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Verebová V, Bedlovičová Z, Bednáriková Z, Staničová J. Monitoring of DNA structural changes after incorporation of the phenylpyrazole insecticide fipronil. Arch Biochem Biophys 2024; 756:110001. [PMID: 38636692 DOI: 10.1016/j.abb.2024.110001] [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: 01/22/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
The use of insecticides presents a risk to the environment because they can accumulate in the water, soil, air, and organisms, endangering human and animal health. It is therefore essential to investigate the effects of different groups of insecticides on individual biomacromolecules such as DNA. We studied fipronil, which belongs to the group of phenylpyrazole insecticides. The interaction of fipronil with calf thymus DNA was investigated using spectroscopic methods (absorption and fluorescence spectroscopy) complemented with infrared spectroscopy and viscosity measurement. Fluorescence emission spectroscopy showed the formation of a fipronil/DNA complex with a combined static and dynamic type of quenching. The binding constant was 4.15 × 103 L/mol. Viscosity changes were recorded to confirm/disconfirm the intercalation mode of interaction. A slight change in DNA viscosity in the presence of fipronil was observed. The phenylpyrazole insecticide does not cause significant conformational changes in DNA structure or increase of its chain length. We hypothesize that fipronil is incorporated into the minor groove of the DNA macromolecule via hydrogen interactions as indicated by FT-IR and CD measurements.
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Affiliation(s)
- Valéria Verebová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine & Pharmacy, Komenského 73, 040 01, Košice, Slovakia
| | - Zdenka Bedlovičová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine & Pharmacy, Komenského 73, 040 01, Košice, Slovakia
| | - Zuzana Bednáriková
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Science, Watsonova 1935/47, 040 01, Košice, Slovakia
| | - Jana Staničová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine & Pharmacy, Komenského 73, 040 01, Košice, Slovakia; Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Kateřinská 1, Prague, Czech Republic.
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Qu L, Qi X, Zhao L, Zhang Y, Zhuge R, Hao Z, Liu C. Development, validation, and use of a monitoring method for fipronil and its metabolites in chicken eggs by QuEChERS with online-SPE-LC-Q/Orbitrap analysis. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2023; 37:e9518. [PMID: 37038653 DOI: 10.1002/rcm.9518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 06/17/2023]
Abstract
RATIONALE The residues of fipronil and its metabolites in chicken eggs pose a threat to human health, so regular monitoring is necessary. However, the pretreatments of the existing detection methods are complex and time-consuming. A simple and streamlined pretreatment method is needed to improve the detection efficiency. METHOD A rapid, efficient, and facile approach employing the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method with online solid-phase extraction liquid chromatography tandem Q Exactive Orbitrap high-resolution mass spectrometry (online-SPE-LC-HRMS) was established and evaluated for the determination of fipronil, fipronil-desulfinyl, fipronil-sulfone, and fipronil-sulfide in chicken eggs. An improved sample preparation technique combining QuEChERS and online-SPE was developed. Negative targeted ion fragmentation scanning and targeted-selected ion monitoring of HRMS were adopted to identify and quantify the target analytes. RESULTS The proposed pretreatment method took a few steps in <13 min to achieve excellent recoveries and negligible interference. High selectivity was acquired with the adoption of Q/Orbitrap HRMS. The limit of quantification (LOQ) of the analytes was 2.5 μg kg-1 , meeting the detection requirements of the maximum residue level enacted by the Codex Alimentarius Commission, Japan, and the United States for the sum of fipronil and its metabolites. Extraction recoveries at three spiked concentration levels were within 84.56% to 93.84%, with relative standard deviation ≤5.87%. CONCLUSION The established method is efficient and easy to operate and displays satisfactory LOQs, recoveries, accuracy, and precision. This approach serves as a reference method for monitoring eggs while providing potential solutions for fipronil determination in more complicated matrices.
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Affiliation(s)
- Lihua Qu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Xiaoyu Qi
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Li Zhao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Yu Zhang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Ronghua Zhuge
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
| | - Zhihui Hao
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
- Innovation Center for Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Congmin Liu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, China
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Shi Y, Wan Y, Wang Y, Li Y, Xu S, Xia W. Fipronil and its transformation products in the Yangtze River: Assessment for ecological risk and human exposure. CHEMOSPHERE 2023; 320:138092. [PMID: 36758817 DOI: 10.1016/j.chemosphere.2023.138092] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Fipronil (FP), a phenylpyrazole insecticide, is widely used in agricultural, residential, and veterinary settings. It is toxic to ecosystems and humans; moreover, some of its transformation products are more toxic than FP. A comprehensive profile of the contamination of the Yangtze River by FP and its transformation products (FPs) is not yet available. This study aims to fill this data gap. A total of 144 water samples were collected from 72 sampling locations along the river during the wet (June 2021) and dry (December 2020) seasons. High detection rates (85.4-91.7%) of FPs were found, with ΣFPs' median concentration of 0.49 ng/L. The parent compound FP was the most abundant (median: 0.13 ng/L), followed by FP-desulfinyl (0.08), FP-sulfone (0.07), FP-detrifluoromethylsulfinyl (DTF, 0.07), FP-sulfide (0.06) and FP-amide (0.06). Their concentrations increased significantly from the upper to the lower reaches; for approximately every 100 km toward the lower reaches, the level of FPs increased by 13-15%. The urban region and wet season had the higher FPs contamination. Through water ingestion, the human exposure risk posed by FPs in the river was acceptable; however, the ecological risk assessment showed a moderate to high risk posed by FPs. Follow-up studies are warranted to establish integrated ecological risk assessment models and conduct epidemiological risk assessments among population groups with high exposure levels of FPs. Given the high ecological risk of FPs, regular monitoring of them in the Yangtze River is necessary. FP-DTF was reported in surface water for the first time.
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Affiliation(s)
- Yujie Shi
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Prevention & Control, Wuhan, Hubei, 430024, China.
| | - Yan Wang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Chao K, Schmidt W, Qin J, Kim M. A rapid and precise spectroscopic method for detecting fipronil insecticide on solid surfaces. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01384-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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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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Bano F, Mohanty B. Thyroid disrupting pesticides mancozeb and fipronil in mixture caused oxidative damage and genotoxicity in lymphoid organs of mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 79:103408. [PMID: 32413496 DOI: 10.1016/j.etap.2020.103408] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 03/26/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
The interference in endocrine signaling in particular of hypothyroid-pituitary-thyroid axis during embryonic/neonatal development increases the risk of long-lasting immune dysfunctioning. Anticipating that, environmentally realistic exposure of established thyroid disrupting pesticides of dithiocarbamate group mancozeb and phenylpyrazole fipronil was given to mice as individual and as mixtures (MIX-I/MIX-II) during the critical initiation phase of the immune response from postnatal day (PND) 31 till PND 60 (maturation phase). The direct exposure effect was assessed at PND 61 and the persistent effect was assessed at PND 91. Pronounced oxidative stress/genotoxicity in lymphoid organs at even low dose mixture exposure of pesticides (MIX-I/ MIX-II) continued to suppress the immune system till adulthood; might be due to the synergistic/additive action. The oxidative stress/genotoxicity effect was prevented on T4 supplementation to inhibit immunotoxicity as T4 is an immune enhancer and antioxidants. Oxidative stress/genotoxicity is suggested as a mechanism of thyroid disruption mediated immune suppression.
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Affiliation(s)
- Farhad Bano
- Department of Zoology, University of Allahabad, Prayagraj 211001, U. P., India.
| | - Banalata Mohanty
- Department of Zoology, University of Allahabad, Prayagraj 211001, U. P., India.
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Gao J, Wang F, Jiang W, Miao J, Wang P, Zhou Z, Liu D. A full evaluation of chiral phenylpyrazole pesticide flufiprole and the metabolites to non-target organism in paddy field. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114808. [PMID: 32434115 DOI: 10.1016/j.envpol.2020.114808] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 05/27/2023]
Abstract
Pesticides applied to paddy fields may pose considerable danger to non-target aquatic organisms and further threaten human health. Flufiprole is a pesticide used in rice fields; considering the widespread existence of rice-fish-farming ecosystems, the acute toxicities of flufiprole enantiomers and its six metabolites (fipronil, flufiprole sulfide, flufiprole sulfone, detrifluoromethylsulfinyl flufiprole, desulfinyl flufiprole, and flufiprole amide) to four common aquatic organisms in rice fields including Misgurnus anguillicaudatus (pond loach), Carassius gibelio (Prussian carp), Pelophylax nigromaculatus (black-spotted frog), and Daphnia magna (water flea) were investigated. Genotoxicity, pathological changes and the effects on the antioxidant system of M. anguillicaudatus were also evaluated after exposure. The LC50 (EC50) values showed that fipronil and desulfinyl flufiprole were the most toxic compounds and were approximately about six times as toxic as flufiprole. No enantioselective toxicity was observed between the two enantiomers. The activity of antioxidant defense enzymes and the content of malondialdehyde (MDA) in the liver and gills of M. anguillicaudatus were significantly increased by the chemicals in most cases. In addition, fipronil and desulfinyl flufiprole were found to induce an increase in the micronucleus rate in M. anguillicaudatus. Histopathological analysis showed that the liver of M. anguillicaudatus was not significantly affected by flufiprole. Our study demonstrated a potential negative effect on flufiprole-treated aquatic organisms. As an alternative to fipronil, the environmental risk of flufiprole and its metabolites to non-target organisms in rice fields cannot be ignored.
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Affiliation(s)
- Jing Gao
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China
| | - Fang Wang
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Wenqi Jiang
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China
| | - Jingwen Miao
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China
| | - Peng Wang
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China
| | - Donghui Liu
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University, No. 2 West Yuanmingyuan Road, Beijing, 100193, PR China.
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Shi L, Chen L, Wan Y, Zeng H, Xia W. Spatial variation of fipronil and its derivatives in tap water and ground water from China and the fate of them during drinking water treatment in Wuhan, central China. CHEMOSPHERE 2020; 251:126385. [PMID: 32145576 DOI: 10.1016/j.chemosphere.2020.126385] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/17/2020] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
Fipronil (FP) is an emerging insecticide, however, its occurrence in drinking water and source water is limited. In this work, a total of 789 tap water and 95 ground water samples were collected from China in June 2019 in order to assess occurrence of FP and its derivatives (FPs). FPs were also analyzed in source, treated (n = 10, July), and tap water samples (n = 81, July and October 2019) originating from the central Yangtze River and its tributary, the Hanshui River in Wuhan. The sum concentrations of FPs (ΣFPs) in the tap water in China ranged from not detected (ND) to 5.07 (median: 0.03 ng/L), with FP found in 55.3% of the samples, and other targets ≤ 50.0%. Significant regional variations in the ΣFPs values were found between East China (75th percentile: 0.31 ng/L) and Northwest China (0.04), as well as between East China and North China (0.04). Similar ΣFPs values were found for ground water and tap water. The estimated daily intake of ΣFPs via water ingestion was below 200 pg/kg-bw/day for all age groups and was lower than the reference dose for FP (0.2 μg/kg-bw/day). Additionally, FPs were found in all of the source water samples collected in Wuhan with concentrations in the range of 0.84-2.72 ng/L for ΣFPs (median: 2.39). Most of these FPs were removed during water treatment. Higher concentration of ΣFPs in tap water was observed in July (median: 0.04 ng/L) compared to that in October (ND). This is the first study on the occurrence of FPs in the Yangtze River, the fate of FPs during the tap water treatment, and the regional distribution of FPs in tap water from China.
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Affiliation(s)
- Lisha Shi
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Li Chen
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China
| | - Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Prevention & Control, Wuhan, Hubei, 430015, PR China.
| | - Huaicai Zeng
- Department of Preventive Medicine, School of Public Health, University of South China, 28 Western Changsheng Road, Hengyang, 421001, PR China
| | - Wei Xia
- Key Laboratory of Environment and Health (HUST), Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, PR China.
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Guedes TDA, Moreira-de-Sousa C, Lima HMS, Grella TC, Socolowski PC, Fontanetti CS. Cytoprotective and anti-apoptotic action of HSP70 stress protein in Oreochromis niloticus exposed to residual dilutions of insecticides with fipronil and ethiprole. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:687-693. [PMID: 32432968 DOI: 10.1080/03601234.2020.1766898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The objective of this research was to investigate the potential damage caused by the residual concentrations of the insecticides Regent® WS 800 and Curbix® SC 200, containing fipronil and ethiprole, respectively as active ingredients, on the liver of Oreochromis niloticus. The analyses of HSP70 shock protein labelling and cell death process by TUNEL method were performed in order to measure the effects of the exposure of cell repair system of fish to both insecticides. Statistical analyses showed no significant molecular damage to the hepatic tissue of animals. Nevertheless, variations in HSP70 and DNA fragmentation levels, endpoint of cell repair system response and cellular death, respectively, were observed in several groups. These results indicate that the cell repair machinery was efficient when in contact with residual concentrations of insecticides. However, the DNA fragmentation detected by the TUNEL method suggests that even in face of the cytoprotective action of the HSP70 protein, there are damages that become irreparable. To finish, it is worth mentioning that given the results obtained from residual concentrations, use in the field should be with caution.
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Affiliation(s)
- Thays de Andrade Guedes
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Cristina Moreira-de-Sousa
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Hellen Maria Soares Lima
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Tatiane Caroline Grella
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Priscila Cintra Socolowski
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, Brazil
| | - Carmem Silvia Fontanetti
- Department of Biology, UNESP (São Paulo State University), IB (Instituto de Biociências), Rio Claro, São Paulo, 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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A facile and label-free SERS approach for inspection of fipronil in chicken eggs using SiO 2@Au core/shell nanoparticles. Talanta 2019; 207:120324. [PMID: 31594576 DOI: 10.1016/j.talanta.2019.120324] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 01/10/2023]
Abstract
Fipronil is a phenylpyrazole insecticide commonly used in agriculture and residential applications. In this paper, we reported a novel label-free surface-enhanced Raman spectroscopy (SERS) method for detection of fipronil residues in chicken eggs (mostly accumulated on the egg membrane). We fabricated the SERS substrates composed of the SiO2@Au core/shell nanoparticles and probed the contamination of fipronil residue on the egg membrane. The identification of the characteristic Raman bands of fipronil was achieved with the aid of density functional theory (DFT) calculation, with which we could analyzed the trace amount of fipronil in a quantitative way. As such, this work may provide a practical solution to quick inspection of fipronil contamination in chicken eggs or other foods.
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Fipronil induces apoptosis and cell cycle arrest in porcine oocytes during in vitro maturation. Apoptosis 2019; 24:718-729. [DOI: 10.1007/s10495-019-01552-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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de Mendonça AÉ, Moreira RG, da Penha Henriques do Amaral M, de Oliveira Monteiro CM, de Mello V, Vilela FMP, Mendonça Homem FC, Furlong J, Dolinski C, de Azevedo Prata MC, das Chagas EF. Entomopathogenic nematodes in pharmaceutical formulations for Rhipicephalus microplus (Acari: Ixodidae) control: In vitro evaluation of compatibility, thermotolerance, and efficiency. Ticks Tick Borne Dis 2019; 10:781-786. [PMID: 30935855 DOI: 10.1016/j.ttbdis.2019.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/28/2019] [Accepted: 03/15/2019] [Indexed: 10/27/2022]
Abstract
This work aimed to investigate candidate biological control agents against the cattle tick Rhipicephalus microplus by studying three entomopathogenic nematodes (EPN) isolates from two species, Heterorhabditis bacteriophora (isolates LPP30 and HP88) and Heterorhabditis baujardi (isolate LPP7). The study comprised the pharmacotechnical development of four test formulations, and their biological evaluation, in three stages: 1) selection of the fittest EPN isolate at 16 ± 1 °C after 120 h of incorporation in the formulations; 2) determination of the effects of temperature and incubation time on the survival of the selected isolate in formulations; 3) evaluation of the in vitro efficacy (infectivity) of the selected EPN formulations and their components against R. microplus females after 72 h exposure. H. baujardi LPP7 presented the highest survival rates in 0.1% carboxymethyl cellulose sodium (CMC) formulations (100% at 25 °C, up to 10 days after incorporation). At the highest tested temperature (34.2 °C), 54% of LPP7 survived for up to 72 h in CMC formulations. The infectivity of LPP7-containing formulation against R. microplus was 99%, reducing oviposition, egg production index and larval hatching. Considering the pressing need for safer acaricide products, incorporation of EPNs in pharmaceutical formulations is presented as a promising approach for the biological control of cattle tick infestations, potentially reducing environmental impact and resistance development associated with chemical acaricides.
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Affiliation(s)
- Alessandra Ésther de Mendonça
- Laboratório de Estudos em Pragas e Parasitos - LEPP, do Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Outeiro São João Batista, s/n°, Espaço Multidisciplinar, Campus Valonguinho, Niterói, RJ, CEP. 24020-141, Brazil; Programa de Pós-Graduação em Ciências e Biotecnologia, Universidade Federal Fluminense, Outeiro São João Batista, s/n°, Espaço Multidisciplinar, Campus Valonguinho, Niterói, CEP. 24020-141, RJ, Brazil; Laboratório de Parasitologia da Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Juiz de Fora, MG, CEP: 36038-330, Brazil
| | - Raiana Gonçalves Moreira
- Laboratório de Parasitologia da Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Juiz de Fora, MG, CEP: 36038-330, Brazil
| | - Maria da Penha Henriques do Amaral
- Departamento de Ciências Farmacêuticas, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n, Juiz de Fora, MG, CEP 36036-900, Brazil.
| | - Caio Márcio de Oliveira Monteiro
- Insituto de Patologia Tropical e Saúde Pública da Universidade Federal de Goiás, Rua 235, s/n, Setor Universitário, Goiânia, Goiás, CEP: 74605-050, Brazil.
| | - Valéria de Mello
- Departamento de Ciências Farmacêuticas, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n, Juiz de Fora, MG, CEP 36036-900, Brazil
| | - Fernanda Maria Pinto Vilela
- Departamento de Ciências Farmacêuticas, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n, Juiz de Fora, MG, CEP 36036-900, Brazil.
| | | | - John Furlong
- Laboratório de Parasitologia da Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Juiz de Fora, MG, CEP: 36038-330, Brazil.
| | - Cláudia Dolinski
- Laboratório de Entomologia e Fitopatologia da Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Av. Alberto Lamego, 2000, Campos dos Goytacazes, RJ, CEP: 28013-602, Brazil.
| | - Márcia Cristina de Azevedo Prata
- Laboratório de Parasitologia da Embrapa Gado de Leite, Rua Eugênio do Nascimento, 610, Juiz de Fora, MG, CEP: 36038-330, Brazil.
| | - Evelize Folly das Chagas
- Laboratório de Estudos em Pragas e Parasitos - LEPP, do Departamento de Biologia Celular e Molecular, Universidade Federal Fluminense, Outeiro São João Batista, s/n°, Espaço Multidisciplinar, Campus Valonguinho, Niterói, RJ, CEP. 24020-141, Brazil; Programa de Pós-Graduação em Ciências e Biotecnologia, Universidade Federal Fluminense, Outeiro São João Batista, s/n°, Espaço Multidisciplinar, Campus Valonguinho, Niterói, CEP. 24020-141, RJ, Brazil; Instituto Nacional de Ciências e Tecnologia em Entomologia Molecular (INCT-EM), Rio de Janeiro, RJ, Brazil.
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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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15
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Wang N, Wang C, Li H, Fang L, Ding R, Mao J, Chen Z, Yang G, Aboul-Enein HY. Determination of fipronil and its metabolites in eggs by UPLC-QqLIT-MS/MS with multistage mass spectrometry mode. J LIQ CHROMATOGR R T 2018. [DOI: 10.1080/10826076.2018.1485041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ni Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Chenchen Wang
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Huidong Li
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Liping Fang
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Ruiyan Ding
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Jiangsheng Mao
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Zilei Chen
- Institution of Quality Standard and Testing Technology for Agro-product, Shandong Academy of Agricultural Science, Jinan, China
- Shandong Provincial Key Laboratory of Testing Technology for Food Quality and Security, Jinan, China
| | - Guosheng Yang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Hassan Y. Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Center, Dokki, Cairo, Egypt
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16
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Ardeshir RA, Zolgharnein H, Movahedinia A, Salamat N, Zabihi E. CYP1A gene expression as a basic factor for fipronil toxicity in Caspian kutum fish. Toxicol Rep 2017; 5:113-124. [PMID: 29854583 PMCID: PMC5978015 DOI: 10.1016/j.toxrep.2017.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/02/2017] [Accepted: 12/13/2017] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to assess the effects of fipronil insecticide on the Caspian kutum fish at different levels of biological organizations and to find possible relationship between these biomarkers. Different doses of fipronil (65, 130 and 200 mg/kg) were intraperitoneally administered to the fish for 2 weeks. After 7 and 14 days of exposure, alterations in organ-somatic index, tissue and DNA structure, oxidative stress and CYP1A gene expression in gill, liver, brain and kidney were studied. Determination of these parameters in the liver showed that the degree of tissue change (DTC), comet tail, superoxide dismutase (SOD) and relative CYP1A mRNA expression increased mostly in a time dependent manner whereas in the kidney increased mostly in a dose dependent manner. These parameters in the gill increased more in time and dose dependent manner. Apart from the changes in CYP1A expression and oxidative stress, no alterations was observed in the brain. Multiple regression analysis showed that the CYP1A had the most correlation with the organ-somatic index (R2 = 0.76) and comet tail (R2 = 0.89) in the liver, and with DTC (R2 = 0.93) and oxidative stress (R2 = 0.87) in the kidney. Generally, this study showed that CYP1A gene expression can be considered as one basic factor for fipronil toxicity in this fish. However, other possible factors also should be considered for future research.
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Affiliation(s)
- Rashid Alijani Ardeshir
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran
| | - Hossein Zolgharnein
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran
| | - Abdolali Movahedinia
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran.,Department of Marine Biology, Faculty of Marine Sciences, University of Mazandaran, Babolsar, Iran
| | - Negin Salamat
- Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, P.O. Box 669, Khorramshahr, Iran
| | - Ebrahim Zabihi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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17
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Comparison of waterborne and intraperitoneal exposure to fipronil in the Caspian white fish ( Rutilus frisii) on acute toxicity and histopathology. Toxicol Rep 2017; 4:348-357. [PMID: 28959659 PMCID: PMC5615146 DOI: 10.1016/j.toxrep.2017.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/22/2017] [Accepted: 06/22/2017] [Indexed: 01/21/2023] Open
Abstract
Determination of median lethal dose of fipronil in fish for the first time. Determination of median lehal concentration of fipronil in the Caspian white fish. Comparison of acute toxicity and histopathological effect of fipronil in the fish exposed via different routes. Waterborne exposure to fipronil has more effect on gill whereas its intraperitoneal exposure has more effect on kidney. Fish exposed to fipronil shows some alterations in brain tissue reported for the first time.
Fipronil is an effective insecticide widely used in agriculture with potential ecotoxicological consequences. The median lethal dose (LD50) and concentration (LC50) of fipronil in 16.3 g Caspian white fish, Rutilus frisii kutum fingerlings were determined. To determine the LD50, a total of 133 fish were assigned to 19 tanks (7 fish/tank) including one control and 6 treatment groups (300, 450, 550, 650, 750, 850 mg/kg). Fish were injected intraperitoneally and monitored at 96 h. The LD50 of fipronil was 632 mg/kg suggesting it was slightly toxic to the Caspian white fish. To determine LC50, 114 fish were assigned to 19 tanks (6 fish/tank) including one control and 6 treatment groups (300, 400, 500, 600, 700, 800 μg/L). The LC50 of fipronil was 572 μg/L, which was highly toxic to the fish. The degree of tissue change (DTC) in vital organs from moribund fish exposed via waterborne exposure showed severe damage (DTC: 71 ± 52 for 700 μg/L) in the gill, including aneurisms, extensive fusion and necrosis. The fish exposed through the intraperitoneal route seemed to have severe lesions (DTC: 66 ± 50 for 750 mg/kg) in the kidney, involving hemorrhage, tubular degeneration and necrosis. The liver had no significant differences in DTC values between the two routes and showed pyknosis and sinusoid dilation. Hematoxylin and eosin staining did not show any histological alterations in the brain but nissl staining showed some alterations in distribution of purkinje cells. Generally, this study showed that the route of exposure to fipronil not only affects its acute toxicity but also determines the main target organs of toxicity and histopathological alterations in Caspian white fish.
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Ziliotto L, Luna SP, A.Filho DA, Resende LO, Aun AG, Braz MG. Genotoxicity assessment of fipronil (frontline plus®) in Canis familiaris. PESQUISA VETERINARIA BRASILEIRA 2017. [DOI: 10.1590/s0100-736x2017000300009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT: Fipronil is a pesticide widely used for controlling fleas and ticks in domestic animals, and its short-term exposure can lead to serious effects on animals. However, the possible genotoxic effect of this compound has not been investigated in target animals. Based on the hypothesis that fipronil can induce genotoxicity, this study evaluated the effect of fipronil on DNA damage in peripheral blood cells. For that purpose, ten dogs of both sexes were used in the study. The product (6.7mg/kg) was applied on the dorsal neck region of each animal. Peripheral blood samples were collected immediately prior to application of the product, and at 3, 8 and 24 hours after the application. Samples were processed for comet assay. No statistically significant differences were found among the four time points. The current study suggests for the first time that a single exposure to this pesticide does not induce systemic genotoxic effect in dogs.
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de Barros AL, Bae JH, Borges CS, Rosa JL, Cavariani MM, Silva PV, Pinheiro PFF, Anselmo-Franci JA, Arena AC. Perinatal exposure to insecticide fipronil: effects on the reproductive system in male rats. Reprod Fertil Dev 2017; 29:1130-1143. [DOI: 10.1071/rd15517] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 03/12/2016] [Indexed: 12/26/2022] Open
Abstract
Fipronil is an insecticide widely used in agriculture, veterinary medicine and public health that has recently been listed as a potential endocrine disrupter. In the present study we evaluated the effects of perinatal exposure to fipronil during the period of sexual brain differentiation and its later repercussions on reproductive parameters in male rats. Pregnant rats were exposed (via gavage) to fipronil (0.03, 0.3 or 3 mg kg–1) from Gestational Day 15 until Postnatal Day 7. Fipronil exposure did not compromise the onset of puberty. In adulthood, there was no effect on organ weight or sperm production. Furthermore, there were no adverse effects on the number of Sertoli cells per seminiferous tubule, testicular and epididymal histomorphometry or histopathology or expression patterns of androgen receptor in the testis. Similarly, no changes were observed in the sexual behaviour or hormone levels. However, in rats exposed to fipronil, changes in sperm motility were observed, with a decrease in motile spermatozoa and an increase in non-mobile spermatozoa, which can compromise sperm quality in these rats. Perinatal exposure to fipronil has long-term effects on sperm parameters, and the epididymis can be a target organ. Additional studies should be undertaken to identify the mechanisms by which fipronil affects sperm motility.
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de Morais CR, Bonetti AM, Carvalho SM, de Rezende AAA, Araujo GR, Spanó MA. Assessment of the mutagenic, recombinogenic and carcinogenic potential of fipronil insecticide in somatic cells of Drosophila melanogaster. CHEMOSPHERE 2016; 165:342-351. [PMID: 27664524 DOI: 10.1016/j.chemosphere.2016.09.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 06/06/2023]
Abstract
Fipronil (FP) is an insecticide that belongs to the phenylpyrazole chemical family and is used to control pests by blocking GABA receptor at the entrance channel of the chlorine neurons. The aim of this study was to evaluate the mutagenic, recombinogenic and carcinogenic potential of FP. The mutagenic and recombinogenic effects were evaluated using the somatic mutation and recombination test (SMART) on wing cells of Drosophila melanogaster. Third instar larvae from standard (ST) and high bioactivation (HB) crosses were treated with different concentrations of FP (0.3, 0.7, 1.5 or 3.0 × 10-5 mM). The results showed mutagenic effects at all concentrations tested in the HB cross; and all concentrations tested in the ST cross, except at concentration of 0.7 × 10-5 mM. The carcinogenic effect of FP was assayed through the test for detection of epithelial tumor (warts) in D. melanogaster. Third instar larvae from wts/TM3 virgin females mated to mwh/mwh males were treated with different concentrations of FP (0.3, 0.7, 1.5 or 3.0 × 10-5 mM). All these concentrations induced a statistically significant increase in tumor frequency. In conclusion, FP proved to be mutagenic, recombinogenic and carcinogenic in somatic cells of D. melanogaster.
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Affiliation(s)
- Cássio Resende de Morais
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Ana Maria Bonetti
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Stephan Malfitano Carvalho
- Departament of Entomology, Federal University of Lavras, PO Box 3037, 37.200-000, Lavras, Minas Gerais, Brazil
| | - Alexandre Azenha Alves de Rezende
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Galber Rodrigues Araujo
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Mário Antônio Spanó
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, 38400-902, Uberlândia, Minas Gerais, Brazil.
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Badgujar PC, Selkar NA, Chandratre GA, Pawar NN, Dighe VD, Bhagat ST, Telang AG, Vanage GR. Fipronil-induced genotoxicity and DNA damage in vivo: Protective effect of vitamin E. Hum Exp Toxicol 2016; 36:508-519. [DOI: 10.1177/0960327116655388] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Fipronil, an insecticide of the phenylpyrazole class has been classified as a carcinogen by United States Environmental Protection Agency, yet very limited information is available about its genotoxic effects. Adult male and female animals were gavaged with various doses of fipronil (2.5, 12.5, and 25 mg/kg body weight (bw)) to evaluate micronucleus test (mice), chromosome aberration (CA), and comet assay (rats), respectively. Cyclophosphamide (40 mg/kg bw; intraperitoneal) was used as positive control. Another group of animals were pretreated with vitamin E orally (400 mg/kg bw) for 5 days prior to administration of fipronil (12.5 mg/kg). Fipronil exposure in both male and female mice caused significant increase in the frequency of micronuclei (MN) in polychromatic erythrocytes. Similarly, structural CAs in bone marrow cells and DNA damage in the lymphocytes was found to be significantly higher in the male and female rats exposed to fipronil as compared to their respective controls. The average degree of protection (male and female animals combined together) shown by pretreatment of vitamin E against fipronil-induced genotoxicity was 63.28%: CAs; 47.91%: MN formation; and 74.70%: DNA damage. Findings of this study demonstrate genotoxic nature of fipronil regardless of gender effect and documents protective role of vitamin E.
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Affiliation(s)
- PC Badgujar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, India
- Department of Food Science and Technology, Food Toxicology Section, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonipat, Haryana, India
| | - NA Selkar
- National Centre for Preclinical Reproductive and Genetic Toxicology, National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - GA Chandratre
- Division of Pathology, Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, India
| | - NN Pawar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, India
| | - VD Dighe
- National Centre for Preclinical Reproductive and Genetic Toxicology, National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - ST Bhagat
- National Centre for Preclinical Reproductive and Genetic Toxicology, National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - AG Telang
- Toxicology Laboratory, Centre for Animal Disease Research and Diagnosis, Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, India
| | - GR Vanage
- National Centre for Preclinical Reproductive and Genetic Toxicology, National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
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Huang H, Zhang K, Zhou Y, Ding X, Yu L, Zhu G, Guo J. MicroRNA-155 targets cyb561d2 in zebrafish in response to fipronil exposure. ENVIRONMENTAL TOXICOLOGY 2016; 31:877-886. [PMID: 25532856 DOI: 10.1002/tox.22099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 12/04/2014] [Accepted: 12/07/2014] [Indexed: 06/04/2023]
Abstract
MicroRNAs (miRNAs), which are a class of small noncoding RNAs, can modulate the expression of many protein-coding genes when an organism is exposed to an environmental chemical. We previously demonstrated that miR-155 was significantly downregulated in adult zebrafish (Danio rerio) in response to fipronil (5-amino-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]-4-[(trifluoromethyl) sulphinyl]-1H-pyrazole-3-carbonitrile) exposure. However, the regulation of this miRNA's predicted target gene cyb561d2, which is a member of the cytochrome b561 (cyt b561) family involved in electron transfer, cell defence, and chemical stress, has not been experimentally validated to date. In this study, we evaluated the effects of fipronil on miR-155 and cyb561d2 in zebrafish. The expression of miR-155 was downregulated, whereas cyb561d2 was upregulated in both mRNA and protein level in a dose-dependent manner upon stimulation of fipronil. The dual luciferase report assay demonstrated that miR-155 interacted with cyb561d2 3'-untranslated regions (3'-UTR). The expression of cyb561d2 was reduced in both mRNA and protein levels when ZF4 cells were transfected with an miR-155 mimic, whereas its expression levels of both mRNA and protein were increased when endogenous miR-155 was inhibited by transfection with an miR-155 inhibitor. The results improved our understanding of molecular mechanism of toxicity upon fipronil exposure, and presents miR-155 as a potential novel toxicological biomarker for chemical exposure. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 877-886, 2016.
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Affiliation(s)
- Hannian Huang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
- Department of Applied Engineering, Zhejiang Economic & Trade Polytechnic, Hangzhou, 310018, People's Republic of China
| | - Kai Zhang
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
| | - Yongyong Zhou
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
| | - Xianfeng Ding
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
| | - Liang Yu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310029, People's Republic of China
| | - Guonian Zhu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310029, People's Republic of China
| | - Jiangfeng Guo
- College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou, 310018, People's Republic of China
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Lovinskaya AV, Kolumbayeva SZ, Kolomiets OL, Abilev SK. Genotoxic effects of pesticide fipronil in somatic and generative cells of mice. RUSS J GENET+ 2016. [DOI: 10.1134/s1022795416050070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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de Barros AL, Rosa JL, Cavariani MM, Borges CS, Villela e Silva P, Bae JH, Anselmo-Franci JA, Cristina Arena A. In utero and lactational exposure to fipronil in female rats: Pregnancy outcomes and sexual development. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2016; 79:266-73. [PMID: 27074097 DOI: 10.1080/15287394.2016.1149132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Fipronil, a phenylpyrazole insecticide, is used in agriculture, veterinary medicine, and public health. Because this insecticide is considered a potential endocrine disruptor, the aim of this study was to examine the influence of perinatal exposure to fipronil on neonatal female reproductive system development. Pregnant rats were exposed (via gavage) daily to fipronil (0.03, 0.3, or 3 mg/kg) from gestational day 15 to day 7 after birth, and effects on the reproductive functions assessed on postnatal day (PND) 22. No signs of maternal toxicity were observed during daily treatment with fipronil. Perinatal exposure to the highest dose of fipronil (3 mg/kg) delayed the age of vaginal opening (VO) and first estrus without markedly affecting the anogenital distance (AGD). Further, exposure to 0.3 mg/kg fipronil produced a significantly shorter estrus cycle and reduced number of cycles during the period of evaluation. However, the other reproductive parameters analyzed, including fertility, hormone levels, sexual behavior, and histology of ovaries and uterus, displayed no marked alterations. In this experimental model, fipronil interfered with development of neonatal female reproductive system as evidenced by delay in VO and estrus cycle alterations without apparent significant effects on fertility. Further studies are needed to identify the mechanisms of action associated with the observed female reproductive system changes.
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Affiliation(s)
- Aline Lima de Barros
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Josiane Lima Rosa
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Marília Martins Cavariani
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Cibele Santos Borges
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Patrícia Villela e Silva
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Julie Heejoo Bae
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
| | - Janete Aparecida Anselmo-Franci
- b Department of Physiology , Ribeirão Preto Medical School, University of São Paulo (USP) , Ribeirão Preto , São Paulo , Brazil
| | - Arielle Cristina Arena
- a Department of Morphology , Institute of Biosciences of Botucatu, Univ Estadual Paulista (UNESP)-Botucatu , São Paulo State , Brazil
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Khan S, Jan MH, Kumar D, Telang AG. Firpronil induced spermotoxicity is associated with oxidative stress, DNA damage and apoptosis in male rats. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 124:8-14. [PMID: 26453224 DOI: 10.1016/j.pestbp.2015.03.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 03/26/2015] [Accepted: 03/26/2015] [Indexed: 06/05/2023]
Abstract
The present study is the first to investigate and characterize the fipronil (FPN) induced spermotoxicity in male rats. Male rats were orally given FPN (2.5, 5.0 and 10 mg/kg/day) for 4 weeks. Epididymal sperms were collected and remaining testis was processed for histopathological evaluation. FPN treatment significantly reduced sperm density, motility, viability and per cent intact acrosome along with concomitant increase in spermatozoa abnormalities. Exposure of FPN caused excessive ROS generation, lipid peroxidation and alteration in mitochondrial membrane potential leading to apoptosis of spermatozoa in dose dependent manner. Higher FPN doses (5 and 10 mg/kg) markedly reduced the DNA integrity of spermatozoa. These data suggest that FPN causes male reproductive toxicity through oxidative stress induced DNA damage and apoptosis of spermatozoa.
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Affiliation(s)
- Saleem Khan
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - M H Jan
- Division of Animal Reproduction, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - Dhirendra Kumar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar 243122, India
| | - A G Telang
- Centre for Animal Disease Research and Diagnosis, Indian Veterinary Research Institute, Izatnagar 243122, India.
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Yildirim N, Agar G. Determination of genotoxic effects of fipronil in Vicia faba using random amplified polymorphic DNA analysis. Toxicol Ind Health 2015; 32:1450-1455. [DOI: 10.1177/0748233714564416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study was undertaken to appreciate genotoxic potential of fipronil herbicides in the roots of Vicia faba seedlings. Fipronil was clearly dose dependent on root growth inhibitors, total soluble protein, and random amplified polymorphic DNA (RAPD) assays. Increase in concentration of fipronil resulted in decreased amount of root length and increased level of protein. For the RAPD analyses, 15 RAPD primers were found to produce unique polymorphic band patterns and were subsequently used to produce a total of 110 bands of 45–1250 bp. Each primer generated 4–11 RAPD bands across 15 primers. The changes occurring in RAPD profiles following fipronil treatment included variation becoming evident as disappearance and/or appearance of DNA bands compared with the normal seedlings. These results indicated that genomic template stability was significantly affected at the above fipronil concentration. This study further confirmed that the RAPD assays are useful in determining potential genotoxicity of fipronil.
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Affiliation(s)
- Nalan Yildirim
- Department of Biology, Faculty of Arts and Sciences, Erzincan University, Erzurum, Turkey
| | - Guleray Agar
- Department of Biology, Faculty of Arts and Sciences, Atatürk University, Erzincan, Turkey
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Cravedi JP, Delous G, Zalko D, Viguié C, Debrauwer L. Disposition of fipronil in rats. CHEMOSPHERE 2013; 93:2276-2283. [PMID: 24016625 DOI: 10.1016/j.chemosphere.2013.07.083] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/24/2013] [Accepted: 07/30/2013] [Indexed: 06/02/2023]
Abstract
In the scientific literature, little attention has been paid to the disposition of fipronil, a phenyl pyrazole insecticide. In this study, the tissue distribution, the metabolic fate, and the elimination of fipronil was investigated in rats using radiolabeled fipronil. When a single oral dose of (14)C-fipronil (10 mg kg(-1) b.w.) was given to rats, the proportion of dose eliminated in urine and feces 72 h after dosing was ca 4% for each route. At the end of the experiment the highest levels of radioactivity were found in adipose tissue and adrenals. The main part of the radioactivity present in investigated tissues (adipose tissue, adrenals, liver, kidney, testes) was due to fipronil-sulfone. Five additional metabolites, isolated from urine were characterized by LC-MS/MS. Most of them are formed by the loss of the trifluoromethylsulphinyl group and subsequent hydroxylation and/or conjugation to glucuronic acid or sulfate. In conclusion, the retention of the metabolite fipronil sulfone in tissues following fipronil administration raises the question of the potential toxicity of this insecticide.
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Affiliation(s)
- J P Cravedi
- INRA, UMR1331, Toxalim, Research Centre in Food Toxicology, Toulouse, France; Université de Toulouse, INPT, UPS, Toulouse, France.
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Roma GC, Mathias MIC, De Faria AU, De Oliveira PR, Furquim KCS, Bechara GH. Morphological and cytochemical changes in synganglion ofRhipicephalus sanguineus(Latreille, 1806) (Acari: Ixodidae) female ticks from exposure of andiroba oil (Carapa guianensis). Microsc Res Tech 2013; 76:687-96. [DOI: 10.1002/jemt.22219] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 02/28/2013] [Accepted: 03/31/2013] [Indexed: 11/12/2022]
Affiliation(s)
- Gislaine Cristina Roma
- Departamento de Biologia; Instituto de Biociências, UNESP-Universidade Estadual Paulista; São Paulo; Brazil
| | | | - Adriano Uemura De Faria
- Departamento de Biologia; Instituto de Biociências, UNESP-Universidade Estadual Paulista; São Paulo; Brazil
| | - Patrícia Rosa De Oliveira
- Departamento de Biologia; Instituto de Biociências, UNESP-Universidade Estadual Paulista; São Paulo; Brazil
| | | | - Gervásio Henrique Bechara
- Departamento de Biologia; Instituto de Biociências, UNESP-Universidade Estadual Paulista; São Paulo; Brazil
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de Barros AL, de Souza VV, Navarro SD, Oesterreich SA, Oliveira RJ, Kassuya CAL, Arena AC. Genotoxic and mutagenic effects of diflubenzuron, an insect growth regulator, on mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2013; 76:1003-1006. [PMID: 24168035 DOI: 10.1080/15287394.2013.830585] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study assessed the genotoxic and mutagenic potential of diflubenzuron (DFB) insecticide in mice. Mice were divided into five groups: group I: negative control; group II: positive control; group III: 0.3 mg/kg of DFB; group IV: 1 mg/kg of DFB; group V: 3 mg/kg DFB. Peripheral blood was collected for the comet assay and the micronucleus (MN) test. DFB increased incidence of comet formation at all doses tested. A rise in the frequency of MN in mouse peripheral blood was observed 24, 48, and 72 h postexposure at all doses tested. Data demonstrate that DFB exerts genotoxic and mutagenic effects in a dose-dependent manner.
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Affiliation(s)
- Aline Lima de Barros
- a School of Health Sciences, Federal University of Grande Dourados (UFGD) , Dourados , Mato Grosso do Sul State , Brazil
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Roma GC, De Oliveira PR, Araujo AM, Bechara GH, Mathias MIC. Genotoxic and mutagenic effects of permethrin in mice: Micronuclei analysis in peripheral blood erythrocytes. Microsc Res Tech 2012; 75:1732-6. [DOI: 10.1002/jemt.22124] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Accepted: 08/14/2012] [Indexed: 11/06/2022]
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