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Magnuson JT, Sy ND, Tanabe P, Ji C, Gan J, Schlenk D. Dopaminergic and anti-estrogenic responses in juvenile steelhead (Oncorhynchus mykiss) exposed to bifenthrin. Comp Biochem Physiol C Toxicol Pharmacol 2024; 285:109995. [PMID: 39111515 DOI: 10.1016/j.cbpc.2024.109995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 07/18/2024] [Accepted: 08/01/2024] [Indexed: 08/11/2024]
Abstract
The frequency of detection and concentrations of bifenthrin, a pyrethroid insecticide, in the waterways inhabited by the endangered species, steelhead trout (Oncorhynchus mykiss), has become a significant concern for regulatory agencies. Endocrine disruption has been observed with estrogenic and anti-estrogenic responses in fish species at different life stages. Since several studies have indicated alterations in dopaminergic signaling associated with endocrine responses, juvenile steelhead were exposed to environmentally relevant concentrations of 60 or 120 ng/L bifenthrin for two weeks. Fish brains were assessed for dopamine levels and the expression of genes involved in dopaminergic and estrogenic processes, such as catechol-o-methyltransferase (comt) and monoamine oxidase (mao). Vitellogenin (vtg) and estrogenic receptors (ERα1, ERβ1, and ERβ2) were also evaluated in livers of the animals. Dopamine concentrations were significantly higher in fish brains following bifenthrin exposure. Consistent with a reduction in dopamine clearance, there was a significant decrease in the mRNA expression of comt with increased bifenthrin concentration. Hepatic expression of ERα1 and ERβ2 mRNA was significantly decreased with increased bifenthrin concentration. These data support the possible mechanism of bifenthrin altering the dopaminergic pathway at low ng/L concentrations, in juvenile steelhead, which could interfere with endocrine feedback loops. These findings support the need for and importance of identifying species and life stage differences in pesticide modes of action to reduce uncertainties in risk assessments.
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Affiliation(s)
- Jason T Magnuson
- U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, USA; Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA.
| | - Nathan D Sy
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA
| | - Philip Tanabe
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA; National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Charleston, SC, USA
| | - Chenyang Ji
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside, Riverside, CA, USA
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2
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Bibi A, Anjum F, Hussain SR, Ahad A, Deen AU, Suleman M, Jan B. Surveillance of pesticide residues in tomato and eggplant and assessment of acute and chronic health risks to the consumers in Pakistan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:6385-6397. [PMID: 38148460 DOI: 10.1007/s11356-023-31581-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/12/2023] [Indexed: 12/28/2023]
Abstract
Pesticide application has become a mandatory requirement of the modern agricultural system, resulting in the objectionable levels of pesticide residues in the treated food commodities and posing health threats to the consumers. This study aimed at optimization and validation of an analytical method which can be reliably applied for routine monitoring of the selected eighteen widely reported pesticides in tomato and eggplant. The principle of quick, easy, cheap, effective, rugged, and safe, i.e., QuEChERS, involving the acetate-buffered extraction followed by cleanup using the primary secondary amines (PSA) was employed. The analytical method was validated at three spiking levels (0.05, 0.01, 0.005 mg/kg) using gas chromatograph-micro electron capture detector (GC-µECD). Gas chromatograph-mass spectrometric detector (GC-MSD) was also used for confirmation and quantification using selective ion monitoring (SIM) mode. The method was applied on fresh samples of tomato (n = 33) and eggplant (n = 27) collected from local markets of Khyber Pakhtunkhwa, Pakistan, in the crop season 2020-2021. Twenty-five (76%) tomato samples and fifteen (56%) eggplant samples were found positive for one or more pesticides. Though the chronic and acute health risk assessments indicate that both of these vegetables are unlikely to pose any unacceptable health threat to their consumers, yet the risks from regular intake of pesticides-contaminated food commodities should be regularly addressed for possible protection of the public health and assurance of safe and consistent agro-trade, alike.
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Affiliation(s)
- Aasma Bibi
- Pesticides Chemistry Section, Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Farida Anjum
- Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan.
| | - Syed Roohul Hussain
- Pesticides Chemistry Section, Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Abdul Ahad
- Pesticides Chemistry Section, Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Azeem Ud Deen
- Pesticides Chemistry Section, Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Suleman
- Department of Agricultural Chemistry and Biochemistry, University of Agriculture, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
| | - Bilal Jan
- Pesticides Chemistry Section, Directorate of Soil and Plants Nutrition, Agricultural Research Institute, Tarnab, Peshawar, 25000, Khyber Pakhtunkhwa, Pakistan
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3
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Wolfe J, Marsit C. Pyrethroid pesticide exposure and placental effects. Mol Cell Endocrinol 2023; 578:112070. [PMID: 37722502 PMCID: PMC10591723 DOI: 10.1016/j.mce.2023.112070] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/20/2023]
Abstract
Human exposures to pyrethroid pesticides have increased in recent years following the bans and sanctions placed on other families of pesticides. Although pyrethroids are currently widely used across the United States and throughout the world, and their overt neurological toxicity classified, the extent of their toxicity through low dose and chronic exposures on humans is less well characterized, particularly when it comes to prenatal exposures, their impacts on neurodevelopment, and any role for the placenta in those effects. In this review, we assess the state of research on pyrethroid pesticide exposure and placental effects. These studies presented hormone disrupting, genotoxic, neurodevelopmental and neurobehavioral effects, among others, following prenatal pyrethroid exposures, and highlights a need for future research to assess gaps relating to effects in the human placenta and mechanisms of toxicity as well as shortcomings in the reproducibility and standardization of the methodologies presented.
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Affiliation(s)
- Joshua Wolfe
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Carmen Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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4
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Talat F, Aslam H, Ahad K, Rafique N. Surveillance and dietary risk assessment of endocrine-disrupting pesticides in eggplant/brinjal and cauliflower in Pakistan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33650-33659. [PMID: 36481860 DOI: 10.1007/s11356-022-24624-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Several pesticides (used in vegetable production) have recently been identified as potential endocrine disruptors. The current study aimed to determine the consumer exposure risk associated with eating contaminated vegetables. The European Union-citrate buffered QuEChERS extraction protocol, validated in accordance with the European Union guidelines, was used to monitor selected endocrine-disrupting pesticides in eggplant/brinjal (Solanum melongena L.) and cauliflower (Brassica oleracea) marketed in Rawalpindi/Islamabad, Pakistan. A total of 80 and 69 percent of eggplant/brinjal (n = 25) and cauliflower (n = 26) samples were found contaminated, respectively. Sixty-five percent of cauliflower samples were found non-contaminated with both European Union (EU) and Codex Alimentarius Commission (CAC) maximum residue limits (MRL), while 20 % of brinjal samples were found to be non-compliant with EU-MRL. Both vegetables contained high levels of the androgen antagonist chlorpyrifos and the thyroid hormone inhibitor cyhalothrin-lambda. The estimated acute health risk associated with dietary exposure to chlorpyrifos and cyhalothrin-lambda in cauliflower for both males and females was found to be greater than 200 % of the FAO/WHO Joint Meeting on Pesticide Residues' (JMPR) established acute reference dose. The estimated chronic health risk for all studied endocrine-disrupting pesticides (0-5.27 %) indicates zero to very low health risk for studied population groups.
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Affiliation(s)
- Farwa Talat
- Ecotoxicology Research Program, Institute of Plant and Environmental Protection (IPEP), PARC_National Agriculture Research Centre (NARC), Park Road, Islamabad, Pakistan
| | - Hina Aslam
- Ecotoxicology Research Program, Institute of Plant and Environmental Protection (IPEP), PARC_National Agriculture Research Centre (NARC), Park Road, Islamabad, Pakistan
| | - Karam Ahad
- Ecotoxicology Research Program, Institute of Plant and Environmental Protection (IPEP), PARC_National Agriculture Research Centre (NARC), Park Road, Islamabad, Pakistan
| | - Nazia Rafique
- Ecotoxicology Research Program, Institute of Plant and Environmental Protection (IPEP), PARC_National Agriculture Research Centre (NARC), Park Road, Islamabad, Pakistan.
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5
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Ji C, Song Z, Tian Z, Feng Z, Fan L, Shou C, Zhao M. Enantioselectivity in the toxicological effects of chiral pesticides: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159656. [PMID: 36280076 DOI: 10.1016/j.scitotenv.2022.159656] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
As a special category of pesticides, chiral pesticides have increased the difficulty in investigating pesticide toxicity. Based on their usage, chiral pesticides can be divided into insecticides, herbicides, and fungicides. Over the past decades, great efforts have been made on elucidating their toxicological effects. However, no literature has reviewed the enantioselective toxicity of chiral pesticides since 2014. In recent years, more chiral pesticides have been registered for application. As such, huge research progresses have been achieved in enantioselective toxicity of chiral pesticides. Generally, more researches have remedied the knowledge gap in toxicological effects of old and new chiral pesticides. And the toxicological endpoints being evaluated have become more specific rather than centering on basic toxicity and target organisms. Besides, the underlying mechanisms accounting for the enantioselectivity in toxicological effects of chiral pesticides have been discussed as well. All in all, this review provides the critical knowledge for risk assessments, and help to drive the green-technology of single- or enriched-enantiomer pesticides and formulation of relevant laws and regulations.
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Affiliation(s)
- Chenyang Ji
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zhongdi Song
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zhongling Tian
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zixuan Feng
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Lele Fan
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Chenfei Shou
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, China
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
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6
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Yan Y, Guo F, Liu K, Ding R, Wang Y. The effect of endocrine-disrupting chemicals on placental development. Front Endocrinol (Lausanne) 2023; 14:1059854. [PMID: 36896182 PMCID: PMC9989293 DOI: 10.3389/fendo.2023.1059854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 02/03/2023] [Indexed: 02/25/2023] Open
Abstract
Endocrine-disrupting chemicals (EDCs) or endocrine disruptors are substances that are either naturally occurring or artificial and are released into the natural environment. Humans are exposed to EDCs through ingestion, inhalation, and skin contact. Many everyday household items, such as plastic bottles and containers, the liners of metal food cans, detergents, flame retardants, food, gadgets, cosmetics, and pesticides, contain endocrine disruptors. Each hormone has a unique chemical makeup and structural attributes. The way that endocrine hormones connect to receptors is described as a "lock and key" mechanism, with each hormone serving as the key (lock). This mechanism is enabled by the complementary shape of receptors to their hormone, which allows the hormone to activate the receptors. EDCs are described as exogenous chemicals or compounds that have a negative impact on organisms' health by interacting with the functioning of the endocrine system. EDCs are associated with cancer, cardiovascular risk, behavioural disorders, autoimmune abnormalities, and reproductive disorders. EDCs exposure in humans is highly harmful during critical life stages. Nonetheless, the effect of EDCs on the placenta is often underestimated. The placenta is especially sensitive to EDCs due to its abundance of hormone receptors. In this review, we evaluated the most recent data on the effects of EDCs on placental development and function, including heavy metals, plasticizers, pesticides, flame retardants, UV filters and preservatives. The EDCs under evaluation have evidence from human biomonitoring and are found in nature. Additionally, this study indicates important knowledge gaps that will direct future research on the topic.
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Affiliation(s)
- Yan Yan
- Department of Endocrinology, The Second Hospital of Jilin University, Changchun, China
| | - Fengjun Guo
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Kexin Liu
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Rixin Ding
- Department of Cardiovascular Medicine, Changchun Central Hospital, Changchun, China
| | - Yichao Wang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
- *Correspondence: Yichao Wang,
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7
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Gan H, Zhu B, Zhou F, Ding Z, Liu J, Ye X. Perinatal exposure to low doses of cypermethrin induce the puberty-related hormones and decrease the time to puberty in the female offspring. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:2665-2675. [PMID: 35931855 DOI: 10.1007/s11356-022-22328-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Pyrethroid insecticides are ubiquitously detected in environmental media, food, and urine samples. Our previous epidemiological study reported a correlation between increased pyrethroid exposure and delayed pubertal development in Chinese girls. In this study, we further investigated the effects of perinatal exposure to low doses of cypermethrin (CP) on pubertal onset and hypothalamic-pituitary-ovarian axis in the female mice offspring. The treatment of CP with 60 μg/kg/day from gestation day 6 (GD6) to postnatal day 21 (PND21) significantly decreased the time to puberty in the female offspring. Exposure of CP increased the serum levels of gonadotropin-releasing hormone (GnRH) and the expression of GnRH genes in a dose-dependent manner in the female offspring. CP also induced the serum levels of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), as well as the expression of gonadotropin subunit genes [LHβ, FSHβ, and chorionic gonadotropin α (Cgα)]. Furthermore, CP induced serum estradiol (E2) levels and the expression of steroidogenesis-related genes [steroidogenic acute regulatory (StAR) and Cytochrome p 450, family 11, subfamily A, polypeptide 1 (CYP11A1)] in the ovary. In accordance with the in vivo tests, administration of CP (6.7, 20, and 60 μg/L) stimulated a dose-dependent increase in the synthesis and secretion of the puberty-related hormones in the explants of hypothalamus, pituitary, and ovary. The interference with calcium channels in the ovary may be responsible for CP-induced pubertal onset. Our study provided evidence that perinatal exposure to low doses of CP induced puberty-related hormones and decreased the time to puberty in the female offspring.
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Affiliation(s)
- Hongya Gan
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Bingqi Zhu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Fangmei Zhou
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhishan Ding
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoqing Ye
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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8
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Macar O, Kalefetoğlu Macar T, Çavuşoğlu K, Yalçın E. Risk assessment of oxidative stress and multiple toxicity induced by Etoxazole. Sci Rep 2022; 12:20453. [PMID: 36443484 PMCID: PMC9705279 DOI: 10.1038/s41598-022-24966-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Etoxazole is among the systemic pesticides with acaricidal and insecticidal characteristics. This paper reports the first evaluation of the toxic effects of Etoxazole on Allium cepa L. Etoxazole solutions were applied to three groups formed from A. cepa bulbs at 0.125 mL/L, 0.25 mL/L and 0.5 mL/L doses, respectively. The control group was treated with tap water throughout the experimental period. The toxic effects of Etoxazole became more apparent as the dose of Etoxazole was increased. The growth-limiting effect was most pronounced in the highest dose group with approximately 29%, 70% and 58.5% reductions in germination percentage, root elongation and weight gain, respectively. The genotoxic effect of Etoxazole was most severe in the 0.5 mL/L dose group. In this group, the mitotic index decreased by 30% compared to the control group, while the micronucleus frequency increased to 45.3 ± 3.74. The most observed aberrations were fragment, vagrant chromosome, sticky chromosome, unequal distribution of chromatin, bridge, reverse polarization and nucleus with vacuoles. The malondialdehyde level showed a gradual increase with increasing Etoxazole doses and reached 2.7 times that of the control group in the 0.5 mL/L Etoxazole applied group. Catalase and Superoxide dismutase activities increased in the groups exposed to 0.125 mL/L and 0.25 mL/L Etoxazole with dose dependence and decreased abruptly in the group treated with 0.5 mL/L Etoxazole. Etoxazole triggered meristematic cell damages, such as epidermis cell damage, thickening of cortex cell walls, flattened cell nucleus and indistinct transmission tissue. Considering the versatile toxicity induced by Etoxazole, we announce that this chemical has the potential to cause serious damage to non-target organisms. It should be noted that the higher the dose of exposure, the more severe the level of damage. This study will be an important reminder to limit the indiscriminate use of this highly risky agrochemical.
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Affiliation(s)
- Oksal Macar
- grid.411709.a0000 0004 0399 3319Department of Food Technology, Şebinkarahisar School of Applied Sciences, Giresun University, Giresun, Turkey
| | - Tuğçe Kalefetoğlu Macar
- grid.411709.a0000 0004 0399 3319Department of Food Technology, Şebinkarahisar School of Applied Sciences, Giresun University, Giresun, Turkey
| | - Kültiğin Çavuşoğlu
- grid.411709.a0000 0004 0399 3319Department of Biology, Faculty of Science and Art, Giresun University, Giresun, Turkey
| | - Emine Yalçın
- grid.411709.a0000 0004 0399 3319Department of Biology, Faculty of Science and Art, Giresun University, Giresun, Turkey
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9
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Zhou X, Yang Y, Ming R, Chen H, Hu D, Lu P. Insight into the differences in the toxicity mechanisms of dinotefuran enantiomers in zebrafish by UPLC-Q/TOF-MS. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:70833-70841. [PMID: 35589890 DOI: 10.1007/s11356-022-20424-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Dinotefuran is a chiral insecticide widely used to control Nilaparvata lugens in agriculture. However, little is known about the toxic effects of dinotefuran enantiomers on aquatic organisms. In this study, zebrafish were exposed to 1.00 and 10.00 mg/L dinotefuran enantiomers for 96 h, after which multivariate pattern recognition, metabolite identification, and pathway analysis were performed. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were then conducted to reveal the metabolic perturbations caused by dinotefuran enantiomers. Metabolic pathway analysis revealed the perturbation of five main pathways, including phenylalanine, tyrosine and tryptophan biosynthesis; phenylalanine metabolism; retinol metabolism; arginine and proline metabolism; and glycerophospholipid metabolism. These disturbed metabolic pathways were strongly correlated with energy, amino acid metabolism, and lipid metabolism. Pathway analysis also indicated that the metabolic pathway changes induced by the same level of R and S-dinotefuran were enantioselective. Our research may provide better insight into the risk of chiral dinotefuran in aquatic organisms in the environment.
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Affiliation(s)
- Xia Zhou
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Ya Yang
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Renyue Ming
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Hong Chen
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Deyu Hu
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Ping Lu
- Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
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10
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He Z, Li C, Xia W, Wang Z, Li R, Zhang Y, Wang M. Comprehensive Enantioselectivity Evaluation of Insecticidal Activity and Mammalian Toxicity of Fenobucarb. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5330-5338. [PMID: 35451821 DOI: 10.1021/acs.jafc.2c00093] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To comprehensively evaluate the efficiency and risk of the chiral pesticide fenobucarb, the bioactivity, toxicity, and environmental behavior of fenobucarb (FNC) enantiomers were investigated. The results showed that R-FNC possesses 1.8-2.7 times more bioactivity than S-FNC but 1.3-3.0 times lower toxicity than S-FNC against four nontarget organisms: Chlorella pyrenoidosa, HepG2, and Danio rerio and its embryos. The corresponding enzyme inhibitory activity showed consistent results; the acetylcholinesterase inhibitory activity of target organisms was ordered as R-FNC > rac-FNC > S-FNC, while the reduction in catalase activity after exposure to R-FNC was 2.5 times that after exposure to S-FNC in zebrafish. The enantioselective bioactivity mechanism of FNC enantiomers was further explored in silico. No significant enantioselective degradation was found in soils or rat liver microsomes. In sum, R-FNC possesses higher insecticidal activity and lower toxicity. The development of R-FNC as a commercial agrochemical is beneficial for reducing pesticide inputs.
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Affiliation(s)
- Zongzhe He
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Chenglong Li
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Weitong Xia
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Zhen Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Rui Li
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Yanqing Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing 210095, China
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11
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Radwan P, Wielgomas B, Radwan M, Krasiński R, Kilanowicz-Sapota A, Banaszczyk R, Jurewicz J. Synthetic Pyrethroids Exposure and Embryological Outcomes: A Cohort Study in Women from Fertility Clinic. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095117. [PMID: 35564520 PMCID: PMC9100335 DOI: 10.3390/ijerph19095117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 11/17/2022]
Abstract
Pyrethroids exposure has been associated with adverse reproductive outcome. However, there is no study that explores the effect of environmental exposure and embryological outcomes. This question was addressed in a prospective cohort of couples undergoing fertility treatment. The study aims to assess the association between urinary metabolites of synthetic pyrethroids and embryological outcomes (MII oocyte count, top quality embryo, fertilization and implantation rate). We included 450 women aged 25−45 undergoing assisted reproductive technology (ART) cycle at Infertility Clinic in Poland. Urine samples were collected at the time of fertility procedure(s) to assess four urinary synthetic pyrethroids concentrations (3-phenoxybenzoic acid (3PBA), cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (cis-DCCA), trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (trans-DCCA), cis-2,2-dibromovinyl-2,2-dimethylocyclopropane-1-carboxylic acid (DBCA)) using validated gas chromatography ion-tap mass spectrometry and calculated for each cycle-specific metabolite. To evaluate the effect of environmental exposure to synthetic pyrethroids and embryological outcomes (methaphase II (MII) oocyte yield, top quality embryo, fertilization rate, implantation rate), multivariable generalized linear mixed analyses with random intercepts were prepared. Urinary 3-PBA concentrations decrease MII oocyte count (p = 0.007) in the fourth quartile (>75 percentile) compared to women in the first quartile (≤25 percentile). Additionally, when 3-PBA was treated as continuous variable, the negative association between exposure to pyrethroids and MII oocyte count was also observed (p = 0.012). Exposure to other pyrethroid metabolities (CDCCA, TDCCA, DBCA) was not related to any of the examined embryological outcomes. Exposure to synthetic pyrethroids may be associated with poorer embryological outcome among couples seeking fertility treatments. As this is the first study on this topic, the results need to be confirmed in further studies.
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Affiliation(s)
- Paweł Radwan
- Gameta Health Centre, 7 Cybernetyki St., 02-677 Warsaw, Poland;
- Gameta, Kielce-Regional Science-Technology Centre, 45 Podzamcze St., Chęciny, 26-060 Kielce, Poland
| | - Bartosz Wielgomas
- Department of Toxicology, Medical University of Gdańsk, 107 Hallera St., 80-416 Gdansk, Poland;
| | - Michał Radwan
- Department of Gynecology and Reproduction, Gameta Hospital, 34/36 Rudzka St., 95-030 Rzgow, Poland; (M.R.); (R.K.); (R.B.)
- Faculty of Health Sciences, Mazovian State University in Plock, 2 Dabrowskiego Sq., 09-402 Plock, Poland
| | - Rafał Krasiński
- Department of Gynecology and Reproduction, Gameta Hospital, 34/36 Rudzka St., 95-030 Rzgow, Poland; (M.R.); (R.K.); (R.B.)
| | - Anna Kilanowicz-Sapota
- Department of Toxicology, Medical University of Lodz, Muszyńskiego 1, 90-151 Lodz, Poland;
| | - Renata Banaszczyk
- Department of Gynecology and Reproduction, Gameta Hospital, 34/36 Rudzka St., 95-030 Rzgow, Poland; (M.R.); (R.K.); (R.B.)
| | - Joanna Jurewicz
- Department of Chemical Safety, Nofer Institute of Occupational Medicine, 8 Teresy St., 91-348 Lodz, Poland
- Correspondence:
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Hu T, Ma Y, Qiao K, Jiang Y, Li S, Gui W, Zhu G. Estrogen receptor: A potential linker of estrogenic and dopaminergic pathways in zebrafish larvae following deltamethrin exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149938. [PMID: 34525687 DOI: 10.1016/j.scitotenv.2021.149938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
Deltamethrin (DM), a type II pyrethroid insecticide, is widely used to control agricultural pests. However, its excessive use exerts a detrimental effect on the ecological environment and human health, indicating the need to study its potential risks in detail. In the present study, zebrafish embryos were exposed to varying concentrations of DM (0.1, 1, 10, and 25 μg/L) for 96 h to assess the alterations in the transcript levels of proteins of the estrogenic and dopaminergic pathways. In addition, its effect on zebrafish locomotor activity was studied. The mRNA expression of cyp19a1b, erα, erβ2, fshr, gnrh2, gnrhr3, vtg3, dat, and dr1 significantly changed after exposing the embryos to DM. Deltamethrin at 10 and 25 μg/L significantly reduced the average swimming speed of zebrafish larvae. In addition, embryos injected with zebrafish estrogen receptor α (erα) and β (erβ) morpholinos and co-exposed to 25 μg/L DM for 96 h showed reduced expression of vtg3 mRNA compared to embryos exposed to 25 μg/L DM only. The locomotor activity of erα and erβ knockdown zebrafish following DM exposure was increased significantly when compared with that of larvae exposed to 25 μg/L DM only. Our results demonstrated that DM altered the locomotor activity of zebrafish larvae and the transcript levels of the components of estrogenic and dopaminergic pathways; erα and erβ knockdown weakened these effects.
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Affiliation(s)
- Tiantian Hu
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China
| | - Yongfang Ma
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China
| | - Kun Qiao
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China; Institute of Nuclear-Agricultural Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yao Jiang
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China
| | - Shuying Li
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Biology of Crop Pathogens and Insect Pests of Zhejiang Province, Zhejiang, Hangzhou 310058, PR China
| | - Wenjun Gui
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China; Key Laboratory of Biology of Crop Pathogens and Insect Pests of Zhejiang Province, Zhejiang, Hangzhou 310058, PR China.
| | - Guonian Zhu
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou 310058, PR China
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Shen Y, Yao X, Jin S, Yang F. Enantiomer/stereoisomer-specific residues of metalaxyl, napropamide, triticonazole, and metconazole in agricultural soils across China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:773. [PMID: 34741224 DOI: 10.1007/s10661-021-09562-5] [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] [Received: 07/12/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
In this study, the residual status of four chiral pesticides including metalaxyl, napropamide, triticonazole, metconazole, and their enantiomers/stereoisomers were investigated in agricultural soils across China. The levels in the soils were detected as non-detected (n.d.)-16.67 ng/g for metalaxyl with a median of 0.14 ng/g; 0.004-32.99 ng/g for napropamide with a median of 0.29 ng/g; n.d.-207.39 ng/g for triticonazole with a median of 1.29 ng/g; and n.d.-71.83 ng/g for metconazole with a median of 1.03 ng/g, respectively. Enantiomer/stereoisomer-specific residues were observed for metalaxyl and triticonazole. R-Metalaxyl and R-triticonazole were identified as the major enantiomers in the soils for the two pesticides. There was no obvious enantioselective residue for napropamide in most of the soils. As for metconazole, metconazole-1 and metconazole-4 were identified as the major stereoisomers in the soils. These results suggest that enantiomer/stereoisomer-specific risk should be considered when assessing the ecological safety of these pesticides in soils.
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Affiliation(s)
- Yi Shen
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China
| | - Xiaoshan Yao
- Key Laboratory of Analytical Chemistry of the State Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Shiwei Jin
- Key Laboratory of Analytical Chemistry of the State Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China
| | - Fangxing Yang
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, No. 866, Yuhangtang Road, Hangzhou, 310058, China.
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Wang Z, Pang J, Liao C, Zhang Q, Sun D. Determination of etoxazole in different parts of citrus fruit and its potential dietary exposure risk assessment. CHEMOSPHERE 2021; 268:128832. [PMID: 33168279 DOI: 10.1016/j.chemosphere.2020.128832] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/17/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
In this study, the profile of etoxazole in whole citrus, peel and pulp samples collected from Chongqing, Guangdong and Anhui provinces was monitored and their dietary risk to human had also been assessed. The final residual levels and distributions of etoxazole in citrus samples were detected by using an ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). The results showed that final concentrations of etoxazole in whole citrus, peel, and pulp were ranged at 0.012-0.174, 0.010-0.637, and 0.010-0.011 mg kg-1, respectively. The assessment of dietary risk suggested that chronic dietary risk of etoxazole in whole fruit and peel were 0.010-0.197% and 0.035-0.951%, respectively. Our findings indicated that the chronic risk of daily consumption of citrus fruit is acceptable at recommended dosage.
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Affiliation(s)
- Zelan Wang
- College of Food Science/the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| | - Junxiao Pang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, 550005, China
| | - Chaoxuan Liao
- Guizhou Academy of Testing and Analysis, Guiyang, 550002, China
| | - Qinghai Zhang
- College of Food Science/the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China.
| | - Dali Sun
- College of Food Science/the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China.
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Li L, Huang P, Li J. Enantioselective effects of the fungicide metconazole on photosynthetic activity in Microcystis flos-aquae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 211:111894. [PMID: 33472108 DOI: 10.1016/j.ecoenv.2021.111894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 06/12/2023]
Abstract
Enantiomers of chiral fungicides usually display different toxic effects on nontarget organisms in the surrounding environment, although there are rare reports on the enantioselective toxicity of metconazole (MEZ) to aquatic organisms, such as Microcystis flos-aquae (M. flos-aquae). To explore the enantioselective toxicity of MEZ in algae, the impact of various concentrations (0.001, 0.003, 0.01, 0.03 and 0.1 mg/L) of MEZ on M. flos-aquae over 8 days was investigated. Significant differences were observed between the four enantiomers in chlorophyll a (Chl a) contents, carotenoids, photochemical efficiency (Fv/Fm), rapid light-response curves (RLCs), utilization efficiency of light energy (α) and protein contents during treatment time. MEZ can enantioselectively stimulate the chlorophyll fluorescence parameters (RLCs, Fv/Fm and α) and carotenoid and Chl a contents of M. flos-aquae, especially at low concentrations (0.001 or 0.003 mg/L). At high concentrations of 0.03 or 0.1 mg/L, the chlorophyll fluorescence parameters (RLCs, Fv/Fm and α), protein and Chl a contents of M. flos-aquae exposed to cis-enantiomers were lower than those of M. flos-aquae exposed to trans-enantiomers. These observations indicated that the enantiomers of MEZ pose different toxicities to M. flos-aquae, with the cis-enantiomers more toxic than the trans-enantiomers. These results are beneficial for understanding the enantioselective effects of MEZ enantiomers on nontarget organisms and helpful for evaluating their eco-environment risk.
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Affiliation(s)
- Ling Li
- College of Chemical Engineering, Huaqiao University, Fujiang 361000, China.
| | - Peiling Huang
- College of Chemical Engineering, Huaqiao University, Fujiang 361000, China
| | - Junjie Li
- College of Chemical Engineering, Huaqiao University, Fujiang 361000, China
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Musarurwa H, Tavengwa NT. Switchable solvent-based micro-extraction of pesticides in food and environmental samples. Talanta 2021; 224:121807. [PMID: 33379033 DOI: 10.1016/j.talanta.2020.121807] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023]
Abstract
Switchable solvents are new generation solvents that are environmentally friendly and can be used for the effective pre-concentration of pesticide residues in food and environmental matrices. They have physico-chemical properties that can be switched abruptly and reversibly between two opposite forms. The common switchable solvents used commonly during pesticide pre-concentration involve polarity switch. Such solvent switch between hydrophobic and hydrophilic forms during pesticide pre-concentration. Secondary and tertiary amines are typical switchable hydrophilicity solvents. The amines are hydrophobic but they abruptly and reversibly switch to their hydrophilic forms on addition of CO2 to them. The application of amine-based switchable solvents during pre-concentration of pesticide residue in food and environmental samples are discussed in this paper. Medium-chain fatty acids can also be used as switchable solvents. Their switch between hydrophobic and hydrophilic forms is usually triggered by pH changes. Applications of fatty acid-based switchable solvents during pre-concentration of pesticide residues are reviewed in this paper. Switchable solvent-based micro-extraction can be combined with other pre-concentration techniques to enhance selectivity resulting in clean chromatograms. This paper has a section dedicated to the application of hyphenated switchable solvent-based micro-extraction techniques during pre-concentration of pesticides in food and environmental samples. In addition, the challenges associated with the use of switchable solvents during micro-extraction of pesticide residues are also discussed.
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Affiliation(s)
- Herbert Musarurwa
- Department of Chemistry, School of Mathematical and Natural Sciences, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa
| | - Nikita Tawanda Tavengwa
- Department of Chemistry, School of Mathematical and Natural Sciences, University of Venda, Private Bag X5050, Thohoyandou, 0950, South Africa.
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Lin X, Pan W, Liu J. Variability of urinary pyrethroid biomarkers in Chinese young-aged men and women over one year. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116155. [PMID: 33280923 DOI: 10.1016/j.envpol.2020.116155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/01/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Pyrethroids are a class of the most commonly used insecticides. The urinary metabolites are usually used as biomarkers of pyrethroid exposures in humans. In this study, the temporal variability of urinary pyrethroid biomarkers was investigated among 114 Chinese young-aged adults who provided up to 4-11 urine samples over one year. The detection rates of four urinary pyrethroid biomarkers, 3-phenoxybenzoic acid (3PBA), 4-fluoro-3-phenoxybenzoic acid (4F-3PBA), trans-2,2-(dichloro)-2-dimethylvinylcyclopropane carboxylic acid (trans-DCCA) and cis-2,2-(dichloro)-2-dimethylvinylcyclopropane carboxylic acid (cis-DCCA) were 100%, 8%, 69% and 44%, respectively. The intraclass correlation coefficient (ICC) estimates for 3PBA indicated poor reproducibility (<0.15) in the spot urine samples of young-aged adults over a week, month and year. Log-transformed 3PBA used the least number of random spot urine samples (≥4) per person, which would provide a reliable biomarker estimate (ICC≥0.40) over a year. As the predictors of the top 33% yearly average 3PBA concentrations, the sensitivity and specificity of 3PBA ranged from 0.25 to 0.89, 0.58 to 0.96, respectively. Based on the results of this study, we recommend at least 4 urine samples collected 3 months apart for prospective assessment of pyrethroid exposure in the epidemiological studies to estimate exposure-response relationships between pyrethroids and health outcomes with relative long-term exposure periods.
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Affiliation(s)
- Xuan Lin
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Wuye Pan
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jing Liu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Adibi JJ, Layden AJ, Yin Q, Xun X, Peddada S, Birru RL. A toolkit for the application of placental-fetal molecular biomarkers in epidemiologic studies of the fetal origins of chronic disease. CURR EPIDEMIOL REP 2020; 8:20-31. [PMID: 33777648 DOI: 10.1007/s40471-020-00258-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose of review In this review, we provide essential background knowledge and an analytical framework for the application of placental-fetal molecular biomarkers in fetal origins chronic disease epidemiology. The widely available and highly quantitative placental hormone human chorionic gonadotropin (hCG) is used as an example. hCG is currently used for diagnosing fetal genetic disorders; yet it can and should be expanded to understanding the fetal origins of chronic diseases. We provide justification and methods to do this. Recent findings Ten papers published in the last 5 years were identified with supportive findings relevant to the application of biomarkers of hCG in epidemiologic studies on the developmental origins of health and disease (DOHaD). Summary There is increasing and consistent evidence that placental-fetal biomarkers may be highly informative in observational studies, as exemplified by hCG, with the correct approaches for measurement and data analysis.
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Affiliation(s)
- Jennifer J Adibi
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Alexander J Layden
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Qing Yin
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health
| | - Xiaoshuang Xun
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
| | - Shyamal Peddada
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health
| | - Rahel L Birru
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health
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Ji C, Yu C, Zhu J, Cheng Y, Tian T, Zhou B, Gu J, Fan J, Zhao M. Four cypermethrin isomers induced stereoselective metabolism in H295R cells. Chirality 2020; 32:1107-1118. [PMID: 32573024 DOI: 10.1002/chir.23254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 11/11/2022]
Abstract
Cypermethrin (CP) is widely used for controlling agricultural and indoor vermin. Previous studies have reported the stereoselective difference of CP in biological activities. However, little is known about their potential mechanisms between metabolic phenotypes and endocrine-disrupting effects. Herein, nuclear magnetic resonance (NMR)-based metabolomics combining metabolite identification and pathway analysis were applied to evaluate the stereoselective metabolic cdisorders induced by CP isomers in human adrenocortical carcinoma cells (H295R) culture medium. Then, gene expression levels related to disturbed metabolic pathways were assessed to verify according to metabolic phenotypes. Metabolomics profiles showed that [(S)-cyano(3-phenoxyphenyl)methyl](1R,3R)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate [(1R,3R,αS)-CP] induced the most significant changes in metabolic phenotypes than did the other stereoisomers. There are 10 differential metabolites (isoleucine, valine, leucine, ethanol, alanine, acetate, aspartate, arginine, lactate, and glucose) as well as two significantly disturbed pathways, including "pyruvate metabolism" and "alanine, aspartate, and glutamate metabolism," that were confirmed in H295R cells culture medium of (1R,3R,αS)-CP compared with other stereoisomers. Polymerase chain reaction (PCR) array also confirmed the results of metabolomics. Our results can help to understand the potential mechanisms between the isomer selectivity in metabolic phenotypes and endocrine-disrupting effects. Data provided here not only lend authenticity to the cautions issued by the scientists and researchers but also offer a solution for the balance between environment and political regulations.
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Affiliation(s)
- Chenyang Ji
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Chang Yu
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jianqiang Zhu
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Yafei Cheng
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Tian Tian
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Bingqi Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, China
| | - Jinping Gu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Jun Fan
- School of Chemistry and Environment, South China Normal University, Guangzhou, China
| | - Meirong Zhao
- College of Environment, Zhejiang University of Technology, Hangzhou, China
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Gu J, Cheng Y, Ji C, Tao Y, Zhao M. Analysis of the Different Metabolic Phenotypes of Metalaxyl Enantiomers in Adolescent Rat by Using 1H NMR Based Urinary Metabolomics. Chem Res Toxicol 2020; 33:1449-1457. [DOI: 10.1021/acs.chemrestox.0c00011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jinping Gu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Yafei Cheng
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Chenyang Ji
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Ying Tao
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
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Zhu J, Xia R, Liu Z, Shen J, Gong X, Hu Y, Chen H, Yu Y, Gao W, Wang C, Wang SL. Fenvalerate triggers Parkinson-like symptom during zebrafish development through initiation of autophagy and p38 MAPK/mTOR signaling pathway. CHEMOSPHERE 2020; 243:125336. [PMID: 31734597 DOI: 10.1016/j.chemosphere.2019.125336] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 11/05/2019] [Accepted: 11/06/2019] [Indexed: 06/10/2023]
Abstract
Fenvalerate (FEN), one of the most used synthetic pyrethroids, has the potential to interfere with human neural function. However, far too little attention was paid to the mechanism of FEN-induced neurotoxicity. Thus we exposed zebrafish to FEN from 4 to 120 h post fertilization (hpf), and analyzed the morphology and behavior of zebrafish. Our results showed that FEN decreased the survival rate of zebrafish, with increased malformation rates and abnormal behaviors. Furthermore, we found typical parkinson-like symptoms in FEN-exposed zebrafish with increases in parkinson's disease (PD), ubiquitin, and Lewy bodies-relevant genes. We also observed the loss of dopaminergic neurons in both FEN-exposed zebrafish and PC12 cells, which were all associated with PD-like symptoms. Besides, FEN activated autophagy by the enhanced expressions of p-mTOR, and LC3-II but the reduction of p62. Further, FEN initially activated p-p38 MAPK followed by p-mTOR, which triggered the transcription of genes responsible for autophagy process and prompted the Lewy bodies neuron generation leading to the PD-like symptoms. This process was inhibited by both 3-methyladenine (3-MA, an autophagy inhibitor) and SB203580 (a p38 MAPK selective inhibitor) in zebrafish and PC12 cells. These results suggest that FEN might cause parkinson-like symptom during zebrafish development through induction of autophagy and activation of p38 MAPK/mTOR signaling pathway. The study revealed the potential mechanism of FEN-induced neurotoxicity and should give new insights into a significant environmental risk factor of developing parkinson's disease.
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Affiliation(s)
- Jiansheng Zhu
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Rong Xia
- Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Zhongwei Liu
- Department of Occupational and Environmental Health Sciences, School of Public Health, West Virginia University, PO Box 9190, 64 Medical Center Drive, Health Sciences Center(South), Room 3302A, Morgantown, WV, 25606, USA
| | - Jiemiao Shen
- Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Xing Gong
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Yuhuan Hu
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Hang Chen
- Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Yongquan Yu
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China
| | - Weimin Gao
- Department of Occupational and Environmental Health Sciences, School of Public Health, West Virginia University, PO Box 9190, 64 Medical Center Drive, Health Sciences Center(South), Room 3302A, Morgantown, WV, 25606, USA
| | - Chao Wang
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China.
| | - Shou-Lin Wang
- State Key Lab of Reproductive Medicine, Institute of Toxicology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China; Key Lab of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, PR China.
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22
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Meyer N, Zenclussen AC. Immune Cells in the Uterine Remodeling: Are They the Target of Endocrine Disrupting Chemicals? Front Immunol 2020; 11:246. [PMID: 32140155 PMCID: PMC7043066 DOI: 10.3389/fimmu.2020.00246] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/30/2020] [Indexed: 12/17/2022] Open
Abstract
Sufficient uterine remodeling is essential for fetal survival and development. Pathologies related to poor remodeling have a negative impact on maternal and fetal health even years after birth. Research of the last decades yielded excellent studies demonstrating the key role of immune cells in the remodeling processes. This review summarizes the current knowledge about the relevance of immune cells for uterine remodeling during pregnancy and further discusses immunomodulatory effects of man-made endocrine disrupting chemicals on immune cells.
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Affiliation(s)
- Nicole Meyer
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Ana Claudia Zenclussen
- Experimental Obstetrics and Gynecology, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
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23
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Giroux M, Vliet SMF, Volz DC, Gan J, Schlenk D. Mechanisms behind interactive effects of temperature and bifenthrin on the predator avoidance behaviors in parr of chinook salmon (Oncorhynchus tshawytscha). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 216:105312. [PMID: 31563086 DOI: 10.1016/j.aquatox.2019.105312] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/15/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
Many coastal systems have been experiencing the effects of non-chemical and chemical anthropological stressors through respective increases in surface water temperatures and rainstorm-derived runoff events of pyrethroid pesticide movement into waterways such as the San Francisco Bay-Delta. Salmonid populations in the Bay-Delta have been dramatically declining in recent decades. Therefore, the aim of this study was to investigate the interactive effects of bifenthrin, a pyrethroid insecticide, and increasing water temperatures on targeted neuroendocrine and behavioral responses in Chinook salmon (Oncorhynchus tshawytscha) parr (10- month post-hatch). Parr were reared at 11 °C, 16.4 °C, or 19 °C for 14 days and, in the final 96 h of rearing, exposed to nominal concentrations of 0, 0.15, or 1.5 μg/L bifenthrin. A predatory avoidance Y-Maze behavioral assay was conducted immediately following exposures. Parr were presented a choice of clean or odorant zones, and locomotive behavior was recorded. Thyroid hormones (T3 and T4), estradiol, and testosterone were quantified within plasma using ELISAs, and the expression of brain hormone and dopamine receptor genes were also evaluated by qPCR. Brain dopamine levels were analyzed by LC/MS. No significant changes were observed in brain transcripts or plasma hormone concentrations with bifenthrin or increasing temperature. However, temperature did significantly lower brain dopamine levels in fish reared at 19 °C compared to 11 °C controls, but was unaltered by bifenthrin treatment. In contrast, parr reared at 11 °C and exposed to 1.5 μg/L bifenthrin spent significantly less time avoiding a predatory odorant compared to vehicle controls reared at 11 °C. The 16.4 °C and 1.5 μg/L-treated fish spent significantly more time in the neutral arm compared to the odorant and clean arms, as well as spending significantly less time in the clean arm compared to the 11 °C control fish. These results suggest that the interaction of temperature and bifenthrin may be adversely impacting predator-avoidance behavior, which may not be related to dopaminergic responses.
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Affiliation(s)
- Marissa Giroux
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA, USA; Department of Environmental Sciences, University of California Riverside, Riverside, CA, USA.
| | - Sara M F Vliet
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA, USA; Department of Environmental Sciences, University of California Riverside, Riverside, CA, USA
| | - David C Volz
- Department of Environmental Sciences, University of California Riverside, Riverside, CA, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California Riverside, Riverside, CA, USA
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California Riverside, Riverside, CA, USA
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24
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Shen Y, Zhang J, Xie J, Liu J. In vitro assessment of corticosteroid effects of eight chiral herbicides. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 55:91-102. [PMID: 31524045 DOI: 10.1080/03601234.2019.1665408] [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: 06/10/2023]
Abstract
Information regarding the enantioselective endocrine disruption of chiral herbicides is scarce. This study assessed the disrupting effects of eight typical chiral herbicides on corticosteroids (including glucocorticoids and mineralocorticoids). Enantioselectivity of eight chiral herbicides were evaluated for their agonistic/antagonistic effects on glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) with CHOK1 cell line using reporter gene assay. Their influence on the production of corticosteroids were further investigated in H295R cell line using enzyme-linked immunosorbent assay (ELISA). None of the racemates or enantiomers of eight chiral herbicides exhibited GR or MR agonistic activity at non-cytotoxic concentrations. However, rac-propisochlor and S-imazamox antagonized cortisol-induced transactivation of GR by 21.79% and 38.73% at the concentration of 1.0 × 10-7 M and 1.0 × 10-6 M, respectively, and R-napropamide remarkably attenuated aldosterone-induced MR transactivation by 68.78% at 1.0 × 10-6 M. The secretion of cortisol was significantly restrained after treated with 1.0 × 10-6 M rac-propisochlor and rac-/R-napropamide at the concentration of 1.0 × 10-6 M by 26.49%, 30.10% and 35.27%, respectively, while this glucocorticoid was remarkably induced by 1.0 × 10-5 M rac-diclofop-methyl and its two enantiomers at the concentration of 1.0 × 10-5 M by 75.60%, 100.1% and 68.78%, respectively. Exposure to rac-propisochlor (1.0 × 10-6 M), S-diclofop-methyl (1.0 × 10-5 M) or rac-/S-/R- acetochlor (1.0 × 10-6 M) and rac-/S-/R-lactofen (1.0 × 10-6 M) inhibited the secretion of aldosterone by approximately 40%. Our findings suggested that chiral herbicides disrupted corticosteroid homeostasis in an enantioselective way. Therefore, more comprehensive screening is required to better understand the ecological and health risks of chiral pesticides.
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Affiliation(s)
- Yuqing Shen
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jianyun Zhang
- Department of Public Health, School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Jingqian Xie
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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25
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Zhang Z, Du G, Gao B, Hu K, Kaziem AE, Li L, He Z, Shi H, Wang M. Stereoselective endocrine-disrupting effects of the chiral triazole fungicide prothioconazole and its chiral metabolite. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 251:30-36. [PMID: 31071630 DOI: 10.1016/j.envpol.2019.04.124] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 06/09/2023]
Abstract
The wide use of chiral fungicides has generated interest in the stereoselectivity of their ecotoxicological effects. However, there are few studies about the potential endocrine-disrupting effects (EDEs) of chiral fungicides. This study evaluated the hormone receptor activities of the chiral triazole fungicide prothioconazole and its metabolite using reporter gene assays. The results indicated that prothioconazole and its metabolite possessed EDEs, and the metabolite exerted more activities than the activities of the parent compound, suggesting that the metabolic process is toxification. Stereoselective EDEs were observed, and the S-enantiomers possessed greater hormonal effects than those possessed by the R-enantiomers; the REC20 values ranged from 7.9 × 10-10 to 6.4 × 10-7 M for the thyroid hormone effects and from 3.2 × 10-9 to 7.8 × 10-8 M for the estrogenic effects. The molecular docking results revealed that the stereoselective EDEs of prothioconazole and its metabolite were partially attributed to enantiospecific receptor binding affinities. Overall, our results reveal that prothioconazole and its metabolite might disrupt the balance of the endocrine system by affecting the function of multiple nuclear hormone receptors and that they have the potential to affect the developmental and reproductive systems in humans.
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Affiliation(s)
- Zhaoxian Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Guizhen Du
- School of Public Health, Nanjing Medical University, Nanjing, 211166, PR China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Kunming Hu
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Amir E Kaziem
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China; Department of Environmental Agricultural Science, Institute of Environmental Studies and Research, Ain Shams University, Cairo, 11566, Egypt
| | - Lianshan Li
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Zongzhe He
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, PR China.
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26
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Chang W, Nie J, Yan Z, Wang Y, Farooq S. Systemic Stereoselectivity Study of Etoxazole: Stereoselective Bioactivity, Acute Toxicity, and Environmental Behavior in Fruits and Soils. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6708-6715. [PMID: 31140799 DOI: 10.1021/acs.jafc.9b01257] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This is the first systemic assessment of the stereoselectivity of etoxazole enantiomers. Etoxazole's stereoselective bioactivity was assessed against target organisms ( Tetranychus urticae eggs and Tetranychus cinnabarinus eggs), and its acute toxicity was assessed toward nontarget aquatic organisms ( Daphnia magna and Danio rerio). Additionally, stereoselective elimination was investigated in three species of fruits (grape and strawberry grown in a greenhouse and apple grown in an open field) and in field soil. The ovicidal activity of (+)-( S)-etoxazole against Tetranychus urticae and Tetranychus cinnabarinus eggs was about 16 and 24 times higher, respectively, than that of (-)-( R)-etoxazole. Inconsistent order of etoxazole isomer toxicity was found toward different aquatic organisms: (+)-( S)-etoxazole showed nearly 8.7 times higher acute toxicity than (-)-( R)-etoxazole toward Daphnia magna, whereas (-)-( R)-etoxazole was ∼4.5 times more toxic to Danio rerio than (+)-( S)-etoxazole. Stereoselective degradation of etoxazole enantiomers showed significant variation in various fruits and field soil. The (+)-( S)-etoxazole was preferentially dissipated in grape and strawberry fruits grown under greenhouse condition, whereas (-)-( R)-etoxazole degraded faster than its antipode in apple fruits and soils under open-field condition. Overall, the stereoselectivity of etoxazole enantiomers should be fully considered in comprehensive environmental health risk in future work.
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Affiliation(s)
- Weixia Chang
- Ministry of Agriculture and Rural Affairs , Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit , Xingcheng 125100 , P. R. China
| | - Jiyun Nie
- Ministry of Agriculture and Rural Affairs , Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit , Xingcheng 125100 , P. R. China
| | - Zhen Yan
- Ministry of Agriculture and Rural Affairs , Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit , Xingcheng 125100 , P. R. China
| | - Yujiao Wang
- Ministry of Agriculture and Rural Affairs , Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit , Xingcheng 125100 , P. R. China
| | - Saqib Farooq
- Ministry of Agriculture and Rural Affairs , Institute of Pomology, Chinese Academy of Agricultural Sciences/Laboratory of Quality & Safety Risk Assessment for Fruit , Xingcheng 125100 , P. R. China
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27
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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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28
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Li S, Sun Q, Wu Q, Gui W, Zhu G, Schlenk D. Endocrine disrupting effects of tebuconazole on different life stages of zebrafish (Danio rerio). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:1049-1059. [PMID: 31146311 DOI: 10.1016/j.envpol.2019.03.067] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/23/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
Tebuconazole is a widely used fungicide that has been detected in water ecosystems, of which the concentrations may affect the endocrine function of aquatic organisms. At present study, tissue-specific bioaccumulation of tebuconazole was found in ovary of adult zebrafish, indicating a potential risk of endocrine disruption. In order to evaluate the potential endocrine disrupting effects, three life stages (2 hpf (hours post-fertilization) -60 dpf (days post-fertilization), Stage I; 60-120 dpf, Stage II; 180-208 dpf, Stage III) of zebrafish (Danio rerio) were chronically exposed to tebuconazole at the concentrations ranging from 0.05 mg/L to 1.84 mg/L. Result showed that exposed to tebuconazole could lead to a male-biased sex differentiation in juvenile zebrafish and significant decrease of the percentage of germ cells in sexually-mature zebrafish. Egg production was significantly inhibited by 57.8% and 19.2% after Stage II- and Stage III-exposures, respectively. The contents of 17β-estradiol in gonad decreased by 63.5% when exposed to 0.20 mg/L tebuconazole at Stage II and by 49.5% after exposed to 0.18 mg/L tebuconazole at Stage III, respectively. For all stages exposure, reductions in 17β-estradiol/testosterone ratio were observed, indicating an imbalance in steroids synthesis. Additionally, tebuconazole reduced the expression of cyp19a, which was consistent with the decrease of E2 level. In overall, the present findings indicated that, playing as an anti-estrogen-like chemical, tebuconazole inhibited the expression of Cyp19, thereby impairing steroid hormones biosynthesis, leading to a diminished fecundity of zebrafish.
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Affiliation(s)
- Shuying Li
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, PR, China; Department of Environmental Sciences, University of California, Riverside, CA, 92521, United States
| | - Qianqian Sun
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, PR, China
| | - Qiong Wu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, PR, China
| | - Wenjun Gui
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, PR, China.
| | - Guonian Zhu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, PR, China
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside, CA, 92521, United States
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29
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Chang J, Xu P, Li W, Li J, Wang H. Enantioselective Elimination and Gonadal Disruption of Lambda-Cyhalothrin on Lizards ( Eremias argus). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2183-2189. [PMID: 30721048 DOI: 10.1021/acs.jafc.8b05990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, the different metabolic pathways of lambda-cyhalothrin (LCT) enantiomers in Eremias argus feces and enantioselective disruption on hypothalamus-pituitary-gonad (HPG) system were investigated. After 7 days oral exposure to LCT enantiomers, the concentration of 3-phenoxybenzoic acid (PBA), hydroxylated and sulfated LCT were higher in the (+)-LCT exposure group than that in the (-)-LCT exposure group, which indicated a higher metabolic rate of (+)-LCT than (-)-LCT. Although no significant differences were seen on lizard body weight after enantiomers' exposure, the gonadosomatic index was dramatically decreased. The testicular impacts such as increased seminiferous tubule diameters were only observed in the (+)-LCT exposure group. Consistent with this result, the expression of ar gene in the (+)-LCT exposure was significantly higher than that in the (-)-LCT exposure group. In addition, the stronger binding affinity of AR with (+)-LCT further demonstrated the more serious disruption of (+)-LCT on lizard HPG axis than (-)-LCT. This study first elucidated the metabolic pathway and endocrine effects of LCT in lizards at enantiomeric level and provided some evidence for lizard population decline.
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Affiliation(s)
- Jing Chang
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing Road 18 , Beijing 100085 , China
| | - Peng Xu
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing Road 18 , Beijing 100085 , China
| | - Wei Li
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing Road 18 , Beijing 100085 , China
| | - Jitong Li
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing Road 18 , Beijing 100085 , China
| | - Huili Wang
- Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Shuangqing Road 18 , Beijing 100085 , China
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30
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Bertotto LB, Dasgupta S, Vliet S, Dudley S, Gan J, Volz DC, Schlenk D. Evaluation of the estrogen receptor alpha as a possible target of bifenthrin effects in the estrogenic and dopaminergic signaling pathways in zebrafish embryos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:2424-2431. [PMID: 30336432 PMCID: PMC6283662 DOI: 10.1016/j.scitotenv.2018.10.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 10/05/2018] [Accepted: 10/06/2018] [Indexed: 05/14/2023]
Abstract
Bifenthrin (BF) is a pyrethroid insecticide widely used in urban and agricultural applications. Previous studies in embryos of zebrafish have shown that BF can affect estradiol biosynthesis and the dopaminergic system. To examine the role of the estrogen receptor (ER) in the endocrine effects of BF, embryos were exposed for 96 h to a mixture of 0.15 and 1.5 μg/L BF and an ER agonist (17α-ethynylestradiol - EE2) at 0.09 μg/L. Transcripts related to estrogenic (vitellogenin VTG) and dopaminergic (tyrosine hydroxylase (TH), dopamine receptor 1 (DR1), monoamine oxidase (MAO), and catechol-O-methyltransferase b (COMTb)) signaling pathways were investigated by qRT-PCR. Dopamine (DA) and its metabolites (homovanillic acid (HVA) and 3,4-dihydroxyphenylacetic acid (DOPAC)) were also measured. There was a significant increase in VTG, DR1, MAO and COMTb mRNA levels and HVA-DA ratios within all zebrafish embryos exposed to EE2, including EE2 alone, 0.15 μg/L BF + EE2 and 1.5 μg/L BF + EE2. A significant decrease in homogenate concentrations of DA was observed within all zebrafish embryos exposed to EE2, which included EE2 alone, 0.15 μg/L BF + EE2 and 1.5 μg/L BF + EE2. Co-exposure of BF with EE2 failed to diminish estrogenic or dopaminergic signaling in embryos. Additionally, embryos with diminished ERα expression by morpholino injection were exposed to 0.15 μg/L BF, 1.5 μg/L BF and 0.09 μg/L EE2, with subsequent gene expression measurements. ERα knockdown did not prevent the effects of BF, indicating ERα may have a limited role in the estrogenic and dopaminergic effects caused by BF in zebrafish embryos.
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Affiliation(s)
- Luísa Becker Bertotto
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA.
| | - Subham Dasgupta
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - Sara Vliet
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - Stacia Dudley
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - David C Volz
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside, CA 92521, USA
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31
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Ye X, Liu J. Effects of pyrethroid insecticides on hypothalamic-pituitary-gonadal axis: A reproductive health perspective. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:590-599. [PMID: 30476888 DOI: 10.1016/j.envpol.2018.11.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/09/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Pyrethroids, a class of ubiquitous insecticides, have been recognized as endocrine-disrupting chemicals (EDCs). A lot of studies have implied the endocrine-disrupting effects of pyrethroids on the hypothalamic-pituitary-gonadal (HPG) axis. However, there are few review articles regarding the effects of pyrethroids on the HPG axis of mammal and human, especially new research progress made in this area. The present review sums up the effects of pyrethroids on the HPG axis-related reproductive outcomes, including epidemiological investigations based on human biomonitoring, animal studies and in vitro tests. Mechanisms have described that the endocrine-disrupting effects of pyrethroids on mammal can be mediated via the interaction with steroid receptors, the direct action on ion channels and signaling molecules. Finally, we summarize the current research gaps and suggest future directions in this topic.
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Affiliation(s)
- Xiaoqing Ye
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; College of Medical Technology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Research Center for Air Pollution and Health, Zhejiang University, Hangzhou 310058, China.
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Gao B, Zhang Z, Li L, Kaziem AE, He Z, Yang Q, Qing P, Zhang Q, Wang M. Stereoselective environmental behavior and biological effect of the chiral organophosphorus insecticide isofenphos‑methyl. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:703-710. [PMID: 30134211 DOI: 10.1016/j.scitotenv.2018.08.182] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/14/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The enantiomeric environmental behaviors, bioactivities and toxicities of isofenphos‑methyl enantiomers were characterized systematically in this study. (R)‑Isofenphos‑methyl was degraded preferentially in Yangtze River water and different types of vegetables with an enantiomeric fraction (EF) of 0.6 to 0.96. However, (R)‑isofenphos‑methyl was amplified in both Nanjing (EF = 0.32) and Nanchang (EF = 0.27) soil. Our investigations found that there no bidirectional chiral inversion occurred in either Yangtze River water or soils. The bioactivity of (S)‑isofenphos‑methyl was higher than that of its (R)‑enantiomer against different insect targets, such as Meloidogyne incognita, Nilaparvata lugens, Plutella xylostella and Macrosiphum pisi (3.7 to 149 times). (S)‑Isofenphos‑methyl showed higher toxicity for the nontarget organism (1.1 to 32 times). However, (R)‑isofenphos‑methyl possesses 4.0 times more potency than the (S)-form for the nontarget soil organism Eisenia foetida. This study generally could provide more scientific guidance for the corresponding risk assessments of pesticides in addition to providing a new theoretical basis for scientifically and rationally using isofenphos‑methyl.
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Affiliation(s)
- Beibei Gao
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Zhaoxian Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Lianshan Li
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Amir E Kaziem
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China; Department of Environmental Agricultural Science, Institute of Environmental Studies and Research, Ain Shams University, Cairo 11566, Egypt
| | - Zongzhe He
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Qianwen Yang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Peiyang Qing
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Qing Zhang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection, Nanjing Agricultural University, State and Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing, Jiangsu 210095, China.
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Zhang Q, Cui Q, Yue S, Lu Z, Zhao M. Enantioselective effect of glufosinate on the growth of maize seedlings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:171-178. [PMID: 30387058 DOI: 10.1007/s11356-018-3576-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 10/23/2018] [Indexed: 06/08/2023]
Abstract
Glufosinate is a non-selective chiral herbicide, which has been used extensively around the world. However, limited information on the enantioselectivity of Rac- and L-glufosinate against crops. In this study, the enantioselective effects on the growth, antioxidant, and targeted enzyme activities of maize seedlings of chiral glufosinate were investigated. The results showed the enantioselective growth inhibitions were observed at both 1 and 5 mg/L concentration levels. L-Glufosinate induced more growth rate reduction in shoot height and weight compared to Rac-glufosinate. All of the antioxidant enzyme activities increased obviously in the leaves of maize seedlings treated by 1 mg/L of glufosinate. Superoxide dismutase (SOD) activity, catalase (CAT) activity, peroxidase (POD) activity, glutathione reductase (GR) activity, and malondialdehyde (MDA) content induced by L-glufosinate were 1.36, 1.16, 1.51, 1.65, and 1.65 times higher than those by Rac-glufosinate, respectively Notably, the glutamine synthetase (GS) activity was significantly reduced to 80% and 57% in the control group at 1 mg/L treated with Rac- and L-glufosinate, respectively. Our results indicated that Rac- and L-glufosinate showed the obvious enantioselectivity in the growth of maize seedlings, which has shed light on the potential enantioselective phytotoxicity of glufosinate. Data provided here will be helpful to develop the environmentally friendly herbicides.
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Affiliation(s)
- Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Qingmiao Cui
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Siqing Yue
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Zhengbiao Lu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, 310032, Zhejiang, China.
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Zhou Y, Wu S, Zhou H, Huang H, Zhao J, Deng Y, Wang H, Yang Y, Yang J, Luo L. Chiral pharmaceuticals: Environment sources, potential human health impacts, remediation technologies and future perspective. ENVIRONMENT INTERNATIONAL 2018; 121:523-537. [PMID: 30292145 DOI: 10.1016/j.envint.2018.09.041] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/20/2018] [Accepted: 09/23/2018] [Indexed: 05/06/2023]
Abstract
Chiral pharmaceuticals (CPs), including non-steroid anti-inflammatory drugs (NSAIDs), β-blockers and some herbicide and pesticides, are widely used in aquaculture, clinical treatment and many other fields. However, people are increasingly concerned about such ubiquitous pollutants, which can frequently be detected in contaminated soil and water. In large part, the significant sources of chiral pharmaceuticals stem from industrial processes, such as the direct discharge of untreated or incompletely treated wastewaters containing chiral pharmaceuticals, incorrect storage and use, animal wastes and biosolids. The main ways for human exposure to chiral pharmaceuticals are the disease treatment process and chiral pharmaceuticals contaminants. According to the results of a series of toxic studies, some diseases, even cancers, may be associated with exposure to certain chiral pharmaceuticals. Therefore, the treatment of chiral pharmaceuticals has become an important issue. The current advanced remediation techniques for chiral pharmaceuticals include the conventional method (sorption and sonolysis), biotransformation (an aerobic granular sludge-sequencing batch reactor and constructed wetland system) and advanced oxidation processes (ozonation and photocatalysis). Herein, in this review, we summarize the current status and sources of chiral pharmaceuticals, potential effects on human health, as well as the superiority, disadvantages and prospects of current advanced remediation technologies. Moreover, we also anticipate the prospect of the future research needed for chiral pharmaceuticals pollutant remediation.
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Affiliation(s)
- Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, Hunan Agricultural University, Changsha 410028, China.
| | - Shikang Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, Hunan Agricultural University, Changsha 410028, China
| | - Hao Zhou
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongli Huang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jia Zhao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yaocheng Deng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Hua Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuan Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jian Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
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Xu C, Lin X, Yin S, Zhao L, Liu Y, Liu K, Li F, Yang F, Liu W. Enantioselectivity in biotransformation and bioaccumulation processes of typical chiral contaminants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:1274-1286. [PMID: 30268979 DOI: 10.1016/j.envpol.2018.09.095] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 09/03/2018] [Accepted: 09/19/2018] [Indexed: 06/08/2023]
Abstract
Chirality is a critical topic in the medicinal and agrochemical fields. One quarter of all agrochemicals was chiral in 1996, and this proportion has increased remarkably with the introduction of new compounds over time. Despite scientists have made great efforts to probe the enantiomeric selectivity of chiral chemicals in the environment since early 1990s, the different behaviours of individual enantiomers in biologically mediated processes are still unclear. In the present review, we highlight state-of-the-knowledge on the stereoselective biotransformation and accumulation of chiral contaminants in organisms ranging from invertebrates to humans. Chiral insecticides, fungicides, and herbicides, polychlorinated biphenyls (PCBs), pharmaceuticals, flame retardants hexabromocyclododecane (HBCD), and perfluorooctane sulfonate (PFOS) are all included in the target compounds. Key findings included: a) Changes in the enantiomeric fractions in vitro and in vivo models revealed that enantioselectivity commonly occurs in biotransformation and bioaccumulation. b) Emerging contaminants have become more important in the field of enantioselectivity together with their metabolites in biological transformation process. c) Chiral signatures have also been regarded as powerful tools for tracking pollution sources when the contribution of precursor is unknown. Future studies are needed in order to understand not only preliminary enrichment results but also detailed molecular mechanisms in diverse models to comprehensively understand the behaviours of chiral compounds.
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Affiliation(s)
- Chenye Xu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xinmeng Lin
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shanshan Yin
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lu Zhao
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yingxue Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Kai Liu
- Department of Environmental Science and Engineering, W. M. Keck Laboratories, California Institute of Technology, 1200 East California Blvd., Pasadena, CA, 91125, USA
| | - Fang Li
- School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Fangxing Yang
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weiping Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Zhang Q, Zhang Z, Tang B, Gao B, Tian M, Sanganyado E, Shi H, Wang M. Mechanistic Insights into Stereospecific Bioactivity and Dissipation of Chiral Fungicide Triticonazole in Agricultural Management. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7286-7293. [PMID: 29944368 DOI: 10.1021/acs.jafc.8b01771] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Research interest in chiral pesticides has increased probably because enantiomers often exhibit different environmental fate and toxicity. An investigation into the enantiomer-specific bioactivity of chiral triticonazole enantiomers in agricultural systems revealed intriguing experimental and theoretical evidence. For nine of the phytopathogens studied ( Rhizoctonia solani, Fusarium verticillioide, Botrytis cinerea (strawberry and tomato), Rhizoctonia cereali, Alternaria solani, Gibberella zeae, Sclerotinia sclerotiorum, and Pyricularia grisea), the fungicidal activity data showed ( R)-triticonazole was 3.11-82.89 times more potent than the ( S) enantiomer. Furthermore, ( R)-triticonazole inhibited ergosterol biosynthesis and cell membrane synthesis 1.80-7.34 times higher than its antipode. Homology modeling and molecular docking studies suggested the distinct bioactivities of the enantiomers of triticonazole were probably due to their different binding modes and affinities to CYP51b. However, field studies demonstrated that ( S)-triticonazole was more persistent than ( R)-triticonazole in fruits and vegetables. The results showed that application of pure ( R)-triticonazole, with its high bioactivity and relatively low resistance risk, instead of the racemate in agricultural management would reduce the application dosage required to eliminate carcinogenic mycotoxins and any environmental risks associated with this fungicide, yielding benefits in food safety and environmental protection.
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Affiliation(s)
- Qing Zhang
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing 210095 , P. R. China
| | - Zhaoxian Zhang
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing 210095 , P. R. China
| | - Bowen Tang
- College of Pharmaceutical Sciences , Xiamen University , Xiamen 361102 , P. R. China
| | - Beibei Gao
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing 210095 , P. R. China
| | - Mingming Tian
- State Key Laboratory of Pollution Control & Resource Reuse, School of the Environment , Nanjing University , Nanjing 210023 , P. R. China
| | - Edmond Sanganyado
- Marine Biology Institute , Shantou University , Shantou 515063 , P. R. China
| | - Haiyan Shi
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing 210095 , P. R. China
| | - Minghua Wang
- Department of Pesticide Science, College of Plant Protection , Nanjing Agricultural University , Nanjing 210095 , P. R. China
- State & Local Joint Engineering Research Center of Green Pesticide Invention and Application , Nanjing 210095 , P. R. China
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Xiang D, Chu T, Li M, Wang Q, Zhu G. Effects of pyrethroid pesticide cis-bifenthrin on lipogenesis in hepatic cell line. CHEMOSPHERE 2018; 201:840-849. [PMID: 29554630 DOI: 10.1016/j.chemosphere.2018.03.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/01/2018] [Accepted: 03/03/2018] [Indexed: 06/08/2023]
Abstract
Mounting evidence suggests there is a link between exposure to synthetic pyrethroids (SPs) and the development of obesity. The information presented in this study suggests that cis-bifenthrin (cis-BF) could activate pregnane X receptor (PXR) mediated pathway and lead to the lipid accumulation of human hepatoma (HepG2) cells. Cells were incubated in the control or different concentrations of cis-BF for 24 h. The 1 × 10-7 M and 1 × 10-6 M cis-BF exposure were found to induce cellular triglyceride (TG) accumulation significantly. This phenomenon was further supported by Oil Red O Staining assay. The cis-BF exposure caused upregulation of PXR gene and protein. Correspondingly, we also observed the increased expression of downstream genes involved in lipid formation and the inhibition of the expression of β-oxidation. As chiral pesticide,cis-BF was further conformed to behave enantioselectivity in the lipid metabolism. Rather than 1R-cis-BF, HepG2 cells incubated with 1S-cis-BF exhibited a significant TG accumulation. 1S-cis-BF also showed a higher binding level, of which the KD value was 9.184 × 10-8 M in the SPR assay, compared with 1R-cis-BF (3.463 × 10-6 M). In addition, the molecular docking simulation analyses correlated well with the KD values measured by the SPR, indicating that 1S-cis-BF showed a better binding affinity with PXR. The results in this study also elucidates the differences between the two enantiomers of pyrethroid-induced toxicity in lipid metabolism of non-target organism.
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Affiliation(s)
- Dandan Xiang
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
| | - Tianyi Chu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
| | - Meng Li
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
| | - Qiangwei Wang
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China.
| | - Guonian Zhu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou 310058, PR China
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Gu J, Ji C, Yue S, Shu D, Su F, Zhang Y, Xie Y, Zhang Y, Liu W, Zhao M. Enantioselective Effects of Metalaxyl Enantiomers in Adolescent Rat Metabolic Profiles Using NMR-Based Metabolomics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5438-5447. [PMID: 29683314 DOI: 10.1021/acs.est.7b06540] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
More than 30% of the registered pesticides are chiral with one or more chiral centers and exist as two or more enantiomers. The frequency of chiral chemicals and their environmental safety has been considered in their risk assessment in recent decades. Despite the fact that metabolic disturbance is an important sensitive molecular initiating event of toxicology effects, the potential mechanisms of how chiral compounds affect metabolism phenotypes in organisms remain unclear. As a typical chiral pesticide, metalaxyl is an acylalanine fungicide with systemic function. Although the fungicidal activity almost comes from the R-enantiomer, the toxicity of both enantiomers in animals and human beings is not yet clear. In this study, a nuclear magnetic resonance (NMR)-based metabolomics approach was adopted to evaluate the enantioselectivity in metabolic perturbations in adolescent rats. On the basis of multivariate statistical results, stable and evident metabolic profiles of the enantiomers were obtained. When rats were exposed to R-metalaxyl, the significantly perturbed metabolic pathways were biosynthesis of valine, leucine, and isoleucine, synthesis and degradation of ketone bodies, and metabolism of glycerolipid. In contrast, more significantly perturbed metabolic pathways were obtained when the rats were exposed to S-metalaxyl, including glycolysis, biosynthesis of valine, leucine, and isoleucine, metabolism of glycine, serine, and threonine, synthesis and degradation of ketone bodies, metabolism of glycerophospholipid and glycerolipid. These abnormal metabolic pathways were closely related to liver metabolism. These results offer more detailed information about the enantioselective metabolic effects of metalaxyl in adolescent development and provide data for the health risk assessment of metalaxyl at molecular level.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Weiping Liu
- College of Environment & Resource Sciences , Zhejiang University , Hangzhou 310058 , China
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Gestational bisphenol S impairs placental endocrine function and the fusogenic trophoblast signaling pathway. Arch Toxicol 2018; 92:1861-1876. [PMID: 29550860 DOI: 10.1007/s00204-018-2191-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/13/2018] [Indexed: 02/07/2023]
Abstract
Exposure to bisphenolic chemicals during pregnancy occurs in > 90% of pregnancies. Bisphenolic compounds can cross the placental barrier reaching fetal circulation. However, the effects of emerging bisphenolic compounds, such as bisphenol S (BPS), on placental function remain untested. The aim was to determine if bisphenol A (BPA) or BPS, at an environmentally relevant dose, impairs placental function. Pregnant sheep were randomly distributed into three treatment groups (n = 7-8/group): control, BPA, and BPS. All animals received daily injections of corn oil (control), BPA, or BPS (0.5 mg/kg; s.c.; internal fetal doses were ~ 2.6 ng/mL unconjugated BPA and ~ 7.7 ng/mL of BPS) from gestational day 30-100. After a 20-day washout period, placentas were weighed and placentomes collected. Placental endocrine function was assessed on biweekly maternal blood samples. Gestational exposure to BPS, but not BPA, reduced maternal circulating pregnancy-associated glycoproteins without change in placental weight or placental stereology. BPS-exposed placentas had 50% lower e-cadherin protein expression, ~ 20% fewer binucleate cells, and ~ threefold higher glial cell missing-1 protein expression. BPA placentas were not affected highlighting the intrinsic differences among bisphenolic chemicals. This is the first study to demonstrate that gestational BPS can result in placental endocrine dysfunction and points to a dysregulation in the fusogenic trophoblast signaling pathway.
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Li C, Cao M, Ma L, Ye X, Song Y, Pan W, Xu Z, Ma X, Lan Y, Chen P, Liu W, Liu J, Zhou J. Pyrethroid Pesticide Exposure and Risk of Primary Ovarian Insufficiency in Chinese Women. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:3240-3248. [PMID: 29444570 DOI: 10.1021/acs.est.7b06689] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pyrethroids are a class of widely used insecticides. Female animal studies suggested that pyrethroid exposure impaired ovarian function, which resulted in similar symptoms of primary ovarian insufficiency (POI). However, it is still unknown whether this association applies to women. In this case-control study, a total of 172 POI patients and 247 control women were recruited in Zhejiang, China. The urinary concentrations of metabolites of pyrethroids, 3-phenoxybenzoic acid (3-PBA) and 4-fluoro-3-phenoxybenzoic acid (4-F-3-PBA), as well as the serum concentrations of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and anti-Mullerian hormone (AMH) were determined. The associations of pyrethroid metabolites with POI and POI-related hormones were accessed using unconditional logistic regression. Higher urinary levels of 3-PBA were significantly associated with increased risk of POI [adjusted odds ratio (OR) = 2.344, 95% CI: 1.193-4.607 for the highest vs lowest quartile of 3-PBA, p = 0.013]. Stratified analyses showed that each log increase in urinary 3-PBA concentration was significantly associated with an induction in odds of 51.0% being in the highest quartile of FSH and 28.6% being in the highest quartile of LH levels, whereas a 25.9% reduction in odds of being in the highest quartile of AMH levels (All p for trend <0.05). To our knowledge, this is the first case-control study to report an association of pyrethroid exposure with increased risk of POI in women.
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Affiliation(s)
- Chunming Li
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Miaofeng Cao
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
| | - Linjuan Ma
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Xiaoqing Ye
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
| | - Yang Song
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Wuye Pan
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
| | - Zhengfen Xu
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Xiaochen Ma
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
| | - Yibing Lan
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Peiqiong Chen
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
| | - Weiping Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
- Research Center for Air Pollution and Health , Zhejiang University , Hangzhou 310058 , China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China
- Research Center for Air Pollution and Health , Zhejiang University , Hangzhou 310058 , China
| | - Jianhong Zhou
- Women's Reproductive Health Key Laboratory of Zhejiang Province, Women's Hospital, School of Medicine , Zhejiang University , Hangzhou 310006 , China
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Bertotto LB, Richards J, Gan J, Volz DC, Schlenk D. Effects of bifenthrin exposure on the estrogenic and dopaminergic pathways in zebrafish embryos and juveniles. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:236-246. [PMID: 28815728 DOI: 10.1002/etc.3951] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/15/2017] [Accepted: 08/13/2017] [Indexed: 05/27/2023]
Abstract
Bifenthrin is a pyrethroid insecticide used in urban and agricultural applications. Previous studies have shown that environmentally relevant (ng/L) concentrations of bifenthrin increased plasma concentrations of 17β-estradiol (E2) and altered the expression of dopaminergic pathway components. The dopaminergic neurons can indirectly regulate E2 biosynthesis, suggesting that bifenthrin may disrupt the hypothalamic-pituitary-gonadal (HPG) axis. Because embryos do not have a complete HPG axis, the hypothesis that bifenthrin impairs dopamine regulation was tested in embryonic and 1-mo-old juvenile zebrafish (Danio rerio) with exposure to measured concentrations of 0.34 and 3.1 µg/L bifenthrin for 96 h. Quantitative reverse transcriptase polymerase chain reaction was used to investigate transcripts of tyrosine hydroxylase (TH), dopamine receptor 1 (DR1) and 2A (DR2A), dopamine active transporter (DAT), estrogen receptor α (ERα), ERβ1, ERβ2, luteinizing hormone β (LHβ), follicle-stimulating hormone β (FSHβ), vitellogenin (VTG), cytochrome P450 cyp19a1a, and cyp19a1b. Levels of E2 were measured by enzyme-linked immunosorbent assay (ELISA). Dopamine and its metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) concentrations were measured by liquid chromatrography-tandem mass spectrometry (LC-MS/MS). Significant decreases in TH and DR1 transcripts and HVA levels, as well as ratios of HVA/dopamine and HVA+DOPAC/dopamine, in zebrafish embryos were observed after bifenthrin treatment. In juveniles, a significant increase in the expression of ERβ1 and the DOPAC to dopamine ratio was noted. These results show a possible antiestrogenic effect of bifenthrin in embryos, and estrogenicity in juveniles, indicating life-stage-dependent toxicity in developing fish. Environ Toxicol Chem 2018;37:236-246. © 2017 SETAC.
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Affiliation(s)
- Luísa Becker Bertotto
- Department of Environmental Sciences, University of California, Riverside, California, USA
| | - Jaben Richards
- Department of Environmental Sciences, University of California, Riverside, California, USA
| | - Jay Gan
- Department of Environmental Sciences, University of California, Riverside, California, USA
| | - David Christopher Volz
- Department of Environmental Sciences, University of California, Riverside, California, USA
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, Riverside, California, USA
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Wang C, Yang J, Hao Z, Gong C, Tang L, Xu Y, Lu D, Li Z, Zhao M. Suppression of progesterone synthesis in human trophoblast cells by fine particulate matter primarily derived from industry. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 231:1172-1180. [PMID: 28935403 DOI: 10.1016/j.envpol.2017.08.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 07/09/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
Epidemiological studies have exhibited a positive association between fine particulate matter (PM2.5) exposure and adverse pregnancy outcome (APO). However, source-related effect and the potential mechanism have not been thoroughly elucidated in toxicology. In this study, PM2.5 was collected during a severe winter haze episode in an energy-base city of China. We coupled this approach with the source appointment by applying the Lagrangian Integrated Trajectory and Concentration Weighted Trajectory model. We observed that the primary trajectory with high polluted air mass came from the northwest of the sampling site. Approximately 90% or more of PM2.5 was derived from the industry at this haze period. Next, the sampled PM2.5 was used to study the classical hormone synthesis pathway on trophoblast JEG-3 cells. PM2.5 induced the secretion of human chorionic gonadotrophin (HCG) and the proliferation of JEG-3 cells at a noncytotoxic concentration. However, the synthesis of progesterone was significantly suppressed, even if both hCG and cyclic adenosine monophosphate (cAMP) were increased, suggesting that PM2.5 may interfere the downstream of cAMP. As expected, the phosphorylated activity of protein kinase A (PKA) was attenuated. Subsequently, the downstream molecules of steroidogenesis, such as ferredoxin reductase (FDXR), CYP11A1 (encoded P450scc), and 3β-Hydroxysteroid dehydrogenase type 1 (3β-HSD1), were inhibited. Therefore, PM2.5, primarily derived from industry, may directly inhibit the phosphorylation status of PKA in JEG-3 which, in turn, inhibited the proteins expression in progesterone-synthesis to suppress progesterone levels. Considering the pivotal role of progesterone in pregnancy maintenance, the mechanism on hormone synthesis may provide a better understanding for PM2.5-caused APO. Industry-emanated PM2.5, though not specific, could threaten the placenta, which needs to be verified by further epidemiological studies.
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Affiliation(s)
- Cui Wang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Jinhuan Yang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhengliang Hao
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Chenxue Gong
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Lihua Tang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yingling Xu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Dezhao Lu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhuoyu Li
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Meirong Zhao
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
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Li F, Ma H, Liu J. Pyrethroid Insecticide Cypermethrin Modulates Gonadotropin Synthesis via Calcium Homeostasis and ERK1/2 Signaling in LβT2 Mouse Pituitary Cells. Toxicol Sci 2017; 162:43-52. [DOI: 10.1093/toxsci/kfx248] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Feixue Li
- Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 310036, China
| | - Huihui Ma
- MOE Key Lab of Environmental Remediation and Ecosystem Health
| | - Jing Liu
- MOE Key Lab of Environmental Remediation and Ecosystem Health
- Research Center for Air Pollution and Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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44
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Chen Z, Wang J, Chen H, Wen Y, Liu W. Enantioselective Phytotoxicity of Dichlorprop to Arabidopsis thaliana: The Effect of Cytochrome P450 Enzymes and the Role of Fe. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:12007-12015. [PMID: 28906105 DOI: 10.1021/acs.est.7b04252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ecotoxicology effects of chiral herbicides have long been recognized and have drawn increasing attention. The toxic mechanisms of herbicides in plants are involved in production of reactive oxygen species (ROS) and cause damage to target enzymes, but the relationship between these two factors in the enantioselectivity of chiral herbicides has rarely been investigated. Furthermore, even though cytochromes P450 enzymes (CYP450s) have been related to the phytotoxicity of herbicides, their roles in the enantioselectivity of chiral herbicides have yet to be explored. To solve this puzzle, the CYP450s suicide inhibitor 1-aminobenzotriazole (ABT) was added to an exposure system made from dichlorprop (DCPP) enantiomers in the model plant Arabidopsis thaliana. The results indicated that different phytotoxicities of DCPP enantiomers by causing oxidative stress and acetyl-CoA carboxylase (ACCase) damage were observed in the presence and the absence of ABT. The addition of ABT decreased the toxicity of (R)-DCPP but was not significantly affected that of (S)-DCPP, resulting in smaller differences between enantiomers. Furthermore, profound differences were also observed in Fe uptake and distribution, exhibiting different distribution patterns in A. thaliana leaves exposed to DCPP and ABT, which helped bridge the relationship between ROS production and target enzyme ACCase damage through the function of CYP450s. These results offer an opportunity for a more-comprehensive understanding of chiral herbicide action mechanism and provide basic evidence for risk assessments of chiral herbicides in the environment.
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Affiliation(s)
- Zunwei Chen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
- Department of Veterinary Integrative Bioscience, Texas A&M University , College Station, Texas 77843, United States
| | - Jia Wang
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Hui Chen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Yuezhong Wen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
| | - Weiping Liu
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou 310058, China
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Cavalieri V, Spinelli G. Environmental epigenetics in zebrafish. Epigenetics Chromatin 2017; 10:46. [PMID: 28982377 PMCID: PMC5629768 DOI: 10.1186/s13072-017-0154-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/27/2017] [Indexed: 02/06/2023] Open
Abstract
It is widely accepted that the epigenome can act as the link between environmental cues, both external and internal, to the organism and phenotype by converting the environmental stimuli to phenotypic responses through changes in gene transcription outcomes. Environmental stress endured by individual organisms can also enforce epigenetic variations in offspring that had never experienced it directly, which is termed transgenerational inheritance. To date, research in the environmental epigenetics discipline has used a wide range of both model and non-model organisms to elucidate the various epigenetic mechanisms underlying the adaptive response to environmental stimuli. In this review, we discuss the advantages of the zebrafish model for studying how environmental toxicant exposures affect the regulation of epigenetic processes, especially DNA methylation, which is the best-studied epigenetic mechanism. We include several very recent studies describing the state-of-the-art knowledge on this topic in zebrafish, together with key concepts in the function of DNA methylation during vertebrate embryogenesis.
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Affiliation(s)
- Vincenzo Cavalieri
- Laboratory of Molecular Biology and Functional Genomics, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Edificio 16, 90128, Palermo, Italy. .,Zebrafish Laboratory, Advanced Technologies Network (ATeN) Center, University of Palermo, Viale delle Scienze Edificio 18, 90128, Palermo, Italy.
| | - Giovanni Spinelli
- Laboratory of Molecular Biology and Functional Genomics, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Edificio 16, 90128, Palermo, Italy.
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Zhang Q, Zhang Y, Du J, Zhao M. Environmentally relevant levels of λ-cyhalothrin, fenvalerate, and permethrin cause developmental toxicity and disrupt endocrine system in zebrafish (Danio rerio) embryo. CHEMOSPHERE 2017; 185:1173-1180. [PMID: 28772355 DOI: 10.1016/j.chemosphere.2017.07.091] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/16/2017] [Accepted: 07/17/2017] [Indexed: 06/07/2023]
Abstract
Synthetic pyrethroids (SPs) are one of the most widely used pesticides and frequently detected in the aquatic environment. Previous studies have shown that SPs posed high aquatic toxicity, but information on the developmental toxicity and endocrine disruption on zebrafish (Danio rerio) at environmentally relevant concentrations is limited. In this study, zebrafish embryos were employed to examine the adverse effects of λ-cyhalothrin (LCT), fenvalerate (FEN), and permethrin (PM) at 2.5, 10, 25, 125, 500 nM for 96 h. The results showed these 3 SPs caused dose-dependent mortality, malformation rate, and hatching rate. Thyroid hormone triiodothyronine (T3) levels were significantly decreased after exposure to LCT and FEN. Quantitative real-time PCR analysis was then performed on a series of nuclear receptors (NRs) genes involved in the hypothalamic-pituitary-gonadal (HPG), hypothalamic-pituitary-thyroid (HPT), hypothalamic-pituitary-adrenocortical (HPA) axes, and oxidative-stress-related system. Our results showed that LCT, FEN, and PM downregulated AR expression while upregulated ER1 expression, and caused alteration to ER2a and ER2b expression. As for the expression of TRα and TRβ, they were both decreased following exposure to the 3 SPs. LCT and PM downregulated the MR expression and FEN induced MR expression. In addition, the expression of GR was increased after treating with LCT, while it was suppressed after exposure to FEN and PM. The 3 SPs also caused various alterations to the expression of genes including AhRs, PPARα, and PXR. These findings suggest that these 3 SPs may cause developmental toxicity to zebrafish larvae by disrupting endocrine signaling at environmentally relevant concentrations.
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Affiliation(s)
- Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Yi Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Jie Du
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China.
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Song Q, Zhang Y, Yan L, Wang J, Lu C, Zhang Q, Zhao M. Risk assessment of the endocrine-disrupting effects of nine chiral pesticides. JOURNAL OF HAZARDOUS MATERIALS 2017; 338:57-65. [PMID: 28531659 DOI: 10.1016/j.jhazmat.2017.05.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 05/06/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
The increased release of chiral pesticides into the environment has generated interest in the role of enantioselectivity in the environmental fate and ecotoxicological effects of these compounds. However, the information on the endocrine disrupting effects (EDEs) of chiral pesticides is still limited and discrepancies are also usually observed among different assays. In this study, we investigated the enantioselectivity of EDEs via estrogen and thyroid hormone receptors for nine chiral pesticides using in vitro and in silico approaches. The results of the luciferase reporter gene assays showed 7 chiral pesticides possessed enantioselective estrogenic activities and 2 chiral pesticides exerted thyroid hormone antagonistic effects. Proliferation assays in MCF-7 and GH3 cells were also used to verify the results of the dual-luciferase reporter gene assays. At last, the molecular docking results indicated that the enantioselective EDEs of chiral pesticides were partially due to enantiospecific binding affinities with receptors. Our data not only show enantioselective EDEs of nine chiral pesticides, but also would be helpful to better understanding the molecular biological mechanisms of enantioselectivity in EDEs of chiral pesticides.
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Affiliation(s)
- Qin Song
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Yi Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Lu Yan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Jinghua Wang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China
| | - Chensheng Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Landmark Center West, Boston, MA, 02215, USA
| | - Quan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Landmark Center West, Boston, MA, 02215, USA.
| | - Meirong Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, 310032, China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Landmark Center West, Boston, MA, 02215, USA
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48
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Corcellas C, Andreu A, Máñez M, Sergio F, Hiraldo F, Eljarrat E, Barceló D. Pyrethroid insecticides in wild bird eggs from a World Heritage Listed Park: A case study in Doñana National Park (Spain). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 228:321-330. [PMID: 28551562 DOI: 10.1016/j.envpol.2017.05.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/20/2017] [Accepted: 05/14/2017] [Indexed: 06/07/2023]
Abstract
Recent studies demonstrated that the common pyrethroid insecticides are present in aquatic biota tissues. In this study, 123 samples of unhatched eggs of 16 wild bird species collected from 2010 to 2012 in Doñana National and Natural Park were analysed to determine 13 pyrethroids. This study represents the first time that pyrethroids are detected in tissues of terrestrial biota, 93% of these samples being positive to those pollutants. Levels of total pyrethroids ranged from not detected to 324 ng g-1 lw. The samples were characterized by stable isotope analysis. Species with diets based on anthropogenic food showed higher levels of pyrethroids and lower values of δ15N. Finally, we characterized the isomers of pyrethroids and discerned some isomeric- and enantiomeric-specific accumulations. In particular, tetramethrin and cyhalothrin showed an enantiomeric-selective accumulation of one enantiomer, highlighting the need to assess toxicological effects of each enantiomer separately to be able to make a correct risk assessment of pyrethroids in birds.
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Affiliation(s)
- Cayo Corcellas
- Water and Soil Quality Research Group, Dep. of Environmental Chemistry (IDAEA-CSIC), Barcelona, Spain
| | - Ana Andreu
- Natural Processes Monitoring Team, Estación Biológica de Doñana (EBD-CSIC), c/Américo Vespucio s/n, 41092 Seville, Spain
| | - Manuel Máñez
- Natural Processes Monitoring Team, Estación Biológica de Doñana (EBD-CSIC), c/Américo Vespucio s/n, 41092 Seville, Spain
| | - Fabrizio Sergio
- Department of Applied Biology, Doñana Biological Station (EBD-CSIC), Seville, Spain
| | - Fernando Hiraldo
- Department of Applied Biology, Doñana Biological Station (EBD-CSIC), Seville, Spain
| | - Ethel Eljarrat
- Water and Soil Quality Research Group, Dep. of Environmental Chemistry (IDAEA-CSIC), Barcelona, Spain.
| | - Damià Barceló
- Water and Soil Quality Research Group, Dep. of Environmental Chemistry (IDAEA-CSIC), Barcelona, Spain; Catalan Institute for Water Research (ICRA), Girona, Spain
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Yang Y, Ji D, Huang X, Zhang J, Liu J. Effects of metals on enantioselective toxicity and biotransformation of cis-bifenthrin in zebrafish. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:2139-2146. [PMID: 28112430 DOI: 10.1002/etc.3747] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/16/2016] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
Co-occurrence of pyrethroids and metals in watersheds previously has been reported to pose great risk to aquatic species. Pyrethroids are a class of chiral insecticides that have been shown to have enantioselective toxicity and biotransformation. However, the influence of metals on enantioselectivity of pyrethroids has not yet been evaluated. In the present study, the effects of cadmium (Cd), copper (Cu), and lead (Pb) on the enantioselective toxicity and metabolism of cis-bifenthrin (cis-BF) were investigated in zebrafish at environmentally relevant concentrations. The addition of Cd, Cu, or Pb significantly increased the mortality of zebrafish in racemate and R-enantiomer of cis-BF-treated groups. In rac-cis-BF- or 1R-cis-BF-treated groups, the addition of Cd, Cu, or Pb caused a decrease in enantiomeric fraction (EF) and an increased ratio of R-enantiomer residues in zebrafish. In 1S-cis-BF-treated groups, coexposure to Cd led to a lower EF and decreased residue levels of S-enantiomer. In addition, coexposure to the 3 metals resulted in different biodegradation characteristics of each enantiomer accompanied with differential changes in the expression of cytochrome P450 (CYP)1, CYP2, and CYP3 genes, which might be responsible for the enantioselective biodegradation of cis-BF in zebrafish. These results suggest that the influence of coexistent metals should be considered in the ecological risk assessment of chiral pyrethroids in aquatic environments. Environ Toxicol Chem 2017;36:2139-2146. © 2017 SETAC.
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Affiliation(s)
- Ye Yang
- Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
- Institute of Hygiene, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Dapeng Ji
- Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xin Huang
- Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jianyun Zhang
- Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jing Liu
- Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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50
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Ye X, Pan W, Zhao Y, Zhao S, Zhu Y, Liu W, Liu J. Association of pyrethroids exposure with onset of puberty in Chinese girls. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 227:606-612. [PMID: 28501319 DOI: 10.1016/j.envpol.2017.04.035] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 04/14/2017] [Accepted: 04/14/2017] [Indexed: 06/07/2023]
Abstract
Pyrethroids, a class of ubiquitous insecticides, have been considered as endocrine-disrupting chemicals (EDCs). Female animal studies suggested that early-life pyrethroids exposure might delay puberty onset. However, it remains unclear whether this association applies to human populations. A total of 305 girls at the ages of 9-15 years old were recruited in Hangzhou, China in this study. The concentration of the common metabolite of pyrethroids, 3-phenoxybenzoic acid (3-PBA), was analyzed in urine samples to reflect the exposure level of pyrethroids. The associations of 3-PBA with pubertal stages were evaluated using a multinomial logistic regression model. The geometric mean level of 3-PBA was 1.11 μg/L (1.42 μg/g for creatinine-adjusted concentration). There was a significant 45% reduction in odds of being in breast stage 3 (B3) per one-unit increase in the log-transformed 3-PBA levels [OR = 0.55 (95%CI: 0.31-0.98), p = 0.042]. A similar negative association was found between urinary 3-PBA levels with later onset by pubic hair stage 2 (P2) [OR = 0.56 (95%CI: 0.36-0.90), p = 0.015]. Similar negative association was also observed between urinary 3-PBA levels and pubertal onset indicated by menarche [OR = 0.51 (95%CI: 0.28-0.93), p = 0.029]. For the first time to our knowledge, this work reveals that pyrethroids exposure may increase the risk of delayed pubertal onset in girls.
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Affiliation(s)
- Xiaoqing Ye
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wuye Pan
- Research Center for Air Pollution and Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuehao Zhao
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shilin Zhao
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yimin Zhu
- School of Public Health, Zhejiang University, Hangzhou 310058, China
| | - Weiping Liu
- Research Center for Air Pollution and Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jing Liu
- MOE Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Research Center for Air Pollution and Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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