1
|
Qiang S, Mohamed F, Raubenheimer J, Buckley NA, Roberts MS, Mackenzie L. Clinical toxicology of acute glyphosate self-poisoning: impact of plasma concentrations of glyphosate, its metabolite and polyethoxylated tallow amine surfactants on the toxicity. Clin Toxicol (Phila) 2024; 62:483-496. [PMID: 39073455 DOI: 10.1080/15563650.2024.2375584] [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: 10/05/2023] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/30/2024]
Abstract
INTRODUCTION Common major co-formulants in glyphosate-based herbicides, polyethoxylated tallow amine surfactants, are suspected of being more toxic than glyphosate, contributing to the toxicity in humans. However, limited information exists on using polyethoxylated tallow amine concentrations to predict clinical outcomes. We investigated if plasma concentrations of glyphosate, its metabolite and polyethoxylated tallow amines can predict acute kidney injury and case fatality in glyphosate poisoning. METHODS We enrolled 151 patients with acute glyphosate poisoning between 2010 and 2013. Plasma concentrations of glyphosate, its metabolite, aminomethylphosphonic acid, and polyethoxylated tallow amines were determined in 2020 using liquid chromatography-tandem mass spectrometry. Associations between exposure and poisoning severity were assessed. RESULTS Plasma concentrations of glyphosate and aminomethylphosphonic acid demonstrated good and moderate performances in predicting acute kidney injury (≥2), with an area under the receiver operating characteristic curve of 0.83 (95% CI 0.69-0.97) and 0.76 (95% CI 0.59-0.94), respectively. Polyethoxylated tallow amines were detected in one-fifth of symptomatic patients, including one of four fatalities and those with unsaturated tallow moieties being good indicators of acute kidney injury (area under the receiver operating characteristic curve ≥0.7). As the number of repeating ethoxylate units in tallow moieties decreased, the odds of acute kidney injury increased. Glyphosate and aminomethylphosphonic acid concentrations were excellent predictors of case fatality (area under the receiver operating characteristic curve >0.9). DISCUSSION The 2.7% case fatality rate with 49% acute, albeit mild, acute kidney injury following glyphosate poisoning is consistent with previously published data. A population approach using model-based metrics might better explore the relationship of exposure to severity of poisoning. CONCLUSIONS Plasma concentrations of glyphosate and its metabolite predicted the severity of clinical toxicity in glyphosate poisoning. The co-formulated polyethoxylated tallow amine surfactants were even more strongly predictive of acute kidney injury but were only detected in a minority of patients.
Collapse
Affiliation(s)
- Shuping Qiang
- University of South Australia Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Therapeutics Research Centre, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Adelaide, Australia
| | - Fahim Mohamed
- South Asian Clinical Toxicology Research Collaboration, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
- Translational Australian Clinical Toxicology (TACT) Research Group, Discipline of Biomedical Informatics & Digital Health, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
- The Edith Collins Centre (Translational Research in Alcohol Drugs and Toxicology), Sydney Local Health District, Sydney, Australia
| | - Jacques Raubenheimer
- Translational Australian Clinical Toxicology (TACT) Research Group, Discipline of Biomedical Informatics & Digital Health, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Nicholas A Buckley
- South Asian Clinical Toxicology Research Collaboration, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
- Translational Australian Clinical Toxicology (TACT) Research Group, Discipline of Biomedical Informatics & Digital Health, Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Michael S Roberts
- University of South Australia Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Therapeutics Research Centre, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Adelaide, Australia
- Therapeutics Research Centre, The University of Queensland Frazer Institute, The University of Queensland, Brisbane, Australia
| | - Lorraine Mackenzie
- University of South Australia Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Therapeutics Research Centre, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Adelaide, Australia
| |
Collapse
|
2
|
Fang YW, Wang C, Lin CY. Association between urinary glyphosate levels and hand grip strength in a representative sample of US adults: NHANES 2013-2014. Front Public Health 2024; 12:1352570. [PMID: 38450138 PMCID: PMC10915012 DOI: 10.3389/fpubh.2024.1352570] [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: 12/13/2023] [Accepted: 02/01/2024] [Indexed: 03/08/2024] Open
Abstract
Introduction Glyphosate, a widely utilized herbicide globally, has been linked to various health issues, including cancer, birth abnormalities, and reproductive issues. Additionally, there is growing experimental support indicating potential harm to skeletal muscles. Despite this, the impact of glyphosate on human muscle health remains unclear. Methods We examined information gathered from the 2013-2014 National Health and Nutrition Examination Survey (NHANES), which included 1466 adults aged 18 or older. Our primary aim was to investigate the relationship between glyphosate exposure and hand grip strength, as well as its influence on lean muscle mass. Results and discussion Our investigation uncovered a detrimental correlation between glyphosate exposure and all measures of grip strength, except for the second test of the first hand. Specifically, we observed a statistically significant adverse association between glyphosate exposure and combined grip strength, which is calculated as the sum of the highest readings from both hands (ß coefficient of -2.000, S.E. = 0.891, p = 0.040). We did not observe a significant correlation between glyphosate levels, lean muscle mass, and the likelihood of reaching maximum grip strength meeting sarcopenia criteria. Additionally, we observed an interaction between age and glyphosate, as well as between body mass index (BMI) and glyphosate, concerning the association with combined grip strength. In this comprehensive analysis of NHANES data, our study reveals a potential association between glyphosate exposure and hand grip strength in the adult population. Our findings suggest the need for deeper exploration into the health effects of glyphosate exposure and its impact on muscle strength, shedding light on possible public health concerns.
Collapse
Affiliation(s)
- Yu-Wei Fang
- Division of Nephrology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - ChiKang Wang
- Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu, Taiwan
| | - Chien-Yu Lin
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
- Department of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu, Taiwan
- Department of Internal Medicine, En Chu Kong Hospital, New Taipei City, Taiwan
| |
Collapse
|
3
|
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.
Collapse
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.
| |
Collapse
|
4
|
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.
Collapse
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
| |
Collapse
|
5
|
Zhang H, Dou J, Miao R, Hu J, Huo Z, Zhang F, Ji W. An analytical method for the determination of glyphosate and aminomethylphosphoric acid using an anionic polar pesticide column and the application in urine and serum from glyphosate poisoning patients. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1668-1673. [PMID: 36920225 DOI: 10.1039/d3ay00039g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
An analytical method for the determination of glyphosate (GLY) and aminomethylphosphoric acid (AMPA) in biological fluid samples (serum and urine) from poisoning patients using liquid chromatography-tandem mass spectrometry (LC-MS/MS) is established. After the sample pretreatment, including protein precipitation and a modified liquid-liquid extraction method, the chromatographic separation was conducted on a trifunctional modified hydrophilic column. The mobile phases in the gradient program were 2.5% formic acid aqueous solution and acetonitrile. The multiple reaction monitoring (MRM) models and the isotope-labeled internal standards were used in the acquisition process. Good linearities and satisfying recovery rates were obtained in two sample matrices with good RSDs. The detection limits of GLY and AMPA were <2 μg L-1, which were close to those obtained in our previous research. The established method was applied to biological samples from five patients with glyphosate intoxication. The analysis of the trend for the concentration of GLY and AMPA in two biological samples was investigated, and the difference in the downward trend of AMPA in urine was found in patients with a relatively higher concentration of GLY in serum.
Collapse
Affiliation(s)
- Hao Zhang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | - Jianrui Dou
- Yangzhou Center for Disease Control and Prevention, Yangzhou, China
| | - Runfeng Miao
- Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Jiacai Hu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | - Zongli Huo
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | - Feng Zhang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Wenliang Ji
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| |
Collapse
|