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Mendes EJ, Mazon SC, Marsaro IB, Hermes ME, Sachett A, Bertoncello KT, de Moura FR, da Silva Júnior FMR, Müller LG, Lima-Rezende CA, Siebel AM. Investigation on the mancozeb toxicity in adult zebrafish ( Danio rerio). JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:616-629. [PMID: 38721962 DOI: 10.1080/15287394.2024.2352787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2024]
Abstract
Agriculture has gained increasing importance in response to the continuous growth of the world population and constant need for food. To avoid production losses, farmers commonly use pesticides. Mancozeb is a fungicide used in agriculture as this compound is effective in combating fungi that harm crops. However, this fungicide may also produce damage to non-target organisms present in soil and water. Therefore, this study aimed to investigate the influence of exposure to mancozeb on survival rate, locomotor activity, behavior, and oxidative status utilizing adult zebrafish (Danio rerio) as a model following exposure to environmentally relevant concentrations of this pesticide. The experimental groups were negative control, positive control, and mancozeb (0.3; 1.02; 3.47; 11.8 or 40 μg/L). Zebrafish were exposed to the respective treatments for 96 hr. Exposure to mancozeb did not markedly alter survival rate and oxidative status of Danio rerio. At a concentration of 11.8 μg/L, the fungicide initiated changes in locomotor pattern of the animals. The results obtained suggest that the presence of mancozeb in the environment might produce locomotor alterations in adult zebrafish, which subsequently disrupt the animals' innate defense mechanisms. In nature, this effect attributed to mancozeb on non-target organisms might result in adverse population impacts and ecological imbalance.
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Affiliation(s)
- Ellen Jaqueline Mendes
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | - Samara Cristina Mazon
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | | | - Maria Eduarda Hermes
- Curso de Farmácia, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | - Adrieli Sachett
- Competence Centre on Health Technologies, Tartu, Estonia
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
| | - Kanandra Taisa Bertoncello
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | - Fernando Rafael de Moura
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - Flavio Manoel Rodrigues da Silva Júnior
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
| | - Liz Girardi Müller
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
- Curso de Farmácia, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | - Cássia Alves Lima-Rezende
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
- Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
| | - Anna Maria Siebel
- Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
- Curso de Ciências Biológicas, Universidade Comunitária da Região de Chapecó, Chapecó, Brazil
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, Brazil
- Departamento de Farmacologia, Universidade Federal do Paraná, Curitiba, Brazil
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Paganotto Leandro L, Vitória Takemura Mariano M, Kich Gomes K, Beatriz Dos Santos A, Sousa Dos Anjos J, Rodrigues de Carvalho N, Eugênio Medina Nunes M, Farina M, Posser T, Luis Franco J. Permissible concentration of mancozeb in Brazilian drinking water elicits oxidative stress and bioenergetic impairments in embryonic zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 333:122013. [PMID: 37369298 DOI: 10.1016/j.envpol.2023.122013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
Mancozeb (MZ) is widely used as a fungicide in Brazil due to its effectiveness in combating fungal infections in plantations. However, its toxicity to non-target organisms, including aquatic organisms, has been reported in the literature. Recently, Brazilian legislation was updated to allow a concentration of 8 μg/L of MZ in drinking water (Ordinance GM/MS nº 888, of May 4, 2021). However, the safety of this concentration for aquatic organisms has not yet been put to the test. To address this gap, we conducted a study using zebrafish (Danio rerio) embryos at 4 hpf exposed to MZ at the concentration allowed by law, as well as slightly higher sublethal concentrations (24, 72, and 180 μg/L), alongside a control group. We evaluated various morphophysiological markers of toxicity, including survival, spontaneous movements, heart rate, hatching rate, body axis distortion, total body length, total yolk sac area, and total eye area. Additionally, we measured biochemical biomarkers such as reactive oxygen species (ROS) levels, lipid peroxidation, non-protein thiols (NPSH), and mitochondrial bioenergetic parameters. Our results showed that the concentration of 8 μg/L, currently permitted in drinking water according to Brazilian legislation, increased ROS production levels and caused alterations in mitochondrial physiology. Among the markers assessed, mitochondrial bioenergetic function appeared to be the most sensitive indicator of MZ embryotoxicity, as a decrease in complex I activity was observed at concentrations of 8 and 180 μg/L. Furthermore, concentrations higher than 8 μg/L impaired morphophysiological markers. Based on these findings, we can infer that the concentration of MZ allowed in drinking water by Brazilian environmental legislation is not safe for aquatic organisms. Our study provides evidence that this fungicide is a potent embryotoxic agent, highlighting the potential risks associated with its exposure.
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Affiliation(s)
- Luana Paganotto Leandro
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil; Department of Molecular Biology and Biochemistry. Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS, 97105-900, Brazil
| | - Maria Vitória Takemura Mariano
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil
| | - Karen Kich Gomes
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil
| | - Ana Beatriz Dos Santos
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil
| | - Jaciana Sousa Dos Anjos
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil
| | | | - Mauro Eugênio Medina Nunes
- Department of Genetics and Exercise Metabolism. Graduate Program in Molecular Biology, Federal University of Sao Paulo, 1500 Sena Madureira St, São Paulo, SP, 04021-001, Brazil
| | - Marcelo Farina
- Department of Biochemistry, Center for Biological Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-900, Brazil
| | - Thais Posser
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil
| | - Jeferson Luis Franco
- Oxidative Stress and Cell Signaling Research Group, Interdisciplinary Center for Biotechnology Research - CIPBIOTEC, Federal University of Pampa, São Gabriel, RS, 97307-020, Brazil.
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Nuchniyom P, Intui K, Laoung-On J, Jaikang C, Quiggins R, Photichai K, Sudwan P. Effects of Nelumbonucifera Gaertn. Petal Tea Extract on Hepatotoxicity and Oxidative Stress Induced by Mancozeb in Rat Model. TOXICS 2023; 11:480. [PMID: 37368582 DOI: 10.3390/toxics11060480] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
Mancozeb (Mz) is one of the most widely used pesticides that has been reported to cause adverse human health risks. White Nelumbo nucifera (N. nucifera) petals have therapeutic properties to prevent toxicity. Hence, this study attempted to determine the effects of N. nucifera extract on hepatotoxicity and oxidative stress in mancozeb-treated rats. Seventy-two male rats were divided into nine groups and designed with a control; N. nucifera extract was administered at the doses of 0.55, 1.1, and 2.2 mg/kg bw/day, Mz was administered at 500 mg/kg bw/day, and the co-treatment groups (N. nucifera and Mz) were administered 0.55, 1.1, and 2.2 mg/kg bw/day of N. nucifera followed by administering Mz 500 mg/kg bw/day daily for 30 days. The results showed that all doses of N. nucifera extract did not induce hepatic toxicity and could suppress the toxicity of mancozeb by increasing body weight gain and decreasing relative liver weight, lobular inflammation, and total injury score. The combination treatment also decreased the molecular markers of oxidative stress (2-hydroxybutyric acid, 4-hydroxynonenal, l-tyrosine, pentosidine, and N6-carboxymethyllysine). Furthermore, the reduced glutathione and oxidized glutathione contents were adjusted close to the normal level. Therefore, N. nucifera extract is a natural antioxidant supplement that could decrease the toxicity of mancozeb and can be safely consumed.
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Affiliation(s)
- Pimchanok Nuchniyom
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Ketsarin Intui
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraporn Laoung-On
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Churdsak Jaikang
- Department of Toxicology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Ranida Quiggins
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kornravee Photichai
- Center of Veterinary Diagnosis and Technology Transfer, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Paiwan Sudwan
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Dehghani A, Pourjafari F, Koohkan F, Haghpanh T, Pourjafari F, Sheibani V, Afarinesh MR. L-carnitine attenuates acoustic startle reflex dysfunction in adult male rats exposed to mancozeb. Toxicol Ind Health 2023; 39:115-126. [PMID: 36650049 DOI: 10.1177/07482337231151739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The fungicide mancozeb increases oxygen-free radicals in the central nervous system. As an antioxidant, L-carnitine protects DNA and cell membranes from damage caused by oxygen-free radicals. The present study investigated how L-carnitine affected the acoustic startle response (ASR) in rats exposed to mancozeb. In this experimental study, male Wistar rats were gavaged orally with mancozeb (500, 1000, and 2000 mg/kg), L-carnitine (100, 200, and 400 mg/kg), or L-carnitine (200 mg/kg) + mancozeb (500 mg/kg) three times in 1 week. In the sham group, saline (0.9%, 10 mL/kg) was gavaged at a volume equivalent to that of the drugs. The control group did not receive any treatment. The results showed that locomotor activity and the percentage of prepulse inhibition in the mancozeb groups decreased compared to the sham group while these parameters increased in the L-carnitine group (200 mg/kg) compared to sham rats. In conclusion, mancozeb may increase the risk factor for cognitive diseases such as schizophrenia in people exposed to it while pretreatment with L-carnitine can attenuate the toxic effect.
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Affiliation(s)
- Ali Dehghani
- Department of Medical Genetics, Faculty of Medical Sciences, 48503Tarbiat Modares University, Tehran, Iran
| | - Farimah Pourjafari
- Department of Biology, Faculty of Science, 196469University of Bojnord, Bojnord, Iran
| | - Faeze Koohkan
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
| | - Tahereh Haghpanh
- Anatomical Sciences Department, School of Medicine, 48463Kerman University of Medical Sciences, Kerman, Iran
| | - Fahimeh Pourjafari
- Anatomical Sciences Department, School of Medicine, 48463Kerman University of Medical Sciences, Kerman, Iran
| | - Vahid Sheibani
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Afarinesh
- Neuroscience Research Center, Institute of Neuropharmacology48463Kerman University of Medical Sciences, Kerman, Iran
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Costa C, Teodoro M, Giambò F, Catania S, Vivarelli S, Fenga C. Assessment of Mancozeb Exposure, Absorbed Dose, and Oxidative Damage in Greenhouse Farmers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191710486. [PMID: 36078202 PMCID: PMC9518406 DOI: 10.3390/ijerph191710486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 05/28/2023]
Abstract
Mancozeb (MNZ) is a fungicide commonly employed in many countries worldwide. This study assesses MNZ absorption dynamics in 19 greenhouse farmers, specifically following dermal exposure, aiming to verify the efficacy of both preventive actions and protective equipment. For data collection, a multi-assessment approach was used, which included a survey to record study population features. MNZ exposure was assessed through the indirect measurement of ethylene thiourea (ETU), widely employed as an MNZ biomarker. The ETU concentration was measured with the patch method, detecting environmental ETU trapped in filter paper pads, applied both on skin and working clothes, during the 8 h work shift. Urine and serum end-of-shift samples were also collected to measure ETU concentrations and well-known oxidative stress biomarkers, respectively, namely reactive oxygen metabolites (ROMs), advanced oxidation protein products (AOPPs), and biological antioxidant potential (BAP). It was observed that levels of ETU absorbed and ETU excreted were positively correlated. Additionally, working clothes effectively protected workers from MNZ exposure. Moreover, following stratification of the samples based on the specific working duty (i.e., preparation and spreading of MNZ and manipulation of MNZ-treated seedlings), it was found that the spreading group had higher ETU-related risk, despite lower chronic exposure levels. AOPP and ROM serum levels were higher in MNZ-exposed subjects compared with non-exposed controls, whereas BAP levels were significantly lower. Such results support an increase in the oxidative stress upon 8 h MNZ exposure at work. In particular, AOPP levels demonstrated a potential predictive role, as suggested by the contingency analysis results. Overall, this study, although conducted in a small group, confirms that ETU detection in pads, as well as in urine, might enable assessment of the risk associated with MNZ exposure in greenhouse workers. Additionally, the measurement of circulating oxidative stress biomarkers might help to stratify exposed workers based on their sensitivity to MNZ. Pivotally, the combination of both ETU measurement and biological monitoring might represent a novel valuable combined approach for risk assessment in farmhouse workers exposed to pesticides. In the future, these observations will help to implement effective preventive strategies in the workplace for workers at higher risk, including greenhouse farmers who are exposed to pesticides daily, as well as to clarify the occupational exposure levels to ETU.
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Affiliation(s)
- Chiara Costa
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy
| | - Michele Teodoro
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, 98125 Messina, Italy
| | - Federica Giambò
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, 98125 Messina, Italy
| | - Stefania Catania
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, 98125 Messina, Italy
| | - Silvia Vivarelli
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, 98125 Messina, Italy
| | - Concettina Fenga
- Department of Biomedical and Dental Sciences, Morphological and Functional Imaging, Section of Occupational Medicine, University of Messina, 98125 Messina, Italy
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