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Sirikanyaporn S, Nankongnab N, Kongtip P, Siri S, Suk WA, Woskie SR. Exposure of Young Children to Permethrin and Cypermethrin Insecticides in the Residential Environment. TOXICS 2024; 12:477. [PMID: 39058129 PMCID: PMC11280751 DOI: 10.3390/toxics12070477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024]
Abstract
The aims of this study were to evaluate the exposure to permethrin and cypermethrin of young children aged between 2 and 5 years in Nakhon Pathom and Sing Buri provinces, Thailand. A questionnaire that included general demographic information, household characteristics, insecticide usage and exposure-related behavior in children was used to interview parents or family caregivers. Permethrin and cypermethrin concentrations on floor surfaces and children's hands, as well as their urinary metabolites, were analyzed by gas chromatography coupled with mass spectrometry. The results showed that permethrin and cypermethrin were detected in 62% and 83% of the children's hand wipe samples, with geometric mean (GM) levels of 0.02 µg and 0.04 µg, respectively. Permethrin and cypermethrin were detected in 79% and 93% of floor surface wipe samples, with GM levels of 0.90 µg/m2, and 1.49 µg/m2, respectively. For children's urine, the GM concentrations of cis- and trans-DCCA, 3-PBA, and total pyrethroid metabolites were 0.84, 0.31 and 1.23 nmol/g creatinine, respectively. This study found that household insecticide product usage and having a tile floor were associated with increased permethrin concentrations on the children's hands and floor surfaces. However, cypermethrin concentrations on floor surfaces were significantly higher in families using aerosol insecticide sprays and insecticide products in the living room and bedroom. The predictors of the total pyrethroid, DCCA and 3-PBA metabolites are permethrin on children's hands or floor surfaces and cypermethrin on floor surfaces.
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Affiliation(s)
- Siriporn Sirikanyaporn
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (S.S.); (P.K.)
- Public Health, Mahidol University, Amnatcharoen Campus, Amnatcharoen 37000, Thailand
| | - Noppanun Nankongnab
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (S.S.); (P.K.)
| | - Pornpimol Kongtip
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand; (S.S.); (P.K.)
| | - Sukhontha Siri
- Department of Epidemiology, Faculty of Public Health, Mahidol University, Bangkok 10400, Thailand;
| | - William Alfred Suk
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, 135 Dauer Drive, Chapel Hill, NC 27599, USA;
| | - Susan Renee Woskie
- Department of Public Health, University of Massachusetts Lowell, 61 Wilder St., Lowell, MA 01854, USA;
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Wang Y, Hermetz K, Burt A, Kennedy EM, Lesseur C, Panuwet P, Fiedler N, Prapamontol T, Suttiwan P, Naksen W, B Barr D, Hao K, Chen J, Marsit CJ. Placental transcriptome variation associated with season, location, and urinary prenatal pyrethroid metabolites of Thai farm-working women. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123873. [PMID: 38554839 PMCID: PMC11070292 DOI: 10.1016/j.envpol.2024.123873] [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: 11/21/2023] [Revised: 03/21/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Prenatal exposure to pyrethroids is linked to adverse health effects in early life and proper placental function is critical to fetal development. This study explores the impact of prenatal pyrethroid exposure, as well as factors impacting exposure and effect, on the placental transcriptome, to understand pyrethroid exposures' relationship to placental function. The study of Asian Women and their Offspring's Development and Environmental Exposures (SAWASDEE) recruited pregnant farm-working women from two agricultural districts in the Chiang Mai province of Thailand between 2017 and 2019. This cohort was predominantly exposed to cypermethrin (type II), alongside pyrethroids such as cyfluthrin (type II) and permethrin (type I). In 253 participants, maternal urinary pyrethroid metabolites, 3-phenoxybenzoic acid (PBA), cis-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (CDCCA), and trans-3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (TDCCA) were measured in early, middle, and late pregnancy and adjusted for urinary creatinine. The placental transcriptome was analyzed using RNA-Seq. Using generalized linear regression, we identified differentially expressed genes (DEGs) associated with the sum of each metabolite across pregnancy, as well as those associated with location of residence and season of birth. Pathway and upstream transcription factor analyses were performed to examine potential mechanisms associated with DEGs. Notably, TDCCA and CDCCA levels peaked in late pregnancy, with significant regional differences, particularly higher levels in the Fang region. Placental gene expression analysis showed no DEGs associated with individual metabolites at FDR<0.05. However, 251 DEGs by location, implicating immune response and oxidative phosphorylation pathways, were identified, while season of birth was associated with 2585 DEGs, over-represented in fibrosis signaling and metabolism pathways. Finally, transcription factor analysis identified 226 and 282 transcription factors associated with location and season, respectively, related to cell proliferation, differentiation, and the immune system. These alterations may have significant implications for fetal development and other pathologic processes, highlighting the importance of monitoring environmental exposures during pregnancy.
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Affiliation(s)
- Yewei Wang
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Karen Hermetz
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Amber Burt
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Elizabeth M Kennedy
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Corina Lesseur
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Parinya Panuwet
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Nancy Fiedler
- Rutgers University School of Public Health, Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA
| | - Tippawan Prapamontol
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Panrapee Suttiwan
- Life Di Center, Faculty of Psychology, Chulalongkorn University, Bangkok, Thailand
| | - Warangkana Naksen
- Faculty of Public Health, Chiang Mai University, Chiang Mai, Thailand
| | - Dana B Barr
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Ke Hao
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Carmen J Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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Tremongkoltip A, Pengpumkiat S, Kongtip P, Nankongnab N, Siri S, Woskie S. Urinary Cypermethrin Metabolites among Conventional and Organic Farmers in Thailand. TOXICS 2023; 11:507. [PMID: 37368607 PMCID: PMC10305172 DOI: 10.3390/toxics11060507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/28/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023]
Abstract
Cypermethrin, a pyrethroid insecticide, is frequently spread on agricultural farmlands and is also used in households in Thailand. Conventional pesticide-using farmers (n = 209) were recruited from the Phitsanulok and Nakornsawan provinces. Certified organic farmers (n = 224) were also recruited in the Yasothorn province. The farmers were interviewed via a questionnaire and the urine from their first morning void was collected. The urine samples were analyzed for 3-phenoxybenzoic acid (3-PBA), cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (cis-DCCA), and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (trans-DCCA). The results showed no significant difference in the urinary cypermethrin metabolites between the conventional farmers and the organic farmers, for whom the usage of cypermethrin was not accounted for. However, when conventional farmers who used cypermethrin on the farm and in the home were compared with conventional farmers who did not use any cypermethrin or with organic farmers, a significant difference was noted for all metabolites except for trans-DCCA. These findings show that the most significant exposures to cypermethrin are among conventional farmers who use the insecticide on their farms or in their homes. However, measurable levels of all metabolites were found among both conventional and organic farmers who only used cypermethrin in the home or not at all, suggesting that the at-home use of pyrethroids and other possible exposures from pyrethroid residues on market-bought food may contribute to urinary levels of pyrethroids that exceed those of the general population in the US and Canada.
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Affiliation(s)
- Atima Tremongkoltip
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand
| | - Sumate Pengpumkiat
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand
| | - Pornpimol Kongtip
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand
| | - Noppanun Nankongnab
- Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand
| | - Sukhontha Siri
- Department of Epidemiology, Mahidol University, 420/1 Rajvidhi Road, Bangkok 10400, Thailand
| | - Susan Woskie
- Department of Public Health, University of Massachusetts Lowell, 61 Wilder St., Lowell, MA 01854, USA
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El-Moghazy AY, Amaly N, Sun G, Nitin N. Development and clinical evaluation of commercial glucose meter coupled with nanofiber based immuno-platform for self-diagnosis of SARS-CoV-2 in saliva. Talanta 2022. [DOI: 10.1016/j.talanta.2022.124117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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El-Moghazy AY, Wisuthiphaet N, Yang X, Sun G, Nitin N. Electrochemical biosensor based on genetically engineered bacteriophage T7 for rapid detection of Escherichia coli on fresh produce. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108811] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Nkiliza A, Joshi U, Evans JE, Ait-Ghezala G, Parks M, Crawford F, Mullan M, Abdullah L. Adaptive Immune Responses Associated with the Central Nervous System Pathology of Gulf War Illness. Neurosci Insights 2021; 16:26331055211018458. [PMID: 34104887 PMCID: PMC8155779 DOI: 10.1177/26331055211018458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
Gulf War Illness is a multisymptomatic condition which affects 30% of veterans
from the 1991 Gulf War. While there is evidence for a role of peripheral
cellular and humoral adaptive immune responses in Gulf War Illness, a potential
role of the adaptive immune system in the central nervous system pathology of
this condition remains unknown. Furthermore, many of the clinical features of
Gulf War Illness resembles those of autoimmune diseases, but the biological
processes are likely different as the etiology of Gulf War Illness is linked to
hazardous chemical exposures specific to the Gulf War theatre. This review
discusses Gulf War chemical–induced maladaptive immune responses and a potential
role of cellular and humoral immune responses that may be relevant to the
central nervous system symptoms and pathology of Gulf War Illness. The
discussion may stimulate investigations into adaptive immunity for developing
novel therapies for Gulf War Illness.
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Zhang C, Wu X, Li D, Hu J, Wan D, Zhang Z, Hammock BD. Development of nanobody-based flow-through dot ELISA and lateral-flow immunoassay for rapid detection of 3-phenoxybenzoic acid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1757-1765. [PMID: 33861243 PMCID: PMC8442667 DOI: 10.1039/d1ay00129a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As a major metabolite of pyrethroid pesticides, 3-phenoxybenzoic acid (3-PBA) can be an indicator of health risk and human exposure assessment. Based on nanobodies (Nbs), we have developed a rapid flow-through dot enzyme linked immunosorbent assay (dot ELISA) and gold nanoparticle (GNP) lateral-flow immunoassay for detecting 3-PBA. The limit of detection (LOD) values for detecting 3-PBA by flow-through dot ELISA and GNP lateral-flow immunoassay were 0.01 ng mL-1 and 0.1 ng mL-1, respectively. The samples (urine and lake water) with and without 3-PBA were detected by both nanobody-based flow-through dot ELISA and GNP lateral-flow immunoassay, as well as liquid chromatography-mass spectrometry (LC-MS) for validation. There was good consistency between the results of the immunoassays. This demonstrated that the two developed nanobody-based immunoassays are suitable for rapid detection of 3-PBA.
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Affiliation(s)
- Can Zhang
- School of Food & Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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Guvenc D, Inal S, Kuruca N, Gokmen S, Guvenc T. Synthetic pyrethroids common metabolite 3-phenoxybenzoic acid induces caspase-3 and Bcl-2 mediated apoptosis in human hepatocyte cells. Drug Chem Toxicol 2021; 45:1971-1977. [PMID: 33706615 DOI: 10.1080/01480545.2021.1894720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Synthetic pyrethroids are a group of insecticides frequently used in public health and agriculture, and 3-PBA is a common metabolite of them. Although the liver is the primary organ responsible for metabolizing many compounds including pesticides, to the authors' knowledge there have been no studies on the direct hepatotoxic effects of 3-PBA. Therefore, this study aimed to investigate the possible hepatotoxic effects of 3-PBA on a Human Hepatoma Cell Line (HepG2) and the underlying apoptotic mechanisms. Firstly, an LC50 of 1041.242 µM was calculated for 3-PBA by using the WST-1 test with concentrations ranging between 1 µM and 10 mM. Following that, the HepG2 cells in the experimental group were exposed to 3 different concentrations of 3-PBA (1/5 LC50, 1/10 LC50 and 1/20 LC50) for 24 hours. The apoptotic mechanism was evaluated by using flow cytometry, and immunofluorescence assays for Caspase 3 and Bcl-2. In the flow cytometry assay, the total number of apoptotic cells increased in a dose dependent manner (p < 0.05). In the immunofluorescence assay, the Caspase 3 protein showed strong immunoreactivity in the experimental groups, while the reaction to the Bcl-2 protein was minimal. These results demonstrated that 3-PBA has a significant hepatotoxic effect on HepG2 cells and induces apoptosis via the regulation of Caspase-3 and Bcl-2. Furthermore, our results could further the understanding of the fundamental molecular mechanisms of 3-PBA hepatotoxicity. More studies are needed to determine the effects of long-term exposure to 3-PBA and also the molecular mechanisms underlying hepatotoxicity.
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Affiliation(s)
- Dilek Guvenc
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Sinem Inal
- Department of Pathology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Nilufer Kuruca
- Department of Pathology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
| | - Sedat Gokmen
- Department of Laborant and Veterinary Health, Suluova Vocational School, Amasya University, Amasya, Turkey
| | - Tolga Guvenc
- Department of Pathology, Faculty of Veterinary Medicine, University of Ondokuz Mayis, Samsun, Turkey
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Yao J, Wang Z, Guo L, Xu X, Liu L, Xu L, Song S, Xu C, Kuang H. Advances in immunoassays for organophosphorus and pyrethroid pesticides. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116022] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Wang Q, Shen JY, Zhang R, Hong JW, Li Z, Ding Z, Wang HX, Zhang JP, Zhang MR, Xu LC. Effects and mechanisms of pyrethroids on male reproductive system. Toxicology 2020; 438:152460. [PMID: 32278050 DOI: 10.1016/j.tox.2020.152460] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 12/21/2022]
Abstract
Synthetic pyrethroids are used as insecticides in agriculture and a variety of household applications worldwide. Pyrethroids are widely distributed in all environmental compartments and the general populations are exposed to pyrethroids through various routes. Pyrethroids have been identified as endocrine-disrupting chemicals (EDCs) which are responsible for the male reproductive impairments. The data confirm pyrethroids cause male reproductive damages. The insecticides exert the toxic effects on male reproductive system through various complex mechanisms including antagonizing androgen receptor (AR), inhibiting steroid synthesis, affecting the hypothalamic-pituitary-gonadal (HPG) axis, acting as estrogen receptor (ER) modulators and inducing oxidative stress. The mechanisms of male reproductive toxicity of pyrethroids involve multiple targets and pathways. The review will provide further insight into pyrethroid-induced male reproductive toxicity and mechanisms, which is crucial to preserve male reproductive health.
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Affiliation(s)
- Qi Wang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jun-Yu Shen
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Rui Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jia-Wei Hong
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Zheng Li
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Zhen Ding
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Heng-Xue Wang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jin-Peng Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Mei-Rong Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Li-Chun Xu
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China.
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El-Moghazy AY, Huo J, Amaly N, Vasylieva N, Hammock BD, Sun G. An Innovative Nanobody-Based Electrochemical Immunosensor Using Decorated Nylon Nanofibers for Point-of-Care Monitoring of Human Exposure to Pyrethroid Insecticides. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6159-6168. [PMID: 31927905 PMCID: PMC7799635 DOI: 10.1021/acsami.9b16193] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A novel ultrasensitive nanobody-based electrochemical immunoassay was prepared for assessing human exposure to pyrethroid insecticides. 3-Phenoxybenzoic acid (3-PBA) is a common human urinary metabolite for numerous pyrethroids, which broadly served as a biomarker for following the human exposure to this pesticide group. The 3-PBA detection was via a direct competition for binding to alkaline phosphatase-embedded nanobodies between free 3-PBA and a 3-PBA-bovine serum albumin conjugate covalently immobilized onto citric acid-decorated nylon nanofibers, which were incorporated on a screen-printed electrode (SPE). Electrochemical impedance spectroscopy (EIS) was utilized to support the advantage of the employment of nanofibrous membranes and the success of the immunosensor assembly. The coupling between the nanofiber and nanobody technologies provided an ultrasensitive and selective immunosensor for 3-PBA detection in the range of 0.8 to 1000 pg mL-1 with a detection limit of 0.64 pg mL-1. Moreover, when the test for 3-PBA was applied to real samples, the established immunosensor proved to be a viable alternative to the conventional methods for 3-PBA detection in human urine even without sample cleanup. It showed excellent properties and stability over time.
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Affiliation(s)
- Ahmed Y. El-Moghazy
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | - Jingqian Huo
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Noha Amaly
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City 21934, Alexandria, Egypt
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Gang Sun
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, USA
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A label-free optical whole-cell Escherichia coli biosensor for the detection of pyrethroid insecticide exposure. Sci Rep 2019; 9:12466. [PMID: 31462650 PMCID: PMC6713742 DOI: 10.1038/s41598-019-48907-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 08/13/2019] [Indexed: 11/15/2022] Open
Abstract
There is a growing need for low-cost, portable technologies for the detection of threats to the environment and human health. Here we propose a label-free, optical whole-cell Escherichia coli biosensor for the detection of 3-phenoxybenzoic acid (3-PBA), a biomarker for monitoring human exposure to synthetic pyrethroid insecticides. The biosensor functions like a competitive ELISA but uses whole-cells surface displaying an anti-3-PBA VHH as the detection element. When the engineered cells are mixed with 3-PBA-protein conjugate crosslinking that can be visually detected occurs. Free 3-PBA in samples competes with these crosslinks, leading to a detectable change in the output. The assay performance was improved by coloring the cells via expression of the purple-blue amilCP chromoprotein and the VHH expression level was reduced to obtain a limit of detection of 3 ng/mL. The optimized biosensor exhibited robust function in complex sample backgrounds such as synthetic urine and plasma. Furthermore, lyophilization enabled storage of biosensor cells for at least 90 days without loss of functionality. Our whole-cell biosensor is simple and low-cost and therefore has potential to be further developed as a screening tool for monitoring exposure to pyrethroids in low-resource environments.
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Maule AL, Scarpaci MM, Proctor SP. Urinary concentrations of permethrin metabolites in US Army personnel in comparison with the US adult population, occupationally exposed cohorts, and other general populations. Int J Hyg Environ Health 2019; 222:355-363. [DOI: 10.1016/j.ijheh.2019.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 02/02/2019] [Accepted: 02/12/2019] [Indexed: 01/16/2023]
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Hongsibsong S, Prapamontol T, Dong JX, Bever CS, Xu ZL, Gee SJ, Hammock BD. Exposure of consumers and farmers to organophosphate and synthetic pyrethroid insecticides in Northern Thailand. J Verbrauch Lebensm 2019. [DOI: 10.1007/s00003-019-01207-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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The Pesticide Exposure of People Living in Agricultural Community, Northern Thailand. J Toxicol 2018; 2018:4168034. [PMID: 30631352 PMCID: PMC6304500 DOI: 10.1155/2018/4168034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/07/2018] [Indexed: 01/12/2023] Open
Abstract
Background and Aim Biomarkers of pesticide exposure are generally lacking in communities where agricultural crops are grown. The purpose of this study was to focus on evaluating biomarkers of pesticide exposure in people living in an agricultural area of San Pa Tong District in Chiang Mai Province, northern Thailand. Materials and Methods One hundred and twenty-four participants (38 nonfarm workers, 38 rice growers, 31 longan growers, and 17 vegetable growers) from San Pa Tong District gave consent to participate in the study. Pesticide exposure was assessed by determining acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) levels in blood samples using Ellman's method and measuring 6-dialkylphosphate metabolites (DAPs), 3-phenoxybenzoic acid (3-PBA), and glyphosate in urine samples using chromatographic methods. Results AChE and BChE activities in the nonfarm worker group had higher level than those in the grower groups. DAPs were detected in almost all urine samples and 3-PBA was detected in 12-45% of each group, while glyphosate was found in 11 – 30% among the three groups of growers but not in nonfarm workers. Conclusion In this study, participants living in an agricultural area of San Pa Tong District were exposed to organophosphate, synthetic pyrethroid, and glyphosate through multiple pathways.
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Huo J, Li Z, Wan D, Li D, Qi M, Barnych B, Vasylieva N, Zhang J, Hammock BD. Development of a Highly Sensitive Direct Competitive Fluorescence Enzyme Immunoassay Based on a Nanobody-Alkaline Phosphatase Fusion Protein for Detection of 3-Phenoxybenzoic Acid in Urine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11284-11290. [PMID: 30293433 PMCID: PMC6442738 DOI: 10.1021/acs.jafc.8b04521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
3-Phenoxybenzoic acid (3-PBA) is a human urinary metabolite of many pyrethroid insecticides and can be used as a biomarker to monitor human exposure to these pesticides. A rapid and sensitive direct competitive fluorescence enzyme immunoassay (dc-FEIA) for detecting 3-PBA on the basis of a nanobody (Nb)-alkaline phosphatase (AP) fusion protein was developed. The anti-3-PBA Nb-AP fusion protein was expressed and purified. The 50% inhibitory concentration (IC50) and linear range of dc-FEIA were 0.082 and 0.015-0.447 ng/mL, respectively, with a detection limit of 0.011 ng/mL. The IC50 of dc-FEIA was improved by nearly ten times compared with those of one-step and three-step direct competitive enzyme-linked immunosorbent assay (dc-ELISA). Spiked urine samples were detected by both dc-FEIA and liquid chromatography-mass spectrometry (LC-MS), and the results showed good consistency between the two analysis methods, indicating the reliability of dc-FEIA based on the Nb-AP fusion protein for detecting 3-PBA in urine.
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Affiliation(s)
- Jingqian Huo
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Zhenfeng Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Debin Wan
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Dongyang Li
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Meng Qi
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Bogdan Barnych
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Natalia Vasylieva
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
| | - Jinlin Zhang
- College of Plant Protection, Agricultural University of Hebei, Baoding 071001, P. R. China
- Corresponding author (Tel: +86-0312-7528575; Fax: +86-0312-7528575; )
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616
- Corresponding author (Tel: +86-0312-7528575; Fax: +86-0312-7528575; )
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Pali M, Bever CRS, Vasylieva N, Hammock BD, Suni II. Impedance Detection of 3-Phenoxybenzoic Acid with a Noncompetitive Two-site Phage Anti-immunocomplex Assay. ELECTROANAL 2018. [DOI: 10.1002/elan.201800457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Madhavi Pali
- Department of Chemistry & Biochemistry, Materials Technology Center; Southern Illinois University; Carbondale IL 62901
| | - Candace R. S. Bever
- Department of Entomology & Nematology; University of California; Davis CA 95616
- Western Regional Research Center; Agricultural Research Service Unided States Department of Agriculture; 800 Buchanan Street Albany CA 94710 USA
| | - Natalia Vasylieva
- Department of Entomology & Nematology; University of California; Davis CA 95616
| | - Bruce D. Hammock
- Department of Entomology & Nematology; University of California; Davis CA 95616
| | - Ian I. Suni
- Department of Chemistry & Biochemistry, Materials Technology Center; Southern Illinois University; Carbondale IL 62901
- Department of Mechanical Engineering & Energy Processes; Southern Illinois University; Carbondale IL 62901
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Gubaidullina MK, Urusov AE, Zherdev AV, Xu C, Dzantiev BB. Immunochromatographic Test Systems using Anti-Species Antibodies–Colloidal Gold Conjugate: Their Features and Benefits on the Example of Ochratoxin A Detection. ACTA ACUST UNITED AC 2018. [DOI: 10.3103/s0027131418020049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Dallegrave A, Pizzolato TM, Barreto F, Bica VC, Eljarrat E, Barceló D. Residue of insecticides in foodstuff and dietary exposure assessment of Brazilian citizens. Food Chem Toxicol 2018; 115:329-335. [DOI: 10.1016/j.fct.2018.03.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 03/07/2018] [Accepted: 03/20/2018] [Indexed: 01/18/2023]
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Chedik L, Bruyere A, Le Vee M, Stieger B, Denizot C, Parmentier Y, Potin S, Fardel O. Inhibition of Human Drug Transporter Activities by the Pyrethroid Pesticides Allethrin and Tetramethrin. PLoS One 2017; 12:e0169480. [PMID: 28099443 PMCID: PMC5242521 DOI: 10.1371/journal.pone.0169480] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/16/2016] [Indexed: 12/11/2022] Open
Abstract
Pyrethroids are widely-used chemical insecticides, to which humans are commonly exposed, and known to alter functional expression of drug metabolizing enzymes. Limited data have additionally suggested that drug transporters, that constitute key-actors of the drug detoxification system, may also be targeted by pyrethroids. The present study was therefore designed to analyze the potential regulatory effects of these pesticides towards activities of main ATP-binding cassette (ABC) and solute carrier (SLC) drug transporters, using transporter-overexpressing cells. The pyrethroids allethrin and tetramethrin were found to inhibit various ABC and SLC drug transporters, including multidrug resistance-associated protein (MRP) 2, breast cancer resistance protein (BCRP), organic anion transporter polypeptide (OATP) 1B1, organic anion transporter (OAT) 3, multidrug and toxin extrusion transporter (MATE) 1, organic cation transporter (OCT) 1 and OCT2, with IC50 values however ranging from 2.6 μM (OCT1 inhibition by allethrin) to 77.6 μM (OAT3 inhibition by tetramethrin) and thus much higher than pyrethroid concentrations (in the nM range) reached in environmentally pyrethroid-exposed humans. By contrast, allethrin and tetramethrin cis-stimulated OATP2B1 activity and failed to alter activities of OATP1B3, OAT1 and MATE2-K, whereas P-glycoprotein activity was additionally moderately inhibited. Twelve other pyrethoids used at 100 μM did not block activities of the various investigated transporters, or only moderately inhibited some of them (inhibition by less than 50%). In silico analysis of structure-activity relationships next revealed that molecular parameters, including molecular weight and lipophilicity, are associated with transporter inhibition by allethrin/tetramethrin and successfully predicted transporter inhibition by the pyrethroids imiprothrin and prallethrin. Taken together, these data fully demonstrated that two pyrethoids, i.e., allethrin and tetramethrin, can act as regulators of the activity of various ABC and SLC drug transporters, but only when used at high and non-relevant concentrations, making unlikely any contribution of these transporter activity alterations to pyrethroid toxicity in environmentally exposed humans.
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Affiliation(s)
- Lisa Chedik
- Institut de Recherches en Santé, Environnement et Travail (IRSET), UMR INSERM U1085, Faculté de Pharmacie, 2 Avenue du Pr Léon Bernard, Rennes, France
- Pôle Pharmacie, Centre Hospitalier Universitaire, 2 rue Henri Le Guilloux, Rennes, France
| | - Arnaud Bruyere
- Institut de Recherches en Santé, Environnement et Travail (IRSET), UMR INSERM U1085, Faculté de Pharmacie, 2 Avenue du Pr Léon Bernard, Rennes, France
| | - Marc Le Vee
- Institut de Recherches en Santé, Environnement et Travail (IRSET), UMR INSERM U1085, Faculté de Pharmacie, 2 Avenue du Pr Léon Bernard, Rennes, France
| | - Bruno Stieger
- Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, University of Zurich, Rämistrasse 100, Zurich, Switzerland
| | - Claire Denizot
- Centre de Pharmacocinétique, Technologie Servier, 25–27 rue Eugène Vignat, Orléans, France
| | - Yannick Parmentier
- Centre de Pharmacocinétique, Technologie Servier, 25–27 rue Eugène Vignat, Orléans, France
| | - Sophie Potin
- Institut de Recherches en Santé, Environnement et Travail (IRSET), UMR INSERM U1085, Faculté de Pharmacie, 2 Avenue du Pr Léon Bernard, Rennes, France
- Pôle Pharmacie, Centre Hospitalier Universitaire, 2 rue Henri Le Guilloux, Rennes, France
| | - Olivier Fardel
- Institut de Recherches en Santé, Environnement et Travail (IRSET), UMR INSERM U1085, Faculté de Pharmacie, 2 Avenue du Pr Léon Bernard, Rennes, France
- Pôle Biologie, Centre Hospitalier Universitaire, 2 rue Henri Le Guilloux, Rennes, France
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Han J, Zhou L, Luo M, Liang Y, Zhao W, Wang P, Zhou Z, Liu D. Nonoccupational Exposure to Pyrethroids and Risk of Coronary Heart Disease in the Chinese Population. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:664-670. [PMID: 27966923 DOI: 10.1021/acs.est.6b05639] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pyrethroids and the metabolites have been frequently observed in the environment. Animal data suggests that pyrethroids can induce adverse effect on the cardiovascular system but there are no human studies examining pyrethoids exposure as a risk for coronary heart disease (CHD). We analyzed three nonspecific pyrethroids metabolites in urine and studied the association with CHD risk. A total of 72 CHD patients and 136 healthy subjects were recruited in Shanxi province in China from 2013 to 2014 by matching age and gender. The median concentrations of urinary cis-CDDA (cis-3-(2,2-dichlorovinyl)-2,2-dimethyl cyclopropane carboxylic acid), trans-CDDA (trans-3-(2,2-dichlorovinyl)-2,2-dimethyl cyclopropane carboxylic acid) and 3-PBA (3-phenoxybenzoic acid) among healthy subjects were 1.03, 0.42, 0.74 μg/L respectively, while the median concentrations of the three metabolites among CHD patients were 1.93, 1.07, 1.09 μg/L respectively, significantly higher than healthy subjects. Upper tertile of urinary pyrethroid metabolites were associated with an increased risk of CHD compared with the lowest tertile (cis-CDDA: ORT3vsT1 = 6.86, 95% CI: 2.76-17.06, p-trend = 0.000; trans-CDDA: ORT3vsT1 = 6.94; 95% CI: 2.80-17.19; p-trend =0.000; 3-PBA: ORT3vsT1 = 3.62; 95% CI: 1.48-8.88; p-trend = 0.009; total pyrethroid metabolites: ORT3vsT1 = 4.55; 95% CI: 1.80-11.54; p-trend = 0.002). This study provides information on pyrethroids exposure in China and reveals a possible positive association between pyrethroids exposure and the risk of coronary heart disease.
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Affiliation(s)
- Jiajun Han
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Liqin Zhou
- Xinzhou City People's Hospital, Xinzhou, Shanxi 034000, People's Republic of China
| | - Mai Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Yiran Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Wenting Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Peng Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Zhiqiang Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
| | - Donghui Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Applied Chemistry, China Agricultural University , Beijing, 100193, People's Republic of China
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22
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Ahn KC, Ranganathan A, Bever CS, Hwang SH, Holland EB, Morisseau K, Pessah IN, Hammock BD, Gee SJ. Detection of the Antimicrobial Triclosan in Environmental Samples by Immunoassay. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:3754-61. [PMID: 26937944 PMCID: PMC4821808 DOI: 10.1021/acs.est.5b05357] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A sensitive, competitive enzyme-linked immunosorbent assay (ELISA) for the detection of the antimicrobial triclosan (TCS; 2,4,4'-trichloro-2'-hydroxydiphenyl ether) was developed. Novel immunizing haptens were synthesized by derivatizing at the 4-Cl position of the TCS molecule. Compounds derived from substitutions at 4'-Cl and that replaced the 2'-OH with a Cl atom were designed as unique coating antigen haptens. Polyclonal rabbit antisera were screened against the coating antigen library to identify combinations of immunoreagents resulting in the most sensitive assays. The most sensitive assay identified was one utilizing antiserum no. 1155 and a heterologous competitive hapten, where the 2'-OH group was substituted with a Cl atom. An IC50 value and the detection range for TCS in assay buffer were 1.19 and 0.21-6.71 μg/L, respectively. The assay was selective for TCS, providing low cross-reactivity (<5%) to the major metabolites of TCS and to brominated diphenyl ether-47. A second assay utilizing a competitive hapten containing Br instead of Cl substitutions was broadly selective for both brominated and chlorinated diphenylethers. Using the most sensitive assay combination, we measured TCS concentrations in water samples following dilution. Biosolid samples were analyzed following the dilution of a simple solvent extract. The immunoassay results were similar to those determined by LC-MS/MS. This immunoassay can be used as a rapid and convenient tool to screen for human and environmental exposure.
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Affiliation(s)
- Ki Chang Ahn
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
| | - Anupama Ranganathan
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
| | | | - Sung Hee Hwang
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
| | - Erika B. Holland
- Department of Molecular Biosciences, University of California Davis, Davis, CA 95616
| | - Kevin Morisseau
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
| | - Isaac N. Pessah
- Department of Molecular Biosciences, University of California Davis, Davis, CA 95616
| | - Bruce D. Hammock
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
| | - Shirley J. Gee
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California Davis, Davis, CA 95616
- Corresponding author phone: 530-752-8465, fax: 530-752-1537,
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23
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Influence of pesticide physicochemical properties on the association between plasma and hair concentration. Anal Bioanal Chem 2016; 408:3601-12. [DOI: 10.1007/s00216-016-9442-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/19/2016] [Accepted: 02/22/2016] [Indexed: 01/28/2023]
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24
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Time courses and variability of pyrethroid biomarkers of exposure in a group of agricultural workers in Quebec, Canada. Int Arch Occup Environ Health 2016; 89:767-83. [DOI: 10.1007/s00420-016-1114-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 01/17/2016] [Indexed: 10/22/2022]
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Chang J, Wang Y, Wang H, Li J, Xu P. Bioaccumulation and enantioselectivity of type I and type II pyrethroid pesticides in earthworm. CHEMOSPHERE 2016; 144:1351-1357. [PMID: 26490429 DOI: 10.1016/j.chemosphere.2015.10.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 09/15/2015] [Accepted: 10/02/2015] [Indexed: 06/05/2023]
Abstract
In this study, the bioavailability and enantioselectivity differences between bifenthrin (BF, typeⅠpyrethroid) and lambad-cyhalothrin (LCT, type Ⅱ pyrethroid) in earthworm (Eisenia fetida) were investigated. The bio-soil accumulation factors (BSAFs) of BF was about 4 times greater than that of LCT. LCT was degraded faster than BF in soil while eliminated lower in earthworm samples. Compound sorption plays an important role on bioavailability in earthworm, and the soil-adsorption coefficient (K(oc)) of BF and LCT were 22 442 and 42 578, respectively. Metabolic capacity of earthworm to LCT was further studied as no significant difference in the accumulation of LCT between the high and low dose experiment was found. 3-phenoxybenzoic acid (PBCOOH), a metabolite of LCT produced by earthworm was detected in soil. The concentration of PBCOOH at high dose exposure was about 4.7 times greater than that of in low dose level at the fifth day. The bioaccumulation of BF and LCT were both enantioselective in earthworm. The enantiomer factors of BF and LCT in earthworm were approximately 0.12 and 0.65, respectively. The more toxic enantiomers ((+)-BF and (-)-LCT) had a preferential degradation in earthworm and leaded to less toxicity on earthworm for racemate exposure. In combination with other studies, a liner relationship between Log BSAF(S) and Log K(ow) was observed, and the Log BSAF(S) decreased with the increase of Log K(ow).
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Affiliation(s)
- Jing Chang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Yinghuan Wang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Huili Wang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Jianzhong Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Peng Xu
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China.
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Vasylieva N, Ahn KC, Barnych B, Gee SJ, Hammock BD. Development of an Immunoassay for the Detection of the Phenylpyrazole Insecticide Fipronil. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:10038-10047. [PMID: 26196357 PMCID: PMC4605820 DOI: 10.1021/acs.est.5b01005] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Phenylpyrazole insecticides such as fipronil have been used as replacements for organophosphates. The wide application of fipronil raises concern about environmental contamination and risk for fish, birds, and other nontargeted beings as well as human health. A sensitive, competitive indirect heterologous enzyme-linked immunosorbent assay (ELISA) was developed. Antibodies with different specificities to fipronil and its metabolites were produced. Two ELISAs having IC50 values of 0.58 ± 0.06 and 2.6 ± 0.4 ng/mL were developed. Design of different haptens and coating antigens resulted in two assays with distinct cross-reactivity patterns for structurally related compounds: 96, 38, and 101% versus 39, 1.4, and 25% for fipronil-sulfide, fipronil-detrifluoromethylsulfonyl, and fipronil-desulfinyl, respectively. Performance of the immunoassays was demonstrated by a recovery study from spiked water and human serum and urine matrices, giving recovery values in the range of 85-111% for different concentrations. The assays demonstrated good correlation in fipronil recovery with conventional LC-MS/MS analysis. The generic assay 2265 has the sensitivity to measure fipronil and its analogs in serum at levels relevant for exposure monitoring. The assays were used to analyze human urine samples obtained from exposure studies and serum samples from rats treated with a fipronil-containing diet.
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Affiliation(s)
- Natalia Vasylieva
- Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
| | - Ki Chang Ahn
- Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
| | - Bogdan Barnych
- Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
| | - Shirley J. Gee
- Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
| | - Bruce D. Hammock
- Department of Entomology and Nematology, and UCD Comprehensive Cancer Center, University of California Davis, Davis, California 95616, United States
- Corresponding Author, Tel. : 530-752-8465. Fax : 530-752-7519.
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Song H, Zhou Z, Liu Y, Deng S, Xu H. Kinetics and Mechanism of Fenpropathrin Biodegradation by a Newly Isolated Pseudomonas aeruginosa sp. Strain JQ-41. Curr Microbiol 2015; 71:326-32. [PMID: 26068594 DOI: 10.1007/s00284-015-0852-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
Abstract
A soil bacterium designated strain JQ-41, capable of growth on fenpropathrin as the sole carbon source and energy source, was isolated from a long-term pyrethroid insecticide-treated orchard. Based on the morphology, physio-biochemical characteristics, and 16S rDNA gene analysis, as well as the G+C content of the genomic DNA, the strain JQ-41 was identified as Pseudomonas aeruginosa. Up to 92.3% of 50 mg l(-1) fenpropathrin was degraded by P. aeruginosa strain at 30°C and pH 7 within 7 days. The kinetic parameters q max, K s, and K i were established to be 1.14 day(-1), 38.41 mg l(-1), and 137.67 mg l(-1), respectively, and the critical inhibitor concentration was determined to be 72.72 mg l(-1). Cell surface hydrophobicity of P. aeruginosa strain was enhanced during growth on fenpropathrin. Three metabolites from fenpropathrin degradation were identified by gas chromatography mass spectrometry, and then a possible degradation pathway was proposed. In addition, this isolate was also able to degrade a wide range of synthetic pyrethroid insecticides including cypermethrin, deltamethrin, bifenthrin, and cyhalothrin with the degradation process following the first-order kinetic model. Taken together, our results provide insights into the kinetics and mechanism of fenpropathrin degradation by P. aeruginosa strain and also highlight its promising potential in bioremediation of pyrethroid-contaminated environment.
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Affiliation(s)
- Haihai Song
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
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28
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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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