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Noack F, Engist D, Gantois J, Gaur V, Hyjazie BF, Larsen A, M'Gonigle LK, Missirian A, Qaim M, Sargent RD, Souza-Rodrigues E, Kremen C. Environmental impacts of genetically modified crops. Science 2024; 385:eado9340. [PMID: 39208101 DOI: 10.1126/science.ado9340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 06/24/2024] [Indexed: 09/04/2024]
Abstract
Genetically modified (GM) crops have been adopted by some of the world's leading agricultural nations, but the full extent of their environmental impact remains largely unknown. Although concerns regarding the direct environmental effects of GM crops have declined, GM crops have led to indirect changes in agricultural practices, including pesticide use, agricultural expansion, and cropping patterns, with profound environmental implications. Recent studies paint a nuanced picture of these environmental impacts, with mixed effects of GM crop adoption on biodiversity, deforestation, and human health that vary with the GM trait and geographic scale. New GM or gene-edited crops with different traits would likely have different environmental and human health impacts.
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Affiliation(s)
- Frederik Noack
- Food and Resource Economics, University of British Columbia, Vancouver, BC, Canada
| | - Dennis Engist
- Food and Resource Economics, University of British Columbia, Vancouver, BC, Canada
| | - Josephine Gantois
- Food and Resource Economics, University of British Columbia, Vancouver, BC, Canada
- Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
| | - Vasundhara Gaur
- Institute for Policy Integrity, New York University School of Law, New York, NY
| | - Batoule F Hyjazie
- Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
| | - Ashley Larsen
- Bren School of Environmental Science & Management, University of California, Santa Barbara, Santa Barbara, CA
| | - Leithen K M'Gonigle
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Anouch Missirian
- Toulouse School of Economics, INRAe, University of Toulouse Capitole, Toulouse, France
| | - Matin Qaim
- Center for Development Research (ZEF), University of Bonn, Germany
- Institute for Food and Resource Economics, University of Bonn, Germany
| | - Risa D Sargent
- Land and Food Systems, University of British Columbia, Vancouver, BC, Canada
| | - Eduardo Souza-Rodrigues
- Department of Economics, University of Toronto, Toronto, Ontario, Canada
- Centre for Economic Policy Research, London, England
| | - Claire Kremen
- Institute for Resources, Environment and Sustainability, University of British Columbia, Vancouver, BC, Canada
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Amazonas JC, Poça KSD, da Silva PVB, Schilithz AOC, Siqueira JDDSB, de Aguiar GS, Alves SR, Otero UB, Sarpa M. Evaluation of genotoxic effects in workers and residents of rural areas exposed to pesticides in Brazil. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2024; 898:503795. [PMID: 39147449 DOI: 10.1016/j.mrgentox.2024.503795] [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: 12/29/2023] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 08/17/2024]
Abstract
Brazil is one of the world's largest consumers of pesticides. This intense use impacts the environment and exposes a wide range of individuals to pesticides, including rural workers who are occupationally exposed and rural residents who are environmentally exposed. We aimed to evaluate the effects of occupational exposure to pesticides on the health of rural workers and rural residents. We conducted an epidemiological study with 104 farmers and 23 rural residents of Casimiro de Abreu (Rio de Janeiro, Brazil). A comparison group (urban residents) comprised 103 residents of the urban area of the same city. We determined the activity of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) using a modified version of Ellman's method to evaluate exposure. In addition, we performed genotoxic and mutagenic analyses with the comet assay and the cytokinesis-block micronucleus (CBMN) assay. There was a reduction in cholinesterase activity, mainly BChE, in rural workers and rural residents compared with urban residents (p = 0.002). There was an increase in genotoxic effects in rural workers compared with urban residents (comet assay, p < 0.001; CBMN assay, p < 0.001). In addition, there was a greater chance of genotoxic changes in rural workers exposed to pesticides based on the comet assay (odds ratio [OR] 7.6, 95 % confidence interval [CI] 6.6-15.9) and the CBMN assay (OR 22.7, 95 % CI 10.3-49.9). We found that individuals occupationally exposed to pesticides are more likely to have genotoxic effects. These findings are useful for the development of programs to monitor populations exposed to genotoxic substances and allow the development of strategies for the prevention, control, and surveillance of effects that result from occupational and environmental exposures to pesticides.
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Affiliation(s)
- Juliana Costa Amazonas
- Laboratório de Toxicologia Ocupacional, Ambiental e Vigilância do Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês de Pombal, 125/Térreo - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil; Laboratório de Toxicologia, Centro de Estudos da Saúde do Trabalhador e Ecologia Humana, Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz (CESTEH/ENSP/FIOCRUZ), Rua Leopoldo Bulhões, 1480 - Manguinhos, Rio de Janeiro, RJ CEP 21041-210, Brazil
| | - Katia Soares da Poça
- Laboratório de Toxicologia Ocupacional, Ambiental e Vigilância do Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês de Pombal, 125/Térreo - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil; Área Técnica Ambiente, Trabalho e Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês do Pombal, 125/6º andar - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil
| | - Paula Vieira Baptista da Silva
- Laboratório de Toxicologia Ocupacional, Ambiental e Vigilância do Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês de Pombal, 125/Térreo - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil
| | - Arthur Orlando Correa Schilithz
- Divisão de Vigilância e Análise de Situação, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês do Pombal, 125/6ºandar - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil
| | | | - Gilberto Santos de Aguiar
- Programa de Saúde do Trabalhador, Secretaria Municipal de Saúde de Casimiro de Abreu, Rio de Janeiro, RJ, Brazil
| | - Sergio Rabello Alves
- Laboratório de Toxicologia, Centro de Estudos da Saúde do Trabalhador e Ecologia Humana, Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz (CESTEH/ENSP/FIOCRUZ), Rua Leopoldo Bulhões, 1480 - Manguinhos, Rio de Janeiro, RJ CEP 21041-210, Brazil
| | - Ubirani Barros Otero
- Área Técnica Ambiente, Trabalho e Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês do Pombal, 125/6º andar - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil
| | - Marcia Sarpa
- Laboratório de Toxicologia Ocupacional, Ambiental e Vigilância do Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês de Pombal, 125/Térreo - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil; Área Técnica Ambiente, Trabalho e Câncer, Coordenação de Prevenção e Vigilância, Instituto Nacional de Câncer - INCA, Rua Marquês do Pombal, 125/6º andar - Centro, Rio de Janeiro, RJ CEP 20230-240, Brazil.
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Thiel KL, da Silva J, Wolfarth M, Vanini J, Henriques JAP, de Oliveira IM, da Silva FR. Assessment of cytotoxic and genotoxic effects of glyphosate-based herbicide on glioblastoma cell lines: Role of p53 in cellular response and network analysis. Toxicology 2024; 508:153902. [PMID: 39094917 DOI: 10.1016/j.tox.2024.153902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Glyphosate, the world's most widely used herbicide, has a low toxicity rating despite substantial evidence of adverse health effects. Furthermore, glyphosate-based formulations (GBFs) contain several other chemicals, some of which are known to be harmful. Additionally, chronic, and acute exposure to GBFs among rural workers may lead to health impairments, such as neurodegenerative diseases and cancer. P53 is known as a tumor suppressor protein, acting as a key regulator of the cellular response to stress and DNA damage. Therefore, mutations in the TP53 gene, which encodes p53, are common genetic alterations found in various types of cancer. Therefore, this study aimed to evaluate the cytotoxicity and genotoxicity of GBF in two glioblastoma cell lines: U87MG (TP53-proficient) and U251MG (TP53-mutant). Additionally, the study aimed to identify the main proteins involved in the response to GBF exposure using Systems Biology in a network containing p53 and another network without p53. The MTT assay was used to study the toxicity of GBF in the cell lines, the clonogenic assay was used to investigate cell survival, and the Comet Assay was used for genotoxicity evaluation. For data analysis, bioinformatics tools such as String 12.0 and Stitch 5.0 were applied, serving as a basis for designing binary networks in the Cytoscape 3.10.1 program. From the in vitro test analyses, it was observed a decrease in cell viability at doses starting from 10 ppm. Comet Assay at concentrations of 10 ppm and 30 ppm for the U251MG and U87MG cell lines, respectively observed DNA damage. The network generated with systems biology showed that the presence of p53 is important for the regulation of biological processes involved in genetic stability and neurotoxicity, processes that did not appear in the TP53-mutant network.
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Affiliation(s)
- Kelly Louise Thiel
- Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, Canoas, RS 92010-000, Brazil
| | - Juliana da Silva
- Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, Canoas, RS 92010-000, Brazil; Laboratory of Genetic Toxicology, Lutheran University of Brazil, Av. Farroupilha 8001, Canoas, RS 92425-900, Brazil.
| | - Micaele Wolfarth
- Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, Canoas, RS 92010-000, Brazil; Laboratory of Genetic Toxicology, Lutheran University of Brazil, Av. Farroupilha 8001, Canoas, RS 92425-900, Brazil
| | - Julia Vanini
- Department of Biophysics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - João Antonio Pêgas Henriques
- Department of Biophysics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós-Graduação em Biotecnologia e em Ciências Médicas, Universidade do Vale do Taquari - UNIVATES, Lajeado, RS, Brazil
| | | | - Fernanda Rabaioli da Silva
- Laboratory of Genetics Toxicology, La Salle University, Av. Victor Barreto, 2288, Canoas, RS 92010-000, Brazil.
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Zhang Y, Li J, Jiao S, Li Y, Zhou Y, Zhang X, Maryam B, Liu X. Microfluidic sensors for the detection of emerging contaminants in water: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172734. [PMID: 38663621 DOI: 10.1016/j.scitotenv.2024.172734] [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: 12/22/2023] [Revised: 03/22/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
In recent years, numerous emerging contaminants have been identified in surface water, groundwater, and drinking water. Developing novel sensing methods for detecting diverse emerging pollutants in water is urgently needed, as even at low concentrations, these pollutants can pose a serious threat to human health and environmental safety. Traditional testing methods are based on laboratory equipment, which is highly sensitive but complex to operate, costly, and not suitable for on-site monitoring. Microfluidic sensors offer several benefits, including rapid evaluation, minimal sample usage, accurate liquid manipulation, compact size, automation, and in-situ detection capabilities. They provide promising and efficient analytical tools for high-performance sensing platforms in monitoring emerging contaminants in water. In this paper, recent research advances in microfluidic sensors for the detection of emerging contaminants in water are reviewed. Initially, a concise overview is provided about the various substrate materials, corresponding microfabrication techniques, different driving forces, and commonly used detection techniques for microfluidic devices. Subsequently, a comprehensive analysis is conducted on microfluidic detection methods for endocrine-disrupting chemicals, pharmaceuticals and personal care products, microplastics, and perfluorinated compounds. Finally, the prospects and future challenges of microfluidic sensors in this field are discussed.
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Affiliation(s)
- Yihao Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Jiaxuan Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Shipu Jiao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Yang Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Yu Zhou
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Xu Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Bushra Maryam
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Xianhua Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China.
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Wren M, Robson M, Buckley B. A Novel Biomonitoring Method to Detect Pyrethroid Metabolites in Saliva of Occupationally Exposed Workers as a Tool for Risk Assessment. HUMAN AND ECOLOGICAL RISK ASSESSMENT : HERA 2024; 30:269-288. [PMID: 39221113 PMCID: PMC11360145 DOI: 10.1080/10807039.2024.2329625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 03/07/2024] [Indexed: 09/04/2024]
Abstract
Saliva is valuable in exposure assessment having been successfully used for drug and environmental pollutant detection, providing a surrogate measure of plasma concentrations. Pyrethroid biomarkers have not previously been assessed in saliva, although are prime candidates for saliva detection. This study's objectives were to 1) develop a liquid-liquid extraction (LLE) method to quantify six pyrethroid metabolites using gas chromatography/ion trap mass spectrometry and 2) assess its application for an occupationally exposed population. Several solvents and mixing protocols were optimized for metabolite recovery. The optimized method was applied to a population of pest control operators (PCOs) and compared against a urine sample before and after a full workday using pesticides. A questionnaire collected demographic information, occupational history, and occupational and non-occupational exposure data. LLE recoveries ranged from 85% - 104% and 72% - 88% for toluene and dichloromethane using slow mixing, and 49% - 103% for methyl tert-butyl ether by fast mixing. Urinary 3-Phenoxybenzoic acid (3PBA) was detected in 100% of pre- and post-work urine samples. Three PCOs had increased urinary pyrethroid metabolite levels post-work. Salivary 3PBA was present below detection limit in two of the three PCO's post-work saliva samples, demonstrating that salivary 3PBA could be measured in PCOs after the workday. This study presents preliminary findings of a potential, low-risk biomonitoring technique that may be utilized in future occupational pyrethroid exposure and risk assessment research.
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Affiliation(s)
- Melody Wren
- Environmental and Occupational Health Sciences Institute and Department of Environmental Sciences, Rutgers University, Piscataway, NJ, USA
| | - Mark Robson
- Department of Plant Biology, Rutgers University, New Brunswick, NJ, USA
| | - Brian Buckley
- Environmental and Occupational Health Sciences Institute and Department of Environmental Sciences, Rutgers University, Piscataway, NJ, USA
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Ravi P, Muralidhar K, Ngaybe MGB, Nanjaiah S, Jayakrishna P, Lowe AA, Krupp K, Wilson AM, von Hippel FA, Chen Z, Gerald LB, Madhivanan P. Qualitative Study to Explore the Occupational and Reproductive Health Challenges among Women Tobacco Farm Laborers in Mysore District, India. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:606. [PMID: 38791820 PMCID: PMC11121108 DOI: 10.3390/ijerph21050606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024]
Abstract
Tobacco farm laborers are primarily women and children working for very low wages. The aim of this study was to explore occupational and reproductive health challenges faced by women tobacco farm laborers in Mysore District, India. We conducted interviews and six focus group discussions among 41 women tobacco farm laborers. Codes and themes were generated based on deductive and inductive approaches using the socioecological model. Participants reported symptoms of green tobacco sickness including headaches, back pain, gastric problems, weakness, and allergies during menstruation, pre-natal, and post-natal periods. Participants had poor awareness about the health effects of tobacco farming, and there were gender inequalities in wages and the use of personal protective equipment. Participants received support from family and community health workers during their pregnancy and post-natal period. Women reported wanting maternity benefits from the tobacco board, as well as monetary support and nutritional supplements. There is a need for health education about the environmental dangers of tobacco among farm laborers, and more supportive policies for women farmworkers during pregnancy and post-natal periods.
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Affiliation(s)
- Priyanka Ravi
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA (P.M.)
| | | | - Maiya G. Block Ngaybe
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA (P.M.)
| | - Shivamma Nanjaiah
- Public Health Research Institute of India (PHRII), Mysore 570020, Karnataka, India
| | - Poornima Jayakrishna
- Public Health Research Institute of India (PHRII), Mysore 570020, Karnataka, India
| | - Ashley A. Lowe
- Advanced Nursing Practice and Science Division, College of Nursing, University of Arizona, Tucson, AZ 85721, USA
- Asthma & Airway Disease Research Center, University of Arizona Health Sciences, Tucson, AZ 85724, USA
| | - Karl Krupp
- Public Health Research Institute of India (PHRII), Mysore 570020, Karnataka, India
- Public Health Practice, Policy, and Translational Research Department, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA
| | - Amanda M. Wilson
- Community, Environment & Policy Department, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA; (A.M.W.)
| | - Frank A. von Hippel
- Community, Environment & Policy Department, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA; (A.M.W.)
| | - Zhao Chen
- Epidemiology and Biostatistics Department, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA
| | - Lynn B. Gerald
- Office of Population Health Sciences, Office of the Vice Chancellor for Health Affairs, University of Illinois, Chicago, IL 60612, USA
| | - Purnima Madhivanan
- Department of Health Promotion Sciences, Mel & Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85721, USA (P.M.)
- Public Health Research Institute of India (PHRII), Mysore 570020, Karnataka, India
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Evenden P, Vandoolaeghe Q, Lecluse Y, Gac AC, Delépée R, Weiswald LB, Boutet-Robinet E, Boulanger M, Bonassi S, Lebailly P, Meryet-Figuière M. Agricultural exposures and DNA damage in PBMC of female farmers measured using the alkaline comet assay. Int Arch Occup Environ Health 2024; 97:353-363. [PMID: 38430240 PMCID: PMC10999382 DOI: 10.1007/s00420-024-02049-z] [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: 10/30/2023] [Accepted: 01/22/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE Several studies investigated the link between agricultural occupational exposures and DNA damage, in an attempt to bring elements of biological plausibility to the increased cancer risk associated with them. However, only a few of these studies focused on females. METHODS The comet assay was performed on PBMC (Peripheral Blood Mononuclear Cells) samples from 245 females working in open field farming and cattle raising, located in the Normandy area of France. Individual questionnaires on tasks performed were administered at the time of sampling to directly assess exposures. Environmental exposures were issued from a questionnaire assessing the farm productions. Linear regression analyses were done using the DNA damage scores. RESULTS Regarding direct exposures, several tasks associated with exposure to potentially harmful chemicals were not associated with DNA damage, but a longer duration of use of herbicide on meadows (p = 0.05) or of cleaning and upkeep of agricultural equipment (p = 0.06) revealed higher DNA damage levels, although the number of exposed women was low. Several indirect and/or environmental exposures were associated with DNA damage in multivariate analyses: a larger surface of meadows (p = 0.006) or the presence of poultry (p = 0.03) was associated with less DNA damage, while the presence of swine (p = 0.01) was associated with higher DNA damage. Smokers and former smokers had less DNA damage than non-smokers (p = 0.0008 and p = 0.03). CONCLUSIONS We report modified levels of DNA damage for those environmentally exposed to meadows, poultry and pig farming, underlining the need for a better knowledge of the potential health risks experienced by females in this setting.
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Affiliation(s)
- P Evenden
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - Q Vandoolaeghe
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - Y Lecluse
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - A C Gac
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - R Delépée
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - L B Weiswald
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - E Boutet-Robinet
- Toxalim (Research Centre in Food Toxicology), INRAE, ENVT, INP-Purpan, UPS, Université de Toulouse, Toulouse, France
| | - M Boulanger
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - S Bonassi
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Rome, Italy
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Roma, Rome, Italy
| | - P Lebailly
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France
| | - M Meryet-Figuière
- Inserm U1086 ANTICIPE (Interdisciplinary Research Unit for Cancer Prevention and Treatment), Normandie Univ, Université de Caen Normandie, Caen, France.
- Comprehensive Cancer Center François Baclesse, UNICANCER, Caen, France.
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Akram Z, Mahjabeen I, Batool M, Kanwal S, Nawaz F, Kayani MA, Rizwan M. Expression deregulation of genes related to DNA repair and lead toxicity in occupationally exposed industrial workers. Int Arch Occup Environ Health 2023; 96:1333-1347. [PMID: 37804366 DOI: 10.1007/s00420-023-02012-4] [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: 07/12/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
OBJECTIVE Globally millions of people working in various industries and are exposed to different toxins which may affect their genetic stability and DNA integrity. Present study was designed to estimate the expression variation of genes related to DNA repair (XRCC1, PARP1) and lead toxicity (ALAD) in exposed industrial workers. METHODS About 200 blood samples were collected from workers of brick kiln, welding, furniture and paint industry (50/industry) along with age and gender matched controls. mRNA expression of genes was measured using RT-PCR. Serum levels of total ROS, POD, TBAR activity was calculated. Blood lead levels were estimated by atomic absorption spectrometer. RESULTS Relative expression of XRCC1 and PARP1 gene was significantly (P < 0.001) upregulated, while ALAD gene expression was downregulated in exposed group compared to control. Expression of XRCC1 and PARP1 was increased (P < 0.001) in exposed workers with > 30 year age compared to control with > 30 year age. Same was observed when < 30 year age group of control and exposed was compared. Likewise, XRCC1 and PARP1 expression was increased (P < 0.001) in exposed workers with > 30 year age compared to workers with < 30 year age. Whereas, ALAD gene showed significant (P < 0.01) decrease in > 30 year age workers compared to control of same age and exposed with < 30 year of age. Relative expression of XRCC1 and PARP1 was increased (P < 0.001) in exposed smokers compared to exposed non-smokers and control smokers. Whereas, ALAD gene expression reduced (P < 0.001) significantly in both groups. Blood lead content was higher (P < 0.001) in exposed group compared to control. Strong correlation was observed between XRCC1, PARP1 and ALAD gene versus age, total exposure duration, exposure per day and lead deposition. ROS, TBARS and POD activity was higher (P < 0.01) in exposed group compared to control group. CONCLUSION Present study suggested deregulation of genes related to DNA repair and lead intoxication in exposed group compared to controls. Strong correlation was observed between selected genes and demographic parameters. Present results revealed altered activity of oxidative stress markers which would induce oxidative damage to DNA integrity and limit the function of repair enzymes.
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Affiliation(s)
- Zertashia Akram
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan.
| | - Ishrat Mahjabeen
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Mariam Batool
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Sana Kanwal
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Fatima Nawaz
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Mahmood Akhtar Kayani
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Muhammad Rizwan
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
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Wambua D, Roman W, Vidanage I, Vidal M, Calafat AM, Ospina M. Online solid phase extraction high-performance liquid chromatography - Isotope dilution - Tandem mass spectrometry quantification of organophosphate pesticides, synthetic pyrethroids, and selected herbicide metabolites in human urine. CHEMOSPHERE 2023; 340:139863. [PMID: 37598954 PMCID: PMC10530585 DOI: 10.1016/j.chemosphere.2023.139863] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
Analytical methods to quantify pesticide biomarkers in human population studies are critical for exposure assessment given the widespread use of pesticides for pest and weed control and their potential for affecting human health. We developed a method to quantify, in 0.2 mL of urine, concentrations of 10 pesticide biomarkers: four organophosphate insecticide metabolites (3,5,6-trichloro-2-pyridinol (TCPy), 2-isopropyl-6-methyl-4-pyrimidinol, para-nitrophenol, malathion dicarboxylic acid); five synthetic pyrethroid insecticide metabolites (4-fluoro-3-phenoxybenzoic acid, 3-phenoxybenzoic acid, cis and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (DCCA), cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid); and the herbicide 2,4-dichlorophenoxyacetic acid. he method is based on enzymatic hydrolysis of conjugated urinary metabolites, extraction and pre-concentration of the deconjugated metabolites using automated online solid-phase extraction, and separation and quantification using liquid chromatography-isotope dilution tandem mass spectrometry. Depending on the analyte, method detection limits were 0.1-0.6 ng/mL; mean accuracy, calculated as spike recoveries, was 91-102%, and total precision, given as percent variation coefficient, was 5.9-11.5%. Percent differences associated with three freeze-thaw cycles, 24-h benchtop storage, and short-term processed sample stability were <14%. Method suitability was assessed by recurring successful participation in external quality assessment schemes and by analyzing samples from subjects with suspected exposure to pesticides (n = 40) or who self-reported consuming an organic diet (n = 50). Interquartile ranges were considerably lower for people consuming an organic diet than for those potentially exposed for cis-DCCA (0.37 ng/mL vs 0.75 ng/mL), trans-DCCA (0.88 ng/mL vs 1.78 ng/mL) and TCPy (1.81 ng/mL vs 2.48 ng/mL). This method requires one-fifth of the sample used in our previous method and is suitable for assessing background exposures to select pesticides in large human populations and for studies with limited sample volumes.
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Affiliation(s)
- Dickson Wambua
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA.
| | - William Roman
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA
| | - Isuru Vidanage
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA
| | - Meghan Vidal
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA
| | - Maria Ospina
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, MS S103-2, Atlanta, GA, 30341, USA
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10
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González N, Pàmies C, Martinez P, Martí L, Domingo JL, Nadal M, Marquès M. Effects of an organic diet intervention on the levels of organophosphorus metabolites in an adult cohort. Food Res Int 2023; 173:113354. [PMID: 37803657 DOI: 10.1016/j.foodres.2023.113354] [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: 06/20/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 10/08/2023]
Abstract
Pesticides are a group of organic compounds used to control weeds or insect infestations in agriculture. Diet is the major route of human exposure to these compounds, which can cause serious health problems, even when the intake occurs at low concentrations. Hence, the consumption of organic food is an appropriate strategy to minimize the exposure to pesticides. A prospective, randomized study was conducted to assess the impact of an organic dietary intervention on the levels of urinary dialkyl phosphates (DAP). A screening of 204 pesticides was also carried out in order to confirm the absence of these compounds in organic food. The analytical results showed that only 20 of the 204 pesticides (9.8 %) had concentrations above the limit of quantification in one or more samples of the organic food consumed by the participants. It is substantially lower than the levels of pesticides found in other studies analysing conventional food, confirming the diet as suitable for the organic dietary intervention. A general reduction of most DAP metabolites in urine was found, being significant (p < 0.05) the decrease of dimethyl phosphate (DMP) (0.49 µg/g creatinine in Day 1 vs. 0.062 µg/g creatinine in Day 6), dimethyl thiophosphate (DMTP) (0.49 µg/g creatinine in Day 1 vs. 0.093 µg/g creatinine in Day 6) and diethyl phosphate (DEP) (0.28 µg/g creatinine in Day 1 vs. 0.12 µg/g creatinine in Day 6). In addition, the molar score for the total dimethyl DAP (ΣMP) and total dialkyl phosphate (ΣDAP) also showed significant differences after changing a conventional diet by an organic diet, being reduced from 0.008 µmol/g to 0.002 µmol/g for ΣMP and from 0.012 µmol/g to 0.003 µmol/g for ΣDAP. To the best of our knowledge, this is the first study that evaluates both the impact of an organic diet in the exposure to DAP and the levels of 204 pesticides in the organic food provided to the participants. In summary, the consumption of organic products decreases the dietary intake of pesticides, thus reducing also the potential adverse effects on human health.
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Affiliation(s)
- Neus González
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Carla Pàmies
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Paula Martinez
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Laura Martí
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - José L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Martí Nadal
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain
| | - Montse Marquès
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain.
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11
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Kumar V, Sharma N, Sharma P, Pasrija R, Kaur K, Umesh M, Thazeem B. Toxicity analysis of endocrine disrupting pesticides on non-target organisms: A critical analysis on toxicity mechanisms. Toxicol Appl Pharmacol 2023; 474:116623. [PMID: 37414290 DOI: 10.1016/j.taap.2023.116623] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/19/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
Endocrine disrupting compounds are the chemicals which mimics the natural endocrine hormones and bind to the receptors made for the hormones. Upon binding they activate the cascade of reaction which leads to permanent activating of the signalling cycle and ultimately leads to uncontrolled growth. Pesticides are one of the endocrine disrupting chemicals which cause cancer, congenital birth defects, and reproductive defects in non-target organisms. Non-target organisms are keen on exposing to these pesticides. Although several studies have reported about the pesticide toxicity. But a critical analysis of pesticide toxicity and its role as endocrine disruptor is lacking. Therefore, the presented review literature is an endeavour to understand the role of the pesticides as endocrine disruptors. In addition, it discusses about the endocrine disruption, neurological disruption, genotoxicity, and ROS induced pesticide toxicity. Moreover, biochemical mechanisms of pesticide toxicity on non-target organisms have been presented. An insight on the chlorpyrifos toxicity on non-target organisms along with species names have been presented.
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Affiliation(s)
- Vinay Kumar
- Bioconversion and Tissue Engineering Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam-602105, India.
| | - Neha Sharma
- Metagenomics and Bioprocess Design Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Preeti Sharma
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Ritu Pasrija
- Department of Biochemistry, Maharshi Dayanand University, Rohtak, Haryana 124001, India
| | - Komalpreet Kaur
- Punjab Agricultural University, Institute of Agriculture, Gurdaspur 143521, India
| | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Bangalore 560029, Karnataka, India
| | - Basheer Thazeem
- Waste Management Division, Integrated Rural Technology Centre (IRTC), Palakkad 678592, Kerala, India
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12
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Lucchesi CA, Vasilatis DM, Mantrala S, Chandrasekar T, Mudryj M, Ghosh PM. Pesticides and Bladder Cancer: Mechanisms Leading to Anti-Cancer Drug Chemoresistance and New Chemosensitization Strategies. Int J Mol Sci 2023; 24:11395. [PMID: 37511154 PMCID: PMC10380322 DOI: 10.3390/ijms241411395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Multiple risk factors have been associated with bladder cancer. This review focuses on pesticide exposure, as it is not currently known whether agricultural products have a direct or indirect effect on bladder cancer, despite recent reports demonstrating a strong correlation. While it is known that pesticide exposure is associated with an increased risk of bladder cancer in humans and dogs, the mechanism(s) by which specific pesticides cause bladder cancer initiation or progression is unknown. In this narrative review, we discuss what is currently known about pesticide exposure and the link to bladder cancer. This review highlights multiple pathways modulated by pesticide exposure with direct links to bladder cancer oncogenesis/metastasis (MMP-2, TGF-β, STAT3) and chemoresistance (drug efflux, DNA repair, and apoptosis resistance) and potential therapeutic tactics to counter these pesticide-induced affects.
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Affiliation(s)
- Christopher A. Lucchesi
- VA Northern California Health Care System, Mather, CA 95655, USA; (D.M.V.); (M.M.)
- Department of Surgical & Radiological Sciences, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA
| | - Demitria M. Vasilatis
- VA Northern California Health Care System, Mather, CA 95655, USA; (D.M.V.); (M.M.)
- Department of Urological Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
| | - Saisamkalpa Mantrala
- VA Northern California Health Care System, Mather, CA 95655, USA; (D.M.V.); (M.M.)
| | - Thenappan Chandrasekar
- Department of Urological Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
| | - Maria Mudryj
- VA Northern California Health Care System, Mather, CA 95655, USA; (D.M.V.); (M.M.)
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA 95616, USA
| | - Paramita M. Ghosh
- VA Northern California Health Care System, Mather, CA 95655, USA; (D.M.V.); (M.M.)
- Department of Urological Surgery, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
- Department of Biochemistry and Molecular Medicine, School of Medicine, University of California Davis, Sacramento, CA 95817, USA
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13
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Cresto N, Forner-Piquer I, Baig A, Chatterjee M, Perroy J, Goracci J, Marchi N. Pesticides at brain borders: Impact on the blood-brain barrier, neuroinflammation, and neurological risk trajectories. CHEMOSPHERE 2023; 324:138251. [PMID: 36878369 DOI: 10.1016/j.chemosphere.2023.138251] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/11/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Pesticides are omnipresent, and they pose significant environmental and health risks. Translational studies indicate that acute exposure to high pesticide levels is detrimental, and prolonged contact with low concentrations of pesticides, as single and cocktail, could represent a risk factor for multi-organ pathophysiology, including the brain. Within this research template, we focus on pesticides' impact on the blood-brain barrier (BBB) and neuroinflammation, physical and immunological borders for the homeostatic control of the central nervous system (CNS) neuronal networks. We examine the evidence supporting a link between pre- and postnatal pesticide exposure, neuroinflammatory responses, and time-depend vulnerability footprints in the brain. Because of the pathological influence of BBB damage and inflammation on neuronal transmission from early development, varying exposures to pesticides could represent a danger, perhaps accelerating adverse neurological trajectories during aging. Refining our understanding of how pesticides influence brain barriers and borders could enable the implementation of pesticide-specific regulatory measures directly relevant to environmental neuroethics, the exposome, and one-health frameworks.
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Affiliation(s)
- Noemie Cresto
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Isabel Forner-Piquer
- Centre for Pollution Research and Policy, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH, United Kingdom.
| | - Asma Baig
- Centre for Pollution Research and Policy, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH, United Kingdom
| | - Mousumi Chatterjee
- Centre for Pollution Research and Policy, Department of Life Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Kingston Lane, Uxbridge, UB8 3PH, United Kingdom
| | - Julie Perroy
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | | | - Nicola Marchi
- Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France.
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14
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Passos JDC, Felisbino K, Laureano HA, Guiloski IC. Occupational exposure to pesticides and its association with telomere length - A systematic review and meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157715. [PMID: 35914599 DOI: 10.1016/j.scitotenv.2022.157715] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/19/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Telomere length is a common biomarker for the cumulative effect of environmental factors on aging-related diseases, therefore an association has been hypothesized between occupational exposure to pesticides and shorter telomere length. OBJECTIVE This study is a systematic review and meta-analysis aiming to examine the association between telomere length and occupational exposure to pesticides. METHODS We systematically searched in SciELO, PubMed, Scopus, Embase, Cochrane, Lilacs, Science Direct, and Web of Science databases for all observational studies containing measurements of telomere length on groups occupationally exposed to pesticides. Data were synthesized through qualitative synthesis and meta-analysis. We estimated the associations between exposed and non-exposed groups by using the natural log of the response ratio (lnRR). Heterogeneity was quantified using the Cochran Q test and I2 statistics. RESULTS Six studies were included in the qualitative synthesis and meta-analysis, with a total of 480 participants exposed to pesticides. The time of exposure evaluated 391 participants that had a range of 5 to >30 years of occupational exposure. Most studies presented shorter telomere length in the occupationally exposed group. From the six studies included in the meta-analysis, three presented telomere length measurement as a single copy gene (T/S), and three presented telomere length measurement as base pairs (bp). The statistical analysis pooled estimates (log ratio of means) of the telomere length in both measurements (T/S and bp) showed a shortening of telomere length in the exposed group when compared with the non-exposed (control) group. Two of six studies reported longer telomere length in the group exposed to pesticides. DISCUSSION Our findings suggest an association between occupational exposure to pesticides and shorter telomere length. However, we found a small number of studies to include in our meta-analysis, being required more high-quality studies to strengthen our findings and conclusions.
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Affiliation(s)
- Jaqueline Dal Curtivo Passos
- Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil; Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil.
| | - Karoline Felisbino
- Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil; Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
| | | | - Izonete Cristina Guiloski
- Faculdades Pequeno Príncipe, Curitiba, Paraná, Brazil; Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
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15
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Scandolara TB, Valle SF, Esteves C, Scherer NDM, de Armas EM, Furtado C, Gomes R, Boroni M, Jaques HDS, Alves FM, Rech D, Panis C, Bonvicino CR. Somatic DNA Damage Response and Homologous Repair Gene Alterations and Its Association With Tumor Variant Burden in Breast Cancer Patients With Occupational Exposure to Pesticides. Front Oncol 2022; 12:904813. [PMID: 35875117 PMCID: PMC9305859 DOI: 10.3389/fonc.2022.904813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
Homologous recombination is a crucial pathway that is specialized in repairing double-strand breaks; thus, alterations in genes of this pathway may lead to loss of genomic stability and cell growth suppression. Pesticide exposure potentially increases cancer risk through several mechanisms, such as the genotoxicity caused by chronic exposure, leading to gene alteration. To analyze this hypothesis, we investigated if breast cancer patients exposed to pesticides present a different mutational pattern in genes related to homologous recombination (BRCA1, BRCA2, PALB2, and RAD51D) and damage-response (TP53) concerning unexposed patients. We performed multiplex PCR-based assays and next-generation sequencing (NGS) of all coding regions and flanking splicing sites of BRCA1, BRCA2, PALB2, TP53, and RAD51D in 158 unpaired tumor samples from breast cancer patients on MiSeq (Illumina) platform. We found that exposed patients had tumors with more pathogenic and likely pathogenic variants than unexposed patients (p = 0.017). In general, tumors that harbored a pathogenic or likely pathogenic variant had a higher mutational burden (p < 0.001). We also observed that breast cancer patients exposed to pesticides had a higher mutational burden when diagnosed before 50 years old (p = 0.00978) and/or when carrying BRCA1 (p = 0.0138), BRCA2 (p = 0.0366), and/or PALB2 (p = 0.00058) variants, a result not found in the unexposed group. Our results show that pesticide exposure impacts the tumor mutational landscape and could be associated with the carcinogenesis process, therapy response, and disease progression. Further studies should increase the observation period in exposed patients to better evaluate the impact of these findings.
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Affiliation(s)
- Thalita Basso Scandolara
- Department of Genetics, Biology Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sara Ferreira Valle
- Department of Genetics, Biology Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cristiane Esteves
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Nicole de Miranda Scherer
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Elvismary Molina de Armas
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
- Department of Informatics, Pontificia Universidade Católica (PUC)-Rio, Rio de Janeiro, Brazil
| | - Carolina Furtado
- Division of Genetics, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Renan Gomes
- Division of Genetics, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | - Mariana Boroni
- Bioinformatics and Computational Biology Laboratory, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
| | | | - Fernanda Mara Alves
- Laboratory of Tumor Biology, State University of West Paraná, Francisco Beltrão, Brazil
| | - Daniel Rech
- Laboratory of Tumor Biology, State University of West Paraná, Francisco Beltrão, Brazil
- Francisco Beltrão Cancer Hospital, Francisco Beltrão, Brazil
| | - Carolina Panis
- Laboratory of Tumor Biology, State University of West Paraná, Francisco Beltrão, Brazil
| | - Cibele Rodrigues Bonvicino
- Department of Genetics, Biology Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Division of Genetics, Instituto Nacional de Câncer José Alencar Gomes da Silva (INCA), Rio de Janeiro, Brazil
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16
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Arbo MD, Garcia SC, Sarpa M, Da Silva Junior FM, Nascimento SN, Garcia ALH, Da Silva J. Brazilian workers occupationally exposed to different toxic agents: A systematic review on DNA damage. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 879-880:503519. [PMID: 35914865 DOI: 10.1016/j.mrgentox.2022.503519] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/23/2022] [Accepted: 06/21/2022] [Indexed: 10/17/2022]
Abstract
The evaluation of genotoxicity in workers exposed to different toxic agents is very important, especially considering the association between these exposures in a chronic context and DNA damage. Assessing biomarkers of exposure and, when possible, early biomarkers of effect, contributes to elucidating the potential toxic mechanisms involved in genotoxicity and its contribution to chronic non-communicable diseases. In Brazil, the biggest country in South America, workers are exposed to hazardous physical and chemical agents. Considering that these exposures occur, in most cases, throughout the worker's whole life, this is an important public health concern in Brazil. Therefore, this systematic review aims to analyze occupational exposure to chemical and physical agents and the association with DNA damage in studies carried out in Brazil from 1980 to 2021. A systematic and comprehensive literature search was performed in different databases based on occupational exposure to chemical and physical agents and DNA damage. Only full articles on studies that investigated experimental evidence on occupational exposure in Brazil and assessed DNA damage were included, amounting to 89 articles. Five main occupational exposure groups were identified: pesticides (36%), organic solvents (20%), dust and particles (16%), metals (11%), and ionizing radiation (6%). Another group called "others" included studies (11%) that did not fall into these main groups. It was found that comet assay and micronucleus tests are the most adopted methods to detect DNA damage. Occupational exposures were most associated with DNA damage. However, further improvements in study design would be needed to better characterize the association between biomonitoring and DNA damage, particularly to account for confounding factors.
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17
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Dalberto D, Alves J, Garcia ALH, de Souza MR, Abella AP, Thiesen FV, Salvador M, Santos Branco CD, Marroni N, Bona S, Schemitt E, Da Silva FR, Da Silva J. Exposure in the tobacco fields: Genetic damage and oxidative stress in tobacco farmers occupationally exposed during harvest and grading seasons. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 878:503485. [PMID: 35649679 DOI: 10.1016/j.mrgentox.2022.503485] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 06/15/2023]
Abstract
Agricultural workers engaged in tobacco cultivation are constantly exposed to large amounts of harmful agents, such as pesticides and nicotine. Furthermore, most of the flue-cured tobacco leaves are manually graded exposing workers to agents such as tobacco-specific nitrosamines. This study aimed to evaluate genetic damage and oxidative stress in tobacco farmers occupationally exposed during the harvest and grading seasons. We obtained data on DNA damage detected in Comet assay in blood cells and micronucleus experiment with buccal cells from 241 individuals. The serum cotinine levels and nitrates were also evaluated. The Comet Assay results showed a showed an increased visual score for males and females during harvest time and tobacco grading. An increase of micronucleated and binucleated cells was observed in the grading group compared to the control and harvest groups. The oxidative stress measurements showed a clear increase of thiobarbituric acid reactive substances (TBARS) in tobacco farmers during harvest time, and trolox equivalent antioxidant capacity (TEAC) in individuals during harvest and grading time compared to the controls. Significant increases of the cotinine levels were observed during the harvest and grading period (harvest>grading), and nitrates for the grading period compared to the control. In this study, tobacco farmers presented compromised DNA integrity associated with enhanced oxidative stress levels.
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Affiliation(s)
- Daiana Dalberto
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Jodel Alves
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Ana Letícia Hilário Garcia
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil; Laboratory of Genetic Toxicology, PPGSDH, La Salle University (UniLaSalle), Canoas, RS, Brazil
| | - Melissa Rosa de Souza
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Angélica Pich Abella
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Flávia V Thiesen
- Toxicology Institute, Catholic Pontificial University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Mirian Salvador
- Biotechnology Institute, University of Caxias do Sul, Caxias do Sul (UCS), RS, Brazil
| | | | - Norma Marroni
- PPG Biological Sciences - Physiology and PPG Medicine - Medical Sciences at UFRGS, Porto Alegre, RS, Brazil; Laboratory of Pneumological Sciences and Inflammation - Hospital de Clínicas de Porto Alegre, RS, Brazil
| | - Silvia Bona
- PPG Biological Sciences - Physiology and PPG Medicine - Medical Sciences at UFRGS, Porto Alegre, RS, Brazil
| | - Elizangela Schemitt
- PPG Biological Sciences - Physiology and PPG Medicine - Medical Sciences at UFRGS, Porto Alegre, RS, Brazil
| | | | - Juliana Da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil; Laboratory of Genetic Toxicology, PPGSDH, La Salle University (UniLaSalle), Canoas, RS, Brazil.
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18
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Mota TFM, Sampaio AR, Vasconcelos MW, de Castilhos Ghisi N. Allium cepa test vs. insecticides: a scientometric and meta-analytical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:42678-42691. [PMID: 35089509 DOI: 10.1007/s11356-021-15953-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 08/09/2021] [Indexed: 06/14/2023]
Abstract
Insecticides stand out as the most dangerous pesticides, and many of them can cause cytotoxic and genotoxic effects in organisms. For this reason, a systematic review was performed focusing on the effect of insecticides on Allium cepa system by two ways: (1) a scientometric study to identify trends and gaps in the literature on the evaluation of insecticides to guide future research efforts and (2) a meta-analytical approach compiling the information to obtain an overall result about insecticide effect on A. cepa. It was found that there is an increasing production of articles in this research area. The H-index of our data set was 11, with an average of 13.72 citations per item. The leader country in this research area was India, followed by Turkey and Brazil. The best cited research area was "Environmental Sciences" and "Environmental Sciences and Ecology," followed by "Cell Biology." The most used keywords were genotoxicity, pesticides, and insecticide. The meta-analytical test showed that the number of micronuclei found in onion cells treated with insecticides is higher than that in untreated ones, and the use of pesticides reduced the mitotic index. In conclusion, it is evident the need for more studies about biotechnology, nanotechnology, and biopesticides to develop safer pesticides.
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Affiliation(s)
- Thais Fernandes Mendonça Mota
- Collegiate of Biological Sciences, Universidade Estadual do Paraná (UNESPAR), Campus Paranavaí, Avenida Gabriel Esperidião, s/n, Jardim Morumbi, 87703-000 Paranavaí, Paraná, Brazil.
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil.
| | - Amanda Roberta Sampaio
- Graduate Program in Agroecossistems, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
| | - Marina Wust Vasconcelos
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
| | - Nédia de Castilhos Ghisi
- Graduate Program in Biotechnology, Universidade Tecnológica Federal do Paraná (UTFPR), Campus Dois Vizinhos, Estrada para Boa Esperança s/n, km 04, Comunidade Sao Cristovão, P.O. Box 157, Dois Vizinhos, Paraná, 85660-000, Brazil
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The effectiveness of educational interventions aimed at agricultural workers' knowledge, behaviour, and risk perception for reducing the risk of pesticide exposure: a systematic review and meta-analysis. Int Arch Occup Environ Health 2022; 95:1167-1178. [PMID: 35103845 DOI: 10.1007/s00420-022-01838-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/12/2022] [Indexed: 11/05/2022]
Abstract
AIM The aim of this study was to determine the effectiveness of educational interventions aimed at agricultural workers' knowledge, behaviour, and risk perception for reducing the risk of pesticide exposure. METHOD All studies published in the English language between the years 2000 and 2020 were screened on relevant databases. The study protocol was registered on PROSPERO. Randomised controlled studies (RCTs) and quasi-experimental studies meeting the inclusion and exclusion criteria according to the PICOS criteria were included. In line with the PRISMA flow diagram, 38 studies were included in the systematic review and meta-analysis. Risk of bias was assessed with the Cochrane risk-of-bias assessment tool. A random-effects model was applied and Hedge's g was used to calculate effect size. FINDINGS Five of the included studies are RCTs, two are cluster RCTs, 17 are quasi-experimental studies with experimental and control groups, and 14 have single-group pretest-posttest study designs. Educational interventions had a large effect on knowledge level (Hedge's g = 0.890), a medium effect on behaviour level (Hedge's g = 0.707), and a small effect on risk perception (Hedge's g = 0.377). No publication bias was detected. The largest effect of educational interventions on both knowledge and behaviour levels belonged to studies grounded on a theoretical basis and carried out between the years 2011 and 2020. CONCLUSION It was determined that educational interventions are an appropriate method for reducing the pesticide exposure risks of agricultural workers. To increase the effectiveness of these interventions, it is recommended that consideration is given to a theoretical basis, the use of multiple education components, and evidence-based practices.
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Combined Modification of Fiber Materials by Enzymes and Metal Nanoparticles for Chemical and Biological Protection. Int J Mol Sci 2022; 23:ijms23031359. [PMID: 35163283 PMCID: PMC8835833 DOI: 10.3390/ijms23031359] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/13/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
To obtain fiber materials with pronounced chemical-biological protection, metal (Zn or Ta) nanoparticles were jointly applied with polyelectrolyte complexes of enzymes and polypeptides being their stabilizers. Computer modeling revealed the preferences between certain polyelectrolyte partners for N-acyl-homoserine lactone acylase and hexahistidine-tagged organophosphorus hydrolase (His6-OPH) possessing the quorum quenching (QQ) behavior with bacterial cells. The combinations of metal nanoparticles and enzymes appeared to function better as compared to the combinations of the same QQ-enzymes with antibiotics (polymyxins), making it possible to decrease the applied quantities by orders of magnitude while giving the same effect. The elimination of Gram-positive and Gram-negative bacterial cells from doubly modified fiber materials notably increased (up to 2.9-fold), whereas His6-OPH retained its hydrolytic activity in reaction with organophosphorus compounds (up to 74% of initially applied activity). Materials with the certain enzyme and Zn nanoparticles were more efficient against Bacillus subtilis cells (up to 2.1-fold), and Ta nanoparticles acted preferentially against Escherichia coli (up to 1.5-fold). Some materials were proved to be more suitable for combined modification by metal nanoparticles and His6-OPH complexes as antimicrobial protectants.
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21
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Mustafa M, Dar SA, Azmi S, Haque S. The Role of Environmental Toxicant-Induced Oxidative Stress in Male Infertility. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:17-32. [PMID: 36472814 DOI: 10.1007/978-3-031-12966-7_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Infertility is a serious public health issue affecting around 15% of couples globally. Of the 60-80 million people of reproductive age affected by infertility, 40-50% are due to male factor while 30-40% of cases are still idiopathic. The recent global deterioration in sperm quality raises apprehensions regarding the toxic effects of environmental pollutants on reproductive health of males. Environmental toxicants have shown strong evidences for inducing oxidative stress affecting spermatogenesis severely, thereby leading to reduced sperm motility, count, and DNA damage. Reactive oxygen species (ROS) influences the spermatozoa development and transit process both internally and externally. Low level of ROS is indispensable for critical physiological sperm processes like sperm capacitation, motility, acrosome reaction, hyper-activation, sperm-oocyte interaction, etc., while excessive ROS disrupt antioxidant molecules which is detrimental to normal functioning of the sperm. Hence, identification of potential environmental toxicant may have clinical relevance for early screening and diagnosis of male infertility.
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Affiliation(s)
- Mohammad Mustafa
- Scientific Research Centre, Prince Sultan Military Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Sajad Ahmad Dar
- Research and Scientific Studies Unit, College of Nursing, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Sarfuddin Azmi
- Scientific Research Centre, Prince Sultan Military Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing, Jazan University, Jazan, Kingdom of Saudi Arabia.
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Nascimento FDA, Silva DDME, Pedroso TMA, Ramos JSA, Parise MR. Farmers exposed to pesticides have almost five times more DNA damage: a meta-analysis study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:805-816. [PMID: 34342827 DOI: 10.1007/s11356-021-15573-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
We carried out a meta-analytical review of possible DNA damage resulting from occupational exposure to pesticides in farmers in the scientific literature. After the search, screening, and eligibility criteria steps, we included 42 studies to analyze random effect calculation. DNA damage in farmers occupationally exposed to pesticides represents an effect of SMD 4.63 [CI 95% 3.94-5.32; p <0.001]. We observed a high heterogeneity rate between the studies and an asymmetry of the bias analysis results. We performed a meta-regression on the parameters. The Olive Tail Moment (OTM) was the most effective comet assay parameter in the evaluated studies. The Damage Index (DI) was more conservative and highlighted the variability between studies caused by distinct methodologies that showed more significant effects and greater deviations. An analysis of confounding factors demonstrated a slight DNA damage in smokers who were occupationally exposed to pesticides compared to nonsmokers, indicating genotoxicity but smaller than the pesticide effect. The present study shows the greater risk that occupationally exposed rural workers have of developing related diseases due to pesticides' genotoxic effect.
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Affiliation(s)
- Felipe de Araújo Nascimento
- Mutagenesis Laboratory, Department of Genetics, Institute of Biological Sciences, Postgraduate Program in Genetics and Molecular Biology, Federal University of Goiás, ICB I-Room 218/228, Campus Universitário, CEP, Goiânia, GO, 74690-900, Brazil.
| | - Daniela de Melo E Silva
- Mutagenesis Laboratory, Department of Genetics, Institute of Biological Sciences, Postgraduate Program in Genetics and Molecular Biology, Federal University of Goiás, ICB I-Room 218/228, Campus Universitário, CEP, Goiânia, GO, 74690-900, Brazil
| | - Thays Millena Alves Pedroso
- Mutagenesis Laboratory, Department of Genetics, Institute of Biological Sciences, Postgraduate Program in Genetics and Molecular Biology, Federal University of Goiás, ICB I-Room 218/228, Campus Universitário, CEP, Goiânia, GO, 74690-900, Brazil
| | - Jheneffer Sonara Aguiar Ramos
- Mutagenesis Laboratory, Department of Genetics, Institute of Biological Sciences, Postgraduate Program in Genetics and Molecular Biology, Federal University of Goiás, ICB I-Room 218/228, Campus Universitário, CEP, Goiânia, GO, 74690-900, Brazil
| | - Michelle Rocha Parise
- Mutagenesis Laboratory, Department of Genetics, Institute of Biological Sciences, Postgraduate Program in Genetics and Molecular Biology, Federal University of Goiás, ICB I-Room 218/228, Campus Universitário, CEP, Goiânia, GO, 74690-900, Brazil
- Department of Pharmacology, Graduate Program in Genetics and Molecular Biology, Federal University of Jataí, Jataí, GO, Brazil
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Barrón Cuenca J, de Oliveira Galvão MF, Ünlü Endirlik B, Tirado N, Dreij K. In vitro cytotoxicity and genotoxicity of single and combined pesticides used by Bolivian farmers. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2022; 63:4-17. [PMID: 34881454 DOI: 10.1002/em.22468] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 05/27/2023]
Abstract
We previously showed that farmers in Bolivia are exposed to many pesticides, some at elevated levels, and that this was associated with increased risk of genetic damage. To improve the understanding of possible mixture effects, the cytotoxicity and genotoxicity of pesticides were studied in vitro using human liver HepG2 cells. The studied pesticides were 2,4-D, chlorpyrifos, cypermethrin, glyphosate, methamidophos, paraquat, profenofos, and tebuconazole. Three mixtures (U1, U2, and U3) were based on profiles of urinary pesticide metabolites and one mixture on the most frequently used pesticides (S1). The results showed that paraquat and methamidophos were the most cytotoxic pesticides (EC50 ≤0.3 mM). Paraquat, chlorpyrifos, tebuconazole, and the U1, U2, and U3 mixtures, which contained a large proportion of either chlorpyrifos or tebuconazole, significantly increased intracellular ROS levels. Most pesticides activated DNA damage signaling through proteins Chk1 and H2AX. Strongest responses were elicited by paraquat, profenofos, chlorpyrifos, cypermethrin, and the S1 mixture, which contained 25% paraquat. Comet assay revealed significant increases of DNA damage in response to paraquat, cypermethrin, and U2 and S1 mixtures, which contained high levels of cypermethrin and paraquat, respectively. In summary, we showed that the tested pesticides, alone or in mixtures, in general induced oxidative stress and that most pesticides, and especially paraquat and cypermethrin, were genotoxic in HepG2 cells. We could also show that mixtures dominated by these two pesticides displayed a marked genotoxic potency, which agreed with our previous population studies.
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Affiliation(s)
- Jessika Barrón Cuenca
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Genetic Institute, Medicine Faculty, Universidad Mayor de San Andrés, La Paz, Bolivia
| | | | - Burcu Ünlü Endirlik
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Noemi Tirado
- Genetic Institute, Medicine Faculty, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Kristian Dreij
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Minimizing Occupational Exposure to Pesticide and Increasing Control Efficacy of Pests by Unmanned Aerial Vehicle Application on Cowpea. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11209579] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pesticide operators are often exposed to high levels of contaminants, leading to potential adverse health impacts on these agricultural workers. In tropical regions, pesticide applicators are more vulnerable to dermal exposure than their counterparts in temperate regions. Thus, it is highly desirable to develop new spraying methods to minimize the pesticide exposure level without sacrificing the pest control efficiency. Due to their flexibility, high efficiency, and lower labor intensity, unmanned aerial vehicles (UAVs) have attracted considerable attention in precision pest management. However, the pesticide operator exposure assessment during the spraying application with UAVs, especially the comparison with conventional ground sprayers, has not been well investigated. In this work, the control effect against thrips on cowpea and operator exposure determination by aerial and ground spraying in Hainan Province were carried out and compared. When biopesticide spinetoram with the same dosage was applied, the field control efficacy against cowpea thrips sprayed by UAVs was higher than that of knapsack electric sprayers. Moreover, UAV spraying could greatly reduce water consumption and working time. For UAV spraying, when the amounts of water applied per hectare were 22.5, 30, and 37.5 L, the control effects on thrips on the first day were about 69.79%, 80.15%, and 80.58%, respectively. When Allura Red as a pesticide surrogate was applied under similar spraying scenarios with the field control against thrips on cowpea, the average total unit exposure of the knapsack operator (1952.02 mg/kg) was greatly higher than that of the UAV operator (134.51 mg/kg). The present research indicates that plant protection UAV is the direction of development of modern intensive sustainable agriculture.
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Dahiri B, Martín-Reina J, Carbonero-Aguilar P, Aguilera-Velázquez JR, Bautista J, Moreno I. Impact of Pesticide Exposure among Rural and Urban Female Population. An Overview. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9907. [PMID: 34574830 PMCID: PMC8471259 DOI: 10.3390/ijerph18189907] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 11/27/2022]
Abstract
Pesticides are substances that have become widely used in agriculture and the human exposure to these substances may cause adverse health outcomes. Non-occupational exposure to them can come from many sources, such as food or water. For occupational exposure, many studies have been conducted in men, as they have been mostly in charge of work related to these substances. Nonetheless, the information available concerning the exposure in women is very scarce. In addition, an important differentiation between rural and urban areas has been established, rural areas being known as the most exposed ones due to plantation fields. However, the application of higher concentrations of herbicides in small urban areas is taking a lot of importance currently as well. Regardless of gender, the conditions of exposure, and the environment, the exposure to these pesticides can have different effects on health from early life stages, resulting in different outcomes ranging from neurodevelopmental effects in newborns to different types of cancers. In this review, we discussed the toxicity of the most commonly used pesticides and the main impact on the health of the general population, focusing mainly on the effect in women from both rural and urban areas, and the different stages of development, from pregnancy or lactation to the outcomes of these exposures for their children.
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Affiliation(s)
- Bouchra Dahiri
- Area of Toxicology, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (B.D.); (J.M.-R.); (I.M.)
| | - José Martín-Reina
- Area of Toxicology, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (B.D.); (J.M.-R.); (I.M.)
| | - Pilar Carbonero-Aguilar
- Area of Toxicology, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (B.D.); (J.M.-R.); (I.M.)
| | - José Raúl Aguilera-Velázquez
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (J.R.A.-V.); (J.B.)
| | - Juan Bautista
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (J.R.A.-V.); (J.B.)
| | - Isabel Moreno
- Area of Toxicology, Department of Nutrition and Bromatology, Toxicology and Legal Medicine, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain; (B.D.); (J.M.-R.); (I.M.)
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26
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Usman M, Priya K, Pandit S, Gupta P. Cancer risk and nullity of Glutathione-S-transferase mu and theta 1 in occupational pesticide workers. Curr Pharm Biotechnol 2021; 23:932-945. [PMID: 34375184 DOI: 10.2174/1389201022666210810092342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 12/08/2022]
Abstract
Occupational exposure to pesticides has been associated with adverse health conditions, including genotoxicity and cancer. Nullity of GSTT1/GSTM1 increases the susceptibility of pesticide workers to these adverse health effects due to lack of efficient detoxification process created by the absence of these key xenobiotic metabolizing enzymes. However, this assertion does not seem to maintain its stance at all the time; some pesticide workers with the null genotypes do not present the susceptibility. This suggests the modulatory role of other confounding factors, genetic and environmental conditions. Pesticides, aggravated by the null GSTT1/GSTM1, cause genotoxicity and cancer through oxidative stress and miRNA dysregulation. Thus, the absence of these adverse health effects together with the presence of null GSTT1/GSTM1 genotypes demands further explanation. Also, understanding the mechanism behind the protection of cells - that are devoid of GSTT1/GSTM1 - from oxidative stress constitutes a great challenge and potential research area. Therefore, this review article highlights the recent advancements in the presence and absence of cancer risk in occupational pesticide workers with GSTT1 and GSTM1 null genotypes.
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Affiliation(s)
- Muhammad Usman
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Kanu Priya
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Soumya Pandit
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
| | - Piyush Gupta
- Department of Life Sciences, School of Basic Sciences and Research, Sharda University, KP-III, Greater Noida- 201310 [U.P.], India
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27
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Vera-Herrera L, Sadutto D, Picó Y. Non-Occupational Exposure to Pesticides: Experimental Approaches and Analytical Techniques (from 2019). Molecules 2021; 26:3688. [PMID: 34208757 PMCID: PMC8235395 DOI: 10.3390/molecules26123688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Pesticide residues are a threat to the health of the global population, not only to farmers, applicators, and other pesticide professionals. Humans are exposed through various routes such as food, skin, and inhalation. This study summarizes the different methods to assess and/or estimate human exposure to pesticide residues of the global population. METHODS A systematic search was carried out on Scopus and web of science databases of studies on human exposure to pesticide residues since 2019. RESULTS The methods to estimate human health risk can be categorized as direct (determining the exposure through specific biomarkers in human matrices) or indirect (determining the levels in the environment and food and estimating the occurrence). The role that analytical techniques play was analyzed. In both cases, the application of generic solvent extraction and solid-phase extraction (SPE) clean-up, followed by liquid or gas chromatography coupled to mass spectrometry, is decisive. Advances within the analytical techniques have played an unquestionable role. CONCLUSIONS All these studies have contributed to an important advance in the knowledge of analytical techniques for the detection of pesticide levels and the subsequent assessment of nonoccupational human exposure.
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Affiliation(s)
| | | | - Yolanda Picó
- Food and Environmental Safety Research Group of the University of Valencia (SAMA-UV), Desertification Research Centre (CIDE), CSIC-GV-UV, Moncada-Naquera Road km 4.5, Moncada, 46113 Valencia, Spain; (L.V.-H.); (D.S.)
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28
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Thorson JLM, Beck D, Ben Maamar M, Nilsson EE, Skinner MK. Epigenome-wide association study for pesticide (Permethrin and DEET) induced DNA methylation epimutation biomarkers for specific transgenerational disease. Environ Health 2020; 19:109. [PMID: 33148267 PMCID: PMC7643320 DOI: 10.1186/s12940-020-00666-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Permethrin and N,N-diethyl-meta-toluamide (DEET) are the pesticides and insect repellent most commonly used by humans. These pesticides have been shown to promote the epigenetic transgenerational inheritance of disease in rats. The current study was designed as an epigenome-wide association study (EWAS) to identify potential sperm DNA methylation epimutation biomarkers for specific transgenerational disease. METHODS Outbred Sprague Dawley gestating female rats (F0) were transiently exposed during fetal gonadal sex determination to the pesticide combination including Permethrin and DEET. The F3 generation great-grand offspring within the pesticide lineage were aged to 1 year. The transgenerational adult male rat sperm were collected from individuals with single and multiple diseases and compared to non-diseased animals to identify differential DNA methylation regions (DMRs) as biomarkers for specific transgenerational disease. RESULTS The exposure of gestating female rats to a permethrin and DEET pesticide combination promoted transgenerational testis disease, prostate disease, kidney disease, and the presence of multiple disease in the subsequent F3 generation great-grand offspring. The disease DMRs were found to be disease specific with negligible overlap between different diseases. The genomic features of CpG density, DMR length, and chromosomal locations of the disease specific DMRs were investigated. Interestingly, the majority of the disease specific sperm DMR associated genes have been previously found to be linked to relevant disease specific genes. CONCLUSIONS Observations demonstrate the EWAS approach identified disease specific biomarkers that can be potentially used to assess transgenerational disease susceptibility and facilitate the clinical management of environmentally induced pathology.
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Affiliation(s)
- Jennifer L M Thorson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Eric E Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA.
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What Socio-Economic and Political Factors Lead to Global Pesticide Dependence? A Critical Review from a Social Science Perspective. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17218119. [PMID: 33153166 PMCID: PMC7663108 DOI: 10.3390/ijerph17218119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 01/30/2023]
Abstract
Dependence on chemical pesticides has become one of the most pressing challenges to global environmental sustainability and public health. Considerable regulatory efforts have been taken to mitigate pesticide dependence, which however has resulted in a prevalent ‘managerial failure’. Massive pesticide application has generated severe genetic resistance from pests, which has in turn further aggravated pesticide dependence and thus induced agrochemical industries to develop new pesticide varieties. This review proposes to look beyond the resistance-dependence nexus and presents a comprehensive discussion about global pesticide dependence in a social science perspective, i.e., revealing the socio-economic and political factors that reinforce pesticide dependence. These factors are classified into five intertwined themes: (1) agricultural regime, (2) social process of pesticide application, (3) economic analysis, (4) politics and governance, and (5) promotional failure of alternatives. It is found that pesticide dependence is not just a technological issue in the sphere of natural sciences, but more a human-made issue, with deep-seated socio-economic and political reasons. Addressing contemporary trap of global pesticide dependence entails a full acknowledgement and comprehension of the complex and intertwined factors. Furthermore, this review identifies two major explanatory approaches underlying the extant social science literature: a structuralist approach that stresses macro-level structures such as institutions, policies and paradigms, and an individualist approach that focuses on the decision-making of farmers at the micro level. This review recognizes the limitations of the two approaches and calls for transcending the duality. This study advocates a policy framework that emphasizes alignment and coordination from multi-dimensions, multi-actors and multi-scales. For future research, collaborations between natural and social scientists, and more integrated and interdisciplinary approaches should be strengthened.
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