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Li Q, Li B, Chen D, Zhang R, Liu S, Yang S, Li Y, Li J. Dietary exposure risk assessment of pyrethroids in fruits and vegetables: a national scale investigation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:84620-84630. [PMID: 37369895 DOI: 10.1007/s11356-023-28213-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023]
Abstract
The pyrethroids (PYRs) were extensively used to increase agriculture outputs. However, the cumulative exposures of PYRs would bring about potential risks through food intake. It is an urgent requirement to explore the cumulative exposures on the fruits and vegetables. In this study, a total of 1720 samples incorporating eight primary fruits and vegetables collected around China were investigated to assess the health risk for adults and children from eight PYRs. The relative potency factor (RPF) method was employed to reveal both chronic and acute cumulative exposure. As a result, the hazard index (HI) were 0.004 ~ 0.200% and 11.85 ~ 99.19% for chronic and acute cumulative dietary exposure, respectively. The national wide investigation indicated the cumulative assessments were not hazardous. Besides, the acute intake of pear, grape, and lettuce should be paid on more attention, particularly. This study provides compelling evidence to develop relative policy and regulation to improve the food quality and safety.
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Affiliation(s)
- Qianqian Li
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China
| | - Bei Li
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Hainan, 570314, People's Republic of China
| | - Dawei Chen
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (No. 2019RU014), China National Center for Food Safety Risk Assessment, Beijing, 100021, People's Republic of China
| | - Rong Zhang
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China
| | - Shuyan Liu
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China
| | - Shupeng Yang
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China
| | - Yi Li
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China
| | - Jianxun Li
- Institute of Food Science and Technology, Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Beijing, 100093, People's Republic of China.
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2
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Wang Z, Liu R, Zhang L, Yu S, Nie Y, Deng Y, Liu R, Zhu W, Zhou Z, Diao J. Thermoregulation of Eremias argus alters temperature-dependent toxicity of beta-cyfluthrin: Ecotoxicological effects considering ectotherm behavior traits. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118461. [PMID: 34748886 DOI: 10.1016/j.envpol.2021.118461] [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: 06/17/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Risk assessments of the ecotoxicological effects insecticides impose on ectotherms have increasingly considered temperature. However, the changes toxicants induce in thermoregulatory behavioral traits may lead to a divergence of thermal selection and temperature-dependent changes of contaminant toxicity. This study demonstrated the interaction of behavioral thermoregulation and temperature-dependent toxicity of beta-cyfluthrin (BC) in the lizard Eremias argus. Based on the negative relationship between temperature and BC toxicity, seeking a warming environment was assumed to represent a self-rescue behavior (and vice versa). The results showed that BC-treated lizards (0-20 μg/g body weight (bw)) showed such self-rescue behavior, while lizards exposed to an extremely high BC dose (200 μg/g bw) sought a cooler environment. Biochemical assays showed that BC affected neurotransmitter systems, caused oxidative stress, and interfered with ion-transport in the central nervous system. Biomarkers of the cholinergic and glutamatergic system, ion-transport function, and oxidative stress were identified as potential biochemical variables related to thermoregulatory behavior. Apparently, seeking a warmer environment is a survival strategy with the aim to neutralize BC toxicity, while seeking a cooler environment aims to attenuate the harmful effects of metabolic and oxidative stress, and to decelerate internal BC diffusion. This phenomenon could be also explained by the concept of the "cooling trap", i.e., a behavior where cooler temperatures are sought. This impairs survival after exposure to BC at it has a negative temperature coefficient, derived from a dysfunction of the central nervous system regarding thermoregulation caused by the high dosage of neurotoxicant and resulting temperature maladaptation. Implications of the interaction between thermoregulatory behavior and temperature-dependent toxicity are presented, which may aid further temperature-dependent risk assessments.
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Affiliation(s)
- Zikang Wang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Ran Liu
- Beijing Food Safety Monitoring and Risk Assessment Center (Beijing Food Inspection Institute), Beijing, China
| | - Luyao Zhang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Simin Yu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Yufan Nie
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Yue Deng
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Rui Liu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Wentao Zhu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Zhiqiang Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China
| | - Jinling Diao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2, Beijing, 100193, China.
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3
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Kandel Gambarte PC, Wolansky MJ. The gut microbiota as a biomarker for realistic exposures to pesticides: A critical consideration. Neurotoxicol Teratol 2022; 91:107074. [DOI: 10.1016/j.ntt.2022.107074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/24/2021] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
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4
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Use of subcutaneous transponders to monitor body temperature in laboratory rats. J Pharmacol Toxicol Methods 2021; 114:107145. [PMID: 34958946 DOI: 10.1016/j.vascn.2021.107145] [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: 08/13/2021] [Revised: 11/24/2021] [Accepted: 12/18/2021] [Indexed: 11/20/2022]
Abstract
Implantable radiofrequency transponders may be adequate for the characterization of hazardous chemicals targeting body temperature control in experimental animals when colonic probes and automated monitoring systems based on intraperitoneal transmitters are not available, installable or applicable for any reason. In this work, we summarize a series of experiments showing the implantation protocol and utility of rice-grain size transponders to monitor subcutaneous temperature (Tsc) after exposure to pharmacological or toxicological treatments targeting body temperature control in laboratory rats. In addition, to explore the responsiveness of this thermometric system, the influence of physiological activity on Tsc readings was examined by monitoring Tsc after a motor exercise in a RotaRod system. Moreover, we characterized the effects of acute oral administration of the pyrethroid insecticide permethrin (PRM) in corn oil (1 mL/kg) on Tsc. PRM has been previously reported to cause dose-related increases in core temperature after administering oral doses ≥75 mg/kg, with peak effects at 2-4 h in adult rats. We monitored Tsc at 30 min intervals over a 4 h period after exposure to PRM (40-160 mg/kg). PRM caused a moderate increase in Tsc starting at ~3.5 h. Overall, Tsc assays showed minimal animal stress (if any) and rapid animal recovery from transponder implantation, simplicity to collect data, convenient testing room space requirements, and a competitive global cost per animal examined. However, various experimental factors may greatly influence the variability within and between individuals, some of which can be controlled by carefully setting up experimental conditions.
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5
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Viana Cruz DL, Sumita TC, Silva Leão Ferreira M, Soares da Silva J, Pinto ACDS, Marques Barcellos JF, Rafael MS. Histopathological, cytotoxicological, and genotoxic effects of the semi-synthetic compound dillapiole n-butyl ether in Balb/C mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:604-615. [PMID: 32787530 DOI: 10.1080/15287394.2020.1804026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dillapiole n-butyl ether is a substance derived from dillapiole, which exhibits potential insecticidal effects on Aedes aegypti, the principal vector of the Dengue fever, Zika, and Chikungunya viruses, as well as Aedes albopictus, a vector of Dengue fever. As these mosquitoes are resistant to synthetic insecticides, dillapiole n-butyl ether may represent a valuable, plant-based alternative for their control. Dillapiole n-butyl ether has insecticidal and genotoxic effects on A. aegypti and A. albopictus, as shown by the reduction in clutch size and egg viability, and increased mortality rates, as well as a high frequency of micronuclei and chromosomal aberrations. However, the potential cytotoxic and genotoxic effects of this substance in mammals are still unknown. In Balb/C mice, structural changes were detected in hepatic, renal, and cardiac tissues, which were directly proportional to the concentration of the dose applied, in both genders. The induction of genotoxic, mutagenic, and cytotoxic effects was also observed at the highest concentrations (150 and 328 mg/kg). Further research will be necessary to better characterize the potential genotoxicity of this substance at lower concentrations, for the evaluation of the potential health risks related to its presence in environmental features, such as drinking water.
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Affiliation(s)
- Daniel Luís Viana Cruz
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia - INPA , Manaus, AM, Brazil
| | - Tania Cristina Sumita
- Laboratório Temático Biotério Central, Instituto Nacional de Pesquisas da Amazônia - INPA , Manaus, AM, Brazil
| | | | - Junielson Soares da Silva
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia - INPA , Manaus, AM, Brazil
| | - Ana Cristina da Silva Pinto
- Laboratório de Vetores da Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde - COSAS /INPA , Manaus, AM, Brazil
| | | | - Míriam Silva Rafael
- Laboratório de Vetores da Malária e Dengue, Coordenação de Sociedade, Ambiente e Saúde - COSAS /INPA , Manaus, AM, Brazil
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Higgins LG, Chatham LR, Tomczynski SL, MacLeod AK, Moreau M, Clewell HJ, Yoon M, Creek MR, Osimitz TG, Lake BG. Differential lymphatic versus portal vein uptake of the synthetic pyrethroids deltamethrin and cis-permethrin in rats. Toxicology 2020; 443:152563. [PMID: 32805335 DOI: 10.1016/j.tox.2020.152563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/14/2020] [Accepted: 08/10/2020] [Indexed: 10/23/2022]
Abstract
The objective of this study was to obtain data on pathways of absorption of the synthetic pyrethroids deltamethrin (DLM) and cis-permethrin (CPM) following oral administration to rats. Adult male Sprague-Dawley rats with cannulated mesenteric lymph ducts and hepatic portal veins were given single doses of either 5 mg/kg DLM or 60 mg/kg CPM via the duodenum and lymph and portal blood samples collected for up to 300 min. The pyrethroid dosing vehicles (5 mL/kg body weight) were either corn oil or glycerol formal. Levels of DLM and CPM in lymph and portal blood samples were determined by high-performance liquid chromatography-mass spectrometry-mass spectrometry. Over the time period studied, levels of both DLM and CPM following administration in either corn oil or glycerol formal were greater in lymph than in portal blood. Lymphatic uptake of both DLM and CPM was enhanced following dosing in glycerol formal than in corn oil. The results of this study suggest that after oral administration to rats, these two pyrethroids are predominantly absorbed via the lymphatic system rather than via portal blood. The data obtained in this study thus support a recently developed physiologically-based pharmacokinetic (PBPK) model to evaluate age-related differences in pyrethroid pharmacokinetics in the rat, where it was assumed that absorption of pyrethroids was predominantly via lymphatic uptake.
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Affiliation(s)
- Larry G Higgins
- Concept Life Sciences (Formerly CXR Biosciences Ltd.), 2, James Lindsay Place, Dundee Technopole, Dundee, DD1 5JJ, United Kingdom.
| | - Lynsey R Chatham
- Concept Life Sciences (Formerly CXR Biosciences Ltd.), 2, James Lindsay Place, Dundee Technopole, Dundee, DD1 5JJ, United Kingdom
| | - Sara L Tomczynski
- Concept Life Sciences (Formerly CXR Biosciences Ltd.), 2, James Lindsay Place, Dundee Technopole, Dundee, DD1 5JJ, United Kingdom
| | - A Kenneth MacLeod
- Concept Life Sciences (Formerly CXR Biosciences Ltd.), 2, James Lindsay Place, Dundee Technopole, Dundee, DD1 5JJ, United Kingdom
| | - Marjory Moreau
- ScitoVation, LLC, Research Triangle Park, NC, 27709, USA
| | | | - Miyoung Yoon
- ScitoVation, LLC, Research Triangle Park, NC, 27709, USA
| | - Moire R Creek
- Moire Creek Toxicology Consulting Services, Lincoln, CA, 95648, USA
| | | | - Brian G Lake
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK
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Quantification of deltamethrin residues in wheat by Ag@ZnO NFs-based surface-enhanced Raman spectroscopy coupling chemometric models. Food Chem 2020; 337:127652. [PMID: 32799158 DOI: 10.1016/j.foodchem.2020.127652] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 11/22/2022]
Abstract
Deltamethrin, one of the most toxic pyrethroids, is commonly used to inhibit pests in wheat. However, the trace levels of deltamethrin in wheat is alarming to human health. In this study, surface-enhanced Raman spectroscopy (SERS)-active silver nanoparticles-plated-zinc oxide nanoflowers (Ag@ZnO NFs) nano-sensor were employed for rapid and sensitive quantification of deltamethrin in wheat. To sufficiently utilize the chemical-related information in SERS spectra, various spectral pretreatment and chemometric models were studied. The mean centering (MC) coupling successive projection algorithm-partial least squares regression (SPA-PLS) provided optimal predictive performance (correlation coefficient of prediction (Rp) = 0.9736 and residual predictive deviation (RPD) = 4.75). The proposed method achieved the limit of detection (LOD) = 0.16 μg·kg-1, the recovery of predicted results was in the range of 96.33-109.17% and the relative standard deviation (RSD) was < 5%. The overall results suggested that SERS based Ag@ZnO NFs combined with MC-SPA-PLS could be an easy and efficient method to quantify deltamethrin residue levels in wheat.
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8
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Bouaziz C, Graiet I, Salah A, Ben Salem I, Abid S. Influence of bifentrin, a pyrethriod pesticide, on human colorectal HCT-116 cells attributed to alterations in oxidative stress involving mitochondrial apoptotic processes. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:331-340. [PMID: 32364034 DOI: 10.1080/15287394.2020.1755756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The widespread use of pesticides is beneficial for food production; however, there are numerous adverse consequences reported in the ecosystem and humans associated with exposure to these contaminants. The pyrethriod bifenthrin (BIF) is utilized for (1) maintenance, growth, and storage of agricultural products; (2) control of internal and external parasites of farm animals; and (3) eradication of insects threatening public health. Numerous data are available regarding environmental and ecological impact of pyrethriods on the central and peripheral nervous systems; however few studies focused on non-target tissues especially in humans. Therefore, the aim of this investigation was to determine the potential cytotoxic effects of BIF on a non-target tissue using human colorectal HCT-116 cells as a model. Data demonstrated that BIF reduced cell viability and disrupted mitochondrial functions which were accompanied by increased reactive oxygen species (ROS) levels indicating the presence of oxidative stress. BIF produced a significant elevation in levels of malondialdehyde (MDA) supporting the role of oxidative stress in pesticide-mediated toxicity. Concomitantly, a fall of mitochondrial transmembrane potential (Δψ), consequently producing perturbation of fluidity as well as excitability of cellular membranes was noted. Our results also indicated that BIF induced a rise in DNA damage as evidenced by the comet assay. An increase in mitogen-activated protein kinases (MAPKs), JNK (N-terminal Kinase), p38, and ERK (extracellular-signal-regulated kinase) suggested an apoptotic effect. Data thus indicated that BIF-induced cytotoxicity in human colorectal HCT-116 cells was associated with oxidative stress, mitochondrial dysfunction, and apoptosis.
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Affiliation(s)
- Chayma Bouaziz
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne 5019, Monastir University , Tunisia
| | - Imen Graiet
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne 5019, Monastir University , Tunisia
| | - Amal Salah
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne 5019, Monastir University , Tunisia
- Faculty of Sciences of Bizerte, Carthage University , Tunisia
| | - Intidhar Ben Salem
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne 5019, Monastir University , Tunisia
- Faculty of Medicine of Sousse, Sousse University , Tunisia
| | - Salwa Abid
- Laboratory of Research on Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne 5019, Monastir University , Tunisia
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Williams MT, Gutierrez A, Vorhees CV. Effects of Acute Deltamethrin Exposure in Adult and Developing Sprague Dawley Rats on Acoustic Startle Response in Relation to Deltamethrin Brain and Plasma Concentrations. Toxicol Sci 2020; 168:61-69. [PMID: 30395337 DOI: 10.1093/toxsci/kfy275] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Deltamethrin (DLM) is a commonly used pesticide that helps to control crop destruction, disease, and nuisance insects. In rodents DLM can produce choreoathetosis, salivation, and decreased acoustic startle responses (ASR). Herein, adult Sprague Dawley rats were assessed for ASR 2 h after DLM delivered in 5 ml/kg corn oil, however no decrease was observed. Therefore, a test-retest protocol was used to reduce variability, and the effects on ASR on postnatal day 15 (P15) and adult rats were assessed 2, 4, 6, and 8 h after DLM administration (0, 1, 2, or 4 mg/kg for P15 rats and 0, 2, 8, or 25 mg/kg for adults). In a separate set of rats identically treated, DLM levels were determined in blood and brain. DLM (8 or 25 mg/kg) in adult rats decreased ASR up to 4 h, whereas in P15 rats decreases were observed between 2 and 8 h. The adult 25 mg/kg group showed consistent signs of salivation and tremor, whereas in P15 rats salivation was observed in the 2 and 4 mg/kg groups and tremor was observed at all doses over the 8-h period. Mortality was observed in all P15 dose groups but not in adults. Dose-dependent increases of DLM in blood and brain regardless of age were observed. At approximately equivalent whole brain concentrations, effects were more pronounced in P15 rats than in adult rats. Comparable brain levels of DLM do not explain differences in ASR and tremor between the P15 and adult rats. These data indicate age-dependent differences in sensitivity to DLM.
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Affiliation(s)
- Michael T Williams
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229.,Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, Ohio 45229
| | - Arnold Gutierrez
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229.,Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, Ohio 45229.,Scripps Research Institute, Neuroscience, La Jolla, CA 92037
| | - Charles V Vorhees
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio 45229.,Division of Neurology, Cincinnati Children's Research Foundation, Cincinnati, Ohio 45229
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Hwang M, Lee Y, Choi K, Park C. Urinary 3-phenoxybenzoic acid levels and the association with thyroid hormones in adults: Korean National Environmental Health Survey 2012-2014. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 696:133920. [PMID: 31446285 DOI: 10.1016/j.scitotenv.2019.133920] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Owing to insecticidal activity at low doses with relatively low toxicity in humans, synthetic pyrethroids have been used widely for pest control in agricultural and domestic settings. Pyrethroids are suspected for potential endocrine disruption. However, the thyroid disrupting effects of pyrethroids, particularly in humans, is relatively underexplored. OBJECTIVES This study aimed to report 3-phenoxybenzoic acid (3-PBA) concentrations in urine, and assess its association with serum thyroid hormone (TH) levels in a representative adult population of Korea. METHODS Data obtained from representative Korean adults recruited in the Korean National Environmental Health Survey (2nd round, 2012-2014) were analyzed. Urinary 3-PBA levels were associated with serum thyroxine (T4), total triiodothyronine (T3), and thyroid-stimulating hormone (TSH) levels among the Korean adult population. RESULTS Urinary 3-PBA levels among Korean adults were >3 times higher than those reported in Canada and the United States. Urinary 3-PBA levels showed negative association with serum T4, and this pattern was not changed after stratification by sex. For T3, the association varied by sex and exposure levels. Male demonstrated the same inverse association between urinary 3-PBA and T3, but female did not show such association. Among adults in the lower half of urinary 3-PBA levels, the association with T3 was significant, while that among the remainder was marginal. The association with T4 remained significant on sensitivity analysis, after controlling for other urinary chemicals. CONCLUSION Urinary 3-PBA levels in the general Korean adult population were found to be generally higher than those of other countries, and were associated with decreased TH levels. Considering the importance of THs, the public health implications of pyrethroid insecticide exposure warrant further studies.
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Affiliation(s)
- Moonyoung Hwang
- Environmental Health Research Division, National Institute of Environmental Research, Ministry of Environment, Incheon, South Korea
| | - Youngmee Lee
- Environmental Health Research Division, National Institute of Environmental Research, Ministry of Environment, Incheon, South Korea
| | - Kyungho Choi
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, South Korea.
| | - Choonghee Park
- Environmental Health Research Division, National Institute of Environmental Research, Ministry of Environment, Incheon, South Korea.
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11
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Mosquera Ortega ME, Pato AM, Romero DM, Sosa Holt CS, Alvarez G, Ridolfi A, Villaamil Lepori E, Wolansky MJ. Relationship Between the Dose Administered, Target Tissue Dose, and Toxicity Level After Acute Oral Exposure to Bifenthrin and Tefluthrin in Young Adult Rats. Toxicol Sci 2019; 172:225-234. [PMID: 31573616 DOI: 10.1093/toxsci/kfz204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Most pyrethroid insecticides (PYRs) share a similar primary target site in mammals. However, the potency estimates of the lethal and sublethal effects of these compounds differ up to 103-fold. The aim of this study was to evaluate the relationship between the dose administered, the target tissue dose, and the effect of 2 highly toxic PYRs, tefluthrin (TEF; 0.1-9 mg/kg) and bifenthrin (BIF; 0.5-12 mg/kg), by using the oral route, a corn oil vehicle (1 ml/kg) and subcutaneous temperature (Tsc) monitoring assays in adult rats. The Tsc was determined at 30-min intervals for 5 h (TEF) or 4.5 h (BIF) after dosing. Rats were sacrificed at 6 h after dosing, and BIF and TEF concentrations were determined in blood (Bd), liver (Lv), and cerebellum (Cb) by using a GC-ECD system. The minimal effective dose of BIF (3 mg/kg) affecting Tsc was similar to that found in prior studies using other testing paradigms. Regarding TEF, a very steep relationship between the dose administered and toxicity was observed, with a near-threshold to low-effective range for Tsc at 0.1-6 mg/kg, and a near lethal syndrome at ≥ 7.5 mg/kg. At 6-7.5 mg/kg TEF, the Cb/Bd and Cb/Lv concentration ratios were both > 1. Conversely, for BIF, the Cb concentration was barely over the Bd concentration and the Cb/Lv concentration ratio remained < 1. Our results and previous findings call for more comprehensive consideration to establish the relevance of the distribution into target tissues and the tissue dosimetry for health risks through the exposure to PYRs in humans.
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Affiliation(s)
- Mónica Elizabeth Mosquera Ortega
- Departamento Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.,Instituto IQUIBICEN, Consejo Nacional de Investigaciones Científicas, CONICET
| | - Alejandro Martín Pato
- Departamento Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.,Servicio Geológico Minero Argentino (SEGEMAR), San Martin, Provincia de Buenos Aires, Argentina
| | - Delfina Mercedes Romero
- Departamento Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.,Instituto IQUIBICEN, Consejo Nacional de Investigaciones Científicas, CONICET.,Cortical Development and Pathology, Institut du Fer à Moulin, INSERM UMRS 1270, Paris 75005, France
| | - Carla Solange Sosa Holt
- Departamento Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.,Instituto de Virología (CICVyA), Instituto Nacional de Tecnología Agropecuaria (INTA), Castelar, Provincia de Buenos Aires, Argentina
| | - Gloria Alvarez
- Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires
| | - Adriana Ridolfi
- Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires
| | | | - Marcelo Javier Wolansky
- Departamento Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.,Instituto IQUIBICEN, Consejo Nacional de Investigaciones Científicas, CONICET
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12
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Hong T, Li R, Sun LL, Xu J, He MT, Wang W, Yan R, Tong J, Zhang J. Role of the gene Phlda1 in fenvalerate-induced apoptosis and testicular damage in Sprague-Dawley rats. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:870-878. [PMID: 31524104 DOI: 10.1080/15287394.2019.1664584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fenvalerate (FEN), a pyrethroid insecticide used worldwide, has been shown to produce a potentially adverse effect on male reproduction. However the mechanisms are not completely understood. Thus this study aimed to (1) determine whether cellular apoptosis was involved in FEN-induced testicular damage in rats, and (2) identify the potential mechanism involved in FEN-induced apoptosis in testes. Data demonstrated that FEN markedly decreased serum testosterone levels, increased the inner diameter of seminiferous tubules, decreased the layers of spermatogenic cells, disturbed spermatogenesis and increased the number of apoptotic cells. Further, bioinformatic analysis of gene microarray in rat testis tissue showed that FEN significantly altered the expressions of genes (Krt8, Mal, Cd24, Lcn2, Phlda1, Arg2) related to apoptotic related processes. The expression pattern of these 6 genes was upregulated in FEN-treated rat testicular tissue. qRT-PCR analysis demonstrated that Phlda1, a well-documented pro-apoptotic factor, was significantly elevated by FEN. The expression of PHLDA1 testicular protein was also elevated following FEN exposure. In conclusion, our results suggest that FEN exposure induced deleterious effects on rat testes associated with Phlda1-mediated apoptosis which may act as a molecular mechanism underlying FEN induced rat testicular damage.
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Affiliation(s)
- Ting Hong
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Ru Li
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Lu-Lu Sun
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Jie Xu
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Meng-Ting He
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Wei Wang
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Rui Yan
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Jian Tong
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Medical College of Soochow University , Suzhou , Jiangsu , China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases
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Xiang D, Qiao K, Song Z, Shen S, Wang M, Wang Q. Enantioselectivity of toxicological responses induced by maternal exposure of cis-bifenthrin enantiomers in zebrafish (Danio rerio) larvae. JOURNAL OF HAZARDOUS MATERIALS 2019; 371:655-665. [PMID: 30889462 DOI: 10.1016/j.jhazmat.2019.03.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/20/2019] [Accepted: 03/11/2019] [Indexed: 06/09/2023]
Abstract
The maternal transfer and developmental toxicity of chiral contaminants with respect to enantioselectivity have rarely been investigated. Here, the residues and toxicological responses of cis-BF, a typical chiral pesticide, were studied in the progeny of adult zebrafish exposed to cis-BF (0, 20, 100, and 500 ng/L) for 60 days. Cis-BF enantiomers exhibited the equal maternal transfer potentials. GC/MSD analysis showed that parental 1S-cis-BF exposure could disrupt the components of fatty acids in offspring embryos. In transcriptional expression, the whole differentially expressed genes were significantly enriched in GO categories, including the processes related to lipid biosynthesis/metabolism. The perturbations of fatty acids suggested that cis-BF has potential negative impacts on embryos' development. Furthermore, enantioselective growth inhibition and developmental neurotoxicity in larvae were also observed. The mRNA expressions of neuronal development genes were significantly changed in 1S-exposed offspring, so were the levels of the neurotransmitters and larval locomotion. Our results show that the cis-BF induced the growth inhibition and neurotoxicity in zebrafish larvae, which may be mediated by the development interference in embryos related to the disrupted fatty acid composition. Furthermore, the toxicological response to 1S-cis-BF was greater than that to the 1R-enantiomer in the offspring of exposed adults.
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Affiliation(s)
- Dandan Xiang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China; Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Key laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Guangzhou 510640, PR China
| | - Kun Qiao
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
| | - Zhuoying Song
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China; Qiushi College of Zhenjiang University, Hangzhou 310058, PR China
| | - Shuyuan Shen
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China; Qiushi College of Zhenjiang University, Hangzhou 310058, PR China
| | - Mengcen Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
| | - Qiangwei Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China.
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14
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Guo C, Yang Y, Shi MX, Wang B, Liu JJ, Xu DX, Meng XH. Critical time window of fenvalerate-induced fetal intrauterine growth restriction in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:186-193. [PMID: 30708230 DOI: 10.1016/j.ecoenv.2019.01.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/08/2019] [Accepted: 01/12/2019] [Indexed: 06/09/2023]
Abstract
Fenvalerate (FEN), a representative type II pyrethroid, is a widely used pyrethroid insecticide and a potential environmental contaminant. Several studies demonstrated that gestational FEN exposure induced intrauterine growth restriction (IUGR). However, the critical time window of FEN-induced fetal IUGR remains obscure. The present study aimed to identify the critical window of FEN-induced fetal IUGR. Pregnant mice were administered corn oil or FEN (20 mg/kg) by gavage daily at the early gestational stage (GD0-GD6), middle gestational stage (GD7-GD12) or late gestational stage (GD13-GD17). The results showed that the rates of fetal IUGR were markedly increased only in the mice exposed to FEN on GD13-GD17 but not in the mice exposed to FEN on GD7-GD12 or GD0-GD6. Further analysis showed that the blood sinusoid area in the placental labyrinth layer was reduced in the mice exposed to FEN on GD13-GD17. In addition, CD34+ microvessel density in the labyrinthine region was decreased in the male and female fetuses whose mothers were exposed to FEN on GD13-GD17. Mechanistic analysis found that the glutathione level was decreased in the FEN-exposed placentas. In contrast, the levels of 3-nitrotyrosine and malondialdehyde, two oxidative stress markers, were increased in FEN-exposed placentas. Heme oxygenase-1, inducible nitric oxide synthase, catalase and peroxiredoxin-3, which are antioxidant enzymes, were upregulated in the FEN-exposed placentas. The present study suggests that the late gestational stage is a critical time window of FEN-induced fetal IUGR. Placental oxidative stress may be, at least partially, involved in the process of FEN-induced placental damage and fetal IUGR.
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Affiliation(s)
- Ce Guo
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Yang Yang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Meng-Xing Shi
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Bo Wang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Ji-Jie Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - De-Xiang Xu
- Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China; Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, Anhui, China.
| | - Xiu-Hong Meng
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China.
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15
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Mosquera Ortega ME, Romero DM, Pato AM, Sosa-Holt CS, Ridolfi A, Villaamil Lepori E, Wolansky MJ. Relationship between exposure, body burden and target tissue concentration after oral administration of a low-dose mixture of pyrethroid insecticides in young adult rats. Toxicology 2018; 409:53-62. [DOI: 10.1016/j.tox.2018.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 07/01/2018] [Accepted: 07/05/2018] [Indexed: 10/28/2022]
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16
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Williams MT, Gutierrez A, Vorhees CV. Effects of Acute Exposure of Permethrin in Adult and Developing Sprague-Dawley Rats on Acoustic Startle Response and Brain and Plasma Concentrations. Toxicol Sci 2018; 165:361-371. [DOI: 10.1093/toxsci/kfy142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Michael T Williams
- Department of Pediatrics, University of Cincinnati College of Medicine and Division of Neurology, Cincinnati Children’s Research Foundation, Cincinnati, Ohio 45229
| | - Arnold Gutierrez
- Department of Pediatrics, University of Cincinnati College of Medicine and Division of Neurology, Cincinnati Children’s Research Foundation, Cincinnati, Ohio 45229
| | - Charles V Vorhees
- Department of Pediatrics, University of Cincinnati College of Medicine and Division of Neurology, Cincinnati Children’s Research Foundation, Cincinnati, Ohio 45229
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Upper respiratory tract nociceptor stimulation and stress response following acute and repeated Cyfluthrin inhalation in normal and pregnant rats: Physiological rat-specific adaptions can easily be misunderstood as adversities. Toxicol Lett 2018; 282:8-24. [DOI: 10.1016/j.toxlet.2017.10.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/27/2017] [Accepted: 10/02/2017] [Indexed: 11/22/2022]
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18
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Fournier K, Baumont E, Glorennec P, Bonvallot N. Relative toxicity for indoor semi volatile organic compounds based on neuronal death. Toxicol Lett 2017; 279:33-42. [PMID: 28709981 DOI: 10.1016/j.toxlet.2017.07.875] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 07/03/2017] [Accepted: 07/09/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Semi Volatile Organic Compounds (SVOCs) are contaminants commonly found in dwellings as a result of their use as plasticizers, flame retardants, or pesticides in building materials and consumer products. Many SVOCs are suspected of being neurotoxic, based on mammal experimentation (impairment of locomotor activity, spatial learning/memory or behavioral changes), raising the question of cumulative risk assessment. The aim of this work is to estimate the relative toxicity of such SVOCs, based on neuronal death. METHOD SVOCs fulfilling the following conditions were included: detection frequency >10% in dwellings, availability of data on effects or mechanism of action for neurotoxicity, and availability of dose-response relationships based on cell viability assays as a proxy of neuronal death. Benchmark concentration values (BMC) were estimated using a Hill model, and compared to assess relative toxicity. RESULTS Of the 58 SVOCs selected, 28 were suspected of being neurotoxic in mammals, and 21 have been documented as inducing a decrease in cell viability in vitro. 13 have at least one dose-response relationship that can be used to derive a BMC based on a 10% fall in neuronal viability. Based on this in vitro endpoint, PCB-153 appeared to be the most toxic compound, having the lowest BMC10 (0.072μM) and diazinon the least toxic compound, having the highest BMC10 (94.35μM). We showed that experimental designs (in particular choice of cell lines) had a significant influence on BMC calculation. CONCLUSION For the first time, the relative in vitro toxicity of 13 indoor contaminants belonging to different chemical families has been assessed on the basis of neuronal cell viability. Lack of comparable toxicity datasets limits the number of SVOCs that can be included. More standardized protocols in terms of cell lines, species and exposure duration should be developed with a view to cumulative risk assessment.
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Affiliation(s)
- Kevin Fournier
- EHESP School of Public Health, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard, 35043 Rennes Cedex, France; INSERM UMR1085 IRSET (Research Institute in Environmental and Occupational Health), Rennes, France.
| | - Emmanuel Baumont
- EHESP School of Public Health, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard, 35043 Rennes Cedex, France; INSERM UMR1085 IRSET (Research Institute in Environmental and Occupational Health), Rennes, France.
| | - Philippe Glorennec
- EHESP School of Public Health, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard, 35043 Rennes Cedex, France; INSERM UMR1085 IRSET (Research Institute in Environmental and Occupational Health), Rennes, France.
| | - Nathalie Bonvallot
- EHESP School of Public Health, Sorbonne Paris Cité, Avenue du Professeur Léon Bernard, 35043 Rennes Cedex, France; INSERM UMR1085 IRSET (Research Institute in Environmental and Occupational Health), Rennes, France.
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19
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Madhubabu G, Yenugu S. Allethrin toxicity causes reproductive dysfunction in male rats. ENVIRONMENTAL TOXICOLOGY 2017; 32:1701-1710. [PMID: 28181402 DOI: 10.1002/tox.22394] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/31/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
Pyrethroids are widely used for domestic and agricultural purposes and their use is increasing, especially in developing countries. Uncontrolled use of these insecticides resulted in their entry into the food chain thereby causing toxicity to different organ systems. Allethrin is one of the widely used pyrethroids, but its toxicological effects are underreported when compared to other pyrethroids. Further, its effects on the male reproductive tract remain uncharacterized. In this study, its toxicity on the male reproductive tract was evaluated by administering 25-150 mg/kg body weight allethrin to adult rats for 60 days. The mRNA expression of factors that are important in spermatogenesis (Scf, c-Kit, Hsf2, Ovol1, Brdt, Kdm3A, Ybx-2, and Grth) and steroidogenesis (StAR, 3β-HSD, 17β-HSD) was significantly downregulated. Decreased levels of testosterone, reduced sperm count and daily sperm production was also observed due to allethrin toxicity. However, sperm quality parameters assessed by computer-assisted sperm analyzer were not affected. Spermatozoa obtained from allethrin-treated rats failed to undergo acrosome reaction. Results of this study indicate that allethrin affects spermatogenesis and sperm function, thus lending further support to the growing evidence of its toxicity.
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Affiliation(s)
- Golla Madhubabu
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Suresh Yenugu
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
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20
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Han J, Ji C, Guo Y, Yan R, Hong T, Dou Y, An Y, Tao S, Qin F, Nie J, Ji C, Wang H, Tong J, Xiao W, Zhang J. Mechanisms underlying melatonin-mediated prevention of fenvalerate-induced behavioral and oxidative toxicity in zebrafish. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:1331-1341. [PMID: 29144200 DOI: 10.1080/15287394.2017.1384167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The neurotoxic effects attributed to the pesticide fenvalerate (FEN) are well-established. The aim of this study was to determine whether melatonin (MLT) was able to protect against FEN-induced behavior, oxidative stress, apoptosis, and neurogenesis using zebrafish (Danio rerio) model. Zebrafish exposed to 100 μg/L FEN for 120 h exhibited decreased swimming activity accompanied by downregulated expression of neurogenesis-related genes (Dlx2, Shha, Ngn1, Elavl3, and Gfap), suggesting that neurogenesis were impaired. In addition, FEN exposure significantly elevated oxidative stress as evidenced by increased malondialdehyde levels, as well as activities of Cu/Zn superoxide dismutase (Cu/Zn SOD), catalase, and glutathione peroxidase. Acridine orange staining demonstrated that embryos treated with FEN for 120 h significantly enhanced apoptosis mainly in the brain. FEN also produced upregulation of the expression of the pro-apoptotic genes (Bax, Fas, caspase 8, caspase 9, and caspase 3) and decreased expression of the anti-apoptotic gene Bcl-2. MLT significantly attenuated the FEN-mediated oxidative stress, modulated apoptotic-regulating genes, and diminished apoptotic responses. Further, MLT blocked the FEN-induced effects on swimming behavior as well as on neurogenesis-related genes. In conclusion, MLT protected against FEN-induced developmental neurotoxicity and apoptosis by inhibiting pesticide-mediated oxidative stress in zebrafish.
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Affiliation(s)
- Jingjing Han
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Cheng Ji
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
- e School of Biology and Basic Medical Sciences, Medical College , Soochow University , Suzhou , China
| | - Yichen Guo
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Rui Yan
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Ting Hong
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Yuanyan Dou
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Yan An
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Shasha Tao
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Fenju Qin
- c Department of Biological Science and Technology , Suzhou University of Science and Technology , Suzhou China
| | - Jihua Nie
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Chen Ji
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
| | - Han Wang
- d Center for Circadian Clocks , Soochow University , Suzhou , Jiangsu , China
- e School of Biology and Basic Medical Sciences, Medical College , Soochow University , Suzhou , China
| | - Jian Tong
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
| | - Wei Xiao
- a School of Public Health , Medical College of Soochow University , Suzhou China
| | - Jie Zhang
- a School of Public Health , Medical College of Soochow University , Suzhou China
- b Department of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Genetic Diseases , Suzhou , China
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21
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Parker S, May B, Zhang C, Zhang AL, Lu C, Xue CC. A Pharmacological Review of Bioactive Constituents ofPaeonia lactifloraPallas andPaeonia veitchiiLynch. Phytother Res 2016; 30:1445-73. [DOI: 10.1002/ptr.5653] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/05/2016] [Accepted: 05/05/2016] [Indexed: 01/29/2023]
Affiliation(s)
- Shefton Parker
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
| | - Brian May
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
| | - Claire Zhang
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
| | - Anthony Lin Zhang
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
| | - Chuanjian Lu
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
- Guangdong Provincial Hospital of Chinese Medicine; Guangzhou China
- Guangdong Provincial Academy of Chinese Medical Sciences; Guangzhou China
- The Second Clinical College; Guangzhou University of Chinese Medicine; Guangzhou China
| | - Charlie Changli Xue
- China-Australia International Research Centre for Chinese Medicine, School of Health and Biomedical Sciences; RMIT University; PO Box 71 Bundoora Victoria 3083 Australia
- Guangdong Provincial Hospital of Chinese Medicine; Guangzhou China
- Guangdong Provincial Academy of Chinese Medical Sciences; Guangzhou China
- The Second Clinical College; Guangzhou University of Chinese Medicine; Guangzhou China
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22
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Svartz GV, Aronzon CM, Pérez Coll CS. Combined endosulfan and cypermethrin-induced toxicity to embryo-larval development of Rhinella arenarum. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2016; 79:197-209. [PMID: 26914601 DOI: 10.1080/15287394.2015.1126211] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The combined effects of two widely used pesticides, endosulfan and cypermethrin, on survival of embryo-larval development of the South American toad (Rhinella arenarum) were examined. The toxicity bioassays were performed according to the AMPHITOX test. Embryos and larvae were exposed to mixtures of these pesticides at equitoxic ratios from acute or chronic exposure to evaluate interaction effects. The results were analyzed using both Marking's additive index and combination index (CI)-isobologram methods. Acute (96-h) and intermediate (168-h) toxicity of endosulfan-cypermethrin mixtures remained almost constant for larvae and embryos, but when exposure duration was increased, there was a significant elevation in toxicity, obtaining chronic (240-h) no-observed-effect concentrations (NOEC) values of 0.045 and 0.16 mg/L for embryos and larvae, respectively. These are environmentally relevant concentrations that reflect a realistic risk of this pesticide mixture to this native amphibian species. The toxicity increment with the exposure duration was coincident with the central nervous system development on embryos reaching the larval period, the main target organ of these pesticides. The interactions of the pesticide mixtures at acute and chronic exposure were antagonistic for embryo development (CI > 1), and additive (CI = 1) for larvae, while chronic exposure interactions were synergistic (CI < 1) for both developmental periods. Data indicated that endosulfan-cypermethrin mixtures resulted in different interaction types depending on duration and developmental stage exposed. As a general pattern and considering conditions of overall developmental period and chronic exposure, this pesticide mixture usually applied in Argentine crop fields is synergistic with respect to toxicity for this native amphibian species.
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Affiliation(s)
- Gabriela V Svartz
- a Instituto de Investigación e Ingeniería Ambiental (3iA) y Escuela de Ciencia y Tecnología (ECyT), Universidad Nacional de San Martín (UNSAM) , San Martín , Buenos Aires , Argentina
| | - Carolina M Aronzon
- a Instituto de Investigación e Ingeniería Ambiental (3iA) y Escuela de Ciencia y Tecnología (ECyT), Universidad Nacional de San Martín (UNSAM) , San Martín , Buenos Aires , Argentina
| | - Cristina S Pérez Coll
- a Instituto de Investigación e Ingeniería Ambiental (3iA) y Escuela de Ciencia y Tecnología (ECyT), Universidad Nacional de San Martín (UNSAM) , San Martín , Buenos Aires , Argentina
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23
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Hughes MF, Edwards BC. In vivo dermal absorption of pyrethroid pesticides in the rat. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2016; 79:83-91. [PMID: 26817658 DOI: 10.1080/15287394.2015.1109571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Exposure to pyrethroid pesticides is a potential cause for concern. The objective of this study was to examine the in vivo dermal absorption of bifenthrin, deltamethrin, and permethrin in the rat. Dorsal hair on adult male Long-Evans rats was removed. The next day, the skin was dosed with 1750 nmol (312.5 nmol/cm(2)) of radiolabeled (5 µCi) bifenthrin, deltamethrin, or permethrin in acetone. A nonoccluding plastic cover was glued over the dosing site. The animals were placed in metabolism cages to collect excreta. At 24 h postdosing, the skin was washed with soap and water, and rats in one group were euthanized and their tissues were collected. The skin was removed and tape stripped. The remaining animals were returned to the metabolism cages after the wash for 4 d. These rats were then euthanized and handled as already described. Excreta, wash, tape strips, tissues, and carcass were analyzed for pyrethroid-derived radioactivity. The wash and tape strips removed >50% of the dose and skin retained 9-24%. Cumulative radioactivity in excreta was 0.5-7% at 24 h and 3-26% at 120 h. Radioactivity in tissues was <0.3% of the dose, while carcass retained 2 to 5%. Assuming absorption equals cumulative recovery in skin (washed and tape stripped), excreta, tissues, and carcass, absorption was permethrin ~ bifenthrin > deltamethrin at 24 h and permethrin > deltamethrin > bifenthrin at 120 h. Using the parallelogram approach with published in vitro data, human dermal absorption of these pyrethroids was estimated to be <10% of the dose.
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Affiliation(s)
- Michael F Hughes
- a U.S. Environmental Protection Agency , Research Triangle Park, North Carolina , USA
| | - Brenda C Edwards
- a U.S. Environmental Protection Agency , Research Triangle Park, North Carolina , USA
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Arukwe A, Carteny CC, Eggen T. Lipid peroxidation and oxidative stress responses in juvenile salmon exposed to waterborne levels of the organophosphate compounds tris(2-butoxyethyl)- and tris(2-chloroethyl) phosphates. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2016; 79:515-25. [PMID: 27484134 DOI: 10.1080/15287394.2016.1171978] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
There is limited knowledge on the toxicological, physiological, and molecular effects attributed to organophosphate (OP) compounds currently used as flame retardants or additives in consumer products. This study investigated the effects on oxidative stress and lipid peroxidation in juvenile Atlantic salmon liver and brain samples after exposure to two OP compounds, tris(2-butoxyethyl) phosphate (TBOEP) and tris(2-chloroethyl) phosphate (TCEP). In this study, groups of juvenile Atlantic salmon were exposed using a semistatic experimental protocol over a 7-d period to 3 different concentrations (0.04, 0.2, or 1 mg/L) of TBOEP and TCEP. When toxicological factors such as bioaccumulation and bioconcentration, and chemical structural characteristics and behavior, including absorption to solid materials, are considered, these concentrations represent environmentally relevant concentrations. The concentrations of the contaminants were derived from levels of their environmental occurrence. The expression of genes related to oxidative stress-glutathione peroxidase (GPx), glutathione reductase (GR), glutathione S-transferase (GST)-and to lipid peroxidation-peroxisome proliferator-activated receptors (PPAR)-were determined using quantitative (real-time) polymerase chain reaction (PCR). The presence of PPAR proteins was also investigated using immunochemical methods. Levels of thiobarbituric acid-reactive substances (TBARS) in liver were used as a measure of lipid peroxidation. Overall, our data show an increase in lipid peroxidation, and this was associated with an augmented expression of genes from the glutathione family of responses. Interestingly, PPAR expression in liver after exposure to TBOEP and TCEP was consistently decreased compared to controls, while expression in brain did not show a similar trend. The results suggest that OP contaminants may induce oxidative stress and thus production of reactive oxygen substances (ROS), and modulate lipid peroxidation processes in organisms.
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Affiliation(s)
- Augustine Arukwe
- a Department of Biology , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
| | - Camilla Catarci Carteny
- a Department of Biology , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
| | - Trine Eggen
- b Norwegian Institute of Bioeconomy Research (NIBIO), Ås , Norway
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Bardullas U, Sosa-Holt CS, Pato AM, Nemirovsky SI, Wolansky MJ. Evidence for effects on thermoregulation after acute oral exposure to type I and type II pyrethroids in infant rats. Neurotoxicol Teratol 2015; 52:1-10. [DOI: 10.1016/j.ntt.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/04/2015] [Accepted: 09/09/2015] [Indexed: 10/23/2022]
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Saillenfait AM, Ndiaye D, Sabaté JP. Pyrethroids: Exposure and health effects – An update. Int J Hyg Environ Health 2015; 218:281-92. [DOI: 10.1016/j.ijheh.2015.01.002] [Citation(s) in RCA: 253] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/08/2015] [Accepted: 01/08/2015] [Indexed: 11/29/2022]
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Hofmann JN, Beane Freeman LE, Lynch CF, Andreotti G, Thomas KW, Sandler DP, Savage SA, Alavanja MC. The Biomarkers of Exposure and Effect in Agriculture (BEEA) Study: Rationale, Design, Methods, and Participant Characteristics. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:1338-47. [PMID: 26555155 PMCID: PMC4674328 DOI: 10.1080/15287394.2015.1091414] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Agricultural exposures including pesticides, endotoxin, and allergens have been associated with risk of various cancers and other chronic diseases, although the biological mechanisms underlying these associations are generally unclear. To facilitate future molecular epidemiologic investigations, in 2010 the study of Biomarkers of Exposure and Effect in Agriculture (BEEA) was initiated within the Agricultural Health Study, a large prospective cohort in Iowa and North Carolina. Here the design and methodology of BEEA are described and preliminary frequencies for participant characteristics and current agricultural exposures are reported. At least 1,600 male farmers over 50 years of age will be enrolled in the BEEA study. During a home visit, participants are asked to complete a detailed interview about recent agricultural exposures and provide samples of blood, urine, and (since 2013) house dust. As of mid-September 2014, in total, 1,233 participants have enrolled. Most of these participants (83%) were still farming at the time of interview. Among those still farming, the most commonly reported crops were corn (81%) and soybeans (74%), and the most frequently noted animals were beef cattle (35%) and hogs (13%). There were 861 (70%) participants who reported occupational pesticide use in the 12 months prior to interview; among these participants, the most frequently noted herbicides were glyphosate (83%) and 2,4-D (72%), and most commonly reported insecticides were malathion (21%), cyfluthrin (13%), and permethrin (12%). Molecular epidemiologic investigations within BEEA have the potential to yield important new insights into the biological mechanisms through which these or other agricultural exposures influence disease risk.
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Affiliation(s)
- Jonathan N. Hofmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | | | | | - Gabriella Andreotti
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Kent W. Thomas
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, Research Triangle Park, NC
| | - Sharon A. Savage
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Michael C. Alavanja
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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