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Fathi MA, Dan S, Abdelsalam AM, Chunmei L. Involvement of glyphosate in disruption of biotransformation P450 enzymes and hepatic lipid metabolism in chicken. Anim Biotechnol 2023; 34:4957-4967. [PMID: 37210632 DOI: 10.1080/10495398.2023.2214601] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The current study investigated the potentially harmful consequences of pure glyphosate or Roundup® on CYP family members and lipid metabolism in newly hatched chicks. On the sixth day, 225 fertilized eggs were randomly divided into three treatments: (1) the control group injected with deionized water, (2) the glyphosate group injected with 10 mg pure glyphosate/Kg egg mass and (3) the Roundup group injected 10 mg the active ingredient glyphosate in Roundup®/Kg egg. The results of the study revealed a reduction in hatchability in chicks treated with Roundup®. Moreover, change of Lipid concentration in serum and the liver-treated groups. Additionally, increased liver function enzymes and increased oxidative stress in the glyphosate and Roundup® groups. Furthermore, liver tissues showed histological changes and several lipid deposits in glyphosate-treated groups. Hepatic CYP1A2 and CYP1A4 expressions were significantly increased (p < .05) after glyphosate exposure, and suppression of CYP1C1 mRNA expression was significant (p < .05) after Roundup® exposure. The pro-inflammatory cytokines genes IFN-γ and IL-1β expression were significantly increased (p < .05) after Roundup® exposure. In addition, there were significant differences in the levels of expression genes which are related to lipid synthesis or catabolism in the liver. In conclusion, in ovo glyphosate exposure caused disruption of biotransformation, pro-inflammatory and lipid metabolism in chicks.
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Affiliation(s)
- Mohamed Ahmed Fathi
- Jiangsu Joint International Research Laboratory of Animal Gastrointestinal Genomes, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, P. R. China
- Agricultural Research Centre, Animal Production Research Institute, Dokki, Giza, Egypt
| | - Shen Dan
- Jiangsu Joint International Research Laboratory of Animal Gastrointestinal Genomes, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, P. R. China
| | | | - Li Chunmei
- Jiangsu Joint International Research Laboratory of Animal Gastrointestinal Genomes, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, P. R. China
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Rana I, Nguyen PK, Rigutto G, Louie A, Lee J, Smith MT, Zhang L. Mapping the key characteristics of carcinogens for glyphosate and its formulations: A systematic review. CHEMOSPHERE 2023; 339:139572. [PMID: 37474029 DOI: 10.1016/j.chemosphere.2023.139572] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
Glyphosate was classified as a probable human carcinogen (Group 2A) by the International Agency for Research on Cancer (IARC) partially due to strong mechanistic evidence in 2015. Since then, numerous studies of glyphosate and its formulations (GBF) have emerged. These studies can be evaluated for cancer hazard identification with the newly described ten key characteristics (KC) of carcinogens approach. Our objective was to assess all in vivo, ex vivo, and in vitro mechanistic studies of human and experimental animals (mammals) that compared exposure to glyphosate/GBF with low/no exposure counterparts for evidence of the ten KCs. A protocol with our methods adhering to PRISMA guidelines was registered a priori (INPLASY202180045). Two blinded reviewers screened all in vivo, ex vivo, and in vitro studies of glyphosate/GBF exposure in humans/mammals reporting any KC-related outcome available in PubMed before August 2021. Studies that met inclusion criteria underwent data extraction conducted in duplicate for each KC outcome reported along with key aspects of internal/external validity, results, and reference information. These data were used to construct a matrix that was subsequently analyzed in the program R to conduct strength of evidence and quality assessments. Of the 2537 articles screened, 175 articles met inclusion criteria, from which we extracted >50,000 data points related to KC outcomes. Data analysis revealed strong evidence for KC2, KC4, KC5, KC6, KC8, limited evidence for KC1 and KC3, and inadequate evidence for KC7, KC9, and KC10. Notably, our in-depth quality analyses of genotoxicity (KC2) and endocrine disruption (KC8) revealed strong and consistent positive findings. For KC2, we found: 1) studies conducted in humans and human cells provided stronger positive evidence than counterpart animal models; 2) GBF elicited a stronger effect in both human and animal systems when compared to glyphosate alone; and 3) the highest quality studies in humans and human cells consistently revealed strong evidence of genotoxicity. Our analysis of KC8 indicated that glyphosate's ability to modulate hormone levels and estrogen receptor activity is sensitive to both exposure concentration and formulation. The modulations observed provide clear evidence that glyphosate interacts with receptors, alters receptor activation, and modulates the levels and effects of endogenous ligands (including hormones). Our findings strengthen the mechanistic evidence that glyphosate is a probable human carcinogen and provide biological plausibility for previously reported cancer associations in humans, such as non-Hodgkin lymphoma. We identified potential molecular interactions and subsequent key events that were used to generate a probable pathway to lymphomagenesis.
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Affiliation(s)
- Iemaan Rana
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Patton K Nguyen
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Gabrielle Rigutto
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Allen Louie
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Jane Lee
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Martyn T Smith
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, United States.
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Sandoval-Rivas D, Morales DV, Hepp MI. Toxicity evaluation of Pinus radiata D.Don bark wax for potential cosmetic application. Food Chem Toxicol 2023; 178:113896. [PMID: 37339695 DOI: 10.1016/j.fct.2023.113896] [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: 09/05/2022] [Revised: 04/25/2023] [Accepted: 06/12/2023] [Indexed: 06/22/2023]
Abstract
Radiata pine bark is a widely available organic waste, requiring alternative uses due to its environmental impact on soil, fauna, and forest fires. Pine bark waxes could be used as cosmetic substitutes, but their toxicity requires evaluation since pine bark may contain toxic substances or xenobiotics, depending on the extraction process. This study evaluates the toxicity of radiata pine bark waxes obtained through various extraction methods on human skin cells grown in vitro. The assessment includes using XTT to evaluate mitochondrial activity, violet crystal dye to assess cell membrane integrity, and ApoTox-Glo triple assay to measure cytotoxicity, viability, and apoptosis signals. Pine bark waxes extracted via T3 (acid hydrolysis and petroleum ether incubation) and T9 (saturated steam cycle, alkaline hydrolysis, and petroleum ether incubation) exhibit non-toxicity up to 2% concentration, making them a potential substitute for petroleum-based cosmetic materials. Integrating the forestry and cosmetic industries through pine bark wax production under circular economy principles could promote development while replacing petroleum-based materials. Extraction methodology affects pine bark wax toxicity in human skin cells due to the retention of xenobiotic compounds including methyl 4-ketohex-5-enoate; 1-naphthalenol; dioctyl adipate; eicosanebioic acid dimethyl ester; among others. Future research will investigate whether the extraction methodology alters the molecular structure of the bark, affecting the release of toxic compounds in the wax mixture.
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Affiliation(s)
- Daniel Sandoval-Rivas
- Laboratorio de Investigación en Ciencias Biomédicas, Departamento de Ciencias Básicas y Morfología, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, 4090541, Chile; Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Lientur 1457, Concepción, Chile
| | - Daniela V Morales
- Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, 4090541, Chile; Centro de energía, Universidad Católica de la Santísima Concepción, Concepción, 4090541, Chile
| | - Matías I Hepp
- Laboratorio de Investigación en Ciencias Biomédicas, Departamento de Ciencias Básicas y Morfología, Facultad de Medicina, Universidad Católica de la Santísima Concepción, Concepción, 4090541, Chile.
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de Batista DG, de Batista EG, Miragem AA, Ludwig MS, Heck TG. Disturbance of cellular calcium homeostasis plays a pivotal role in glyphosate-based herbicide-induced oxidative stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:9082-9102. [PMID: 36441326 DOI: 10.1007/s11356-022-24361-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
Glyphosate-based herbicides (GBHs) are the most worldwide used pesticides. The wide application of GBHs contaminates the soil and, consequently, water and food resources reaching human consumption. GBHs induce oxidative stress in non-target organisms, leading to a pro-inflammatory and pro-apoptotic cellular status, promoting tissue dysfunction and, thus, metabolic and neurobehavioral changes. This review presents evidence of oxidative damage induced by GBHs and the mechanism of cell damage and health consequences. To summarize, exposure to GBHs may induce disorders in calcium homeostasis related to the activation of ion channels. Also, alterations in pathways related to redox state regulation must have a primordial role in oxidative stress caused by GBHs.
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Affiliation(s)
- Diovana Gelati de Batista
- Research Group in Physiology, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil.
- Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil.
- Research Group in Cell Stress Response, Federal Institute of Education, Science and Technology Farroupilha, Rio Grande Do Sul State, Santa Rosa, Brazil.
- Postgraduate Program in Mathematical and Computational Modeling, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil.
| | - Edivania Gelati de Batista
- Research Group in Cell Stress Response, Federal Institute of Education, Science and Technology Farroupilha, Rio Grande Do Sul State, Santa Rosa, Brazil
| | - Antônio Azambuja Miragem
- Research Group in Cell Stress Response, Federal Institute of Education, Science and Technology Farroupilha, Rio Grande Do Sul State, Santa Rosa, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil
- Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil
- Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil
- Postgraduate Program in Mathematical and Computational Modeling, Regional University of Northwestern Rio Grande Do Sul State, Rio Grande Do Sul State, Ijuí, Brazil
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Overview of Environmental and Health Effects Related to Glyphosate Usage. SUSTAINABILITY 2022. [DOI: 10.3390/su14116868] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Since the introduction of glyphosate (N-(phosphomethyl) glycine) in 1974, it has been the most used nonselective and broad-spectrum herbicide around the world. The widespread use of glyphosate and glyphosate-based herbicides is due to their low-cost efficiency in killing weeds, their rapid absorption by plants, and the general mistaken perception of their low toxicity to the environment and living organisms. As a consequence of the intensive use and accumulation of glyphosate and its derivatives on environmental sources, major concerns about the harmful side effects of glyphosate and its metabolites on human, plant, and animal health, and for water and soil quality, are emerging. Glyphosate can reach water bodies by soil leaching, runoff, and sometimes by the direct application of some approved formulations. Moreover, glyphosate can reach nontarget plants by different mechanisms, such as spray application, release through the tissue of treated plants, and dead tissue from weeds. As a consequence of this nontarget exposure, glyphosate residues are being detected in the food chains of diverse products, such as bread, cereal products, wheat, vegetable oil, fruit juice, beer, wine, honey, eggs, and others. The World Health Organization reclassified glyphosate as probably carcinogenic to humans in 2015 by the IARC. Thus, many review articles concerning different glyphosate-related aspects have been published recently. The risks, disagreements, and concerns regarding glyphosate usage have led to a general controversy about whether glyphosate should be banned, restricted, or promoted. Thus, this review article makes an overview of the basis for scientists, regulatory agencies, and the public in general, with consideration to the facts on and recommendations for the future of glyphosate usage.
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Martins-Gomes C, Silva TL, Andreani T, Silva AM. Glyphosate vs. Glyphosate-Based Herbicides Exposure: A Review on Their Toxicity. J Xenobiot 2022; 12:21-40. [PMID: 35076536 PMCID: PMC8788447 DOI: 10.3390/jox12010003] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 12/25/2022] Open
Abstract
Glyphosate-based herbicide has been the first choice for weed management worldwide since the 1970s, mainly due to its efficacy and reported low toxicity, which contributed to its high acceptance. Many of the recent studies focus solely on the persistence of pesticides in soils, air, water or food products, or even on the degree of exposure of animals, since their potential hazards to human health have raised concerns. Given the unaware exposure of the general population to pesticides, and the absence of a significant number of studies on occupational hazards, new glyphosate-induced toxicity data obtained for both residual and acute doses should be analyzed and systematized. Additionally, recent studies also highlight the persistence and toxicity of both glyphosate metabolites and surfactants present in herbicide formulations. To renew or ban the use of glyphosate, recently published studies must be taken into account, aiming to define new levels of safety for exposure to herbicide, its metabolites, and the toxic excipients of its formulations. This review aims to provide an overview of recent publications (2010–present) on in vitro and in vivo studies aimed at verifying the animal toxicity induced by glyphosate, its metabolite aminomethylphosphonic acid (AMPA) and glyphosate-based formulations, evaluated in various experimental models. Apart from glyphosate-induced toxicity, recent data concerning the role of surfactants in the toxicity of glyphosate-based formulations are discussed.
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Affiliation(s)
- Carlos Martins-Gomes
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (T.L.S.); (T.A.)
- Department of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Correspondence: (C.M.-G.); (A.M.S.); Tel.: +351-259-350-921(A.M.S.)
| | - Tânia L. Silva
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (T.L.S.); (T.A.)
- Department of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
| | - Tatiana Andreani
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (T.L.S.); (T.A.)
| | - Amélia M. Silva
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal; (T.L.S.); (T.A.)
- Department of Biology and Environment, School of Life Sciences and Environment, University of Trás-os-Montes and Alto Douro (UTAD), 5001-801 Vila Real, Portugal
- Correspondence: (C.M.-G.); (A.M.S.); Tel.: +351-259-350-921(A.M.S.)
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7
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Fathi MA, Han G, Kang R, Shen D, Shen J, Li C. Disruption of cytochrome P450 enzymes in the liver and small intestine in chicken embryos in ovo exposed to glyphosate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:16865-16875. [PMID: 32144705 DOI: 10.1007/s11356-020-08269-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Glyphosate is the active component of several commercial formulations as in Roundup®. The present study was investigated the toxic effects of pure glyphosate or Roundup® on the liver and small intestine of chick embryos. On day 6, a total of 180 fertile eggs injected with deionized water (control group), 10 mg pure glyphosate, or 10 mg of the active ingredient glyphosate in Roundup®/kg egg mass. The results showed an increase in relative weights of the liver in embryos that treated with Roundup®. Furthermore, oxidative stress was observed in the embryos treated with glyphosate or Roundup®, increased total superoxide dismutase, and content of malondialdehyde in the liver and intestine; moreover, decrease of glutathione peroxidase in the liver with increased in the intestine compared with the control. Besides, glutamic-pyruvic transaminase was increased in Roundup® group compared with other groups. Moreover, histopathological alterations in the liver and intestine tissues were observed in treated groups. Suppression of hepatic CYP1A2, CYP1A4, CYP1B1, and MDR1 mRNA expression after exposed to Roundup®. Furthermore, inhibition of CYP1A4 in the duodenum, CYP1A4, and MRP2 in the jejunum in embryos exposed to glyphosate or Roundup®. In addition, glyphosate treatment caused an increase of CYP3A5, CYP1C1, and IFNY mRNA expression in the jejunum and CYP1A2 expression in the ileum, while IFN-Y gene increase in embryos treated with Roundup®. In conclusion, in ovo exposure to glyphosate caused histopathological alterations and induced oxidative stress in the liver and small intestines. Moreover, the expression of cytochrome P450, MDR1, and MRP2 transporters was also modulated in the liver and small intestines for chick embryos.
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Affiliation(s)
- Mohamed Ahmed Fathi
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China
- Animal Production Research Institute, Agriculture Research Centre, Dokki, Giza, 12618, Egypt
| | - Guofeng Han
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Ruifen Kang
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Dan Shen
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Jiakun Shen
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Chunmei Li
- Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, Jiangsu, People's Republic of China.
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Agostini LP, Dettogni RS, Dos Reis RS, Stur E, Dos Santos EVW, Ventorim DP, Garcia FM, Cardoso RC, Graceli JB, Louro ID. Effects of glyphosate exposure on human health: Insights from epidemiological and in vitro studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135808. [PMID: 31972943 DOI: 10.1016/j.scitotenv.2019.135808] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/18/2019] [Accepted: 11/26/2019] [Indexed: 05/27/2023]
Abstract
Glyphosate (GLY) is a broad-spectrum, post-emergent, non-selective and synthetic universal herbicide, whose commercial formulations are referred to as glyphosate-based-herbicides (GBHs). These chemicals and their metabolites can be found in soil, air, water, as well as groundwater and food products. This review summarizes to summarize current in vitro and epidemiological studies investigating the effects of GLY exposure on human health. Recent human cell studies have reported several GLY and GBH toxicological effects and have contributed to a better understanding of the deleterious consequences associated with their exposure. However, these detrimental effects are dependent on the cell type, chemical composition, as well as magnitude and time of exposure, among other factors. Moreover, the deleterious effects of GLY exposure on human health were observed in epidemiological studies; however, most of these studies have not determined the GLY dosage to confirm a direct effect. While GLY toxicity is clear in human cells, epidemiological studies investigating individuals exposed to different levels of GLY have reported contradictory data. Therefore, based on currently available in vitro and epidemiological data, it is not possible to confirm the complete safety of GLY use, which will require additional comprehensive studies in animal models and humans.
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Affiliation(s)
- Lidiane P Agostini
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Raquel S Dettogni
- Endocrinology and Cell Toxicology Laboratory, Department of Morphology, Federal University of Espirito Santo, Vitoria, Brazil.
| | - Raquel S Dos Reis
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Elaine Stur
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Eldamária V W Dos Santos
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Diego P Ventorim
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Fernanda M Garcia
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Rodolfo C Cardoso
- Laboratory of Reproductive Neuroendocrinology, Department of Animal Science, Texas A&M University, United States of America
| | - Jones B Graceli
- Endocrinology and Cell Toxicology Laboratory, Department of Morphology, Federal University of Espirito Santo, Vitoria, Brazil
| | - Iúri D Louro
- Human and Molecular Genetics Center, Department of Biological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
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Portier CJ. A comprehensive analysis of the animal carcinogenicity data for glyphosate from chronic exposure rodent carcinogenicity studies. Environ Health 2020; 19:18. [PMID: 32050978 PMCID: PMC7014589 DOI: 10.1186/s12940-020-00574-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/06/2020] [Indexed: 05/15/2023]
Abstract
Since the introduction of glyphosate-tolerant genetically-modified plants, the global use of glyphosate has increased dramatically making it the most widely used pesticide on the planet. There is considerable controversy concerning the carcinogenicity of glyphosate with scientists and regulatory authorities involved in the review of glyphosate having markedly different opinions. One key aspect of these opinions is the degree to which glyphosate causes cancer in laboratory animals after lifetime exposure. In this review, twenty-one chronic exposure animal carcinogenicity studies of glyphosate are identified from regulatory documents and reviews; 13 studies are of sufficient quality and detail to be reanalyzed in this review using trend tests, historical control tests and pooled analyses. The analyses identify 37 significant tumor findings in these studies and demonstrate consistency across studies in the same sex/species/strain for many of these tumors. Considering analyses of the individual studies, the consistency of the data across studies, the pooled analyses, the historical control data, non-neoplastic lesions, mechanistic evidence and the associated scientific literature, the tumor increases seen in this review are categorized as to the strength of the evidence that glyphosate causes these cancers. The strongest evidence shows that glyphosate causes hemangiosarcomas, kidney tumors and malignant lymphomas in male CD-1 mice, hemangiomas and malignant lymphomas in female CD-1 mice, hemangiomas in female Swiss albino mice, kidney adenomas, liver adenomas, skin keratoacanthomas and skin basal cell tumors in male Sprague-Dawley rats, adrenal cortical carcinomas in female Sprague-Dawley rats and hepatocellular adenomas and skin keratocanthomas in male Wistar rats.
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Affiliation(s)
- Christopher J Portier
- Rollins School of Public Health, Emory University, Atlanta, GA, USA.
- Department of Toxicogenomics, Maastricht University, Maastricht, Netherlands.
- CJP Consulting, Seattle, Washington, USA.
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Fathi MA, Abdelghani E, Shen D, Ren X, Dai P, Li Z, Tang Q, Li Y, Li C. Effect of in ovo glyphosate injection on embryonic development, serum biochemistry, antioxidant status and histopathological changes in newly hatched chicks. J Anim Physiol Anim Nutr (Berl) 2019; 103:1776-1784. [PMID: 31453655 DOI: 10.1111/jpn.13181] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 07/04/2019] [Accepted: 07/20/2019] [Indexed: 01/26/2023]
Abstract
This study aimed to investigate the potential toxic effects of pure glyphosate or Roundup® on hatchability, serum biochemistry and histopathological observation of the liver and kidney of newly hatched chicks. On day six, a total of 225 fertile eggs were obtained from Huafeng breeder hens. The eggs were randomly divided into three treatments: (a) the control group injected with deionized water, (b) the glyphosate group injected 10 mg pure glyphosate/Kg egg mass and (c) the Roundup group injected 10 mg the active ingredient glyphosate in Roundup® /Kg egg. The results showed a decrease of hatchability rate in chicks treated with Roundup® (66%). In addition, no significant change was observed in body weights, yolk sac weight and relative weight organs except the liver and kidney were significantly increased with groups treated with glyphosate and Roundup® compared to the control group. The results showed that serum protein profiles were linearly significantly increased of serum phosphor, uric acid, aspirate aminotransferase, alanine transaminase and alkaline phosphatase in groups treated with Roundup® , as well as the serum concentrations of triglyceride altered after treatment with glyphosate. Furthermore, oxidative stress was observed in the treated chicks, the glyphosate and Roundup® induced changes of the content of malondialdehyde in both the liver and kidney, moreover decrease of glutathione peroxidase, total superoxide dismutase and catalase activity in the kidney tissue and serum. Additionally, changes also happened in the histomorphology of the liver and kidney tissue of the treated chicks. It can be concluded that Roundup® as a probable decrease of hatchability. Exposure to glyphosate alone or Roundup® caused liver and kidney histopathological alterations, serum parameters imbalances and oxidative stress, also induced a variety of liver and kidney biochemical alterations that might impair normal organ functioning in newly hatched chicks.
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Affiliation(s)
- Mohamed Ahmed Fathi
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Ezaldeen Abdelghani
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Dan Shen
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Xin Ren
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Pengyuan Dai
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Zhaojan Li
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Qian Tang
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Yansen Li
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Chunmei Li
- National Experimental Teaching Demonstration Center of Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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Zhang L, Rana I, Shaffer RM, Taioli E, Sheppard L. Exposure to glyphosate-based herbicides and risk for non-Hodgkin lymphoma: A meta-analysis and supporting evidence. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2019; 781:186-206. [PMID: 31342895 PMCID: PMC6706269 DOI: 10.1016/j.mrrev.2019.02.001] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 02/02/2019] [Accepted: 02/05/2019] [Indexed: 02/01/2023]
Abstract
Glyphosate is the most widely used broad-spectrum systemic herbicide in the world. Recent evaluations of the carcinogenic potential of glyphosate-based herbicides (GBHs) by various regional, national, and international agencies have engendered controversy. We investigated whether there was an association between high cumulative exposures to GBHs and increased risk of non-Hodgkin lymphoma (NHL) in humans. We conducted a new meta-analysis that includes the most recent update of the Agricultural Health Study (AHS) cohort published in 2018 along with five case-control studies. Using the highest exposure groups when available in each study, we report the overall meta-relative risk (meta-RR) of NHL in GBH-exposed individuals was increased by 41% (meta-RR = 1.41, 95% confidence interval, CI: 1.13-1.75). For comparison, we also performed a secondary meta-analysis using high-exposure groups with the earlier AHS (2005), and we calculated a meta-RR for NHL of 1.45 (95% CI: 1.11-1.91), which was higher than the meta-RRs reported previously. Multiple sensitivity tests conducted to assess the validity of our findings did not reveal meaningful differences from our primary estimated meta-RR. To contextualize our findings of an increased NHL risk in individuals with high GBH exposure, we reviewed publicly available animal and mechanistic studies related to lymphoma. We documented further support from studies of malignant lymphoma incidence in mice treated with pure glyphosate, as well as potential links between glyphosate / GBH exposure and immunosuppression, endocrine disruption, and genetic alterations that are commonly associated with NHL or lymphomagenesis. Overall, in accordance with findings from experimental animal and mechanistic studies, our current meta-analysis of human epidemiological studies suggests a compelling link between exposures to GBHs and increased risk for NHL.
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Affiliation(s)
- Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, USA.
| | - Iemaan Rana
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, Berkeley, USA
| | - Rachel M Shaffer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, USA
| | - Emanuela Taioli
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, USA; Department of Biostatistics, University of Washington, Seattle, USA
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12
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Paumgartten FJR. To be or not to be a carcinogen; delving into the glyphosate classification controversy. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000118217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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13
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Ren X, Li R, Liu J, Huang K, Wu S, Li Y, Li C. Effects of glyphosate on the ovarian function of pregnant mice, the secretion of hormones and the sex ratio of their fetuses. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:833-841. [PMID: 30245445 DOI: 10.1016/j.envpol.2018.09.049] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 09/03/2018] [Accepted: 09/07/2018] [Indexed: 06/08/2023]
Abstract
Glyphosate is the active ingredient of the commercial formulation Roundup®, which is used worldwide. This study aimed to investigate the toxic effects of pure glyphosate or Roundup® on pregnant mice and their fetuses during pregnancy. From gestation days (GDs) 1-19, ICR mice were orally administered distilled water, 0.5% glyphosate solution or 0.5%-glyphosate Roundup® solution. The ovaries and serum were collected at GD19. The results showed decreases in body weight gain and, ovary and liver weight in glyphosate-treated mice. Additionally, histopathological alterations in the ovary including increased atretic follicles, interstitial fibrosis and decreased mature follicles were observed in the groups treated with glyphosate. The serum concentrations of both progesterone and estrogen were markedly altered after glyphosate exposure, and there were also changes in the expression of GnRH, LHR, FSHR, 3β-HSD and Cyp19a1 genes at the hypothalamic-pituitary-ovarian axis. Furthermore, oxidative stress was observed in the treated mice, increasing the activity of T-AOC, CAT and GSH-Px, as well as the MDA content in both the serum and ovary. With regard to litters, the sex ratio was significantly altered by pure glyphosate. These results show that glyphosate is able to cause several effects on pregnant mice, such as ovarian failure, interference with hormone secretion by affecting the steroidogenesis-related gene expression, and oxidative stress. The sex ratio of litters was also influenced by prenatal exposure to pure glyphosate.
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Affiliation(s)
- Xin Ren
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ruonan Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Junze Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kai Huang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Sheng Wu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Chunmei Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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14
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Szekacs I, Farkas E, Gemes BL, Takacs E, Szekacs A, Horvath R. Integrin targeting of glyphosate and its cell adhesion modulation effects on osteoblastic MC3T3-E1 cells revealed by label-free optical biosensing. Sci Rep 2018; 8:17401. [PMID: 30479368 PMCID: PMC6258691 DOI: 10.1038/s41598-018-36081-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 10/26/2018] [Indexed: 12/14/2022] Open
Abstract
This study is a discovery of interesting and far reaching properties of the world leading herbicide active ingredient glyphosate. Here we demonstrate the cell adhesion-modifying characteristics of glyphosate affecting cellular interactions via Arg-Gly-Asp (RGD)-dependent integrins. This conclusion was supported by the observations that a glyphosate surface coating induced integrin-specific cell adhesion, while glyphosate in solution inhibited cell adhesion on an RGD-displaying surface. A sensitive, real-time, label-free, whole cell approach was used to monitor the cell adhesion kinetic processes with excellent data quality. The half maximal inhibitory concentration (IC50) for glyphosate was determined to be 0.47 ± 0.07% (20.6 mM) in serum-free conditions. A three-dimensional dissociation constant of 0.352 mM was calculated for the binding between RGD-specific integrins in intact MC3T3-E1 cells and soluble glyphosate by measuring its competition for RGD-motifs binding, while the affinity of those RGD-specific integrins to the RGD-motifs was 5.97 µM. The integrin-targeted affinity of glyphosate was proven using competitive binding assays to recombinant receptor αvβ3. The present study shows not only ligand-binding properties of glyphosate, but also illustrates its remarkable biomimetic power in the case of cell adhesion.
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Affiliation(s)
- Inna Szekacs
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
| | - Eniko Farkas
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary
- Subdoctoral School of Molecular and Nanotechnologies, Chemical Engineering and Material Science Doctoral School, University of Pannonia, Egyetem u.10, H-8200, Veszprém, Hungary
| | - Borbala Leticia Gemes
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Herman Ottó u. 15, H-1022, Budapest, Hungary
| | - Eszter Takacs
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Herman Ottó u. 15, H-1022, Budapest, Hungary
| | - Andras Szekacs
- Agro-Environmental Research Institute, National Agricultural Research and Innovation Centre, Herman Ottó u. 15, H-1022, Budapest, Hungary.
| | - Robert Horvath
- Nanobiosensorics Momentum Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege M. út 29-33, H-1120, Budapest, Hungary.
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15
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Gigante P, Berni M, Bussolati S, Grasselli F, Grolli S, Ramoni R, Basini G. Glyphosate affects swine ovarian and adipose stromal cell functions. Anim Reprod Sci 2018; 195:185-196. [PMID: 29843941 DOI: 10.1016/j.anireprosci.2018.05.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 12/20/2022]
Abstract
Although Glyphosate (GLY) is a widely used pesticide, its effects on ovarian function and stem cell differentiation are still largely unknown. Therefore, as a contribution on this subject, the present work reports an investigation of the in vitro effects of GLY on swine granulosa cells and adipose stromal cells (ASCs). The effect of GLY at different doses (0.2, 4 and 16 μg/mL) was evaluated on granulosa cells growth (BrDU incorporation and ATP production), steroidogenesis (17-β estradiol and progesterone secretion) and redox status (superoxide and nitric oxide production and non-enzymatic scavenging activity). GLY has been shown to inhibit cell growth, 17-β estradiol and non-enzymatic scavenging activity and to increase progesterone and nitric oxide secretion (P < 0.05). In addition, GLY significantly decreased the viability of ASCs (P < 0.001), and inhibited their adipogenic differentiation. These data indicate that GLY alters the main features of granulosa cells and ASCS thus suggesting that GLY could affect both reproductive function and adipose tissues homeostasis.
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Affiliation(s)
- Paolo Gigante
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Melissa Berni
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Simona Bussolati
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Francesca Grasselli
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Stefano Grolli
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Roberto Ramoni
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy
| | - Giuseppina Basini
- Dipartimento di Scienze Medico-Veterinarie, Università di Parma, Via del Taglio 10, 43126, Parma, Italy.
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Redox imbalance caused by pesticides: a review of OPENTOX-related research. Arh Hig Rada Toksikol 2018; 69:126-134. [PMID: 29990294 DOI: 10.2478/aiht-2018-69-3105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/01/2018] [Indexed: 11/20/2022] Open
Abstract
Pesticides are a highly diverse group of compounds and the most important chemical stressors in the environment. Mechanisms that could explain pesticide toxicity are constantly being studied and their interactions at the cellular level are often observed in well-controlled in vitro studies. Several pesticide groups have been found to impair the redox balance in the cell, but the mechanisms leading to oxidative stress for certain pesticides are only partly understood. As our scientific project "Organic pollutants in environment - markers and biomarkers of toxicity (OPENTOX)" is dedicated to studying toxic effects of selected insecticides and herbicides, this review is focused on reporting the knowledge regarding oxidative stress-related phenomena at the cellular level. We wanted to single out the most important facts relevant to the evaluation of our own findings from studies conducted on in vitro cell models.
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17
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Bus JS. IARC use of oxidative stress as key mode of action characteristic for facilitating cancer classification: Glyphosate case example illustrating a lack of robustness in interpretative implementation. Regul Toxicol Pharmacol 2017; 86:157-166. [PMID: 28274811 DOI: 10.1016/j.yrtph.2017.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 02/28/2017] [Accepted: 03/02/2017] [Indexed: 11/27/2022]
Abstract
The International Agency for Research on Cancer (IARC) has formulated 10 key characteristics of human carcinogens to incorporate mechanistic data into cancer hazard classifications. The analysis used glyphosate as a case example to examine the robustness of IARC's determination of oxidative stress as "strong" evidence supporting a plausible cancer mechanism in humans. The IARC analysis primarily relied on 14 human/mammalian studies; 19 non-mammalian studies were uninformative of human cancer given the broad spectrum of test species and extensive use of formulations and aquatic testing. The mammalian studies had substantial experimental limitations for informing cancer mechanism including use of: single doses and time points; cytotoxic/toxic test doses; tissues not identified as potential cancer targets; glyphosate formulations or mixtures; technically limited oxidative stress biomarkers. The doses were many orders of magnitude higher than human exposures determined in human biomonitoring studies. The glyphosate case example reveals that the IARC evaluation fell substantially short of "strong" supporting evidence of oxidative stress as a plausible human cancer mechanism, and suggests that other IARC monographs relying on the 10 key characteristics approach should be similarly examined for a lack of robust data integration fundamental to reasonable mode of action evaluations.
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Affiliation(s)
- James S Bus
- Exponent, Inc., 1800 Diagonal Road, Suite 500, Alexandria, VA 22314, United States.
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18
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Rissoli RZ, Abdalla FC, Costa MJ, Rantin FT, McKenzie DJ, Kalinin AL. Effects of glyphosate and the glyphosate based herbicides Roundup Original(®) and Roundup Transorb(®) on respiratory morphophysiology of bullfrog tadpoles. CHEMOSPHERE 2016; 156:37-44. [PMID: 27160633 DOI: 10.1016/j.chemosphere.2016.04.083] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/20/2016] [Accepted: 04/21/2016] [Indexed: 06/05/2023]
Abstract
Glyphosate-based herbicides are widely used in agriculture and are commonly found in water bodies. Roundup Original(®) (RO) contains an isopropylamine glyphosate (GLY) salt containing the surfactant POEA, while Roundup Transorb R(®) (RTR) contains a potassium salt of GLY with unknown surfactants. Both contain different compositions of so-called "inert" ingredients, more toxic than glyphosate. Amphibian tadpoles often experience variations in O2 availability in their aquatic habitats; an ability to tolerate hypoxia can condition their survival and fitness. We evaluated the impacts of sublethal concentrations of GLY (1 mg L(-1)), RO (1 mg L(-1) GLY a.e) and RTR (1 mg L(-1) GLY a.e) on metabolic rate (V·O2 - mLO2 Kg1 h(-1)) of bullfrog tadpoles during normoxia and graded hypoxia, and related this to morphology of their skin, their major site of gas exchange. In control (CT) V·O2 remained unaltered from normoxia until 40 mmHg, indicating a critical O2 tension between 40 and 20 mmHg. GLY significantly reduced V·O2, possibly due to epidermal hypertrophy, which increased O2 diffusion distance to O2 uptake. In contrast, RTR increased V·O2 during hypoxia, indicating an influence of "inert" compounds and surfactants. V·O2 of RO did not differ from CT, suggesting that any increase in V·O2 caused by exposure was antagonized by epidermal hypertrophy. Indeed, all herbicides caused marked alterations in skin morphology, with cell and epithelium wall presenting hyperplasia or hypertrophy and chromatid rupture. In summary, GLY, RO and RTR exert different effects in bullfrog tadpoles, in particular the surfactants and inert compounds appear to influence oxygen uptake.
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Affiliation(s)
- Rafael Zanelli Rissoli
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, SP, Brazil
| | | | - Monica Jones Costa
- Department of Biology, Federal University of São Carlos, Sorocaba, SP, Brazil
| | - Francisco Tadeu Rantin
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, SP, Brazil
| | - David John McKenzie
- UMR9190 Centre for Marine Biodiversity Exploitation and Conservation, University of Montpellier, France
| | - Ana Lucia Kalinin
- Department of Physiological Sciences, Federal University of São Carlos, São Carlos, SP, Brazil.
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19
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20
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Zhornik EV, Baranova LA, Drozd ES, Sudas MS, Chau NH, Buu NQ, Dung TTN, Chizhik SA, Volotovski ID. Silver nanoparticles induce lipid peroxidation and morphological changes in human lymphocytes surface. Biophysics (Nagoya-shi) 2014. [DOI: 10.1134/s0006350914030282] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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21
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Ewald M, Tetard L, Elie-Caille C, Nicod L, Passian A, Bourillot E, Lesniewska E. From surface to intracellular non-invasive nanoscale study of living cells impairments. NANOTECHNOLOGY 2014; 25:295101. [PMID: 24981178 DOI: 10.1088/0957-4484/25/29/295101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Among the enduring challenges in nanoscience, subsurface characterization of living cells holds major stakes. Developments in nanometrology for soft matter thriving on the sensitivity and high resolution benefits of atomic force microscopy have enabled detection of subsurface structures at the nanoscale. However, measurements in liquid environments remain complex, in particular in the subsurface domain. Here we introduce liquid-mode synthesizing atomic force microscopy (l-MSAFM) to study both the inner structures and the chemically induced intracellular impairments of living cells. Specifically, we visualize the intracellular stress effects of glyphosate on living keratinocytes skin cells. This new approach, l-MSAFM, for nanoscale imaging of living cell in their physiological environment or in presence of a chemical stress agent could resolve the loss of inner structures induced by glyphosate, the main component of a well-known pesticide (RoundUp™). This firsthand ability to monitor the cell's inner response to external stimuli non-destructively and in liquid, has the potential to unveil critical nanoscale mechanisms of life science.
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Affiliation(s)
- M Ewald
- ICB UMR CNRS 6303, University of Bourgogne, Dijon, France. LRN EA4682, University of Reims Champagne-Ardenne, Reims Cedex 2, France
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22
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de Liz Oliveira Cavalli VL, Cattani D, Heinz Rieg CE, Pierozan P, Zanatta L, Benedetti Parisotto E, Wilhelm Filho D, Mena Barreto Silva FR, Pessoa-Pureur R, Zamoner A. Roundup disrupts male reproductive functions by triggering calcium-mediated cell death in rat testis and Sertoli cells. Free Radic Biol Med 2013; 65:335-346. [PMID: 23820267 DOI: 10.1016/j.freeradbiomed.2013.06.043] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 04/02/2013] [Accepted: 06/24/2013] [Indexed: 02/03/2023]
Abstract
Glyphosate is the primary active constituent of the commercial pesticide Roundup. The present results show that acute Roundup exposure at low doses (36 ppm, 0.036 g/L) for 30 min induces oxidative stress and activates multiple stress-response pathways leading to Sertoli cell death in prepubertal rat testis. The pesticide increased intracellular Ca(2+) concentration by opening L-type voltage-dependent Ca(2+) channels as well as endoplasmic reticulum IP3 and ryanodine receptors, leading to Ca(2+) overload within the cells, which set off oxidative stress and necrotic cell death. Similarly, 30 min incubation of testis with glyphosate alone (36 ppm) also increased (45)Ca(2+) uptake. These events were prevented by the antioxidants Trolox and ascorbic acid. Activated protein kinase C, phosphatidylinositol 3-kinase, and the mitogen-activated protein kinases such as ERK1/2 and p38MAPK play a role in eliciting Ca(2+) influx and cell death. Roundup decreased the levels of reduced glutathione (GSH) and increased the amounts of thiobarbituric acid-reactive species (TBARS) and protein carbonyls. Also, exposure to glyphosate-Roundup stimulated the activity of glutathione peroxidase, glutathione reductase, glutathione S-transferase, γ-glutamyltransferase, catalase, superoxide dismutase, and glucose-6-phosphate dehydrogenase, supporting downregulated GSH levels. Glyphosate has been described as an endocrine disruptor affecting the male reproductive system; however, the molecular basis of its toxicity remains to be clarified. We propose that Roundup toxicity, implicated in Ca(2+) overload, cell signaling misregulation, stress response of the endoplasmic reticulum, and/or depleted antioxidant defenses, could contribute to Sertoli cell disruption in spermatogenesis that could have an impact on male fertility.
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Affiliation(s)
- Vera Lúcia de Liz Oliveira Cavalli
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Daiane Cattani
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Carla Elise Heinz Rieg
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Paula Pierozan
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Leila Zanatta
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Eduardo Benedetti Parisotto
- Departamento de Ecologia e Zoologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Danilo Wilhelm Filho
- Departamento de Ecologia e Zoologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Fátima Regina Mena Barreto Silva
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Regina Pessoa-Pureur
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ariane Zamoner
- Departamento de Bioquímica and Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil.
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Emptying of Intracellular Calcium Pool and Oxidative Stress Imbalance Are Associated with the Glyphosate-Induced Proliferation in Human Skin Keratinocytes HaCaT Cells. ISRN DERMATOLOGY 2013; 2013:825180. [PMID: 24073338 PMCID: PMC3773425 DOI: 10.1155/2013/825180] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 07/17/2013] [Indexed: 02/02/2023]
Abstract
We demonstrated that glyphosate possesses tumor promoting potential in mouse skin carcinogenesis and SOD 1, calcyclin (S100A6), and calgranulin B (S100A9) have been associated with this potential, although the mechanism is unclear. We aimed to clarify whether imbalance in between [Ca2+]i levels and oxidative stress is associated with glyphosate-induced proliferation in human keratinocytes HaCaT cells. The [Ca2+]i levels, ROS generation, and expressions of G1/S cyclins, IP3R1, S100A6, S100A9, and SOD 1, and apoptosis-related proteins were investigated upon glyphosate exposure in HaCaT cells. Glyphosate (0.1 mM) significantly induced proliferation, decreases [Ca2+]i, and increases ROS generation in HaCaT cells, whereas antioxidant N-acetyl-L-cysteine (NAC) pretreatment reverts these effects which directly indicated that glyphosate induced cell proliferation by lowering [Ca2+]i levels via ROS generation. Glyphosate also enhanced the expression of G1/S cyclins associated with a sharp decrease in G0/G1 and a corresponding increase in S-phases. Additionally, glyphosate also triggers S100A6/S100A9 expression and decreases IP3R1 and SOD 1 expressions in HaCaT cells. Notably, Ca2+ suppression also prevented apoptotic related events including Bax/Bcl-2 ratio and caspases activation. This study highlights that glyphosate promotes proliferation in HaCaT cells probably by disrupting the balance in between [Ca2+]i levels and oxidative stress which in turn facilitated the downregulation of mitochondrial apoptotic signaling pathways.
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Heu C, Elie-Caille C, Mougey V, Launay S, Nicod L. A step further toward glyphosate-induced epidermal cell death: involvement of mitochondrial and oxidative mechanisms. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2012; 34:144-153. [PMID: 22522424 DOI: 10.1016/j.etap.2012.02.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 02/07/2012] [Accepted: 02/27/2012] [Indexed: 05/05/2023]
Abstract
A deregulation of programmed cell death mechanisms in human epidermis leads to skin pathologies. We previously showed that glyphosate, an extensively used herbicide, provoked cytotoxic effects on cultured human keratinocytes, affecting their antioxidant capacities and impairing morphological and functional cell characteristics. The aim of the present study, carried out on the human epidermal cell line HaCaT, was to examine the part of apoptosis plays in the cytotoxic effects of glyphosate and the intracellular mechanisms involved in the apoptotic events. We have conducted different incubation periods to reveal the specific events in glyphosate-induced cell death. We observed an increase in the number of early apoptotic cells at a low cytotoxicity level (15%), and then, a decrease, in favor of late apoptotic and necrotic cell rates for more severe cytotoxicity conditions. At the same time, we showed that the glyphosate-induced mitochondrial membrane potential disruption could be a cause of apoptosis in keratinocyte cultures.
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Affiliation(s)
- Celine Heu
- University of Franche-Comte, Clinical & Innovation Proteomic Platform (CLIPP), Institut FEMTO-ST, UMR 6174 CNRS, 25030 Besancon cedex, France; University of Franche-Comte, Laboratoire de Biologie Cellulaire, EA4268, SFR FED 4234, UFR Sciences Medicales & Pharmaceutiques, 19 rue Ambroise Paré, 25030 Besancon cedex, France.
| | - Celine Elie-Caille
- University of Franche-Comte, Clinical & Innovation Proteomic Platform (CLIPP), Institut FEMTO-ST, UMR 6174 CNRS, 25030 Besancon cedex, France
| | - Virginie Mougey
- University of Franche-Comte, DImaCell, UMR1098, SFR FED 4234, Batiment SFR-IBCT, 240 route de Dole, 25000 Besancon, France
| | - Sophie Launay
- University of Franche-Comte, DImaCell, EA3181, SFR FED 4234, Batiment SFR-IBCT, 240 route de Dole, 25000 Besancon, France
| | - Laurence Nicod
- University of Franche-Comte, Laboratoire de Biologie Cellulaire, EA4268, SFR FED 4234, UFR Sciences Medicales & Pharmaceutiques, 19 rue Ambroise Paré, 25030 Besancon cedex, France
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Cui H, Li Q, Qian Y, Zhang Q, Zhai J. Preparation and adsorption performance of MnO2/PAC composite towards aqueous glyphosate. ENVIRONMENTAL TECHNOLOGY 2012; 33:2049-56. [PMID: 23240199 DOI: 10.1080/09593330.2012.660641] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Glyphosate (N-phosphonomethylglycine (PMG)) is the organophosphate herbicide most widely used in the world, and industrial production of PMG generates large quantities of wastewater. A manganese dioxide-coated powdered activated carbon (MnO2/PAC) composite was synthesized and investigated for the adsorption of PMG from wastewater. The results of scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectrometry (EDAX) revealed that MnO2 was formed on the surface of the carbon during the modification process. Batch adsorption results showed that the optimal pH for glyphosate adsorption on MnO2/PAC was 3.0. In the range 0.01(-1) molL(-1), glyphosate removal by MnO2/PAC decreased with an increase in ionic strength. Among the coexistent anions, only phosphate showed significant inhibition of PMG removal due to competitive complexation. Batch studies revealed that MnO2/PAC could reach a maximum PMG adsorption capacity of 283 mg g(-1). The Langmuir equilibrium model was found to be suitable for describing PMG sorption, and kinetic studies revealed that adsorption followed second-order rate kinetics. It was also proved that the adsorbed PMG could be effectively desorbed from MnO2/PAC in 1.0 molL(-1) NaOH. All of these results implied that the MnO2/PAC composite may be used as an effective adsorbent for recycling PMG from wastewater.
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Affiliation(s)
- Hao Cui
- School of the Environment, Nanjing University, PR China
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Heu C, Berquand A, Elie-Caille C, Nicod L. Glyphosate-induced stiffening of HaCaT keratinocytes, a Peak Force Tapping study on living cells. J Struct Biol 2012; 178:1-7. [PMID: 22369932 DOI: 10.1016/j.jsb.2012.02.007] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 01/27/2012] [Accepted: 02/08/2012] [Indexed: 12/29/2022]
Abstract
The skin is the first physiological barrier, with a complex constitution, that provides defensive functions against multiple physical and chemical aggressions. Glyphosate is an extensively used herbicide that has been shown to increase the risk of cancer. Moreover there is increasing evidence suggesting that the mechanical phenotype plays an important role in malignant transformation. Atomic force microscopy (AFM) has emerged within the last decade as a powerful tool for providing a nanometer-scale resolution imaging of biological samples. Peak Force Tapping (PFT) is a newly released AFM-based investigation technique allowing extraction of chemical and mechanical properties from a wide range of samples at a relatively high speed and a high resolution. The present work uses the PFT technology to investigate HaCaT keratinocytes, a human epidermal cell line, and offers an original approach to study chemically-induced changes in the cellular mechanical properties under near-physiological conditions. These experiments indicate glyphosate induces cell membrane stiffening, and the appearance of cytoskeleton structures at a subcellular level, for low cytotoxic concentrations whereas cells exposed to IC50 (inhibitory concentration 50%) treatment exhibit control-like mechanical behavior despite obvious membrane damages. Quercetin, a well-known antioxidant, reverses the glyphosate-induced mechanical phenotype.
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Affiliation(s)
- Celine Heu
- University of Franche-Comte, Laboratoire de Biologie Cellulaire, EA4268, FED4234, UFR des Sciences Medicales & Pharmaceutiques, 19 rue Ambroise Pare, 25030 Besancon cedex, France.
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LASALVIA M, PERNA G, MEZZENGA E, MIGLIORINI E, LAZZARINO M, L’ABBATE N, CAPOZZI V. Atomic force microscopy investigation of morphological changes in living keratinocytes treated with HgCl2 at not cytotoxic doses. J Microsc 2011; 243:40-6. [DOI: 10.1111/j.1365-2818.2010.03479.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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