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Wang Z, Du Z, Shi Y, Qi P, Di S, Zhao H, Ji X, Lu C, Wang X. Transfer and risk assessment of fipronil in laying hen tissues and eggs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 932:172811. [PMID: 38701918 DOI: 10.1016/j.scitotenv.2024.172811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/18/2024] [Accepted: 04/25/2024] [Indexed: 05/05/2024]
Abstract
Fipronil is a persistent insecticide known to transfer into hen eggs from exposure from animal drinking water and feed, but some questions remain regarding its transfer behavior and distribution characteristics. Therefore, the dynamic metabolism, residue distribution and transfer factor (TF) of fipronil were investigated in 11 edible tissues of laying hens and eggs over 21 days. After a continuous low-dose drinking water exposure scenario, the sum of fipronil and all its metabolites (defined as fipronilT) quickly transferred to each edible tissue and gradually increased with exposure time. FipronilT residue in eggs first appeared at 3 days and then gradually increased. After a single high-dose feed exposure scenario, fipronilT residue in edible tissues first appeared after 2 h, quickly peaked at 1 day, and then gradually decreased. In eggs, fipronilT residue first appeared at 2 days, peaked 6-7 days and then gradually decreased. The TF values followed the order of the skin (0.30-0.73) > egg yolk (0.30-0.71) > bottom (0.21-0.59) after drinking water exposure, and the order of the skin (1.01-1.59) > bottom (0.75-1.1) > egg yolk (0.58-1.10) for feed exposure. Fipronil sulfone, a more toxic compound, was the predominant metabolite with higher levels distributed in the skin and bottom for both exposure pathways. FipronilT was distributed in egg yolks rather than in albumen owing to its lipophilicity, and the ratio of egg yolk to albumen may potentially reflect the time of exposure. The distinction is that the residues after feed exposure were much higher than that after drinking water exposure in edible tissues and eggs. The study highlights the residual characteristics of two exposure pathways, which would contribute to the tracing of contamination sources and risk assessment.
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Affiliation(s)
- Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Ziyan Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Yanke Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Xiaofeng Ji
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China
| | - Chunbo Lu
- Zhejiang Provincial Center for Animal Disease Prevention and Control, Hangzhou 310021, PR China
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China.
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Farder-Gomes CF, Miranda FR, Fernandes KM, Bernardes RC, Sena Bastos DS, Licursi de Oliveira L, Martins GF, Serrão JE. Exposure to low-concentration fipronil impairs survival, behavior, midgut morphology and physiology of Aedes aegypti larvae. CHEMOSPHERE 2024; 358:142240. [PMID: 38705417 DOI: 10.1016/j.chemosphere.2024.142240] [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: 06/09/2023] [Revised: 11/30/2023] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
The Aedes aegypti mosquito is a vector for various arboviruses, including dengue and yellow fever. Insecticides, such as pyrethroids and organophosphates, are widely used to manage and control these insects. However, mosquitoes have developed resistance to these chemicals. Therefore, this study aimed to investigate the effects of the commercial formulation of fipronil (Tuit® Florestal; 80% purity) on the survival, behavior, morphology, and proteins related to signaling pathways of the midgut in A. aegypti larvae under controlled laboratory conditions. Significant reductions in immature survival were observed in all concentrations of fipronil tested. Low insecticide concentration (0.5 ppb) led to decreased locomotor activity in the larvae and caused disorganization of the epithelial tissue in the midgut. Moreover, exposure to the insecticide decreased the activity of detoxifying enzymes such as catalase, superoxide dismutase, and glutathione-S-transferase. On the other hand, the insecticide increased protein oxidation and nitric oxide levels. The detection of LC3, caspase-3, and JNK proteins, related to autophagy and apoptosis, increased after exposure. However, there was a decrease in the positive cells for ERK 1/2. Furthermore, the treatment with fipronil decreased the number of positive cells for the proteins FMRF, Prospero, PH3, Wg, Armadillo, Notch, and Delta, which are related to cell proliferation and differentiation. These findings demonstrate that even at low concentrations, fipronil exerts larvicidal effects on A. aegypti by affecting behavior and enzymatic detoxification, inducing protein oxidation, free radical generation, midgut damage and cell death, and inhibiting cell proliferation and differentiation. Thus, this insecticide may represent a viable alternative for controlling the spread of this vector.
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Affiliation(s)
| | - Franciane Rosa Miranda
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570-900, Brazil.
| | - Kenner Morais Fernandes
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570-900, Brazil.
| | | | - Daniel Silva Sena Bastos
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570-900, Brazil.
| | | | - Gustavo Ferreira Martins
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570-900, Brazil.
| | - José Eduardo Serrão
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570-900, Brazil.
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Lathwal E, Kumar S, Sahoo PK, Ghosh S, Mahata S, Nasare VD, Kapavarapu R, Kumar S. Pyrazole-based and N,N-diethylcarbamate functionalized some novel aurone analogs: Design, synthesis, cytotoxic evaluation, docking and SAR studies, against AGS cancer cell line. Heliyon 2024; 10:e26843. [PMID: 38463825 PMCID: PMC10920165 DOI: 10.1016/j.heliyon.2024.e26843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 02/20/2024] [Indexed: 03/12/2024] Open
Abstract
The present study involves the design, synthesis, and biological evaluation of a series of thirty-three, pyrazole-based and N,N-diethylcarbamate functionalized, novel aurone analogs, against AGS cancer cell line. These novel aurone analogs are obtained from the reaction of pyrazole-based 6-hydroxyaurones with diethyl carbamoyl chloride using mild basic reagent. The cytotoxic activities of these compounds were evaluated against a human gastric adenocarcinoma cell line (AGS) and disclosed some potential outcomes as several analogs were found to have cytotoxicity better than the reference drugs Oxaliplatin and Leucovorin. The structure-activity relationship (SAR) study further unveiled the critical role of replacing the hydroxyl group in ring A with a carbamoyl group for cytotoxic activity. Among these aurone analogs, 8e and 8f, with IC50 values of 6.5 ± 0.024 μM and 6.6 ± 0.035 μM, respectively, are identified as the most active compounds. Molecular docking studies were conducted against HER2, a human epidermal growth factor involved in gastric and ovarian cancer, to investigate the binding interactions between the compounds and the protein HER2, where7e and 8e exhibited maximum interactions.
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Affiliation(s)
- Ekta Lathwal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, India
- Govt. College, Tigaon, Faridabad, 121101, Haryana, India
| | - Sanjeev Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, India
- PGT Chemistry, KendriyaVidyalaya Kokrajhar, Assam, 783370, India
| | - Pranab Kumar Sahoo
- Department of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, India
| | - Sushmita Ghosh
- Department of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, India
| | - Sutapa Mahata
- Department of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, India
| | - Vilas D. Nasare
- Department of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, India
| | - Ravikumar Kapavarapu
- Department of Pharmaceutical Chemistry and Phytochemistry, Nirmala College of Pharmacy, Atmakur, Mangalagiri, Andhra Pradesh, India
| | - Suresh Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, India
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Kuo JF, Cheng YH, Tung CW, Wang CC. Fipronil disturbs the antigen-specific immune responses and GABAergic gene expression in the ovalbumin-immunized BALB/c mice. BMC Vet Res 2024; 20:30. [PMID: 38254069 PMCID: PMC10801957 DOI: 10.1186/s12917-024-03878-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 12/23/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND Fipronil (FPN) is a broad-spectrum pesticide and commonly known as low toxicity to vertebrates. However, increasing evidence suggests that exposure to FPN might induce unexpected adverse effects in the liver, reproductive, and nervous systems. Until now, the influence of FPN on immune responses, especially T-cell responses has not been well examined. Our study is designed to investigate the immunotoxicity of FPN in ovalbumin (OVA)-sensitized mice. The mice were administered with FPN by oral gavage and immunized with OVA. Primary splenocytes were prepared to examine the viability and functionality of antigen-specific T cells ex vivo. The expression of T cell cytokines, upstream transcription factors, and GABAergic signaling genes was detected by qPCR. RESULTS Intragastric administration of FPN (1-10 mg/kg) for 11 doses did not show any significant clinical symptoms. The viability of antigen-stimulated splenocytes, the production of IL-2, IL-4, and IFN-γ by OVA-specific T cells, and the serum levels of OVA-specific IgG1 and IgG2a were significantly increased in FPN-treated groups. The expression of the GABAergic signaling genes was notably altered by FPN. The GAD67 gene was significantly decreased, while the GABAR β2 and GABAR δ were increased. CONCLUSION FPN disturbed antigen-specific immune responses by affecting GABAergic genes in vivo. We propose that the immunotoxic effects of FPN may enhance antigen-specific immunity by dysregulation of the negative regulation of GABAergic signaling on T cell immunity.
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Affiliation(s)
- Jui-Fang Kuo
- School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Yin-Hua Cheng
- PhD Program in Toxicology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Wei Tung
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chia-Chi Wang
- School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.
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Zhuang J, Jiang Z, Chen D, Li J, Crabbe MJC, Qiu M, Zheng Y, Qu W. Thyroid-Disrupting Effects of Exposure to Fipronil and Its Metabolites from Drinking Water Based on Human Thyroid Follicular Epithelial Nthy-ori 3-1 Cell Lines. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:6072-6084. [PMID: 37022920 DOI: 10.1021/acs.est.2c08627] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Fipronil is a broad-spectrum insecticide used for plants and poultry. Owing to its widespread use, fipronil and its metabolites (fipronil sulfone, fipronil desulfinyl, and fipronil sulfide), termed FPM, can be frequently detected in drinking water and food. Fipronil can affect the thyroid function of animals, but the effects of FPM on the human thyroid remain unclear. We employed human thyroid follicular epithelial Nthy-ori 3-1 cells to examine combined cytotoxic responses, thyroid-related functional proteins including the sodium-iodide symporter (NIS), thyroid peroxidase (TPO), deiodinases I-III (DIO I-III), and the nuclear factor erythroid-derived factor 2-related factor 2 (NRF2) pathway induced by FPM of 1-1000-fold concentrations detected in school drinking water collected from a heavily contaminated area of the Huai River Basin. Thyroid-disrupting effects of FPM were evaluated by examining biomarkers of oxidative stress and thyroid function and tetraiodothyronine (T4) levels secreted by Nthy-ori 3-1 cells after FPM treatment. FPM activated the expression of NRF2, HO-1 (heme oxygenase 1), TPO, DIO I, and DIO II but inhibited NIS expression and increased the T4 level of thyrocytes, indicating that FPM can disrupt the function of human thyrocytes through oxidative pathways. Given the adverse impact of low FPM concentrations on human thyrocytes, supportive evidence from rodent studies, and the critical importance of thyroid hormones on development, the effects of FPM on the neurodevelopment and growth of children warrant priority attention.
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Affiliation(s)
- Jianhui Zhuang
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhiqiang Jiang
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Dawei Chen
- China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - Jingguang Li
- China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - M James C Crabbe
- Wolfson College, Oxford University, Oxford OX2 6UD, U.K
- Institute of Biomedical and Environmental Science & Technology, University of Bedfordshire, Luton LU1 3JU, U.K
| | - Meiyue Qiu
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, China
| | - Weidong Qu
- Key Laboratory of the Public Health Safety, Ministry of Education, Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
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Zhang Q, Wang X, Wang Q, Qi D, Huang Y, Chen R, Shan Y, Fang W. Toxicological effects of fipronil on laying hens and its residue elimination in eggs. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:19304-19312. [PMID: 36227495 DOI: 10.1007/s11356-022-23506-7] [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: 06/23/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Eighty 24-week-old laying hens were divided into eight groups, seven given a single oral dose per chicken with 7 dosing levels from 13.6 to 137 mg/kg body weight (bw) and one serving as sham control. The hens were observed for 28 days for clinical abnormalities, egg yield, and body weight. Egg samples from groups of low-to-medium doses were analyzed for residues of fipronil and its metabolites by LC-MS/MS. Blood and organ samples from hens of the group receiving 63.3 mg/kg bw were collected for hematochemical and histopathological analysis. We found that the median lethal dose (LD50) of fipronil was 74 mg/kg bw for laying hens. No death occurred, and there were no obvious changes in body weight and egg production in the hens receiving doses at or below 20 mg/kg bw. In the hens that survived exposure to the dose at 63.3 mg/kg bw, there was significant reduction in body weight and egg yield; histopathological changes in the liver and kidney; and increased levels of creatine, urea, glutamate oxaloacetate transferase, and glutamate pyruvic transaminase. Fipronil-sulfone was the residual marker in eggs with significantly higher concentrations and longer withdrawal periods than its maternal compound. We conclude that fipronil is efficiently transformed into fipronil-sulfone in the body with subsequent excretion into eggs. More attention should be paid to the potential food safety risk of fipronil-sulfone because of its persistence in eggs.
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Affiliation(s)
- Qiaoyan Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Xiajun Wang
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Qiang Wang
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Dake Qi
- School of Public Health, Hangzhou Medical College, Hangzhou, 310013, Zhejiang, China
| | - Yali Huang
- School of Public Health, Hangzhou Medical College, Hangzhou, 310013, Zhejiang, China
| | - Riping Chen
- School of Public Health, Hangzhou Medical College, Hangzhou, 310013, Zhejiang, China
| | - Ying Shan
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Weihuan Fang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
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Suo D, Song Z, Xiao Z, Zhuang F, Fan L, Fan X. Fipronil and its metabolites in chicken feather: residue analysis, depletion study, and application analysis of pollution sources in laying hens. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18499-18508. [PMID: 36215024 DOI: 10.1007/s11356-022-23527-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
A method based on a multi-mechanism impurity adsorption and ultra-performance liquid chromatography-tandem mass spectrometry was established to detect fipronil and four of its metabolites in chicken feathers. This method was successfully applied to the depletion study of fipronil in feathers of laying hens. Fipronil and two metabolites were found in feathers during treatment. Fipronil concentrations in feathers increased during medication and then regularly decreased during withdrawal, and they were still detected on the 14th day after withdrawal. High residue concentrations were also present in feathers on day 23 of the experimental period. Pollution sources of fipronil can be inferred on the basis of the residue ratio of fipronil metabolites from different pollution modes. Result shows that feathers were an effective matrix for residue monitoring and risk analysis of fipronil in animals and the environment.
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Affiliation(s)
- Decheng Suo
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Science, Beijing, 100081, China.
| | - Zhandeng Song
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Zhiming Xiao
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Fenting Zhuang
- Liaoning Agricultural Development Service Center, Shenyang, Liaoning, 110000, China
| | - Li Fan
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Xia Fan
- Institute of Quality Standards and Testing Technology for Agricultural Products, Chinese Academy of Agricultural Science, Beijing, 100081, China
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Natural Ghee Enhances the Biochemical and Immunohistochemical Reproductive Performance of Female Rabbits. Life (Basel) 2022; 13:life13010080. [PMID: 36676029 PMCID: PMC9861198 DOI: 10.3390/life13010080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/10/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
The reproductive effects of several dietary fats (margarine, ghee, and olive oil) on female rabbits were studied. For that purpose, 40 mature female rabbits were designed into four groups of ten rabbits each. Group I was given a control diet, Group II received 10% margarine, Group III received 10% ghee, and Group IV received 10% olive oil; after two months, all rabbits were sacrificed. Lipid profile and reproductive hormones levels were assayed in serum besides ovarian antioxidant enzyme and lipid peroxidation. Furthermore, ovarian tissue was examined using hematoxylin−eosin staining and immunohistochemistry of estrogen, follicle-stimulating hormone (FSH), luteinizing hormone (LH) receptor, and caspase 3. Our data revealed that the margarine significantly (p < 0.05) increased lipid profile and malondialdehyde (MDA) level, which decreased in olive oil and ghee compared to the control. In addition, serum FSH and estrogen (estradiol (E2)) were significantly (p < 0.05) decreased in the group treated with margarine. Furthermore, there was a significant decrease in ovarian superoxide dismutase (SOD) and catalase activity in the margarine-treated group. In contrast, SOD and MDA showed a significant (p > 0.05) increase in the olive oil and ghee- treated group compared to the control group. At the same time, there was a significant increase in serum FSH and (estradiol (E2)) in the ghee and olive oil groups, respectively, compared to the control. The margarine feed group showed moderate immunoreaction of estrogen, FSH, LH receptor, and strong caspase 3, while ghee and olive oil showed strong immunoreaction of estrogen, FSH, LH receptor, and mild immunoreaction of caspase 3 in ovarian tissue. Photomicrograph of rabbit ovarian tissue showed vacuolation in small and growing follicles in the margarine group but appeared normal in ghee and the olive oil-treated group. In conclusion, based on these results, olive oil and ghee have a strong capability of enhancing lipid profile, antioxidant status, and female hormonal functions.
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Guima SES, Piubeli F, Bonfá MRL, Pereira RM. New Insights into the Effect of Fipronil on the Soil Bacterial Community. Microorganisms 2022; 11:microorganisms11010052. [PMID: 36677344 PMCID: PMC9862053 DOI: 10.3390/microorganisms11010052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Fipronil is a broad-spectrum insecticide with remarkable efficacy that is widely used to control insect pests around the world. However, its extensive use has led to increasing soil and water contamination. This fact is of concern and makes it necessary to evaluate the risk of undesirable effects on non-target microorganisms, such as the microbial community in water and/or soil. Studies using the metagenomic approach to assess the effects of fipronil on soil microbial communities are scarce. In this context, the present study was conducted to identify microorganisms that can biodegrade fipronil and that could be of great environmental interest. For this purpose, the targeted metabarcoding approach was performed in soil microcosms under two environmental conditions: fipronil exposure and control (without fipronil). After a 35-day soil microcosm period, the 16S ribosomal RNA (rRNA) gene of all samples was sequenced using the ion torrent personal genome machine (PGM) platform. Our study showed the presence of Proteobacteria, Actinobacteria, and Firmicutes in all of the samples; however, the presence of fipronil in the soil samples resulted in a significant increase in the concentration of bacteria from these phyla. The statistical results indicate that some bacterial genera benefited from soil exposure to fipronil, as in the case of bacteria from the genus Thalassobacillus, while others were affected, as in the case of bacteria from the genus Streptomyces. Overall, the results of this study provide a potential contribution of fipronil-degrading bacteria.
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Affiliation(s)
- Suzana Eiko Sato Guima
- Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), Sao Paulo 05508000, Brazil
| | - Francine Piubeli
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Sevilla, 41012 Sevilla, Spain
| | - Maricy Raquel Lindenbah Bonfá
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados (UFGD), Dourados 79804970, Brazil
| | - Rodrigo Matheus Pereira
- Faculty of Biological and Environmental Sciences, Federal University of Grande Dourados (UFGD), Dourados 79804970, Brazil
- Correspondence:
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10
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Xia X, Zheng Y, Tang X, Zhao N, Wang B, Lin H, Lin Y. Nontarget Identification of Novel Per- and Polyfluoroalkyl Substances in Cord Blood Samples. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17061-17069. [PMID: 36343112 DOI: 10.1021/acs.est.2c04820] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) can penetrate the placental barrier and reach embryos through cord blood, probably causing adverse birth outcomes. Therefore, novel PFASs identification in cord blood and their relationships with birth outcomes are essential to evaluate prenatal exposure risk of PFASs. Herein, 16 legacy and 12 novel PFASs were identified in 326 cord blood samples collected from pregnant women in Jinan, Shandong, China. The presence of perfluoropolyether carboxylic acids, hydrogen-substituted polyfluoroetherpropane sulfate, and 3:3 chlorinated polyfluoroalkyl ether alcohol in cord blood was reported for the first time. Two extensive OECD (Organization for Economic Co-operation and Development)-defined PFASs named fipronil sulfone and 2-chloro-6-(trifluoromethyl)pyridine-3-ol were also identified. Quantification results showed that the emerging and OECD-defined PFASs separately accounted for 9.4 and 9.7% of the total quantified PFASs, while the legacy PFOA, PFOS, and PFHxS were still the most abundant PFASs with median concentrations of 2.12, 0.58, and 0.37 ng/mL, respectively. Several PFASs (C9-C12 PFCAs, C6-C8 PFSAs, and 6:2 Cl-PFESA) showed significantly higher levels for older maternities than younger ones. PFHxS levels were positively associated with birth weight and ponderal index (p < 0.05). The results provide comprehensive information on the presence and exposure risks of several novel PFASs during the early life stage.
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Affiliation(s)
- Xiaowen Xia
- Department of Occupational Health and Environmental Health, School of Public Health, Qingdao University, Qingdao266071, China
| | - Yuxin Zheng
- Department of Occupational Health and Environmental Health, School of Public Health, Qingdao University, Qingdao266071, China
| | - Xiaowen Tang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao266071, China
| | - Nan Zhao
- School of Environmental Science and Engineering, Shandong University, Qingdao266237, China
| | - Bing Wang
- Biomedical Centre, Qingdao University, Qingdao266071, China
| | - Huan Lin
- Department of Occupational Health and Environmental Health, School of Public Health, Qingdao University, Qingdao266071, China
| | - Yongfeng Lin
- Department of Occupational Health and Environmental Health, School of Public Health, Qingdao University, Qingdao266071, China
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Correlation between in vitro toxicity of pesticides and in vivo risk guidelines in support of complex operating site risk management: A meta-analysis. Food Chem Toxicol 2022; 170:113502. [DOI: 10.1016/j.fct.2022.113502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/18/2022]
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12
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Insights into the toxicity and biodegradation of fipronil in contaminated environment. Microbiol Res 2022; 266:127247. [DOI: 10.1016/j.micres.2022.127247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/05/2022]
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13
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Abdelhafez HEDH, Abdallah AA, El-Dahshan AA, Abd El-Baset YA, Morsy OM, Ahmed MBM. Ameliorative effects of the phytochemicals in dates (Phoenix dactylifera) against the toxicological changes induced by fipronil in male albino rats. Toxicology 2022; 480:153313. [PMID: 36113622 DOI: 10.1016/j.tox.2022.153313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/18/2022] [Accepted: 09/04/2022] [Indexed: 11/30/2022]
Abstract
Scientific evidence has shown that fipronil induces oxidative stress and genotoxicity. Our study aimed to evaluate the potential oxidation in redox parameters and DNA, as well as determine the protective effect of date extract of increasing resistance to cellular damage. 30 Male albino rats were divided into six groups ( n = 5): 1) control group; 2) treatment group with date extract (1 g/kg B.W.); 3) treatment group with 1/20 LD50 of fipronil; 4) treatment group with 1/40 LD50 of fipronil; 5) treatment group with 1/20 LD50 of fipronil + 1 g/kg date extract; and 6) treatment group with 1/40 LD50 of fipronil + 1 g/kg dates extract. Date extract showed a high content of phenolic compounds and antioxidant properties. Fipronil increased 8-hydroxy-2-deoxyguanosine levels and lipid peroxidation by malondialdehyde but decreased the total antioxidant capacity in plasma. Moreover, glutathione, catalase, and superoxide dismutase levels in the liver and kidney decreased, along with histopathological abnormalities. Additionally, tail moment parameters of liver DNA and micronucleus frequencies in the bone marrow increased. This study showed that fipronil-induced various health hazards in vivo, whereas date extract alleviated the said toxicological effects. However, date extract failed to reduce genotoxicity.
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Affiliation(s)
- Hossam El Din H Abdelhafez
- Mammalian and Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center, P.O. Box 12618, Dokki, Giza, Egypt.
| | - Amr A Abdallah
- Mammalian and Aquatic Toxicology Department, Central Agricultural Pesticides Laboratory, Agricultural Research Center, P.O. Box 12618, Dokki, Giza, Egypt
| | - Asmaa A El-Dahshan
- Department of Zoology Faculty of Science (Girls Branch), Al-Azhar University, Cairo, Egypt
| | - Yasser A Abd El-Baset
- Department Cotton Chemistry and Textile Fibers, Cotton Research Institute, Agricultural Research Center Giza, Egypt
| | - Osama M Morsy
- Basic and Applied Science Department, College of Engineering and Technology, Arab Academy for Science and Technology and Maritime Transport (AASTMT), P.O. Box 2033, Cairo, Egypt
| | - Mohamed Bedair M Ahmed
- Department of Food Toxicology and Contaminants, National Research Centre, 33 El-Bohouth St., P.O. Box 12622, Dokki, Cairo, Egypt.
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14
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Khidkhan K, Poapolathep S, Kulprasertsri S, Sukkheewan R, Khunlert P, Giorgi M, Poapolathep A. Comparative in vitro biotransformation of fipronil in domestic poultry using liver microsome. J Vet Sci 2022; 23:e82. [PMID: 36259101 PMCID: PMC9715393 DOI: 10.4142/jvs.22178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/21/2022] [Accepted: 09/01/2022] [Indexed: 12/15/2022] Open
Abstract
Domestic poultry are among the non-target species of exposure to fipronil, but limited information is available on the metabolic effects of fipronil exposure in avian. We investigated the comparative capacity of in vitro biotransformation of fipronil among chicken, duck, quail, goose, and rat. Interspecies differences in kinetic parameters were observed; the clearance rate calculations (Vmax/Km) indicated that chicken and duck are more efficient in the cytochrome P450-mediated metabolism of fipronil to sulfone than quail, goose and rat. The lower hepatic clearance of fipronil in quail, goose and rat, suggested that fipronil sulfone may serve as a biomarker to indicate fipronil exposure in these species.
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Affiliation(s)
- Kraisiri Khidkhan
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Saranya Poapolathep
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Sittinee Kulprasertsri
- Department of Farm Resources and Production Medicine, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Rattapong Sukkheewan
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Paphatsara Khunlert
- Agricultural Toxic Substance Research Group, Agricultural Production Sciences Research and Development Division, Department of Agriculture, Ministry of Agriculture and Cooperatives, Bangkok 10900, Thailand
| | - Mario Giorgi
- Department of Veterinary Sciences, University of Pisa, Via Livornese (latomonte), San Piero a Grado, Italy
| | - Amnart Poapolathep
- Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
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15
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Castillo G, Barrios-Arpi L, Ramos-Gonzalez M, Vidal P, Gonzales-Irribarren A, Ramos-Cevallos N, Rodríguez JL. Neurotoxicity associated with oxidative stress and inflammasome gene expression induced by allethrin in SH-SY5Y cells. Toxicol Ind Health 2022; 38:777-788. [PMID: 36074087 DOI: 10.1177/07482337221089585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pyrethroids, including allethrin, have largely been used as commercial insecticides. The toxicity of allethrin is little known, but it is assumed that, as occurs with other pyrethroids, it could cause alterations of the nervous system and pose both occupational and non-occupational health hazards. To evaluate the neurotoxicity of allethrin we used the MTT assay of SH-SY5Y neuroblastoma cells to determine cell viability. Dose-dependent reductions of cell viability served to compare the vehicle-group and the IC50 for allethrin, which was 49.19 μM. ROS production increased significantly at concentrations of 10-200 μM of allethrin, and NO levels were significantly increased by the effect of allethrin at a minimum concentration of 50 μM. Lipid peroxidation increased by the effect of allethrin at concentrations of 25, 50, 100, and 200 μM. Caspase 3/7 activity was induced by allethrin concentrations of 50, 100, and 200 μM. Here, we suggest that allethrin might affect the inflammasome complex (Caspase-1, NLRP3, and PYDC1) and apoptosis (Bax and Bcl-2) gene expression by mRNA fold change expression levels shown in Caspase-1 (2.46-fold), NLRP3 (1.57-fold), PYDC1 (1.48-fold), and Bax (2.1-fold). These results demonstrated that allethrin induced neurotoxicity effects on SH-SY5Y cells through activation of inflammasome pathways, cell death, and oxidative stress.
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Affiliation(s)
- Giovana Castillo
- Faculty of Pharmacy and Biochemistry, Research Institute Juan de Dios Guevara, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Luis Barrios-Arpi
- Animal Phisiology Laboratory, Faculty of Veterinary Medicine, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Mariella Ramos-Gonzalez
- Zootechnics and Animal Production Laboratory, Faculty of Veterinary Medicine, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Paola Vidal
- Animal Phisiology Laboratory, Faculty of Veterinary Medicine, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Alejandro Gonzales-Irribarren
- Pharmacology and Toxicology Laboratory, Faculty of Veterinary Medicine, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Norma Ramos-Cevallos
- Faculty of Pharmacy and Biochemistry, Research Institute Juan de Dios Guevara, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - José-Luis Rodríguez
- Pharmacology and Toxicology Laboratory, Faculty of Veterinary Medicine, 33209Universidad Nacional Mayor de San Marcos, Lima, Peru.,Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology, Universidad Complutense de Madrid, Madrid, Spain
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16
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The SH-SY5Y human neuroblastoma cell line, a relevant in vitro cell model for investigating neurotoxicology in human: focus on organic pollutants. Neurotoxicology 2022; 92:131-155. [PMID: 35914637 DOI: 10.1016/j.neuro.2022.07.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 07/21/2022] [Accepted: 07/27/2022] [Indexed: 12/18/2022]
Abstract
Investigation of the toxicity triggered by chemicals on the human brain has traditionally relied on approaches using rodent in vivo models and in vitro cell models including primary neuronal cultures and cell lines from rodents. The issues of species differences between humans and rodents, the animal ethical concerns and the time and cost required for neurotoxicity studies on in vivo animal models, do limit the use of animal-based models in neurotoxicology. In this context, human cell models appear relevant in elucidating cellular and molecular impacts of neurotoxicants and facilitating prioritization of in vivo testing. The SH-SY5Y human neuroblastoma cell line (ATCC® CRL-2266TM) is one of the most used cell lines in neurosciences, either undifferentiated or differentiated into neuron-like cells. This review presents the characteristics of the SH-SY5Y cell line and proposes the results of a systematic review of literature on the use of this in vitro cell model for neurotoxicity research by focusing on organic environmental pollutants including pesticides, 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD), flame retardants, PFASs, parabens, bisphenols, phthalates, and PAHs. Organic environmental pollutants are widely present in the environment and increasingly known to cause clinical neurotoxic effects during fetal & child development and adulthood. Their effects on cultured SH-SY5Y cells include autophagy, cell death (apoptosis, pyroptosis, necroptosis, or necrosis), increased oxidative stress, mitochondrial dysfunction, disruption of neurotransmitter homeostasis, and alteration of neuritic length. Finally, the inherent advantages and limitations of the SH-SY5Y cell model are discussed in the context of chemical testing.
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17
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Awad MA, Ahmed ZSO, AbuBakr HO, Elbargeesy GAEFH, Moussa MHG. Oxidative stress, apoptosis and histopathological alterations in brain stem and diencephalon induced by subacute exposure to fipronil in albino rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:936-948. [PMID: 34345985 DOI: 10.1007/s11356-021-15537-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
Fipronil (FIP) is a highly effective insecticide that has been used in agriculture and veterinary medicine. Its neurotoxic effect to insects and to non-target organisms, after nonintentional exposure, was reported. Many studies were conducted to evaluate FIP effects on mammals. However, slight is known about its effect on the brain stem and diencephalon. The current study was designed to investigate the ability of FIP to induce oxidative stress as a molecular mechanism of FIP neurotoxicity that resulted in apoptosis and neural tissue reactivity in these regions. Ten adult male rats received 10 mg/kg of FIP technical grade by oral gavage, daily for 45 days. Brain stem and diencephalon were processed to examine oxidative stress-induced macromolecular alteration (MDA, PCC and DNA fragmentation). Also, the histopathological assessment and immunoreactivity for caspase-3 (active form), iNOS and GFAP were performed on the thalamus, hypothalamus and medulla oblongata. Our results revealed that FIP significantly raised MDA, PCC and DNA fragmentation (p ≤ 0.05). In addition, significantly increased immunoreactivity to GFAP, iNOS and caspase-3 (active form) in the FIP-treated group was noticed (p ≤ 0.05). Moreover, alterations in the histoarchitecture of the neural tissue of these regions were observed. We conclude that FIP can induce oxidative stress, leading to apoptosis and tissue reaction in brain stem and diencephalon.
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Affiliation(s)
- Mohamed A Awad
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Zainab Sabry Othman Ahmed
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Huda O AbuBakr
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | | | - Moukhtar H G Moussa
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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18
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Elazab ST, Samir O, Abass ME. Synergistic effects of sitagliptin and losartan against fipronil-induced hepatotoxicity in rats. Vet World 2021; 14:1901-1907. [PMID: 34475715 PMCID: PMC8404120 DOI: 10.14202/vetworld.2021.1901-1907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 06/10/2021] [Indexed: 01/24/2023] Open
Abstract
Background and Aim Fipronil (FPN) is a potent pesticide that is heavily used around the world in agriculture. However, its irrational use could potentially have deleterious effects on animals and humans. The present study aimed to investigate the ability of sitagliptin (Sit) and losartan (LOS), when used both individually or concurrently, to guard rat liver against the acute hepatotoxicity caused by FPN. Materials and Methods Forty-two adult male Wistar rats were equally divided into seven groups (6/group). Group I (control) received normal saline (0.5 mL/rat, vehicle for all treatments) by gavage once daily for 10 days. Group II received oral Sit (10 mg/kg body weight [BW]) daily for 10 days and Group III received oral LOS (5 mg/kg BW) daily for 10 days. Group IV received oral FPN (19.4 mg/kg BW; 1/5 of the oral LD50) for the past 5 days of the study. Groups V and VI received oral Sit (10 mg/kg BW) and LOS (5 mg/kg BW) daily, respectively, 5 days prior and 5 days during FPN administration (19.4 mg/kg BW). Group VII received oral Sit (10 mg/kg BW) and LOS (5 mg/kg BW) for 10 days with daily FPN during the past 5 days. After the end of the treatment period, the rats were humanely sacrificed and blood and liver tissue samples were collected for biochemical analysis and histopathological and immunohistochemical investigations. Results FPN administration resulted in elevated alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase serum concentrations as well as increased malondialdehyde levels and reduced catalase, superoxide dismutase, glutathione peroxidase, and glutathione activity. The histopathological investigation showed disorganization of the hepatic cords and focal necrosis of the hepatocytes in FPN-intoxicated rats. Furthermore, the immunohistochemical examination showed that hepatic caspase-3 was overexpressed in the FPN-treated rats. The administration of Sit and LOS before and alongside FPN markedly mitigated the alterations caused by FPN and the hepatoprotective effects were more prominent in the combination group. Conclusion Sit and LOS, both individually or in combination, confers considerable hepatoprotection against FPN-induced hepatotoxicity.
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Affiliation(s)
- Sara T Elazab
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, Mansoura,35516, Egypt
| | - Omar Samir
- Laboratory Animal Resource Center in Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.,Department of Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Marwa E Abass
- Department of Surgery, Anesthesiology and Radiology Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
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19
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Awad MA, Ahmed ZSO, AbuBakr HO, Elbargeesy GAEFH, Moussa MHG. Fipronil induced oxidative stress in neural tissue of albino rat with subsequent apoptosis and tissue reactivity. Acta Histochem 2021; 123:151764. [PMID: 34352653 DOI: 10.1016/j.acthis.2021.151764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 07/20/2021] [Accepted: 07/27/2021] [Indexed: 11/15/2022]
Abstract
Fipronil (FIP) insecticide is extensively used in agriculture, public health and veterinary medicine. Although it is considered as a neurotoxin to insects (target organisms) and exhibits neurological signs upon vertebrates (non-target organisms) exposure, slight is known about its potential neurotoxic effects and its molecular mechanisms on vertebrates. The current study is designed to assess oxidative stress as a molecular mechanism of FIP neurotoxicity subordinated with apoptosis and neural tissue reactivity. Ten adult male albino rats received 10 mg/kg body weight fipronil technical grade by oral gavage daily for 45 days (subacute exposure). Brain neural tissue regions (hippocampus, cerebellum and caudate putamen) were processed to examine oxidative stress induced cellular macromolecular alterations as MDA, PCC and DNA fragmentation. Besides, TNF-α and Bcl-2 gene expression and immunoreactivity for caspase-3 (active form), iNOS and GFAP were evaluated. Also, histopathological assessment was conducted. We found that FIP significantly raised MDA, PCC and DNA fragmentation (p ≤ 0.05). Also, it significantly upregulated TNF-α and non-significantly down-regulated Bcl-2 gene expression (p ≤ 0.05). Further, significant increased immunoreactivity to GFAP, iNOS and caspase-3 (active form) in these brain neural tissue regions in FIP treated group was noticed (p ≤ 0.05). Histopathological findings, including alterations in the histological architecture and neuronal degeneration, were also observed in these brain regions of FIP treated group. In conclusion, we suggest the ability of FIP to induce oxidative stress mediated macromolecular alterations, leading to apoptosis and tissue reaction in these brain regions which showed variable susceptibility to FIP toxic effects.
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Affiliation(s)
- Mohamed A Awad
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Zainab Sabry Othman Ahmed
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Huda O AbuBakr
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | | | - Moukhtar H G Moussa
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
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20
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Khafaga AF, El-Kazaz SE, Noreldin AE. Boswellia serrata suppress fipronil-induced neuronal necrosis and neurobehavioral alterations via promoted inhibition of oxidative/inflammatory/apoptotic pathways. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 785:147384. [PMID: 33933775 DOI: 10.1016/j.scitotenv.2021.147384] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/15/2021] [Accepted: 04/21/2021] [Indexed: 05/21/2023]
Abstract
Boswellic acid (BA) is a pentacyclic terpenoid derived from the gum-resin of Boswellia serrate. It is known for its strong antioxidant, anti-inflammatory, and anticancer properties. It has improved spatial learning and provides neuroprotection against trimethyltin-induced memory impairment. The aim of this study is to evaluate the possible neuroprotective activity of B. serrata extract (BSE) containing BA against fipronil (FPN)-induced neurobehavioral toxicity in Wister male albino rats. Sixty male rats were allocated equally into six groups. The first group served as control; the second and third groups received BSE at two different oral doses (250 or 500 mg/kg body weight [BW], respectively). The fourth group was orally intoxicated with FPN (20 mg/kg BW), whereas the fifth and sixth groups served as preventive groups and co-treated with FPN (20 mg/kg BW) and BSE (250 or 500 mg/kg BW, respectively). The experiment was conducted over 8 weeks period. Results revealed that co-treatment with BSE led to significant (p > 0.05) dose-dependent reduction in malondialdehyde (MDA), nitric oxide (NO), interleukin-6 (IL6), tumor necrosis factors-alpha (TNF-α), nuclear factor Kappa-B (NF-κB), Cyclooxegenase-2 (COX-2), prostaglandin E2 (PGE2), serotonin, and acetylcholine (ACh). Conversely, significant (p > 0.05) up regulation of catalase (CAT), glutathione peroxidase (GSH-Px), gamma-aminobutyric acid (GABA), and acetylcholine esterase (AChE) has reported in BSE-co-treated groups. In addition, significant (p > 0.05) promotion in neurobehaviours, histopathologic imaging of the cerebral, cerebellar, and hippocampal regions, and immunohistochemical expression of caspase-3 and glial fibrillary acidic protein (GFAP) were also reported in the BSE-treated groups in a dose-dependent manner. In conclusion, BSE (500 mg/kg BW) is a natural, promising neuroprotective agent that can mitigate FPN-induced neurobehavioral toxicity via the suppression of oxidative, inflammatory, and apoptotic pathways and relieve neuronal necrosis and astrogliosis.
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Affiliation(s)
- Asmaa F Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina 22758, Egypt.
| | - Sara E El-Kazaz
- Animals and Poultry Behavior and Management, Department of Animal Husbandry and Animal Wealth development, Faculty of Veterinary Medicine, Alexandria University, Egypt.
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22516, Egypt.
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21
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Song X, Wang X, Liao G, Pan Y, Qian Y, Qiu J. Toxic effects of fipronil and its metabolites on PC12 cell metabolism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112677. [PMID: 34450423 DOI: 10.1016/j.ecoenv.2021.112677] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Fipronil and its metabolites (fipronil sulfone, fipronil sulfide and fipronil desulfinyl) adversely affect the environment and human health. Targeted metabolomics and lipidomics based on ultra-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was used to analyse the alterations of glycerophospholipids and amino acids after exposure to fipronil and its metabolites at dosages of 0.5, 12.5 and 50 μM for 72 h and to evaluate their different toxic effects. Results showed that fipronil sulfone and fipronil desulfinyl are more toxic than their parent compound, with fipronil desulfinyl as the most toxic and fipronil sulfide as the least toxic. Fipronil and its metabolites affected the metabolism of PC18:1/16:0, PI18:0/20:4, arginine, leucine and tyrosine and the "phenylalanine, tyrosine and tryptophan biosynthesis" pathway, indicating their possible inducing role in cellular macromolecule damage, nerve signal transmission disturbance and energy metabolism disruption caused by oxidative stress. Importantly, fipronil sulfone and fipronil desulfinyl more strongly influenced lipid and amino acid metabolism, mainly reflected in the number of changed glycerophospholipids and differential metabolites associated with oxidative stress, including PS18:0/20:4, glutamate, phenylalanine and histidine for fipronil sulfone and PS18:0/20:4, glutamate, phenylalanine, serine and aspartic acid for fipronil desulfinyl. Therefore, the higher toxicity of fipronil desulfinyl and fipronil sulfone may be also related to oxidative stress. This study provides implications for risk assessment and toxic mechanism research on fipronil and its metabolites.
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Affiliation(s)
- Xiao Song
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xinlu Wang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Guangqin Liao
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yecan Pan
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Yongzhong Qian
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
| | - Jing Qiu
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, China; Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
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22
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Mahmoud YK, Ali AA, Abdelrazek HMA, Aldayel TS, Abdel-Daim MM, El-Menyawy MAI. Neurotoxic Effect of Fipronil in Male Wistar Rats: Ameliorative Effect of L-Arginine and L-Carnitine. BIOLOGY 2021; 10:biology10070682. [PMID: 34356537 PMCID: PMC8301478 DOI: 10.3390/biology10070682] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Insecticides are widely used in agricultural and household environments. They induce wide range of deleterious effects. Fipronil is one of the most widely used phenylpyrazoles insecticides. The neurotoxic effect of such insecticide was tested in the present study with special emphasis on cognitive deficit as well as testing the possible ameliorative impacts of L-arginine and L-carnitine. The study proposed fipronil-induced cognitive deficit as a reflection to oxidative stress and neuro-inflammation. Moreover, L-arginine and L-carnitine exerted ameliorative influence on fipronil induced oxidative stress and neuro-inflammation. Therefore, L-arginine and L-carnitine can be considered as prospective candidates for mitigation of pesticide induced neurotoxicity especially in people with high-risk exposure to pesticide. Abstract The ameliorative effect of L-arginine (LA) and L-carnitine (LC) against fipronil (FPN)-induced neurotoxicity was explored. In this case, 36 adult male rats were randomly divided into six groups: group I received distilled water, group II received 500 mg/kg LA, group III received 100 mg/kg LC, group IV received 4.85 mg/kg FPN, group V received 4.85 mg/kg FPN and 500 mg/kg LA and group VI received 4.85 mg/kg FPN and 100 mg/kg LC for 6 weeks. Cognitive performance was assessed using Barnes maze (BM). Serum corticosterone, brain total antioxidant capacity (TAC), malondialdehyde (MDA) and dopamine were measured. Histopathology and immunohistochemistry of ionized calcium-binding adaptor (Iba-1), doublecortin (DCX) and serotonin (S-2A) receptors were performed. Fipronil induced noticeable deterioration in spatial learning and memory performance. In addition, FPN significantly (p < 0.05) diminished brain antioxidant defense system and dopamine coincide with elevated serum corticosterone level. Histopathological examination revealed degenerative and necrotic changes. Furthermore, Iba-1 and DCX were significantly expressed in cortex and hippocampus whereas S-2A receptors were significantly lowered in FPN group. However, administration of LA or LC alleviated FPN-induced deteriorations. In conclusion, LA and LC could be prospective candidates for mitigation of FPN-induced neurotoxicity via their antioxidant, anti-inflammatory and neuropotentiating effects.
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Affiliation(s)
- Yasmina K. Mahmoud
- Department of Biochemistry, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt;
| | - Ahmed A. Ali
- Hygiene, Zoonosis and Animal Behavior Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt;
| | - Heba M. A. Abdelrazek
- Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: ; Tel.: +2-012-23399477; Fax: +2-064-3207052
| | - Tahany Saleh Aldayel
- Nutrition and Food Science, Department of Physical Sport Sciences, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Mohamed M. Abdel-Daim
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt;
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Zhang Z, Wang Z, Li QX, Hua R, Wu X. Enantioselective metabolism of phenylpyrazole insecticides by rat liver microsomal CYP3A1, CYP2E1 and CYP2D2. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 176:104861. [PMID: 34119225 DOI: 10.1016/j.pestbp.2021.104861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/11/2021] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
The stereoselective difference of chiral pesticide enantiomers is an important factor of risk evaluation and the subject has received wide attention. In the present work, enantioselective metabolism of chiral phenylpyrazole insecticides including fipronil, ethiprole and flufiprole in rat liver microsomes was investigated in vitro. The result showed remarkable enantioselectivity for fipronil and ethiprole with the EF values of 0.11-0.58. The metabolite fipronil-sulfone was formed with the degradation of fipronil. R-Ethiprole to S-ethiprole transformation was observed, but not S-ethiprole to R-ethiprole. No enantioselective metabolism was observed for flufiprole with the EF values of 0.49-0.51. The enzymatic assays showed that the inhibition ratio of R-fipronil and S-ethiprole was 1.5-2.1times that of the corresponding enantiomers on CYP2E1 and CYP2D2 activity, leading to the enantioselective metabolism. The result of the homology modeling and molecular docking further revealed that S-fipronil (-7.56 kcal mol-1) and R-ethiprole (-6.45 kcal mol-1) performed better binding with CYP2E1 and CYP2D2, respectively. The results provided useful data for the risk evaluation of chiral phenylpyrazole insecticides on ecological safety and human health.
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Affiliation(s)
- Zhaoxian Zhang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, China
| | - Zhiqiang Wang
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East-West Road, Honolulu, HI 96822, USA
| | - Rimao Hua
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, China
| | - Xiangwei Wu
- College of Resources and Environment, Anhui Agricultural University, Key Laboratory of Agri-food Safety of Anhui Province, Hefei 230036, China.
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24
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Liu J, Lu H, Hua X, Gu Y, Pan W, Dong D, Liang D. Direct analysis of metabolites in the liver tissue of zebrafish exposed to fiproles by internal extractive electrospray ionization mass spectrometry. Analyst 2021; 146:4480-4486. [PMID: 34160503 DOI: 10.1039/d1an00490e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Exploring the metabolic disturbance of fipronil and its derivatives in aquatic organisms may provide a more comprehensive understanding of the impact of fipronil on the ecological environment. In this work, internal extractive electrospray ionization mass spectrometry (iEESI-MS) was used to directly analyze metabolites in the liver tissue of zebrafish exposed to fipronil and its three derivatives. Partial least squares-discriminant analysis (PLS-DA) revealed that 32 signals were considered as differential signals in zebrafish after the exposure treatment of fipronil and its derivatives, including phosphatidylcholines (PCs), lysophosphatidylcholines (LPCs), phosphatidylethanolamines (PEs), fatty acids and so on. The pathway analysis result showed that both fipronil and its derivatives have a significant impact on the glycerophospholipid metabolism of zebrafish. Besides, the intensities of PC signals in the liver samples of each group showed such a trend: mixed fiprole exposed group > fipronil sulfone exposed group ≈ fipronil sulfide exposed group > fipronil exposed group > fipronil desulfinyl exposed group > control group, indicating that mixed exposure of fipronil and its derivatives exhibited more significant metabolic disturbance in zebrafish. Taken together, iEESI-MS is applied to environmental toxicology and investigating the metabolic disturbance induced by fipronil and its derivatives in aquatic organisms, providing a new analytical method for this field.
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Affiliation(s)
- Jun Liu
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
| | - Haiyan Lu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Changchun, 130012, PR China
| | - Xiuyi Hua
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
| | - Yu Gu
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
| | - Wenhao Pan
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
| | - Deming Dong
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
| | - Dapeng Liang
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, Changchun, 130012, PR China. and College of New Energy and Environment, Jilin University, Changchun, 130012, PR China
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25
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Suzuki T, Hirai A, Khidkhan K, Nimako C, Ichise T, Takeda K, Mizukawa H, Nakayama SMM, Nomiyama K, Hoshi N, Maeda M, Hirano T, Sasaoka K, Sasaki N, Takiguchi M, Ishizuka M, Ikenaka Y. The effects of fipronil on emotional and cognitive behaviors in mammals. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 175:104847. [PMID: 33993965 DOI: 10.1016/j.pestbp.2021.104847] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
Fipronil is a phenylpyrazole insecticide that is widely used as a pesticide and a veterinary drug, although studies suggest that it could be toxic to mammals. The objectives of this study were to examine the pharmacokinetic profile of fipronil in mice, dogs, and cats, and to evaluate its effects on emotional and cognitive behaviors of dogs and cats using the data obtained from mice. The assessment of in vivo kinetics of fipronil was conducted in mice and dogs. We also performed behavioral tests (elevated plus-maze and Y-maze) and measured the levels of neurotransmitters in mice exposed to fipronil. In addition, the in vitro metabolism of fipronil were evaluated using liver microsomes of rats, mice, dogs, and cats. The results revealed that fipronil is distributed throughout the body (blood, brain, adipose tissue, and liver) of mice after dermal application. It was metabolized to fipronil sulfone primarily in the liver. The data on kinetics show that both fipronil and fipronil sulfone have a longer half-life in dogs and cats than in mice. The behavioral tests indicated that fipronil and fipronil sulfone could affect emotional and cognitive behaviors and alter the levels of neurotransmitters (dopamine in the striatum and serotonin in the hippocampus) in mice. Furthermore, we found that dogs and cats have a low ability to metabolize fipronil than mice and rats. However, further comprehensive studies are needed to determine whether fipronil affects the emotional and cognitive behaviors when administered to dogs and cats. To the best of our knowledge, this is the first study to examine the pharmacokinetic data and verify the effects of fipronil on emotional and cognitive behaviors of dogs and cats using the data obtained from mice.
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Affiliation(s)
- Tomohiro Suzuki
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Anri Hirai
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Kraisiri Khidkhan
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan; Department of Pharmacology, Faculty of Veterinary Medicine, Kasetsart University, No. 50 Ngamwongwan Road, Lat Yao Subdistrict, Chatuchak District, Bangkok 10900, Thailand
| | - Collins Nimako
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Takahiro Ichise
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Kazuki Takeda
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University, Higashi23-35-1, Towada, Aomori 034-8628, Japan
| | - Hazuki Mizukawa
- Department of Science and Technology for Biological Resources and Environment, Graduate School of Agriculture, Ehime University, Tarumi 3-5-7, Matsuyama 790-8566, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Kei Nomiyama
- Center for Marine Environmental Studies, Ehime University, Bunkyo-cho 2-5, Matsuyama 790-8577, Japan
| | - Nobuhiko Hoshi
- Department of Animal Science, Graduate School of Agricultural Science, Kobe University 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Mizuki Maeda
- Department of Animal Science, Graduate School of Agricultural Science, Kobe University 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Tetsushi Hirano
- Division of Drug and Structural Research, Life Science Research Center, University of Toyama, Sugitani 2630, Toyama 930-0194, Japan
| | - Kazuyoshi Sasaoka
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Noboru Sasaki
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Mitsuyoshi Takiguchi
- Laboratory of Veterinary Internal Medicine, Department of Veterinary Clinical Science, Graduate School of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Kita-18 Nishi-9, Kita-ku, Sapporo 060-0818, Japan; One Health Research Center, Hokkaido University.
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26
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Souders CL, Rushin A, Sanchez CL, Toth D, Adamovsky O, Martyniuk CJ. Mitochondrial and transcriptome responses in rat dopaminergic neuronal cells following exposure to the insecticide fipronil. Neurotoxicology 2021; 85:173-185. [PMID: 34044035 DOI: 10.1016/j.neuro.2021.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 05/11/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
The phenylpyrazole fipronil is an insecticide that inhibits γ -amino-butyric acid (GABA) ionotropic receptors in the central nervous system. Experimental evidence suggests that fipronil acts as a neurotoxin and it is implicated in neurodegenerative diseases; however, the mechanisms of neurotoxicity are not fully elucidated. The objective of this study was to quantify mechanisms of fipronil-induced neurotoxicity in dopamine cells. Rat primary immortalized mesencephalic dopaminergic cells (N27) were treated with fipronil (0.25 up to 500 μM depending on the assay). We measured endpoints related to mitochondrial bioenergetics, mitophagy, mitochondrial membrane potential, and ATP production in addition to discerning transcriptome responses to the pesticide. Fipronil reduced cell viability at 500 μM after 24 h exposure and caspase 3/7 activity was significant increased after 6 and 12 h by 250 and 500 μM fipronil. Subsequent endpoints were thus assessed at concentrations that were below cytotoxicity. We measured oxidative respiration of N27 cells following a 24 h exposure to one dose of either 0.25, 2.5, 25, or 50 μM fipronil. Oxygen consumption rates (OCR) were not different between vehicle-control and 0.25 or 2.5 μM fipronil treatments, but there was a ∼40-60 % reduction in basal respiration, as well as reduced oligomycin-induced ATP production at 50 μM. The reduction in OCR is hypothesized to be related to lower mitochondrial mass due to mitophagy. Mitochondrial membrane potential was also sensitive to fipronil, and it was compromised at concentrations of 2.5 μM and above. To further elucidate the mechanisms linked to neurotoxicity, we conducted transcriptomics in dopamine cells following treatment with 25 μM fipronil. Fipronil suppressed transcriptional networks associated with mitochondria (damage, depolarization, permeability, and fission), consistent with its effects on mitochondrial membrane potential. Altered gene networks also included those related to Alzheimer disease, inflammatory disease, nerve fiber degeneration, and neurofibrillary tangles. This study clarifies molecular targets of fipronil-induced neurotoxicity and supports, through multiple lines of evidence, that fipronil acts as a mitochondrial toxicant in dopamine cells. This is relevant to neurodegenerative diseases like Parkinson's disease as exposure to fipronil is associated with the progressive loss of nigrostriatal dopaminergic neurons in rodents.
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Affiliation(s)
- Christopher L Souders
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Anna Rushin
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Christina L Sanchez
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Darby Toth
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Ondrej Adamovsky
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA; Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, Brno, Czech Republic
| | - Christopher J Martyniuk
- Department of Physiological Sciences and Center for Environmental and Human Toxicology, University of Florida Genetics Institute, Interdisciplinary Program in Biomedical Sciences Neuroscience, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA.
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27
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Elshony N, Nassar AMK, El-Sayed YS, Samak D, Noreldin A, Wasef L, Saleh H, Elewa YHA, Tawfeek SE, Saati AA, Batiha GES, Tomczyk M, Umezawa M, Shaheen HM. Ameliorative Role of Cerium Oxide Nanoparticles Against Fipronil Impact on Brain Function, Oxidative Stress, and Apoptotic Cascades in Albino Rats. Front Neurosci 2021; 15:651471. [PMID: 34054412 PMCID: PMC8163223 DOI: 10.3389/fnins.2021.651471] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 04/13/2021] [Indexed: 01/09/2023] Open
Abstract
Fipronil (FIP) is an N-phenylpyrazole insecticide that is used extensively in public health and agriculture against a wide range of pests. Exposure to FIP is linked to negative health outcomes in humans and animals including promoting neuronal cell injury, which results in apoptosis through the production of reactive oxygen species (ROS). Therefore, the purpose of the current study was to investigate the neuroprotective effects of cerium oxide nanoparticles (CeNPs) on neuronal dysfunction induced by FIP in albino rats. Male rats were randomly classified into four groups: control, FIP (5 mg/kg bwt), CeNPs (35 mg/kg bwt), and FIP + CeNPs (5 (FIP) + 35 (CeNPs) mg/kg bwt), which were treated orally once daily for 28 consecutive days. Brain antioxidant parameters, histopathology, and mRNA expression of genes related to brain function were evaluated. The results revealed oxidative damage to brain tissues in FIP-treated rats indicated by the elevated levels of malondialdehyde (MDA) and nitric oxide (NO) levels and reduced activities of antioxidant enzymes such as superoxide dismutase (SOD) and glutathione peroxidase (GPx). On the other hand, the FIP’s group that was treated with CeNPs showed decrease in MDA and NO levels and increase in SOD and GPx enzymes activity. Besides, FIP-treated rats showed decreased butyrylcholinesterase (BuChE) activity in comparison to the FIP + CeNPs group. Moreover, FIP caused up-regulation of the expression of neuron-specific enolase (NSE), caspase-3, and glial fibrillary acidic protein (GFAP) but down-regulation of B-cell lymphoma-2 (BCL-2) expression. But the FIP + CeNPs group significantly down-regulated the GFAP, NSE, and caspase-3 and up-regulated the gene expression of BCL-2. Additionally, the FIP-treated group of rats had clear degenerative lesions in brain tissue that was reversed to nearly normal cerebral architecture by the FIP + CeNPs treatment. Immunohistochemical examination of brain tissues of rats-treated with FIP showed abundant ionized calcium-binding adaptor molecule 1 (Iba-1) microglia and caspase-3 and apoptotic cells with nearly negative calbindin and synaptophysin reaction, which were countered by FIP + CeNPs treatment that revealed a critical decrease in caspase-3, Iba-1 reaction with a strong calbindin positive reaction in most of the Purkinje cells and strong synaptophysin reaction in the cerebrum and cerebellum tissues. Based on reported results herein, CeNPs treatment might counteract the neurotoxic effect of FIP pesticide via an antioxidant-mediated mechanism.
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Affiliation(s)
- Norhan Elshony
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Atef M K Nassar
- Department of Plant Protection, Faculty of Agriculture, Damanhour University, Damanhour, Egypt
| | - Yasser S El-Sayed
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Dalia Samak
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ahmed Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Lamiaa Wasef
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Hamida Saleh
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Yaser H A Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.,Laboratory of Anatomy, Department of Biomedical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Shereen E Tawfeek
- Department of Human Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.,Department of Anatomy, College of Medicine, Jouf University, Sakaka, Saudi Arabia
| | - Abdullah A Saati
- Department of Community Medicine and Pilgrims Healthcare, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Michał Tomczyk
- Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Białystok, Białystok, Poland
| | - Masakazu Umezawa
- Department of Materials Science and Technology, Faculty of Industrial Science and Technology Soga Laboratory, Tokyo University of Science, Tokyo, Japan
| | - Hazem M Shaheen
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
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28
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Schmitz A, Dempewolf S, Tan S, Bicker G, Stern M. Developmental Neurotoxicity of Fipronil and Rotenone on a Human Neuronal In Vitro Test System. Neurotox Res 2021; 39:1189-1202. [PMID: 33871813 PMCID: PMC8275550 DOI: 10.1007/s12640-021-00364-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/07/2021] [Accepted: 04/13/2021] [Indexed: 11/26/2022]
Abstract
Pesticide exposure during in utero and early postnatal development can cause a wide range of neurological defects. However, relatively few insecticides have been recognized as developmental neurotoxicants, so far. Recently, discovery of the insecticide, fipronil, in chicken eggs has raised public concern. The status of fipronil as a potential developmental neurotoxicant is still under debate. Whereas several in vivo and in vitro studies suggest specific toxicity, other in vitro studies could not confirm this concern. Here, we tested fipronil and its main metabolic product, fipronil sulfone both at concentrations between 1.98 and 62.5 µM, alongside with the established developmental neurotoxicant, rotenone (0.004-10 µM) in vitro on the human neuronal precursor cell line NT2. We found that rotenone impaired all three tested DNT endpoints, neurite outgrowth, neuronal differentiation, and precursor cell migration in a dose-dependent manner and clearly separable from general cytotoxicity in the nanomolar range. Fipronil and fipronil sulfone specifically inhibited cell migration and neuronal differentiation, but not neurite outgrowth in the micromolar range. The rho-kinase inhibitor Y-27632 counteracted inhibition of migration for all three compounds (EC50 between 12 and 50 µM). The antioxidant, n-acetyl cysteine, could ameliorate the inhibitory effects of fipronil on all three tested endpoints (EC 50 between 84 and 164 µM), indicating the involvement of oxidative stress. Fipronil sulfone had a stronger effect than fipronil, confirming the importance to test metabolic products alongside original pesticides. We conclude that in vitro fipronil and fipronil sulfone display specific developmental neurotoxicity on developing human model neurons.
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Affiliation(s)
- Anne Schmitz
- Institute of Physiology and Cell Biology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173, Hannover, Germany
| | - Silke Dempewolf
- Institute of Physiology and Cell Biology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173, Hannover, Germany
| | - Saime Tan
- Institute of Physiology and Cell Biology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173, Hannover, Germany
| | - Gerd Bicker
- Institute of Physiology and Cell Biology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173, Hannover, Germany
| | - Michael Stern
- Institute of Physiology and Cell Biology, University of Veterinary Medicine Hannover, Bischofsholer Damm 15/102, 30173, Hannover, Germany.
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29
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Yao J, Wang Z, Guo L, Xu X, Liu L, Kuang H, Xu C. Lateral flow immunoassay for the simultaneous detection of fipronil and its metabolites in food samples. Food Chem 2021; 356:129710. [PMID: 33836353 DOI: 10.1016/j.foodchem.2021.129710] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
We developed a sensitive and rapid lateral flow immunochromatographic (LFI) assay for the simultaneous detection of fipronil and its metabolites in eggs and cucumbers using gold nanoparticle (GNP)-labeled monoclonal antibodies (mAbs). Anti-fipronil mAbs (1B6) were produced using two haptens and identified by heterologous indirect competitive enzyme-linked immunosorbent assay (icELISA) with half maximal inhibitory concentration (IC50) and limit of detection (LOD) values of 0.46 ± 0.07 and 0.05 ± 0.01 ng mL-1, respectively. The developed LFI strip showed high sensitivity and specificity in the detection of fipronil with cut-off and visual limit of detection (vLOD) values of 10 and 0.25 ng mL-1, respectively. Furthermore, the application of LFI in the detection of fipronil-spiked egg and cucumber samples was validated by liquid chromatography tandem mass spectrometry (LC-MS/MS). Our developed LFI assay is suitable for detection of fipronil and its metabolites in real samples.
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Affiliation(s)
- Jingjing Yao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Zhongxing Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Lingling Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liqiang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China; International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
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30
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Canton L, Canton C, Ceballos L, Domínguez P, Rodríguez J, Lanusse C, Alvarez L, Moreno L. Oral and topical extra-label administration of fipronil to laying hens: Assessment of the egg residue patterns. J Vet Pharmacol Ther 2021; 44:808-819. [PMID: 33763877 DOI: 10.1111/jvp.12965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 10/14/2020] [Accepted: 02/19/2021] [Indexed: 11/28/2022]
Abstract
This experimental work reproduces the fipronil extra-label administration performed by producers in laying hens. The scientific goal was to characterize the residual concentrations in eggs from treated hens and suggest the withdrawal periods that should be respected to avoid risk for consumers. Thirty-four laying hens were allocated into two groups: Group A was treated with fipronil in feed, two single doses of 1 mg kg-1 day-1 ; Group B was administered a single dose of 1 mg kg-1 by the topical route. Fipronil egg residues were quantified by HPLC-MS/MS. Fipronil and its sulphone metabolite (fipronil-SO2 ) were measured in egg after both treatments. The highest egg residual profile was always for fipronil-SO2 . Mean maximum egg concentrations (Cmax ) of 228.5 ± 79.8 ng/g (fipronil) and 1,849 ± 867 ng/g (fipronil-SO2 ) were found after fipronil administration in feed. The lowest residual levels were quantified after the topical treatment with Cmax of 27.1 ± 4.9 and 163 ± 26 ng/g for fipronil and fipronil-SO2 . Mean fipronil marker residues and established MRLs allowed calculating the withdrawal periods, the shortest being 74 days after topical administration. Such a long withdrawal period is difficult to meet in egg production systems. Thus, the extra-label use of fipronil in laying hens should not be recommended under any circumstances.
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Affiliation(s)
- Lucila Canton
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Candela Canton
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Laura Ceballos
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Paula Domínguez
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - José Rodríguez
- Instituto Nacional de Tecnología Agropecuaria (INTA, Balcarce, Argentina
| | - Carlos Lanusse
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Luis Alvarez
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
| | - Laura Moreno
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN, UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina
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The potential ameliorative impacts of cerium oxide nanoparticles against fipronil-induced hepatic steatosis. Sci Rep 2021; 11:1310. [PMID: 33446707 PMCID: PMC7809457 DOI: 10.1038/s41598-020-79479-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023] Open
Abstract
Fipronil (FIP) is a phenylpyrazole insecticide that is commonly used in agricultural and veterinary fields for controlling a wide range of insects, but it is a strong environmentally toxic substance. Exposure to FIP has been reported to increase the hepatic fat accumulation through altered lipid metabolism, which ultimately can contribute to nonalcoholic fatty liver disease (NAFLD) development. The present study aimed to examine the function of cerium oxide nanoparticles (CeNPs) in protecting against hepatotoxicity and lipogenesis induced by FIP. Twenty-eight male albino rats were classified into four groups: FIP (5 mg/kg/day per os), CTR, CeNPs (35 mg/kg/day p.o.), and FIP + CeNPs (5 (FIP) + 35 (CeNPs) mg/kg/day p.o.) for 28 consecutive days. Serum lipid profiles, hepatic antioxidant parameters and pathology, and mRNA expression of adipocytokines were assessed. The results revealed that FIP increased cholesterol, height-density lipoprotein, triacylglyceride, low-density lipoprotein (LDL-c), and very-low-density lipoprotein (VLDL-c) concentrations. It also increased nitric oxide (NO) and malondialdehyde (MDA) hepatic levels and reduced glutathione peroxidase (GPx) and superoxide dismutase (SOD) enzyme activities. Additionally, FIP up-regulated the fatty acid-binding protein (FABP), acetyl Co-A carboxylase (ACC1), and peroxisome proliferator-activated receptor-alpha (PPAR-α). Immunohistochemically, a strong proliferation of cell nuclear antigen (PCNA), ionized calcium-binding adapter molecule 1 (Iba-1), cyclooxygenase-2 (COX-2) reactions in the endothelial cells of the hepatic sinusoids, and increased expression of caspase3 were observed following FIP intoxication. FIP also caused histological changes in hepatic tissue. The CeNPs counteracted the hepatotoxic effect of FIP exposure. So, this study recorded an ameliorative effect of CeNPs against FIP-induced hepatotoxicity.
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Sun C, Nile SH, Zhang Y, Qin L, El-Seedi HR, Daglia M, Kai G. Novel Insight into Utilization of Flavonoid Glycosides and Biological Properties of Saffron ( Crocus sativus L.) Flower Byproducts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10685-10696. [PMID: 32924469 DOI: 10.1021/acs.jafc.0c04076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Saffron (Crocus sativus L.) byproducts are considered as a cheap source of bioactive polyphenolics endowed with potential antioxidant effects. The saffron biowaste is utilized for extraction of flavonoid glycosides and their potential biological properties. The total amount of polyphenolics and polysaccharides was found to be higher in the tepal than in the stamen. The bioactive compounds quercetin-3-O-sophoroside (Q-3-sop) and kaempferol-3-O-sophoroside (K-3-sop) were analyzed using high-performance liquid chromatography equipped with a photodiode array detector (HPLC-PDA) and identified by high-resolution mass spectrometry (HRMS) and nuclear magnetic resonance (NMR). The antioxidant effects were studied using 2,2 diphenyl-2-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), ferric ion reducing antioxidant power (FRAP), and oxygen radical absorbance capacity (ORAC); Q-3-sop showed stronger antioxidant effects compared to K-3-sop, crocin-I, and crocin-II. Furthermore, Q-3-sop also inhibited cell apoptosis caused by H2O2 by reducing the levels of cellular reactive oxygen species (ROS). In terms of cytogenetic effects, Q-3-sop revealed no cytogenic effects on onion root meristem cells but chromosomal aberration was observed at the highest dose (200 ppm). Thus, saffron byproducts and its flavonoids could be utilized as natural antioxidant agents with no cytogenetic effects.
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Affiliation(s)
- Chengtao Sun
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Shivraj Hariram Nile
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Yiting Zhang
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Luping Qin
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
| | - Hesham R El-Seedi
- Pharmacognosy Group, Department of Medicinal Chemistry, Uppsala University, Biomedical Centre, Box 574, SE-751 23 Uppsala, Sweden
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Maria Daglia
- Department of Pharmacy, University of Naples Federico II, Naples 80138, Italy
| | - Guoyin Kai
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China
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Zhang Z, Zhang J, Zhao X, Gao B, He Z, Li L, Shi H, Wang M. Stereoselective uptake and metabolism of prothioconazole caused oxidative stress in zebrafish (Danio rerio). JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122756. [PMID: 32353726 DOI: 10.1016/j.jhazmat.2020.122756] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/15/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Prothioconazole (PTA) is a novel, broad-spectrum, chiral triazole fungicide that is mainly used to prevent and control the disease of cereal crops. However, the adverse effects of PTA and its major metabolite on nontarget organisms have aroused wide concern. In the present work, the acute toxic of the metabolite prothioconazole-desthio (PTA-desthio), with an LC50 of 1.31 mg L-1, was 3.5-fold more toxic than the parent compound, indicating that the metabolism of PTA in zebrafish was toxic. The stereoselective uptake and metabolism of PTA and PTA-desthio in zebrafish was firstly investigated using LC-MS/MS. Remarkable enantioselectivity was observed: S-PTA and S-PTA-desthio were preferentially uptake with the uptake rate constants of 8.22 and 8.15 d-1 at exposure concentration of 0.5 mg L-1, respectively, and the R-PTA-desthio were preferentially metabolized. PTA-desthio was rapidly formed during the uptake processes. The antioxidant enzyme activities in the zebrafish changed significantly, and these effects were reversible. A metabolic pathway including 13 phase I metabolites and 2 phase II metabolites was firstly proposed. A glucuronic acid conjugate and sulfate conjugate were observed in zebrafish. The results of this work provide information that highlights and can help mitigate the potential toxicity of PTA to the ecological environment and humans health.
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Affiliation(s)
- Zhaoxian Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Jing Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Xuejun Zhao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Zongzhe He
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Lianshan Li
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Ministry of Education, Nanjing, 20095, PR China.
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Bevilaqua F, Sachett A, Chitolina R, Garbinato C, Gasparetto H, Marcon M, Mocelin R, Dallegrave E, Conterato G, Piato A, Siebel AM. A mixture of fipronil and fungicides induces alterations on behavioral and oxidative stress parameters in zebrafish. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:140-147. [PMID: 31865514 DOI: 10.1007/s10646-019-02146-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
Pesticide commercial mixtures, including the insecticide fipronil and the fungicides pyraclostrobin and methyl-thiophanate, have been used in concomitant pest control, facilitating agricultural management. Their widespread use can lead to soil and water contamination and potentially induce damages in the ecosystem, producing toxic effects in non-target organisms. Despite their toxicological potential, their effects on behavioral and biochemical parameters are not well understood. Here we investigated the effects of the mixture of fipronil and fungicides (MFF) pyraclostrobin and methyl- thiophanate on behavioral and biochemical parameters of oxidative stress in adult zebrafish. Animals exposed to the highest MFF tested concentration showed a decrease in the total distance traveled and in the number of crossings in the different zones of the tank. Furthermore, animals exposed to highest MFF tested concentration spent more time in water surface. In addition, our data showed that the exposure to this preparation promoted a decrease in non-protein thiol content as well as in catalase activity. Finally, pesticide exposure induced an increase in the superoxide dismutase/catalase ratio. Our results indicate that alterations in behavioral and oxidative parameters are involved in MFF toxicity in zebrafish. The antioxidant mechanisms analyzed were altered in concentrations that did not affect zebrafish behavior. Therefore, the assessment of oxidative stress parameters in zebrafish brains could be very useful to detect the early effects of environmental exposure to the MFF.
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Affiliation(s)
- Fernanda Bevilaqua
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Adrieli Sachett
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rafael Chitolina
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristiane Garbinato
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Henrique Gasparetto
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil
| | - Matheus Marcon
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ricieri Mocelin
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Eliane Dallegrave
- Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Greicy Conterato
- Laboratório de Fisiologia da Reprodução Animal, Departamento de Agricultura, Biodiversidade e Floresta, Universidade Federal de Santa Catarina, Campus de Curitibanos, Curitibanos, SC, Brazil
| | - Angelo Piato
- Laboratório de Psicofarmacologia e Comportamento, Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Anna M Siebel
- Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-Graduação em Ciências Ambientais, Universidade Comunitária da Região de Chapecó, Chapecó, SC, Brazil.
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Seydi E, Mehrpouya L, Sadeghi H, Rahimi S, Pourahmad J. Toxicity of fipronil on rat heart mitochondria. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1700382] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Enayatollah Seydi
- Department of Occupational Health and Safety Engineering, School of Health, Alborz University of Medical Sciences, Karaj, Iran
- Research Center for Health, Safety and Environment, Alborz University of Medical Sciences, Karaj, Iran
| | - Leila Mehrpouya
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hadiseh Sadeghi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Rahimi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Jalal Pourahmad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Leemans M, Couderq S, Demeneix B, Fini JB. Pesticides With Potential Thyroid Hormone-Disrupting Effects: A Review of Recent Data. Front Endocrinol (Lausanne) 2019; 10:743. [PMID: 31920955 PMCID: PMC6915086 DOI: 10.3389/fendo.2019.00743] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 10/14/2019] [Indexed: 12/26/2022] Open
Abstract
Plant Protection Products, more commonly referred to as pesticides and biocides, are used to control a wide range of yield-reducing pests including insects, fungi, nematodes, and weeds. Concern has been raised that some pesticides may act as endocrine disrupting chemicals (EDCs) with the potential to interfere with the hormone systems of non-target invertebrates and vertebrates, including humans. EDCs act at low doses and particularly vulnerable periods of exposure include pre- and perinatal development. Of critical concern is the number of pesticides with the potential to interfere with the developing nervous system and brain, notably with thyroid hormone signaling. Across vertebrates, thyroid hormone orchestrates metamorphosis, brain development, and metabolism. Pesticide action on thyroid homeostasis can involve interference with TH production and its control, displacement from distributor proteins and liver metabolism. Here we focused on thyroid endpoints for each of the different classes of pesticides reviewing epidemiological and experimental studies carried out both in in vivo and in vitro. We conclude first, that many pesticides were placed on the market with insufficient testing, other than acute or chronic toxicity, and second, that thyroid-specific endpoints for neurodevelopmental effects and mixture assessment are largely absent from regulatory directives.
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Affiliation(s)
- Michelle Leemans
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, Paris, France
| | | | | | - Jean-Baptiste Fini
- Muséum National d'Histoire Naturelle, CNRS UMR 7221, Laboratoire Physiologie moléculaire de l'adaptation, Paris, France
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dos Santos GCM, Rosado LHG, Alves MCC, de Paula Lima I, Ferreira TP, Borges DA, de Oliveira PC, de Sousa Magalhães V, Scott FB, Cid YP. Fipronil Tablets: Development and Pharmacokinetic Profile in Beagle Dogs. AAPS PharmSciTech 2019; 21:9. [PMID: 31797083 DOI: 10.1208/s12249-019-1571-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/15/2019] [Indexed: 11/30/2022] Open
Abstract
Increased human-pet interactions have led to concerns related to the prevention and treatment of ectoparasite infestations. Fipronil (FIP) is a widely used ectoparasiticide in veterinary medicine available for topical administration; however, its use may cause damage to the owners and the environment. The aim of the study was to develop immediate-release tablets of FIP, as well as to determine its pharmacokinetic properties after oral administration in beagle dogs. The prepared FIP tablets were evaluated for pre-compression (angle of repose, speed flow, and Carr's index) and post-compression (weight variation, friability, thickness, hardness, disintegration time, and dissolution rate) parameters. Orally administered FIP at a dose of 2 mg/kg was rapidly absorbed with Cmáx of 3.13 ± 1.39 μg/mL at 1.83 ± 0.40 h post treatment (P.T.) and metabolized with 1.27 ± 1.04 μg/mL at 2.33 ± 0.82 h P.T. for fipronil sulfone (SULF) (the primary metabolite). The elimination of FIP and SULF occurred slowly and had maintained quantifiable plasma levels in the blood for up to 28 days P.T. The goal of the study is aligned with the concept of One Health, which aims to collaboratively achieve the best health for people, animals, and the environment. Therefore, the use of FIP tablets for the control of ectoparasites in dogs may be a safer alternative for owners and the environment.
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Jeon J, Hollender J. In vitro biotransformation of pharmaceuticals and pesticides by trout liver S9 in the presence and absence of carbamazepine. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109513. [PMID: 31421535 DOI: 10.1016/j.ecoenv.2019.109513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/29/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
The aim of the present study was to develop (i) a technique for identifying metabolites of organic contaminants by using an in vitro system of trout S9 and liquid chromatography-high-resolution mass spectrometry-based identification method and (ii) to apply this technique to identify the interactive potential of carbamazepine on the formation rate of other metabolites. The pharmaceuticals carbamazepine and propranolol and the pesticides azoxystrobin, diazinon, and fipronil were selected as test contaminants. As a result, a total of ten metabolites were identified for the five parent substances, six of which were confirmed using reference standards. Metabolic reactions included hydroxylation, epoxidation, S-oxidation, and dealkylation. The metabolic transformation rate ranged from 0.2 to 3.5 pmol/mg protein/min/μmol substrate. In the binary exposure experiment with increasing carbamazepine concentration, the formation rates of diazinon and fipronil metabolites (MDI2 and MFP2, respectively) increased, while formation of metabolites of propranolol and azoxystrobin (MPR1, MPR2, MPR3, and MAZ1) slowed down. Meanwhile, S9 pre-exposed to carbamazepine produced diazoxon, a toxic metabolite of diazinon, and pyrimidinol, a less toxic metabolite, more rapidly. These results suggest that carbamazepine, a perennial environmental pollutant, might modulate the toxicity of other substances such as diazinon but further in vivo studies are needed.
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Affiliation(s)
- Junho Jeon
- Graduate School of FEED of Eco-Friendly Offshore Structure, Changwon National University, Changwon, Gyeongsangnamdo, 51140, South Korea; School of Civil, Environmental and Chemical Engineering, Changwon National University, Changwon, Gyeongsangnamdo, 51140, South Korea; Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland.
| | - Juliane Hollender
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland; Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, CH-8092, Zürich, Switzerland
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Kanat ÖN, Selmanoğlu G. Neurotoxic Effect of Fipronil in Neuroblastoma SH-SY5Y Cell Line. Neurotox Res 2019; 37:30-40. [DOI: 10.1007/s12640-019-00093-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/28/2019] [Accepted: 07/26/2019] [Indexed: 01/29/2023]
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40
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Cam M, Durieu E, Bodin M, Manousopoulou A, Koslowski S, Vasylieva N, Barnych B, Hammock BD, Bohl B, Koch P, Omori C, Yamamoto K, Hata S, Suzuki T, Karg F, Gizzi P, Erakovic Haber V, Bencetic Mihaljevic V, Tavcar B, Portelius E, Pannee J, Blennow K, Zetterberg H, Garbis SD, Auvray P, Gerber H, Fraering J, Fraering PC, Meijer L. Induction of Amyloid-β42 Production by Fipronil and Other Pyrazole Insecticides. J Alzheimers Dis 2019; 62:1663-1681. [PMID: 29504531 DOI: 10.3233/jad-170875] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Generation of amyloid-β peptides (Aβs) by proteolytic cleavage of the amyloid-β protein precursor (AβPP), especially increased production of Aβ42/Aβ43 over Aβ40, and their aggregation as oligomers and plaques, represent a characteristic feature of Alzheimer's disease (AD). In familial AD (FAD), altered Aβ production originates from specific mutations of AβPP or presenilins 1/2 (PS1/PS2), the catalytic subunits of γ-secretase. In sporadic AD, the origin of altered production of Aβs remains unknown. We hypothesize that the 'human chemical exposome' contains products able to favor the production of Aβ42/Aβ43 over Aβ40 and shorter Aβs. To detect such products, we screened a library of 3500 + compounds in a cell-based assay for enhanced Aβ42/Aβ43 production. Nine pyrazole insecticides were found to induce a β- and γ-secretase-dependent, 3-10-fold increase in the production of extracellular Aβ42 in various cell lines and neurons differentiated from induced pluripotent stem cells derived from healthy and FAD patients. Immunoprecipitation/mass spectrometry analyses showed increased production of Aβs cleaved at positions 42/43, and reduced production of peptides cleaved at positions 38 and shorter. Strongly supporting a direct effect on γ-secretase activity, pyrazoles shifted the cleavage pattern of another γ-secretase substrate, alcadeinα, and shifted the cleavage of AβPP by highly purified γ-secretase toward Aβ42/Aβ43. Focusing on fipronil, we showed that some of its metabolites, in particular the persistent fipronil sulfone, also favor the production of Aβ42/Aβ43 in both cell-based and cell-free systems. Fipronil administered orally to mice and rats is known to be metabolized rapidly, mostly to fipronil sulfone, which stably accumulates in adipose tissue and brain. In conclusion, several widely used pyrazole insecticides enhance the production of toxic, aggregation prone Aβ42/Aβ43 peptides, suggesting the possible existence of environmental "Alzheimerogens" which may contribute to the initiation and propagation of the amyloidogenic process in sporadic AD.
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Affiliation(s)
- Morgane Cam
- ManRos Therapeutics, Centre de Perharidy, Roscoff, Bretagne, France
| | - Emilie Durieu
- ManRos Therapeutics, Centre de Perharidy, Roscoff, Bretagne, France
| | - Marion Bodin
- ManRos Therapeutics, Centre de Perharidy, Roscoff, Bretagne, France
| | - Antigoni Manousopoulou
- Faculty of Medicine, Cancer Sciences and Clinical and Experimental Medicine, University of Southampton, Southampton, UK
| | - Svenja Koslowski
- ManRos Therapeutics, Centre de Perharidy, Roscoff, Bretagne, France.,C.RIS Pharma, Parc Technopolitain, Atalante Saint Malo, Saint Malo, France
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA, USA
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, CA, USA
| | - Bettina Bohl
- Institute of Reconstructive Neurobiology, University of Bonn, Bonn, Germany
| | - Philipp Koch
- Institute of Reconstructive Neurobiology, University of Bonn, Bonn, Germany.,Central Institute of Mental Health, University of Heidelberg/ Medical, Faculty Mannheim and Hector Institut for Translational Brain Research (HITBR gGmbH), Mannheim, Germany
| | - Chiori Omori
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Department of Integrated Bioscience, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan
| | - Kazuo Yamamoto
- Department of Integrated Bioscience, Graduate School of Frontier Sciences, University of Tokyo, Kashiwa, Japan
| | - Saori Hata
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Toshiharu Suzuki
- Laboratory of Neuroscience, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Frank Karg
- HPC INTERNATIONAL SAS and Atlantis Développement SAS, Noyal-Châtillon sur Seiche, Saint-Erblon, France
| | - Patrick Gizzi
- Plate-forme TechMedILL, UMR 7242, ESBS - Pôle API, Illkirch cedex, France
| | | | | | | | - Erik Portelius
- Clinical Neurochemical Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Josef Pannee
- Clinical Neurochemical Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden
| | - Kaj Blennow
- Clinical Neurochemical Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden
| | - Henrik Zetterberg
- Clinical Neurochemical Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden.,Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Mölndal, Sweden.,Department of Molecular Neuroscience, UCL Institute of Neurology, Queen Square, London, UK.,UK Dementia Research Institute, London, UK
| | - Spiros D Garbis
- Faculty of Medicine, Cancer Sciences and Clinical and Experimental Medicine, University of Southampton, Southampton, UK
| | - Pierrick Auvray
- C.RIS Pharma, Parc Technopolitain, Atalante Saint Malo, Saint Malo, France
| | - Hermeto Gerber
- Foundation Eclosion, Switzerland.,Campus Biotech Innovation Park, Geneva, Switzerland.,Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Jeremy Fraering
- Foundation Eclosion, Switzerland.,Campus Biotech Innovation Park, Geneva, Switzerland
| | - Patrick C Fraering
- Foundation Eclosion, Switzerland.,Campus Biotech Innovation Park, Geneva, Switzerland
| | - Laurent Meijer
- ManRos Therapeutics, Centre de Perharidy, Roscoff, Bretagne, France
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41
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Jameel M, Alam MF, Younus H, Jamal K, Siddique HR. Hazardous sub-cellular effects of Fipronil directly influence the organismal parameters of Spodoptera litura. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:216-224. [PMID: 30710772 DOI: 10.1016/j.ecoenv.2019.01.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 01/15/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
Indiscriminate use of insecticides/pesticides affects the structure and function of the ecosystems. The present study was aimed to investigate the toxic potential of Fipronil (a second generation phenylpyrazole) using Spodoptera litura larvae (Lepidoptera: Noctuidae) as an experimental model. Commercial grade of Fipronil, an insecticide was fed (20-80 mg/L) to the 4th instar larvae of S. litura for 12-72 h and examined different molecular, biochemical and organismal parameters. We observed a significant dose- and time-dependent changes in the biochemical parameters such as Superoxide dismutase (SOD), Glutathione-S-transferase (GST), Catalase (CAT), level of 8-hydroxy 2'-deoxyguanosine (8-OHdG) and Thiobarbituric Acid Reactive Substances (TBARS) [Malondialdehyde (MDA) equivalent] in the exposed larvae. We also observed that Fipronil interacts with DNA. Next, we examined the influence of sub-cellular damages at the organismal level. The alterations in the parameter such as the delayed emergence of larvae, reduced fecundity, fertility and increased rate of malformation in pupae and adults indicate the sub-organismal damages influence at the organismal level. The findings of the present study suggest that discriminatory non-scientific use of insecticide/pesticide might influence the population dynamics of insects and in large ecosystem too and needs further thorough investigations.
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Affiliation(s)
- Mohd Jameel
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Md Fazle Alam
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Hina Younus
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, India
| | - Khowaja Jamal
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
| | - Hifzur R Siddique
- Department of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
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42
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Xu C, Niu L, Liu J, Sun X, Zhang C, Ye J, Liu W. Maternal exposure to fipronil results in sulfone metabolite enrichment and transgenerational toxicity in zebrafish offspring: Indication for an overlooked risk in maternal transfer? ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:876-884. [PMID: 31159137 DOI: 10.1016/j.envpol.2018.12.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/29/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
Ecotoxicological studies show the association between pesticide pollution and transgenerational toxicity in aquatic organisms. However, a less considered risk is that many pesticides can be metabolized and transferred to offspring as new toxicants. In this study, we used zebrafish to evaluate the maternal transfer risk of fipronil (FIP), which is a great threat to aquatic organisms with toxic metabolite formation. After 28-day exposure to environmentally relevant concentrations (1.0, 5.0 and 10.0 μg/L) of FIP in adult female zebrafish (F0), the toxicants off-loading and transgenerational toxicity in offspring were studied. High burdens of FIP and its sulfone metabolite were found in both F0 and the embryos (F1), resulting in increased CYP450 activity. The residual levels of the metabolite were higher than those of the parent compound. Chiral analysis further showed a preferential accumulation of S-enantiomer of FIP in both F0 and F1. Maternal exposure to FIP increased the malformation rate and decreased the swim speed in larvae. Additionally, after exposure, the levels of thyroid hormones (THs), including triiodothyronine (T3) and thyroxine (T4), decreased in both generations, particularly in the F1. Gene transcription expression along the hypothalamic-pituitary-thyroid (HPT) axis was also significantly affected. Maternal exposure to FIP increased sulfone metabolite enrichment and cause multiple toxic effects in F1. Findings from this study highlight the key role of biologically active product formation in the maternal transfer of pollutants and associated risk assessment.
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Affiliation(s)
- Chao Xu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Lili Niu
- College of Life and Environmental Sciences, Hangzhou Normal University, 310036, China; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jinsong Liu
- Zhejiang Environmental Monitoring Centre, Hangzhou, 310012, China
| | - Xiaohui Sun
- Zhejiang Environmental Monitoring Centre, Hangzhou, 310012, China
| | - Chaonan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jing Ye
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Weiping Liu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
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43
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Abdel-Daim MM, Dessouki AA, Abdel-Rahman HG, Eltaysh R, Alkahtani S. Hepatorenal protective effects of taurine and N-acetylcysteine against fipronil-induced injuries: The antioxidant status and apoptotic markers expression in rats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:2063-2073. [PMID: 30290348 DOI: 10.1016/j.scitotenv.2018.09.313] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/18/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
Fipronil (FPN), a commonly used phenylpyrazole pesticide can induce oxidative tissue damage following hazard usage. Due to the extensive household and commercial usage of FPN, its toxic effects on mammals received considerable attention. Finding the proper antioxidant that can overcome FPN-induced damage is essential. Therefore, the present study aimed to assess the hepatorenal ameliorative outcomes of N-acetyl cysteine (NAC) and taurine (TAU) against hepatorenal damage induced by FPN in male Wistar rats. Compared to control rats, oral FPN (at a dose of 19.4 mg kg-1 BW for five successive days) significantly increased serum activities (p ≤ 0.05) of alkaline phosphatase, lactate dehydrogenase and transaminases, in addition to total cholesterol, urea and creatinine levels. Moreover, FPN provoked oxidative damage indicated by increased malondialdehyde and nitric oxide formation and decreased glutathione concentration and activities of enzymatic antioxidants (superoxide dismutase, glutathione peroxidase and catalase) in the hepatic and renal tissues. Furthermore, FPN administration induced overexpression of the proapoptotic (Bax), while it downregulated the expression of the anti-apoptotic (Bcl-2) protein. Interestingly, oral administration of TAU (50 mg Kg-1 BW) and NAC (50 mg Kg-1 BW), alone or in combination, five days prior to and five days along with FPN administration, significantly ameliorated (p ≤ 0.05) and normalized the harmful effects of FPN on serum biomarkers of hepatorenal injury, lipid peroxidation and tissue antioxidants. In conclusion, TAU and NAC, alone or in combination, provided significant hepatorenal protection against oxidative stress and apoptosis induced by FPN.
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Affiliation(s)
- Mohamed M Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt.
| | - Amina A Dessouki
- Department of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Haidy G Abdel-Rahman
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Rasha Eltaysh
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Saad Alkahtani
- Department of Zoology, Science College, King Saud University, Riyadh 11451, Saudi Arabia
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44
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Kim YA, Yoon YS, Kim HS, Jeon SJ, Cole E, Lee J, Kho Y, Cho YH. Distribution of fipronil in humans, and adverse health outcomes of in utero fipronil sulfone exposure in newborns. Int J Hyg Environ Health 2019; 222:524-532. [PMID: 30718154 DOI: 10.1016/j.ijheh.2019.01.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/20/2019] [Accepted: 01/28/2019] [Indexed: 12/18/2022]
Abstract
Fipronil is a highly effective insecticide with extensive usages; however, its distribution and toxic/health effects in the human population after chronic exposure have not yet been clearly identified. Our objectives were to determine the levels of serum fipronil and fipronil sulfone, a primary fipronil metabolite, in a general and sensitive human population using a birth cohort of parent-infant triads in Korea. We further investigated whether in utero exposure to fipronil and fipronil sulfone can affect health outcomes in newborn infants. Blood and umbilical cord blood from 169 participants, 59 mother-neonate pairs and 51 matching biological fathers, were collected; serum fipronil and fipronil sulfone (both blood and cord blood) and serum thyroid hormones (cord blood) were measured. Demographic, physiological, behavioral, clinical, and socioeconomic data for each participant were collected via a one-on-one interview and a questionnaire survey. Fipronil sulfone was detected in the serum of mothers, fathers, and infantile cord blood, while fipronil itself was not. Maternal fipronil sulfone levels were correlated to those of matched biological fathers and newborn infants. Adjusted analyses identified significant associations between parental fipronil sulfone levels and household income. Infantile fipronil sulfone levels were significantly associated with both maternal and paternal levels as well as maternal pre-pregnant BMI. Furthermore, infantile fipronil sulfone levels were inversely associated with cord blood T3 and free T3 levels as well as 5-min Apgar scores of newborn infants. Serum fipronil sulfone was detected in a specific population of mother-neonate pairs and their matched biological fathers in a manner suggestive of regular exposure to fipronil among urban residents. The findings also suggest that serum fipronil sulfone placentally transfers to the fetus and affects infantile adverse health outcomes. This is a first of its kind study; therefore, future studies are warranted.
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Affiliation(s)
- Young Ah Kim
- Departments of Obstetrics and Gynecology, Inje University Ilsan Paik Hospital, Goyang-si, Gyeonggi-do, 10380, Republic of Korea
| | - Yeong Sook Yoon
- Departments of Family Medicine, Center for Health Promotion, Inje University Ilsan Paik Hospital, Goyang-si, Gyeonggi-do, 10380, Republic of Korea
| | - Hee Sun Kim
- Departments of Obstetrics and Gynecology, Inje University Ilsan Paik Hospital, Goyang-si, Gyeonggi-do, 10380, Republic of Korea
| | - Se Jeong Jeon
- Departments of Obstetrics and Gynecology, Inje University Ilsan Paik Hospital, Goyang-si, Gyeonggi-do, 10380, Republic of Korea
| | - Elizabeth Cole
- Department of Biomedical and Pharmaceutical Sciences, The University of Montana, Missoula, MT, 59812, USA
| | - Jeongsun Lee
- Department of Health, Environment and Safety, School of Human & Environmental Service, Eulji University, Seongnam-si, Gyeonggi-do, 13135, Republic of Korea
| | - Younglim Kho
- Department of Health, Environment and Safety, School of Human & Environmental Service, Eulji University, Seongnam-si, Gyeonggi-do, 13135, Republic of Korea.
| | - Yoon Hee Cho
- Department of Biomedical and Pharmaceutical Sciences, The University of Montana, Missoula, MT, 59812, USA.
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45
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Wang K, Vasylieva N, Wan D, Eads DA, Yang J, Tretten T, Barnych B, Li J, Li QX, Gee SJ, Hammock BD, Xu T. Quantitative Detection of Fipronil and Fipronil-Sulfone in Sera of Black-Tailed Prairie Dogs and Rats after Oral Exposure to Fipronil by Camel Single-Domain Antibody-Based Immunoassays. Anal Chem 2019; 91:1532-1540. [PMID: 30521755 PMCID: PMC7144541 DOI: 10.1021/acs.analchem.8b04653] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The insecticide fipronil can be metabolized to its sulfone in mammalian species. Two camel single-domain antibodies (VHHs) F1 and F6, selective to fipronil and fipronil-sulfone, respectively, were generated and used to develop enzyme linked immunosorbent assays (ELISAs) for the detection of the two compounds in the sera of black-tailed prairie dogs and rats. The limits of detection of fipronil and fipronil-sulfone in the rodent sera by the corresponding ELISAs were 10 and 30 ng mL-1, and the linear ranges were 30-1000 and 75-2200 ng mL-1. ELISAs showed a good recovery for fipronil and fipronil-sulfone cospiked in the control sera of the black-tailed prairie dogs (90-109%) and rats (93-106%). The VHH-based ELISAs detected fipronil and fipronil-sulfone in the sera of the rodents that received a repeated oral administration of fipronil. The average concentration of fipronil-sulfone was approximately 3.2-fold higher than fipronil in the prairie dog sera (1.15 vs 0.36 μg mL-1) and rat sera (1.77 vs 0.53 μg mL-1). ELISAs agreed well with a liquid chromatography-mass spectrometry method for the quantification of both fipronil and fipronil-sulfone in real serum samples. Fipronil-sulfone was identified as the predominant metabolite of fipronil in the black-tailed prairie dog and rat sera.
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Affiliation(s)
- Kai Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Natalia Vasylieva
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Debin Wan
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - David A. Eads
- Department of Biology, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Jun Yang
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Tyler Tretten
- U.S. Fish and Wildlife Service, Black-Footed Ferret Conservation Center, Carr, Colorado 80612, United States
| | - Bogdan Barnych
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Ji Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, 1955 East–West Road, Honolulu, Hawaii 96822, United States
| | - Shirley J. Gee
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Bruce D. Hammock
- Department of Entomology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Ting Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
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46
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Zortéa T, Dos Reis TR, Serafini S, de Sousa JP, da Silva AS, Baretta D. Ecotoxicological effect of fipronil and its metabolites on Folsomia candida in tropical soils. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 62:203-209. [PMID: 30077901 DOI: 10.1016/j.etap.2018.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
The aim of this study is to evaluate the toxicity of the fipronil and its metabolites, fipronil sulfone and fipronil desulfinyl on Folsomia candida. Three types of soils were used to perform the ecotoxicological tests, two natural soils (Oxisol and Entisol), and an artificial substrate (Tropical Artificial Soil). The treatments consisted of increasing doses of a veterinary medicinal product with active ingredient based on fipronil, and of its two main metabolites, fipronil sulfone and fipronil desulfinyl. The doses of fipronil were 0.00, 0.02, 0.04, 0.08, 0.15, 0.30, 0.60, and 1.00 mg kg-1 of the active ingredient. For fipronil sulfone and fipronil desulfinyl the doses tested were: 0.00, 0.01, 0.02, 0.04, 0.06, 0.08, 0.15, 0.30, 0.60, 1.00, and 5.00 mg kg-1. The effects of toxicity on F. candida were evaluated by survival and reproduction tests, based on the methods described by ISO 11267. There was a completely randomized design, with six replicates for the fipronil tests and eight for the metabolites. We show that fipronil and its metabolites, even at very low concentrations, are toxic to F. candida. Reduction of reproduction can be observed at concentrations of 0.15 mg kg-1. There was little difference in toxicity (LC50 and EC50) between fipronil and its metabolites. Rather, differences were related more to soil type, where the artificial soil was more sensitive than the two natural soils (Oxisol and Entisol). We conclude that it is important to perform ecotoxicological tests in natural soils, in order to generate more realistic representations of veterinary drug toxicity on the environment.
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Affiliation(s)
- Talyta Zortéa
- Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Beloni Trombeta Zanin, 680-E, 89815-630 Chapecó, SC, Brazil
| | - Tamires Rodrigues Dos Reis
- Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Beloni Trombeta Zanin, 680-E, 89815-630 Chapecó, SC, Brazil
| | - Suélen Serafini
- Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Beloni Trombeta Zanin, 680-E, 89815-630 Chapecó, SC, Brazil
| | - José Paulo de Sousa
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Aleksandro Schafer da Silva
- Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Beloni Trombeta Zanin, 680-E, 89815-630 Chapecó, SC, Brazil.
| | - Dilmar Baretta
- Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Beloni Trombeta Zanin, 680-E, 89815-630 Chapecó, SC, Brazil.
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47
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Chirumbolo S, Bjørklund G. The effect of vitamin C on Cyprinus carpio survival in water environment with chemical toxicants. Some comments. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 197:7-8. [PMID: 29407797 DOI: 10.1016/j.aquatox.2018.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 01/27/2018] [Indexed: 06/07/2023]
Affiliation(s)
- Salvatore Chirumbolo
- Department of Neurological and Movement Sciences, University of Verona, Verona, Italy; Council for Nutritional and Environmenal Medicine (CONEM), Mo i Rana, Norway.
| | - Geir Bjørklund
- Department of Neurological and Movement Sciences, University of Verona, Verona, Italy; Council for Nutritional and Environmenal Medicine (CONEM), Mo i Rana, Norway
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48
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Abdel-Daim MM, Abdeen A. Protective effects of rosuvastatin and vitamin E against fipronil-mediated oxidative damage and apoptosis in rat liver and kidney. Food Chem Toxicol 2018; 114:69-77. [DOI: 10.1016/j.fct.2018.01.055] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 10/18/2022]
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49
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Remy R, Bochet CG. Application of Photoclick Chemistry for the Synthesis of Pyrazoles via 1,3-Dipolar Cycloaddition between Alkynes and Nitrilimines Generated In Situ. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701225] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Richard Remy
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 CH-1700 Fribourg Switzerland
| | - Christian G. Bochet
- Department of Chemistry; University of Fribourg; Chemin du Musée 9 CH-1700 Fribourg Switzerland
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50
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Zhao X, Duan Y, Yang F, Wei W, Xu Y, Hu C. Efficient Mechanochemical Synthesis of Polyoxometalate⊂ZIF Complexes as Reusable Catalysts for Highly Selective Oxidation. Inorg Chem 2017; 56:14506-14512. [DOI: 10.1021/acs.inorgchem.7b02163] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaoxiao Zhao
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Yunpeng Duan
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Fei Yang
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Wei Wei
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Yanqing Xu
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Changwen Hu
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, P. R. China
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