151
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Modeling the Fate and Transport of Malathion in the Pagsanjan-Lumban Basin, Philippines. WATER 2017. [DOI: 10.3390/w9070451] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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152
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Saeed MF, Shaheen M, Ahmad I, Zakir A, Nadeem M, Chishti AA, Shahid M, Bakhsh K, Damalas CA. Pesticide exposure in the local community of Vehari District in Pakistan: An assessment of knowledge and residues in human blood. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 587-588:137-144. [PMID: 28237471 DOI: 10.1016/j.scitotenv.2017.02.086] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/09/2017] [Accepted: 02/09/2017] [Indexed: 06/06/2023]
Abstract
The present study is based on cross-sectional data collected from rural and market areas of Vehari District in Pakistan to assess public awareness of pesticide risks and determine the levels of exposure to organochlorine pesticides (OCPs) in the local community. Blood samples were collected from 56 volunteer donors (VDs) including children, female workers, farm workers involved in pesticide business, farm workers involved in pesticide spraying activities, and people who were living away from agricultural fields. Blood analysis showed that VDs who were involved in spraying activities had significantly higher levels of OCP residues in their blood samples than VDs from the other groups, with mean concentrations of 1.13, 0.92, 0.68 and 1.96ngmL-1 for pp-DDT, aldrin, dieldrin, and endosulfan, respectively. However, VDs who were living away from agricultural fields had significantly lower levels of pesticide residues in their blood samples, with mean concentrations of 0.30, 0.19, 0.14 and 0.41ngmL-1 for pp-DDT, aldrin, dieldrin, and endosulfan, respectively. A survey of 179 volunteer respondents (VRs) showed that a significant proportion of the VRs had little knowledge of using the recommended amounts of pesticides (65.9%). Furthermore, the majority of the VRs was found using limited protective measures during pesticide use (62.6%) and was practising unsafe storage of pesticides (87.7%). In addition, most farm workers (88.8%) reported an increasing trend in pesticide use in their farms each year. Knowledge of pesticide risks on human health increased with formal education and training. Poor knowledge regarding pesticide risks and handling among inhabitants of Vehari District contribute to high exposure levels to OCPs, particularly among farm workers. Findings are useful for policy formulation aimed at reduction of pesticide exposure in Pakistan.
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Affiliation(s)
- Muhammad Farhan Saeed
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan.
| | - Mussarat Shaheen
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Iftikhar Ahmad
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Ali Zakir
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Muhammad Nadeem
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Arif Ali Chishti
- Dr. A. Q. Khan Institute of Biotechnology & Genetic Engineering, University of Karachi, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Khuda Bakhsh
- Department of Management Sciences, COMSATS Institute of Information Technology, Vehari, Pakistan
| | - Christos A Damalas
- Department of Agricultural Development, Democritus University of Thrace, GR-68200 Orestiada, Greece.
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153
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Chaves TVS, Islam MT, de Moraes MO, de Alencar MVOB, Gomes DCV, de Carvalho RM, Maluf SW, de Moura do Amaral FP, Paz MFCJ, Cerqueira GS, Rolim HML, de Castro E Sousa JM, de Carvalho Melo-Cavalcante AA, de Moraes MEA. Occupational and life-style factors-acquired mutagenicity in agric-workers of northeastern Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15454-15461. [PMID: 28510803 DOI: 10.1007/s11356-017-9150-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
Pesticides are a complex mixture of chemicals used to protect crops from a number of pests and diseases. They have been considered as potential mutagenic agents. This study aims at evaluation of the mutagenic effect of pesticide exposure to agricultural workers through chromosomal aberrations (CA) and micronucleus (MN) assay in peripheral blood lymphocytes and oral mucosal cells, respectively. The exposed group was consisted with 97 farmers, while the control (un-exposed) group consisted of 55. The results showed a significant (p < 0.05) increase in frequency of CA and MN in the exposed group. Both CA and MN profiles were linked to a significant (p < 0.05) co-relation with the confounding factors such as smoking habits, alcohol, vegetables, tea/coffee, vitamins, and sweetener consumptions. More cytogenetic events were denoted in smoking and alcohol consumption as well as non-personal protective equipment (non-PPE) and low/no vegetables user farmers. In conclusion, a deficiency of dietary and medicaments-derived antioxidants, while consumption of alcohol and tobacco, as well as effects of radiation, heavy metal poisoning (especially from sweeteners), and non-PPE using habits, may contribute cytogenetic damage to the workers.
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Affiliation(s)
| | - Muhammad Torequl Islam
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil.
- Department of Pharmacy, Southern University Bangladesh, Mehedigbag, Chittagong, 4000, Bangladesh.
| | | | | | | | | | - Sharbel Weider Maluf
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | | | | | - Gilberto Santos Cerqueira
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | | | - João Marcelo de Castro E Sousa
- Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Department of Biological Sciences, Federal University of Piauí, Picos, PI, 64.600-000, Brazil
| | - Ana Amélia de Carvalho Melo-Cavalcante
- Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
- Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
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154
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Toumi K, Joly L, Vleminckx C, Schiffers B. Risk Assessment of Florists Exposed to Pesticide Residues through Handling of Flowers and Preparing Bouquets. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:E526. [PMID: 28505067 PMCID: PMC5451977 DOI: 10.3390/ijerph14050526] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/05/2017] [Accepted: 05/10/2017] [Indexed: 11/16/2022]
Abstract
Flowers are frequently treated with pesticides and, as a result, florists handling daily a large number of flowers can be exposed to pesticide residues. A study was conducted among twenty volunteer florists located in Namur Province and in the Brussels Capital Region of Belgium in order to assess their potential dermal exposure to dislodgeable pesticide residues transferred from flowers to hands. Two pairs of cotton gloves were worn during two consecutive half days while handling flowers and preparing bouquets (from min 2 h to max 3 h/day). The residual pesticide deposits on the glove samples were extracted with a multi-residue Quick Easy Cheap Effective Rugged Safe (QuEChERS) method and analyzed by a combination of gas and liquid chromatography tandem mass spectrometry (GC-MS/MS and LC-MS/MS) by an accredited laboratory. A total of 111 active substances (mainly insecticides and fungicides) were detected, with an average of 37 active substances per sample and a total concentration per glove sample of 22.22 mg/kg. Several predictive levels of contamination were considered to assess the risk. The potential dermal exposures (PDE) of florists were estimated at the average, for different percentiles, and at the maximum concentration of residues in samples. At the PDE P90 and at the PDEMAX (or worst case) values, three and five active substances respectively exceed the Acceptable Operator Exposure Level (AOEL), indicating risk situations. For the systemic exposure (SE), one active substance (clofentezine) exceeds the AOEL at the P90 predictive level. In the worst case, SEMAX (at the maximum concentrations), four active substances (clofentezine, famoxadone, methiocarb, and pyridaben) exceed their respective AOEL values. Among the 14 most frequently detected active substances, two have SEMAX values exceeding the AOEL. Exposure could be particularly critical for clofentezine with an SEMAX value four times higher than the AOEL (393%). The exposure of florists appeared to be an example of a unique professional situation in which workers are exposed regularly to both a very high number of toxic chemicals and rather high concentration levels. Therefore the priority should be to raise the level of awareness among the florists who must change their habits and practices if they want to minimize their exposure.
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Affiliation(s)
- Khaoula Toumi
- Gembloux Agro-Bio Tech/ULg-Pesticide Science Laboratory, Passage des Déportés 2, 5030 Gembloux, Belgium.
| | - Laure Joly
- Operational Direction Food, Medecines and Consumer Safety, Institut Scientifique de Santé Publique, Rue Juliette Wytsman 14, 1050 Brussels, Belgium.
| | - Christiane Vleminckx
- Operational Direction Food, Medecines and Consumer Safety, Institut Scientifique de Santé Publique, Rue Juliette Wytsman 14, 1050 Brussels, Belgium.
| | - Bruno Schiffers
- Gembloux Agro-Bio Tech/ULg-Pesticide Science Laboratory, Passage des Déportés 2, 5030 Gembloux, Belgium.
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155
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WANDSCHEER ALANAC, MARCHESAN ENIO, TEDESCO SOLANGEB, FRESCURA VIVIANEDALSOUTO, SOARES CAMILLEF, LONDERO GUILHERMEP, TELÓ GUSTAVOM, HANSEL DÂMARISS. Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide. ACTA ACUST UNITED AC 2017; 89:1251-1258. [DOI: 10.1590/0001-3765201720150536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 12/22/2016] [Indexed: 11/21/2022]
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156
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Rapisarda V, Ledda C, Matera S, Fago L, Arrabito G, Falzone L, Marconi A, Libra M, Loreto C. Absence of t(14;18) chromosome translocation in agricultural workers after short-term exposure to pesticides. Mol Med Rep 2017; 15:3379-3382. [PMID: 28339074 DOI: 10.3892/mmr.2017.6385] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/07/2017] [Indexed: 11/05/2022] Open
Abstract
Exposure to pesticides represents a potential health risk for the general population and for agricultural workers in particular. Some researchers observed that occupational exposure to pesticides is associated with risk of non‑Hodgkin's lymphoma (NHL). The chromosomal translocation t(14;18)(q32;q21) is one of the most common chromosomal abnormalities in NHL. The aim of this study was to detect the effects of pesticides on t(14;18) chromosome translocation in agricultural workers after short-term exposure. Fifty-two workers occupationally exposed to pesticides (fungicides and insecticides) and 52 non-exposed were recruited. The farm workers were on average exposed to pesticides for ~3.7 h a day for 5 years. The frequency of BCL2-IGH t(14;18) translocation in workers occupationally exposed to pesticides was 10% (5 of 52) vs. 8% (4 of 52) in the control group. Overall, these data suggest that no significant association between occupational exposure to pesticides and an increased frequency of the chromosomal translocation BCL2-IGH t(14;18) in farmers was observed. However, further studies with a higher number of subjects exposed to pesticides are necessary to confirm this observation.
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Affiliation(s)
- Venerando Rapisarda
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Caterina Ledda
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Serena Matera
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lucrezia Fago
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Giorgio Arrabito
- Prevention and Safety in the Workplace Service, Provincial Health Agency of Ragusa, Ragusa, Italy
| | - Luca Falzone
- Section of General and Clinical Pathology and Oncology, Department of Biomedical and Biotechnology Sciences, University of Catania, Catania, Italy
| | - Andrea Marconi
- Section of Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Massimo Libra
- Section of General and Clinical Pathology and Oncology, Department of Biomedical and Biotechnology Sciences, University of Catania, Catania, Italy
| | - Carla Loreto
- Section of Human Anatomy and Histology, Department of Biomedical and Biotechnology Sciences, University of Catania, Catania, Italy
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157
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Tahirbegi IB, Ehgartner J, Sulzer P, Zieger S, Kasjanow A, Paradiso M, Strobl M, Bouwes D, Mayr T. Fast pesticide detection inside microfluidic device with integrated optical pH, oxygen sensors and algal fluorescence. Biosens Bioelectron 2017; 88:188-195. [DOI: 10.1016/j.bios.2016.08.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 12/13/2022]
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158
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Hodjat M, Baeeri M, Rezvanfar MA, Rahimifard M, Gholami M, Abdollahi M. On the mechanism of genotoxicity of ethephon on embryonic fibroblast cells. Toxicol Mech Methods 2017; 27:173-180. [DOI: 10.1080/15376516.2016.1273425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mahshid Hodjat
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Baeeri
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Rezvanfar
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahban Rahimifard
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Gholami
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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159
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Martínez-Valenzuela C, Waliszewski SM, Amador-Muñoz O, Meza E, Calderón-Segura ME, Zenteno E, Huichapan-Martínez J, Caba M, Félix-Gastélum R, Longoria-Espinoza R. Aerial pesticide application causes DNA damage in pilots from Sinaloa, Mexico. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:2412-2420. [PMID: 27815855 DOI: 10.1007/s11356-016-7974-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
The use of pesticides in agricultural production originates residues in the environment where they are applied. Pesticide aerial application is a frequent source of exposure to pesticides by persons dedicated to agricultural practices and those living in neighboring communities of sprayed fields. The aim of the study was to assess the genotoxic effects of pesticides in workers occupationally exposed to these chemicals during their aerial application to agricultural fields of Sinaloa, Mexico. The study involved 30 pilots of airplanes used to apply pesticides via aerial application and 30 unexposed controls. Damage was evaluated through the micronucleus assay and by other nuclear abnormalities in epithelial cells of oral mucosa. The highest frequency ratios (FR) equal to 269.5 corresponded to binucleated cells followed by 54.2, corresponding to cells with pyknotic nuclei, 45.2 of cells with chromatin condensation, 3.7 of cells with broken-egg, 3.6 of cells with micronucleus, and 2.0 of karyolytic cells. Age, worked time, smoking, and alcohol consumption did not have significant influence on nuclear abnormalities in the pilots studied. Pesticide exposure was the main factor for nuclear abnormality results and DNA damage. Marked genotoxic damage was developed even in younger pilots with 2 years of short working period, caused by their daily occupational exposure to pesticides.
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Affiliation(s)
- C Martínez-Valenzuela
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Los Mochis, Sinaloa, Mexico.
| | - S M Waliszewski
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - O Amador-Muñoz
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - E Meza
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - M E Calderón-Segura
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - E Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - J Huichapan-Martínez
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Los Mochis, Sinaloa, Mexico
| | - M Caba
- Centro de Investigaciones Biomédicas, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - R Félix-Gastélum
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Los Mochis, Sinaloa, Mexico
| | - R Longoria-Espinoza
- Instituto de Investigación en Ambiente y Salud, Universidad de Occidente, Los Mochis, Sinaloa, Mexico
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160
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Schwarzbacherová V, Wnuk M, Lewinska A, Potocki L, Zebrowski J, Koziorowski M, Holečková B, Šiviková K, Dianovský J. Evaluation of cytotoxic and genotoxic activity of fungicide formulation Tango ® Super in bovine lymphocytes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:255-263. [PMID: 27667677 DOI: 10.1016/j.envpol.2016.09.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 09/13/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
Tango® Super is a two-compound fungicide formulation widely employed in grain protection. However, details of Tango® Super effects on cell cultures have not been fully investigated. In this study, bovine lymphocytes were exposed to a concentration range 0.5; 1.5; 3; 6; and 15 μg mL-1 for 4 h to assess the cytotoxicity and genotoxicity of the fungicide. Our experiments revealed that this fungicide treatment reduced cell viability, decreased cell proliferation and provoked apoptotic cell death. Cell cycle analysis showed predominant accumulation of cells in the G0/G1 phase of the cell cycle. The fungicide was able to induce mitochondrial superoxide production accompanied by elevated levels of carbonylated proteins and changes in the lipid membrane composition. The fungicide did not induce micronuclei production, but stimulated both DNA double-strand breaks and the formation of p53 binding protein, which is accumulated during the DNA repair process at the site of double-strand breaks. Based on the obtained data we suppose that the fungicide-induced DNA damage is the result of oxidative stress, which may contribute to higher occurrence of apoptotic cell death. Because ergosterol biosynthesis-inhibiting fungicides are widely used in agriculture to ensure higher crop yields and may cause health impairment of animals and humans, there is a need for further testing to elucidate their potential genotoxic effects using in vivo and/or in vitro systems.
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Affiliation(s)
- Viera Schwarzbacherová
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic.
| | - Maciej Wnuk
- Department of Genetics, University of Rzeszow, Rejtana 16C, 35-959 Rzeszow, Poland
| | - Anna Lewinska
- Department of Biochemistry and Cell Biology, University of Rzeszow, Zelwerowicza 4, 35-601 Rzeszow, Poland
| | - Leszek Potocki
- Department of Genetics, University of Rzeszow, Rejtana 16C, 35-959 Rzeszow, Poland
| | - Jacek Zebrowski
- Department of Plant Physiology, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Marek Koziorowski
- Department of Animal Physiology and Reproduction, University of Rzeszow, Werynia 502, 36-100 Kolbuszowa, Poland
| | - Beáta Holečková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
| | - Katarína Šiviková
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
| | - Ján Dianovský
- Institute of Genetics, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovak Republic
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161
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Molecular Encapsulation of Herbicide Terbuthylazine in Native and Modifiedβ-Cyclodextrin. J CHEM-NY 2017. [DOI: 10.1155/2017/8120367] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The herbicide terbuthylazine (TBA) is widely used for preemergence or postemergence control of many grass and broadleaf weeds and has, besides other issues, a poor aqueous solubility profile that results in reduced bioavailability. Cyclodextrins and modified cyclodextrins were considered, among other substances, appropriate agents for improving pesticide water solubility. Therefore, the inclusion complex formation of terbuthylazine withβ-cyclodextrin (β-CD) and hydroxypropyl-β-cyclodextrin (HP-β-CD) was studied to attain its aqueous solubility enhancement. Their characterization was accomplished with different analytical techniques, namely, by UV-Vis, DSC, FTIR, and1H NMR. From the analysis of the complexation performance of the herbicide it was concluded that the interaction of terbuthylazine with CDs leads to the formation of inclusion complexes with a stoichiometry of 1 : 1. The association constants of the TBA/β-CD and TBA/HP-β-CD complexes were determined by UV. The mean values obtained for the stability constants are 460.4 ± 26.5 and 532.1 ± 27.6 to TBA/β-CD and TBA/HP-β-CD, respectively.1H NMR data corroborate the formation of the TBA/β-CD and TBA/HP-β-CD complexes synthesized by the kneading method. A formulation incorporating TBA cyclodextrin complexes might lead to an improvement in terbuthylazine bioavailability. The development of TBA-CD formulations may be interesting since it would enable, through their inclusion into the hydrophobic cavity of CDs, enhancement of solubility, bioavailability, and stability of the herbicide.
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162
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Khalaf A, Ibrahim M, Tohamy A, Allah AA, Zaki AR. Protective Effect of Vitazinc on Chlorsan Induced Oxidative Stress, Genotoxicity and Histopathological Changes in Testicular Tissues of Male Rats. INT J PHARMACOL 2016. [DOI: 10.3923/ijp.2017.22.32] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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163
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de Morais CR, Bonetti AM, Carvalho SM, de Rezende AAA, Araujo GR, Spanó MA. Assessment of the mutagenic, recombinogenic and carcinogenic potential of fipronil insecticide in somatic cells of Drosophila melanogaster. CHEMOSPHERE 2016; 165:342-351. [PMID: 27664524 DOI: 10.1016/j.chemosphere.2016.09.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 06/06/2023]
Abstract
Fipronil (FP) is an insecticide that belongs to the phenylpyrazole chemical family and is used to control pests by blocking GABA receptor at the entrance channel of the chlorine neurons. The aim of this study was to evaluate the mutagenic, recombinogenic and carcinogenic potential of FP. The mutagenic and recombinogenic effects were evaluated using the somatic mutation and recombination test (SMART) on wing cells of Drosophila melanogaster. Third instar larvae from standard (ST) and high bioactivation (HB) crosses were treated with different concentrations of FP (0.3, 0.7, 1.5 or 3.0 × 10-5 mM). The results showed mutagenic effects at all concentrations tested in the HB cross; and all concentrations tested in the ST cross, except at concentration of 0.7 × 10-5 mM. The carcinogenic effect of FP was assayed through the test for detection of epithelial tumor (warts) in D. melanogaster. Third instar larvae from wts/TM3 virgin females mated to mwh/mwh males were treated with different concentrations of FP (0.3, 0.7, 1.5 or 3.0 × 10-5 mM). All these concentrations induced a statistically significant increase in tumor frequency. In conclusion, FP proved to be mutagenic, recombinogenic and carcinogenic in somatic cells of D. melanogaster.
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Affiliation(s)
- Cássio Resende de Morais
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Ana Maria Bonetti
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Stephan Malfitano Carvalho
- Departament of Entomology, Federal University of Lavras, PO Box 3037, 37.200-000, Lavras, Minas Gerais, Brazil
| | - Alexandre Azenha Alves de Rezende
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Galber Rodrigues Araujo
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Mário Antônio Spanó
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil.
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164
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Yılmaz S, Çalbayram NÇ. Exposure to anesthetic gases among operating room personnel and risk of genotoxicity: A systematic review of the human biomonitoring studies. J Clin Anesth 2016; 35:326-331. [DOI: 10.1016/j.jclinane.2016.08.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/30/2016] [Accepted: 08/09/2016] [Indexed: 11/24/2022]
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165
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Kaur S, Mukhopadhyay CS, Sethi RS. Chronic exposure to indoxacarb and pulmonary expression of toll-like receptor-9 in mice. Vet World 2016; 9:1282-1286. [PMID: 27956782 PMCID: PMC5146311 DOI: 10.14202/vetworld.2016.1282-1286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 10/14/2016] [Indexed: 11/16/2022] Open
Abstract
AIM Chronic exposure to indoxacarb and pulmonary expression of toll-like receptor 9 (TLR-9) in mice. MATERIALS AND METHODS In this study, healthy male Swiss albino mice (n=30) aging 8-10 weeks were used to evaluate TLR-9 expression in lungs of mice following indoxacarb exposure with and without lipopolysaccharide (LPS). Indoxacarb was administered orally dissolved in groundnut oil at 4 and 2 mg/kg/day for 90 days. On day 91, five animals from each group were challenged with LPS/normal saline solution at 80 µg/animal. The lung tissues were processed for real time and immunohistochemical studies. RESULTS LPS resulted increase in fold change m-RNA expression level of TLR-9 as compare to control, while indoxacarb (4 mg/kg) alone and in combination with LPS resulted 16.21-fold change and 29.4-fold change increase in expression of TLR-9 m-RNA, respectively, as compared to control. Similarly, indoxacarb (2 mg/kg) alone or in combination with LPS also altered TLR-9 expression. Further at protein level control group showed minimal expression of TLR-9 in lungs as compare to other groups, however, LPS group showed intense positive staining in bronchial epithelium as well as in alveolar septal cells. Indoxacarb at both doses individually showed strong immuno-positive reaction as compare to control, however when combined with LPS resulted intense staining in airway epithelium as compare to control. CONCLUSION Chronic oral administration of indoxacarb for 90 days (4 and 2 mg/kg) alters expression of TLR-9 at m-RNA and protein level and co-exposure with LPS exhibited synergistic effect.
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Affiliation(s)
- Sandeep Kaur
- School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana - 141 004, Punjab, India
| | - C S Mukhopadhyay
- School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana - 141 004, Punjab, India
| | - R S Sethi
- School of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana - 141 004, Punjab, India
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166
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Kalita MK, Haloi K, Devi D. Larval Exposure to Chlorpyrifos Affects Nutritional Physiology and Induces Genotoxicity in Silkworm Philosamia ricini (Lepidoptera: Saturniidae). Front Physiol 2016; 7:535. [PMID: 27895594 PMCID: PMC5108804 DOI: 10.3389/fphys.2016.00535] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 10/26/2016] [Indexed: 11/13/2022] Open
Abstract
Chlorpyrifos is a most widely used organophosphate insecticide because of its cost effectiveness and degradable nature. However, this pesticide enters and contaminates the environment either by direct application, spray drifts or crop run off and shows adverse effect on the non-targeted organisms. Philosamia ricini (eri silkworm), one of the most exploited, domesticated and commercialized non mulberry silkworm is known for mass production of eri silk. The silkworm larvae get exposed to pesticide residues on the leaves of food plants. The present study investigates the effect of commercial formulation of chlorpyrifos (Pyrifos-20 EC) on eri silkworm. Initially the LC50 value of chlorpyrifos was determined at 24-96 h and further experiments were carried out with sub lethal concentrations of the chlorpyrifos after 24 h of exposure period. The potential toxicity of chlorpyrifos was evaluated as a fuction of metabolism and nutritional physiology in 3rd, 4th, and 5th instar larvae. Alteration in histoarchitecture of 5th instar eri silkworm gut exposed to sub lethal concentration of chlorpyrifos formulation was also studied. Chlorpyrifos induced genotoxicity in silkworm hemocytes was also investigated by single cell gel electrophoresis, micronuclei assay, and apoptosis assay. Herein, LC50 values of chlorpyrifos were calculated as 3.83, 3.35, 2.68, and 2.35 mg/L at 24, 48, 72, and 96h respectively. A significant decrease in trehalose activity along with digestive enzyme activity was observed in chlorpyrifos affected groups (P < 0.05). Further, genotoxicity study revealed higher tail percentage, tail length and tail moment of the damage DNA in chlorpyrifos exposed groups (P < 0.001). Moreover, at 2.0 mg/L concentration, ~10 fold increases in tail length was observed as compared to the control. Results showed activation of caspase activity following 24 h chlorpyrifos exposure (1.5 and 2.0 mg/L) in a dose-dependent manner. Moreover, in control group less number of apoptotic cells was detected, however in both chlorpyrifos exposed groups' numbers of apoptotic cells were statistically higher (P < 0.001). Taken together, this study provides evidence that chlorpyrifos pollution might have adverse effect on overall nutritional physiology and genotoxicity of eri silkworm that could lead to reduced survivability of this economically beneficial insect.
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Affiliation(s)
| | | | - Dipali Devi
- Seri-Biotech Unit, Life Science Division, Institute of Advanced Study in Science and TechnologyGuwahati, India
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167
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Drážovská M, Šiviková K, Holečková B, Dianovský J, Galdíková M, Schwarzbacherová V. Evaluation of potential genotoxic/cytotoxic effects induced by epoxiconazole and fenpropimorph-based fungicide in bovine lymphocytes in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2016; 51:769-776. [PMID: 27428828 DOI: 10.1080/03601234.2016.1198643] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Potential genotoxic/cytotoxic effects of the epoxiconazole/fenpropimorph-based fungicide were investigated using single cell gel electrophoresis and cytogenetic assays: chromosomal aberrations, sister chromatid exchanges, micronuclei and fluorescence in situ hybridization in cultured bovine lymphocytes. No statistically significant elevations of DNA damage and increases in cytogenetic endpoints were seen. However, evident cytotoxic effect presented as a decrease in mitotic and proliferation indices were recorded after exposure of bovine lymphocytes to the fungicide for 24 and 48 h at concentrations ranging from 3 to 15 µg mL(-1) (P < 0.05, P < 0.01, P < 0.001). Similarly, for 24 h an inhibition in the cytokinesis block proliferation index (CBPI) was obtained after exposure to the fungicide at concentrations ranging from 1.5 to 15 µg mL(-1) (P < 0.01, P < 0.001) in each donor.
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Affiliation(s)
- Monika Drážovská
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Katarína Šiviková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Beáta Holečková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Ján Dianovský
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Martina Galdíková
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
| | - Viera Schwarzbacherová
- a Department of Biology and Genetics , University of Veterinary Medicine and Pharmacy in Košice , Košice , Slovak Republic
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168
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Biosensors and their applications in detection of organophosphorus pesticides in the environment. Arch Toxicol 2016; 91:109-130. [DOI: 10.1007/s00204-016-1875-8] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 10/10/2016] [Indexed: 01/08/2023]
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169
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Franco FC, Alves AA, Godoy FR, Avelar JB, Rodrigues DD, Pedroso TMA, da Cruz AD, Nomura F, de Melo E Silva D. Evaluating genotoxic risks in Brazilian public health agents occupationally exposed to pesticides: a multi-biomarker approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:19723-19734. [PMID: 27406225 DOI: 10.1007/s11356-016-7179-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/04/2016] [Indexed: 06/06/2023]
Abstract
This is the first study demonstrating genotoxic effects and whole transcriptome analysis on community health agents (CHAs) occupationally exposed to pesticides in Central Brazil. For the transcriptome analysis, we found some genes related to Alzheimer's disease (LRP1), an insulin-like growth factor receptor (IGF2R), immunity genes (IGL family and IGJ), two genes related to inflammatory reaction (CXCL5 and CCL3), one gene related to maintenance of cellular morphology (NHS), one gene considered to be a strong apoptosis inductor (LGALS14), and several transcripts of the neuroblastoma breakpoint family (NBPF). Related to comet assay, we demonstrated a significant increase in DNA damage, measured by the olive tail moment (OTM), in the exposed group compared to the control group. Moreover, we also observed a statistically significant difference in OTM values depending on GSTM1 genotypes. Therefore, Brazilian epidemiological surveillance, an organization responsible for the assessment and management of health risks associated to pesticide exposure to CHA, needs to be more proactive and considers the implications of pesticide exposure for CHA procedures and processes.
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Affiliation(s)
- Fernanda Craveiro Franco
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Alessandro Arruda Alves
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Fernanda Ribeiro Godoy
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Juliana Boaventura Avelar
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Douglas Dantas Rodrigues
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Thays Millena Alves Pedroso
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Aparecido Divino da Cruz
- Núcleo de Pesquisas Replicon, Departamento de Biologia, Pontifícia Universidade Católica de Goiás, Goiânia, Goiás, Brazil
| | - Fausto Nomura
- Campus II, Itatiaia, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep 74001-970, Brazil
| | - Daniela de Melo E Silva
- Programa de Pós-Graduação em Genética e Biologia Molecular, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
- Campus II, Itatiaia, Departamento de Genética, Instituto de Ciências Biológicas 1, Universidade Federal de Goiás, Goiânia, Goiás, Cep 74001-970, Brazil.
- Programa de Pós-Graduação em Ciências Ambientais, Laboratório de Mutagênese e Radiobiologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
- Programa de Pós-Graduação em Biodiversidade Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
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170
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Nersesyan A, Fenech M, Bolognesi C, Mišík M, Setayesh T, Wultsch G, Bonassi S, Thomas P, Knasmüller S. Use of the lymphocyte cytokinesis-block micronucleus assay in occupational biomonitoring of genome damage caused by in vivo exposure to chemical genotoxins: Past, present and future. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:1-11. [DOI: 10.1016/j.mrrev.2016.05.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 04/30/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
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171
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da Silva J. DNA damage induced by occupational and environmental exposure to miscellaneous chemicals. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:170-182. [DOI: 10.1016/j.mrrev.2016.02.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 12/22/2015] [Accepted: 02/09/2016] [Indexed: 12/25/2022]
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172
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Bušić V, Katalinić M, Šinko G, Kovarik Z, Gašo-Sokač D. Pyridoxal oxime derivative potency to reactivate cholinesterases inhibited by organophosphorus compounds. Toxicol Lett 2016; 262:114-122. [PMID: 27693733 DOI: 10.1016/j.toxlet.2016.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 10/20/2022]
Abstract
Organophosphorus (OP) nerve agents (sarin, tabun VX and soman) inhibit the enzyme acetylcholinesterase (AChE, EC 3.1.1.7) by binding to its active site while preventing neurotransmission in the cholinergic synapses. The protection and treatment of this kind of poisoning are still a challenge as we are yet to discover an antidote that would be effective in all cases of poisoning. To aid the search for more efficient antidotes, we evaluated the ability of nine pyridoxal oxime derivatives, prepared by a novel synthetic pathway, to reactivate recombinant human AChE and the related purified human plasma butyrylcholinesterase (BChE, EC 3.1.1.8) inhibited by VX, tabun and paraoxon. Oximes are derivatives of vitamin B6 bearing a phenacyl moiety attached to the quaternary nitrogen atom and having various substituents on the phenyl ring. As the results have shown, the tested oximes were in general more efficient in the reactivation of OP-inhibited BChE than AChE. The highest observed rate was in the case of VX-inhibited BChE reactivation, where kobs was 0.0087min-1 and the reactivation maximum of 90% was achieved within 5h. The cholinesterases displayed a binding affinity for these derivatives in a μmolar range no matter the substituent on their rings which was in accordance with the molecular modelling results showing a similar binding pattern for all oximes within the active site of both AChE and BChE. Such a positioning reveals also that hydroxy and a metoxy substituents at the vicinity of the oxime moiety present a possible steric hindrance explaining the reactivation results.
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Affiliation(s)
- Valentina Bušić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology, Kuhačeva 20, HR-31000 Osijek, Croatia
| | - Maja Katalinić
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001 Zagreb, Croatia.
| | - Goran Šinko
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001 Zagreb, Croatia
| | - Zrinka Kovarik
- Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001 Zagreb, Croatia
| | - Dajana Gašo-Sokač
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology, Kuhačeva 20, HR-31000 Osijek, Croatia
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173
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Korrapati S, Pullela PK, Vijayalakshmi U. SPA enhanced FPIA‐based detection of pesticide residue with ppb/ppt level detection limit. IET Nanobiotechnol 2016; 11:24-31. [DOI: 10.1049/iet-nbt.2016.0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Swathi Korrapati
- Bigtec Pvt. Ltd.59th ‘C’ cross, 4th ‘M’ Block, RajajinagarBangalore 560 010India
| | - Phani Kumar Pullela
- Department of Chemistry CMR Institute of TechnologyITPL Main RoadBangalore 560 037KarnatakaIndia
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174
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Shi J, Xie C, Liu H, Krausz KW, Bewley CA, Zhang S, Tang L, Zhou Z, Gonzalez FJ. Metabolism and Bioactivation of Fluorochloridone, a Novel Selective Herbicide, in Vivo and in Vitro. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:9652-60. [PMID: 27443216 PMCID: PMC6169518 DOI: 10.1021/acs.est.6b02113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Fluorochloridone (FLC) is a herbicide used worldwide that is thought to be safe. However, due to its potential genotoxicity, cytotoxicity, and even systematic toxicity, there are increasing concerns about human exposure to this compound. Thus, the metabolism and bioactivation of FLC was investigated. After oral administration to mice, 27 metabolites were identified by ultrahigh performance liquid chromatography-electrospray ionization-quadrupole time-of-flight-mass spectrometry and with further structural identification by nuclear magnetic resonance spectroscopy. Hydroxylation and oxidative dechlorination were the major phase I pathways, while glutathione (GSH) and N-acetylcysteine conjugations were two major phase II pathways, indicating the formation of a reactive intermediate. In vitro microsomal and cytosolic studies revealed that a GSH conjugate (M13) was the predominant metabolite of FLC formed through a nucleophilic SN2 substitution of 3-Cl by GSH; this pathway is NADPH independent and accelerated by glutathione S-transferase (GST). Further, a kinetic study showed that M13 formation in both human liver microsomes and cytosols obeyed typical Michaelis-Menten kinetics. The maximum clearance (Vmax/Km) of GSH conjugation in human liver microsomes was approximately 5.5-fold higher than human liver cytosol, thus implying that microsomal GST was mainly responsible for M13 formation. These findings are important for understanding the potential hazard of human exposure to FLC.
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Affiliation(s)
- Jingmin Shi
- Pharmacology and Toxicology, Department/Center for Drug Safety Evaluation, Shanghai Institute for Food and Drug Control, Shanghai 201203, PR China
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Cen Xie
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Hongbing Liu
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Kristopher W. Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Carole A. Bewley
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Suhui Zhang
- Pharmacology and Toxicology, Department/Center for Drug Safety Evaluation, Shanghai Institute for Food and Drug Control, Shanghai 201203, PR China
| | - Liming Tang
- Pharmacology and Toxicology, Department/Center for Drug Safety Evaluation, Shanghai Institute for Food and Drug Control, Shanghai 201203, PR China
- Corresponding Authors: (F.J.G.)., (L.T.)
| | - Zhijun Zhou
- School of Public Health, Fudan University, Shanghai 200032, PR China
| | - Frank J. Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
- Corresponding Authors: (F.J.G.)., (L.T.)
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175
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Federico C, Palmieri C, Pappalardo AM, Ferrito V, Pappalardo M, Librando V, Saccone S. Mutagenic properties of linuron and chlorbromuron evaluated by means of cytogenetic biomarkers in mammalian cell lines. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:17018-17025. [PMID: 27206752 DOI: 10.1007/s11356-016-6867-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 05/09/2016] [Indexed: 06/05/2023]
Abstract
Agricultural practices are usually supported by several chemical substances, such as herbicides. Linuron and chlorbromuron are phenylurea herbicides largely used to protect crops from weeds, blocking photosynthesis by inhibition of the photosystem II complex. The former, also commercially known as lorox or afalon, is selectively used to protect bean and French bean plants, fennels, and celeriacs; the second, commercially known as maloran, is selectively used for carrots, peas, potatoes, soy sprouts, and sunflowers. Considering the widespread use of herbicides and, more generally, pesticides, it is important to clarify their involvement on human health, one of them concerning the possible direct or indirect effect on the genome of exposed populations. Here, we show that these herbicides are endowed by mutagenic properties, as demonstrated by an increased number of chromosomal aberrations (CAs) in two exposed Chinese hamster cell lines derived from ovary and epithelial liver, respectively. This was also confirmed by sister chromatid exchange (SCE) and micronucleus (MN) assays. Our present and previously obtained data clearly indicate that phenylurea herbicides must be used with great caution, especially for agricultural workers who use large amounts of herbicides during their work, and particular attention should be given to residues of these herbicides and their involvement in environmental pollution.
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Affiliation(s)
- Concetta Federico
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, University of Catania, Catania, Italy
| | - Cristina Palmieri
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, University of Catania, Catania, Italy
| | - Anna Maria Pappalardo
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, University of Catania, Catania, Italy
| | - Venera Ferrito
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, University of Catania, Catania, Italy
| | - Matteo Pappalardo
- Department of Chemical Sciences, University of Catania, Catania, Italy
| | - Vito Librando
- Department of Chemical Sciences, University of Catania, Catania, Italy
| | - Salvatore Saccone
- Department of Biological, Geological and Environmental Sciences, Section of Animal Biology, University of Catania, Catania, Italy.
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176
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Thuerig B, Ramseyer J, Hamburger M, Oberhänsli T, Potterat O, Schärer HJ, Tamm L. Efficacy of a Juncus effusus extract on grapevine and apple plants against Plasmopara viticola and Venturia inaequalis, and identification of the major active constituent. PEST MANAGEMENT SCIENCE 2016; 72:1718-1726. [PMID: 26616740 DOI: 10.1002/ps.4199] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND There is growing demand to replace chemical pesticides with alternatives owing to concerns related to impacts on human health and the environment. Plant-derived plant protection products could provide sustainable and environmentally friendly alternatives to chemical products. The aim of this study was to identify plant and fungal extracts with so far unknown activity against important plant pathogens by in vitro screening of a library of more than 3000 extracts. RESULTS Several plant extracts with promising in vitro fungicidal activity (MIC100 ≤ 50 µg mL(-1) ) towards one or several of the investigated pathogens (Venturia ineaqualis, Phytophthora infestans, Plasmopara viticola) were identified by the screening. One of the hits, an ethyl acetate extract of Juncus effusus L. medulla, was further investigated, and dehydroeffusol (DHEF) was identified as its main active constituent. On susceptible grapevine and apple seedlings, efficacies of up to 100% were reached with the extract (EC50 123 or 156 µg mL(-1) ) and with DHEF (EC50 18 or 21 µg mL(-1) ) against P. viticola and V. inaequalis respectively. CONCLUSIONS Our results demonstrate that plants can provide promising alternatives for integrated and organic farming. J. effusus shows high efficacy at low concentrations and, as an abundant perennial species, is an interesting candidate for the development of a novel plant protection product. © 2015 Society of Chemical Industry.
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Affiliation(s)
- Barbara Thuerig
- Research Institute of Organic Agriculture FiBL, Frick, Switzerland
| | - Justine Ramseyer
- Department of Pharmaceutical Biology, University of Basel, Basel, Switzerland
| | - Matthias Hamburger
- Department of Pharmaceutical Biology, University of Basel, Basel, Switzerland
| | | | - Olivier Potterat
- Department of Pharmaceutical Biology, University of Basel, Basel, Switzerland
| | | | - Lucius Tamm
- Research Institute of Organic Agriculture FiBL, Frick, Switzerland
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177
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Hayat S, Cheng Z, Ahmad H, Ali M, Chen X, Wang M. Garlic, from Remedy to Stimulant: Evaluation of Antifungal Potential Reveals Diversity in Phytoalexin Allicin Content among Garlic Cultivars; Allicin Containing Aqueous Garlic Extracts Trigger Antioxidants in Cucumber. FRONTIERS IN PLANT SCIENCE 2016; 7:1235. [PMID: 27610111 PMCID: PMC4996993 DOI: 10.3389/fpls.2016.01235] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 08/03/2016] [Indexed: 05/27/2023]
Abstract
Garlic has the charisma of a potent remedy and holds its repute of a therapeutic panacea since the dawn of civilization. An integrated approach was adopted to evaluate the genetic diversity among Chinese garlic cultivars for their antifungal potency as well as allicin content distribution and, furthermore; a bioassay was performed to study the bio-stimulation mechanism of aqueous garlic extracts (AGE) in the growth and physiology of cucumber (Cucumis sativus). Initially, 28 garlic cultivars were evaluated against four kinds of phytopathogenic fungi; Fusarium oxysporum, Botrytis cinerea, Verticillium dahliae and Phytophthora capsici, respectively. A capricious antifungal potential among the selected garlic cultivars was observed. HPLC fingerprinting and quantification confirmed diversity in allicin abundance among the selected cultivars. Cultivar G025, G064, and G074 had the highest allicin content of 3.98, 3.7, and 3.66 mg g(-1), respectively, whereas G110 was found to have lowest allicin content of 0.66 mg g(-1). Cluster analysis revealed three groups on the basis of antifungal activity and allicin content among the garlic cultivars. Cultivar G025, G2011-4, and G110 were further evaluated to authenticate the findings through different solvents and shelf life duration and G025 had the strongest antifungal activity in all conditions. minimum inhibitory concentration and minimum fungicidal concentration of Allicin aqueous standard (AAS) and AGE showed significant role of allicin as primary antifungal substance of AGE. Leaf disk bioassay against P. capsici and V. dahliae to comparatively study direct action of AGE and AAS during infection process employing eggplant and pepper leaves showed a significant reduction in infection percentage. To study the bioactivity of AGE, a bioassay was performed using cucumber seedlings and results revealed that AGE is biologically active inside cucumber seedlings and alters the defense mechanism of the plant probably activating reactive oxygen species at mild concentrations. However, at higher concentrations, it might cause lipid peroxidation and membrane damage which temper the growth of cucumber seedlings. At the outcome of the study, an argument is advanced that current research findings provide bases for cultivar selection in antifungal effectivity as well as genetic variability of the cultivars. Allicin containing AGE can be used in specialized horticultural situations such as plastic tunnel and organic farming as a bio-stimulant to enhance cucumber growth and attenuate fungal degradation of agricultural produce.
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Affiliation(s)
- Sikandar Hayat
- Department of Vegetable Science, College of Horticulture, Northwest A&F University, YanglingChina
| | - Zhihui Cheng
- Department of Vegetable Science, College of Horticulture, Northwest A&F University, YanglingChina
| | - Husain Ahmad
- Department of Vegetable Science, College of Horticulture, Northwest A&F University, YanglingChina
| | - Muhammad Ali
- Department of Vegetable Science, College of Horticulture, Northwest A&F University, YanglingChina
| | - Xuejin Chen
- School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, XinxiangChina
| | - Mengyi Wang
- Department of Vegetable Science, College of Horticulture, Northwest A&F University, YanglingChina
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178
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Sandeep K, Mukhopadhyay CS, Arora JS, Sethi RS. Indoxacarb interaction alters immunotoxic and genotoxic potential of endotoxin. JOURNAL OF PESTICIDE SCIENCE 2016; 41:65-70. [PMID: 30363127 PMCID: PMC6140663 DOI: 10.1584/jpestics.d16-012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/18/2016] [Indexed: 06/08/2023]
Abstract
Indoxacarb is commonly used to effectively control pests, cockroaches, termites, fleas, and houseflies. Although the toxicological profile of indoxacarb had already been well characterized, we examined the possible toxicological interaction with indoxacarb and endotoxin. Male Swiss albino mice aged 8-10 weeks were orally administered indoxacarb dissolved in groundnut oil at 4 mg/kg/day and 2 mg/kg/day for 90 days. On day 91, five animals from each group were challenged with lipopolysaccharides (LPS) at 80 µg/mouse, administered intranasally. Indoxacarb at 4 mg/kg significantly decreased Total leukocyte count, lymphocytopenia, and neutrophilia. Both doses of indoxacarb combined with LPS resulted in significant lymphocytopenia. Indoxacarb did not produce DNA damage in comet assay, but when combined with LPS, it resulted in a significant increase in tail length, tail moment, and olive moment. The data indicate that indoxacarb at 4 mg/kg administered orally for 90 days induced immune-response change. Further, both doses of indoxacarb, when combined with LPS, accelerate immunotoxicity and endotoxin-induced DNA damage.
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Affiliation(s)
- Kaur Sandeep
- Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | | | - Jaspreet S. Arora
- Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Ram S. Sethi
- Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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179
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Chakraborty C, Sharma AR, Sharma G, Lee SS. Zebrafish: A complete animal model to enumerate the nanoparticle toxicity. J Nanobiotechnology 2016; 14:65. [PMID: 27544212 PMCID: PMC4992559 DOI: 10.1186/s12951-016-0217-6] [Citation(s) in RCA: 178] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/05/2016] [Indexed: 01/18/2023] Open
Abstract
Presently, nanotechnology is a multi-trillion dollar business sector that covers a wide range of industries, such as medicine, electronics and chemistry. In the current era, the commercial transition of nanotechnology from research level to industrial level is stimulating the world’s total economic growth. However, commercialization of nanoparticles might offer possible risks once they are liberated in the environment. In recent years, the use of zebrafish (Danio rerio) as an established animal model system for nanoparticle toxicity assay is growing exponentially. In the current in-depth review, we discuss the recent research approaches employing adult zebrafish and their embryos for nanoparticle toxicity assessment. Different types of parameters are being discussed here which are used to evaluate nanoparticle toxicity such as hatching achievement rate, developmental malformation of organs, damage in gill and skin, abnormal behavior (movement impairment), immunotoxicity, genotoxicity or gene expression, neurotoxicity, endocrine system disruption, reproduction toxicity and finally mortality. Furthermore, we have also highlighted the toxic effect of different nanoparticles such as silver nanoparticle, gold nanoparticle, and metal oxide nanoparticles (TiO2, Al2O3, CuO, NiO and ZnO). At the end, future directions of zebrafish model and relevant assays to study nanoparticle toxicity have also been argued.
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Affiliation(s)
- Chiranjib Chakraborty
- Department of Bioinformatics, School of Computer and Information Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India.
| | - Ashish Ranjan Sharma
- Institute of Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Gangwon-do, 24252, Republic of Korea
| | - Garima Sharma
- Institute of Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Gangwon-do, 24252, Republic of Korea
| | - Sang-Soo Lee
- Institute of Skeletal Aging and Orthopedic Surgery, Hallym University-Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon, Gangwon-do, 24252, Republic of Korea.
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180
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Soares Neto JL, de Carli RF, Kotzal QSG, Latroni FB, Lehmann M, Dias JF, de Souza CT, Niekraszewicz LAB, da Silva FR, da Silva J, Dihl RR. Surface Water Impacted by Rural Activities Induces Genetic Toxicity Related to Recombinagenic Events in Vivo. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E827. [PMID: 27537904 PMCID: PMC4997513 DOI: 10.3390/ijerph13080827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/28/2016] [Accepted: 07/28/2016] [Indexed: 01/23/2023]
Abstract
This investigation assessed the interaction of surface water samples with DNA to quantitatively and qualitatively characterize their mutagenic and/or recombinagenic activity. Samples were obtained at three different sites along the Tocantins River (Tocantins State, Brazil). The area has withstood the impact mainly of rural activities, which release different chemical compounds in the environment. The Drosophila melanogaster Somatic Mutation and Recombination Test (SMART) was performed in standard (ST) and high bioactivation (HB) crosses. SMART is useful for the detection of mutational and recombinational events induced by genotoxins of direct and indirect action. Results demonstrated that samples collected in both seasons were able to induce increments on the mutant spot frequencies in the larvae of the HB cross. Genotoxicity was related to a massive recombinagenic activity. The positive responses ascribed to only the HB cross means that it is linked to pro-genotoxins requiring metabolic activation. The SMART wing test in Drosophila melanogaster was shown to be highly sensitive to detect genotoxic agents present in the aquatic environment impacted by agriculture.
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Affiliation(s)
- José Lopes Soares Neto
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Raíne Fogliati de Carli
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Queila Susana Gambim Kotzal
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Francine Bolico Latroni
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Mauricio Lehmann
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Johnny Ferraz Dias
- Ion Implantation Laboratory, Institute of Physics, UFRGS, Porto Alegre 91501-970, Brazil.
| | | | | | - Fernanda Rabaioli da Silva
- Ion Implantation Laboratory, Institute of Physics, UFRGS, Porto Alegre 91501-970, Brazil.
- UniLaSalle, Canoas 92010-000, Brazil.
- Laboratory of Genetic Toxicology, Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
| | - Rafael Rodrigues Dihl
- Laboratory of Genetic Toxicity (TOXIGEN), Post-Graduation Program in Molecular and Cellular Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas 92425-900, Brazil.
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181
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Bailey DC, Todt CE, Orfield SE, Denney RD, Snapp IB, Negga R, Montgomery KM, Bailey AC, Pressley AS, Traynor WL, Fitsanakis VA. Caenorhabditis elegans chronically exposed to a Mn/Zn ethylene-bis-dithiocarbamate fungicide show mitochondrial Complex I inhibition and increased reactive oxygen species. Neurotoxicology 2016; 56:170-179. [PMID: 27502893 DOI: 10.1016/j.neuro.2016.07.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 01/06/2023]
Abstract
Reports have linked human exposure to Mn/Zn ethylene-bis-dithiocarbamate (Mn/Zn-EBDC) fungicides with multiple pathologies, from dermatitis to central nervous system dysfunction. Although members of this family of agrochemicals have been available for over 50 years, their mechanism of toxicity in humans is still unclear. Since mitochondrial inhibition and oxidative stress are implicated in a wide variety of diseases, we hypothesized that Caenorhabditis elegans (C. elegans) exposed to a commercially-available formulation of an Mn/Zn-EBDC-containing fungicide (Manzate; MZ) would also show these endpoints. Thus, worms were treated chronically (24h) with various MZ concentrations and assayed for reduced mitochondrial function and increased levels of reactive oxygen species (ROS). Oxygen consumption studies suggested Complex I inhibition in all treatment groups compared to controls (**p<0.01). In order to verify these findings, assays specific for Complex II or Complex IV activity were also completed. Data analysis from these studies indicated that neither complex was adversely affected by MZ treatment. Additional data from ATP assays indicated a statistically significant decrease (***p<0.001) in ATP levels in all treatment groups when compared to control worms. Further studies were completed to determine if exposure of C. elegans to MZ also resulted in increased ROS concentrations. Studies demonstrated that hydrogen peroxide, but not superoxide or hydroxyl radical, levels were statistically significantly increased (*p<0.05). Since hydrogen peroxide is known to up-regulate glutathione-S-transferase (GST), we used a GST:green fluorescent protein transgenic worm strain to test this hypothesis. Results from these studies indicated a statistically significant increase (***p<0.001) in green pixel number following MZ exposure. Taken together, these data indicate that C. elegans treated with MZ concentrations to which humans are exposed show mitochondrial Complex I inhibition with concomitant hydrogen peroxide production. Since these mechanisms are associated with numerous human diseases, we suggest further studies to determine if MZ exposure induces similar toxic mechanisms in mammals.
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Affiliation(s)
- Denise C Bailey
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Callie E Todt
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Sarah E Orfield
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Rachel D Denney
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Isaac B Snapp
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Rekek Negga
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Kara M Montgomery
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Andrew C Bailey
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Aireal S Pressley
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Wendy L Traynor
- King University, Department of Mathematics and Physics, 1350 King College Road, Bristol, TN 37620, USA.
| | - Vanessa A Fitsanakis
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
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182
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Sequestration of agrochemicals from aqueous media using cross-linked chitosan-based sorbents. ADSORPTION 2016. [DOI: 10.1007/s10450-016-9796-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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183
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The use of the lymphocyte cytokinesis-block micronucleus assay for monitoring pesticide-exposed populations. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:183-203. [PMID: 27894686 DOI: 10.1016/j.mrrev.2016.04.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 04/21/2016] [Accepted: 04/22/2016] [Indexed: 11/22/2022]
Abstract
Pesticides are widely used around the world, and hundreds of millions of people are exposed annually in occupational and environmental settings. Numerous studies have demonstrated relationships between pesticide exposure and increased risk of cancers, neurodegenerative and neurodevelopmental disorders, respiratory diseases and diabetes. Assessment of genotoxicity of pesticides and biomonitoring their effect in exposed populations is critical for a better regulation and protection, but it can be complicated because pesticides are often used as complex mixtures. The cytokinesis-block micronucleus assay in human lymphocytes (L-CBMN) is a validated method of assessment of DNA damage induced by clastogenic and aneuploidogenic mechanisms. The goal of this review is to provide an updated summary of publications on biomonitoring studies using this assay in people exposed to pesticides in different settings, and to identify gaps in knowledge, and future directions. A literature search was conducted through MedLine/PubMed and TOXLINE electronic databases up to December 2015. A total of 55 full-text articles, related to 49 studies, excluding reviews, were selected for in depth analysis, divided by the settings where exposures occurred, such as chemical plant workers, pesticide sprayers, floriculturists, agricultural workers and non-occupationally exposed groups. Majority of studies (36 out of 49) reported positive findings with L-CBMN assay. However, most of the studies of professional applicators that used single pesticide or few compounds in the framework of specific programs did not show significant increases in MN frequency. A decreased level of pesticide-induced genotoxicity was associated with the proper use of personal protection. In contrast, subjects working in greenhouses or during intensive spraying season and having acute exposure, showed consistent increases in MN frequency. Overall, this analysis confirmed that L-CBMN is an excellent tool for pesticide biomonitoring, and can validate the effects of educational and intervention programs on reducing exposure and genetic damage.
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184
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Alves JS, da Silva FR, da Silva GF, Salvador M, Kvitko K, Rohr P, dos Santos CEI, Dias JF, Henriques JAP, da Silva J. Investigation of potential biomarkers for the early diagnosis of cellular stability after the exposure of agricultural workers to pesticides. AN ACAD BRAS CIENC 2016; 88:349-60. [PMID: 26839999 DOI: 10.1590/0001-3765201520150181] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 07/14/2015] [Indexed: 12/15/2022] Open
Abstract
Agricultural workers involved in the harvest of tobacco crops are regularly exposed to large quantities of pesticides. In order to determine how this exposure to pesticides induces genetic alterations in these workers, blood samples were obtained from 77 exposed individuals, as well as from 60 unexposed subjects. DNA damage was analyzed by the Comet assay and by the micronucleus (MN) test. The antioxidant profile was evaluated by activity of superoxide dismutase (SOD), and the polymorphism of gene PON1 was used as a susceptibility biomarker. The content of inorganic elements in the blood samples was determined by PIXE analysis. Our results demonstrated that the damage frequency, damage index, the MN frequency, and the SOD activity were significantly elevated in the exposed relative to the unexposed group. A modulation of the MN results for the PON1 gene was observed in the exposed group. The concentrations of inorganic elements in the exposed group were higher compared to those of the unexposed group. In this study, we observed that genetic damage, and change in oxidative balance were induced by the exposure of workers to complex mixtures of pesticides in the presence of inorganic compounds, whereby an influence of the genotype was evident.
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Affiliation(s)
- Jodel S Alves
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | | | - Gabrieli F da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - Mirian Salvador
- Instituto de Biotecnologia, Universidade de Caxias do Sul, Caxias do Sul, RS, Brazil
| | - Kátia Kvitko
- Programa de Pós-Graduação em Genética e Biologia Molecular, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paula Rohr
- Laboratório de Biologia Celular e Molecular, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | | | - Johnny F Dias
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - João A P Henriques
- Instituto de Biotecnologia, Universidade de Caxias do Sul, Caxias do Sul, RS, Brazil
| | - Juliana da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana do Brasil, Canoas, RS, Brazil
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185
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Abdul Hamid Z, Mohd Zulkifly MF, Hamid A, Lubis SH, Mohammad N, Ishak I, Mohd Saat NZ, Othman HF, Ghazali AR, Mohd Rafaai MJ, Mohd Noor MR, Rajab NF. The association of nuclear abnormalities in exfoliated buccal epithelial cells with the health status of different agricultural activities farmers in Peninsular Malaysia. Genes Environ 2016; 38:7. [PMID: 27350827 PMCID: PMC4918015 DOI: 10.1186/s41021-016-0032-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 02/03/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pesticide exposure possesses risk of genotoxicity to humans, particularly farmers. Despite accumulating evidences linking genotoxicity to pesticide exposure, epidemiological studies to address pesticide toxicity in occupationally exposed farmers in Malaysia remain underreported. Thus, this study was aimed to determine the presence of nuclear abnormalities through the assessment of micronucleus (MN) and binucleus (BNu) frequencies in exfoliated buccal epithelial cells from farmers who were exposed to pesticides. A cross-sectional study of farmers among different agricultural activities farmers in Bachok and Pasir Puteh, Kelantan, North East of Peninsular Malaysia was done to evaluate the presence of nuclear abnormalities and its correlation with their health status and farming activities. RESULTS Analysis of buccal cells revealed that the frequency of MN was significantly higher (p < 0.05) in farmers as compared to controls. In contrast, no significant difference (p > 0.05) was observed for BNu frequency in between groups. Correlation analysis showed that apart from a significant (p < 0.05) and positive correlation between the duration of fertilizers exposure and frequencies of MN (r = 0.42, P = 0.001) and BNu (r = 0.37, P = 0.02), no other correlation of various confounding factors on the formation of MN and BNu were observed. CONCLUSION In conclusion, pesticide and fertilizers exposure may contribute to the promotion of nuclear anomalies among Malaysian farmers who are engaged in mixed plantation activities. Further assessment of larger populations is important to address and overcome the potential risk of pesticide-induced genotoxicity.
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Affiliation(s)
- Zariyantey Abdul Hamid
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Mohd Faizal Mohd Zulkifly
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
- />Center for Neuroscience Services and Research (P3Neuro), Universiti Sains Malaysia, 16150 Kubang Kerian, Kota Baru, Kelantan Malaysia
| | - Asmah Hamid
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Syarif Husin Lubis
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Nihayah Mohammad
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Ismarulyusda Ishak
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Nur Zakiah Mohd Saat
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Hidayatul Fathi Othman
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Ahmad Rohi Ghazali
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Mohd Jamil Mohd Rafaai
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
| | - Mohamad Roff Mohd Noor
- />Horticulture Research Centre, MARDI, Persiaran MARDI-UPM, Serdang, 43400 Selangor Malaysia
| | - Nor Fadilah Rajab
- />Biomedical Science Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM,), Jalan Raja Muda Abdul Aziz, Kuala Lumpur, 50300 Malaysia
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186
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Bianchi J, Fernandes TCC, Marin-Morales MA. Induction of mitotic and chromosomal abnormalities on Allium cepa cells by pesticides imidacloprid and sulfentrazone and the mixture of them. CHEMOSPHERE 2016; 144:475-483. [PMID: 26386773 DOI: 10.1016/j.chemosphere.2015.09.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/18/2015] [Accepted: 09/06/2015] [Indexed: 06/05/2023]
Abstract
To evaluate the cytotoxic and genotoxic effects of low concentrations of pesticides in non-target organisms, seeds of Allium cepa were exposed for 24 h to the imidacloprid insecticide, sulfentrazone herbicide and to the mixture of them, followed by recovery periods of 48 and 72 h. Imidacloprid results indicated an indirect genotoxic effect by inducing different types of chromosome aberration (CA), mainly bridges and chromosomal adherences. Cells with micronucleus (MN) were not significant in the analyzed meristems. Moreover, the 72-h recovery tests indicated that the two lower concentrations of the insecticide (0.036 and 0.36 g L(-1)) had their genotoxic effects minimized after discontinuation of treatment, differently to the observed for the field concentration (3.6 g L(-1)). Sulfentrazone herbicide at field concentration (6 g L(-1)) caused cytotoxic effects by inducing nuclear fragmentation and inhibition of cell division. The other concentrations (0.06, 0.6 and 1.2 g L(-1)) indicated genotoxic effects for this herbicide. The concentration of 0.06 g L(-1) induced persistent effects that could be visualized both by the induction of CA in the recovery times as by the presence of MN in meristematic and F1 cells. The induction of MN by this lowest concentration was associated with the great amount of breakage, losses and chromosomal bridges. The mixture of pesticides induced genotoxic and cytotoxic effects, by reducing the MI of the cells. The chromosomal damage induced by the mixture of pesticides was not persistent to the cells, since such damage was minimized 72 h after the interruption of the exposure.
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Affiliation(s)
- Jaqueline Bianchi
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, Brazil.
| | | | - Maria Aparecida Marin-Morales
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, Brazil.
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187
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Soloneski S, Nikoloff N, Larramendy ML. Analysis of possible genotoxicity of the herbicide flurochloridone and its commercial formulations: Endo III and Fpg alkaline comet assays in Chinese hamster ovary (CHO-K1) cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 797:46-52. [DOI: 10.1016/j.mrgentox.2016.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/22/2016] [Accepted: 01/25/2016] [Indexed: 11/27/2022]
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188
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Vieira CED, Costa PG, Lunardelli B, de Oliveira LF, Cabrera LDC, Risso WE, Primel EG, Meletti PC, Fillmann G, Martinez CBDR. Multiple biomarker responses in Prochilodus lineatus subjected to short-term in situ exposure to streams from agricultural areas in Southern Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 542:44-56. [PMID: 26519566 DOI: 10.1016/j.scitotenv.2015.10.071] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 10/01/2015] [Accepted: 10/14/2015] [Indexed: 06/05/2023]
Abstract
In order to assess the quality of streams susceptible to contamination by pesticides we apply biochemical and genotoxic biomarkers in the Neotropical fish Prochilodus lineatus submitted to in situ tests. Fish were caged, for 96 h, in two streams located in areas with intensive use of pesticides, the Apertados (AP) and the Jacutinga (JC), and in a small stream (Godoy stream — GD) found inside a forest fragment adjacent to a State Park. Biochemical parameters, such as biotransformation enzymes 7-ethoxyresorufin-O-deethylase (EROD) and glutathione-S-transferase (GST), non-protein thiols (NPSH), lipoperoxidation (LPO), protein carbonylation (PCO) and acetylcholinesterase (AChE) were evaluated in various fish organs, as well as genotoxic biomarkers (damage to DNA and occurrence of micronuclei and erythrocyte nuclear abnormalities). Samples of water and sediment were collected for analysis of metals (Cu, Cr, Pb, Ni, Mn, Cd and Zn), organochloride pesticides, and triazine and glyphosate herbicides. We observed an increase in liver GST activity in fish at AP and gill GST activity in fish at JC. An increase in liver LPO was also observed in fish exposed to AP and JC. The same animals also exhibited increased DNA damage and erythrocyte nuclear abnormalities (ENAs) compared to the fish kept in GD. A number of compounds showed concentrations higher than the permitted levels, in particular, dichlorodiphenyltrichloroethane (DDT), its metabolites dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane (DDD), hexachlorocyclohexanes (HCH), heptachloride, diclofluanid and aldrins. These pesticides were detected at higher concentrations in water and sediment samples from AP, followed by JC and GD. The Integrated Biomarker Response Index (IBR) indicated that AP and JC (AP: 21.7 > JC: 18.5 > GD: 12.6) have the worst environmental quality. Integrated biomarker analysis revealed that the alterations observed related well with the levels of environmental contaminants, demonstrating the effectiveness of this biomonitoring approach.
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Affiliation(s)
- Carlos Eduardo Delfino Vieira
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Patrícia Gomes Costa
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia - Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Bruna Lunardelli
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Luciana Fernandes de Oliveira
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Liziara da Costa Cabrera
- Laboratório de Análise de Compostos Orgânicos e Metais - Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Wagner Ezequiel Risso
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Ednei Gilberto Primel
- Laboratório de Análise de Compostos Orgânicos e Metais - Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Paulo César Meletti
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil
| | - Gilberto Fillmann
- Laboratório de Microcontaminantes Orgânicos e Ecotoxicologia - Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Claudia Bueno dos Reis Martinez
- Laboratório de Ecofisiologia Animal - Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina, Paraná, Brazil.
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189
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Peteffi GP, Antunes MV, Carrer C, Valandro ET, Santos S, Glaeser J, Mattos L, da Silva LB, Linden R. Environmental and biological monitoring of occupational formaldehyde exposure resulting from the use of products for hair straightening. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:908-917. [PMID: 26351198 DOI: 10.1007/s11356-015-5343-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/31/2015] [Indexed: 06/05/2023]
Abstract
The evaluation of formaldehyde (FD) exposure in beauty salons, due to the use of hair straightening products, and its relation with genotoxicity biomarkers was performed in this study. Regardless of official recommendations, the inappropriate use of homemade hair creams has became a popular practice in Brazil, and high formaldehyde content in the "progressive straightening" creams can contain mutagens that could increase the incidence of neoplasia in those people who use them. Damage to DNA was assessed by conducting a micronuclei test (MNT) on buccal cells and the comet assay on heparinized venous blood samples. A total of 50 volunteers were recruited at six different beauty salons (labeled A to F). At two salons that used products that did not contain FD (salons D and E), environmental FD concentrations were 0.04 and 0.02 ppm. In contrast, the products used at salons A, B, C, and F contained 5.7, 2.61, 5.9, and 5.79% of FD, and these salons had environmental FD concentrations of 0.07, 0.14, 0.16, and 0.14 ppm, respectively. Comparison of the beauty salon workers from each of the six beauty salons revealed significant differences in urinary formic acid (FA) concentration before exposure (p = 0.016), urinary FA after exposure (p = 0.004), variation in FA concentration before and after exposure (p = 0.018), environmental FD concentration (p < 0.001), cytogenetic damage detected by the comet assay according to both damage index (p < 0.001) and frequency of damage (p < 0.001), and for karyorrhexis only according to the MNT (p = 0.001).
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Affiliation(s)
- Giovana Piva Peteffi
- Laboratório de Análises Toxicológicas, Universidade Feevale, ERS 239, 2755, Vila Nova, Novo Hamburgo, 93352-000, Brazil.
| | - Marina Venzon Antunes
- Laboratório de Análises Toxicológicas, Universidade Feevale, ERS 239, 2755, Vila Nova, Novo Hamburgo, 93352-000, Brazil
| | - Caroline Carrer
- Laboratório de Análises Toxicológicas, Universidade Feevale, ERS 239, 2755, Vila Nova, Novo Hamburgo, 93352-000, Brazil
| | - Eduarda Trevizani Valandro
- Laboratório de Análises Toxicológicas, Universidade Feevale, ERS 239, 2755, Vila Nova, Novo Hamburgo, 93352-000, Brazil
| | - Sílvia Santos
- Curso de Enfermagem, Faculdades Integradas de Taquara, Av. Oscar Martins Rangel, 4500 (ERS 115), Taquara, RS, Brazil
| | - Jéssica Glaeser
- Laboratório de Genética e Biologia Molecular, Universidade Feevale, ERS 239, 2755, Novo Hamburgo, 93352-000, Brazil
| | - Larissa Mattos
- Laboratório de Genética e Biologia Molecular, Universidade Feevale, ERS 239, 2755, Novo Hamburgo, 93352-000, Brazil
| | - Luciano Basso da Silva
- Laboratório de Genética e Biologia Molecular, Universidade Feevale, ERS 239, 2755, Novo Hamburgo, 93352-000, Brazil
| | - Rafael Linden
- Laboratório de Análises Toxicológicas, Universidade Feevale, ERS 239, 2755, Vila Nova, Novo Hamburgo, 93352-000, Brazil
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190
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What the Erythrocytic Nuclear Alteration Frequencies Could Tell Us about Genotoxicity and Macrophage Iron Storage? PLoS One 2015; 10:e0143029. [PMID: 26619141 PMCID: PMC4664483 DOI: 10.1371/journal.pone.0143029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/29/2015] [Indexed: 11/19/2022] Open
Abstract
Erythrocytic nuclear alterations have been considered as an indicative of organism’s exposure to genotoxic agents. Due to their close relationship among their frequencies and DNA damages, they are considered excellent markers of exposure in eukaryotes. However, poor data has been found in literature concerning their genesis, differential occurrence and their life span. In this study, we use markers of cell viability; genotoxicity and cellular turn over in order to shed light to these events. Tilapia and their blood were exposed to cadmium in acute exposure and in vitro assays. They were analyzed using flow cytometry for oxidative stress and membrane disruption, optical microscopy for erythrocytic nuclear alteration, graphite furnace atomic absorption spectrometry for cadmium content in aquaria water, blood and cytochemical and analytical electron microscopy techniques for the hemocateretic aspects. The results showed a close relationship among the total nuclear alterations and cadmium content in the total blood and melanomacrophage centres area, mismatching reactive oxygen species and membrane damages. Moreover, nuclear alterations frequencies (vacuolated, condensed and blebbed) showed to be associated to cadmium exposure whereas others (lobed and bud) were associated to depuration period. Decrease on nuclear alterations frequencies was also associated with hemosiderin increase inside spleen and head kidney macrophages mainly during depurative processes. These data disclosure in temporal fashion the main processes that drive the nuclear alterations frequencies and their relationship with some cellular and systemic biomarkers.
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191
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Gómez-Martín A, Hernández AF, Martínez-González LJ, González-Alzaga B, Rodríguez-Barranco M, López-Flores I, Aguilar-Garduno C, Lacasana M. Polymorphisms of pesticide-metabolizing genes in children living in intensive farming communities. CHEMOSPHERE 2015; 139:534-540. [PMID: 26318115 DOI: 10.1016/j.chemosphere.2015.07.079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 06/04/2023]
Abstract
Polymorphisms in genes encoding xenobiotic-metabolizing enzymes (XME) are important parameters accounting for the wide inter-individual variability to environmental exposures. Paraoxonase-1 (PON1), butyrylcholinesterase (BChE) and Cytochrome-P450 constitute major classes of XME involved in the detoxification of pesticide chemicals, in particular organophosphates. This study explored the allelic frequency, linkage disequilibrium and haplotype analysis of ten common polymorphic variants of seven key genes involved in organophosphate metabolism (BCHE-K, BCHE-A, PON1 Q192R, PON1 L55M, PON1 -108C/T, CYP2C19 G681A, CYP2D6 G1846A, CYP3AP1 -44G/A, GSTM1∗0 and GSTT1∗0) in a children population living near an intensive agriculture area in Spain. It was hypothesized that individuals with unfavorable combinations of gene variants will be more susceptible to adverse effects from organophosphate exposure. Genomic DNA from 496 healthy children was isolated and amplified by PCR. Hydrolysis probes were used for the detection of eight specific SNPs and two copy number variants (CNVs) by using TaqMan® Assay-based real-time PCR. Frequencies of SNPs and CNVs in the target genes were in Hardy-Weinberg equilibrium and broadly consistent with European populations. Linkage disequilibrium was found between the three PON1 genetic polymorphisms studied and between BCHE-K and BCHE-A. The adverse genotype combination (unusual BCHE variants, PON1 55MM/-108TT and null genotype for both GSTM1 and GSTT1) potentially conferring a greater genetic risk from exposure to organophosphates was observed in 0.2% of our study population. This information allows broadening our knowledge about differential susceptibility toward environmental toxicants and may be helpful for further research to understand the inter-individual toxicokinetic variability in response to organophosphate pesticides exposure.
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Affiliation(s)
- Antonio Gómez-Martín
- Department of Legal Medicine and Toxicology, University of Granada School of Medicine, Granada, Spain; Center GENYO (Pfizer-University of Granada-Andalusian Government Center for Genomics and Oncological Research), Granada, Spain
| | - Antonio F Hernández
- Department of Legal Medicine and Toxicology, University of Granada School of Medicine, Granada, Spain.
| | - Luis Javier Martínez-González
- Center GENYO (Pfizer-University of Granada-Andalusian Government Center for Genomics and Oncological Research), Granada, Spain
| | - Beatriz González-Alzaga
- Andalusian School of Public Health (EASP), Granada, Spain; Institute of Biosanitary Research (ibs.GRANADA), University Hospitals/University of Granada, Granada, Spain
| | - Miguel Rodríguez-Barranco
- Andalusian School of Public Health (EASP), Granada, Spain; Institute of Biosanitary Research (ibs.GRANADA), University Hospitals/University of Granada, Granada, Spain
| | | | | | - Marina Lacasana
- Andalusian School of Public Health (EASP), Granada, Spain; Institute of Biosanitary Research (ibs.GRANADA), University Hospitals/University of Granada, Granada, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
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192
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Srivastava S, Ghorpade R, Sathe M. Development of Immunochromatographic Assay for Identification of Organophosphate Pesticides in Environmental Samples. J Immunoassay Immunochem 2015; 37:167-88. [PMID: 26516678 DOI: 10.1080/15321819.2015.1106948] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Microtiter plate enzyme linked immunoassay (ELISA) experiments in competitive format were performed utilizing polyclonal antibody for establishing a detection system for organophosphate pesticides. IC50 value of and limit of detection (LOD) value was determined by standard inhibition curve and value obtained were 0.05 μgmL(-1) and 0.001 μgmL(-1), respectively. Specificity of antibody was investigated with different organophosphate pesticides. Immunochromatographic assay (ICA) experiments were also designed in competitive format by making use of immunochromatographic strip which was assembly of three main components: conjugate pad, membrane and adsorbent pad. Membrane was coated with hapten-OVA conjugate (test line) and antirabbit IgG (control line). ICA experiments were performed by employing gold-labeled antibody as a detector reagent which was applied over conjugate pad. Visual detection limit obtained from ICA was 0.5 μgmL(-1). Major advantage of strip assay was rapid result, i.e., less than 10 min. which makes it suitable for onsite applications.
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Affiliation(s)
- Shruti Srivastava
- a Discovery Centre, Defence Research R & D Establishment , Gwalior , India
| | - Ramrao Ghorpade
- a Discovery Centre, Defence Research R & D Establishment , Gwalior , India
| | - Manisha Sathe
- a Discovery Centre, Defence Research R & D Establishment , Gwalior , India
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193
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Bianchi J, Cabral-de-Mello DC, Marin-Morales MA. Toxicogenetic effects of low concentrations of the pesticides imidacloprid and sulfentrazone individually and in combination in in vitro tests with HepG2 cells and Salmonella typhimurium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 120:174-183. [PMID: 26074310 DOI: 10.1016/j.ecoenv.2015.05.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/22/2015] [Accepted: 05/26/2015] [Indexed: 06/04/2023]
Abstract
The insecticide imidacloprid and the herbicide sulfentrazone are two different classes of pesticides that are used for pest control in sugarcane agriculture. To evaluate the genotoxic potential of low concentrations of these two pesticides alone and in mixture, the comet assay and the micronucleus (MN) test employing fluorescence in situ hybridization (FISH) with a centromeric probe were applied in human hepatoma cell lines (HepG2), in a 24-h assay. Mutagenicity was assessed by Salmonella/microsome assay with TA98 and TA100 strains in the absence and presence of an exogenous metabolizing system (S9). The results showed significant inductions of MN in HepG2 cells by both pesticides, for all the tested concentrations. As evidenced in the comet assay, only the imidacloprid presented significant responses. When the two pesticides were associated, a significant induction of damage was observed in the HepG2 cells by the comet assay, but not by the MN test. Moreover, the MN induced by the mixtures of the pesticides appeared at lower levels than those induced by sulfentrazone and imidacloprid when tested alone. According to the FISH results, the damage induced by imidacloprid in the HepG2 cells resulted from a clastogenic action of this insecticide (76.6% of the MN did not present a centromeric signal). For the herbicide sulfentrazone and for the mixture of the pesticides, a similar frequency of MN with and without the presence of the centromeric signal (herbicide: 52.45% of the MN without centromeric signal and 47.54% of the MN with centromeric signal; mixture: 48.71% of the MN without centromeric signal and 51.42% of the MN with centromeric signal) was verified. Based on these results, it was concluded that each one of the pesticides evaluated interacts with the DNA of HepG2 cells and causes irreparable alterations in the cells. However, the combination of the pesticides showed an antagonistic effect on the cells and the damage induced was milder and not persistent in HepG2 cells. The results obtained by the Ames test did not point out significant results.
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Affiliation(s)
- Jaqueline Bianchi
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, São Paulo CEP 13506-900, Brazil
| | - Diogo Cavalcanti Cabral-de-Mello
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, São Paulo CEP 13506-900, Brazil
| | - Maria Aparecida Marin-Morales
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, São Paulo CEP 13506-900, Brazil.
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194
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Lebailly P, Mirey G, Herin F, Lecluse Y, Salles B, Boutet-Robinet E. DNA damage in B and T lymphocytes of farmers during one pesticide spraying season. Int Arch Occup Environ Health 2015; 88:963-72. [PMID: 25647545 PMCID: PMC4564440 DOI: 10.1007/s00420-015-1024-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 01/20/2015] [Indexed: 01/07/2023]
Abstract
PURPOSE The effect of one pesticide spraying season on DNA damage was measured on B and T lymphocytes among open-field farmers and controls. METHODS At least two peripheral blood samples were collected from each individual: one in a period without any pesticide application, several weeks after the last use (January, at period P0), and another in the intensive pesticide spraying period (May or June, at period P4). DNA damage was studied by alkaline comet assay on isolated B or T lymphocytes. RESULTS Longitudinal comparison of DNA damage observed at both P0 and P4 periods revealed a statistically significant genotoxic effect of the pesticide spraying season in both B (P = 0.02) and T lymphocytes (P = 0.02) in exposed farmers. In contrast, non-farmers did not show any significant modifications. DNA damage levels in B and T lymphocytes were significantly higher in farmers than in non-farmers during the P4 period (P = 0.003 and P = 0.001 for B and T lymphocytes, respectively) but not during the P0 period. The seasonal effect observed among farmers was not correlated with either total farm area, farm area devoted to crops or recent solar exposure. On average, farmers used pesticides for 21 days between P0 and P4. Between the two time points studied, there was a tendency for a potential effect of the number of days of fungicide treatments (r (2) = 0.43; P = 0.11) on T lymphocyte DNA damage. CONCLUSIONS A genotoxic effect was found in lymphocytes of farmers exposed to pesticides, suggesting in particular the possible implication of fungicides.
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Affiliation(s)
- Pierre Lebailly
- Univ. Caen Basse-Normandie, Cancers et Préventions, IFR146 ICORE, 14000, Caen, France
- INSERM, UMR 1086, 14000, Caen, France
- Centre de Lutte Contre le Cancer François Baclesse, 14076, Caen, France
| | - Gladys Mirey
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France
| | - Fabrice Herin
- INSERM, UMR 1027, Université de Toulouse, UPS, 31000, Toulouse, France
- CHU Toulouse, Service des Maladies Professionnelles et Environnementales, 31059, Toulouse, France
| | - Yannick Lecluse
- Univ. Caen Basse-Normandie, Cancers et Préventions, IFR146 ICORE, 14000, Caen, France
- INSERM, UMR 1086, 14000, Caen, France
- Centre de Lutte Contre le Cancer François Baclesse, 14076, Caen, France
| | - Bernard Salles
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France
| | - Elisa Boutet-Robinet
- INRA, UMR 1331, Toxalim, Research Centre in Food Toxicology, 31027, Toulouse, France.
- Université de Toulouse, UPS, UMR 1331, Toxalim, 31062, Toulouse, France.
- Equipe « Génotoxicité et Signalisation » - Toxalim - UMR 1331, INRA/INP/UPS, 180 chemin de Tournefeuille, BP 93173, 31027, Toulouse Cedex 3, France.
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195
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Dubey P, Mishra AK, Shukla P, Singh AK. Differential sensitivity of barley (Hordeum vulgare L.) to chlorpyrifos and propiconazole: Morphology, cytogenetic assay and photosynthetic pigments. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 124:29-36. [PMID: 26453227 DOI: 10.1016/j.pestbp.2015.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 03/29/2015] [Accepted: 03/30/2015] [Indexed: 06/05/2023]
Abstract
The present investigation was performed to evaluate the effects of an insecticide and fungicide, namely, chlorpyrifos (CP) and propiconazole (PZ) on barley (Hordeum vulgare L. variety Karan-16). The seeds were treated with three concentrations of CP and PZ, i.e., 0.05%, 0.1% and 0.5% for 6 hours after different pre-soaking durations of 7, 17 and 27 hours. Different pre-soaking durations (7, 17 and 27 h) represent three phases of the cell cycle i.e., G1, S and G2, respectively. Double distilled water and ethyl methane sulfonate were used as negative and positive controls, respectively. As compared to their respective controls, treated root tip meristematic cells of barley showed significant reductions in the germination percentage, seedling height, mitotic index and comparative increase in chromosomal aberrations against both the pesticides, and the magnitude was higher in CP. After treatment with the pesticides, chlorophyll and carotenoid contents increased up to 0.1% but reduced at 0.5% and the decrease was more prominent in CP as compared to PZ. In treated cells, fragmentation, stickiness, bridges, multipolar anaphase and diagonal anaphase were observed as aberrations. As compared to control, chromosomal aberrations were higher in CP as compared to PZ. The results of the present study concluded that CP induced chromosomal aberrations were more frequent than PZ; hence it has higher probability to cause genotoxicity in barley.
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Affiliation(s)
- Pragyan Dubey
- Department of Botany, Udai Pratap Autonomous College, Varanasi, Uttar Pradesh 221003, India
| | - Amit Kumar Mishra
- Department of Botany, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India.
| | - Pratiksha Shukla
- Department of Botany, Udai Pratap Autonomous College, Varanasi, Uttar Pradesh 221003, India
| | - Ashok Kumar Singh
- Department of Botany, Udai Pratap Autonomous College, Varanasi, Uttar Pradesh 221003, India
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196
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Kataria SK, Chhillar AK, Kumar A, Tomar M, Malik V. Cytogenetic and hematological alterations induced by acute oral exposure of imidacloprid in female mice. Drug Chem Toxicol 2015; 39:59-65. [DOI: 10.3109/01480545.2015.1026972] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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197
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Arslan M, Sevgiler Y, Buyukleyla M, Yardimci M, Yilmaz M, Rencuzogullari E. Sex-related effects of imidacloprid modulated by piperonyl butoxide and menadione in rats. Part II: genotoxic and cytotoxic potential. Drug Chem Toxicol 2015; 39:81-6. [DOI: 10.3109/01480545.2015.1029049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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198
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Pagano M, Faggio C. The use of erythrocyte fragility to assess xenobiotic cytotoxicity. Cell Biochem Funct 2015; 33:351-5. [PMID: 26399850 DOI: 10.1002/cbf.3135] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/29/2015] [Accepted: 08/12/2015] [Indexed: 12/25/2022]
Abstract
The erythrocytes of mammals represent a good model to evaluate the cytotoxicity of molecules, organic and inorganic, natural or synthetic, by cellular damage measure. Indeed, before any investigation on the mechanism of action of different molecules, it is important to perform a cytotoxicity assay. Among the different cytotoxicity assays that assess a possible toxicity in the red blood cells is the rate of haemolysis. This essay is based on the evaluation of the alterations of red cell membranes in the presence of an eventual xenobiotic. Red blood cells are the main cells in circulation, and they are responsible for transporting oxygen; in fact, any alterations of this process could be lethal. The plasma membrane of red blood cells is a multi-component structure such as to confer to these cells their characteristic biconcave shape, high flexibility, elasticity and deformability. However, there are clear signs of cellular suffering if there are any alterations to this structure. One method of toxicity assessment is based on measurement of the efflux of haemoglobin from suspended red blood cells. Haemolysis, and therefore the loss of haemoglobin, is the signal stability of the cell membrane of the erythrocytes. In recent years, the discovery of programmed cell death in mammalian red blood cells presented a diversification of the response to injury by these a-nucleated cells. This review shows that mammals' erythrocytes might serve well as a model cell to study on the cellular and molecular mechanisms of many treatments.
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Affiliation(s)
- Maria Pagano
- Department of Biological and Environmental Sciences, University of Messina Viale Ferdinando Stagno d'Alcontres, S.Agata-Messina, Italy
| | - Caterina Faggio
- Department of Biological and Environmental Sciences, University of Messina Viale Ferdinando Stagno d'Alcontres, S.Agata-Messina, Italy
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199
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Bakry FA, Ismail SM, Abd El-Atti MS. RETRACTED: Glyphosate herbicide induces genotoxic effect and physiological disturbances in Bulinus truncatus snails. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 123:24-30. [PMID: 26267049 DOI: 10.1016/j.pestbp.2015.01.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 01/22/2015] [Accepted: 01/23/2015] [Indexed: 06/04/2023]
Abstract
Herbicides are being used in agriculture for controlling noxious weed. Glyphosate is a herbicide that is widely applied to cereal crops in Egypt and is used in controlling a very broad spectrum of weeds. The present study was designed to investigate the response of the snail Bulinus truncatus as a bioindicator for physiological and molecular aspects of B. truncatus snails after exposure to sublethal concentrations of glyphosate for two weeks. In treating snails, glucose concentration (GL) in the haemolymph as well as lactate (LT) in soft tissues of treated snails increased, while glycogen (GN), pyruvate (PV), total protein (TP), nucleic acids (DNA and RNA) levels in snail's tissues decreased. The activities of superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR), thioredoxin reductase (TrxR), glycogen phosphorylase (GP), glucose-6-phosphatase (G-6-Pase), succinic dehydrogenase (SDH) and lactic dehydrogenase (LDH) enzymes in homogenate of snail's tissues were reduced in response to the treatment with the herbicide, while lipid peroxide (LP), sorbitol dehydrogenase (SDH) and transaminases (GOT and GPT) activity increased (P < 0.001). The changes in the number, position and intensity of DNA bands induced by glyphosate herbicide may be attributed to the fact that the herbicide can induce genotoxicity through DNA damage. Thus, the present result indicated that the genotoxicity products at low concentration and for long time treatment showed the hazard of herbicide addiction on man's life.
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Affiliation(s)
- Fayez A Bakry
- Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt.
| | - Somaya M Ismail
- Zoology Department, Faculty of Science, Cairo University, Giza, Egypt
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200
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Freire CA, Souza-Bastos LR, Chiesse J, Tincani FH, Piancini LDS, Randi MAF, Prodocimo V, Cestari MM, Silva-de-Assis HC, Abilhoa V, Vitule JRS, Bastos LP, de Oliveira-Ribeiro CA. A multibiomarker evaluation of urban, industrial, and agricultural exposure of small characins in a large freshwater basin in southern Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:13263-13277. [PMID: 25940483 DOI: 10.1007/s11356-015-4585-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 04/22/2015] [Indexed: 06/04/2023]
Abstract
Iguaçu River is the second most polluted river of Brazil. It receives agrochemicals and contaminants of urban and industrial sources along its course. A multibiomarker approach was employed here to evaluate the health of a small characin (Astyanax spp.) at two sites along the river, sampled during a dry (autumn) and a rainy (spring) season. Biomarkers were condition factor and somatic indices (gonads and liver); genetic damage (comet assay and micronucleus test); enzyme activities such as hepatic catalase (CAT) and glutathione S-transferase (GST), lipoperoxidation (LPO), branchial and renal carbonic anhydrase (CA), acetylcholinesterase (AChE) in the muscle and the brain, histopathology of the liver and gills, and concentrations of polycyclic aromatic hydrocarbons (PAHs) in bile. There were no consistent differences in biomarker responses between the two study sites. Some biomarkers revealed greater potential impact in the rainy season, when increased amounts of contaminants are washed into the river (combined CAT inhibition and LPO increase, CA upregulation). Other biomarkers, however, revealed potential greater impact in the dry season, when contaminants potentially concentrate (GST induction, AChE inhibition, and liver histopathological alterations). Although of a complex nature, field experiments such as this provide rich data for monitoring protocols and assessment of general risk of exposure to pollutants of river systems.
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Affiliation(s)
- Carolina A Freire
- Departamento de Fisiologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Centro Politécnico, Curitiba, Paraná, CEP 81531-990, Brazil,
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