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Yang Y, Xu L, Lei B, Huang Y, Yu M. Effects of trichlorobisphenol A on the expression of proteins and genes associated with puberty initiation in GT1-7 cells and the relevant molecular mechanism. Food Chem Toxicol 2024; 183:114258. [PMID: 38040238 DOI: 10.1016/j.fct.2023.114258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
This study evaluated the effects of Cl3BPA on kisspeptin-G-protein coupled receptor 54 (GPR54)/gonadotropin-releasing hormone (GnRH) (KGG) signals and analyzed the roles of estrogen receptor alpha (ERɑ) and G-protein coupled estrogen receptor 1 (GPER1) in regulating KGG signals. The results showed that Cl3BPA at 50 μM increased the levels of intracellular reactive oxygen species (ROS) and GnRH, upregulated the protein levels of kisspeptin and the expression of fshr, lhr and gnrh1 genes related to KGG in GT1-7 cells. In addition, 50 μM Cl3BPA significantly upregulated the phosphorylation of extracellular regulated protein kinases 1/2 (Erk1/2), the protein levels of GPER1 and the expression of the gper1 as well as the most target genes associated with mitogen-activated protein kinase (MAPK)/Erk1/2 pathways. Specific signal inhibitor experiments found that Cl3BPA activated KGG signals by activating the GPER1-mediated MAPK/Erk1/2 signaling pathway at the mRNA level. A docking test further confirmed the interactions between Cl3BPA and GPER1. The findings suggest that Cl3BPA might induce precocious puberty by increasing GnRH secretion together with KGG signaling upregulation, which is driven by GPER1-mediated signaling pathway. By comparison, ClxBPAs with fewer chlorine atoms had more obvious effects on the expression of proteins and partial genes related to KGG signals in GT1-7 cells.
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Affiliation(s)
- Yingxin Yang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Lanbing Xu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Bingli Lei
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China.
| | - Yaoyao Huang
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
| | - Mengjie Yu
- Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, PR China
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2
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Ramya Ranjan Nayak SP, Boopathi S, Haridevamuthu B, Arockiaraj J. Toxic ties: Unraveling the complex relationship between endocrine disrupting chemicals and chronic kidney disease. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 338:122686. [PMID: 37802289 DOI: 10.1016/j.envpol.2023.122686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/01/2023] [Accepted: 10/02/2023] [Indexed: 10/08/2023]
Abstract
Environmental pollution is inherently linked to several metabolic diseases and high mortality. The kidney is more susceptible to environmental pollutants compared to other organs as it is involved in concentrating and filtering most of these toxins. Few epidemiological studies revealed the intrinsic relationship between exposure to Endocrine Disrupting Chemicals (EDCs) and CKD development. Though EDCs have the potential to cause severe pathologies, the specific molecular mechanisms by which they accelerate the progression of CKD remain elusive. In particular, our understanding of how pollutants affect the progression of chronic kidney disease (CKD) through the gut-kidney axis is currently limited. EDCs modulate the composition and function of the gut microbial community and favor the colonization of harmful gut pathogens. This alteration leads to an overproduction of uremic toxin and membrane vesicles. These vesicles carry several inflammatory molecules that exacerbate inflammation and renal tissue damage and aggravate the progression of CKD. Several experimental studies have revealed potential pathways by which uremic toxin further aggravates CKD. These include the induction of membrane vesicle production in host cells, which can trigger inflammatory pathways and insulin resistance. Reciprocally, CKD can also modulate gut bacterial composition that might further aggravate CKD condition. Thus, EDCs pose a significant threat to kidney health and the global CKD burden. Understanding this complicated issue necessitates multidisciplinary initiatives such as strict environmental controls, public awareness, and the development of novel therapeutic strategies targeting EDCs.
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Affiliation(s)
- S P Ramya Ranjan Nayak
- Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - Seenivasan Boopathi
- Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - B Haridevamuthu
- Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India
| | - Jesu Arockiaraj
- Department of Biotechnology, Faculty of Science and Humanities, SRM Institute of Science and Technology, Kattankulathur, 603203, Chengalpattu District, Tamil Nadu, India.
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3
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Liang Y, Gong Y, Jiang Q, Yu Y, Zhang J. Environmental endocrine disruptors and pregnane X receptor action: A review. Food Chem Toxicol 2023; 179:113976. [PMID: 37532173 DOI: 10.1016/j.fct.2023.113976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/11/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
The pregnane X receptor (PXR) is a kind of orphan nuclear receptor activated by a series of ligands. Environmental endocrine disruptors (EEDs) are a wide class of molecules present in the environment that are suspected to have adverse effects on the endocrine system by interfering with the synthesis, transport, degradation, or action of endogenous hormones. Since EEDs may modulate human/rodent PXR, this review aims to summarize EEDs as PXR modulators, including agonists and antagonists. The modular structure of PXR is also described, interestingly, the pharmacology of PXR have been confirmed to vary among different species. Furthermore, PXR play a key role in the regulation of endocrine function. Endocrine disruption of EEDs via PXR and its related pathways are systematically summarized. In brief, this review may provide a way to understand the roles of EEDs in interaction with the nuclear receptors (such as PXR) and the related pathways.
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Affiliation(s)
- Yuan Liang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Yiyao Gong
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Qiuyan Jiang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Yifan Yu
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Jie Zhang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China.
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4
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Evans NP, Bellingham M, Elcombe CS, Ghasemzadeh-Hasankolaei M, Lea RG, Sinclair KD, Padmanabhan V. Sexually dimorphic impact of preconceptional and gestational exposure to a real-life environmental chemical mixture (biosolids) on offspring growth dynamics and puberty in sheep. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 102:104257. [PMID: 37659607 DOI: 10.1016/j.etap.2023.104257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
Humans are ubiquitously exposed to complex mixtures of environmental chemicals (ECs). This study characterised changes in post-natal and peripubertal growth, and the activation of the reproductive axis, in male and female offspring of sheep exposed to a translationally relevant EC mixture (in biosolids), during pregnancy. Birthweight in both sexes was unaffected by gestational biosolids exposure. In contrast to females (unaffected), bodyweight in biosolids males was significantly lower than controls across the peripubertal period, however, they exhibited catch-up growth eventually surpassing controls. Despite weighing less, testosterone concentrations were elevated earlier, indicative of early puberty in the biosolids males. This contrasted with females in which the mean date of puberty (first progesterone cycle) was delayed. These results demonstrate that developmental EC-mixture exposure has sexually dimorphic effects on growth, puberty and the relationship between body size and puberty. Such programmed metabolic/reproductive effects could have significant impacts on human health and wellbeing.
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Affiliation(s)
- Neil P Evans
- School of Biodiversity One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK.
| | - Michelle Bellingham
- School of Biodiversity One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Christopher S Elcombe
- School of Biodiversity One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Mohammad Ghasemzadeh-Hasankolaei
- School of Biodiversity One Health and Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, UK
| | - Richard G Lea
- University of Nottingham, Sutton Bonington Campus, Loughborough, UK
| | - Kevin D Sinclair
- University of Nottingham, Sutton Bonington Campus, Loughborough, UK
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5
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Zhan W, Yang H, Zhang J, Chen Q. Association between co-exposure to phenols and phthalates mixture and infertility risk in women. ENVIRONMENTAL RESEARCH 2022; 215:114244. [PMID: 36058272 DOI: 10.1016/j.envres.2022.114244] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/09/2022] [Accepted: 08/29/2022] [Indexed: 05/26/2023]
Abstract
BACKGROUND Exposure to phenols and phthalates has been separately linked to increased risks of infertility in women of reproductive age. However, the combined effect of phenols and phthalates exposure on infertility has not been explored. METHODS Data from the National Health and Nutrition Examination Surveys (NHANES) were used. A total of 857 women of reproductive age (18-45 years) with available information on urinary phenol and phthalate metabolites, reproductive questionnaires, and covariates were included in the present study. The definition of infertility was based on self-reports. Multivariable logistic regression, principal component analysis (PCA), and Bayesian kernel machine regression (BKMR) with stratified variable selection were applied to determine what associations were found between combined exposure to these mixtures and risk of infertility among women of reproductive age. RESULTS After adjusting for potential confounders, bisphenol A (BPA), mono(3-carboxypropyl) phthalate (MCPP) and four di(2-ethylhexyl) phthalate (DEHP) metabolites [mono(2-ethylhexyl) phthalate (MEHP), mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), mono(2-ethyl-5-oxohexyl) phthalate (MEOHP) and mono(2-ethyl-5-carboxypentyl) phthalate (MECPP)] were positively associated with infertility. PCA revealed that the DEHP-BPA factor's PC score was significantly positively related to the likelihood of infertility [adjusted odds ratio (aOR) = 1.45; 1.08, 1.82]. The DEHP-BPA component consistently had the highest group posterior inclusion probability (PIP) in BKMR models. The BKMR model also found that MEOHP, MEHHP, and BPA were positively associated with infertility risk when the remaining combination concentrations were held at their median values. In addition, we observed that the probability of infertility increased dramatically as the quantiles of total mixture concentration increased. CONCLUSION Our findings indicate that a combination of phenol and phthalate metabolites is linked to infertility among reproductive-age women. BPA and DEHP, in particular, are significantly related to the risk of infertility.
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Affiliation(s)
- Wenqiang Zhan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hua Yang
- Hainan Women and Children's Medical Center, Haikou, Hainan, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Chen
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Rojas-Hucks S, Rodriguez-Jorquera IA, Nimpstch J, Bahamonde P, Benavides JA, Chiang G, Pulgar J, Galbán-Malagón CJ. South American National Contributions to Knowledge of the Effects of Endocrine Disrupting Chemicals in Wild Animals: Current and Future Directions. TOXICS 2022; 10:toxics10120735. [PMID: 36548568 PMCID: PMC9781241 DOI: 10.3390/toxics10120735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 05/28/2023]
Abstract
Human pressure due to industrial and agricultural development has resulted in a biodiversity crisis. Environmental pollution is one of its drivers, including contamination of wildlife by chemicals emitted into the air, soil, and water. Chemicals released into the environment, even at low concentrations, may pose a negative effect on organisms. These chemicals might modify the synthesis, metabolism, and mode of action of hormones. This can lead to failures in reproduction, growth, and development of organisms potentially impacting their fitness. In this review, we focused on assessing the current knowledge on concentrations and possible effects of endocrine disruptor chemicals (metals, persistent organic pollutants, and others) in studies performed in South America, with findings at reproductive and thyroid levels. Our literature search revealed that most studies have focused on measuring the concentrations of compounds that act as endocrine disruptors in animals at the systemic level. However, few studies have evaluated the effects at a reproductive level, while information at thyroid disorders is scarce. Most studies have been conducted in fish by researchers from Brazil, Argentina, Chile, and Colombia. Comparison of results across studies is difficult due to the lack of standardization of units in the reported data. Future studies should prioritize research on emergent contaminants, evaluate effects on native species and the use of current available methods such as the OMICs. Additionally, there is a primary focus on organisms related to aquatic environments, and those inhabiting terrestrial environments are scarce or nonexistent. Finally, we highlight a lack of funding at a national level in the reviewed topic that may influence the observed low scientific productivity in several countries, which is often negatively associated with their percentage of protected areas.
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Affiliation(s)
- Sylvia Rojas-Hucks
- Departamento de Ecología y Biodiversidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
| | | | - Jorge Nimpstch
- Facultad de Ciencias, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Paulina Bahamonde
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados—HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso 2360004, Chile
- Millennium Nucleus of Austral Invasive Salmonids (INVASAL), Concepción 4070386, Chile
- Cape Horn International Center (CHIC), Universidad de Magallanes, Punta Arenas 6210427, Chile
| | - Julio A. Benavides
- Doctorado en Medicina de la Conservación, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
- Centro de Investigación para la Sustentabilidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
- MIVEGEC, IRD, CNRS, Université de Montpellier, 34090 Montpellier, France
| | - Gustavo Chiang
- Departamento de Ecología y Biodiversidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
- Centro de Investigación para la Sustentabilidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
| | - José Pulgar
- Departamento de Ecología y Biodiversidad, Facultad Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370134, Chile
| | - Cristóbal J. Galbán-Malagón
- GEMA, Center for Genomics, Ecology & Environment, Universidad Mayor, Camino la Pirámide 5750, Huechuraba, Santiago 8580000, Chile
- Institute of Environment, Florida International University, University Park, Miami, FL 33199, USA
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7
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Solano F, Hernández E, Juárez-Rojas L, Rojas-Maya S, López G, Romero C, Casillas F, Betancourt M, López A, Heidari R, Ommati MM, Retana-Márquez S. Reproductive disruption in adult female and male rats prenatally exposed to mesquite pod extract or daidzein. Reprod Biol 2022; 22:100683. [PMID: 35932513 DOI: 10.1016/j.repbio.2022.100683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/29/2022] [Accepted: 07/30/2022] [Indexed: 11/28/2022]
Abstract
Phytoestrogens are considered to be endocrine disruptors, since they can alter the endocrine system, thus disturbing many reproductive events. The intake of diets containing a high content of phytoestrogens has increased worldwide in human populations and in domestic animals. Phytoestrogens in maternal blood can pass through the placenta to the fetus in high amounts and can have long-term organizational effects. Mesquite (Prosopis sp) is a leguminous plant widely used to feed several livestock species, and is also used in the human diet. In this study we assessed the effects of exposure to mesquite pod extract during the periconception and pregnancy periods on the reproduction of male and female descendants. The females of three experimental groups received one of the following treatments: 1) vehicle injection; 2) mesquite pod extract or 3) the isoflavone daidzein during the periconception and pregnancy periods. Estrous cyclicity, sexual behavior and hormones, as well as uterine and vaginal epithelia were evaluated in the female descendants. In the males, sexual behavior and hormones, apoptosis in testicular cells and sperm quality were evaluated. In females the following was observed: alterations in estrous cycles, decreased sexual behavior, estradiol and progesterone levels, increased uterine and vaginal epithelia. In males, we observed a decrease in sexual behavior, testosterone and sperm quality, and apoptosis increased in testicular cells. All these effects were similar to those caused by daidzein. These results indicate that prenatal exposure to mesquite pod extract or daidzein, administered to females before and during pregnancy, can disrupt normal organizational-activational programming of reproductive physiology in female and male descendants.
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Affiliation(s)
- Floriberta Solano
- Masters in Biology of Animal Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Eunice Hernández
- Masters in Biology of Animal Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Lizbeth Juárez-Rojas
- Department of Biology of Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Susana Rojas-Maya
- Department of Neuroendocrinology of Reproductive Behavior, Veterinary Faculty, National Autonomous University of Mexico, Mexico
| | - Gabriela López
- Department of Biology of Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Carlos Romero
- Department of Biology of Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Fahiel Casillas
- Department of Biology of Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Miguel Betancourt
- Department of Health Sciences, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Alma López
- Department of Health Sciences, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico
| | - Reza Heidari
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran
| | - Mohammad Mehdi Ommati
- College of Life Sciences, Shanxi Agricultural University, Taigu, Shanxi 030801, People's Republic of China; Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran
| | - Socorro Retana-Márquez
- Department of Biology of Reproduction, Autonomous Metropolitan University, Campus Iztapalapa, México City, Mexico.
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8
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Soloperto S, Nihoul F, Olivier S, Poret A, Couteau J, Halm-Lemeille MP, Danger JM, Aroua S. Effects of 17α-Ethinylestradiol (EE2) exposure during early life development on the gonadotropic axis ontogenesis of the European sea bass, Dicentrarchus labrax. Comp Biochem Physiol A Mol Integr Physiol 2022; 271:111260. [PMID: 35724955 DOI: 10.1016/j.cbpa.2022.111260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/27/2022] [Accepted: 06/14/2022] [Indexed: 10/18/2022]
Abstract
Exposure of young organisms to oestrogenic endocrine disrupting chemicals (EDCs) can elicit adverse effects, particularly on the reproductive function. In fish, as in other vertebrates, reproduction is controlled by the neuroendocrine gonadotropic axis, whose components are mainly regulated by sex steroids and may then be targets for EDCs. In the present study, we investigated the effects of a xenoestrogen exposure on the ontogenesis of the gonadotropic axis in European sea bass. After exposure of hatching larvae for 8 days to 17α-ethinylestradiol (EE2) (0.5 nM and 50 nM), gene expression for kisspeptins (kiss1, kiss2), gonadotropin-releasing hormones (gnrh1, gnrh2, gnrh3), gonadotropin beta subunits (lhβ and fshβ) and brain type aromatase (cyp19a1b) were measured using quantitative real-time PCR. Our results demonstrate that EE2 strongly stimulated the expression of brain type aromatase (cyp19a1b) in sea bass larvae. In addition, EE2 exposure also affected the mRNA levels of kiss1, gnrh1 and gnrh3 by inducing a downregulation of these genes during the early developmental stages, while no effect was seen in gnrh2, lhβ and fshβ. These results reinforce the idea that the larval development is a sensitive critical period in regard to endocrine disruption and that the gonadotropic axis in the developing sea bass is sensitive to xenoestrogen exposure.
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Affiliation(s)
- Sofia Soloperto
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France
| | - Florent Nihoul
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France
| | - Stéphanie Olivier
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France
| | - Agnès Poret
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France
| | | | | | - Jean-Michel Danger
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France
| | - Salima Aroua
- UMR-I 02 INERIS-URCA-ULH SEBIO, Normandie Univ, UNIHAVRE, FR CNRS 3730 Scale, Le Havre, France.
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9
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Prenatal Exposure to an EDC Mixture, NeuroMix: Effects on Brain, Behavior, and Stress Responsiveness in Rats. TOXICS 2022; 10:toxics10030122. [PMID: 35324748 PMCID: PMC8954446 DOI: 10.3390/toxics10030122] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/22/2022] [Accepted: 02/26/2022] [Indexed: 12/11/2022]
Abstract
Humans and wildlife are exposed to endocrine-disrupting chemicals (EDCs) throughout their lives. Environmental EDCs are implicated in a range of diseases/disorders with developmental origins, including neurodevelopment and behavior. EDCs are most often studied one by one; here, we assessed outcomes induced by a mixture designed to represent the real-world situation of multiple simultaneous exposures. The choice of EDCs, which we refer to as “NeuroMix,” was informed by evidence for neurobiological effects in single-compound studies and included bisphenols, phthalates, vinclozolin, and perfluorinated, polybrominated, and polychlorinated compounds. Pregnant Sprague Dawley rats were fed the NeuroMix or vehicle, and then offspring of both sexes were assessed for effects on postnatal development and behaviors and gene expression in the brain in adulthood. In order to determine whether early-life EDCs predisposed to subsequent vulnerability to postnatal life challenges, a subset of rats were also given a stress challenge in adolescence. Prenatal NeuroMix exposure decreased body weight and delayed puberty in males but not females. In adulthood, NeuroMix caused changes in anxiety-like, social, and mate preference behaviors only in females. Effects of stress were predominantly observed in males. Several interactions of NeuroMix and stress were found, especially for the mate preference behavior and gene expression in the brain. These findings provide novel insights into how two realistic environmental challenges lead to developmental and neurobehavioral deficits, both alone and in combination, in a sex-specific manner.
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10
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Transgenerational Effects of Prenatal Endocrine Disruption on Reproductive and Sociosexual Behaviors in Sprague Dawley Male and Female Rats. TOXICS 2022; 10:toxics10020047. [PMID: 35202233 PMCID: PMC8875130 DOI: 10.3390/toxics10020047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/14/2022] [Accepted: 01/14/2022] [Indexed: 12/15/2022]
Abstract
Endocrine-disrupting chemicals (EDCs) lead to endocrine and neurobehavioral changes, particularly due to developmental exposures during gestation and early life. Moreover, intergenerational and transgenerational phenotypic changes may be induced by germline exposure (F2) and epigenetic germline transmission (F3) generation, respectively. Here, we assessed reproductive and sociosexual behavioral outcomes of prenatal Aroclor 1221 (A1221), a lightly chlorinated mix of PCBs known to have weakly estrogenic mechanisms of action; estradiol benzoate (EB), a positive control; or vehicle (3% DMSO in sesame oil) in F1-, F2-, and F3-generation male and female rats. Treatment with EDCs was given on embryonic day (E) 16 and 18, and F1 offspring monitored for development and adult behavior. F2 offspring were generated by breeding with untreated rats, phenotyping of F2s was performed in adulthood, and the F3 generation were similarly produced and phenotyped. Although no effects of treatment were found on F1 or F3 development and physiology, in the F2 generation, body weight in males and uterine weight in females were increased by A1221. Mating behavior results in F1 and F2 generations showed that F1 A1221 females had a longer latency to lordosis. In males, the F2 generation showed decreased mount frequency in the EB group. In the F3 generation, numbers of ultrasonic vocalizations were decreased by EB in males, and by EB and A1221 when the sexes were combined. Finally, partner preference tests in the F3 generation revealed that naïve females preferred F3-EB over untreated males, and that naïve males preferred untreated over F3-EB or F3-A1221 males. As a whole, these results show that each generation has a unique, sex-specific behavioral phenotype due to direct or ancestral EDC exposure.
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11
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Fiolet T, Mahamat-Saleh Y, Frenoy P, Kvaskoff M, Romana Mancini F. Background exposure to polychlorinated biphenyls and all-cause, cancer-specific, and cardiovascular-specific mortality: A systematic review and meta-analysis. ENVIRONMENT INTERNATIONAL 2021; 154:106663. [PMID: 34082240 DOI: 10.1016/j.envint.2021.106663] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/08/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Polychlorinated biphenyls (PCBs) are a large family of man-made organic, ubiquitous, and persistent contaminants with endocrine-disrupting properties. PCBs have been associated with numerous adverse health effects and were classified as carcinogenic to humans, but their long-term impact on mortality risk in the general population is unknown. OBJECTIVE To conduct a systematic review and meta-analysis in order to assess whether background exposure levels of PCBs increase all-cause and cancer- and cardiovascular-specific mortality risk in the general population. METHODS We searched the Pubmed, Web of Science, Cochrane Library, and Embase databases for eligible studies up to 1st of January, 2021. We included cohort and nested-case control studies comparing the lowest vs. the highest background exposure level of PCBs in the general population and reporting data for all-cause mortality and/or cancer-/cardiovascular-specific mortality. Studies reporting occupational and accidental exposures were excluded. Random-effects meta-analysis was used to estimate summary relative risks (SRRs) and 95% confidence intervals (CIs). Heterogeneity across studies was assessed by I2 statistics, and publication bias both graphically and using Egger's and Begg's tests. Quality of included studies was assessed using the National Toxicology Program/Office of Health Assessment and Translation (NTP/OHAT). Confidence in the body of evidence and related level of evidence were assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) based on the NTP/OHAT framework. The protocol was registered in PROSPERO (CRD42020178079). RESULTS The initial search led to 2,132 articles. Eight prospective cohort studies met our inclusion criteria, leading to 72,852 participants including 17,805 deaths. Overall exposure to PCBs was not statistically significantly associated with all-cause mortality (SRR = 1.13, 95% CI = 0.90-1.41, n = 7 studies, low certainty); however, dietary exposure to PCBs was associated with an increased risk of cardiovascular-specific mortality (SRR = 1.38, 95% CI = 1.14-1.66, n = 3 studies, moderate certainty), while no association was found with cancer-specific mortality (SRR = 1.07, 95% CI = 0.72-1.59, n = 5 studies, low certainty). CONCLUSION Our meta-analysis suggests that background exposure to PCBs is associated with an increased risk of cardiovascular-specific mortality in the general population with a "moderate" level of evidence. These findings should be interpreted with caution given the small number of studies on mortality in the general population.
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Affiliation(s)
- Thibault Fiolet
- Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP UMR1018, F-94805 Villejuif, France
| | - Yahya Mahamat-Saleh
- Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP UMR1018, F-94805 Villejuif, France
| | - Pauline Frenoy
- Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP UMR1018, F-94805 Villejuif, France
| | - Marina Kvaskoff
- Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP UMR1018, F-94805 Villejuif, France
| | - Francesca Romana Mancini
- Paris-Saclay University, UVSQ, Inserm, Gustave Roussy, "Exposome and Heredity" Team, CESP UMR1018, F-94805 Villejuif, France.
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12
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Marinello WP, Patisaul HB. Endocrine disrupting chemicals (EDCs) and placental function: Impact on fetal brain development. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2021; 92:347-400. [PMID: 34452690 DOI: 10.1016/bs.apha.2021.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Pregnancy is a critical time of vulnerability for the development of the fetal brain. Exposure to environmental pollutants at any point in pregnancy can negatively impact many aspects of fetal development, especially the organization and differentiation of the brain. The placenta performs a variety of functions that can help protect the fetus and sustain brain development. However, disruption of any of these functions can have negative impacts on both the pregnancy outcome and fetal neurodevelopment. This review presents current understanding of how environmental exposures, specifically to endocrine disrupting chemicals (EDCs), interfere with placental function and, in turn, neurodevelopment. Some of the key differences in placental development between animal models are presented, as well as how placental functions such as serving as a xenobiotic barrier and exchange organ, immune interface, regulator of growth and fetal oxygenation, and a neuroendocrine organ, could be vulnerable to environmental exposure. This review illustrates the importance of the placenta as a modulator of fetal brain development and suggests critical unexplored areas and possible vulnerabilities to environmental exposure.
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Affiliation(s)
- William P Marinello
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, United States
| | - Heather B Patisaul
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, United States.
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13
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Hernandez Scudder ME, Young RL, Thompson LM, Kore P, Crews D, Hofmann HA, Gore AC. EDCs Reorganize Brain-Behavior Phenotypic Relationships in Rats. J Endocr Soc 2021; 5:bvab021. [PMID: 33928200 PMCID: PMC8055178 DOI: 10.1210/jendso/bvab021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
All species, including humans, are exposed to endocrine-disrupting chemicals (EDCs). Previous experiments have shown behavioral deficits caused by EDCs that have implications for social competence and sexual selection. The neuromolecular mechanisms for these behavioral changes induced by EDCs have not been thoroughly explored. Here, we tested the hypothesis that EDCs administered to rats during a critical period of embryonic brain development would lead to the disruption of normal social preference behavior, and that this involves a network of underlying gene pathways in brain regions that regulate these behaviors. Rats were exposed prenatally to human-relevant concentrations of EDCs (polychlorinated biphenyls [PCBs], vinclozolin [VIN]), or vehicle. In adulthood, a sociosexual preference test was administered. We profiled gene expression of in preoptic area, medial amygdala, and ventromedial nucleus. Prenatal PCBs impaired sociosexual preference in both sexes, and VIN disrupted this behavior in males. Each brain region had unique sets of genes altered in a sex- and EDC-specific manner. The effects of EDCs on individual traits were typically small, but robust; EDC exposure changed the relationships between gene expression and behavior, a pattern we refer to as dis-integration and reconstitution. These findings underscore the effects that developmental exposure to EDCs can have on adult social behavior, highlight sex-specific and individual variation in responses, and provide a foundation for further work on the disruption of genes and behavior after prenatal exposure to EDCs.
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Affiliation(s)
| | - Rebecca L Young
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Lindsay M Thompson
- Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Pragati Kore
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, 78712, USA
| | - David Crews
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Hans A Hofmann
- Institute for Neuroscience, The University of Texas at Austin, Austin, TX, 78712, USA.,Department of Integrative Biology, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Andrea C Gore
- Institute for Neuroscience, The University of Texas at Austin, Austin, TX, 78712, USA.,Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, TX, 78712, USA
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14
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Plunk EC, Richards SM. Endocrine-Disrupting Air Pollutants and Their Effects on the Hypothalamus-Pituitary-Gonadal Axis. Int J Mol Sci 2020; 21:ijms21239191. [PMID: 33276521 PMCID: PMC7731392 DOI: 10.3390/ijms21239191] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 11/28/2020] [Accepted: 11/30/2020] [Indexed: 12/19/2022] Open
Abstract
Anthropogenic endocrine-disrupting chemicals (EDCs) can contaminate air, soil, and water. Human exposures to EDCs occur through inhalation, absorption, and ingestion. EDCs act by disrupting various pathways in the endocrine system. When the hypothalamic–pituitary–gonadal (HPG) axis is disrupted by EDCs, there can be effects on fertility in both men and women. Not only can fertility be indirectly affected by EDC disruptions of the HPG axis, but EDCs can also directly affect the menstrual cycle and sperm morphology. In this review, we will discuss the current findings on EDCs that can be inhaled. This review examines effects of exposure to prominent EDCs: brominated and organophosphate flame retardants, diesel exhaust, polycyclic aromatic hydrocarbons, cadmium and lead, TCDD, and polychlorinated biphenyls on fertility through alterations that disrupt the HPG axis and fertility through inhalation. Although the studies included herein include multiple exposure routes, all the studies indicate receptor interactions that can occur from inhalation and the associated effects of all compounds on the HPG axis and subsequent fertility.
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Affiliation(s)
- Elizabeth C. Plunk
- Department of Environmental Medicine, University of Rochester Medical School, Rochester, NY 14642, USA
- Correspondence:
| | - Sean M. Richards
- Department of Biological, Geological and Environmental Sciences, University of Tennessee-Chattanooga, Chattanooga, TN 37403, USA;
- Department of Obstetrics and Gynecology, College of Medicine, University of Tennessee Health Science Center, Chattanooga, TN 37403, USA
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15
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Fernández-Martínez NF, Ching-López A, Olry de Labry Lima A, Salamanca-Fernández E, Pérez-Gómez B, Jiménez-Moleón JJ, Sánchez MJ, Rodríguez-Barranco M. Relationship between exposure to mixtures of persistent, bioaccumulative, and toxic chemicals and cancer risk: A systematic review. ENVIRONMENTAL RESEARCH 2020; 188:109787. [PMID: 32798941 DOI: 10.1016/j.envres.2020.109787] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 05/15/2023]
Abstract
Environmental risks are responsible for one in five of all deaths worldwide. Persistent, bioaccumulative, and toxic substances are chemicals that can subsist for decades in human tissues and the environment. They include heavy metals, organochlorines, polychlorinated biphenyls, organobromines, organofluorines, and polycyclic aromatic hydrocarbons among others. Although humans are often exposed to multiple pollutants simultaneously, their negative effects on health have generally been studied for each one separately. Among the most severe of these harmful effects is cancer. Here, to compile and analyze the available evidence on the relationship between exposure to mixtures of persistent, bioaccumulative, and toxic chemicals and the risk of developing cancer in the general population, we provide a systematic review based on the main databases (Cochrane, PubMed and Embase), together with complementary sources, using the general methodology of the PRISMA Statement. The articles analyzed were selected by two researchers working independently and their quality was evaluated by reference to the Newcastle-Ottawa scale. The initial search yielded 2379 results from the main sources of information and 22 from the complementary ones. After the article selection process, 22 were included in the final review (21 case-control studies and one cohort study). Analysis of the selected studies revealed that most of the mixtures analyzed were positively associated with risk of cancer, especially that of the breast, colon-rectum or testis, and more strongly so than each contaminant alone. In view of the possible stronger association observed with the development of cancer for some mixtures of pollutants than when each one is present separately, exposure to mixtures should also be monitored and measured, preferably in cohort designs, to complement the traditional approach to persistent, bioaccumulative, and toxic chemicals. The results presented should be taken into account in public health policies in order to strengthen the regulatory framework for cancer prevention and control.
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Affiliation(s)
- Nicolás Francisco Fernández-Martínez
- Unidad de Gestión Clínica Interniveles de Prevención, Promoción y Vigilancia de La Salud, Hospital Universitario Reina Sofía, Córdoba, Spain; Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC), Córdoba, Spain
| | - Ana Ching-López
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Andalusian School of Public Health (EASP), Granada, Spain
| | - Antonio Olry de Labry Lima
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Andalusian School of Public Health (EASP), Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Elena Salamanca-Fernández
- Andalusian School of Public Health (EASP), Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - Beatriz Pérez-Gómez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Epidemiology of Chronic Diseases, National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - José Juan Jiménez-Moleón
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Maria José Sánchez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Andalusian School of Public Health (EASP), Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain.
| | - Miguel Rodríguez-Barranco
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Andalusian School of Public Health (EASP), Granada, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
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16
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Hernandez Scudder ME, Weinberg A, Thompson L, Crews D, Gore AC. Prenatal EDCs Impair Mate and Odor Preference and Activation of the VMN in Male and Female Rats. Endocrinology 2020; 161:5874569. [PMID: 32692847 PMCID: PMC7448938 DOI: 10.1210/endocr/bqaa124] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/16/2020] [Indexed: 02/07/2023]
Abstract
Environmental endocrine-disrupting chemicals (EDCs) disrupt hormone-dependent biological processes. We examined how prenatal exposure to EDCs act in a sex-specific manner to disrupt social and olfactory behaviors in adulthood and underlying neurobiological mechanisms. Pregnant rat dams were injected daily from embryonic day 8 to 18 with 1 mg/kg Aroclor 1221 (A1221), 1 mg/kg vinclozolin, or the vehicle (6% DMSO in sesame oil). A1221 is a mixture of polychlorinated biphenyls (weakly estrogenic) while vinclozolin is a fungicide (anti-androgenic). Adult male offspring exposed to A1221 or vinclozolin, and females exposed to A1221, had impaired mate preference behavior when given a choice between 2 opposite-sex rats that differed by hormone status. A similar pattern of impairment was observed in an odor preference test for urine-soaked filter paper from the same rat groups. A habituation/dishabituation test revealed that all rats had normal odor discrimination ability. Because of the importance of the ventrolateral portion of the ventromedial nucleus (VMNvl) in mate choice, expression of the immediate early gene product Fos was measured, along with its co-expression in estrogen receptor alpha (ERα) cells. A1221 females with impaired mate and odor preference behavior also had increased neuronal activation in the VMNvl, although not specific to ERα-expressing neurons. Interestingly, males exposed to EDCs had normal Fos expression in this region, suggesting that other neurons and/or brain regions mediate these effects. The high conservation of hormonal, olfactory, and behavioral traits necessary for reproductive success means that EDC contamination and its ability to alter these traits has widespread effects on wildlife and humans.
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Affiliation(s)
| | - Amy Weinberg
- Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, Texas
| | - Lindsay Thompson
- Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, Texas
| | - David Crews
- Department of Integrative Biology, The University of Texas at Austin, Austin, Texas
| | - Andrea C Gore
- Institute for Neuroscience, The University of Texas at Austin, Austin, Texas
- Division of Pharmacology & Toxicology, The University of Texas at Austin, Austin, Texas
- Correspondence: Andrea C. Gore, PhD, University of Texas at Austin, 107 W. Dean Keeton St., Box C0875, Austin, TX, 78712. E-mail:
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17
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Yang C, Song G, Lim W. Effects of endocrine disrupting chemicals in pigs. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114505. [PMID: 32268228 DOI: 10.1016/j.envpol.2020.114505] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are compounds that interfere with the expression, synthesis, and activity of hormones in organisms. They are released into the environment from flame retardants and products containing plasticizers. Persistent pesticides, such as dichlorodiphenyltrichloroethane (DDT) and hexachlorobenzene, also disrupt the endocrine system through interaction with hormone receptors. Endogenous hormones, such as 17β-estradiol (E2), are released in the urine and feces of farm animals and seep into terrestrial and aquatic ecosystems through sewage. Pigs are widely used as animal models to determine the effects of EDCs because they are physiologically, biochemically, and histologically similar to humans. EDCs primarily disrupt the reproductive and nervous systems of pigs. Moreover, embryonic development during the prenatal and early postnatal periods is particularly sensitive to EDCs. Mycotoxins, such as zearalenone, are food contaminants that alter hormonal activities in pigs. Mycotoxins also alter the innate immune system in pigs, making them vulnerable to diseases. It has been reported that farm animals are exposed to various types of EDCs, which accumulate in tissues, such as those of gonads, livers, and intestines. There is a lack of an integrated understanding of the impact of EDCs on porcine reproduction and development. Thus, this article aims to provide a comprehensive review of literature regarding the effects of EDCs in pigs.
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Affiliation(s)
- Changwon Yang
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.
| | - Whasun Lim
- Department of Food and Nutrition, Kookmin University, Seoul, 02707, Republic of Korea.
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18
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Balci A, Ozkemahli G, Erkekoglu P, Zeybek ND, Yersal N, Kocer-Gumusel B. Histopathologic, apoptotic and autophagic, effects of prenatal bisphenol A and/or di(2-ethylhexyl) phthalate exposure on prepubertal rat testis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:20104-20116. [PMID: 32239407 DOI: 10.1007/s11356-020-08274-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/28/2020] [Indexed: 06/11/2023]
Abstract
Bisphenol A (BPA) and di(2-ethylhexyl) phthalate (DEHP) are endocrine-disrupting chemicals (EDCs) used in a wide variety of industrial products as plasticizers. Exposure to EDCs, particularly in mixtures, in prenatal and early postnatal periods may lead to unwanted effects and can cause both developmental and reproductive problems. In this study, we aimed to determine the individual and combined effects of prenatal and lactational exposure to BPA and/or DEHP on testicular histology, apoptosis, and autophagic proteins. Pregnant Sprague-Dawley rats (n = 3) were divided into four groups (control, BPA (50 mg/kg/day), DEHP (30 mg/kg/day), and BPA (50 mg/kg/day) + DEHP (30 mg/kg/day)) and dosed by oral gavage during pregnancy and lactation. The male offspring (n = 6) from each group were chosen randomly, and their testicular examinations were performed on the twelfth week. The results showed that fetal and neonatal exposure to BPA and DEHP could lead to significant testicular histopathological alterations and cause increases in apoptosis markers (as evidenced by increases in caspase 3 and caspase 8 levels; increased TUNEL-positive spermatogonia and TUNEL-positive testicular apoptotic cells) and autophagic proteins (as evidenced by increased LC3 and Beclin levels and decreased p62 levels) in testicular tissue. We can suggest that EDCs cause more dramatic changes in both testicular structure and cell death when there is combined exposure.
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Affiliation(s)
- Aylin Balci
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
| | - Gizem Ozkemahli
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
- Faculty of Pharmacy, Department of Toxicology, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Pinar Erkekoglu
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
| | - Naciye Dilara Zeybek
- Faculty of Medicine, Department of Histology and Embryology, Hacettepe University, Ankara, Turkey
| | - Nilgun Yersal
- Faculty of Medicine, Department of Histology and Embryology, Hacettepe University, Ankara, Turkey
| | - Belma Kocer-Gumusel
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Lokman Hekim University, Ankara, Turkey.
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19
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Wiersielis KR, Adams S, Yasrebi A, Conde K, Roepke TA. Maternal exposure to organophosphate flame retardants alters locomotor and anxiety-like behavior in male and female adult offspring. Horm Behav 2020; 122:104759. [PMID: 32320692 PMCID: PMC8530209 DOI: 10.1016/j.yhbeh.2020.104759] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 04/11/2020] [Accepted: 04/12/2020] [Indexed: 11/27/2022]
Abstract
Endocrine disrupting chemicals (EDCs) are chemicals found in our environment that interrupt typical endocrine function. Some flame retardants (FRs) are EDCs as shown in their interaction with steroid and nuclear receptors. Humans are consistently exposed to flame retardants as they are used in everyday items such as plastics, clothing, toys, and electronics. Polybrominated diphenyl ethers were used as the major FR until 2004, when they were replaced by organophosphate flame retardants (OPFRs). Previous research in rodent models utilizing a commercial flame retardant mixture containing OPFRs reported alterations in anxiety-like behavior in the elevated plus maze (EPM) for rodents perinatally exposed to OPFRs. In the present study we utilize wild-type mice maternally exposed (gestational day 7 to postnatal day 14) to either an OPFR mixture of tris(1,3-dichloro-2-propyl), triphenyl phosphate, and tricresyl phosphate or a sesame seed oil vehicle. These mice were evaluated for anxiety-like behavior in adulthood on the open field test (OFT) and the light/dark box (LDB) as well as the EPM. Outcomes from the OFT and LDB indicate that males and females maternally exposed to OPFRs exhibit altered locomotor activity. Results of the EPM were sex-specific as we did not observe an effect in females; however, effects in males differed depending on exposure condition. Males maternally exposed to OPFRs exhibited an anxiolytic-like phenotype in contrast to their vehicle counterparts. This effect in perinatally OPFR-exposed males was not due to alterations in locomotor activity. Our research illustrates that there are sex- and exposure-dependent effects of perinatal OPFR exposure on adult locomotor and anxiety-like behaviors in a mouse model.
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Affiliation(s)
- K R Wiersielis
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA; Joint Graduate Program in Toxicology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA.
| | - S Adams
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - A Yasrebi
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - K Conde
- Graduate Program in Neuroscience, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - T A Roepke
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA; Joint Graduate Program in Toxicology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA; Graduate Program in Neuroscience, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
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20
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Santoro A, Chianese R, Troisi J, Richards S, Nori SL, Fasano S, Guida M, Plunk E, Viggiano A, Pierantoni R, Meccariello R. Neuro-toxic and Reproductive Effects of BPA. Curr Neuropharmacol 2020; 17:1109-1132. [PMID: 31362658 PMCID: PMC7057208 DOI: 10.2174/1570159x17666190726112101] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/04/2019] [Accepted: 07/19/2019] [Indexed: 02/08/2023] Open
Abstract
Background: Bisphenol A (BPA) is one of the highest volume chemicals produced worldwide. It has recognized activity as an endocrine-disrupting chemical and has suspected roles as a neurological and reproductive toxicant. It interferes in steroid signaling, induces oxidative stress, and affects gene expression epigenetically. Gestational, perinatal and neonatal exposures to BPA affect developmental processes, including brain development and gametogenesis, with consequences on brain functions, behavior, and fertility. Methods: This review critically analyzes recent findings on the neuro-toxic and reproductive effects of BPA (and its ana-logues), with focus on neuronal differentiation, synaptic plasticity, glia and microglia activity, cognitive functions, and the central and local control of reproduction. Results: BPA has potential human health hazard associated with gestational, peri- and neonatal exposure. Beginning with BPA’s disposition, this review summarizes recent findings on the neurotoxicity of BPA and its analogues, on neuronal dif-ferentiation, synaptic plasticity, neuro-inflammation, neuro-degeneration, and impairment of cognitive abilities. Furthermore, it reports the recent findings on the activity of BPA along the HPG axis, effects on the hypothalamic Gonadotropin Releas-ing Hormone (GnRH), and the associated effects on reproduction in both sexes and successful pregnancy. Conclusion: BPA and its analogues impair neuronal activity, HPG axis function, reproduction, and fertility. Contrasting re-sults have emerged in animal models and human. Thus, further studies are needed to better define their safety levels. This re-view offers new insights on these issues with the aim to find the “fil rouge”, if any, that characterize BPA’s mechanism of action with outcomes on neuronal function and reproduction.
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Affiliation(s)
- Antonietta Santoro
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy
| | - Rosanna Chianese
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Jacopo Troisi
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy.,Theoreo srl - Spin-off company of the University of Salerno, Salerno, Italy.,European Biomedical Research Institute of Salerno (EBRIS), Salerno, Italy
| | - Sean Richards
- University of Tennessee College of Medicine, Department of Obstetrics and Gynecology, Chattanooga, TN, United States.,Department of Biology, Geology and Environmental Sciences, University of Tennessee at Chattanooga, Chattanooga, TN, United States
| | - Stefania Lucia Nori
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy
| | - Silvia Fasano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Maurizio Guida
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy.,Theoreo srl - Spin-off company of the University of Salerno, Salerno, Italy.,European Biomedical Research Institute of Salerno (EBRIS), Salerno, Italy
| | - Elizabeth Plunk
- University of Tennessee College of Medicine, Department of Obstetrics and Gynecology, Chattanooga, TN, United States
| | - Andrea Viggiano
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy
| | - Riccardo Pierantoni
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Rosaria Meccariello
- Department of Movement Sciences and Wellbeing, Parthenope University of Naples, Naples, Italy
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21
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DeLeon S, Webster MS, DeVoogd TJ, Dhondt AA. Developmental polychlorinated biphenyl exposure influences adult zebra finch reproductive behaviour. PLoS One 2020; 15:e0230283. [PMID: 32191759 PMCID: PMC7082000 DOI: 10.1371/journal.pone.0230283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/25/2020] [Indexed: 01/07/2023] Open
Abstract
Polychlorinated biphenyls (PCBs) are worldwide chemical pollutants that have been linked to disrupted reproduction and altered sexual behaviour in many organisms. However, the effect of developmental PCB-exposure on adult passerine reproductive behaviour remains unknown. A commercial PCB mixture (Aroclor 1242) or an estrogenic congener (PCB 52) were administered in sublethal amounts to nestling zebra finches (Taeniopygia guttata) in the laboratory to identify effects of developmental PCB-exposure on adult zebra finch reproductive parameters. Results indicate that although traditional measures of reproductive success are not altered by this PCB dosage, PCBs do alter sexual behaviours such as male song and nesting behaviour. Males treated with PCB 52 in the nest sang significantly fewer syllables than control males, while females treated with Aroclor 1242 in the nest showed the strongest song preferences. PCB treatment also caused an increase in the number of nesting attempts and abandoned nests in the Aroclor 1242 treatment relative to the PCB 52 treatment, and offspring with control fathers fledged significantly earlier than those with fathers treated with Aroclor 1242. Behavioural differences between males seem to best explain these reproductive effects, most notably aggression. These findings suggest that sublethal PCB-exposure during development can significantly alter key reproductive characteristics of adult zebra finches, likely reducing fitness in the wild.
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Affiliation(s)
- Sara DeLeon
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America
- Cornell Lab of Ornithology, Cornell University, Ithaca, New York, United States of America
- * E-mail:
| | - Michael S. Webster
- Cornell Lab of Ornithology, Cornell University, Ithaca, New York, United States of America
- Department of Neurobiology and Behaviour, Cornell University, Ithaca, New York, United States of America
| | - Timothy J. DeVoogd
- Department of Psychology, Cornell University, Ithaca, New York, United States of America
| | - André A. Dhondt
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, New York, United States of America
- Cornell Lab of Ornithology, Cornell University, Ithaca, New York, United States of America
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22
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Salamanca-Fernández E, Rodríguez-Barranco M, Arrebola JP, Vela F, Díaz C, Chirlaque MD, Colorado-Yohar S, Jiménez-Zabala A, Irizar A, Guevara M, Ardanaz E, Iribarne-Durán LM, Pérez Del Palacio J, Olea N, Agudo A, Sánchez MJ. Bisphenol-A in the European Prospective Investigation into Cancer and Nutrition cohort in Spain: Levels at recruitment and associated dietary factors. ENVIRONMENTAL RESEARCH 2020; 182:109012. [PMID: 31837551 DOI: 10.1016/j.envres.2019.109012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/26/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA) is considered an endocrine disruptor and it is present in numerous products of daily use. The aim of this study was to analyze serum BPA concentrations in a subcohort of the Spanish European Prospective Investigation into Cancer and Nutrition (EPIC), as well as to identify potential predictors of the exposure. The population consisted on 3553 subjects from 4 EPIC-Spain centres and BPA levels were measured in serum samples by UHPLC-MS/MS. Almost 70% of the participants showed detectable BPA values (>0.2 ng/ml), with a geometric mean of 1.19 ng/ml (95% CI: 1.12-1.25). By sex, detectable percentages were similar (p = 0.56) but with higher serum levels in men (1.27 vs 1.11 ng/ml, p = 0.01). Based on the adjusted regression models, a 50 g/day increase in the consumption of added fats and oils were associated with 43% lower BPA serum levels, while sugar and confectionary was associated with 25% higher levels of serum BPA. We evidenced differential exposure levels by province, sex and age, but not by anthropometric or lifestyle characteristics. Further investigation is needed to understand the influence of diet in BPA exposure.
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Affiliation(s)
- Elena Salamanca-Fernández
- Andalusian School of Public Health (EASP). Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain
| | - Miguel Rodríguez-Barranco
- Andalusian School of Public Health (EASP). Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain.
| | - Juan Pedro Arrebola
- Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Department of Public Health, School of Medicine, University of Granada. Granada, Spain
| | - Fernando Vela
- Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain
| | - Caridad Díaz
- MEDINA Foundation, Center of Excellence in Research into Innovative Medicines in Andalusia, Technology Park of Health Sciences, Granada, Spain
| | - María Dolores Chirlaque
- CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain; Department of Health and Social Sciences, University of Murcia, Spain
| | - Sandra Colorado-Yohar
- CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain; Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Medellín, Colombia
| | - Ana Jiménez-Zabala
- CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Public Health Division of Gipuzkoa, Basque Government, Avenida Navarra No 4, 20013, San Sebastián, Gipuzkoa, Spain; Health Research Institute, Biodonostia, San Sebastián, Spain
| | - Amaia Irizar
- Health Research Institute, Biodonostia, San Sebastián, Spain
| | - Marcela Guevara
- CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Eva Ardanaz
- CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Luz María Iribarne-Durán
- Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain; Department of Radiology, School of Medicine, University of Granada. Granada, Spain
| | - José Pérez Del Palacio
- MEDINA Foundation, Center of Excellence in Research into Innovative Medicines in Andalusia, Technology Park of Health Sciences, Granada, Spain
| | - Nicolás Olea
- Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Department of Radiology, School of Medicine, University of Granada. Granada, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet de Llobregat, Barcelona 08908, Spain
| | - Maria-José Sánchez
- Andalusian School of Public Health (EASP). Granada, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA. Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP). Madrid, Spain; Universidad de Granada. Granada, Spain
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23
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Untangling the association between environmental endocrine disruptive chemicals and the etiology of male genitourinary cancers. Biochem Pharmacol 2019; 172:113743. [PMID: 31812676 DOI: 10.1016/j.bcp.2019.113743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/02/2019] [Indexed: 02/06/2023]
Abstract
Endocrine disrupting chemicals disrupt normal physiological function of endogenous hormones, their receptors, and signaling pathways of the endocrine system. Most endocrine disrupting chemicals exhibit estrogen/androgen agonistic and antagonistic activities that impinge upon hormone receptors and related pathways. Humans are exposed to endocrine disrupting chemicals through food, water and air, affecting the synthesis, release, transport, metabolism, binding, function and elimination of naturally occurring hormones. The urogenital organs function as sources of steroid hormones, are targeted end organs, and participate within systemic feedback loops within the endocrine system. The effects of endocrine disruptors can ultimately alter cellular homeostasis leading to a broad range of health effects, including malignancy. Human cancer is characterized by uncontrolled cell proliferation, mechanisms opposing cell-death, development of immortality, induction of angiogenesis, and promotion of invasion/metastasis. While hormonal malignancies of the male genitourinary organs are the second most common types of cancer, the molecular effects of endocrine disrupting chemicals in hormone-driven cancers has yet to be fully explored. In this commentary, we examine the molecular evidence for the involvement of endocrine disrupting chemicals in the genesis and progression of hormone-driven cancers in the prostate, testes, and bladder. We also report on challenges that have to be overcome to drive our understanding of these chemicals and explore the potential avenues of discovery that could ultimately allow the development of tools to prevent cancer in populations where exposure is inevitable.
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24
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Huang W, He Y, Xiao J, Huang Y, Li A, He M, Wu K. Risk of breast cancer and adipose tissue concentrations of polychlorinated biphenyls and organochlorine pesticides: a hospital-based case-control study in Chinese women. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:32128-32136. [PMID: 31494853 DOI: 10.1007/s11356-019-06404-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 09/03/2019] [Indexed: 02/05/2023]
Abstract
Polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT), and dichlorodiphenyldichloroethylene (DDE) are suspected to be associated with breast cancer risk, but the results are controversial. This study was performed to evaluate the associations between adipose tissue PCB, DDT, and DDE concentrations and breast cancer risk. Two hundred and nine pathologically diagnosed breast cancer cases and 165 controls were recruited from three local hospitals in Shantou city, China, from 2014 to 2016. Concentrations of 7 PCB congeners, p,p'-DDT, and p,p'-DDE were measured in adipose tissues obtained from the breast for cases and the breast/abdomen for controls during surgery. Clinicopathologic information and demographic characteristics were collected from medical records. PCBs, p,p'-DDT, and p,p'-DDE concentrations in adipose tissues were compared between cases and controls. Multivariate logistic regression model was used to analyze the risk of breast cancer by PCBs, p,p'-DDT, and p,p'-DDE concentrations in adipose tissues. Breast cancer cases have relatively higher menarche age, higher breastfeeding and postmenopausal proportion than controls. Levels of PCB-52, PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, total PCBs (∑PCBs), and p,p'-DDE were relatively higher in breast cancer cases than controls. Breast cancer risk was increased in the third tertile of PCB-101, PCB-118, PCB-138, PCB-153, PCB-180, ∑PCBs, and p,p'-DDE as compared with the first tertile in both adjusted and unadjusted logistic regression models (odds ratios [ORs] were from 1.58 to 7.88); and increased linearly across categories of PCB-118 and p,p'-DDE in unadjusted model, and PCB-118 and PCB-153 in the adjusted model with trend (all P < 0.01). While breast cancer risk was declined in the second tertile of PCB-28, PCB-52, and PCB-101 in both unadjusted and adjusted models, also second tertile of p,p'-DDT and third tertile of PCB-28 in the adjusted models. This study suggests associations between the exposure of PCBs, p,p'-DDT, and p,p'-DDE and breast cancer risk. Based on adjusted models, PCB-118, PCB-138, PCB-153, PCB-180, ∑PCBs, and p,p'-DDE exposures increase breast cancer risk at current exposure levels, despite existing inconsistent even inverse results in PCB-28, PCB-52, PCB-101, and p,p'-DDT. More epidemiological studies are still needed to verify these findings in different populations.
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Affiliation(s)
- Wenlong Huang
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Yuanfang He
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Jiefeng Xiao
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Yuanni Huang
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Anna Li
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Meirong He
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China
| | - Kusheng Wu
- Department of Preventive Medicine, Shantou University Medical College, No.22, Xinling Rd., Shantou, 515041, Guangdong, China.
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Dufour S, Quérat B, Tostivint H, Pasqualini C, Vaudry H, Rousseau K. Origin and Evolution of the Neuroendocrine Control of Reproduction in Vertebrates, With Special Focus on Genome and Gene Duplications. Physiol Rev 2019; 100:869-943. [PMID: 31625459 DOI: 10.1152/physrev.00009.2019] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In humans, as in the other mammals, the neuroendocrine control of reproduction is ensured by the brain-pituitary gonadotropic axis. Multiple internal and environmental cues are integrated via brain neuronal networks, ultimately leading to the modulation of the activity of gonadotropin-releasing hormone (GnRH) neurons. The decapeptide GnRH is released into the hypothalamic-hypophysial portal blood system and stimulates the production of pituitary glycoprotein hormones, the two gonadotropins luteinizing hormone and follicle-stimulating hormone. A novel actor, the neuropeptide kisspeptin, acting upstream of GnRH, has attracted increasing attention in recent years. Other neuropeptides, such as gonadotropin-inhibiting hormone/RF-amide related peptide, and other members of the RF-amide peptide superfamily, as well as various nonpeptidic neuromediators such as dopamine and serotonin also provide a large panel of stimulatory or inhibitory regulators. This paper addresses the origin and evolution of the vertebrate gonadotropic axis. Brain-pituitary neuroendocrine axes are typical of vertebrates, the pituitary gland, mediator and amplifier of brain control on peripheral organs, being a vertebrate innovation. The paper reviews, from molecular and functional perspectives, the evolution across vertebrate radiation of some key actors of the vertebrate neuroendocrine control of reproduction and traces back their origin along the vertebrate lineage and in other metazoa before the emergence of vertebrates. A focus is given on how gene duplications, resulting from either local events or from whole genome duplication events, and followed by paralogous gene loss or conservation, might have shaped the evolutionary scenarios of current families of key actors of the gonadotropic axis.
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Affiliation(s)
- Sylvie Dufour
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
| | - Bruno Quérat
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
| | - Hervé Tostivint
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
| | - Catherine Pasqualini
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
| | - Hubert Vaudry
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
| | - Karine Rousseau
- Muséum National d'Histoire Naturelle, Biology of Aquatic Organisms and Ecosystems, CNRS, IRD, Sorbonne Université, Université Caen Normandie, Université des Antilles, Paris, France; Université Paris Diderot, Sorbonne Paris Cite, Biologie Fonctionnelle et Adaptative, Paris, France; INSERM U1133, Physiologie de l'axe Gonadotrope, Paris, France; Muséum National d'Histoire Naturelle, Physiologie Moléculaire et Adaptation, Muséum National d'Histoire Naturelle, Paris, France; Université Paris-Saclay, Université Paris-Sud, CNRS, Paris-Saclay Institute of Neuroscience (UMR 9197), Gif-sur-Yvette, France; and Université de Rouen Normandie, Rouen, France
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26
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Attfield KR, Pinney SM, Sjödin A, Voss RW, Greenspan LC, Biro FM, Hiatt RA, Kushi LH, Windham GC. Longitudinal study of age of menarche in association with childhood concentrations of persistent organic pollutants. ENVIRONMENTAL RESEARCH 2019; 176:108551. [PMID: 31376650 DOI: 10.1016/j.envres.2019.108551] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/18/2019] [Accepted: 06/18/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Age at female puberty is associated with adult morbidities, including breast cancer and diabetes. Hormonally active chemicals are suspected of altering pubertal timing. We examined whether persistent organic pollutants (POPs) are associated with age at menarche in a longitudinal study. METHODS We analyzed data for females enrolled at age 6-8 years in the Breast Cancer and Environment Research Program from California and Ohio. Participants were followed annually 2004-2013 and provided serum (mean age 7.8 years) for measurement of polychlorinated biphenyl (PCB), organochlorine pesticide (OCP), and polybrominated diphenyl ether (PBDE) concentrations. Age of menarche was assigned based on parental and participant reported dates and ages of menarche. Adjusted hazard ratios (aHRs) for menarchal onset were calculated with Cox proportional regression. Body mass index (BMI), potentially on the causal pathway, was added to parallel analyses. RESULTS Age of menarche was later with higher summed PCB levels (median 11.9 years in quartile 1 [Q1] versus 12.7 in quartile 4 [Q4]) and OCP levels (12.1 years versus 12.4, respectively). When adjusting for all covariates except BMI, higher POP concentrations were associated with later age at menarche (Q4 versus Q1 aHRs: PBDEs 0.75 [95% CI 0.58, 0.97], PCBs 0.67 [95% CI 0.5, 0.89], and OCPs 0.66 [95% CI 0.50, 0.89]). Additional adjustment for BMI attenuated aHRs; PCB aHR approached the null. CONCLUSION Findings revealed later onset of menarche with higher concentrations of certain POPs, possibly through an association with BMI. Altered pubertal timing may have long lasting effects on reproductive health and disease risk, so continued attention is important for understanding the biological processes affected by hormonally active chemicals.
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Affiliation(s)
- Kathleen R Attfield
- California Department of Public Health, Richmond, CA, USA; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Susan M Pinney
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Andreas Sjödin
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Robert W Voss
- California Department of Public Health, Richmond, CA, USA
| | | | - Frank M Biro
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Robert A Hiatt
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
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27
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Gore AC, Krishnan K, Reilly MP. Endocrine-disrupting chemicals: Effects on neuroendocrine systems and the neurobiology of social behavior. Horm Behav 2019; 111:7-22. [PMID: 30476496 PMCID: PMC6527472 DOI: 10.1016/j.yhbeh.2018.11.006] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/25/2018] [Accepted: 11/14/2018] [Indexed: 02/06/2023]
Abstract
A contribution to SBN/ICN special issue. Endocrine-disrupting chemicals (EDCs) are pervasive in the environment. They are found in plastics and plasticizers (bisphenol A (BPA) and phthalates), in industrial chemicals such as polychlorinated biphenyls (PCBs), and include some pesticides and fungicides such as vinclozolin. These chemicals act on hormone receptors and their downstream signaling pathways, and can interfere with hormone synthesis, metabolism, and actions. Because the developing brain is particularly sensitive to endogenous hormones, disruptions by EDCs can change neural circuits that form during periods of brain organization. Here, we review the evidence that EDCs affect developing hypothalamic neuroendocrine systems, and change behavioral outcomes in juvenile, adolescent, and adult life in exposed individuals, and even in their descendants. Our focus is on social, communicative and sociosexual behaviors, as how an individual behaves with a same- or opposite-sex conspecific determines that individual's ability to exist in a community, be selected as a mate, and reproduce successfully.
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Affiliation(s)
- Andrea C Gore
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA; Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Krittika Krishnan
- Department of Psychology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Michael P Reilly
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
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28
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Caceres S, Silván G, Illera MJ, Millan P, Moyano G, Illera JC. Effects of soya milk on reproductive hormones during puberty in male Wistar rats. Reprod Domest Anim 2019; 54:855-863. [DOI: 10.1111/rda.13434] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/15/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Sara Caceres
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
| | - Gema Silván
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
| | - Maria J. Illera
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
| | - Pilar Millan
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
| | - Gabriel Moyano
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
| | - Juan C. Illera
- Departamento de Fisiología, Facultad de Veterinaria Universidad Complutense de Madrid Madrid Spain
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29
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Abstract
PURPOSE OF REVIEW With the incidence of neurodevelopmental disorders on the rise, it is imperative to identify and understand the mechanisms by which environmental contaminants can impact the developing brain and heighten risk. Here, we report on recent findings regarding novel mechanisms of developmental neurotoxicity and highlight chemicals of concern, beyond traditionally defined neurotoxicants. RECENT FINDINGS The perinatal window represents a critical and extremely vulnerable period of time during which chemical insult can alter the morphological and functional trajectory of the developing brain. Numerous chemical classes have been associated with alterations in neurodevelopment including metals, solvents, pesticides, and, more recently, endocrine-disrupting compounds. Although mechanisms of neurotoxicity have traditionally been identified as pathways leading to neuronal cell death, neuropathology, or severe neural injury, recent research highlights alternative mechanisms that result in more subtle but consequential changes in the brain and behavior. These emerging areas of interest include neuroendocrine and immune disruption, as well as indirect toxicity via actions on other organs such as the gut and placenta. Understanding of the myriad ways in which the developing brain is vulnerable to chemical exposures has grown tremendously over the past decade. Further progress and implementation in risk assessment is critical to reducing risk of neurodevelopmental disorders.
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Natoli L, Luci G, Mennillo E, Adeogun AO, Arukwe A. Assessing the effects of Awba dam sediment (Nigeria) on the steroidogenesis of H295R cells using different extraction methods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:121-131. [PMID: 30196212 DOI: 10.1016/j.scitotenv.2018.08.409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 08/26/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
In the present study, H295R human cells were used to investigate the endocrine disruptor potential of three different sediments extracts taken from a Nigerian tropical freshwater dam (Awba Dam), using three extraction methods that allowed a selective consideration of contaminants based on their binding affinity, which is mainly driven by polarity, to sediment particles. After exposure to different concentration of each extract, H295R cells were evaluated for the expression profiles of 10 steroidogenic enzyme genes and estradiol (E2) and testosterone (T) levels. Our results showed a comparable concentrated-related increase in the expression of 17β-hsd1, 3β-hsd2 and cyp21 in cells treated with the polar and non-polar extracts. The star, hmgr, cyp11b2 and 17β-hsd4 were slightly decreased, in an apparent concentration-specific manner, after treatment with the polar extract and decreased in the non-polar treatment. The cyp11a and cyp17 showed an opposite trend in the polar and non-polar treatments. E2 was significantly higher in cell treated with the non-polar extract. Elutriate exposure produced less pronounced variation in mRNA and hormones levels. Overall the extract with non-polar compounds produced the most severe effects in H295R cells. Thus, direct ingestion of detritus and mud from fishes and other benthonic organisms represent possible transfer of contaminants in the trophic web, and mainly account for alteration of the endocrine system previously observed in fish from the same study site.
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Affiliation(s)
- Luigi Natoli
- Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway
| | - Giacomo Luci
- Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway
| | - Elvira Mennillo
- Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway
| | - Aina O Adeogun
- Department of Zoology, University of Ibadan, Ibadan, Nigeria
| | - Augustine Arukwe
- Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, N-7491 Trondheim, Norway.
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Ye X, Liu J. Effects of pyrethroid insecticides on hypothalamic-pituitary-gonadal axis: A reproductive health perspective. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:590-599. [PMID: 30476888 DOI: 10.1016/j.envpol.2018.11.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/09/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Pyrethroids, a class of ubiquitous insecticides, have been recognized as endocrine-disrupting chemicals (EDCs). A lot of studies have implied the endocrine-disrupting effects of pyrethroids on the hypothalamic-pituitary-gonadal (HPG) axis. However, there are few review articles regarding the effects of pyrethroids on the HPG axis of mammal and human, especially new research progress made in this area. The present review sums up the effects of pyrethroids on the HPG axis-related reproductive outcomes, including epidemiological investigations based on human biomonitoring, animal studies and in vitro tests. Mechanisms have described that the endocrine-disrupting effects of pyrethroids on mammal can be mediated via the interaction with steroid receptors, the direct action on ion channels and signaling molecules. Finally, we summarize the current research gaps and suggest future directions in this topic.
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Affiliation(s)
- Xiaoqing Ye
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Research Center for Air Pollution and Health, Zhejiang University, Hangzhou 310058, China.
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Topper VY, Reilly MP, Wagner LM, Thompson LM, Gillette R, Crews D, Gore AC. Social and neuromolecular phenotypes are programmed by prenatal exposures to endocrine-disrupting chemicals. Mol Cell Endocrinol 2019; 479:133-146. [PMID: 30287398 PMCID: PMC6263824 DOI: 10.1016/j.mce.2018.09.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/25/2018] [Accepted: 09/28/2018] [Indexed: 01/09/2023]
Abstract
Exposures to endocrine-disrupting chemicals (EDCs) affect the development of hormone-sensitive neural circuits, the proper organization of which are necessary for the manifestation of appropriate adult social and sexual behaviors. We examined whether prenatal exposure to polychlorinated biphenyls (PCBs), a family of ubiquitous industrial contaminants detectable in virtually all humans and wildlife, caused changes in sexually-dimorphic social interactions and communications, and profiled the underlying neuromolecular phenotype. Rats were treated with a PCB commercial mixture, Aroclor 1221 (A1221), estradiol benzoate (EB) as a positive control for estrogenic effects of A1221, or the vehicle (4% DMSO), on embryonic day (E) 16 and 18. In adult F1 offspring, we first conducted tests of ultrasonic vocalization (USV) calls in a sociosexual context as a measure of motivated communications. Numbers of certain USV call types were significantly increased by prenatal treatment with A1221 in males, and decreased by EB in females. In a test of sociosexual preference for a hormone-vs. a non-hormone-primed opposite sex conspecific, male (but not female) nose-touching with opposite-sex rats was significantly diminished by EDCs. Gene expression profiling was conducted in two brain regions that are part of the social decision-making network in the brain: the medial preoptic nucleus (MPN) and the ventromedial nucleus (VMN). In both regions, many more genes were affected by A1221 or EB in females than males. In female MPN, A1221 changed expression of steroid hormone receptor and neuropeptide genes (e.g., Ar, Esr1, Esr2, and Kiss1). In male MPN, only Per2 was affected by A1221. The VMN had a number of genes affected by EB compared to vehicle (females: Kiss1, Kiss1r, Pgr; males: Crh) but not A1221. These differences between EB and A1221 indicate that the mechanism of action of A1221 goes beyond estrogenic pathways. These data show sex-specific effects of prenatal PCBs on adult behaviors and the neuromolecular phenotype.
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Affiliation(s)
- Viktoria Y Topper
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Michael P Reilly
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Lauren M Wagner
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Lindsay M Thompson
- Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Ross Gillette
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - David Crews
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA; Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712, USA
| | - Andrea C Gore
- The Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712, USA; Division of Pharmacology and Toxicology, The University of Texas at Austin, Austin, TX 78712, USA.
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Klopčič I, Markovič T, Mlinarič-Raščan I, Sollner Dolenc M. Endocrine disrupting activities and immunomodulatory effects in lymphoblastoid cell lines of diclofenac, 4-hydroxydiclofenac and paracetamol. Toxicol Lett 2018; 294:95-104. [DOI: 10.1016/j.toxlet.2018.05.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 05/11/2018] [Accepted: 05/15/2018] [Indexed: 12/27/2022]
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Horzmann KA, Reidenbach LS, Thanki DH, Winchester AE, Qualizza BA, Ryan GA, Egan KE, Hedrick VE, Sobreira TJP, Peterson SM, Weber GJ, Wirbisky-Hershberger SE, Sepúlveda MS, Freeman JL. Embryonic atrazine exposure elicits proteomic, behavioral, and brain abnormalities with developmental time specific gene expression signatures. J Proteomics 2018; 186:71-82. [PMID: 30012420 PMCID: PMC6193558 DOI: 10.1016/j.jprot.2018.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/29/2018] [Accepted: 07/02/2018] [Indexed: 02/06/2023]
Abstract
Atrazine (ATZ), the second most commonly used herbicide in the United States, is an endocrine disrupting chemical linked to cancer and a common drinking water contaminant. This study further investigates ATZ-related developmental toxicity by testing the following hypotheses in zebrafish: the effects of embryonic ATZ exposure are dependent on timing of exposure; embryonic ATZ exposure alters brain development and function; and embryonic ATZ exposure changes protein abundance in carcinogenesis-related pathways. After exposing embryos to 0, 0.3, 3, or 30 parts per billion (ppb) ATZ, we monitored the expression of cytochrome P450 family 17 subfamily A member 1 (cyp17a1), glyoxalase I (glo1), ring finger protein 14 (rnf14), salt inducible kinase 2 (sik2), tetratricopeptide domain 3 (ttc3), and tumor protein D52 like 1 (tpd52l1) at multiple embryonic time points to determine normal expression and if ATZ exposure altered expression. Only cyp17a1 had normal dynamic expression, but ttc3 and tpd52l1 had ATZ-related expression changes before 72 h. Larvae exposed to 0.3 ppb ATZ had increased brain length, while larvae exposed to 30 ppb ATZ were hypoactive. Proteomic analysis identified altered protein abundance in pathways related to cellular function, neurodevelopment, and genital-tract cancer. The results indicate embryonic ATZ toxicity involves interactions of multiple pathways. SIGNIFICANCE This is the first report of proteomic alterations following embryonic exposure to atrazine, an environmentally persistent pesticide and common water contaminant. Although the transcriptomic alterations in larval zebrafish with embryonic atrazine exposure have been reported, neither the time at which gene expression changes occur nor the resulting proteomic changes have been investigated. This study seeks to address these knowledge gaps by evaluating atrazine's effect on gene expression through multiple time points during embryogenesis, and correlating changes in gene expression to pathological alterations in brain length and functional changes in behavior. Finally, pathway analysis of the proteomic alterations identifies connections between the molecular changes and functional outcomes associated with embryonic atrazine exposure.
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Affiliation(s)
- Katharine A Horzmann
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Leeah S Reidenbach
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Devang H Thanki
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Anna E Winchester
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Brad A Qualizza
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Geoffrey A Ryan
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Kaitlyn E Egan
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Victoria E Hedrick
- Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette, IN 47907, United States
| | - Tiago J P Sobreira
- Bindley Bioscience Center, Discovery Park, Purdue University, West Lafayette, IN 47907, United States
| | - Samuel M Peterson
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | - Gregory J Weber
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States
| | | | - Maria S Sepúlveda
- Forestry and Natural Resources, Purdue University, West Lafayette, IN 47907, United States
| | - Jennifer L Freeman
- School of Health Sciences, Purdue University, West Lafayette, IN 47907, United States; Purdue Center for Cancer Research, Purdue University, West Lafayette, IN 47907, United States.
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35
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Manley K, Han W, Zelin G, Lawrence DA. Crosstalk between the immune, endocrine, and nervous systems in immunotoxicology. CURRENT OPINION IN TOXICOLOGY 2018. [DOI: 10.1016/j.cotox.2017.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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36
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Ikhlas S, Usman A, Ahmad M. Comparative study of the interactions between bisphenol-A and its endocrine disrupting analogues with bovine serum albumin using multi-spectroscopic and molecular docking studies. J Biomol Struct Dyn 2018; 37:1427-1437. [DOI: 10.1080/07391102.2018.1461136] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Shoeb Ikhlas
- Faculty of Life Sciences, Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Afia Usman
- Faculty of Life Sciences, Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Masood Ahmad
- Faculty of Life Sciences, Department of Biochemistry, Aligarh Muslim University, Aligarh, India
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37
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Jana B, Meller K, Czajkowska M, Całka J. Long-term estradiol-17β exposure decreases the cholinergic innervation pattern of the pig ovary. Ann Anat 2018; 216:135-141. [DOI: 10.1016/j.aanat.2017.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/19/2017] [Accepted: 11/24/2017] [Indexed: 12/16/2022]
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38
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Associations of maternal exposure to organophosphate and pyrethroid insecticides and the herbicide 2,4-D with birth outcomes and anogenital distance at 3 months in the Odense Child Cohort. Reprod Toxicol 2018; 76:53-62. [DOI: 10.1016/j.reprotox.2017.12.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 12/08/2017] [Accepted: 12/20/2017] [Indexed: 11/23/2022]
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39
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Kim HS, Kim YB, Choi D, Cheon YP, Lee SH. Hershberger Assays for Bisphenol-A and Its Substitute Candidates. Dev Reprod 2017; 21:441-448. [PMID: 29354789 PMCID: PMC5769138 DOI: 10.12717/dr.2017.21.4.441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 11/26/2017] [Accepted: 12/10/2017] [Indexed: 11/17/2022]
Abstract
Bisphenol-A(BPA) is a member of alkylphenol family, and shows adverse effects including reduced fertility, reproductive tract abnormalities, metabolic disorder, cancer induction, neurotoxicity and immunotoxicity. In the present study, we conducted Hershberger assay to evaluate whether the two candidates to replace BPA have androgenic or antiandrogenic activity. The assay was carried out using immature castrated Sprague-Dawley male rats. After 7 days of the surgery, testosterone propionate (TP, 0.4 mg/kg/day) and test materials (low dose, 40 mg/kg/day; high dose, 400 mg/kg/day) were administered for 10 consecutive days by subcutaneous (s.c.) injection and oral gavage, respectively. Test materials were BPA, isosorbide (ISO) and cyclohexanedimethanol (CHDM). The rats were necropsied, and then the weights of five androgen-dependent tissues [ventral prostate, seminal vesicle, levator ani-bulbocavernosus (LABC) muscle, paired Cowper's glands, and glans penis] and three androgen-insensitive tissues (kidney, spleen and liver) were measured. All test materials including BPA did not exhibit any androgenic activity in the assay. On the contrary, antiandrogen-like activities were found in all test groups, and the order of the intensity was CHDM > BPA > ISO in the five androgen-sensitive tissues. There was no statistical difference between low dose treatment and high dose treatment of BPA group as well as ISO group. In CHDM group, high dose treatment exhibited most severe weight reduction in all measured tissues. There was no statistical difference in androgen-insensitive tissue measurements, except BPA groups. Since the effects of ISO treatment on the accessory sex organs were much less or not present at all when compared to those of BPA, ISO could be a strong candidate to replace BPA. CHDM treatment brought most severe weight reduction in all of androgen-sensitive tissues, so this material should be excluded for further screening of BPA substitute selection.
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Affiliation(s)
- Hee-Su Kim
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Yong-Bin Kim
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
| | - Donchan Choi
- Dept. of Life Science, Yong-In University, Yongin 17092, Korea
| | - Yong-Pil Cheon
- Division of Developmental Biology and Physiology, Sungshin University, Seoul 02844, Korea
| | - Sung-Ho Lee
- Dept. of Biotechnology, Sangmyung University, Seoul 03016, Korea
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40
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Xu B, Li K, Qiao J, Liungai Z, Chen C, Lu Y. UV photoconversion of environmental oestrogen diethylstilbestrol and its persistence in surface water under sunlight. WATER RESEARCH 2017; 127:77-85. [PMID: 29035768 DOI: 10.1016/j.watres.2017.09.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 09/26/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
As one of the most oestrogenic synthetic compounds in water environment, diethylstilbestrol (DES) has been studied for decades. Some studies showed that DES can be removed by ultraviolet (UV) irradiation. However, no one has paid attention to the formation of oestrogenic disinfection by-products (DBPs) and the persistence of DES in surface water remains a mystery. In this study, UV was found to be very effective in removing oestrogenic activity regardless of water quality. Three oestrogenic DBPs were specifically isolated by oestrogen receptor-based affinity chromatography and identified as 9,10-diethylphenanthrene-3,6-diol, cis-DES and Z,Z-dienestrol. Among them, 9,10-diethylphenanthrene-3,6-diol was proved to have stronger oestrogenic activity than E2, but it can be further photodegraded. In addition, DES was also demonstrated to be a photochromic compound, whose UV-induced intermediates can be transformed back to DES under sunlight, which significantly slows down the photodegradation of DES. This study solves the question as to why UV-degradable DES is still detectable in the ambient water and provides a deep understanding of DES removal during UV disinfection.
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Affiliation(s)
- Bi Xu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, People's Republic of China
| | - Kuixiao Li
- Research and Development Centre, Beijing Drainage Group Company Limited, Beijing 100024, People's Republic of China
| | - Juan Qiao
- Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Zhiqi Liungai
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, People's Republic of China
| | - Chao Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China.
| | - Yun Lu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, People's Republic of China.
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41
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Twenge JM, Sherman RA, Wells BE. Declines in Sexual Frequency among American Adults, 1989-2014. ARCHIVES OF SEXUAL BEHAVIOR 2017; 46:2389-2401. [PMID: 28265779 DOI: 10.1007/s10508-017-0953-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 01/27/2017] [Accepted: 01/28/2017] [Indexed: 05/25/2023]
Abstract
American adults had sex about nine fewer times per year in the early 2010s compared to the late 1990s in data from the nationally representative General Social Survey, N = 26,620, 1989-2014. This was partially due to the higher percentage of unpartnered individuals, who have sex less frequently on average. Sexual frequency declined among the partnered (married or living together) but stayed steady among the unpartnered, reducing the marital/partnered advantage for sexual frequency. Declines in sexual frequency were similar across gender, race, region, educational level, and work status and were largest among those in their 50s, those with school-age children, and those who did not watch pornography. In analyses separating the effects of age, time period, and cohort, the decline was primarily due to birth cohort (year of birth, also known as generation). With age and time period controlled, those born in the 1930s (Silent generation) had sex the most often, whereas those born in the 1990s (Millennials and iGen) had sex the least often. The decline was not linked to longer working hours or increased pornography use. Age had a strong effect on sexual frequency: Americans in their 20s had sex an average of about 80 times per year, compared to about 20 times per year for those in their 60s. The results suggest that Americans are having sex less frequently due to two primary factors: An increasing number of individuals without a steady or marital partner and a decline in sexual frequency among those with partners.
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Affiliation(s)
- Jean M Twenge
- Department of Psychology, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-4611, USA.
| | - Ryne A Sherman
- Department of Psychology, Florida Atlantic University, Boca Raton, FL, USA
| | - Brooke E Wells
- Center for Human Sexuality Studies, Widener University, Chester, PA, USA
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42
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Porseryd T, Volkova K, Reyhanian Caspillo N, Källman T, Dinnetz P, Porsh Hällström I. Persistent Effects of Developmental Exposure to 17α-Ethinylestradiol on the Zebrafish ( Danio rerio) Brain Transcriptome and Behavior. Front Behav Neurosci 2017; 11:69. [PMID: 28473760 PMCID: PMC5397488 DOI: 10.3389/fnbeh.2017.00069] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 04/03/2017] [Indexed: 11/18/2022] Open
Abstract
The synthetic estrogen 17α-ethinylestradiol (EE2) is an endocrine disrupting compound of concern due to its persistence and widespread presence in the aquatic environment. Effects of developmental exposure to low concentrations of EE2 in fish on reproduction and behavior not only persisted to adulthood, but have also been observed to be transmitted to several generations of unexposed progeny. To investigate the possible biological mechanisms of the persistent anxiogenic phenotype, we exposed zebrafish embryos for 80 days post fertilization to 0, 3, and 10 ng/L EE2 (measured concentrations 2.14 and 7.34 ng/L). After discontinued exposure, the animals were allowed to recover for 120 days in clean water. Adult males and females were later tested for changes in stress response and shoal cohesion, and whole-brain gene expression was analyzed with RNA sequencing. The results show increased anxiety in the novel tank and scototaxis tests, and increased shoal cohesion in fish exposed during development to EE2. RNA sequencing revealed 34 coding genes differentially expressed in male brains and 62 in female brains as a result of EE2 exposure. Several differences were observed between males and females in differential gene expression, with only one gene, sv2b, coding for a synaptic vesicle protein, that was affected by EE2 in both sexes. Functional analyses showed that in female brains, EE2 had significant effects on pathways connected to the circadian rhythm, cytoskeleton and motor proteins and synaptic proteins. A large number of non-coding sequences including 19 novel miRNAs were also differentially expressed in the female brain. The largest treatment effect in male brains was observed in pathways related to cholesterol biosynthesis and synaptic proteins. Circadian rhythm and cholesterol biosynthesis, previously implicated in anxiety behavior, might represent possible candidate pathways connecting the transcriptome changes to the alterations to behavior. Further the observed alteration in expression of genes involved in synaptogenesis and synaptic function may be important for the developmental modulations resulting in an anxiety phenotype. This study represents an initial survey of the fish brain transcriptome by RNA sequencing after long-term recovery from developmental exposure to an estrogenic compound.
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Affiliation(s)
- Tove Porseryd
- School of Natural Sciences, Technology and Environmental Studies, Södertörn UniversityHuddinge, Sweden
| | - Kristina Volkova
- School of Natural Sciences, Technology and Environmental Studies, Södertörn UniversityHuddinge, Sweden.,Örebro Life Science Center, School of Science and Technology, Örebro UniversityÖrebro, Sweden
| | - Nasim Reyhanian Caspillo
- School of Natural Sciences, Technology and Environmental Studies, Södertörn UniversityHuddinge, Sweden.,Örebro Life Science Center, School of Science and Technology, Örebro UniversityÖrebro, Sweden
| | - Thomas Källman
- National Bioinformatics Infrastructure Sweden, Uppsala UniversityUppsala, Sweden.,Science for Life Laboratory and Department of Medical Biochemistry and Microbiology, Uppsala UniversityUppsala, Sweden
| | - Patrik Dinnetz
- School of Natural Sciences, Technology and Environmental Studies, Södertörn UniversityHuddinge, Sweden
| | - Inger Porsh Hällström
- School of Natural Sciences, Technology and Environmental Studies, Södertörn UniversityHuddinge, Sweden
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43
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Chen Q, Gundlach M, Yang S, Jiang J, Velki M, Yin D, Hollert H. Quantitative investigation of the mechanisms of microplastics and nanoplastics toward zebrafish larvae locomotor activity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 584-585:1022-1031. [PMID: 28185727 DOI: 10.1016/j.scitotenv.2017.01.156] [Citation(s) in RCA: 397] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/22/2017] [Accepted: 01/23/2017] [Indexed: 05/08/2023]
Abstract
This study investigated the direct and indirect toxic effects of microplastics and nanoplastics toward zebrafish (Danio rerio) larvae locomotor activity. Results showed that microplastics alone exhibited no significant effects except for the upregulated zfrho visual gene expression; whereas nanoplastics inhibited the larval locomotion by 22% during the last darkness period, and significantly reduced larvae body length by 6%, inhibited the acetylcholinesterase activity by 40%, and upregulated gfap, α1-tubulin, zfrho and zfblue gene expression significantly. When co-exposed with 2μg/L 17 α-ethynylestradiol (EE2), microplastics led to alleviation on EE2's inhibition effect on locomotion, which was probably due to the decreased freely dissolved EE2 concentration. However, though nanoplastics showed stronger adsorption ability for EE2, the hypoactivity phenomenon still existed in the nanoplastics co-exposure group. Moreover, when co-exposed with a higher concentration of EE2 (20μg/L), both plastics showed an enhanced effect on the hypoactivity. Principal component analysis was performed to reduce data dimensions and four principal components were reconstituted in terms of oxidative stress, body length, nervous and visual system related genes explaining 84% of total variance. Furthermore, oxidative damage and body length reduction were evaluated to be main reasons for the hypoactivity. Therefore, nanoplastics alone suppressed zebrafish larvae locomotor activity and both plastic particles can change the larvae swimming behavior when co-exposed with EE2. This study provides new insights into plastic particles' effects on zebrafish larvae, improving the understanding of their environmental risks to the aquatic environment.
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Affiliation(s)
- Qiqing Chen
- State Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China; Institute for Environmental Research, Department of Ecosystem Analysis, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany; State Key Laboratory of Marine Geology, School of Ocean and Earth Science, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
| | - Michael Gundlach
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany
| | - Shouye Yang
- State Key Laboratory of Marine Geology, School of Ocean and Earth Science, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
| | - Jing Jiang
- State Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
| | - Mirna Velki
- Institute for Environmental Research, Department of Ecosystem Analysis, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany
| | - Daqiang Yin
- State Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China.
| | - Henner Hollert
- State Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, PR China; Institute for Environmental Research, Department of Ecosystem Analysis, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany
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44
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Miller MM, Meyer AE, Sprowles JLN, Sable HJK. Cocaine self-administration in male and female rats perinatally exposed to PCBs: Evaluating drug use in an animal model of environmental contaminant exposure. Exp Clin Psychopharmacol 2017; 25:114-124. [PMID: 28287790 PMCID: PMC5367977 DOI: 10.1037/pha0000113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Polychlorinated biphenyls (PCBs) are ubiquitous environmental toxicants known to adversely impact human health. Ortho-substituted PCBs affect the nervous system, including the brain dopaminergic system. The reinforcing effects of psychostimulants are typically modulated via the dopaminergic system, so this study used a preclinical (i.e., rodent) model to evaluate whether developmental contaminant exposure altered intravenous self-administration (IV SA) for the psychostimulant cocaine. Long-Evans rats were perinatally exposed to 6 or 3 mg/kg/day of PCBs throughout gestation and lactation and compared with nonexposed controls. Rats were trained to lever press for a food reinforcer in an operant chamber under a fixed-ratio 5 (FR5) schedule and later underwent jugular catheterization. Food reinforcers were switched for infusions of 250 μg of cocaine, but the response requirement to earn the reinforcer remained. Active lever presses and infusions were higher in males during response acquisition and maintenance. The same sex effect was observed during later sessions which evaluated responding for cocaine doses ranging from 31.25-500 μg. PCB-exposed males (not females) exhibited an increase in cocaine infusions (with a similar trend in active lever presses) during acquisition, but no PCB-related differences were observed during maintenance, examination of the cocaine dose-response relationship, or progressive ratio (PR) sessions. Overall, these results indicated perinatal PCB exposure enhanced early cocaine drug-seeking in this preclinical model of developmental contaminant exposure (particularly the males), but no differences were seen during later cocaine SA sessions. As such, additional questions regarding substance abuse proclivity may be warranted in epidemiological studies evaluating environmental contaminant exposures. (PsycINFO Database Record
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Affiliation(s)
| | - Abby E. Meyer
- Department of Psychological Science, University of North Georgia, Dahlonega, GA 30597
| | - Jenna L. N. Sprowles
- Division of Neurology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Helen J. K. Sable
- Department of Psychology, University of Memphis, Memphis, TN 38152
- Corresponding author: Helen J. K. Sable, Ph.D., University of Memphis, Department of Psychology, 400 Innovation Drive, 202 Psychology Building, Memphis, TN 38152, USA, Tel: +1-901-678-4343, Fax: +1-901-678-2579,
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45
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Ahmad MI, Usman A, Ahmad M. Computational study involving identification of endocrine disrupting potential of herbicides: Its implication in TDS and cancer progression in CRPC patients. CHEMOSPHERE 2017; 173:395-403. [PMID: 28129617 DOI: 10.1016/j.chemosphere.2017.01.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 12/10/2016] [Accepted: 01/11/2017] [Indexed: 06/06/2023]
Abstract
Several environmental pollutants, including herbicides, act as endocrine disrupting chemicals (EDCs). They can cause cancer, diabetes, obesity, metabolic diseases and developmental problems. Present study was conducted to screen 608 herbicides for evaluating their endocrine disrupting potential. The screening was carried out with the help of endocrine disruptome docking program, http://endocrinedisruptome.ki.si (Kolsek et al., 2013). This program screens the binding affinity of test ligands to 12 major nuclear receptors. As high as 252 compounds were capable of binding to at least three receptors wherein 10 of them showed affinity with at-least six receptors based on this approach. The latter were ranked as potent EDCs. Majority of the screened herbicides were acting as antagonists of human androgen receptor (hAR). A homology modeling approach was used to construct the three dimensional structure of hAR to understand their binding mechanism. Docking results reveal that the most potent antiandrogenic herbicides would bind to hydrophobic cavity of modeled hAR and may lead to testicular dysgenesis syndrome (TDS) on fetal exposure. However, on binding to T877 mutant AR they seem to act as agonists in castration-resistant prostate cancer (CRPC) patients.
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Affiliation(s)
- Md Irshad Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India
| | - Afia Usman
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India
| | - Masood Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, U.P., 202002, India.
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Miralles-Cuevas S, Oller I, Agüera A, Llorca M, Sánchez Pérez JA, Malato S. Combination of nanofiltration and ozonation for the remediation of real municipal wastewater effluents: Acute and chronic toxicity assessment. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:442-451. [PMID: 26988902 DOI: 10.1016/j.jhazmat.2016.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 03/01/2016] [Accepted: 03/05/2016] [Indexed: 06/05/2023]
Abstract
The purpose of this work was to study the ozonation of nanofiltration (NF) retentates of real municipal wastewater treatment plant (MWTP) effluents for removal of microcontaminants (MCs) and toxicity. MCs present in these effluents were monitored using LC-MS/MS. Acute and chronic toxicity was addressed with Daphnia magna, Vibrio fischeri and Selenastrum capricornutum. Up to 40 MCs were found, most of them in concentrations over 100ng/L. 90% degradation of the sum of MCs was the critical point of comparison. When the NF membrane system was applied to MWTP effluents, treatment of NF rejection needed 2.75-4.5g O3/m3,4.5g O3/m3, which is less than 50% of the ozone needed for direct treatment of MWTP effluent. Treatment time (lower than 11min) was not influenced by MCs concentration, at least in the range tested (25-190μg/L). It has been demonstrated that consumption of ozone increased with organic load and inorganic content of different real effluents. MCs were eliminated by ozonation but acute toxicity (against V. fischeri and D. magna) increased. Chronic toxicity results were different and contrary in D. magna and S. capricornutum, due to the generation of new transformation products more toxic to D. magna than the parent contaminants. S. capricornutum inhibition percentage decreased in all cases after ozonation treatment. According to these results, before ozonation is implemented in MWTPs for the removal of MCs, the transformation products must first be examined and the treatment time or ozone doses should be extended to complete degradation if necessary.
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Affiliation(s)
- S Miralles-Cuevas
- Laboratorio de Investigaciones Medioambientales en Zonas Áridas, LIMZA. EUDIM, University of Tarapacá, Avda. General Velásquez 1775, Arica, Chile
| | - I Oller
- Plataforma Solar de Almería-CIEMAT, Ctra Senés km 4, 04200 Tabernas Almería, Spain; CIESOL, Joint Centre of the University of Almería-CIEMAT, 04120 Almería, Spain
| | - A Agüera
- CIESOL, Joint Centre of the University of Almería-CIEMAT, 04120 Almería, Spain
| | - M Llorca
- Catalan Institute for Water Research (ICRA), Girona, Spain
| | - J A Sánchez Pérez
- CIESOL, Joint Centre of the University of Almería-CIEMAT, 04120 Almería, Spain
| | - S Malato
- Plataforma Solar de Almería-CIEMAT, Ctra Senés km 4, 04200 Tabernas Almería, Spain; CIESOL, Joint Centre of the University of Almería-CIEMAT, 04120 Almería, Spain.
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Steter JR, Brillas E, Sirés I. On the selection of the anode material for the electrochemical removal of methylparaben from different aqueous media. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.125] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nájera-Aguilar HA, Gutiérrez-Hernández RF, González de Los Santos R, García-Lara C, Méndez-Novelo R, Rojas-Valencia MN. Degradation of gestodene (GES)-17α-ethinylestradiol (EE2) mixture by electrochemical oxidation. JOURNAL OF WATER AND HEALTH 2016; 14:980-988. [PMID: 27959876 DOI: 10.2166/wh.2016.104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Evidence of the negative effects of several pharmaceutical molecules, such as hormones and steroids, on the environment can be observed throughout the world. This paper presents the results of the anodic oxidation of the mixture of gestodene steroid hormones and 17 α-ethinylestradiol present in aqueous medium. The tests were conducted in an undivided cell containing a working volume of 50 mL, using a Na2SO4 solution as support electrolyte and boron-doped diamond electrodes. The experiments were adjusted to the structure of a 33 factorial design. The evaluated factors were: support electrolyte concentration (0.02, 0.05, and 0.10 M), pH of the reaction media (2, 3, and 4), and current density (16, 32, and 48 mA cm-2). Under the optimum conditions (0.02 M Na2SO4, pH 4, and current density of 32 mA cm-2), the degradation of at least 93% of the initial concentration of gestodene and 17α-ethinylestradiol was reached in a reaction time of 5 and 10 min, respectively. The complete degradation of both molecules required 15 min of reaction. Under these conditions, the degradation profile of the pharmaceutical mixture as each one of the active ingredients, followed a pseudo-first order kinetic behavior (kmix = 0.0321, kGES = 0.4206, and kEE2 = 0.3209 min-1).
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Affiliation(s)
- Hugo Alejandro Nájera-Aguilar
- Escuela de Ingeniería Ambiental, Facultad de Ingeniería de la Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. No. 1150, Colonia Lajas Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29039, México
| | - Rubén Fernando Gutiérrez-Hernández
- Departamento de Ingeniería Química y Bioquímica, Instituto Tecnológico de Tapachula, Km. 2 carretera a Puerto Madero, Tapachula, Chiapas C.P. 30700, México E-mail:
| | - Rocío González de Los Santos
- Escuela de Ingeniería Ambiental, Facultad de Ingeniería de la Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. No. 1150, Colonia Lajas Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29039, México
| | - Carlos García-Lara
- Escuela de Ingeniería Ambiental, Facultad de Ingeniería de la Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. No. 1150, Colonia Lajas Maciel, Tuxtla Gutiérrez, Chiapas C.P. 29039, México
| | - Roger Méndez-Novelo
- Facultad de Ingeniería, Universidad Autónoma de Yucatán, Av. Industrias no contaminantes por Periférico Nte. s/n, Mérida, Yucatán, México
| | - María Neftalí Rojas-Valencia
- Universidad Nacional Autónoma de México, Instituto de Ingeniería, Coordinación de Ingeniería Ambiental, Cd. de México C.P. 04510, México
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Johnston TK, Perkins E, Ferguson DC, Cropek DM. Tissue explant coculture model of the hypothalamic-pituitary-gonadal-liver axis of the fathead minnow (Pimephales promelas) as a predictive tool for endocrine disruption. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:2530-2541. [PMID: 26931821 DOI: 10.1002/etc.3415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 10/19/2015] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
Endocrine-disrupting compounds (EDCs) can impact the reproductive system by interfering with the hypothalamic-pituitary-gonadal (HPG) axis. Although in vitro testing methods have been developed to screen chemicals for endocrine disruption, extrapolation of in vitro responses to in vivo action shows inconsistent accuracy. The authors describe a tissue coculture of the fathead minnow (Pimephales promelas) HPG axis and liver (HPG-L) as a tissue explant model that mimics in vivo results. Brain (hypothalamus), pituitary, gonad, and liver tissue explants from adult fish were examined for function both individually and in coculture to determine combinations and conditions that could replicate in vivo behavior. Only cocultures had the ability to respond to an EDC, trenbolone, similarly to in vivo studies, based on estradiol, testosterone, and vitellogenin production trends, where lower exposure doses suppressed hormone production but higher doses increased production, resulting in distinctive U-shaped curves. These data suggest that a coculture system with all components of the HPG-L axis can be used as a link between in vitro and in vivo studies to predict endocrine system disruption in whole organisms. This tissue-based HPG-L system acts as a flexible deconstructed version of the in vivo system for better control and examination of the minute changes in system operation and response on EDC exposure with options to isolate, interrogate, and recombine desired components. Environ Toxicol Chem 2016;35:2530-2541. Published 2016 Wiley Periodicals Inc. on behalf of SETAC. This article is a US Government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Theresa K Johnston
- US Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois
- Department of Comparative Biosciences, University of Illinois, Urbana, Illinois, USA
| | - Edward Perkins
- US Army Corps of Engineers, Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi
| | - Duncan C Ferguson
- Department of Comparative Biosciences, University of Illinois, Urbana, Illinois, USA
| | - Donald M Cropek
- US Army Corps of Engineers, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, Illinois.
- Department of Comparative Biosciences, University of Illinois, Urbana, Illinois, USA.
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50
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Rich AL, Phipps LM, Tiwari S, Rudraraju H, Dokpesi PO. The Increasing Prevalence in Intersex Variation from Toxicological Dysregulation in Fetal Reproductive Tissue Differentiation and Development by Endocrine-Disrupting Chemicals. ENVIRONMENTAL HEALTH INSIGHTS 2016; 10:163-171. [PMID: 27660460 PMCID: PMC5017538 DOI: 10.4137/ehi.s39825] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
An increasing number of children are born with intersex variation (IV; ambiguous genitalia/hermaphrodite, pseudohermaphroditism, etc.). Evidence shows that endocrine-disrupting chemicals (EDCs) in the environment can cause reproductive variation through dysregulation of normal reproductive tissue differentiation, growth, and maturation if the fetus is exposed to EDCs during critical developmental times in utero. Animal studies support fish and reptile embryos exhibited IV and sex reversal when exposed to EDCs. Occupational studies verified higher prevalence of offspring with IV in chemically exposed workers (male and female). Chemicals associated with endocrine-disrupting ability in humans include organochlorine pesticides, poly-chlorinated biphenyls, bisphenol A, phthalates, dioxins, and furans. Intersex individuals may have concurrent physical disorders requiring lifelong medical intervention and experience gender dysphoria. An urgent need exists to determine which chemicals possess the greatest risk for IV and the mechanisms by which these chemicals are capable of interfering with normal physiological development in children.
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Affiliation(s)
- Alisa L. Rich
- University of North Texas Health Science Center, Department of Environmental and Occupational Health Science, Fort Worth, TX, USA
- World Health Organization Chemical Risk Assessment Network Member, Geneva, Switzerland
| | - Laura M. Phipps
- University of North Texas Health Science Center, Department of Environmental and Occupational Health Science, Fort Worth, TX, USA
| | - Sweta Tiwari
- University of North Texas Health Science Center, Department of Environmental and Occupational Health Science, Fort Worth, TX, USA
| | - Hemanth Rudraraju
- University of North Texas Health Science Center, Department of Environmental and Occupational Health Science, Fort Worth, TX, USA
| | - Philip O. Dokpesi
- University of North Texas Health Science Center, Department of Environmental and Occupational Health Science, Fort Worth, TX, USA
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