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Birolli WG, Lanças FM, dos Santos Neto ÁJ, Silveira HCS. Determination of pesticide residues in urine by chromatography-mass spectrometry: methods and applications. Front Public Health 2024; 12:1336014. [PMID: 38932775 PMCID: PMC11199415 DOI: 10.3389/fpubh.2024.1336014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 04/22/2024] [Indexed: 06/28/2024] Open
Abstract
Introduction Pollution has emerged as a significant threat to humanity, necessitating a thorough evaluation of its impacts. As a result, various methods for human biomonitoring have been proposed as vital tools for assessing, managing, and mitigating exposure risks. Among these methods, urine stands out as the most commonly analyzed biological sample and the primary matrix for biomonitoring studies. Objectives This review concentrates on exploring the literature concerning residual pesticide determination in urine, utilizing liquid and gas chromatography coupled with mass spectrometry, and its practical applications. Method The examination focused on methods developed since 2010. Additionally, applications reported between 2015 and 2022 were thoroughly reviewed, utilizing Web of Science as a primary resource. Synthesis Recent advancements in chromatography-mass spectrometry technology have significantly enhanced the development of multi-residue methods. These determinations are now capable of simultaneously detecting numerous pesticide residues from various chemical and use classes. Furthermore, these methods encompass analytes from a variety of environmental contaminants, offering a comprehensive approach to biomonitoring. These methodologies have been employed across diverse perspectives, including toxicological studies, assessing pesticide exposure in the general population, occupational exposure among farmers, pest control workers, horticulturists, and florists, as well as investigating consequences during pregnancy and childhood, neurodevelopmental impacts, and reproductive disorders. Future directions Such strategies were essential in examining the health risks associated with exposure to complex mixtures, including pesticides and other relevant compounds, thereby painting a broader and more accurate picture of human exposure. Moreover, the implementation of integrated strategies, involving international research initiatives and biomonitoring programs, is crucial to optimize resource utilization, enhancing efficiency in health risk assessment.
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Affiliation(s)
- Willian Garcia Birolli
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
- Chromatography Group, São Carlos Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Fernando Mauro Lanças
- Chromatography Group, São Carlos Institute of Chemistry, University of São Paulo, São Paulo, Brazil
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Chaiklieng S, Uengchuen K, Gissawong N, Srijaranai S, Autrup H. Biological Monitoring of Glyphosate Exposure among Knapsack Sprayers in Khon Kaen, Thailand. TOXICS 2024; 12:337. [PMID: 38787116 PMCID: PMC11125926 DOI: 10.3390/toxics12050337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/19/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
Sprayers' exposure to glyphosate was analyzed through detection of its biomarker in spot urine biological monitoring, and the health risk was assessed using the biomatrix model. Urine samples were collected from 15 sprayers after spraying, and the glyphosate concentration was determined by using the DLLME-HPLC method with a UV detector. The calibration curve for glyphosate was linear in the range of 0.4-100 µg/L, while the limits of detection and quantification were 0.1 µg/L and 0.4 µg/L, respectively. The human health risk was estimated using the hazard quotient (HQ) and the biomatrix of risk assessment. The internal dose ranged from 0.0001 to 0.0021 mg/kg b.w./day. The non-cancer HQ showed no potential health risk concerns (HQ < 1). The biomatrix of health risk assessment, based on urinary glyphosate concentration, exhibited a strong correlation with the health risk matrix model. This correlation was determined by considering the likelihood of exposure, calculated from the quantity of glyphosate used and the usage of personal protective equipment (r = 0.854, p < 0.001). Although low risk was observed in sprayers, proper PPE use and the application of more knowledge are required. The simplified health risk assessment can be used for easy self-assessment of risk in preventive action regarding health risk awareness among sprayers.
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Affiliation(s)
- Sunisa Chaiklieng
- Department of Occupational Safety and Environmental Health, Faculty of Public Health, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kodchakorn Uengchuen
- Program in M.Sc. Occupational Health and Safety, Faculty of Public Health, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Netsirin Gissawong
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Herman Autrup
- Institute of Public Health, Aarhus University, 8000 Aarhus, Denmark
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3
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Chang VC, Ospina M, Xie S, Andreotti G, Parks CG, Liu D, Madrigal JM, Ward MH, Rothman N, Silverman DT, Sandler DP, Friesen MC, Beane Freeman LE, Calafat AM, Hofmann JN. Urinary biomonitoring of glyphosate exposure among male farmers and nonfarmers in the Biomarkers of Exposure and Effect in Agriculture (BEEA) study. ENVIRONMENT INTERNATIONAL 2024; 187:108644. [PMID: 38636272 DOI: 10.1016/j.envint.2024.108644] [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: 02/01/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024]
Abstract
Glyphosate is the most widely applied herbicide worldwide. Glyphosate biomonitoring data are limited for agricultural settings. We measured urinary glyphosate concentrations and assessed exposure determinants in the Biomarkers of Exposure and Effect in Agriculture (BEEA) study. We selected four groups of BEEA participants based on self-reported pesticide exposure: recently exposed farmers with occupational glyphosate use in the last 7 days (n = 98), farmers with high lifetime glyphosate use (>80th percentile) but no use in the last 7 days (n = 70), farming controls with minimal lifetime use (n = 100), and nonfarming controls with no occupational pesticide exposures and no recent home/garden glyphosate use (n = 100). Glyphosate was quantified in first morning void urine using ion chromatography isotope-dilution tandem mass spectrometry. We estimated associations between urinary glyphosate concentrations and potential determinants using multivariable linear regression. Glyphosate was detected (≥0.2 µg/L) in urine of most farmers with recent (91 %) and high lifetime (93 %) use, as well as farming (88 %) and nonfarming (81 %) controls; geometric mean concentrations were 0.89, 0.59, 0.46, and 0.39 µg/L (0.79, 0.51, 0.42, and 0.37 µg/g creatinine), respectively. Compared with both control groups, urinary glyphosate concentrations were significantly elevated among recently exposed farmers (P < 0.0001), particularly those who used glyphosate in the previous day [vs. nonfarming controls; geometric mean ratio (GMR) = 5.46; 95 % confidence interval (CI): 3.75, 7.93]. Concentrations among high lifetime exposed farmers were also elevated (P < 0.01 vs. nonfarming controls). Among recently exposed farmers, glyphosate concentrations were higher among those not wearing gloves when applying glyphosate (GMR = 1.91; 95 % CI: 1.17, 3.11), not wearing long-sleeved shirts when mixing/loading glyphosate (GMR = 2.00; 95 % CI: 1.04, 3.86), applying glyphosate exclusively using broadcast/boom sprayers (vs. hand sprayer only; GMR = 1.70; 95 % CI: 1.00, 2.92), and applying glyphosate to crops (vs. non-crop; GMR = 1.72; 95 % CI: 1.04, 2.84). Both farmers and nonfarmers are exposed to glyphosate, with recency of occupational glyphosate use being the strongest determinant of urinary glyphosate concentrations. Continued biomonitoring of glyphosate in various settings is warranted.
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Affiliation(s)
- Vicky C Chang
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Maria Ospina
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Shuai Xie
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Gabriella Andreotti
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Christine G Parks
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC, USA
| | - Danping Liu
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jessica M Madrigal
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mary H Ward
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nathaniel Rothman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Debra T Silverman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC, USA
| | - Melissa C Friesen
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Laura E Beane Freeman
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jonathan N Hofmann
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Wei X, Pan Y, Zhang Z, Cui J, Yin R, Li H, Qin J, Li AJ, Qiu R. Biomonitoring of glyphosate and aminomethylphosphonic acid: Current insights and future perspectives. JOURNAL OF HAZARDOUS MATERIALS 2024; 463:132814. [PMID: 37890382 DOI: 10.1016/j.jhazmat.2023.132814] [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: 07/03/2023] [Revised: 09/28/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023]
Abstract
Glyphosate is one of the most widely used herbicides globally, raising concerns about its potential impact on human health. Biomonitoring studies play a crucial role in assessing human exposure to glyphosate and providing valuable insights into its distribution and metabolism in the body. This review aims to summarize the current trends and future perspectives in biomonitoring of glyphosate and its major degradation product of aminomethylphosphonic acid (AMPA). A comprehensive literature search was conducted, focusing on studies published between January 2000 and December 2022. The findings demonstrated that glyphosate and AMPA have been reported in different human specimens with urine as the dominance. Sample pretreatment techniques of solid-phase and liquid-liquid extractions coupled with liquid/gas chromatography-tandem mass spectrometry have achieved matrix elimination and accurate analysis. We also examined and compared the exposure characteristics of these compounds among different regions and various populations, with significantly higher levels of glyphosate and AMPA observed in Asian populations and among occupational groups. The median urinary concentration of glyphosate in children was 0.54 ng/mL, which was relatively higher than those in women (0.28 ng/mL) and adults (0.12 ng/mL). It is worth noting that children may exhibit increased susceptibility to glyphosate exposure or have different exposure patterns compared to women and adults. A number of important perspectives were proposed in order to further facilitate the understanding of health effects of glyphosate and AMPA, which include, but are not limited to, method standardization, combined exposure assessment, attention for vulnerable populations, long-term exposure effects and risk communication and public awareness.
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Affiliation(s)
- Xin Wei
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yanan Pan
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Ziqi Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jingyi Cui
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Renli Yin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Junhao Qin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Adela Jing Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Rongliang Qiu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
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Mueller W, Jones K, Fuhrimann S, Ahmad ZNBS, Sams C, Harding AH, Povey A, Atuhaire A, Basinas I, van Tongeren M, Kromhout H, Galea KS. Factors influencing occupational exposure to pyrethroids and glyphosate: An analysis of urinary biomarkers in Malaysia, Uganda and the United Kingdom. ENVIRONMENTAL RESEARCH 2024; 242:117651. [PMID: 37996007 DOI: 10.1016/j.envres.2023.117651] [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: 05/31/2023] [Revised: 10/17/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Long-term exposure to pesticides is often assessed using semi-quantitative models. To improve these models, a better understanding of how occupational factors determine exposure (e.g., as estimated by biomonitoring) would be valuable. METHODS Urine samples were collected from pesticide applicators in Malaysia, Uganda, and the UK during mixing/application days (and also during non-application days in Uganda). Samples were collected pre- and post-activity on the same day and analysed for biomarkers of active ingredients (AIs), including synthetic pyrethroids (via the metabolite 3-phenoxybenzoic acid [3-PBA]) and glyphosate, as well as creatinine. We performed multilevel Tobit regression models for each study to assess the relationship between exposure modifying factors (e.g., mixing/application of AI, duration of activity, personal protective equipment [PPE]) and urinary biomarkers of exposure. RESULTS From the Malaysia, Uganda, and UK studies, 81, 84, and 106 study participants provided 162, 384 and 212 urine samples, respectively. Pyrethroid use on the sampling day was most common in Malaysia (n = 38; 47%), and glyphosate use was most prevalent in the UK (n = 93; 88%). Median pre- and post-activity 3-PBA concentrations were similar, with higher median concentrations post-compared to pre-activity for glyphosate samples in the UK (1.7 to 0.5 μg/L) and Uganda (7.6 to 0.8 μg/L) (glyphosate was not used in the Malaysia study). There was evidence from individual studies that higher urinary biomarker concentrations were associated with mixing/application of the AI on the day of urine sampling, longer duration of mixing/application, lower PPE protection, and less education/literacy, but no factor was consistently associated with exposure across biomarkers in the three studies. CONCLUSIONS Our results suggest a need for AI-specific interpretation of exposure modifying factors as the relevance of exposure routes, levels of detection, and farming systems/practices may be very context and AI-specific.
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Affiliation(s)
- William Mueller
- Institute of Occupational Medicine (IOM), Edinburgh, United Kingdom.
| | - Kate Jones
- Health and Safety Executive (HSE), Buxton, United Kingdom
| | - Samuel Fuhrimann
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, Netherlands
| | - Zulkhairul Naim Bin Sidek Ahmad
- Centre for Occupational and Environmental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom; Department Medical Education and Department Public Health Medicine, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, 88450 Kota Kinabalu, Sabah, Malaysia
| | - Craig Sams
- Health and Safety Executive (HSE), Buxton, United Kingdom
| | | | - Andrew Povey
- Centre for Occupational and Environmental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Aggrey Atuhaire
- Uganda National Association of Community and Occupational Health (UNACOH), Kampala, Uganda
| | - Ioannis Basinas
- Centre for Occupational and Environmental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Martie van Tongeren
- Centre for Occupational and Environmental Health, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Hans Kromhout
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, Netherlands
| | - Karen S Galea
- Institute of Occupational Medicine (IOM), Edinburgh, United Kingdom
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Reale E, Zare Jeddi M, Paini A, Connolly A, Duca R, Cubadda F, Benfenati E, Bessems J, S Galea K, Dirven H, Santonen T, M Koch H, Jones K, Sams C, Viegas S, Kyriaki M, Campisi L, David A, Antignac JP, B Hopf N. Human biomonitoring and toxicokinetics as key building blocks for next generation risk assessment. ENVIRONMENT INTERNATIONAL 2024; 184:108474. [PMID: 38350256 DOI: 10.1016/j.envint.2024.108474] [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: 08/07/2023] [Revised: 12/15/2023] [Accepted: 02/01/2024] [Indexed: 02/15/2024]
Abstract
Human health risk assessment is historically built upon animal testing, often following Organisation for Economic Co-operation and Development (OECD) test guidelines and exposure assessments. Using combinations of human relevant in vitro models, chemical analysis and computational (in silico) approaches bring advantages compared to animal studies. These include a greater focus on the human species and on molecular mechanisms and kinetics, identification of Adverse Outcome Pathways and downstream Key Events as well as the possibility of addressing susceptible populations and additional endpoints. Much of the advancement and progress made in the Next Generation Risk Assessment (NGRA) have been primarily focused on new approach methodologies (NAMs) and physiologically based kinetic (PBK) modelling without incorporating human biomonitoring (HBM). The integration of toxicokinetics (TK) and PBK modelling is an essential component of NGRA. PBK models are essential for describing in quantitative terms the TK processes with a focus on the effective dose at the expected target site. Furthermore, the need for PBK models is amplified by the increasing scientific and regulatory interest in aggregate and cumulative exposure as well as interactions of chemicals in mixtures. Since incorporating HBM data strengthens approaches and reduces uncertainties in risk assessment, here we elaborate on the integrated use of TK, PBK modelling and HBM in chemical risk assessment highlighting opportunities as well as challenges and limitations. Examples are provided where HBM and TK/PBK modelling can be used in both exposure assessment and hazard characterization shifting from external exposure and animal dose/response assays to animal-free, internal exposure-based NGRA.
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Affiliation(s)
- Elena Reale
- Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Switzerland
| | - Maryam Zare Jeddi
- National Institute for Public Health and the Environment (RIVM), the Netherlands
| | | | - Alison Connolly
- UCD Centre for Safety & Health at Work, School of Public Health, Physiotherapy, and Sports Science, University College Dublin, D04 V1W8, Dublin, Ireland for Climate and Air Pollution Studies, Physics, School of Natural Science and the Ryan Institute, National University of Ireland, University Road, Galway H91 CF50, Ireland
| | - Radu Duca
- Unit Environmental Hygiene and Human Biological Monitoring, Department of Health Protection, Laboratoire national de santé (LNS), 1, Rue Louis Rech, 3555 Dudelange, Luxembourg; Environment and Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35, 3000 Leuven, Belgium
| | - Francesco Cubadda
- Istituto Superiore di Sanità - National Institute of Health, Viale Regina Elena 299, 00161 Rome, Italy
| | - Emilio Benfenati
- Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milano, Italy
| | - Jos Bessems
- VITO HEALTH, Flemish Institute for Technological Research, 2400 Mol, Belgium
| | - Karen S Galea
- Institute of Occupational Medicine (IOM), Research Avenue North, Riccarton, Edinburgh EH14 4AP, UK
| | - Hubert Dirven
- Department of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Tiina Santonen
- Finnish Institute of Occupational Health (FIOH), P.O. Box 40, FI-00032 Työterveyslaitos, Finland
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Kate Jones
- HSE - Health and Safety Executive, Harpur Hill, Buxton SK17 9JN, UK
| | - Craig Sams
- HSE - Health and Safety Executive, Harpur Hill, Buxton SK17 9JN, UK
| | - Susana Viegas
- NOVA National School of Public Health, Public Health Research Centre, Comprehensive Health Research Center, CHRC, NOVA University Lisbon, Lisbon, Portugal
| | - Machera Kyriaki
- Benaki Phytopathological Institute, 8, Stephanou Delta Street, 14561 Kifissia, Athens, Greece
| | - Luca Campisi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; Flashpoint srl, Via Norvegia 56, 56021 Cascina (PI), Italy
| | - Arthur David
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, F-35000 Rennes, France
| | | | - Nancy B Hopf
- Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Switzerland.
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7
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Pan S, Ye M, Yan P, Guo Y, Zhang D, He Q. Surface multi-walled carbon nanotube modified quaternary amine-functionalized polymers for purification and determination of glyphosate and its four metabolites in plasma samples. J Chromatogr A 2024; 1715:464581. [PMID: 38142508 DOI: 10.1016/j.chroma.2023.464581] [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: 09/30/2023] [Revised: 11/24/2023] [Accepted: 12/14/2023] [Indexed: 12/26/2023]
Abstract
The present study focused on the pretreatment and detection of GLY and its four metabolites AMPA, N-acetyl AMPA, N-methyl GLY and N-acetyl GLY in plasma samples. Multi-walled carbon nanotube-modified quaternary amine-functionalized polymers (QA-PDNV@MWCNTs) were synthesized in a controlled manner by self-assembly, and its morphology and composition were extensively characterized. The QA-PDNV@MWCNTs microspheres were then used as an SPE adsorbent for the preparation and rapid determination of GLY and its four metabolites in plasma samples combined with ultra-performance liquid chromatography-high resolution mass spectrometry (UPLCHRMS). The SPE conditions based on QA-PDNV@MWCNTs were optimized for GLY and its metabolites to obtain the best purification efficiency. The experimental results show that when the adsorbent contains 8% MWCNTs, it can balance the adsorption of target analytes and the purification performance of the adsorbent for impurities. In addition, this study compared the QA-PDNV@MWCNTs based SPE method with the commercial Waters Oasis MAX SPE cartridge and the results showed that the developed method in this study has better resistance to matrix interference. Under optimal conditions, the recoveries of GLY and its metabolites spiked in plasma were 82.6-99.4 % with relative standard deviations (RSDs) of 1.0-7.8 %. The limits of detection (LODs, S/N ≥ 3) and limits of quantification (LOQs, S/N ≥ 9) of the method were 0.05-0.33 μg/L and 0.15-1.00 μg/L, respectively. Finally, the developed QA-PDNV@MWCNTs based SPE-UPLCHRMS method was used to confirm GLY poisoning not only on the basis of the detection of the GLY prototype, but also on the basis of its four metabolites.
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Affiliation(s)
- Shengdong Pan
- Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China.
| | - Meijun Ye
- Hangzhou Tea Research Institute, China COOP, Hangzhou, Zhejiang 310016, China
| | - Peng Yan
- Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China
| | - Yanbo Guo
- Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China
| | - Dandan Zhang
- Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang 315010, China
| | - Qian He
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
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8
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Muñoz JP, Silva-Pavez E, Carrillo-Beltrán D, Calaf GM. Occurrence and exposure assessment of glyphosate in the environment and its impact on human beings. ENVIRONMENTAL RESEARCH 2023; 231:116201. [PMID: 37209985 DOI: 10.1016/j.envres.2023.116201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/22/2023]
Abstract
Glyphosate is a broad-spectrum and one of the most widely used herbicides in the world, which has led to its high environmental dissemination. In 2015, the International Agency for Research on Cancer stated that glyphosate was a probable human carcinogen. Since then, several studies have provided new data about the environmental exposure of glyphosate and its consequences on human health. Thus, the carcinogenic effects of glyphosate are still under debate. This work aimed to review glyphosate occurrence and exposure since 2015 up to date, considering studies associated with either environmental or occupational exposure and the epidemiological assessment of cancer risk in humans. These articles showed that herbicide residues were detectable in all spheres of the earth and studies on the population showed an increase in the concentration of glyphosate in biofluids, both in the general population and in the occupationally exposed population. However, the epidemiological studies under review provided limited evidence for the carcinogenicity of glyphosate, which was consistent with the International Agency for Research on Cancer classification as a probable carcinogen.
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Affiliation(s)
- Juan P Muñoz
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile.
| | - Eduardo Silva-Pavez
- Facultad de Odontología y Ciencias de La Rehabilitación, Universidad San Sebastián, Bellavista, Santiago, Chile
| | - Diego Carrillo-Beltrán
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, 5090000, Chile
| | - Gloria M Calaf
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile
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9
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Qi L, Dong YM, Chao H, Zhao P, Ma SL, Li G. Glyphosate based-herbicide disrupts energy metabolism and activates inflammatory response through oxidative stress in mice liver. CHEMOSPHERE 2023; 315:137751. [PMID: 36608876 DOI: 10.1016/j.chemosphere.2023.137751] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/22/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Glyphosate, the most widely used herbicide worldwide, has been reported to cause hepatotoxicity. However, these systematic mechanisms remain poorly understood. Here, we investigated the effects of glyphosate-based herbicides (GBH) on liver toxicity in mice exposed to 0, 50, 250, and 500 mg/kg/day GBH for 30 d. Pathological and ultrastructural changes, serum biochemical indicators, oxidative stress state, and transcriptome and key protein alterations were performed to describe the hepatic responses to GBH. GBH induced hepatocytes structural alterations, vacuolation, and inflammatory, mitochondrial swelling and vacuolization; damaged liver function and aggravated oxidative stress; blocked the respiratory chain, promoted gluconeogenesis, fatty acid synthesis and elongation, and activated complement and coagulation cascades system (CCCS) in the liver. Moreover, SOD, H2O2, and MDA were negatively correlated with the CxI and CxIV genes, but positively correlated with the genes in glucolipid metabolism and CCCS pathways; however, the opposite results were observed for CAT, GSH-Px, and T-AOC. Overall, this study revealed the systematic mechanism underlying hepatotoxicity caused by GBH, providing new insights into understanding the hepatotoxicity of organophosphorus pesticide.
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Affiliation(s)
- Lei Qi
- Department of Nutrition and Food Hygiene, Public Health College, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China
| | - Yan-Mei Dong
- Department of Nutrition and Food Hygiene, Public Health College, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China
| | - Hong Chao
- Department of Preventive Medicine, Public Health College, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China
| | - Peng Zhao
- Digital Curriculum Center, Academic Affairs Department, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China
| | - Shu-Li Ma
- Public Health Experimental Center, Public Health College, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China
| | - Gang Li
- Department of Preventive Medicine, Public Health College, Qiqihar Medical University, Qiqihar, 161006, Heilongjiang, China.
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10
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Andersen HR, Rambaud L, Riou M, Buekers J, Remy S, Berman T, Govarts E. Exposure Levels of Pyrethroids, Chlorpyrifos and Glyphosate in EU-An Overview of Human Biomonitoring Studies Published since 2000. TOXICS 2022; 10:789. [PMID: 36548622 PMCID: PMC9788618 DOI: 10.3390/toxics10120789] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Currently used pesticides are rapidly metabolised and excreted, primarily in urine, and urinary concentrations of pesticides/metabolites are therefore useful biomarkers for the integrated exposure from all sources. Pyrethroid insecticides, the organophosphate insecticide chlorpyrifos, and the herbicide glyphosate, were among the prioritised substances in the HBM4EU project and comparable human biomonitoring (HBM)-data were obtained from the HBM4EU Aligned Studies. The aim of this review was to supplement these data by presenting additional HBM studies of the priority pesticides across the HBM4EU partner countries published since 2000. We identified relevant studies (44 for pyrethroids, 23 for chlorpyrifos, 24 for glyphosate) by literature search using PubMed and Web of Science. Most studies were from the Western and Southern part of the EU and data were lacking from more than half of the HBM4EU-partner countries. Many studies were regional with relatively small sample size and few studies address residential and occupational exposure. Variation in urine sampling, analytical methods, and reporting of the HBM-data hampered the comparability of the results across studies. Despite these shortcomings, a widespread exposure to these substances in the general EU population with marked geographical differences was indicated. The findings emphasise the need for harmonisation of methods and reporting in future studies as initiated during HBM4EU.
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Affiliation(s)
- Helle Raun Andersen
- Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark (SDU), 5000 Odense, Denmark
| | - Loïc Rambaud
- Santé Publique France, Environmental and Occupational Health Division, 94410 Saint-Maurice, France
| | - Margaux Riou
- Santé Publique France, Environmental and Occupational Health Division, 94410 Saint-Maurice, France
| | - Jurgen Buekers
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Sylvie Remy
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
| | - Tamar Berman
- Israel Ministry of Health (MOH-IL), Jerusalem 9446724, Israel
| | - Eva Govarts
- VITO Health, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium
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11
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Novbatova G, Timme K, Severin A, Sayadi M, Keating AF. Pre-Conceptional Exposure to Glyphosate Affects the Maternal Hepatic and Ovarian Proteome. Toxicol Sci 2022; 190:204-214. [PMID: 36173347 PMCID: PMC9702999 DOI: 10.1093/toxsci/kfac098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Exposure to glyphosate (GLY), a commonly used herbicide, is supported by urinary detection and associated with shortened gestation in women. This study tested the hypothesis that chronic low-dose pre-conceptional GLY exposure would affect maternal ovarian function mid- and post-gestation. Mice (C57BL/6; n = 40) were exposed per os to saline vehicle control (CT; n = 20) or GLY (2 mg/kg; n = 20) daily for 10 weeks starting at 7 weeks of age. Post-exposure, females were impregnated and euthanized at gestation day 14 (GD14) or post-weaning (PW). Pregnancy success was reduced from 75% to 55% by GLY exposure. No treatment effect (p > .05) on body weight, maternal serum 17β-estradiol, or litter size was noted. Ovarian weight was unaffected or reduced (p < .05) by GLY in GD14 and PW dams, respectively. Exposure to GLY decreased (p < .05) PW ovarian secondary follicle number with no other follicle composition impacts. Protein abundance analysis by LC-MS/MS identified that GLY altered (p < .05) 26 ovarian and 41 hepatic proteins in GD14 dams and 39 hepatic proteins in PW dams. In GD14 dams, GLY increased ovarian protein abundance of SEC16A (p < .05; 29-fold) and hepatic RPS27L and GM4952 (p < .05; ∼4-fold). In both GD14 and PW dams, GLY exposure increased (p < .05) hepatic RPS4 and decreased (p < .05) ECHDC3. Pathway analysis using DAVID identified 10 GLY hepatic pathway targets with FDR ≤ 0.07 in GD14 dams.
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Affiliation(s)
- Gulnara Novbatova
- Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA
| | - Kelsey Timme
- Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA
| | - Andrew Severin
- Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA
| | - Maryam Sayadi
- Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, Iowa 50011, USA
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12
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Campbell G, Mannetje A, Keer S, Eaglesham G, Wang X, Lin CY, Hobson P, Toms LM, Douwes J, Thomas KV, Mueller JF, Kaserzon S. Characterization of glyphosate and AMPA concentrations in the urine of Australian and New Zealand populations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 847:157585. [PMID: 35882334 DOI: 10.1016/j.scitotenv.2022.157585] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Glyphosate is the most used herbicide globally, but our understanding of human exposure and how different uses affect exposure is not well understood. The aim of this study was to obtain the first data on glyphosate and its primary degradation product aminomethylphosphonic acid (AMPA) concentrations in pooled and individual urine from the Australia and New Zealand region using a sensitive direct injection method and compare results with studies from elsewhere. Pooled urine samples from the Australian general population (n = 125 pools representing >1875 individuals) and individual urine samples (n = 27) from occupationally exposed New Zealand farmers were analysed by LC-MS/MS. Glyphosate was detected above the LOD (0.20-1.25 μg/L) in 8 % of the Australian population pooled urine samples with most detections in the 45-60 years age group. Furthermore, glyphosate (0.85 to 153 μg/L) and AMPA (0.50 to 3.35 μg/L) were detected in 96 % and 33 % of farmers, respectively. The maximum glyphosate urine concentration was 1.7 times above the recommended acceptable daily intake (ADI), when assuming a urinary excretion rate of 1 %. The pooled sampling and analysis approach proved effective for rapid large-scale screening of populations and could be used to determine where targeted and more specific individual sampling may be required.
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Affiliation(s)
- Garth Campbell
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia.
| | - Andrea Mannetje
- Research Centre for Hauora and Health, Massey University, New Zealand
| | - Samuel Keer
- Research Centre for Hauora and Health, Massey University, New Zealand
| | - Geoff Eaglesham
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Xianyu Wang
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Chun-Yin Lin
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Peter Hobson
- Sullivan Nicolaides Pathology, Fortitude Valley, QLD 4006, Australia
| | - Leisa-Maree Toms
- School of Public Health and Social Work, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Jeroen Douwes
- Research Centre for Hauora and Health, Massey University, New Zealand
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Sarit Kaserzon
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
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13
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Connolly A, Koch HM, Bury D, Koslitz S, Kolossa-Gehring M, Conrad A, Murawski A, McGrath JA, Leahy M, Brüning T, Coggins MA. A Human Biomonitoring Study Assessing Glyphosate and Aminomethylphosphonic Acid (AMPA) Exposures among Farm and Non-Farm Families. TOXICS 2022; 10:690. [PMID: 36422898 PMCID: PMC9697524 DOI: 10.3390/toxics10110690] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/02/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Glyphosate-based pesticides are the highest-volume used herbicides worldwide. International concerns regarding the potential human adverse effects of glyphosate exposures have heightened since IARC classified glyphosate as probably carcinogenic to humans. Human biomonitoring (HBM) studies have identified ubiquitous exposure to glyphosate and its main breakdown product, aminomethylphosphonic acid (AMPA), from environmental exposures. The IMAGE research project aimed to investigate farm and non-farm families' exposure to glyphosate while aligning with the Human Biomonitoring for Europe (HBM4EU) initiative. The study recruited non-farm and farm families (who use glyphosate on their farms). Each family member provided a urine sample that was analysed using gas chromatography coupled with tandem mass spectrometry, with a limit of quantification of 0.05 µg/L for glyphosate and AMPA. In addition to general information on background exposures in farm and non-farm families, we investigated relationships in exposure between families and family members. We recruited 68 families, including 54 non-farm and 14 farm families (180 vs. 45 individuals). Some pesticide users (n = 14, all male farmers) had slightly elevated AMPA levels compared to other adult participants but, overall, we observed no significant differences between farm and non-farm families. The main metabolite, AMPA, was quantifiable in twice as many samples as glyphosate (61% vs. 32%), with a maximum concentration of 7.24 µg/L vs. 3.21 µg/L. Compared to previous studies, exposure levels were relatively low and far below current health-based guidance values (3% or less for glyphosate and AMPA). Study results suggest potential exposures from residential co-exposures or living with a pesticide user. This is the first study internationally to investigate glyphosate and AMPA across family members (farm and non-farm). We found comparably low glyphosate and AMPA exposures among these families. These results enhance our understanding of glyphosate exposures for different demographic groups and contribute to the scientific knowledge on exposures required for regulatory risk assessments and the re-evaluation of glyphosate in 2022 by the European Commission.
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Affiliation(s)
- Alison Connolly
- Centre for Climate and Air Pollution Studies, Physics, School of Natural Sciences and the Ryan Institute, University of Galway, University Road, H91 CF50 Galway, Ireland
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Holger M. Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Daniel Bury
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Stephan Koslitz
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | | | - André Conrad
- German Environment Agency (Umweltbundesamt), 06844 Dessau-Roßlau, Germany
| | - Aline Murawski
- German Environment Agency (Umweltbundesamt), 06844 Dessau-Roßlau, Germany
| | - James A. McGrath
- Centre for Climate and Air Pollution Studies, Physics, School of Natural Sciences and the Ryan Institute, University of Galway, University Road, H91 CF50 Galway, Ireland
| | - Michelle Leahy
- Centre for Climate and Air Pollution Studies, Physics, School of Natural Sciences and the Ryan Institute, University of Galway, University Road, H91 CF50 Galway, Ireland
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Marie A. Coggins
- Centre for Climate and Air Pollution Studies, Physics, School of Natural Sciences and the Ryan Institute, University of Galway, University Road, H91 CF50 Galway, Ireland
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14
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Kohsuwan K, Intayoung U, Khacha-Ananda S, Sapbamrer R, Koonrungsesomboon N, Techatoei S, Wunnapuk K. Urinary glyphosate kinetics after occupational exposure. Int J Hyg Environ Health 2022; 245:114021. [PMID: 35981405 DOI: 10.1016/j.ijheh.2022.114021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 07/12/2022] [Accepted: 08/03/2022] [Indexed: 11/26/2022]
Abstract
Glyphosate-surfactant herbicides are the most used and imported herbicide in Thailand. Urinary biomonitoring is a very important tool for evaluating glyphosate exposures and its adverse health effects. However, the data for glyphosate toxicokinetics, especially in Asian populations, is relatively limited. The majority of farmers in Thailand have long term experience with glyphosate use, but they generally follow poor safety practices, including insufficient or incorrect use of personal protective equipment during pesticide handling activities. Therefore, this study aimed to determine the toxicokinetics of glyphosate and its metabolite in urine among maize farmers from the northern region of Thailand. The effects of personal protective equipment usage, as well as farmer behavior during work, on urinary glyphosate levels were also studied. Full-voided spot urine samples were collected over the exposure assessment period (0-72 h). Urinary glyphosate levels were determined by liquid chromatography tandem mass spectrometry. The maximum concentration in urine (uCmax), the time of peak glyphosate levels in urine (uTmax), and the urinary elimination half-life (ut1/2) were analyzed using the PKSolver program. The median of uCmax were 27.9, 29.2 and 17.1 μg/g creatinine in a one-time spray group, a two-time spray group Day 1 and a two-time spray group Day 2, respectively. The uTmax was 11.0 h in both study groups. The median of elimination ut1/2 in the one-time and the two-time spray group were 7.0 and 18.1 h, respectively. Although these estimated urinary elimination half-lives may have been impacted by the variation in exposure doses among the participants, it provides the first urinary toxicokinetic data of glyphosate among the Asian population. The toxicokinetic information could be used to increase knowledge and awareness amongst farmers, particularly to minimize the risk of exposure to glyphosate and reduce possible adverse health effects from using pesticide.
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Affiliation(s)
- Kanyapak Kohsuwan
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Unchisa Intayoung
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Supakit Khacha-Ananda
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand; Research Center in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Thailand
| | - Ratana Sapbamrer
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Nut Koonrungsesomboon
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sujitra Techatoei
- Department of Pharmacology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Klintean Wunnapuk
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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15
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Dal’ Bó IF, Teixeira ES, Rabi LT, Peres KC, Nascimento M, Chiamolera MI, Máximo V, Bufalo NE, Ward LS. Alternation between toxic and proliferative effects of Roundup® on human thyroid cells at different concentrations. Front Endocrinol (Lausanne) 2022; 13:904437. [PMID: 35992109 PMCID: PMC9382701 DOI: 10.3389/fendo.2022.904437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/05/2022] [Indexed: 11/21/2022] Open
Abstract
Endocrine-disrupting and carcinogenic effects of glyphosate have long been suspected, but little is known about the effect of compounds used in real life at different concentrations, neither in normal nor in thyroid tumor cells. As cancer cells may have different sensitivities and the effect of the product containing glyphosate may be different from that produced by the active ingredient alone, including the Acceptable Occupational Exposure Level (AOEL=160µg/L) and the Acceptable Daily Intake (ADI=830µg/L) determined by ANVISA, we used two human thyroid-derived cell lines, Nthy-ori 3-1 (from normal follicular cells) and TPC-1 (from papillary carcinoma), to test 15 different concentrations of Roundup® Original DI. Trypan blue (TB), CCK-8 and BrdU assays were used to evaluate cytotoxicity, metabolic activity and proliferation with 24h and 48h exposures in technical and biological triplicates. TB showed an important toxic effect, especially after 24h of exposure, in both cell lines. The AOEL concentration caused the death of 43% and 50% of the Nthy-ori and TPC-1 cells, respectively, in 24 h, while ADI resulted in 35% and 58% of cell death. After 48h of exposure, AOEL and ADI caused a lower number of dead Nthy-ori (33% and 18%) and TPC-1 (33% and 37%) cells, respectively, suggesting that the toxic effect of the product disappears and/or both strains have repair mechanisms that protect them from longer exposures. On the other hand, the CCK-8 assay showed that small concentrations of Roundup have a proliferative effect: 6.5µg/L increased the number of both Nthy-ori and TPC-1 cells at 24h, and the BrdU assay confirmed the stimulatory effect with a 321% increase in the absorbance of Nthy-ori cells at 48h. The herbicide produced even more frequent increases in the BrdU absorbance of TPC-1 cells, mainly at 24h. We conclude that thyroid cells exposed to Roundup present a nonmonotonic dual dose-response curve. Low concentrations of the pesticide, considered acceptable, cause significant cell death but also have an important proliferative effect, especially on TPC-1 cells. This herbicide, widely used around the world, may play a role in the increased incidence rate of thyroid nodules and cancer that has been observed in recent decades.
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Affiliation(s)
- Izabela Fernanda Dal’ Bó
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Elisângela Souza Teixeira
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Larissa Teodoro Rabi
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Karina Colombera Peres
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | - Matheus Nascimento
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
| | | | - Valdemar Máximo
- Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal
- Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Natássia Elena Bufalo
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Laura Sterian Ward
- Laboratory of Cancer Molecular Genetics, School of Medical Sciences, University of Campinas, Campinas, Brazil
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16
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Li ZM, Kannan K. A Method for the Analysis of Glyphosate, Aminomethylphosphonic Acid, and Glufosinate in Human Urine Using Liquid Chromatography-Tandem Mass Spectrometry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:4966. [PMID: 35564359 PMCID: PMC9104544 DOI: 10.3390/ijerph19094966] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/16/2022] [Accepted: 04/18/2022] [Indexed: 12/10/2022]
Abstract
The extensive use of herbicides, such as glyphosate and glufosinate, in crop production during recent decades has raised concerns about human exposure. Nevertheless, analysis of trace levels of these herbicides in human biospecimens has been challenging. Here, we describe a method for the determination of urinary glyphosate, its degradation product aminomethylphosphonic acid (AMPA), and glufosinate using liquid chromatography-tandem mass spectrometry (LC−MS/MS). The method was optimized using isotopically labelled internal standards (13C2, 15N-glyphosate, 13C, 15N, D2-AMPA, and D3-glufosinate) and solid-phase extraction (SPE) with cation-exchange and anion-exchange cartridges. The method provides excellent chromatographic retention, resolution and peak shape of target analytes without the need for strong acidic mobile phases and derivatization steps. The instrument linearity was in the range of 0.1−100 ng/mL, with R > 0.99 in the matrix for all analytes. The method detection limits (MDLs) and the method quantification limits (MQLs) were in the ranges of 0.12 (AMPA and glufosinate)−0.14 (glyphosate) ng/mL and 0.40 (AMPA)−0.48 (glyphosate) ng/mL, respectively. The recoveries of analytes spiked into urine matrix ranged from 79.1% to 119%, with coefficients of variation (CVs) of 4−10%. Repeated analysis of samples for over 2 weeks showed intra-day and inter-day analytical variations of 3.13−10.8% and 5.93−12.9%, respectively. The matrix effects for glyphosate, AMPA, and glufosinate spiked into urine matrix averaged −14.4%, 13.2%, and 22.2%, respectively. The method was further validated through the analysis of external quality assurance proficiency test (PT) urine samples. The method offers optimal sensitivity, accuracy, and precision for the urine-based assessment of human exposure to glyphosate, AMPA, and glufosinate.
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Affiliation(s)
- Zhong-Min Li
- Department of Pediatrics, New York University Grossman School of Medicine, New York, NY 10016, USA;
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Kurunthachalam Kannan
- Department of Pediatrics, New York University Grossman School of Medicine, New York, NY 10016, USA;
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
- King Fahd Medical Research Center, Biochemistry Department, Faculty of Science and Experimental Biochemistry Unit, King Abdulaziz University, Jeddah 80200, Saudi Arabia
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17
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Huch M, Stoll DA, Kulling SE, Soukup ST. Metabolism of glyphosate by the human fecal microbiota. Toxicol Lett 2022; 358:1-5. [PMID: 34933076 DOI: 10.1016/j.toxlet.2021.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/09/2021] [Accepted: 12/17/2021] [Indexed: 11/25/2022]
Abstract
Glyphosate is the most frequently used herbicide worldwide and its application is under discussion due to health concerns. As humans may be exposed to glyphosate, the present study investigated the metabolism of glyphosate by the human fecal microbiota in vitro. Human fecal samples were collected from 15 different volunteers and fecal suspensions were prepared. The human fecal suspension samples were incubated with glyphosate under strictly anaerobic conditions and glyphosate degradation was investigated. Neither a degradation of glyphosate, nor a formation of AMPA (aminomethylphosphonic acid), the known microbial metabolite in soil, was detected. In conclusion, the microbiota of human fecal suspensions did not metabolize glyphosate under the conditions used in our study which hints at the assumption that transformation of glyphosate by the gut microbiota seems to be negligible in humans.
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Affiliation(s)
- Melanie Huch
- Max Rubner-Institut (MRI) - Federal Research Institute of Food and Nutrition, Department of Safety and Quality of Fruit and Vegetables, Karlsruhe, Germany
| | - Dominic A Stoll
- Max Rubner-Institut (MRI) - Federal Research Institute of Food and Nutrition, Department of Safety and Quality of Fruit and Vegetables, Karlsruhe, Germany
| | - Sabine E Kulling
- Max Rubner-Institut (MRI) - Federal Research Institute of Food and Nutrition, Department of Safety and Quality of Fruit and Vegetables, Karlsruhe, Germany
| | - Sebastian T Soukup
- Max Rubner-Institut (MRI) - Federal Research Institute of Food and Nutrition, Department of Safety and Quality of Fruit and Vegetables, Karlsruhe, Germany.
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18
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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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19
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Validation of a simple method for the determination of glyphosate and aminomethylphosphonic acid in human urine by UPLC-MS/MS. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Zambrano-Intriago LA, Amorim CG, Rodríguez-Díaz JM, Araújo AN, Montenegro MCBSM. Challenges in the design of electrochemical sensor for glyphosate-based on new materials and biological recognition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148496. [PMID: 34182449 DOI: 10.1016/j.scitotenv.2021.148496] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 06/13/2023]
Abstract
Glyphosate (GLY) is the main ingredient in the weed killer Roundup and the most widely used pesticide in the world. Studies of the harmful effects of GLY on human health began to become more wide-ranging after 2015. GLY is listed by the International Agency for Research on Cancer (IARC) as a carcinogenic hazard to humans. Moreover, GLY has the property to complex with transition metals and are stable for long periods, being considered a high-risk element for different matrices, such as environmental (soil and water) and food (usually genetically modified crops). Since that, it was noticed an increment in the development of new analytical methods for its determination in different matrices like food, environmental and biological fluids. Noteworthy, the application of electrochemical techniques for downstream detection sparked interest due to the ability to minimize or eliminate the use of polluting chemicals, using simple and affordable equipment. This work aims to review the contribution of the electroanalytical methods for the determination of GLY in different food and environmental matrices. Parameters such as the electrochemical transduction techniques based on the electrical measurement signals, receptor materials for electrodes preparation, and the detection mechanisms are described in this review. The literature review shows that the electrochemical sensors are powerful detection system that can be improved by their design and by their portability to fulfil the needs of the GLY determination in laboratory benches, or even in situ analysis.
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Affiliation(s)
- Luis Angel Zambrano-Intriago
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal; Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Ecuador.
| | - Célia G Amorim
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
| | - Joan Manuel Rodríguez-Díaz
- Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Ecuador; Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo, Ecuador; Programa de Pós-graduação em Engenharia Química, Universidade Federal da Paraíba, João Pessoa, Brazil.
| | - Alberto N Araújo
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
| | - Maria C B S M Montenegro
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, Porto 4050-313, Portugal.
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21
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Kougias DG, Miller E, McEwen A, Reamer H, Kovochich M, Pierce J. Risk Assessment of Glyphosate Exposures from Pilot Study with Simulated Heavy Residential Consumer Application of Roundup ® using a Margin of Safety (MOS) Approach. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2021; 41:1693-1715. [PMID: 33245586 DOI: 10.1111/risa.13646] [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: 12/23/2019] [Revised: 11/03/2020] [Accepted: 11/15/2020] [Indexed: 06/11/2023]
Abstract
Due to the widespread application of glyphosate, a nonselective herbicide, to a variety of resistant food crops, the general population is exposed to glyphosate through dietary intake. Despite this, dietary exposures to glyphosate are considered low in comparison to application-related exposures. Although previous studies have evaluated exposure to horticultural and agricultural workers, to date only one study, which we recently conducted, has characterized exposure to glyphosate in consumers following heavy residential application of a glyphosate-containing herbicide in a residential yard and garden setting. In this previous study, we demonstrated that urinary glyphosate concentrations in these applicators were similar to or in some circumstances greater than those in occupational applicators, likely due to the nature of the simulation study, which ensured a heavy application protocol. However, it is unknown whether these urinary glyphosate concentrations in consumer applicators correspond to internal doses that may be of concern. Therefore, the purpose of this study is to provide a comprehensive risk assessment of glyphosate exposure in consumer applicators using a margin of safety approach. Here, we incorporated data collected from multiple spot urine samples across time from our previous study that assessed consumer exposure to glyphosate from Roundup® application. Estimated internal doses, even with the use of conservative assumptions across unique approaches, were below internal doses estimated from established health-based guidance values. Overall, this study demonstrates that glyphosate exposure from even heavy consumer application of a commercially available glyphosate-containing herbicide does not appear to be a health concern.
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22
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Weisenburger DD. A Review and Update with Perspective of Evidence that the Herbicide Glyphosate (Roundup) is a Cause of Non-Hodgkin Lymphoma. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2021; 21:621-630. [PMID: 34052177 DOI: 10.1016/j.clml.2021.04.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 01/26/2023]
Abstract
Glyphosate-based formulations (GBFs), such as Roundup, are the most heavily used herbicides in the world. In 2015, the International Agency for Research on Cancer (IARC) concluded that glyphosate and GBFs are probably carcinogenic to humans (group 2A), mainly for non-Hodgkin lymphoma (NHL). However, this finding has been controversial, and most pesticide regulatory agencies have not followed their lead. The purpose of this review was to examine the scientific literature linking exposure to glyphosate and GBFs to the development of NHL, with emphasis on new findings since publication of the IARC report. The epidemiologic studies provide ample evidence for an association between exposure to GBFs and an increased risk of NHL. Animal studies have shown that glyphosate is carcinogenic in rodents and causes NHL in mice. Mechanistic studies have demonstrated that glyphosate and GBFs are genotoxic to human lymphocytes, the normal cell of origin of NHL, both in vitro and in vivo. Genotoxic and other biological effects have also been shown in various animal and cell models with these agents even at low doses. A novel mechanism underlying the specificity of glyphosate for NHL, that is upregulation of the B-cell genome mutator enzyme activation-induced cytidine deaminase, has recently been demonstrated. These findings were evaluated holistically using the guidelines for evaluation of general causation set forth by Bradford Hill. This evaluation provides coherent and compelling evidence that glyphosate and GBFs are a cause of NHL in humans exposed to these agents. These findings should prompt new reviews by pesticide regulatory agencies around the world.
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23
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Bressán IG, Llesuy SF, Rodriguez C, Ferloni A, Dawidowski AR, Figar SB, Giménez MI. Optimization and validation of a liquid chromatography-tandem mass spectrometry method for the determination of glyphosate in human urine after pre-column derivatization with 9-fluorenylmethoxycarbonyl chloride. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1171:122616. [PMID: 33744598 DOI: 10.1016/j.jchromb.2021.122616] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 01/19/2021] [Accepted: 02/20/2021] [Indexed: 10/22/2022]
Abstract
In 2015, glyphosate was classified as "Group 2A - probably carcinogenic to humans" by the International Agency for Research on Cancer (IARC). Therefore, public concerns about the environmental and health risks of this substance have rapidly increased. Considering its toxicokinetic characteristics, urinary levels of glyphosate could be a powerful tool for human biomonitoring. Nevertheless, the physicochemical properties of this molecule and the complexity of the matrix make this purpose particularly challenging. In order to solve this problem, the presented study describes a simple LC-MS/MS method for the quantification of glyphosate in human urine after pre-column derivatization with FMOC-Cl. Method development was focused on the optimization of the derivatization reaction in human urine, adjusting critical variables such as pH of borate buffer, FMOC-Cl concentration and derivatization time. Besides, chromatographic separation and spectrometric parameters were also established. The analytical method was fully validated according international guidelines for selectivity, carry over, linearity, accuracy, precision, lower limit of quantitation, matrix effect and stability under different conditions. All performance parameters were within the acceptance criteria. In addition, the method was successfully applied to 52 urine samples obtained from exposed subjects from northern Argentina, laying the foundation for future epidemiological studies.
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Affiliation(s)
- I G Bressán
- Laboratory of Mass Spectrometry, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina; Department of Chemistry, Instituto Universitario Escuela de Medicina del Hospital Italiano, Buenos Aires, Argentina.
| | - S F Llesuy
- Department of Chemistry, Instituto Universitario Escuela de Medicina del Hospital Italiano, Buenos Aires, Argentina
| | - C Rodriguez
- Laboratory of Mass Spectrometry, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A Ferloni
- Epidemiology Section. Medicine Department. Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A R Dawidowski
- Population Health Section. Research Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - S B Figar
- Population Health Section. Research Department, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - M I Giménez
- Laboratory of Mass Spectrometry, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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24
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Bienvenu JF, Bélanger P, Gaudreau É, Provencher G, Fleury N. Determination of glyphosate, glufosinate and their major metabolites in urine by the UPLC-MS/MS method applicable to biomonitoring and epidemiological studies. Anal Bioanal Chem 2021; 413:2225-2234. [PMID: 33547480 DOI: 10.1007/s00216-021-03194-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/12/2021] [Accepted: 01/23/2021] [Indexed: 10/22/2022]
Abstract
The preoccupation concerning glyphosate (GLYP) has rapidly grown over recent years, and the availability of genetically modified crops that are resistant to GLYP or glufosinate (GLUF) has increased the use of these herbicides. The debate surrounding the carcinogenicity of GLYP has raised interest and the desire to gain information on the level of exposure of the population. GLYP and aminomethylphosphonic acid (AMPA) are commonly simultaneously analysed. GLUF is sometimes also monitored, but its major metabolite, 3-[hydroxy(methyl)phosphinoyl]propionic acid (3MPPA), is rarely present in the method. Using a pentafluorobenzyl derivative to extract the analytes from human urine, we present a method that contains four important analytes to monitor human exposure to GLYP and GLUF. The use of the flash freeze technique speeds up the extraction process and requires less organic solvent than conventional liquid-liquid extraction. The limits of detection in the low μg/L range enable the use of this method for epidemiological studies. The results obtained for 35 volunteers from the Quebec City area are presented with the results from multiple interlaboratory comparisons (G-EQUAS, HBM4EU and OSEQAS). This methodology is currently being used in the Maternal-Infant Research on Environmental Chemicals (MIREC-ENDO) study and in the Canadian Health Measures Survey (CHMS).
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Affiliation(s)
- Jean-François Bienvenu
- Centre de Toxicologie du Québec (CTQ), Institut national de santé publique du Québec (INSPQ), 945, avenue Wolfe, Québec, QC, G1V 5B3, Canada.
| | - Patrick Bélanger
- Centre de Toxicologie du Québec (CTQ), Institut national de santé publique du Québec (INSPQ), 945, avenue Wolfe, Québec, QC, G1V 5B3, Canada
| | - Éric Gaudreau
- Centre de Toxicologie du Québec (CTQ), Institut national de santé publique du Québec (INSPQ), 945, avenue Wolfe, Québec, QC, G1V 5B3, Canada
| | - Gilles Provencher
- Centre de Toxicologie du Québec (CTQ), Institut national de santé publique du Québec (INSPQ), 945, avenue Wolfe, Québec, QC, G1V 5B3, Canada
| | - Normand Fleury
- Centre de Toxicologie du Québec (CTQ), Institut national de santé publique du Québec (INSPQ), 945, avenue Wolfe, Québec, QC, G1V 5B3, Canada
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25
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Kongtip P, Nankongnab N, Pundee R, Kallayanatham N, Pengpumkiat S, Chungcharoen J, Phommalachai C, Konthonbut P, Choochouy N, Sowanthip P, Khangkhun P, Yimsabai J, Woskie S. Acute Changes in Thyroid Hormone Levels among Thai Pesticide Sprayers. TOXICS 2021; 9:16. [PMID: 33477987 PMCID: PMC7835790 DOI: 10.3390/toxics9010016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 12/12/2022]
Abstract
The objective of this study was to investigate the relationship of acute pesticide exposures and acute changes in thyroid hormones among Thai farmers. We recruited 78 farmers, who were scheduled to spray insecticides (chlorpyrifos and/or cypermethrin) or herbicides (paraquat and/or glyphosate). On the day before spraying, farmers collected their first morning void urine and went for blood collection. On the spray day, urine samples were collected at end of the spraying event and they were interviewed with questionnaires. The next morning, the first morning void urine and blood samples were collected. Blood samples were analyzed for thyroid hormones. Urine samples were analyzed for the metabolites of the pesticide sprayed. The results showed that the thyroid hormones, free triiodothyronine (FT3) and total triiodothyronine (T3) were significantly reduced as urinary chlorpyrifos metabolite increased the day after spraying. Total thyroxine (T4) significantly increased as cypermethrin metabolites increased the day after spraying. T4 significantly increased as urinary glyphosate levels increased; however, FT3 and T3 decreased significantly as urinary paraquat levels increased the day after spraying. These findings suggest that acute exposures to the pesticides chlorpyrifos, cypermethrin, paraquat and glyphosate can produce acute effects on the hypothalamic-pituitary-thyroid (HPT) axis, acutely altering thyroid hormone levels.
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Affiliation(s)
- Pornpimol Kongtip
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
- Center of Excellence on Environmental Health and Toxicology, EHT, Bangkok 10400, Thailand;
| | - Noppanun Nankongnab
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
- Center of Excellence on Environmental Health and Toxicology, EHT, Bangkok 10400, Thailand;
| | - Ritthirong Pundee
- Nakhonsawan Campus, Mahidol University, Nakhonsawan 60130, Thailand;
| | - Nichcha Kallayanatham
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
| | - Sumate Pengpumkiat
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
| | - Jutamanee Chungcharoen
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
| | - Chavisa Phommalachai
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
| | - Pajaree Konthonbut
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (N.N.); (N.K.); (S.P.); (J.C.); (C.P.); (P.K.)
| | - Nattagorn Choochouy
- Faculty of Public Health, Thammasat University Lampang Campus, Lampang 52190, Thailand;
| | - Preecha Sowanthip
- Center of Excellence on Environmental Health and Toxicology, EHT, Bangkok 10400, Thailand;
| | - Phanthawee Khangkhun
- Bureau of Elderly Health, Department of Health, Ministry of Public Health, Nonthaburi 11000, Thailand;
| | - Jutharak Yimsabai
- Department of Medical Technology and Clinical Pathology, Buddhachinaraj Phitsanulok Hospital, 90 Sithamma Traipidok Road, Muang, Phitsanulok 65000, Thailand;
| | - Susan Woskie
- Department of Public Health, University of Massachusetts Lowell, One University Ave, Lowell, MA 01854-2867, USA;
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26
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Faniband MH, Norén E, Littorin M, Lindh CH. Human experimental exposure to glyphosate and biomonitoring of young Swedish adults. Int J Hyg Environ Health 2021; 231:113657. [PMID: 33130428 DOI: 10.1016/j.ijheh.2020.113657] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 12/30/2022]
Abstract
Glyphosate (GLY), N-(phosphonomethyl) glycine, is the most widely used herbicide in the world. It is a broad-spectrum herbicide, also used in crop desiccation. Agricultural workers may be occupationally exposed and general populations may be exposed to GLY mainly through diet. We studied the kinetics of GLY by measuring the parent compound and its metabolite aminomethylphosphonic acid (AMPA) in urine samples of three volunteers after an experimental oral exposure. We further examined GLY exposure by measuring GLY and AMPA in spot urine samples of 197 young adults in the general population in Scania, southern Sweden. Urine samples were analyzed using LC-MS/MS. In the experimental exposure, three healthy volunteers received an oral dose equivalent to 50% of the ADI for GLY. Urinary samples were collected up to 100 h after the exposure. The excretion of GLY to urine seemed to follow first-order kinetics and a two-phase excretion. The excretion half-life of GLY (density adjusted) was 6-9 h in the rapid phase and 18-33 h in the slower phase. The total dose recovered as unchanged GLY in the urine samples of volunteers was 1-6%. The metabolite AMPA was found to be 0.01-0.04% of the total dose of GLY. In the population of young adults, the median concentration was below 0.1 μg/L and a maximum concentration being 3.39 μg/L (density adjusted). AMPA was generally detected in lower concentrations (maximum = 0.99 μg/L). A moderate correlation (Spearman's ρ = 0.56) was observed between GLY and AMPA concentrations. Overall, the results may suggest that GLY and AMPA partly originate from separate exposures and that unchanged GLY is a more suitable biomarker of exposure.
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Affiliation(s)
- Moosa H Faniband
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden
| | - Erika Norén
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden.
| | - Margareta Littorin
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden
| | - Christian H Lindh
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-221 85, Lund, Sweden
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27
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Franke AA, Li X, Lai JF. Analysis of glyphosate, aminomethylphosphonic acid, and glufosinate from human urine by HRAM LC-MS. Anal Bioanal Chem 2020; 412:8313-8324. [PMID: 33011839 PMCID: PMC8061706 DOI: 10.1007/s00216-020-02966-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/26/2020] [Accepted: 09/22/2020] [Indexed: 11/29/2022]
Abstract
Aminomethylphosphonic acid (AMPA) is the main metabolite of glyphosate (GLYP) and phosphonic acids in detergents. GLYP is a synthetic herbicide frequently used worldwide alone or together with its analog glufosinate (GLUF). The general public can be exposed to these potentially harmful chemicals; thus, sensitive methods to monitor them in humans are urgently required to evaluate health risks. We attempted to simultaneously detect GLYP, AMPA, and GLUF in human urine by high-resolution accurate-mass liquid chromatography mass spectrometry (HRAM LC-MS) before and after derivatization with 9-fluorenylmethoxycarbonyl chloride (Fmoc-Cl) or 1-methylimidazole-sulfonyl chloride (ImS-Cl) with several urine pre-treatment and solid phase extraction (SPE) steps. Fmoc-Cl derivatization achieved the best combination of method sensitivity (limit of detection; LOD) and accuracy for all compounds compared to underivatized urine or ImS-Cl-derivatized urine. Before derivatization, the best steps for GLYP involved 0.4 mM ethylenediaminetetraacetic acid (EDTA) pre-treatment followed by SPE pre-cleanup (LOD 37 pg/mL), for AMPA involved no EDTA pre-treatment and no SPE pre-cleanup (LOD 20 pg/mL) or 0.2-0.4 mM EDTA pre-treatment with no SPE pre-cleanup (LOD 19-21 pg/mL), and for GLUF involved 0.4 mM EDTA pre-treatment and no SPE pre-cleanup (LOD 7 pg/mL). However, for these methods, accuracy was sufficient only for AMPA (101-105%), while being modest for GLYP (61%) and GLUF (63%). Different EDTA and SPE treatments prior to Fmoc-Cl derivatization resulted in high sensitivity for all analytes but satisfactory accuracy only for AMPA. Thus, we conclude that our HRAM LC-MS method is suited for urinary AMPA analysis in cross-sectional studies.
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Affiliation(s)
- Adrian A Franke
- University of Hawaii Cancer Center, Analytical Biochemistry Shared Resource, 701 Ilalo Street, Honolulu, HI, 96813, USA.
| | - Xingnan Li
- University of Hawaii Cancer Center, Analytical Biochemistry Shared Resource, 701 Ilalo Street, Honolulu, HI, 96813, USA
| | - Jennifer F Lai
- University of Hawaii Cancer Center, Analytical Biochemistry Shared Resource, 701 Ilalo Street, Honolulu, HI, 96813, USA
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28
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Ingaramo P, Alarcón R, Muñoz-de-Toro M, Luque EH. Are glyphosate and glyphosate-based herbicides endocrine disruptors that alter female fertility? Mol Cell Endocrinol 2020; 518:110934. [PMID: 32659439 DOI: 10.1016/j.mce.2020.110934] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 12/13/2022]
Abstract
Numerous evidences have alerted on the toxic effects of the exposure to glyphosate on living organisms. Glyphosate is the herbicide most used in crops such as maize and soybean worldwide, which implies that several non-target species are at a high risk of exposure. Although the Environmental Protection Agency (EPA-USA) has reaffirmed that glyphosate is safe for users, there are controversial studies that question this statement. Some of the reported effects are due to exposure to high doses; however, recent evidences have shown that exposure to low doses could also alter the development of the female reproductive tract, with consequences on fertility. Different animal models of exposure to glyphosate or glyphosate-based herbicides (GBHs) have shown that the effects on the female reproductive tract may be related to the potential and/or mechanisms of actions of an endocrine-disrupting compound. Studies have also demonstrated that the exposure to GBHs alters the development and differentiation of ovarian follicles and uterus, affecting fertility when animals are exposed before puberty. In addition, exposure to GBHs during gestation could alter the development of the offspring (F1 and F2). The main mechanism described associated with the endocrine-disrupting effect of GBHs is the modulation of estrogen receptors and molecules involved in the estrogenic pathways. This review summarizes the endocrine-disrupting effects of exposure to glyphosate and GBHs at low or "environmentally relevant" doses in the female reproductive tissues. Data suggesting that, at low doses, GBHs may have adverse effects on the female reproductive tract fertility are discussed.
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Affiliation(s)
- Paola Ingaramo
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Litoral, Santa Fe, Argentina
| | - Ramiro Alarcón
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Litoral, Santa Fe, Argentina
| | - Mónica Muñoz-de-Toro
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Litoral, Santa Fe, Argentina
| | - Enrique H Luque
- Instituto de Salud y Ambiente Del Litoral (ISAL), Facultad de Bioquímica y Ciencias Biológicas, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional Del Litoral, Santa Fe, Argentina.
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29
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Connolly A, Koslitz S, Bury D, Brüning T, Conrad A, Kolossa-Gehring M, Coggins MA, Koch HM. Sensitive and selective quantification of glyphosate and aminomethylphosphonic acid (AMPA) in urine of the general population by gas chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1158:122348. [PMID: 32890819 DOI: 10.1016/j.jchromb.2020.122348] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 11/27/2022]
Abstract
Glyphosate is the highest volume herbicide used worldwide, and its main biodegradation product is aminomethylphosphonic acid (AMPA), both are listed as priority substances in the Human Biomonitoring for Europe (HBM4EU) initiative which aims at improving policy by filling knowledge gaps by targeted research. The objective of the current study was to advance the sensitivity of an existing gas chromatography-tandem mass spectrometry analytical method to measure environmental population exposures. A 50% lower limit of quantification of 0.05 µg/L was achieved for both analytes by slight modifications in sample work-up, and use of another isotope labelled internal standard. In a pilot study, 41 urine samples from the general German population were analysed, of which glyphosate and AMPA could be quantified in 66% and 90% of the samples respectively, which is sufficient to reliably describe distributions of urinary concentrations in the non-occupationally exposed population.
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Affiliation(s)
- Alison Connolly
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany; Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, University Road, Galway H91 CF50, Ireland.
| | - Stephan Koslitz
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Daniel Bury
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
| | - André Conrad
- German Environment Agency (Umweltbundesamt), Berlin/Dessau-Roßlau, Germany
| | | | - Marie A Coggins
- Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, University Road, Galway H91 CF50, Ireland
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance - Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
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Nova P, Calheiros CSC, Silva M. Glyphosate in Portuguese Adults - A Pilot Study. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 80:103462. [PMID: 32755638 DOI: 10.1016/j.etap.2020.103462] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND Glyphosate is a broad-spectrum biocide and the active ingredient in the most widely used herbicides worldwide. Since 2015, when the International Agency for Research on Cancer classified it as a Class 2A carcinogen, global interest in this chemical spiked particularly as regards exposure of the general population. OBJECTIVE An exploratory glyphosate exposure assessment was conducted among Portuguese adults. METHODS Self-selected participants provided first morning urine which was tested for glyphosate and its metabolite aminomethylphosphonic acid (AMPA) at two distinct periods of time, by two different laboratories using gas chromatography with tandem mass spectrometry (GC-MS-MS) and high performance liquid chromatography linked to triple quadrupole mass spectrometry (HPLC-MS/MS), respectively. RESULTS In the first round of testing 28% and 50% presented detectable levels of glyphosate and AMPA respectively, with median values of 0.25 and 0.16 μg/L. Systematically available internal dose values were 8.20E-06 mg/Kg (glyphosate) and 5.04-05 mg/Kg (AMPA). In the second round 73% and 97% presented detectable levels of glyphosate and AMPA respectively with median values of 0.13 and 0.10 μg/L. Systematically available internal dose values were 4.00E-06 mg/Kg (glyphosate) and 3.00E-06 mg/Kg (AMPA). CONCLUSIONS Glyphosate exposure was detected among Portuguese adults, with percentages of glyphosate and AMPA contaminated urine in both rounds of testing and above values from previous studies in other European countries. Systematically available internal doses values were below EFSA's risk assessment values (ADI or AOEL), and as such, the concentration values measured in this study are not per se a human health problem. Even though there were study limitations, it is the first assessment in Portugal and contributes to the overall knowledge map of glyphosate exposure in Europe.
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Affiliation(s)
- Paulo Nova
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
| | - Cristina S C Calheiros
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Margarida Silva
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
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Connolly A, Coggins MA, Koch HM. Human Biomonitoring of Glyphosate Exposures: State-of-the-Art and Future Research Challenges. TOXICS 2020; 8:E60. [PMID: 32824707 PMCID: PMC7560361 DOI: 10.3390/toxics8030060] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 01/27/2023]
Abstract
Glyphosate continues to attract controversial debate following the International Agency for Research on Cancer carcinogenicity classification in 2015. Despite its ubiquitous presence in our environment, there remains a dearth of data on human exposure to both glyphosate and its main biodegradation product aminomethylphosphonic (AMPA). Herein, we reviewed and compared results from 21 studies that use human biomonitoring (HBM) to measure urinary glyphosate and AMPA. Elucidation of the level and range of exposure was complicated by differences in sampling strategy, analytical methods, and data presentation. Exposure data is required to enable a more robust regulatory risk assessment, and these studies included higher occupational exposures, environmental exposures, and vulnerable groups such as children. There was also considerable uncertainty regarding the absorption and excretion pattern of glyphosate and AMPA in humans. This information is required to back-calculate exposure doses from urinary levels and thus, compared with health-based guidance values. Back-calculations based on animal-derived excretion rates suggested that there were no health concerns in relation to glyphosate exposure (when compared with EFSA acceptable daily intake (ADI)). However, recent human metabolism data has reported as low as a 1% urinary excretion rate of glyphosate. Human exposures extrapolated from urinary glyphosate concentrations found that upper-bound levels may be much closer to the ADI than previously reported.
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Affiliation(s)
- Alison Connolly
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance—Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
- Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, University Road, H91 CF50 Galway, Ireland;
| | - Marie A. Coggins
- Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, University Road, H91 CF50 Galway, Ireland;
| | - Holger M. Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance—Institute of the Ruhr-University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany
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Ongono JS, Béranger R, Baghdadli A, Mortamais M. Pesticides used in Europe and autism spectrum disorder risk: can novel exposure hypotheses be formulated beyond organophosphates, organochlorines, pyrethroids and carbamates? - A systematic review. ENVIRONMENTAL RESEARCH 2020; 187:109646. [PMID: 32460093 DOI: 10.1016/j.envres.2020.109646] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND A growing body of evidences suggests an association between early exposure to organophosphates (OPs), organochlorines (OCs), pyrethroids or carbamates and autism spectrum disorder (ASD). However, there are limited data about the other pesticide groups, especially in Europe. OBJECTIVES Based on a systematic review, we aimed to assess the influence of neuro- and thyrotoxic agricultural and domestic pesticides (other than OPs, OCs, pyrethroids and carbamates) authorized in Europe on risk of ASD in children or ASD behavioral phenotypes in rodents. METHODS Pesticides were initially identified in the Hazardous Substances Data Bank. 20 currently used (10 pesticide groups) were retained based on the higher exposure potential. Epidemiological (children) and in vivo (rodents) studies were identified through PubMed, Web of Science and TOXLINE, without restriction of publication date or country (last update: November 2019). The risk of bias and level of evidence were also assessed. This systematic review is registered at the International Prospective Register of Systematic Reviews (PROSPERO, registration number CRD42019145384). RESULTS In total, two epidemiological and 15 in vivo studies were retained, focusing on the azole, neonicotinoid, phenylpyrazole and phosphonoglycine pesticide groups. No study was conducted in Europe. Glyphosate, imidacloprid, clothianidin, myclobutanil, acetamiprid, tebuconazole, thiabendazole and fipronil, globally reported an association with an increased risk of ASD in children and/or ASD behavioral phenotypes in rodents. In children, glyphosate and myclobutanil showed a "moderate level of evidence" in their association with ASD, whereas imidacloprid showed an "inadequate level of evidence". In rodents, clothianidin, imidacloprid and glyphosate showed a "high level of evidence" in their association with altered behavioral, learning and memory skills. CONCLUSION In the framework of environmental risk factors of ASD, novel hypotheses can be formulated about early exposure to eight pesticides. Glyphosate presented the most salient level of evidence. Given their neuro- and thyrotoxic properties, additional studies are needed for the 12 other pesticides not yet studied as potential ASD risk factors according to our inclusion criteria.
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Affiliation(s)
- Jeanne Sandrine Ongono
- Université Paris-Saclay, UVSQ, Inserm, CESP, DevPsy, 94807, Villejuif, France; Department of Psychiatry and Autism Resources Center, University Research and Hospital Center (CHU) of Montpellier, 34000, France.
| | - Remi Béranger
- Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR S 1085, 35000, Rennes, France.
| | - Amaria Baghdadli
- Université Paris-Saclay, UVSQ, Inserm, CESP, DevPsy, 94807, Villejuif, France; Department of Psychiatry and Autism Resources Center, University Research and Hospital Center (CHU) of Montpellier, 34000, France; School of Medicine, Univ. Montpellier, France.
| | - Marion Mortamais
- INSERM, Univ Montpellier, Neuropsychiatry: Epidemiological and Clinical Research, Montpellier, France.
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Bootsikeaw S, Kongtip P, Nankongnab N, Chantanakul S, Sujirarat D, Mahaboonpeeti R, Khangkhun P, Woskie S. Urinary glyphosate biomonitoring of sprayers in vegetable farm in Thailand. HUMAN AND ECOLOGICAL RISK ASSESSMENT : HERA 2020; 27:1019-1036. [PMID: 34539173 PMCID: PMC8448205 DOI: 10.1080/10807039.2020.1797471] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/07/2020] [Accepted: 07/07/2020] [Indexed: 05/26/2023]
Abstract
In Thailand, glyphosate is popular herbicide to control pests in the agricultural sector. This study aimed to measure glyphosate exposure concentrations through inhalation, dermal contact, and urinary glyphosate concentrations among 43 vegetable farmers spraying glyphosate in Bungphra Subdistrict, Phitsanulok Province. Four types of spraying equipment were used, manual pump backpack (n = 3), motorized spray backpack (n = 22), battery pump backpack (n = 16), and high pressure pump (n = 2). Breathing zone air samples were collected using glass fiber filters; dermal contact samples were collected using 100 cm2 cotton patches attached on 10 body locations and urine samples were collected at 3 time points: morning void urine the day before spraying, the end of spraying event, and the morning void urine the next day of spraying. The results showed that the geometric mean (GM; geometric standard deviation [GSD]) of breathing zone concentrations of glyphosate exposure were 9.37 (10.17) μg/m3. The GM (GSD) of total dermal patches exposure concentrations were 7.57 (0.01) mg/h. The legs, back, and arms were the most exposed body areas. The GM (GSD) of urinary glyphosate was found highest among vegetable farmers using manual backpack 46.90 (1.35) μg/g creatinine. Farmers should wear masks and boots to reduce glyphosate exposure by inhalation and dermal contact.
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Affiliation(s)
- Sasivimol Bootsikeaw
- Department of Occupational Health and Safety, Mahidol University Faculty of Public Health, Bangkok, Thailand
| | - Pornpimol Kongtip
- Department of Occupational Health and Safety, Mahidol University Faculty of Public Health, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology, Bangkok, Thailand
| | - Noppanun Nankongnab
- Department of Occupational Health and Safety, Mahidol University Faculty of Public Health, Bangkok, Thailand
- Center of Excellence on Environmental Health and Toxicology, Bangkok, Thailand
| | - Suttinun Chantanakul
- Department of Occupational Health and Safety, Mahidol University Faculty of Public Health, Bangkok, Thailand
| | - Dusit Sujirarat
- Department of Biostatistics, Mahidol University Faculty of Public Health, Bangkok, Thailand
| | - Redeerat Mahaboonpeeti
- Department of Occupational Health and Safety, Faculty of Public Health, Naresuan University, Phitsanulok, Thailand
| | - Phanthawee Khangkhun
- Department of Health, Ministry of Public Health, Bureau of Elderly Health, Nonthaburi, Thailand
| | - Susan Woskie
- Department of Public Health, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, USA
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Pierce JS, Roberts B, Kougias DG, Comerford CE, Riordan AS, Keeton KA, Reamer HA, Jacobs NFB, Lotter JT. Pilot study evaluating inhalation and dermal glyphosate exposure resulting from simulated heavy residential consumer application of Roundup ®. Inhal Toxicol 2020; 32:354-367. [PMID: 32892662 DOI: 10.1080/08958378.2020.1814457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 08/14/2020] [Indexed: 01/25/2023]
Abstract
OBJECTIVES The purpose of this study was to evaluate the individual contributions of inhalation and dermal exposures to urinary glyphosate levels following the heavy residential consumer application of a glyphosate-containing herbicide. METHODS A pilot study was conducted in which each participant mixed and continuously spray-applied 16.3 gallons of a 0.96% glyphosate-containing solution for 100 min using a backpack sprayer. Twelve participants were divided evenly into two exposure groups, one equipped to assess dermal exposure and the other, inhalation exposure. Personal air samples (n = 12) and dermal patch samples (n = 24) were collected on the inhalation group participants and analyzed for glyphosate using HPLC-UV. Serial urine samples collected 30-min prior to application and 3-, 6-, 12-, 24-hr (inhalation and dermal groups) and 36-hr (dermal group only) post-application were analyzed for glyphosate and glyphosate's primary metabolite (AMPA) using HPLC-MS/MS. RESULTS The mean airborne glyphosate concentration was 0.0047 mg/m3, and the mean concentrations of glyphosate for each applicator's four patch samples ranged from 0.04 µg/mm2 to 0.25 µg/mm2. In general, urinary glyphosate, AMPA, and total effective glyphosate levels were higher in the dermal exposure group than the inhalation exposure group, peaked within 6-hr following application, and were statistically indistinguishable from background at 24-hr post-application. CONCLUSIONS This is the first study to characterize the absorption and biological fate of glyphosate in residential consumer applicators following heavy application. The results of this pilot study are consistent with previous studies that have shown that glyphosate is rapidly eliminated from the body, typically within 24 hr following application.
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Mueangkhiao P, Siviroj P, Sapbamrer R, Khacha-Ananda S, Lungkaphin A, Seesen M, Jaikwang P, Wunnapuk K. Biological variation in kidney injury and kidney function biomarkers among farmers in Lamphun province, Thailand. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:12386-12394. [PMID: 31989504 DOI: 10.1007/s11356-020-07661-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
Frequent and long-term exposure to pesticides can induce acute kidney injury and subsequent chronic kidney diseases. In this study, we aimed to investigate the correlation between kidney injury, kidney function biomarkers, and pesticide use in farmers from the Pasang district, Lamphun province, Thailand. A cross-sectional study was performed in 59 farmers occupationally exposed to various types of pesticides. The levels of urinary neutrophil gelatinase-associated lipocalin (uNGAL), serum creatinine (sCr), urinary microalbumin-to-creatinine ratio (ACR), serum cystatin C (sCys-C), estimated glomerular filtration rate (eGFR), and exposure intensity index (EII) were evaluated. Spearman's correlation and a linear regression analysis were carried out to investigate the association between age, pesticide use, EII, kidney injury markers, and kidney function biomarkers. The most common pesticide used in this study area was glyphosate, followed by paraquat and iprodione. Urinary NGAL levels showed a significant correlation with sCys-C levels, EII, and eGFR Cr-Cys. In addition, the sCr levels were associated with glyphosate use (B = 0.08) and EII (B = 0.01). In conclusion, occupation exposure to pesticides is likely to be linked to kidney injury and dysfunction. Pesticide mix status, pesticide application method, equipment repair status, and personal protective equipment (PPE) use are all involved in changes in kidney markers.
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Affiliation(s)
- Patthawee Mueangkhiao
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Penprapa Siviroj
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Ratana Sapbamrer
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Supakit Khacha-Ananda
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Anusorn Lungkaphin
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Mathuramat Seesen
- Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pittaya Jaikwang
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Klintean Wunnapuk
- Department of Forensic Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
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Connolly A, Jones K, Basinas I, Galea KS, Kenny L, McGowan P, Coggins MA. Exploring the half-life of glyphosate in human urine samples. Int J Hyg Environ Health 2019; 222:205-210. [PMID: 30293930 DOI: 10.1016/j.ijheh.2018.09.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND The International Agency for Research on Cancer (IARC) has recently classified glyphosate as a Group 2A 'probably carcinogenic to humans'. Due to this carcinogenic classification and resulting international debate, there is an increased demand for studies evaluating human health effects from glyphosate exposures. There is currently limited information on human exposures to glyphosate and a paucity of data regarding glyphosate's biological half-life in humans. OBJECTIVE This study aims to estimate the human half-life of glyphosate from human urine samples collected from amenity horticulture workers using glyphosate based pesticide products. METHODS Full void urine spot samples were collected over a period of approximately 24 h for eight work tasks involving seven workers. The elimination time and estimation of the half-life of glyphosate using three different measurement metrics: the unadjusted glyphosate concentrations, creatinine corrected concentrations and by using Urinary Excretion Rates (UER) (μg L-1, μmol/mol creatinine and UER μg L-1) was calculated by summary and linear interpolation using regression analysis. RESULTS This study estimates the human biological half-life of glyphosate as approximately 5 ½, 10 and 7 ¼ hours for unadjusted samples, creatinine corrected concentrations and by using UER (μg L-1, μmol/mol creatinine, UER μg L-1), respectively. The approximated glyphosate half-life calculations seem to have less variability when using the UER compared to the other measuring metrics. CONCLUSION This study provides new information on the elimination rate of glyphosate and an approximate biological half-life range for humans. This information can help optimise the design of sampling strategies, as well as assisting in the interpretation of results for human biomonitoring studies involving this active ingredient. The data could also contribute to the development or refinement of Physiologically Based PharmacoKinetic (PBPK) models for glyphosate.
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Affiliation(s)
- Alison Connolly
- Centre for Climate and Air Pollution Studies, School of Physics and The Ryan Institute, National University of Ireland, University Road, Galway, H91 CF50, Ireland.
| | - Kate Jones
- Health and Safety Executive (HSE), Harpur Hill, Buxton, SK17 9JN, UK
| | - Ioannis Basinas
- Centre for Human Exposure Science (CHES), Institute of Occupational Medicine (IOM), Edinburgh, EH14 4AP, UK
| | - Karen S Galea
- Centre for Human Exposure Science (CHES), Institute of Occupational Medicine (IOM), Edinburgh, EH14 4AP, UK
| | - Laura Kenny
- Health and Safety Executive (HSE), Harpur Hill, Buxton, SK17 9JN, UK
| | - Padraic McGowan
- Irish Commissioners for Public Works, Jonathon Swift Street, Trim, Co Meath, C15 NX36, Ireland
| | - Marie A Coggins
- Centre for Climate and Air Pollution Studies, School of Physics and The Ryan Institute, National University of Ireland, University Road, Galway, H91 CF50, Ireland
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Connolly A, Coggins MA, Galea KS, Jones K, Kenny L, McGowan P, Basinas I. Evaluating Glyphosate Exposure Routes and Their Contribution to Total Body Burden: A Study Among Amenity Horticulturalists. Ann Work Expo Health 2019; 63:133-147. [PMID: 30608574 DOI: 10.1093/annweh/wxy104] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 10/19/2018] [Accepted: 12/05/2018] [Indexed: 12/17/2023] Open
Abstract
OBJECTIVE To evaluate determinants of dermal and inadvertent ingestion exposure and assess their contribution to total body burden among amenity horticultural users using glyphosate-based pesticide products. METHODS A dermal and inadvertent ingestion exposure assessment was completed alongside a biomonitoring study among amenity horticultural workers. Linear mixed effect regression models were elaborated to evaluate determinants of exposure and their contribution to total body burden. RESULTS A total of 343 wipe and glove samples were collected from 20 workers across 29 work tasks. Geometric mean (GM) glyphosate concentrations of 0.01, 0.04 and 0.05 µg cm-2 were obtained on wipes from the workers' perioral region and left and right hands, respectively. For disposable and reusable gloves, respectively, GM glyphosate concentrations of 0.43 and 7.99 µg cm-2 were detected. The combined hand and perioral region glyphosate concentrations explained 40% of the variance in the urinary (µg l-1) biomonitoring data. CONCLUSION To the author's knowledge, this is the first study to have investigated both dermal and inadvertent exposure to glyphosate and their contribution to total body burden. Data show the dermal exposure is the prominent route of exposure in comparison to inadvertent ingestion but inadvertent ingestion may contribute to overall body burden. The study also identified potential exposure to non-pesticide users in the workplace and para-occupational exposures.
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Affiliation(s)
- Alison Connolly
- Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, Galway, Ireland
| | - Marie A Coggins
- Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, Galway, Ireland
| | - Karen S Galea
- Centre for Human Exposure Science (CHES), Institute of Occupational Medicine (IOM), Edinburgh, UK
| | - Kate Jones
- Health and Safety Executive (HSE), Harpur Hill, Buxton, UK
| | - Laura Kenny
- Health and Safety Executive (HSE), Harpur Hill, Buxton, UK
| | | | - Ioannis Basinas
- Centre for Human Exposure Science (CHES), Institute of Occupational Medicine (IOM), Edinburgh, UK
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Gillezeau C, van Gerwen M, Shaffer RM, Rana I, Zhang L, Sheppard L, Taioli E. The evidence of human exposure to glyphosate: a review. Environ Health 2019; 18:2. [PMID: 30612564 PMCID: PMC6322310 DOI: 10.1186/s12940-018-0435-5] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 12/03/2018] [Indexed: 05/21/2023]
Abstract
BACKGROUND Despite the growing and widespread use of glyphosate, a broad-spectrum herbicide and desiccant, very few studies have evaluated the extent and amount of human exposure. OBJECTIVE We review documented levels of human exposure among workers in occupational settings and the general population. METHODS We conducted a review of scientific publications on glyphosate levels in humans; 19 studies were identified, of which five investigated occupational exposure to glyphosate, 11 documented the exposure in general populations, and three reported on both. RESULTS Eight studies reported urinary levels in 423 occupationally and para-occupationally exposed subjects; 14 studies reported glyphosate levels in various biofluids on 3298 subjects from the general population. Average urinary levels in occupationally exposed subjects varied from 0.26 to 73.5 μg/L; environmental exposure urinary levels ranged from 0.16 to 7.6 μg/L. Only two studies measured temporal trends in exposure, both of which show increasing proportions of individuals with detectable levels of glyphosate in their urine over time. CONCLUSIONS The current review highlights the paucity of data on glyphosate levels among individuals exposed occupationally, para-occupationally, or environmentally to the herbicide. As such, it is challenging to fully understand the extent of exposure overall and in vulnerable populations such as children. We recommend further work to evaluate exposure across populations and geographic regions, apportion the exposure sources (e.g., occupational, household use, food residues), and understand temporal trends.
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Affiliation(s)
- Christina Gillezeau
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1133, New York, NY 10029 USA
| | - Maaike van Gerwen
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1133, New York, NY 10029 USA
| | - Rachel M. Shaffer
- Department of Environmental and Occupational Health Sciences, University of Washington, 1959 NE Pacific St, Seattle, WA 98195 USA
| | - Iemaan Rana
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, 2121 Berkeley Way, Room 5302, Berkeley, CA 94720-7360 USA
| | - Luoping Zhang
- Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, 2121 Berkeley Way, Room 5302, Berkeley, CA 94720-7360 USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, University of Washington, 1959 NE Pacific St, Seattle, WA 98195 USA
- Department of Biostatistics, University of Washington, Box 357232, Seattle, WA 98195-7232 USA
| | - Emanuela Taioli
- Institute for Translational Epidemiology and Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1133, New York, NY 10029 USA
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