-AOP network gives insights on the systems-level perturbations caused by endocrine disruption, emergent paths, and stressor-event associations. In sum, the derived ED-AOP network can provide a broader view of the biological events disrupted by endocrine disruption, as well as facilitate better risk assessment of environmental chemicals.
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Affiliation(s)
- Janani Ravichandran
- The Institute of Mathematical Sciences (IMSc), Chennai 600113, India; Homi Bhabha National Institute (HBNI), Mumbai 400094, India
| | | | - Areejit Samal
- The Institute of Mathematical Sciences (IMSc), Chennai 600113, India; Homi Bhabha National Institute (HBNI), Mumbai 400094, India.
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12
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Flasch M, Bueschl C, Del Favero G, Adam G, Schuhmacher R, Marko D, Warth B. Elucidation of xenoestrogen metabolism by non-targeted, stable isotope-assisted mass spectrometry in breast cancer cells. Environ Int 2022; 158:106940. [PMID: 34673318 DOI: 10.1016/j.envint.2021.106940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/13/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Environmental exposure to xenoestrogens, i.e., chemicals that imitate the hormone 17β-estradiol, has the potential to influence hormone homeostasis and action. Detailed knowledge of xenobiotic biotransformation processes in cell models is key when transferring knowledge learned from in vitro models to in vivo relevance. This study elucidated the metabolism of two naturally-occurring phyto- and mycoestrogens; namely genistein and zearalenone, in an estrogen receptor positive breast cancer cell line (MCF-7) with the aid of stable isotope-assisted metabolomics and the bioinformatic tool MetExtract II. Metabolism was studied in a time course experiment after 2 h, 6 h and 24 h incubation. Twelve and six biotransformation products of zearalenone and genistein were detected, respectively, clearly demonstrating the abundant xenobiotic biotransformation capability of the cells. Zearalenone underwent extensive phase-I metabolism resulting in α-zearalenol (α-ZEL), a molecule known to possess a significantly higher estrogenicity, and several phase-II metabolites (sulfo- and glycoconjugates) of the native compound and the major phase I metabolite α-ZEL. Moreover, potential adducts of zearalenone with a vitamin and several hydroxylated metabolites were annotated. Genistein metabolism resulted in sulfation, combined sulfation and hydroxylation, acetylation, glucuronidation and unexpectedly adduct formation with pentose- and hexose sugars. Kinetics of metabolite formation and subsequent excretion into the extracellular medium revealed a time-dependent increase in most biotransformation products. The untargeted elucidation of biotransformation products formed during cell culture experiments enables an improved and more meaningful interpretation of toxicological assays and has the potential to identify unexpected or unknown metabolites.
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Affiliation(s)
- Mira Flasch
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Str. 38, 1090 Vienna, Austria
| | - Christoph Bueschl
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Agrobiotechnology, IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, Konrad-Lorenz-Str. 20, 3430 Tulln, Austria; University of Vienna, Faculty of Chemistry, Department of Analytical Chemistry, Währinger Str. 38, 1090 Vienna, Austria
| | - Giorgia Del Favero
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Str. 38, 1090 Vienna, Austria
| | - Gerhard Adam
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Applied Genetics and Cell Biology, Institute of Microbial Genetics, Konrad-Lorenz-Str. 24, 3430 Tulln, Austria
| | - Rainer Schuhmacher
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Agrobiotechnology, IFA-Tulln, Institute of Bioanalytics and Agro-Metabolomics, Konrad-Lorenz-Str. 20, 3430 Tulln, Austria
| | - Doris Marko
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Str. 38, 1090 Vienna, Austria
| | - Benedikt Warth
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Str. 38, 1090 Vienna, Austria.
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13
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Mo Y, Lao HI, Au SW, Li IC, Hu J, Yuen HM, Cheong WM, Lo OLI, Seak LCU. Expression, secretion and functional characterization of three laccases in E. coli. Synth Syst Biotechnol 2021; 7:474-480. [PMID: 34938906 PMCID: PMC8665402 DOI: 10.1016/j.synbio.2021.12.002] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/09/2021] [Accepted: 12/02/2021] [Indexed: 11/17/2022] Open
Abstract
Endocrine Disrupting Chemicals (EDCs) are a group of molecules that can influence hormonal balance, causing disturbance of the reproductive system and other health problems. Despite the efforts to eliminate EDC in the environment, all current approaches are inefficient and expensive. In previous research, studies revealed that laccase-producing microorganisms may be a potential candidate for EDC degradation, as laccases have been found to be able to degrade many kinds of EDCs effectively and steadily. Here, we created two recombinant laccases, each fused with secretion peptide, Novel Signal Peptide 4 (NSP4), and expressed them in Escherichia coli (E. coli, BL21), together with one laccase without secretion peptide. We first optimized the culture condition of expressing these laccases. Then, we test the activity of the recombinant laccases of decolorizing of a synthetic dye, indigo carmine. Finally, we confirmed the secreted can degrade one of the EDCs, β-estradiol, showing the potential of using the laccase secretion system to degrade toxic compounds.
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Affiliation(s)
- Yating Mo
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Hou Ip Lao
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Sau Wa Au
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Ieng Chon Li
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Jeremy Hu
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Hoi Man Yuen
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Wai Man Cheong
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China
| | - Owen Lok In Lo
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China.,The Centre for Inflammation Research, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, United Kingdom
| | - Leo Chi U Seak
- Pui Ching Middle School (Macau), Edificio Pui Ching, 7A Av. de Horta e Costa, Macau SAR, China.,Department of Physiology, Development of Neuroscience, University of Cambridge, Cambridge, CB2 3DY, United Kingdom
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14
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Xie QP, Li BB, Wei FL, Yu M, Zhan W, Liu F, Lou B. Growth and gonadal development retardations after long-term exposure to estradiol in little yellow croaker, Larimichthys polyactis. Ecotoxicol Environ Saf 2021; 222:112462. [PMID: 34217113 DOI: 10.1016/j.ecoenv.2021.112462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/08/2021] [Accepted: 06/23/2021] [Indexed: 05/25/2023]
Abstract
Endocrine disrupting chemicals (EDCs) including 17β-estradiol (E2) are widely distributed in the aquatic environment and are known to negatively affect the reproductive system of many animals, including fish. EDCs leading to feminization, altered sex ratio and reduced fecundity, it is possibly posing potential risks to the ecosystems. To investigate the potentially toxic effects of E2 exposure on little yellow croaker (Larimichthys polyactis, L. poliactis) who have a unique gonadal development pattern that males undergo a hermaphroditic stage. An experiment was set up where L. poliactis were maintained in tanks and exposed to E2 concentrations of 10 μg/L or no E2 exposure (the ethanol and control groups) from 30 to 90 days post-hatching (dph). After exposure, the E2 withdrawal and continual cultured to 150 and 365 dph. The morphological and histological analyses were used to compare the changes in the fish body and gonad under E2 exposure. The results showed that E2 exposure caused three major phenotypes at 30 and 60 days after treatment (dat), including ovary, ovotestis and gonadal development retardation compared with the control groups. The average ratio of these three phenotypes is 60.6%, 11.97% and 27.43%, respectively. The body length and weight of E2 exposure groups were repressed during the E2 exposure period, while it can recover after E2 withdrawal. However, the gonadal development (Gonadosomatic Index) of E2 exposure groups testis were retarded at 60 dat and doesn't recover until 365 dph. The sex determination/differentiation-related genes erα, erβI, erβII, fshβ and cyp11b2 were significantly decreased in E2-exposure male fish. This research highlights the E2 leads to feminization, disrupts testis maturation and spermatogenesis, this effect persisted into the stage of sexual maturity. Collectively, our findings provide insights into the molecular mechanisms underlying E2 disturbance of a marine economic fish reproduction.
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Affiliation(s)
- Qing-Ping Xie
- Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Bing-Bing Li
- School of Fishery, Zhejiang Ocean University, Zhoushan 316021, China
| | - Fu-Liang Wei
- School of Fishery, Zhejiang Ocean University, Zhoushan 316021, China
| | - Min Yu
- School of Fishery, Zhejiang Ocean University, Zhoushan 316021, China
| | - Wei Zhan
- Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Feng Liu
- Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Bao Lou
- Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
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15
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Abstract
Male sex determination and sexual differentiation occur between 6-12 weeks of gestation. During the "male programming window" the fetal testes start to produce testosterone that initiates the development of the male reproductive tract. Exposure to endocrine disrupting chemicals (EDCs) able to mimic or disrupt steroid hormone actions may disrupt testicular development and adversely impact reproductive health at birth, during puberty and adulthood. The testicular dysgenesis syndrome (TDS) occurs as a result inhibition of androgen action on fetal development preceding Sertoli and Leydig cell dysfunction and may result from direct or epigenetic effects. Hypospadias, cryptorchidism and poor semen quality are elements of TDS, which may be considered a risk factor for testicular germ cell cancer (TGCC). Exposure to estrogen or estrogenic EDCs results in developmental estrogenization/estrogen imprinting in the rodent for prostate cancer (PCa). This can disrupt prostate histology by disorganization of the epithelium, prostatic intraepithelial neoplasia (PIN) lesions, in particular high-grade PIN (HGPIN) lesions which are precursors of prostatic adenocarcinoma. These defects persist throughout the lifespan of the animal and later in life estrogen exposure predispose development of cancer. Exposure of pregnant dams to vinclozolin, a competitive anti-androgen, and results in prominent, focal regions of inflammation in all exposed animals. The inflammation closely resembles human nonbacterial prostatitis that occurs in young men and evidence indicates that inflammation plays a central role in the development of PCa. In conclusion, in utero exposure to endocrine disrupters may predispose to the development of TDS, testicular cancer (TCa) and PCa and are illustrations of Developmental Origins of Health and Disease (DOHaD).
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Affiliation(s)
- M S Bornman
- Environmental Chemical Pollution and Health Research Unit, Faculty of Health Sciences, School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa.
| | - N H Aneck-Hahn
- Environmental Chemical Pollution and Health Research Unit, Faculty of Health Sciences, School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa; Environmental Chemical Pollution and Health Research Unit, Faculty of Health Sciences, School of Medicine, Department of Urology, University of Pretoria, Pretoria, South Africa
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16
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Kim S, Thapar I, Brooks BW. Epigenetic changes by per- and polyfluoroalkyl substances (PFAS). Environ Pollut 2021; 279:116929. [PMID: 33751946 DOI: 10.1016/j.envpol.2021.116929] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [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: 11/28/2020] [Revised: 02/07/2021] [Accepted: 03/03/2021] [Indexed: 05/09/2023]
Abstract
Increasing studies are examining per- and polyfluoroalkyl substances (PFAS) induced toxicity and resulting health outcomes, including epigenetic modifications (e.g., DNA methylation, histone modification, microRNA expression). We critically reviewed current evidence from human epidemiological, in vitro, and animal studies, including mammalian and aquatic model organisms. Epidemiological studies identified the associations between perfluorooctane sulfonate (PFOS) or perfluorooctanoic acid (PFOA) exposure and epigenetic changes in both adult populations and birth cohorts. For in vitro studies, various cell types including neuroblasts, preadipocytes, and hepatocytes have been employed to understand epigenetic effects of PFAS. In studies with animal models, effects of early life exposure to PFAS have been examined using rodent models, and aquatic models (e.g., zebrafish) have been more frequently used in recent years. Several studies highlighted oxidative stress as a key mediator between epigenetic modification and health effects. Collectively, previous research clearly suggest involvement of epigenetic mechanisms in PFAS induced toxicity, though these efforts have primarily focused on specific PFASs (i.e. mainly PFOS and PFOA) or endpoints (i.e. cancer). Additional studies are necessary to define specific linkages among epigenetic mechanisms and related biomarkers or phenotypical changes. In addition, future research is also needed for understudied PFAS and complex mixtures. Studies of epigenetic effects elicited by individual PFAS and mixtures are needed within an adverse outcome pathways framework, which will advance an understanding of PFAS risks to public health and the environment, and support efforts to design less hazardous chemicals.
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Affiliation(s)
- Sujin Kim
- Department of Environmental Science, Baylor University, Waco, TX, 76706, USA; Institute of Biomedical Studies, Baylor University, Waco, TX, 76706, USA.
| | - Isha Thapar
- Department of Environmental Science, Baylor University, Waco, TX, 76706, USA; Honors College, Baylor University, Waco, TX, 76706, USA
| | - Bryan W Brooks
- Department of Environmental Science, Baylor University, Waco, TX, 76706, USA; Institute of Biomedical Studies, Baylor University, Waco, TX, 76706, USA.
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17
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Moreira IS, Lebel A, Peng X, Castro PML, Gonçalves D. Sediments in the mangrove areas contribute to the removal of endocrine disrupting chemicals in coastal sediments of Macau SAR, China, and harbour microbial communities capable of degrading E2, EE2, BPA and BPS. Biodegradation 2021; 32:511-529. [PMID: 34037892 DOI: 10.1007/s10532-021-09948-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 05/15/2021] [Indexed: 10/21/2022]
Abstract
The occurrence of endocrine disrupting chemicals (EDCs) is a major issue for marine and coastal environments in the proximity of urban areas. The occurrence of EDCs in the Pearl River Delta region is well documented but specific data related to Macao is unavailable. The levels of bisphenol-A (BPA), estrone (E1), 17α-estradiol (αE2), 17β-estradiol (E2), estriol (E3), and 17α-ethynylestradiol (EE2) were measured in sediment samples collected along the coastline of Macao. BPA was found in all 45 collected samples with lower BPA concentrations associated to the presence of mangrove trees. Biodegradation assays were performed to evaluate the capacity of the microbial communities of the surveyed ecosystems to degrade BPA and its analogue BPS. Using sediments collected at a WWTP discharge point as inoculum, at a concentration of 2 mg l-1 complete removal of BPA was observed within 6 days, whereas for the same concentration BPS removal was of 95% after 10 days, which is particularly interesting since this compound is considered recalcitrant to biodegradation and likely to accumulate in the environment. Supplementation with BPA improved the degradation of bisphenol-S (BPS). Aiming at the isolation of EDCs-degrading bacteria, enrichments were established with sediments supplied with BPA, BPS, E2 and EE2, which led to the isolation of a bacterial strain, identified as Rhodoccoccus sp. ED55, able to degrade the four compounds at different extents. The isolated strain represents a valuable candidate for bioremediation of contaminated soils and waters.
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Affiliation(s)
- Irina S Moreira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
| | - Alexandre Lebel
- Institute of Science and Environment, University of Saint Joseph, Rua de Londres 106, Macau S.A.R., China
| | - Xianzhi Peng
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Wushan, Tianhe District, Guangzhou, 510640, GD, China
| | - Paula M L Castro
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - David Gonçalves
- Institute of Science and Environment, University of Saint Joseph, Rua de Londres 106, Macau S.A.R., China
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18
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Rashid H, Alqahtani SS, Alshahrani S. Diet: A Source of Endocrine Disruptors. Endocr Metab Immune Disord Drug Targets 2021; 20:633-645. [PMID: 31642798 DOI: 10.2174/1871530319666191022100141] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/18/2019] [Accepted: 10/01/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Food is indispensable for human life and determines the health and wellbeing of the consumer. As food is the source of energy for humans, it also emerges as one of the most important sources of exposure to deleterious chemicals both natural and synthetic. The food exposed chemicals cause a number of detrimental health effects in humans, with endocrine disruption being of serious concern amongst these effects. Such chemicals disrupting the health of endocrine system are known as endocrine-disrupting chemicals (EDCs). The food exposed EDCs need to be identified and classified to effectuate a cautious consumption of food by all and especially by vulnerable groups. AIM The aim of the present review was to discuss food as a source of exposure to common endocrine disruptors in humans. This review presents the occurrence and levels of some of the critical endocrine disruptors exposed through frequently consumed diets. METHODS The major source of data was PubMed, besides other relevant publications. The focus was laid on data from the last five years, however significant earlier data was also considered. CONCLUSION The food as a source of endocrine disruptors to humans cannot be neglected. It is highly imperative for the consumer to recognize food as a source of EDCs and make informed choices in the consumption of food items.
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Affiliation(s)
- Hina Rashid
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
| | - Saad S Alqahtani
- Clinical Pharmacy Department, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
| | - Saeed Alshahrani
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan, Saudi Arabia
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19
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Karthikeyan BS, Ravichandran J, Aparna SR, Samal A. DEDuCT 2.0: An updated knowledgebase and an exploration of the current regulations and guidelines from the perspective of endocrine disrupting chemicals. Chemosphere 2021; 267:128898. [PMID: 33190914 DOI: 10.1016/j.chemosphere.2020.128898] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 06/11/2023]
Abstract
The regulatory assessment of endocrine disrupting chemicals (EDCs) is complex due to the lack of a standardized definition of EDCs and validated testing criteria. In spite of these challenges, there is growing scientific interest in EDCs which has resulted in the rapid expansion of published literature on endocrine disruption upon chemical exposure. Here, we explore how academic research leading to curated knowledgebases can inform current chemical regulations on EDCs. To this end, we present an updated knowledgebase, DEDuCT 2.0, containing 792 potential EDCs with supporting evidence from 2218 research articles. Thereafter, we study the distribution of potential EDCs across several chemical lists that reflect guidelines for use or regulations. Further, to understand the scale of possible exposure to the potential EDCs present in chemical lists, we compare them with high production volume chemicals. Notably, we find many potential EDCs are in use across various product categories such as 'Food additives and Food contact materials' and 'Cosmetics and household products'. Several of these EDCs are also produced or manufactured in high volume across the world. Lastly, we illustrate using an example how diverse information in curated knowledgebases such as DEDuCT 2.0 can be helpful in the risk assessment of EDCs. In sum, we highlight the need to bridge the gap between academic and regulatory aspects of chemical safety, as a step towards the better management of environment and health hazards such as EDCs.
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Affiliation(s)
| | - Janani Ravichandran
- The Institute of Mathematical Sciences (IMSc), Chennai, 600113, India; Homi Bhabha National Institute (HBNI), Mumbai, 400094, India.
| | - S R Aparna
- The Institute of Mathematical Sciences (IMSc), Chennai, 600113, India
| | - Areejit Samal
- The Institute of Mathematical Sciences (IMSc), Chennai, 600113, India; Homi Bhabha National Institute (HBNI), Mumbai, 400094, India.
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20
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Nagel SC, Kassotis CD, Vandenberg LN, Lawrence BP, Robert J, Balise VD. Developmental exposure to a mixture of unconventional oil and gas chemicals: A review of experimental effects on adult health, behavior, and disease. Mol Cell Endocrinol 2020; 513:110722. [PMID: 32147523 PMCID: PMC7539678 DOI: 10.1016/j.mce.2020.110722] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 12/12/2019] [Accepted: 01/16/2020] [Indexed: 01/01/2023]
Abstract
Unconventional oil and natural gas extraction (UOG) combines directional drilling and hydraulic fracturing and produces billions of liters of wastewater per year. Herein, we review experimental studies that evaluated the potential endocrine-mediated health impacts of exposure to a mixture of 23 UOG chemicals commonly found in wastewater. The purpose of this manuscript is to synthesize and summarize a body of work using the same UOG-mix but with different model systems and physiological endpoints in multiple experiments. The studies reviewed were conducted in laboratory animals (mice or tadpoles) and human tissue culture cells. A key feature of the in vivo studies was the use of four environmentally relevant doses spanning three orders of magnitude ranging from concentrations found in surface and ground water in UOG dense areas to concentrations found in UOG wastewater. This UOG-mix exhibited potent antagonist activity for the estrogen, androgen, glucocorticoid, progesterone, and thyroid receptors in human tissue culture cells. Subsequently, pregnant mice were administered the UOG-mix in drinking water and offspring were examined in adulthood or to tadpoles. Developmental exposure profoundly impacted pituitary hormone concentrations, reduced sperm counts, altered folliculogenesis, and increased mammary gland ductal density and preneoplastic lesions in mice. It also altered energy expenditure, exploratory and risk-taking behavior, the immune system in three immune models in mice, and affected basal and antiviral immunity in frogs. These findings highlight the diverse systems affected by developmental EDC exposure and the need to examine human and animal health in UOG regions.
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Affiliation(s)
- S C Nagel
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, DC051.00 One Hospital Drive, Columbia, MO, 65211, USA.
| | - C D Kassotis
- Nicholas School of the Environment, Duke University, 450 Research Drive, Durham, NC, 27708, USA
| | - L N Vandenberg
- School of Public Health & Health Sciences, Department of Environmental Health Sciences, University of Massachusetts Amherst, 171C Goessmann, 686 N. Pleasant Street, Amherst, MA, 01003, USA
| | - B P Lawrence
- Departments of Microbiology and Immunology, and Environmental Medicine, 601 Elmwood Avenue, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - J Robert
- Departments of Microbiology and Immunology, and Environmental Medicine, 601 Elmwood Avenue, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - V D Balise
- Department of Pathology, University of New Mexico Health Science Center, University of New Mexico, Albuquerque, NM, 87131, USA
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21
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Lucaccioni L, Trevisani V, Marrozzini L, Bertoncelli N, Predieri B, Lugli L, Berardi A, Iughetti L. Endocrine-Disrupting Chemicals and Their Effects during Female Puberty: A Review of Current Evidence. Int J Mol Sci 2020; 21:E2078. [PMID: 32197344 DOI: 10.3390/ijms21062078] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 12/11/2022] Open
Abstract
Puberty is the process of physical changes between childhood and adulthood during which adolescents reach sexual maturity and become capable of reproduction. It is considered one of the main temporal windows of susceptibility for the influence of the endocrine-disrupting chemicals (EDCs). EDCs may act as single chemical agents or as chemical mixtures; they can be pubertal influencers, accelerating and anticipating the processing of maturation of secondary sexual characteristics. Moreover, recent studies have started to point out how exposure to EDCs during puberty may predispose to breast cancer later in life. In fact, the estrogen-mimicking endocrine disruptors (EEDs) may influence breast tissue development during puberty in two main ways: the first is the action on the proliferation of the breast stromal cells, the second concerns epigenetic mechanisms. The aim of this mini-review was to better highlight what is new and what is not completely known regarding the role of EDCs during puberty.
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22
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Cuvillier-Hot V, Lenoir A. Invertebrates facing environmental contamination by endocrine disruptors: Novel evidences and recent insights. Mol Cell Endocrinol 2020; 504:110712. [PMID: 31962147 DOI: 10.1016/j.mce.2020.110712] [Citation(s) in RCA: 30] [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: 01/28/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/08/2023]
Abstract
The crisis of biodiversity we currently experience raises the question of the impact of anthropogenic chemicals on wild life health. Endocrine disruptors are notably incriminated because of their possible effects on development and reproduction, including at very low doses. As commonly recorded in the field, the burden they impose on wild species also concerns invertebrates, with possible specificities linked with the specific physiology of these animals. A better understanding of chemically-mediated endocrine disruption in these species has clearly gained from knowledge accumulated on vertebrate models. But the molecular pathways specific to invertebrates also need to be reckoned, which implies dedicated research efforts to decipher their basic functioning in order to be able to assess its possible disruption. The recent rising of omics technologies opens the way to an intensification of these efforts on both aspects, even in species almost uninvestigated so far.
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Affiliation(s)
| | - Alain Lenoir
- IRBI, Institut de Recherche sur la Biologie de l'Insecte, UMR CNRS, Faculté des Sciences, Parc de Grandmont, Université de Tours, Tours, France
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23
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Karthikeyan BS, Ravichandran J, Mohanraj K, Vivek-Ananth RP, Samal A. A curated knowledgebase on endocrine disrupting chemicals and their biological systems-level perturbations. Sci Total Environ 2019; 692:281-296. [PMID: 31349169 DOI: 10.1016/j.scitotenv.2019.07.225] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/28/2019] [Accepted: 07/14/2019] [Indexed: 05/22/2023]
Abstract
Human well-being can be affected by exposure to several chemicals in the environment. One such group is endocrine disrupting chemicals (EDCs) that can perturb the hormonal homeostasis leading to adverse health effects. In this work, we have developed a detailed workflow to identify EDCs with supporting evidence of endocrine disruption in published experiments in humans or rodents. Thereafter, this workflow was used to manually evaluate more than 16,000 published research articles and identify 686 potential EDCs with published evidence in humans or rodents. Importantly, we have compiled the observed adverse effects or endocrine-specific perturbations along with the dosage information for the potential EDCs from their supporting published experiments. Subsequently, the potential EDCs were classified based on the type of supporting evidence, their environmental source and their chemical properties. Additional compiled information for potential EDCs include their chemical structure, physicochemical properties, predicted ADMET properties and target genes. In order to enable future research based on this compiled information on potential EDCs, we have built an online knowledgebase, Database of Endocrine Disrupting Chemicals and their Toxicity profiles (DEDuCT), accessible at: https://cb.imsc.res.in/deduct/. After building this comprehensive resource, we have performed a network-centric analysis of the chemical space and the associated biological space of target genes of EDCs. Specifically, we have constructed two networks of EDCs using our resource based on similarity of chemical structures or target genes. Ensuing analysis revealed a lack of correlation between chemical structure and target genes of EDCs. Though our detailed results highlight potential challenges in developing predictive models for EDCs, the compiled information in our resource will undoubtedly enable future research in the field, especially, those focussed towards mechanistic understanding of the systems-level perturbations caused by EDCs.
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Affiliation(s)
| | - Janani Ravichandran
- The Institute of Mathematical Sciences (IMSc), Homi Bhabha National Institute (HBNI), Chennai 600113, India.
| | - Karthikeyan Mohanraj
- The Institute of Mathematical Sciences (IMSc), Homi Bhabha National Institute (HBNI), Chennai 600113, India
| | - R P Vivek-Ananth
- The Institute of Mathematical Sciences (IMSc), Homi Bhabha National Institute (HBNI), Chennai 600113, India
| | - Areejit Samal
- The Institute of Mathematical Sciences (IMSc), Homi Bhabha National Institute (HBNI), Chennai 600113, India.
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24
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Heo S, Safder U, Yoo C. Deep learning driven QSAR model for environmental toxicology: Effects of endocrine disrupting chemicals on human health. Environ Pollut 2019; 253:29-38. [PMID: 31302400 DOI: 10.1016/j.envpol.2019.06.081] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 06/04/2019] [Accepted: 06/21/2019] [Indexed: 06/10/2023]
Abstract
Over 80,000 endocrine-disrupting chemicals (EDCs) are considered emerging contaminants (ECs), which are of great concern due to their effects on human health. Quantitative structure-activity relationship (QSAR) models are a promising alternative to in vitro methods to predict the toxicological effects of chemicals on human health. In this study, we assessed a deep-learning based QSAR (DL-QSAR) model to predict the qualitative and the quantitative effects of EDCs on the human endocrine system, and especially sex-hormone binding globulin (SHBG) and estrogen receptor (ER). Statistical analyses of the qualitative responses indicated that the accuracies of all three DL-QSAR methods were above 90%, and greater than the other statistical and machine learning models, indicating excellent classification performance. The quantitative analyses, as assessed using deep-neural-network-based QSAR (DNN-QSAR), resulted in a coefficient of determination (R2) of 0.80 and predictive square correlation coefficient (Q2) of 0.86, which implied satisfactory goodness of fit and predictive ability. Thus, DNN was able to transform sparse molecular descriptors into higher dimensional spaces, and was superior for assessment qualitative responses. Moreover, DNN-QSAR demonstrated excellent performance in the discipline of computational chemistry by handling multicollinearity and overfitting problems.
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Affiliation(s)
- SungKu Heo
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Gicheung-gu, Yongin-Si, Gyeonggi-Do, 446-701, Republic of Korea
| | - Usman Safder
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Gicheung-gu, Yongin-Si, Gyeonggi-Do, 446-701, Republic of Korea
| | - ChangKyoo Yoo
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Gicheung-gu, Yongin-Si, Gyeonggi-Do, 446-701, Republic of Korea.
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25
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Bai X, Acharya K. Removal of seven endocrine disrupting chemicals (EDCs) from municipal wastewater effluents by a freshwater green alga. Environ Pollut 2019; 247:534-540. [PMID: 30708315 DOI: 10.1016/j.envpol.2019.01.075] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/16/2019] [Accepted: 01/20/2019] [Indexed: 05/20/2023]
Abstract
The present endocrine disrupting chemicals (EDCs) in wastewater effluents due to incomplete removal during the treatment processes may cause potential ecological and human health risks. This study evaluated the removal and uptake of seven EDCs spiked in two types of wastewater effluent (i.e., ultrafiltration and ozonation) and effluent cultivated with the freshwater green alga Nannochloris sp. In ultrafiltration effluent cultivated with Nannochloris sp. for 7 days, the removal rate of 17β-estradiol (E2), 17α-ethinylestradiol (EE2), and salicylic acid (SAL) was 60%; but Nannochloris sp. did not promote the removal of other EDCs studied. The algal-mediated removal of E2, EE2, and SAL was attributed to photodegradation and biodegradation. Triclosan (TCS) underwent rapid photodegradation regardless of adding algae in the effluent with 63%-100% removal within 7 days. Triclosan was also found associated with algal cells immediately after adding algae, and thus the primary mechanisms involved were photodegradation and bioremoval (i.e., bioadsorption and bioaccumulation). After algal cultivation, TCS still has a bioaccumulation potential to pose high risks within the food web and the endocrine disrupting properties of the residual estrogens in the effluent are not eliminated. Algal cultivation can be exploited to treat wastewater effluents but the removal efficiencies of EDCs highly depend on chemical types.
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Affiliation(s)
- Xuelian Bai
- Division of Hydrologic Sciences, Desert Research Institute, Las Vegas, NV, 89119, United States.
| | - Kumud Acharya
- Division of Hydrologic Sciences, Desert Research Institute, Las Vegas, NV, 89119, United States
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26
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Lenters V, Iszatt N, Forns J, Čechová E, Kočan A, Legler J, Leonards P, Stigum H, Eggesbø M. Early-life exposure to persistent organic pollutants (OCPs, PBDEs, PCBs, PFASs) and attention-deficit/hyperactivity disorder: A multi-pollutant analysis of a Norwegian birth cohort. Environ Int 2019; 125:33-42. [PMID: 30703609 DOI: 10.1016/j.envint.2019.01.020] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 11/20/2018] [Accepted: 01/07/2019] [Indexed: 05/27/2023]
Abstract
BACKGROUND Numerous ubiquitous environmental chemicals are established or suspected neurotoxicants, and infants are exposed to a mixture of these during the critical period of brain maturation. However, evidence for associations with the risk of attention-deficit/hyperactivity disorder (ADHD) is sparse. We investigated early-life chemical exposures in relation to ADHD. METHODS We used a birth cohort of 2606 Norwegian mother-child pairs enrolled 2002-2009 (HUMIS), and studied a subset of 1199 pairs oversampled for child neurodevelopmental outcomes. Concentrations of 27 persistent organic pollutants (14 polychlorinated biphenyls, 5 organochlorine pesticides, 6 brominated flame retardants, and 2 perfluoroalkyl substances) were measured in breast milk, reflecting the child's early-life exposures. We estimated postnatal exposures in the first 2 years of life using a pharmacokinetic model. Fifty-five children had a clinical diagnosis of ADHD (hyperkinetic disorder) by 2016, at a median age of 13 years. We used elastic net penalized logistic regression models to identify associations while adjusting for co-exposure confounding, and subsequently used multivariable logistic regression models to obtain effect estimates for the selected exposures. RESULTS Breast milk concentrations of perfluorooctane sulfonate (PFOS) and β‑hexachlorocyclohexane (β-HCH) were associated with increased odds of ADHD: odds ratio (OR) = 1.77, 95% confidence interval (CI): 1.16, 2.72 and OR = 1.75, 95% CI: 1.22, 2.53, per interquartile range increase in ln-transformed concentrations, respectively. Stronger associations were observed among girls than boys for PFOS (pinteraction = 0.025). p,p'‑Dichlorodiphenyltrichloroethane (p,p'-DDT) levels were associated with lower odds of ADHD (OR = 0.64, 95% CI: 0.42, 0.97). Hexachlorobenzene (HCB) had a non-linear association with ADHD, with increasing risk in the low-level exposure range that switched to a decreasing risk at concentrations above 8 ng/g lipid. Postnatal exposures showed similar results, whereas effect estimates for other chemicals were weaker and imprecise. CONCLUSIONS In a multi-pollutant analysis of four classes of chemicals, early-life exposure to β-HCH and PFOS was associated with increased risk of ADHD, with suggestion of sex-specific effects for PFOS. The unexpected inverse associations between p,p'-DDT and higher HCB levels and ADHD could be due to live birth bias; alternatively, results may be due to chance findings.
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Affiliation(s)
- Virissa Lenters
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway.
| | - Nina Iszatt
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway.
| | - Joan Forns
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway.
| | - Eliška Čechová
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Kamenice; 753/5, 625 00 Brno, Czech Republic.
| | - Anton Kočan
- Research Centre for Toxic Compounds in the Environment, Faculty of Science, Masaryk University, Kamenice; 753/5, 625 00 Brno, Czech Republic.
| | - Juliette Legler
- Institute for Environmental Studies, VU University Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, the Netherlands.
| | - Pim Leonards
- Institute for Environmental Studies, VU University Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, the Netherlands.
| | - Hein Stigum
- Department of Non-Communicable Diseases, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway.
| | - Merete Eggesbø
- Department of Environmental Exposure and Epidemiology, Norwegian Institute of Public Health, P.O. Box 222 Skøyen, 0213 Oslo, Norway.
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Porta M, Vandenberg LN. There are good clinical, scientific, and social reasons to strengthen links between biomedical and environmental research. J Clin Epidemiol 2019; 111:124-6. [PMID: 30905697 DOI: 10.1016/j.jclinepi.2019.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/04/2019] [Indexed: 02/07/2023]
Abstract
Clinical epidemiology rarely addresses biological, clinical, epidemiological, environmental, economic, and other social and scientific issues posed by environmental chemical contaminants such as endocrine-disrupting chemicals. There is a considerable gap between research and practice in clinical medicine and in environmental health. Organizations often fail to appreciate the human and economic costs of the diseases that environmental chemical contaminants contribute to cause. Also, the relative lack of attention to environmental causes of disease by researchers in medicine and clinical epidemiology cannot be explained just on scientific grounds. Many scientists have shown the virtues of integrative research. Knowledge on the causes of disease is often secondary in clinical practice, but in other instances, to help patients, clinicians tackle causes of diseases. We can better address how environmental contaminants influence negatively not just the occurrence of disease but its course. To do so, we can generate better evidence and strengthen the social conversation on environmental influences on all dimensions of health and disease.
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28
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Kang H, Kim S, Lee G, Lee I, Lee JP, Lee J, Park H, Moon HB, Park J, Kim S, Choi G, Choi K. Urinary metabolites of dibutyl phthalate and benzophenone-3 are potential chemical risk factors of chronic kidney function markers among healthy women. Environ Int 2019; 124:354-360. [PMID: 30660848 DOI: 10.1016/j.envint.2019.01.028] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 05/26/2023]
Abstract
Chronic kidney disease (CKD) is a global health threat of growing concern. Recently, exposure to endocrine disrupting compounds (EDCs) such as phthalates and bisphenol A has been suggested as a risk factor for CKD. However, most epidemiological studies have focused on a limited number of urinary chemicals. This study aimed to identify chemical determinants of the urinary albumin-to-creatinine ratio (ACR), which is a kidney function marker, among multiple major EDCs including phthalate metabolites, bisphenols, and benzophenones in a Korean female population (20-45 years old, n = 441). First, the creatinine-adjusted urinary concentration of each urinary chemical was associated with ACR in a linear regression model (single-pollutant model). Then, compounds with a significant association with ACR in the single-pollutant model were added in a multi-pollutant model and evaluated for their association with ACR. Moreover, to prevent potential reverse causality due to impaired kidney function, quartile analyses were performed for the subjects with healthy renal function (ACR < 9.71 mg/g). In addition to creatinine adjustment, the statistical analysis was also conducted with specific gravity-adjusted concentrations of urinary chemicals, and the results were compared. Several compounds measured in the urine showed a significant association with ACR in the single-pollutant model. In the multi-pollutant model, however, only monobutyl phthalate and benzophenone-1, which are metabolites of dibutyl phthalate and benzophenone-3, respectively, showed significant positive associations. The association of these chemicals remained significant in a couple of the sensitivity analyses with a different adjustment of urine dilution and in a subpopulation with normal ACR. In conclusion, among dozens of urinary chemicals, monobutyl phthalate and benzophenone-1 consistently showed a strong association with urinary ACR. Confirmation of our observation in other human populations and experimental studies is warranted.
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Affiliation(s)
- Habyeong Kang
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Sunmi Kim
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Gowoon Lee
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Inae Lee
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Jung Pyo Lee
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeonghwan Lee
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Hyunwoong Park
- Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Science and Convergence Engineering, Hanyang University, Ansan, Republic of Korea
| | - Jeongim Park
- Department of Natural Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Sungkyoon Kim
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Gyuyeon Choi
- Department of Obstetrics and Gynecology, College of Medicine, Soonchunhyang University, Seoul, Republic of Korea
| | - Kyungho Choi
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, Republic of Korea.
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Li Y, Xu S, Li Y, Zhang B, Huo W, Zhu Y, Wan Y, Zheng T, Zhou A, Chen Z, Huang Z, Hu J, Zhang W, Wang X, Ye D, Xia W. Association between urinary parabens and gestational diabetes mellitus across prepregnancy body mass index categories. Environ Res 2019; 170:151-159. [PMID: 30579989 DOI: 10.1016/j.envres.2018.12.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
Increasing evidence suggests a potential role of endocrine disrupting chemicals (EDCs) in inducing gestational diabetes mellitus (GDM). However, as far as we know, no study has examined the associations between GDM and exposure to parabens, a kind of EDCs. In this study, we explored the association between urinary parabens of pregnant women and GDM and studied the modification effect of prepregnancy body mass index (BMI). Urine samples were collected from 696 pregnant women and parabens were measured, including four alkyl side chain substituted para-hydroxybenzoic acid ester, substituents varying from methyl to butyl (abbreviates as MeP, EtP, PrP and BuP), and benzyl substituted para-hydroxybenzoic acid ester (BzP). Logistic regression models adjusting for potential confounders were used to study the association of parabens and GDM in the overall population, and further stratified analysis by prepregnancy BMI categories was also performed. The detection rates for the five parabens in the urine samples were 97.70% (MeP), 71.26% (EtP), 96.55% (PrP), 15.80% (BuP) and 2.73% (BzP). No significant association was found between parabens and GDM among the overall population. However, significant non-linear associations of PrP and the summed estrogenic activity of parabens with GDM were found in the stratified analysis by prepregnancy BMI in the overweight/obese population, with adjusted odds ratios (aORs) of 3.47 (95% CI: 1.28, 9.42) and 2.87 (95% CI: 1.07, 7.73) for GDM in the second tertile of urinary PrP and the summed estrogen activity, respectively, when compared to the first tertile. Although no statistically significant association between parabens and GDM was found in the overall population, we found that among the overweight/obese pregnant women, who represent a subgroup more prone to GDM, moderately higher levels of PrP and summed estrogenic activity of parabens were significantly associated with an increasing GDM prevalence.
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Affiliation(s)
- Ying Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Bin Zhang
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Wenqian Huo
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yingshuang Zhu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yanjian Wan
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Tongzhang Zheng
- Department of Epidemiology, Brown University, Providence, RI, USA
| | - Aifen Zhou
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Zhong Chen
- Women and Children Medical and Healthcare Center of Wuhan, Wuhan, Hubei, People's Republic of China
| | - Zheng Huang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Jie Hu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wenxin Zhang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xianliang Wang
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, People's Republic of China
| | - Dan Ye
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, People's Republic of China
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Prasatkaew W, Nanthanawat P, Khongchareonporn N, Kingtong S. A monoclonal antibody against Lates calcarifer vitellogenin and a competitive ELISA to evaluate vitellogenin induction after exposure to xenoestrogen. J Environ Sci (China) 2019; 75:325-333. [PMID: 30473298 DOI: 10.1016/j.jes.2018.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 04/28/2018] [Accepted: 05/02/2018] [Indexed: 06/09/2023]
Abstract
A monoclonal antibody specific to sea bass (Lates calcarifer) vitellogenin (VTG) was developed, for use as a tool for monitoring endocrine disrupting chemicals (EDCs). VTG was induced in sea bass by intramuscular injection of 17β-estradiol (E2: 2 mg/kg) every three days. Blood was collected three days after the last injection. Plasma VTG was then purified by chromatography in hydroxyapatite and a sephacryl-S300 column. Characterizations of purified VTG were done by phospholipoglycoprotein staining on a native-PAGE with confirmation by mass spectrometry (LC-MS/MS). Antibody was raised in mice by injection of purified VTG. After monoclonal antibody production, the hybridoma clone No. 41 (MAb-sea bass VTG 41) was selected and developed for quantification of VTG by competitive enzyme-linked immunosorbent assay (ELISA). The ELISA method was sensitive with a detection limit of VTG 40 ng/mL. MAb-sea bass VTG 41 was specific to VTG from E2-treated sea bass and others EDCs (Nonylphenol, Benzo[a]pyrene and CdCl2). Moreover, cross-reactivity was also found in E2-treated coral grouper (Epinephelus corallicola). The ELISA method obtained from this work can be further applied for the assessment of EDCs in Thailand and Southeast Asia's aquatic environment.
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Affiliation(s)
- Witchuda Prasatkaew
- Environmental Science program, Faculty of Science, Burapha University, Chon Buri 20131, Thailand.
| | - Phochit Nanthanawat
- Department of Biotechnology, Faculty of Science, Burapha University, Chon Buri 20131, Thailand.
| | - Nanthika Khongchareonporn
- The Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok 10400, Thailand
| | - Sutin Kingtong
- Department of Biology, Faculty of Science, Burapha University, Chon Buri 20131, Thailand
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Krishnan K, Rahman S, Hasbum A, Morales D, Thompson LM, Crews D, Gore AC. Maternal care modulates transgenerational effects of endocrine-disrupting chemicals on offspring pup vocalizations and adult behaviors. Horm Behav 2019; 107:96-109. [PMID: 30576639 PMCID: PMC6366859 DOI: 10.1016/j.yhbeh.2018.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 07/29/2018] [Revised: 12/17/2018] [Accepted: 12/17/2018] [Indexed: 01/08/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) can act upon a developing organism to change its endocrine health and behavior in adulthood. Beyond actions on the exposed individuals, transgenerational effects of several EDCs have been reported. This study assessed the combinatorial impact of EDC-altered maternal care and transgenerational inheritance on F3 male and female offspring. Pregnant rats were exposed to EDCs with different modes of action: the weakly estrogenic polychlorinated biphenyl (PCB) mixture Aroclor 1221, the anti-androgenic fungicide vinclozolin (VIN), or the vehicle (6% dimethylsulfoxide in sesame oil; VEH) during embryonic development. The F1 male and female offspring were bred through the paternal- or maternal-lineage with untreated partners to generate F2 offspring. This process was repeated through both maternal and paternal lineages to create the F3 generation. Maternal care of F2 dams towards their F3 offspring was altered in a lineage-dependent manner, particularly in PCB paternal-lineage animals. When F3 pups were recorded for ultrasonic vocalizations (USVs) following separation from the mother, the rate of neonatal USVs in F3 offspring were decreased in PCB paternal-lineage pups. In adulthood, anxiety-like behaviors of the F3 rats were tested, with only small effects of EDCs detected. These interactions of maternal behaviors and EDC effects across generations, especially via the paternal lineage, has implications for health and environmental responses in wildlife and humans.
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Affiliation(s)
- Krittika Krishnan
- Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Shafaqat Rahman
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Asbiel Hasbum
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Daniel Morales
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Lindsay M Thompson
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - David Crews
- Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA; Department of Integrative Biology, College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712, USA
| | - Andrea C Gore
- Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA; Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA.
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Abstract
BACKGROUND This meta-analytic study explored the relationship between the risk of type 2 diabetes mellitus (T2DM) and bisphenol A concentrations. METHODS The Embase and Medline (PubMed) databases were searched, using relevant keywords, for studies published between 1980 and 2018. A total of 16 studies, twelve cross-sectional, two case-control and one prospective, were included in the meta-analysis. The odds ratio (OR) and its 95% confidence interval (CI) were determined across the sixteen studies. The OR and its 95% CI of diabetes associated with bisphenol A were estimated using both fixed-effects and random-effects models. RESULTS A total of 41,320 subjects were included. Fourteen of the sixteen studies included in the analysis provided measurements of urine bisphenol A levels and two study provided serum bisphenol A levels. Bisphenol A concentrations in human bio-specimens showed positive associations with T2DM risk (OR 1.28, 95% CI 1.14, 1.44). A sensitivity analysis indicated that urine bisphenol A concentrations were positively associated with T2DM risk (OR 1.20, 95% CI 1.09, 1.31). CONCLUSIONS This meta-analysis indicated that Bisphenol A exposure is positively associated with T2DM risk in humans.
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Affiliation(s)
- Semi Hwang
- Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Jung-eun Lim
- Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
| | - Yoonjeong Choi
- Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea
| | - Sun Ha Jee
- Department of Epidemiology and Health Promotion, Institute for Health Promotion, Graduate School of Public Health, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722 Republic of Korea
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Govarts E, Iszatt N, Trnovec T, de Cock M, Eggesbø M, Palkovicova Murinova L, van de Bor M, Guxens M, Chevrier C, Koppen G, Lamoree M, Hertz-Picciotto I, Lopez-Espinosa MJ, Lertxundi A, Grimalt JO, Torrent M, Goñi-Irigoyen F, Vermeulen R, Legler J, Schoeters G. Prenatal exposure to endocrine disrupting chemicals and risk of being born small for gestational age: Pooled analysis of seven European birth cohorts. Environ Int 2018; 115:267-278. [PMID: 29605679 DOI: 10.1016/j.envint.2018.03.017] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 05/05/2023]
Abstract
BACKGROUND AND AIMS There is evidence that endocrine disrupting chemicals (EDCs) have developmental effects at environmental concentrations. We investigated whether some EDCs are associated with the adverse birth outcome Small for Gestational Age (SGA). METHODS We used PCB 153, p,p'-DDE, HCB, PFOS and PFOA measured in maternal, cord blood or breast milk samples of 5446 mother-child pairs (subset of 693 for the perfluorinated compounds) from seven European birth cohorts (1997-2012). SGA infants were those with birth weight below the 10th percentile for the norms defined by gestational age, country and infant's sex. We modelled the association between measured or estimated cord serum EDC concentrations and SGA using multiple logistic regression analyses. We explored effect modification by child's sex and maternal smoking during pregnancy. RESULTS Among the 5446 newborns, 570 (10.5%) were SGA. An interquartile range (IQR) increase in PCB 153 was associated with a modestly increased risk of SGA (odds ratio (OR) of 1.05 [95% CI: 1.04-1.07]) that was stronger in girls (OR of 1.09 [95% CI: 1.04-1.14]) than in boys (OR of 1.03 [95% CI: 1.03-1.04]) (p-interaction = 0.025). For HCB, we found a modestly increased odds of SGA in girls (OR of 1.04 [95% CI: 1.01-1.07] per IQR increase), and an inverse association in boys (OR of 0.90 [95% CI: 0.85-0.95]) (p-interaction = 0.0003). Assessment of the HCB-sex-smoking interaction suggested that the increased odds of SGA associated with HCB exposure was only in girls of smoking mothers (OR of 1.18 [95% CI: 1.11-1.25]) (p-interaction = 0.055). Higher concentrations of PFOA were associated with greater risk of SGA (OR of 1.64 [95% CI: 0.97-2.76]). Elevated PFOS levels were associated with increased odds of SGA in newborns of mothers who smoked during pregnancy (OR of 1.63 [95% CI: 1.02-2.59]), while an inverse association was found in those of non-smoking mothers (OR of 0.66 [95% CI: 0.61-0.72]) (p-interaction = 0.0004). No significant associations were found for p,p'-DDE. CONCLUSIONS Prenatal environmental exposure to organochlorine and perfluorinated compounds with endocrine disrupting properties may contribute to the prevalence of SGA. We found indication of effect modification by child's sex and smoking during pregnancy. The direction of the associations differed by chemical and these effect modifiers, suggesting diverse mechanisms of action and biological pathways.
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Affiliation(s)
- Eva Govarts
- Unit Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium.
| | - Nina Iszatt
- Department of Contaminants, Diet and Microbiota, Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Tomas Trnovec
- Slovak Medical University, Faculty of Public Health, Department of Environmental Medicine, Bratislava, Slovakia
| | - Marijke de Cock
- Department of Health and Life Sciences, VU University, Amsterdam, The Netherlands
| | - Merete Eggesbø
- Department of Contaminants, Diet and Microbiota, Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Lubica Palkovicova Murinova
- Slovak Medical University, Faculty of Public Health, Department of Environmental Medicine, Bratislava, Slovakia
| | - Margot van de Bor
- Department of Health and Life Sciences, VU University, Amsterdam, The Netherlands
| | - Mònica Guxens
- ISGlobal, Barcelona, Spain; Pompeu Fabra University, Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre-Sophia Children's Hospital, Rotterdam, The Netherlands
| | | | - Gudrun Koppen
- Unit Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Marja Lamoree
- Institute for Environmental Studies (IVM), VU University, Amsterdam, The Netherlands
| | - Irva Hertz-Picciotto
- Department of Health Sciences, School of Medicine, University of California, Davis, USA
| | - Maria-Jose Lopez-Espinosa
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain
| | - Aitana Lertxundi
- Department of Preventive Medicine and Public Health, University of Basque Country (UPV/EHU), Bilbao, Spain; Health Research Institute, Biodonostia, San Sebastian, Spain
| | - Joan O Grimalt
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - Maties Torrent
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Servicio de Salud de las Islas Baleares (IB-Salut), Area de Salut de Menorca, Balearic Islands, Spain
| | - Fernando Goñi-Irigoyen
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Health Research Institute, Biodonostia, San Sebastian, Spain; Public Health Laboratory in Gipuzkoa, Basque Government, San Sebastian, Spain
| | - Roel Vermeulen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Juliette Legler
- Institute for Environmental Studies (IVM), VU University, Amsterdam, The Netherlands; Division of Toxicology and Veterinary Pharmacology, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Greet Schoeters
- Unit Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium; Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium; University of Southern Denmark, Institute of Public Health, Department of Environmental Medicine, Odense, Denmark
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Mustieles V, Ocón-Hernandez O, Mínguez-Alarcón L, Dávila-Arias C, Pérez-Lobato R, Calvente I, Arrebola JP, Vela-Soria F, Rubio S, Hauser R, Olea N, Fernández MF. Bisphenol A and reproductive hormones and cortisol in peripubertal boys: The INMA-Granada cohort. Sci Total Environ 2018; 618:1046-1053. [PMID: 29100688 DOI: 10.1016/j.scitotenv.2017.09.093] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 09/10/2017] [Accepted: 09/10/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Bisphenol A (BPA) is a well-known endocrine disrupting compound. Although several studies have investigated the effect of BPA exposure and reproductive hormones in humans, results have been inconsistent. OBJECTIVE To explore the cross-sectional relationship between bisphenol A (BPA) exposure and reproductive hormones/cortisol among peripubertal boys. MATERIAL AND METHODS Urinary BPA and serum hormones were assessed in 172 boys belonging to the INMA "Environment and Childhood" Granada birth cohort in their follow-up at 9-11years of age. BPA concentrations were quantified by liquid chromatography-mass spectrometry, and levels of serum total testosterone (TT), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and cortisol were measured by electrochemiluminescence immunoassay. RESULT(S) After adjustment for confounders, linear regression models showed that each natural-log unit increase in urinary BPA concentrations was associated with a 19% increase in geometric mean (GM) serum TT levels, and a 16% decrease in GM serum cortisol levels. When urinary BPA concentrations were categorized in tertiles, boys in the 3rd tertile showed 49% higher TT levels and 23% lower cortisol concentrations compared to boys in the 1st tertile. Additionally, urinary BPA concentrations were also significantly associated with higher TT:LH and TT:cortisol ratios, but not with serum LH or FSH levels. CONCLUSION(S) Our results suggest the possible endocrine disrupting potential of BPA during this important period of development. Although action at the testis or pituitary cannot be ruled out, our findings are compatible with a possible involvement of BPA at the adrenal gland, resulting in a differential production of androgens/cortisol. However, given the cross-sectional design of our study, the heterogeneous results reported in the literature, and the scant experimental research on BPA effects at the adrenal gland, the present findings should be interpreted with caution.
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Affiliation(s)
- Vicente Mustieles
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Centro de Investigación Biomédica, Granada, Spain
| | - Olga Ocón-Hernandez
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Department of Obstetrics and Gynecology, Granada, Spain
| | - Lidia Mínguez-Alarcón
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Cristina Dávila-Arias
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain
| | - Rocío Pérez-Lobato
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain
| | - Irene Calvente
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain
| | - Juan P Arrebola
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Centro de Investigación Biomédica, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Spain
| | - Fernando Vela-Soria
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain
| | - Soledad Rubio
- University of Córdoba, Institute of Fine Chemistry and Nanochemistry, 14017 Córdoba, Spain
| | - Russ Hauser
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Vincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Nicolás Olea
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Centro de Investigación Biomédica, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Spain
| | - Mariana F Fernández
- Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios de Granada, Spain; University of Granada, Centro de Investigación Biomédica, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Spain.
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He J, Peng T, Yang X, Liu H. Development of QSAR models for predicting the binding affinity of endocrine disrupting chemicals to eight fish estrogen receptor. Ecotoxicol Environ Saf 2018; 148:211-219. [PMID: 29055205 DOI: 10.1016/j.ecoenv.2017.10.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 07/31/2017] [Revised: 10/06/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
Endocrine disrupting effect has become a central point of concern, and various biological mechanisms involve in the disruption of endocrine system. Recently, we have explored the mechanism of disrupting hormonal transport protein, through the binding affinity of sex hormone-binding globulin in different fish species. This study, serving as a companion article, focused on the mechanism of activating/inhibiting hormone receptor, by investigating the binding interaction of chemicals with the estrogen receptor (ER) of different fish species. We collected the relative binding affinity (RBA) of chemicals with 17β-estradiol binding to the ER of eight fish species. With this parameter as the endpoints, quantitative structure-activity relationship (QSAR) models were established using DRAGON descriptors. Statistical results indicated that the developed models had satisfactory goodness of fit, robustness and predictive ability. The Euclidean distance and Williams plot verified that these models had wide application domains, which covered a large number of structurally diverse chemicals. Based on the screened descriptors, we proposed an appropriate mechanism interpretation for the binding potency. Additionally, even though the same chemical had different affinities for ER from different fish species, the affinity of ER exhibited a high correlation for fish species within the same Order (i.e., Salmoniformes, Cypriniformes, Perciformes), which consistent with that in our previous study. Hence, when performing the endocrine disrupting effect assessment, the species diversity should be taken into account, but maybe the fish species in the same Order can be grouped together.
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Affiliation(s)
- Junyi He
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Tao Peng
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xianhai Yang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Jiang-wang-miao Street, Nanjing 210042, China.
| | - Huihui Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Van Zijl MC, Aneck-Hahn NH, Swart P, Hayward S, Genthe B, De Jager C. Estrogenic activity, chemical levels and health risk assessment of municipal distribution point water from Pretoria and Cape Town, South Africa. Chemosphere 2017; 186:305-313. [PMID: 28787686 DOI: 10.1016/j.chemosphere.2017.07.130] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/27/2017] [Accepted: 07/25/2017] [Indexed: 05/20/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are ubiquitous in the environment and have been detected in drinking water from various countries. Although various water treatment processes can remove EDCs, chemicals can also migrate from pipes that transport water and contaminate drinking water. This study investigated the estrogenic activity in drinking water from various distribution points in Pretoria (City of Tshwane) (n = 40) and Cape Town (n = 40), South Africa, using the recombinant yeast estrogen screen (YES) and the T47D-KBluc reporter gene assay. The samples were collected seasonally over four sampling periods. The samples were also analysed for bisphenol A (BPA), nonylphenol (NP), di(2-ethylhexyl) adipate (DEHA), dibutyl phthalate (DBP), di(2-ethylhexyl) phthalate (DEHP), diisononylphthalate (DINP), 17β-estradiol (E2), estrone (E1) and ethynylestradiol (EE2) using ultra-performance liquid chromatography-tandem mass spectrophotometry (UPLC-MS/MS). This was followed by a scenario based health risk assessment to assess the carcinogenic and toxic human health risks associated with the consumption of distribution point water. None of the water extracts from the distribution points were above the detection limit in the YES bioassay, but the EEq values ranged from 0.002 to 0.114 ng/L using the T47D-KBluc bioassay. BPA, DEHA, DBP, DEHP, DINP E1, E2, and EE2 were detected in distribution point water samples. NP was below the detection limit for all the samples. The estrogenic activity and levels of target chemicals were comparable to the levels found in other countries. Overall the health risk assessment revealed acceptable health and carcinogenic risks associated with the consumption of distribution point water.
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Affiliation(s)
- Magdalena Catherina Van Zijl
- School of Health Systems and Public Health, University of Pretoria, Private Bag X323, Arcadia, 0007, Pretoria, South Africa; Department of Urology, Steve Biko Academic Hospital, Private Bag X323, Arcadia, 0007, Pretoria, South Africa.
| | - Natalie Hildegard Aneck-Hahn
- School of Health Systems and Public Health, University of Pretoria, Private Bag X323, Arcadia, 0007, Pretoria, South Africa; Department of Urology, Steve Biko Academic Hospital, Private Bag X323, Arcadia, 0007, Pretoria, South Africa.
| | - Pieter Swart
- Central Analytical Facility, Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa.
| | - Stefan Hayward
- Central Analytical Facility, Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa.
| | - Bettina Genthe
- Council for Scientific and Industrial Research, Natural Resources and the Environment, PO Box 320, Stellenbosch, 7599, South Africa.
| | - Christiaan De Jager
- School of Health Systems and Public Health, University of Pretoria, Private Bag X323, Arcadia, 0007, Pretoria, South Africa.
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Yang Q, Yang X, Liu J, Ren W, Chen Y, Shen S. Effects of BPF on steroid hormone homeostasis and gene expression in the hypothalamic-pituitary-gonadal axis of zebrafish. Environ Sci Pollut Res Int 2017; 24:21311-21322. [PMID: 28741210 DOI: 10.1007/s11356-017-9773-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 07/14/2017] [Indexed: 06/07/2023]
Abstract
Bisphenol F (BPF) has been frequently detected in various environmental compartments, and previous studies found that BPF exhibits similar estrogenic and anti-androgenic effects on the mammalian endocrine system to those of bisphenol A (BPA). However, the potential disrupting effects of BPF on aquatic organisms and the underling disrupting mechanisms have not been investigated. In this study, the potential disrupting mechanisms of BPF on the hypothalamic-pituitary-gonadal (HPG) axis and liver were probed by employing the OECD 21-day short-term fecundity assay in zebrafish. The results show that BPF exposure (1 mg/L) impaired the reproductive function of zebrafish, as exemplified by alterations to testicular and ovarian histology of the treated zebrafish. Homogenate testosterone (T) levels in male zebrafish decreased in a concentration-dependent manner, and 17β-estradiol (E2) levels increased significantly when fish were exposed to 0.1 and 1 mg/L BPF. The real-time polymerase chain reaction was performed to examine gene expression in the HPG axis and liver. Hepatic vitellogenin expression was significantly upregulated in males, suggesting that BPF possesses estrogenic activity. The disturbed hormone balance was enhanced by the significant changes in gene expression along the HPG axis. These alterations suggest that BPF leads to adverse effects on the endocrine system of teleost fish, and that these effects were more prominent in males than in females.
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Affiliation(s)
- Qian Yang
- The College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No.30 Puzhu South Road, Nanjing, 210009, China
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Steet, Nanjing, 210042, China
| | - Xianhai Yang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Steet, Nanjing, 210042, China
| | - Jining Liu
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Steet, Nanjing, 210042, China.
| | - Wenjuan Ren
- The College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No.30 Puzhu South Road, Nanjing, 210009, China
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Steet, Nanjing, 210042, China
| | - Yingwen Chen
- The College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No.30 Puzhu South Road, Nanjing, 210009, China.
| | - Shubao Shen
- The College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No.30 Puzhu South Road, Nanjing, 210009, China
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Liu H, Yang X, Yin C, Wei M, He X. Development of predictive models for predicting binding affinity of endocrine disrupting chemicals to fish sex hormone-binding globulin. Ecotoxicol Environ Saf 2017; 136:46-54. [PMID: 27816713 DOI: 10.1016/j.ecoenv.2016.10.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 08/12/2016] [Revised: 10/23/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
Disturbing the transport process is a crucial pathway for endocrine disrupting chemicals (EDCs) exerting disrupting endocrine function. However, this mechanism has not received enough attention compared with that of hormones receptors and synthetase. Recently, we have explored the interaction between EDCs and sex hormone-binding globulin of human (hSHBG). In this study, interactions between EDCs and sex hormone-binding globulin of eight fish species (fSHBG) were investigated by employing classification methods and quantitative structure-activity relationships (QSAR). In the modeling, the relative binding affinity (RBA) of a chemical with 17β-estradiol binding to fSHBG was selected as the endpoint. Classification models were developed for two fish species, while QSAR models were established for the other six fish species. Statistical results indicated that the models had satisfactory goodness of fit, robustness and predictive ability, and that application domain covered a large number of endogenous and exogenous steroidal and non-steroidal chemicals. Additionally, by comparing the log RBA values, it was found that the same chemical may have different affinities for fSHBG from different fish species, thus species diversity should be taken into account. However, the affinity of fSHBG showed a high correlation for fishes within the same Order (i.e., Salmoniformes, Cypriniformes, Perciformes and Siluriformes), thus the fSHBG binding data for one fish species could be used to extrapolate other fish species in the same Order.
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Affiliation(s)
- Huihui Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China.
| | - Xianhai Yang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Jiang-wang-miao Street, Nanjing 210042, China.
| | - Cen Yin
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Mengbi Wei
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
| | - Xiao He
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
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Rajendran RK, Huang SL, Lin CC, Kirschner R. Biodegradation of the endocrine disrupter 4-tert-octylphenol by the yeast strain Candida rugopelliculosa RRKY5 via phenolic ring hydroxylation and alkyl chain oxidation pathways. Bioresour Technol 2017; 226:55-64. [PMID: 27987401 DOI: 10.1016/j.biortech.2016.11.129] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 06/06/2023]
Abstract
4-(1,1,3,3-tetramethylbutane)-phenol (4-tert-OP) is one of the most prevalent endocrine disrupting pollutants. Information about bioremediation of 4-tert-OP remains limited, and no study has been reported on the mechanism of 4-tert-OP degradation by yeasts. The yeast Candida rugopelliculosa RRKY5 was proved to be able to utilize 4-methylphenol, bisphenol A, 4-ethylphenol, 4-tert-butylphenol, 4-tert-OP, 4-tert-nonylphenol, isooctane, and phenol under aerobic conditions. The optimum conditions for 4-tert-OP degradation were 30°C, pH 5.0, and an initial 4-tert-OP concentration of 30mgL-1; the maximum biodegradation rate constant was 0.107d-1, equivalent to a minimum half-life of 9.6d. Scanning electron microscopy revealed formation of arthroconidia when cells were grown in the presence of 4-tert-OP, whereas the cells remained in the budding form without 4-tert-OP. Identification of the 4-tert-OP degradation metabolites using liquid chromatography-hybrid mass spectrometry revealed three different mechanisms via both branched alkyl side chain and aromatic ring cleavage pathways.
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Affiliation(s)
- Ranjith Kumar Rajendran
- Department of Life Sciences, National Central University, No. 300, Zhongda Rd., Zhongli District, Taoyuan City 32001, Taiwan
| | - Shir-Ly Huang
- Department of Life Sciences, National Central University, No. 300, Zhongda Rd., Zhongli District, Taoyuan City 32001, Taiwan
| | - Chu-Ching Lin
- Graduate Institute of Environmental Engineering, National Central University, No. 300, Zhongda Rd., Zhongli District, Taoyuan City 32001, Taiwan
| | - Roland Kirschner
- Department of Life Sciences, National Central University, No. 300, Zhongda Rd., Zhongli District, Taoyuan City 32001, Taiwan.
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Shekhar S, Sood S, Showkat S, Lite C, Chandrasekhar A, Vairamani M, Barathi S, Santosh W. Detection of phenolic endocrine disrupting chemicals (EDCs) from maternal blood plasma and amniotic fluid in Indian population. Gen Comp Endocrinol 2017; 241:100-107. [PMID: 27235644 DOI: 10.1016/j.ygcen.2016.05.025] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [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: 12/26/2015] [Revised: 04/29/2016] [Accepted: 05/24/2016] [Indexed: 10/24/2022]
Abstract
There is a widespread exposure of general population, including pregnant women and developing fetuses, to the endocrine disrupting chemicals (EDCs). These chemicals have been reported to be present in urine, blood serum, breast milk and amniotic fluid. We aimed to investigate the association between the maternal exposure and in utero fetal exposure levels of these chemicals to study their transfer from maternal to fetal unit indicating prenatal exposure. Samples of maternal blood and amniotic fluid were collected as set from 53 pregnant women at full term. Nine phenolic EDCs, methyl paraben (MP; 20.92ng/mL and 18.92ng/mL), ethyl paraben (EP; 1.97ng/ mL and 1.89ng/mL), propyl paraben (PP; 19.22ng/mL and 18.82ng/mL), butyl paraben (BP; 1.11ng/mL and 1.37ng/mL), p-hydroxybenzoic acid (PHBA; 29.99ng/mL and 26.15ng/mL), bisphenol A (BPA; 7.43ng/mL and 7.75ng/mL), triclosan (TCS; 7.17ng/mL and 7.04ng/mL), octyl phenol (OP; 5.46ng/mL and 5.72ng/mL) and nonyl phenol (NP; 9.38ng/mL and 8.44ng/mL), were simultaneously detected in samples of maternal blood plasma and amniotic fluid respectively using Gas Chromatography-Mass Spectrometry (GC-MS). Highest positive correlation was found for total concentration of 4-nonyl phenol, NP (r=0.575, p<0.001), whereas the lowest positive correlation was found for free form of bisphenol A, BPA (r=0.343, p<0.05), when compared between the two matrices. Our results suggest that maternal exposure to several EDCs is positively associated with in utero exposure to the developing fetus. Future studies should focus on collection of amniotic fluid at different trimesters and the corresponding maternal samples to better characterize the pharmacokinetics and the associated disease etiologies of these EDCs during fetal development.
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Affiliation(s)
- Sudhanshu Shekhar
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Surbhi Sood
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Sadiya Showkat
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Christy Lite
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Anjalakshi Chandrasekhar
- Department of Obstetrics and Gynecology, SRM Medical College Hospital and Research Centre, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | | | - S Barathi
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India
| | - Winkins Santosh
- Endocrine Disruptors and Reproductive Toxicology (EDART) Laboratory, Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, Tamil Nadu, India; P.G. & Research Department of Advanced Zoology and Biotechnology, Government Arts College for Men, Nandanam, Chennai 600035, Tamil Nadu, India.
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Sood S, Shekhar S, Santosh W. Dimorphic placental stress: A repercussion of interaction between endocrine disrupting chemicals (EDCs) and fetal sex. Med Hypotheses 2017; 99:73-5. [PMID: 28110704 DOI: 10.1016/j.mehy.2017.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 01/02/2017] [Indexed: 12/14/2022]
Abstract
Placental homeostasis is critical for fetal development as it determines the health of mother and fetus during pregnancy and in later life. Interestingly even the fetus, in a sexually dimorphic manner, influences the pedantic growth and development of placenta. Although placenta is thought to act as a protective barrier against chemical exposures, certain endocrine disrupting chemicals (EDCs) that are circulating in mother's blood tend to cross placenta. These EDCs have been reported to cause changes in expression levels of certain genes, immunogenic factors and non-coding RNAs such as micro RNA (miRNA) and long non-coding RNA (lncRNA) leading to placental stress. We hypothesize that these changes in placenta occur in a sexually dimorphic manner as a result of interaction between EDC exposure and fetal sex. Therefore, we propose that the ability of placenta to respond and buffer EDC exposure depends on fetal sex and, hence the EDC associated disease susceptibility of one sex differs from the other.
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Lejonklou MH, Christiansen S, Örberg J, Shen L, Larsson S, Boberg J, Hass U, Lind PM. Low-dose developmental exposure to bisphenol A alters the femoral bone geometry in wistar rats. Chemosphere 2016; 164:339-346. [PMID: 27592323 DOI: 10.1016/j.chemosphere.2016.08.114] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/22/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Bisphenol A (BPA) is a chemical produced in large volumes for use in manufacturing of consumer products and industrial applications, and an endocrine disruptor known to affect several hormonal systems. Bone produces hormones and is additionally a sensitive hormone target tissue, and is thus potentially sensitive to low doses of endocrine disruptors such as BPA, especially during development. METHODS 110 pregnant Wistar rats were gavaged with 0; 25 μg; 250 μg; 5000 μg or 50,000 μg BPA/kg bodyweight (bw)/day from gestational day 7 until weaning at postnatal day 22. The three-month-old offspring were sacrificed and right femurs collected for length measurements, geometrical measurements by peripheral quantitative computed tomography (pQCT), as well as for analyses of biomechanical properties using the three-point-bending method. RESULTS The femur was elongated in female offspring of dams exposed to 25 or 5000 μg BPA/kg bw/day (1.8% and 2.1%, respectively), and increased cortical thickness (4.7%) was observed in male offspring of dams exposed to 25 μg BPA/kg bw/day, compared to controls (p < 0.005). The biomechanical properties of the bone were not significantly altered. CONCLUSIONS In utero and lactational exposure to the lowest BPA dose used in this study altered femoral geometry in both male and female offspring. This was observed at 25 μg BPA/kg bw/day, a dose lower than the Human Equivalent Dose (HED) applied by EFSA to set a temporary TDI (609 μg BPA/kg bw/day), and far lower than the No-Observed-Adverse-Effect-Level (NOAEL) (5000 μg BPA/kg bw/day) on which the US FDA TDI is based.
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Affiliation(s)
- M H Lejonklou
- Department of Medical Sciences, Occupational and Environmental Medicine, Box 256, Uppsala University, SE-751 85 Uppsala, Sweden.
| | - S Christiansen
- Division of Diet, Disease Prevention and Toxicology, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - J Örberg
- Department of Environmental Toxicology, Evolutionary Biology Centre, Box 256, Uppsala University, SE-75105 Uppsala, Sweden
| | - L Shen
- Department of Medical Sciences, Occupational and Environmental Medicine, Box 256, Uppsala University, SE-751 85 Uppsala, Sweden
| | - S Larsson
- Department of Surgical Sciences, Section of Orthopedics, Box 256, Uppsala University, SE-75185 Uppsala, Sweden
| | - J Boberg
- Division of Diet, Disease Prevention and Toxicology, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - U Hass
- Division of Diet, Disease Prevention and Toxicology, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - P M Lind
- Department of Medical Sciences, Occupational and Environmental Medicine, Box 256, Uppsala University, SE-751 85 Uppsala, Sweden
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Xu G, Ma S, Tang L, Sun R, Xiang J, Xu B, Bao Y, Wu M. Occurrence, fate, and risk assessment of selected endocrine disrupting chemicals in wastewater treatment plants and receiving river of Shanghai, China. Environ Sci Pollut Res Int 2016; 23:25442-25450. [PMID: 27699660 DOI: 10.1007/s11356-016-7669-y] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/09/2016] [Indexed: 06/06/2023]
Abstract
The occurrence and fate of five endocrine disrupting chemicals (EDCs), including nonylphenol (NP), 4-tert-octylphenol (4-t-OP), 4-tert-butylphenol (4-t-BP), bisphenol A (BPA) and norethindrone (NET) was investigated in four wastewater treatment plants (WWTPs) and receiving river (Suzhou River and Yangtze River) of Shanghai. Selected EDCs in WWTPs influents ranged from 1.02 to 3560 ng L-1, which dominated by NP and BPA. Target compounds detected in effluents were from N.D. to 1136 ng L-1, with NP as most prevalent. The removal rates of target compounds varied from negative of NET to 99 % of BPA. Except of NET, efficiently removal rates (>70 %) were observed in WWTPs. Biological treatment was the major removal stage of selected EDCs in WWTPs. Furthermore, the selected EDCs were detected from N.D. to 424 ng L-1 in receiving river. The correlation analysis suggested EDCs pollution in receiving river might be mainly contributed by WWTPs effluents. The risk quotient of NP (RQ > 1) was higher than any other pollutants, indicating its relatively higher potential risk for the aquatic organism. These results will provide significant background data to future EDCs pollution control and management in Shanghai, China.
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Affiliation(s)
- Gang Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China.
| | - Sihan Ma
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Liang Tang
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Rui Sun
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Jiajia Xiang
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Bentuo Xu
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China
| | - Yangyang Bao
- Shanghai Pudong New Area Environmental Monitoring Station, Shanghai, China
| | - Minghong Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shangda Road 99, Shanghai, 200444, China.
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Dogan S, Simsek T. Possible relationship between endocrine disrupting chemicals and hormone dependent gynecologic cancers. Med Hypotheses 2016; 92:84-7. [PMID: 27241264 DOI: 10.1016/j.mehy.2016.04.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 04/24/2016] [Indexed: 01/29/2023]
Abstract
The effects of the natural and synthetic estrogens have been studied for a long time but the data regarding estrogen related chemicals (endocrine disrupting chemicals, EDCs) and their effects on reproductive system are scarce. EDCs are hormone like agents that are readily present in the environment, which may alter the endocrine system of humans and animals. Approximately 800 chemicals are known or suspected to have the potential to function as EDC. Potential role of EDCs on reproductive disease has gained attention in medical literature in recent years. We hypothesize that exposure to low doses of EDCs in a chronic manner could cause hormone dependent genital cancers including ovarian and endometrial cancer. Long term exposure to low concentrations of EDCs may exert potentiation effect with each other and even with endogenous estrogens and could inhibit enzymes responsible for estrogen metabolism. Exposure time to these EDCs is essential as we have seen from Diethylstilbestrol experience. Dose-response curves of EDCs are also unpredictable. Hence mode of action of EDCs are more complex than previously thought. In the light of these controversies lower doses of EDCs in long term exposure is not harmless. Possibility of this relationship and this hypothesis merit further investigation especially through in vivo studies that could better show the realistic environmental exposure. With the confirmation of our hypothesis, possible EDCs could be identified and eliminated from general use as a public health measure.
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Affiliation(s)
- Selen Dogan
- Department of Obstetrics and Gynecology, Gynecologic Oncologic Unit, Akdeniz University, Faculty of Medicine, Antalya, Turkey.
| | - Tayup Simsek
- Department of Obstetrics and Gynecology, Gynecologic Oncologic Unit, Akdeniz University, Faculty of Medicine, Antalya, Turkey
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Abstract
Breast and uterine cancer are the most frequent female gender related neoplasms whose growth is mostly estrogen dependent. Therefore, any EDC exhibiting estrogenic effects may increase the risk of these two malignancies. This review focuses on the potential role of EDCs with estrogenic potential on the risk of breast and uterine neoplasms but also points to the possible role of the exposure to EDCs in the pathogenesis of ovarian and cervical cancer. It also underlines the necessity of informing the public about the presence of EDCs in common consumer products, their detrimental health effects and methods of reducing the exposure risk.
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Affiliation(s)
- Dominik Rachoń
- Department of Clinical and Experimental Endocrinology, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland.
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He D, Ye X, Xiao Y, Zhao N, Long J, Zhang P, Fan Y, Ding S, Jin X, Tian C, Xu S, Ying C. Dietary exposure to endocrine disrupting chemicals in metropolitan population from China: a risk assessment based on probabilistic approach. Chemosphere 2015; 139:2-8. [PMID: 26025473 DOI: 10.1016/j.chemosphere.2015.05.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [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: 03/29/2014] [Revised: 04/16/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
The intake of contaminated foods is an important exposure pathway for endocrine disrupting chemicals (EDCs). However, data on the occurrence of EDCs in foodstuffs are sporadic and the resultant risk of co-exposure is rarely concerned. In this study, 450 food samples representing 7 food categories (mainly raw and fresh food), collected from three geographic cities in China, were analyzed for eight EDCs using high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Besides estrone (E1), other EDCs including diethylstilbestrol (DES), nonylphenol (NP), bisphenol A (BPA), octylphenol (OP), 17β-estradiol (E2), 17α-ethinylestradiol (EE2), and estriol (E3) were ubiquitous in food. Dose-dependent relationships were found between NP and EE2 (r=0.196, p<0.05), BPA (r=0.391, p<0.05). Moreover, there existed a correspondencebetween EDCs congener and food category. Based on the obtained database of EDCs concentration combined with local food consumption, dietary EDCs exposure was estimated using the Monte Carlo Risk Assessment (MCRA) system. The 50th and 95th percentile exposure of any EDCs isomer were far below the tolerable daily intake (TDI) value identically. However, the sum of 17β-estradiol equivalents (∑EEQs) exposure in population was considerably larger than the value of exposure to E2, which implied the underlying resultant risk of multiple EDCs in food should be concern. In conclusion, co-exposure via food consumption should be considered rather than individual EDCs during health risk evaluation.
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Affiliation(s)
- Dongliang He
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Preventive medicine, School of Public Health, University of South China, Hengyang 421001, China.
| | - Xiaolei Ye
- School of Environmental Science and Public Health, Wenzhou Medical University, Wenzhou 325000, China.
| | - Yonghua Xiao
- Wuhan Center for Disease Control and Prevention, Wuhan 430015, China.
| | - Nana Zhao
- School of Environmental Science and Public Health, Wenzhou Medical University, Wenzhou 325000, China.
| | - Jia Long
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Piwei Zhang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Ying Fan
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Shibin Ding
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xin Jin
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Chong Tian
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Shunqing Xu
- Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Chenjiang Ying
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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47
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Fei YH, Xing B, Li XY. Changes in the adsorption of bisphenol A, 17 α-ethinyl estradiol, and phenanthrene on marine sediment in Hong Kong in relation to the simulated sediment organic matter decomposition. Environ Pollut 2014; 192:139-146. [PMID: 24929636 DOI: 10.1016/j.envpol.2014.04.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/27/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
Marine sediment with an input of particulate organic matter was incubated to simulate the early aging process. On the sediment after various incubation periods, adsorption and desorption tests were conducted for three selected organic micropollutants: bisphenol A (BPA), 17α-ethinyl estradiol (EE2), and phenanthrene (Phe). The results showed significant sediment organic matter (SOM) decomposition during the incubation, and the SOM decay and transformation had a profound impact on the adsorption of organic compounds by the sediment. An increasing-delay-increasing pattern of change was observed for the SOM normalized partition coefficients of EE2 and Phe. This change was accordant to the transformation of SOM from labile organics into active biomass and its microbial products, and finally into more condensed and humic-like substances. Comparison between the 3 model micropollutants indicates that the chemical adsorption behaviors were mostly affected by their hydrophobic properties.
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Affiliation(s)
- Ying-heng Fei
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China; Guangdong Key Laboratory of Membrane Materials and Membrane Separation, Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Guangzhou, China
| | - Baoshan Xing
- Department of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, MA, USA
| | - Xiao-yan Li
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China.
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48
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Yang J, Li H, Ran Y, Chan K. Distribution and bioconcentration of endocrine disrupting chemicals in surface water and fish bile of the Pearl River Delta, South China. Chemosphere 2014; 107:439-446. [PMID: 24582358 DOI: 10.1016/j.chemosphere.2014.01.048] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 01/10/2014] [Accepted: 01/13/2014] [Indexed: 05/20/2023]
Abstract
The distribution and bioconcentration of endocrine disrupting chemicals (EDCs) in water, algae, and wild carp bile of the Pearl River Delta (PRD), South China were investigated. 4-tert octylphenol (OP), 4-nonylphenol (NP), and bisphenol A (BPA) (unit, ng L(-1)) in water were in the ranges of 1-14, 117-865, and 4-377, those (ng g(-1) dry weight) in algae were in the ranges of 2-13, 53-282, and 16-94, and those (ng g(-1)) in carp bile were in the ranges of 14-39, 950-4648, 70-1020, respectively. Estrone (E1) and 17α-ethinylestradiol (EE2) in water ranged from <LOQ to 1.58 ng L(-1) and from <LOQ to 3.43 ng L(-1), respectively. In bile and algae, E1 ranged from nd to 30 ng g(-1), but EE2 was not detected. The E2 activity equivalents (EEQs) ranged from 1.20 to 10.97 ng g(-1) in carp bile and from 0.07 to 8.06 ng L(-1) in water. The EEQs in carp bile were significantly related to those in water, illustrating that occurrence of EDCs in carp bile can reflect that in ambient water in the PRD region. The bioconcentration factors (BCF, L kg(-1)) of OP, NP, BPA, and E1 in algae were in the ranges of 482-7251, 131-740, 2846-12979, and undetectable, respectively, and those in carp bile were in the ranges of 1500-12960, 1648-11137, 3583-14178, and 13208-39623, respectively. The phenolic EDCs can be accumulated by wild carp bile and algae in the investigated aquatic ecosystems, which is also affected by the degree of the eutrophication. This study for the first time reported EDCs in carp bile and algae collected from the PRD, China.
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Affiliation(s)
- Juan Yang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haiyan Li
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Ran
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Kingming Chan
- Environmental Science Program, School of Life Sciences, Chinese University of Hong Kong, Sha Tin, NT, Hong Kong
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49
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Liscio C, Abdul-Sada A, Al-Salhi R, Ramsey MH, Hill EM. Methodology for profiling anti-androgen mixtures in river water using multiple passive samplers and bioassay-directed analyses. Water Res 2014; 57:258-269. [PMID: 24726995 DOI: 10.1016/j.watres.2014.03.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 09/01/2013] [Revised: 02/18/2014] [Accepted: 03/17/2014] [Indexed: 06/03/2023]
Abstract
The identification of endocrine disrupting chemicals in surface waters is challenging as they comprise a variety of structures which are often present at nanomolar concentrations and are temporally highly variable. Hence, a holistic passive sampling approach can be an efficient technique to overcome these limitations. In this study, a combination of 4 different passive samplers used for sampling polar (POCIS Apharm and POCIS Bpesticide) and apolar compounds (LDPE low density polyethylene membranes, and silicone strips) were used to profile anti-androgenic activity present in river water contaminated by a wastewater effluent. Extracts of passive samplers were analysed using HPLC fractionation in combination with an in vitro androgen receptor antagonist screen (YAS). Anti-androgenic activity was detected in extracts from silicone strips and POCIS A/B at (mean ± SD) 1.1 ± 0.1 and 0.55 ± 0.06 mg flutamide standard equivalents/sampler respectively, but was not detected in LDPE sampler extracts. POCIS samplers revealed higher selectivity for more polar anti-androgenic HPLC fractions compared with silicone strips. Over 31 contaminants were identified which showed inhibition of YAS activity and were potential anti-androgens, and these included fungicides, germicides, flame retardants and pharmaceuticals. This study reveals that passive sampling, using a combination of POCIS A and silicone samplers, is a promising tool for screening complex mixture of anti-androgenic contaminants present in surface waters, with the potential to identify new and emerging structures with endocrine disrupting activity.
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Affiliation(s)
- Camilla Liscio
- University of Sussex, School of Life Sciences, BN1 9QG Brighton, UK
| | - Alaa Abdul-Sada
- University of Sussex, School of Life Sciences, BN1 9QG Brighton, UK
| | - Raghad Al-Salhi
- University of Sussex, School of Life Sciences, BN1 9QG Brighton, UK
| | - Michael H Ramsey
- University of Sussex, School of Life Sciences, BN1 9QG Brighton, UK
| | - Elizabeth M Hill
- University of Sussex, School of Life Sciences, BN1 9QG Brighton, UK.
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50
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Roelofs MJE, Temming AR, Piersma AH, van den Berg M, van Duursen MBM. Conazole fungicides inhibit Leydig cell testosterone secretion and androgen receptor activation in vitro. Toxicol Rep 2014; 1:271-283. [PMID: 28962244 PMCID: PMC5598417 DOI: 10.1016/j.toxrep.2014.05.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/12/2014] [Accepted: 05/12/2014] [Indexed: 11/23/2022] Open
Abstract
Conazole fungicides are widely used in agriculture despite their suspected endocrine disrupting properties. In this study, the potential (anti-)androgenic effects of ten conazoles were assessed and mutually compared with existing data. Effects of cyproconazole (CYPRO), fluconazole (FLUC), flusilazole (FLUS), hexaconazole (HEXA), myconazole (MYC), penconazole (PEN), prochloraz (PRO), tebuconazole (TEBU), triadimefon (TRIA), and triticonazole (TRIT) were examined using murine Leydig (MA-10) cells and human T47D-ARE cells stably transfected with an androgen responsive element and a firefly luciferase reporter gene. Six conazoles caused a decrease in basal testosterone (T) secretion by MA-10 cells varying from 61% up to 12% compared to vehicle-treated control. T secretion was concentration-dependently inhibited after exposure of MA-10 cells to several concentrations of FLUS (IC50 = 12.4 μM) or TEBU (IC50 = 2.4 μM) in combination with LH. The expression of steroidogenic and cholesterol biosynthesis genes was not changed by conazole exposure. Also, there were no changes in reactive oxygen species (ROS) formation that could explain the altered T secretion after exposure to conazoles. Nine conazoles decreased T-induced AR activation (IC50s ranging from 10.7 to 71.5 μM) and effect potencies (REPs) were calculated relative to the known AR antagonist flutamide (FLUT). FLUC had no effect on AR activation by T. FLUS was the most potent (REP = 3.61) and MYC the least potent (REP = 0.03) AR antagonist. All other conazoles had a comparable REP from 0.12 to 0.38. Our results show distinct in vitro anti-androgenic effects of several conazole fungicides arising from two mechanisms: inhibition of T secretion and AR antagonism, suggesting potential testicular toxic effects. These effects warrant further mechanistic investigation and clearly show the need for accurate exposure data in order to perform proper (human) risk assessment of this class of compounds.
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Key Words
- 17β-HSD3, 17β-hydroxysteroid dehydrogenase type 3
- 3β-HSD1, 3β-hydroxysteroid dehydrogenase type 1
- AR, androgen receptor
- Androgen receptor (AR)
- BMR, benchmark response
- CHO cells, Chinese hamster ovary cells
- CYP19, cytochrome P450 enzyme 19 (aromatase)
- CYP51, cytochrome P450 enzyme 51/lanosterol 14α-demethylase
- CYPRO, cyproconazole
- Conazole fungicides
- Cyp11A1, cytochrome P450 enzyme 11A
- Cyp17, cytochrome P450 enzyme 17
- Cyproconazole (PubChem CID: 86132)
- DMEM, Dulbecco's Modified Eagle Medium
- EC50, half maximal effective concentration
- EDCs, endocrine disrupting chemicals
- Endocrine disrupting chemicals (EDCs)
- FLUC, fluconazole
- FLUS, flusilazole
- FLUT, flutamide
- FP, forward primer
- FSH(R), follicle-stimulating hormone (receptor)
- Fluconazole (PubChem CID: 3365)
- Flusilazole (PubChem CID: 73675)
- H295R, human adrenocortical carcinoma cells
- HEXA, hexaconazole
- HMG-CoA red, HMG-CoA reductase
- HSD(s), hydroxysteroid dehydrogenase(s)
- Hexaconazole (PubChem CID: 66461)
- IC50, half maximal inhibitory concentration
- LH(R), luteinizing hormone (receptor)
- MA-10 Leydig cells
- MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
- MYC, myclobutanil
- Myclobutanil (PubChem CID: 6336)
- NCBI, National Center for Biotechnology Information
- PBS, phosphate-buffered saline
- PEN, penconazole
- PRO, prochloraz
- Penconazole (PubChem CID: 91693)
- Por, cytochrome P450 oxidoreductase
- Prochloraz (PubChem CID: 73665)
- REP, relative effect potency
- RIA, radioimmunoassay
- ROS, reactive oxygen species
- RP, reverse primer
- RT-qPCR, real time quantitative polymerase chain reaction
- Spermatogenesis
- StAR, steroidogenic acute regulatory protein
- T, testosterone
- TEBU, tebuconazole
- TRIA, triadimefon
- TRIT, triticonazole
- Tebuconazole (PubChem CID: 86102)
- Testosterone (T)
- Triadimefon (PubChem CID: 39385)
- Triticonazole (PubChem CID: 6537961)
- cAMP, 8-bromoadenosine 3′,5′-cyclic monophosphate
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Affiliation(s)
- Maarke J E Roelofs
- Endocrine Toxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands.,Center for Health Protection, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
| | - A Roberto Temming
- Endocrine Toxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands
| | - Aldert H Piersma
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands.,Endocrine Toxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands
| | - Martin van den Berg
- Endocrine Toxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands
| | - Majorie B M van Duursen
- Endocrine Toxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, P.O. Box 80.177, NL-3508 TD Utrecht, The Netherlands
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