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Phogat A, Singh J, Sheoran R, Hasanpuri A, Chaudhary A, Bhardwaj S, Antil S, Kumar V, Prakash C, Malik V. Berberine Attenuates Acetamiprid Exposure-Induced Mitochondrial Dysfunction and Apoptosis in Rats via Regulating the Antioxidant Defense System. J Xenobiot 2024; 14:1079-1092. [PMID: 39189176 PMCID: PMC11348026 DOI: 10.3390/jox14030061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/21/2024] [Accepted: 08/06/2024] [Indexed: 08/28/2024] Open
Abstract
Acetamiprid (ACMP) is a neonicotinoid insecticide that poses a significant threat to the environment and mankind. Oxidative stress and mitochondrial dysfunction are considered prime contributors to ACMP-induced toxic effects. Meanwhile, berberine (BBR) a natural plant alkaloid, is a topic of interest because of its therapeutic and prophylactic actions. Therefore, this study evaluated the effects of BBR on ACMP-mediated alterations in mitochondrial functions and apoptosis in rat liver tissue. Male Wistar rats were divided into four groups: (I) control, (II) BBR-treated, (III) ACMP-exposed, and (IV) BBR+ACMP co-treated groups. The doses of BBR (150 mg/kg b.wt) and ACMP (1/10 of LD50, i.e., 21.7 mg/kg b.wt) were given intragastrically for 21 consecutive days. The results showed that the administration of ACMP diminished mitochondrial complex activity, downregulated complex I (ND1 and ND2) and complex IV (COX1 and COX4) subunit mRNA expression, depleted the antioxidant defense system, and induced apoptosis in rat liver. BBR pre-treatment significantly attenuated ACMP-induced mitochondrial dysfunction by maintaining mitochondrial complex activity and upregulating ND1, ND2, COX1, and COX4 mRNA expression. BBR reversed ACMP-mediated apoptosis by diminishing Bax and caspase-3 and increasing the Bcl-2 protein level. BBR also improved the mitochondrial antioxidant defense system by upregulating mRNA expression of PGC-1α, MnSOD, and UCP-2 in rat liver tissue. This study is the first to evaluate the protective potential of BBR against pesticide-induced mitochondrial dysfunction in liver tissue. In conclusion, BBR offers protection against ACMP-induced impairment in mitochondrial functions by maintaining the antioxidant level and modulating the apoptotic cascade.
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Affiliation(s)
- Annu Phogat
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
| | - Jagjeet Singh
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
- Department of Biochemistry, Maharshi Dayanand University, Rohtak 124001, India;
| | - Reena Sheoran
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
| | - Arun Hasanpuri
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
| | - Aakash Chaudhary
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
| | - Shakti Bhardwaj
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
| | - Sandeep Antil
- Department of Zoology, ANDC College, University of Delhi, New Delhi 110019, India;
| | - Vijay Kumar
- Department of Biochemistry, Maharshi Dayanand University, Rohtak 124001, India;
| | - Chandra Prakash
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Vinay Malik
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (A.P.); (J.S.); (R.S.); (A.H.); (A.C.); (S.B.)
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Erminia Schiano M, Sodano F, Cassiano C, Magli E, Seccia S, Grazia Rimoli M, Albrizio S. Monitoring of seven pesticide residues by LC-MS/MS in extra virgin olive oil samples and risk assessment for consumers. Food Chem 2024; 442:138498. [PMID: 38245984 DOI: 10.1016/j.foodchem.2024.138498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/23/2024]
Abstract
Residue levels of seven pesticides were analyzed in thirty-five samples of Extra Virgin Olive Oil to assess the health risk of consuming Italian oils correlated with the presence of these pesticides. An in-house analytical procedure was developed and validated, consisting of a specific dispersive solid-phase extraction using the QuEChERS technique and a qualitative-quantitative analysis using liquid chromatography coupled with tandem mass spectrometry. Thirty-four percent of the samples were contaminated with pesticide residues; in the concentration range of 0.53-0.56 ng/mL for imazalil, 1.11-1.56 ng/mL for acetamiprid-N-desmethyl, 1.28-1.46 ng/mL for clothianidin, 0.94-1.49 ng/mL for thiacloprid, 1.08-4.64 ng/mL for dinotefuran, 0.42-1.47 ng/mL for thiamethoxam, 0.42-6.14 ng/mL for imidacloprid). Risk assessment was evaluated using the hazard quotient, hazard index, and Pesticide Residue Intake Model by EFSA. All hazard indices confirmed that the concentrations of pesticides detected in the oil samples did not represent a short or long-term risk for consumers' health.
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Affiliation(s)
- Marica Erminia Schiano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy; Consorzio Interuniversitario INBB, Viale Medaglie d'Oro, 305, I-00136 Rome, Italy; Istituto per i Polimeri, Compositi e Biomateriali (IPCB) - Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, I-80078 Pozzuoli, Naples, Italy.
| | - Federica Sodano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy.
| | - Chiara Cassiano
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy.
| | - Elisa Magli
- Dipartimento di Sanità, Università degli Studi di Napoli Federico II, Via Pansini, 5, I-80131 Naples, Italy.
| | - Serenella Seccia
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy.
| | - Maria Grazia Rimoli
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy; Consorzio Interuniversitario INBB, Viale Medaglie d'Oro, 305, I-00136 Rome, Italy.
| | - Stefania Albrizio
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano, 49, I-80131 Naples, Italy; Consorzio Interuniversitario INBB, Viale Medaglie d'Oro, 305, I-00136 Rome, Italy.
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Priyadarshani WVD, de Namor AFD, Silva SRP. Rising of a global silent killer: critical analysis of chronic kidney disease of uncertain aetiology (CKDu) worldwide and mitigation steps. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:2647-2662. [PMID: 36094692 DOI: 10.1007/s10653-022-01373-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 08/22/2022] [Indexed: 06/01/2023]
Abstract
Chronic kidney disease of uncertain aetiology (CKDu) is an advanced version of chronic kidney disease (CKD) which bears a high burden on the world health economy. More than 200 articles were analysed to understand the disease responsible for more than 30,000 deaths per year. CKDu is a non-communicable occupational disease that has a progressive deterioration of the kidney in the absence of CKD risk factors such as hypertension, diabetes and glomerulonephritis, while the diagnosis is only possible at the later stages when kidney function is no longer effective. Published evidence for the existence of CKDu was found for around 35 countries. This is a growing health issue in Asia, Central America, Africa and Middle East with identified hot spots. Despite many research studies over decades, the exact root causes are still uncertain. Six main suspected causative factors are identified. Those are heat stress, strenuous labour, dehydration, use of agrochemicals, exposure to heavy metals and the use of polluted water and agricultural lands. This review summarizes four key areas which are CKDu and its general medical background, worldwide prevalence, suspected causative factors and potential circumventing steps to mitigate against CKDu. The importance of further studies addressing early detection and surveillance methods, contribution of nephrotoxins in environmental health, soil chemistry on transporting nephrotoxins, geological parameters which influence the prevalence of the disease and other related sectors to overcome the mysterious nature is highlighted. Mitigation steps to lessen the burden of CKDu are also identified.
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Affiliation(s)
| | | | - S Ravi P Silva
- Advanced Technology Institute, University of Surrey, Guildford, UK.
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4
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Dong S, He K, Yang J, Shi Q, Guan L, Chen Z, Feng J. A simple mesoporous silica Nanoparticle-based aptamers SERS sensor for the detection of acetamiprid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 283:121725. [PMID: 35985229 DOI: 10.1016/j.saa.2022.121725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
In this study, we developed a novel, rapid, simple, and sensitive nano sensor based on the controlled release of 4-Aminothiophenol (4-ATP) signal molecules from aptamers (Apts) modified aminated mesoporous silica nanoparticles (MSNs-NH2) for the quantitative detection of acetamiprid (ACE). Firstly, we synthesized the positively charged MSNs-NH2 by one-pot method, then loaded 4-ATP signal molecules into the pore, and finally electrostatically adsorbed the Apts onto the MSNs-NH2, which acts as a gate to control the release of signal molecules. When ACE is added to the system, ACE preferentially and specifically binds to Apts, so the gate opens and 4-ATP signal molecules are released from the pore. Meanwhile, the silver-loaded mesoporous silica nanoparticles (Ag@SiO2) were prepared by one-pot method as surface-enhanced Raman spectroscopy (SERS) substrate to amplify the signal. The intensity of 4-ATP signal molecules at 1433 cm-1 position was observed to has a linear relationship with the concentration of ACE by SERS detection. Under the optimized detection conditions, a linear correlation was observed in the range of 5-60 ng/mL (R2 = 0.99749), and the limit of detection (LOD) was 2.66 ng/mL. The method has high sensitivity, good selectivity and reproducibility, and can be used for actual sample analysis with the recovery rate of 96.24-103.6 %. This study provides a reference for the rapid and convenient detection of ACE in agricultural products.
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Affiliation(s)
- Sa Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China.
| | - Kangli He
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jinghan Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Qiuyun Shi
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Lingjun Guan
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Zhiyang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, China.
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5
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He K, Yang J, Shi Q, Guan L, Sun L, Chen Z, Feng J, Dong S. Fluorescent aptamer-modified mesoporous silica nanoparticles for quantitative acetamiprid detection. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:88182-88192. [PMID: 35831655 DOI: 10.1007/s11356-022-21970-9] [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: 04/29/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Acetamiprid (ACE) is widely used to control aphids, brown planthoppers, and other pests in agricultural production. However, ACE is difficult to degrade in the environment, resulting in excessive residue, which causes acute and chronic toxicity to human beings and non-target organisms. Therefore, the development of a rapid, convenient, and highly sensitive method to quantify ACE is essential. In this study, aminated mesoporous silica nanoparticles (MSNs-NH2) were synthesized by one-pot method, and 6-carboxyl fluorescein modified aptamers (FAM-Apt) of ACE were adsorbed on the surface of MSNs-NH2 by electrostatic interaction. Finally, a simple and sensitive fluorescence analysis method for the rapid detection of ACE was established. In the absence of ACE, the negatively charged FAM-Apt was electrostatically bound to the positively charged MSNs-NH2, followed by centrifugation to precipitate MSNs-NH2@FAM-Apt, and no fluorescent signal was detected in the supernatant. In the presence of ACE, the specific combination of FAM-Apt with ACE was greater than its electrostatic interaction with MSNs-NH2, so that FAM-Apt was separated from MSNs-NH2, and the supernatant had strong fluorescence signal after centrifugation. For ACE detection, the linear concentration range was 50-1100 ng/mL, and the detection limit (LOD) was 30.26 ng/mL. The method exhibited high sensitivity, selectivity and reproducibility, which is suitable for practical sample analysis and provides guidance for rapid detection of pesticide residues.
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Affiliation(s)
- Kangli He
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jinghan Yang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Qiuyun Shi
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Lingjun Guan
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Li Sun
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Zhiyang Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Sa Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China.
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Mahai G, Wan Y, Xia W, Wang A, Qian X, Li Y, He Z, Li Y, Xu S. Exposure assessment of neonicotinoid insecticides and their metabolites in Chinese women during pregnancy: A longitudinal study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151806. [PMID: 34808166 DOI: 10.1016/j.scitotenv.2021.151806] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/29/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Neonicotinoid insecticides (NNIs) are the most widely used insecticides globally and ubiquitous in the environment, which has led to widespread human exposure. However, studies on internal exposure levels of NNIs and their metabolites in pregnant women are scarce. In this study, we measured nine parent NNIs and ten main metabolites in 1224 urine samples donated by 408 pregnant women at three trimesters. In the urine samples, the unadjusted vs. specific gravity (SG) adjusted median concentrations and detection frequencies (DFs) of desmethyl-acetamiprid (DM-ACE; 1.01 vs. 1.08 ng/mL; DF: 99.7%), 5-hydroxy-imidacloprid (5-hydroxy-IMI; 0.54 vs. 0.56 ng/mL; 98.5%), imidacloprid-olefin (IMI-olefin; 0.41 vs. 0.44 ng/mL; 99.3%), and desnitro-imidacloprid (DN-IMI; 0.12 vs. 0.12 ng/mL; 90.4%) were higher than their corresponding parent NNIs, acetamiprid (ACE; <0.01 vs. <0.01 ng/mL; 26.4%) and imidacloprid (IMI; 0.04 vs. 0.04 ng/mL; 69.9%). The unadjusted and SG-adjusted median concentrations of clothianidin (CLO), thiamethoxam (THM), and desmethyl-clothianidin (DM-CLO) were 0.05 vs. 0.07, 0.05 vs. 0.06, and 0.04 vs. 0.05 ng/mL, with the DFs of 61.0%, 57.5%, and 75.7%, respectively. The cumulative exposure level, imidacloprid-equivalent total NNIs (IMIeq), was generated by the relative potency factor approach considering the toxic effects of NNIs and their metabolites. The unadjusted IMIeq varied from 0.17 ng/mL (SG-adjusted: 0.20) to 1969 ng/mL (SG-adjusted: 1817) with a median of 14.1 ng/mL (SG-adjusted: 14.1). A decreased trend was observed in urinary NNIs and their metabolites throughout the three trimesters. Maternal age, educational level, and household income were related to the concentrations of NNIs and their metabolites. DM-ACE, 5-hydroxy-IMI, and IMI-olefin were significantly lower in winter than in autumn; DN-IMI, THM, CLO, and DM-CLO were significantly higher in both summer and autumn than in winter. The maximum estimated daily intake of IMIeq [34.8 μg/kg-body weight (bw)/d] was lower than the chronic reference dose of IMI (57 μg/kg-bw/d) currently recommended by the United States Environmental Protection Agency. Human health risk of exposure to NNIs and their main metabolites warranted further studies.
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Affiliation(s)
- Gaga Mahai
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Prevention & Control, Wuhan, Hubei 430024, PR China.
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Aizhen Wang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Xi Qian
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Ying Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Zhenyu He
- Institute of Environmental Health, Wuhan Centers for Disease Prevention & Control, Wuhan, Hubei 430024, PR China.
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, PR China.
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Nimako C, Ichise T, Hasegawa H, Akoto O, Boadi NO, Taira K, Fujioka K, Isoda N, Nakayama SMM, Ishizuka M, Ikenaka Y. Assessment of ameliorative effects of organic dietary interventions on neonicotinoid exposure rates in a Japanese population. ENVIRONMENT INTERNATIONAL 2022; 162:107169. [PMID: 35289289 DOI: 10.1016/j.envint.2022.107169] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Neonicotinoid insecticides (NNIs) are a popular class of insecticides used in various pest management regimens worldwide. Biomonitoring studies continuously report high exposure rates of NNIs in various human populations across the globe. Yet, there is no validated countermeasure for combating the recent exponential rise in NNI exposure rates observed in human populations. The current study assessed the impacts of organic dietary interventions on NNI exposure rates in a Japanese population. A total of 103 volunteers were recruited into the study. Subjects were either served with Organic diets for 5 and 30 days or conventional diets. A total of 919 repeated urine samples were collected from the participants and then subjected to LC-MS/MS analysis to determine urinary concentrations of 7 NNIs parent compounds and an NNI metabolite. Eight NNIs were detected; with a decreasing detection frequency (%Dfs) pattern; desmethyl-acetamiprid (dm-ACE) (64.96%) > dinotefuran (52.12%), imidacloprid (39.61%) > clothianidin (33.95%) > thiamethoxam (28.51%) > acetamiprid (12.62%) > nitenpyram (5.33%) > thiacloprid (2.83%). Dinotefuran, dm-ACE, and clothianidin recorded the highest concentrations in the subjects. The %Df of NNIs in the 5-days or 30-days organic diet group were lower than those of the conventional diet consumers. The organic diet group showed lower rates of multiple NNI exposures than those of the conventional diet consumers. The mean and median cumulative levels of NNIs (median IMIeq) were significantly lower in the organic diet group than the conventional diet group (p < 0.0001). The estimated daily intakes (EDIs) of NNIs were higher in adults than children, but less than 1% of NNI cRfDs, except for clothianidin, which exhibited a %cRfD of 1.32 in children. Compared to the conventional diet group, the 5- and 30-day organic dietary intervention showed drastic reductions in NNI EDIs. Findings from the present study give credence to organic dietary interventions as potential ameliorative strategies for NNI exposure rates in human populations.
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Affiliation(s)
- Collins Nimako
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Takahiro Ichise
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Hiroshi Hasegawa
- Fukushima Organic Agriculture Network, 964-0871, 1-511 Narita Cho, Nihonmatsu, Fukushima, Japan
| | - Osei Akoto
- Chemistry Department, Kwame Nkrumah University of Science and Technology, Ghana
| | - Nathaniel O Boadi
- Chemistry Department, Kwame Nkrumah University of Science and Technology, Ghana
| | - Kumiko Taira
- Department of Anesthesiology, Adachi Medical Center, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazutoshi Fujioka
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, United States
| | - Norikazu Isoda
- Laboratory of Microbiology, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; One Health Research Center, Hokkaido University, Hokkaido, Japan; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Hokkaido, Japan.
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8
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Vuong AM, Zhang C, Chen A. Associations of neonicotinoids with insulin and glucose homeostasis parameters in US adults: NHANES 2015-2016. CHEMOSPHERE 2022; 286:131642. [PMID: 34351280 PMCID: PMC8578312 DOI: 10.1016/j.chemosphere.2021.131642] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/13/2021] [Accepted: 07/20/2021] [Indexed: 05/19/2023]
Abstract
Neonicotinoids are replacement insecticides increasingly used for organophosphates, methylcarbamates, and pyrethroids. Experimental evidence suggests neonicotinoids may affect glucose metabolism and insulin secretion through pancreatic β cell dysfunction, oxidative stress, and inflammation. However, no epidemiologic study has investigated neonicotinoids as potential diabetogens. We examined associations between neonicotinoids with insulin and glucose homeostasis parameters among 1381 non-diabetic adults in the National Health and Nutrition Examination Survey (2015-2016). Urinary concentrations of acetamiprid, clothianidin, imidacloprid, N-desmethyl-acetamiprid, and 5-hydroxy-imidacloprid were quantified. Fasting plasma glucose, insulin, and hemoglobin A1c (HbA1c) were assessed. Insulin resistance was defined as a homeostatic model assessment of insulin resistance ≥2.5. We used weighted linear and logistic regression to estimate associations between detectable neonicotinoids with insulin and glucose homeostasis parameters compared to non-detectable neonicotinoid concentrations. Weighted detection frequencies for imidacloprid, 5-hydroxy-imidacloprid, and N-desmethyl-acetamiprid were 4.4 %, 21.5 %, and 32.8 %, respectively. Detectable imidacloprid (β = -4.7 μIU/mL, 95 % confidence interval [CI] -8.5, -0.8) and 5-hydroxy-imidacloprid (β = -2.4 μIU/mL, 95 % CI -4.6, -0.2) were associated with lower fasting plasma insulin levels. Individuals with detectable 5-hydroxy-imidacloprid had lower odds of insulin resistance (odds ratio [OR] = 0.3, 95 % CI 0.2, 0.7). We observed evidence of sexually dimorphic associations between N-desmethyl-acetamiprid with glucose (pint = 0.079) and 5-hydroxy-imidacloprid with HbA1c (pint = 0.038), with patterns suggesting positive associations in males and negative associations in females. Associations between 5-hydroxy-imidacloprid and insulin were modified by body mass index (BMI) (pint = 0.013). We additionally observed age modified associations between 5-hydyroxy-imidacloprid and glucose (pint = 0.048). Results suggest neonicotinoids may be associated with insulin and glucose homeostasis indices and call for prospective studies to examine the metabolic impact of these replacement insecticides in humans.
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Affiliation(s)
- Ann M Vuong
- Department of Epidemiology and Biostatistics, University of Nevada Las Vegas, School of Public Health, Las Vegas, NV, United States.
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Aimin Chen
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Arambegedara D, Jayasinghe S, Udagama P. Multi-pronged research on endemic chronic kidney disease of unknown etiology in Sri Lanka: a systematic review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:4893-4910. [PMID: 34799798 PMCID: PMC8604553 DOI: 10.1007/s11356-021-17316-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/27/2021] [Indexed: 05/08/2023]
Abstract
Increasing prevalence of endemic chronic kidney disease of unknown etiology (CKDu) in Sri Lanka is a major health problem since the 1990s. Despite numerous studies on CKDu, research groups have been unable to develop a comprehensive approach to mitigate the disorder, and thereby to identify research gaps. We conducted a systematic literature review of 119 publications on CKDu in Sri Lanka from Pubmed, Google Scholar, and Scopus, published until end September 2020. A higher CKDu prevalence in the working population of the North Central Province was reported with recent studies indicating patients from non-endemic regions as well. A majority were etiological studies that recorded conflicting and inconclusive evidence on CKDu etiology. Studies on clinico-pathological, diagnostic, biochemical, and molecular biological aspects of CKDu, studies analyzing CKDu symptom burden, anthropological, and behavioral impacts of CKDu, were reviewed as well. A dearth of research exists on nutritional, demographical, immunological, and microbial aspects of CKDu. The overview of the reviewed literature indicated the absence of a comprehensive plan of action to mitigate this situation. Hence, we propose the "One Health" approach with a systems dynamics model as a potential way forward to alleviate the CKDu epidemic in Sri Lanka. This enables the representation of multiple causative agents (and interactions thereof) among environmental, animal, and human systems, in concert with the "exposome" that provides the totality of exposure the individual has undergone since birth.
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Affiliation(s)
- Dinushi Arambegedara
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo, 3, Sri Lanka
| | - Saroj Jayasinghe
- Department of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, 8, Sri Lanka
| | - Preethi Udagama
- Department of Zoology and Environment Sciences, Faculty of Science, University of Colombo, Colombo, 3, Sri Lanka.
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Urinary concentrations of neonicotinoid insecticides were related to renal tubular dysfunction and neuropsychological complaints in Dry-zone of Sri Lanka. Sci Rep 2021; 11:22484. [PMID: 34795341 PMCID: PMC8602289 DOI: 10.1038/s41598-021-01732-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 11/03/2021] [Indexed: 12/04/2022] Open
Abstract
Neonicotinoids are systemic insecticides used since the 1990’s , that possess renal tubular toxicity. We conducted a field-based descriptive study in the North Central Dry-zone of Sri Lanka, where chronic kidney disease (CKD) of unknown etiology has been increasing since the 1990’s. To elucidate the relationship between renal tubular dysfunctions and urinary neonicotinoids concentrations, we collected spot urine samples from15 CKD patients, 15 family members, and 62 neighbors in 2015, analyzed two renal tubular biomarkers, Cystatin-C and L-FABP, quantified seven neonicotinoids and a metabolite N-desmethyl-acetamiprid by LC–MS/MS; and we investigated their symptoms using a questionnaire. Cystatin-C and L-FABP had a positive correlation (p < 0.001). N-Desmethyl-acetamiprid was detected in 92.4% of the urine samples, followed by dinotefuran (17.4%), thiamethoxam (17.4%), clothianidin (9.8%), thiacloprid and imidacloprid. Dinotefuran and thiacloprid have never been registered in Sri Lanka. In High Cystatin-C group (> 70 μg/gCre, n = 7), higher urinary concentration of dinotefuran (p = 0.009), and in Zero Cystatin-C group (< LOQ, n = 7), higher N-desmethyl-acetamiprid (p = 0.013), dinotefuran (p = 0.049), and thiacloprid (p = 0.035), and more complaints of chest pains, stomachache, skin eruption and diarrhea (p < 0.05) were found than in Normal Cystatin-C group (n = 78). Urinary neonicotinoids may be one of the potential risk factors for renal tubular dysfunction in this area.
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11
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Nimako C, Ikenaka Y, Akoto O, Fujioka K, Taira K, Arizono K, Kato K, Takahashi K, Nakayama SMM, Ichise T, Ishizuka M. Simultaneous quantification of imidacloprid and its metabolites in tissues of mice upon chronic low-dose administration of imidacloprid. J Chromatogr A 2021; 1652:462350. [PMID: 34198103 DOI: 10.1016/j.chroma.2021.462350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/03/2021] [Accepted: 06/08/2021] [Indexed: 01/07/2023]
Abstract
This study aimed to (i) develop a sensitive method for simultaneous detection and quantification of imidacloprid (IMI) and seven of its metabolites in tissue specimens, and to (ii) determine the biodistribution of the IMI compounds in tissues of C57BL/6J male mice; after exposure to 0.6 mg/kg bw/day of IMI (10% of no observable adverse effect level of IMI) through a powdered diet for 24 weeks. We successfully developed a method which was accurate (recoveries were ≥ 70% for most compounds), sensitive (LODs ≤ 0.47 ng/mL and LOQs ≤ 1.43 ng/mL were recorded for all detected compounds, R2 ≥ 0.99) and precise (RSDs ≤ 20%) for routine analysis of IMI and seven of its metabolites in blood and various tissue matrices. After bio-distributional analysis, IMI and five of its metabolites were detected in mice. Brain, testis, lung, kidney, inguinal white adipose tissue and gonadal white adipose tissue mainly accumulated IMI, blood and mesenteric white adipose tissue mainly accumulated IMI-olefin; liver mainly accumulated desnitro-IMI; pancreas predominately accumulated 4-hydroxy-IMI. The desnitro-dehydro-IMI and the desnitro-IMI metabolites recorded tissue-blood concentration ratios ≥ 1.0 for testis, brain, lung and kidney. The cumulative levels of the six detected IMI compounds (Σ6 IMI compounds) were found in the decreasing order: blood > testis > brain > kidney > lung > iWAT > gWAT > mWAT > liver > pancreas. Altogether, this study provided essential data needed for effective mechanistic elucidation of compound-specific adverse outcomes associated with chronic exposures to IMI in mammalian species.
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Affiliation(s)
- Collins Nimako
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa; Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Japan; One Health Research Center, Hokkaido University, Japan.
| | - Osei Akoto
- Chemistry Department, Kwame Nkrumah University of Science and Technology, Ghana
| | - Kazutoshi Fujioka
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, United States
| | - Kumiko Taira
- Department of Anesthesiology, Tokyo Women's Medical University Center east, Tokyo, Japan
| | - Koji Arizono
- Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto, Japan
| | - Keisuke Kato
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Keisuke Takahashi
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Japan
| | - Takahiro Ichise
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Japan
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Nimako C, Ikenaka Y, Akoto O, Bortey-Sam N, Ichise T, Nakayama SMM, Asante KA, Fujioka K, Taira K, Ishizuka M. Human Exposures to Neonicotinoids in Kumasi, Ghana. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2306-2318. [PMID: 33822397 DOI: 10.1002/etc.5065] [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: 02/17/2021] [Revised: 03/19/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid insecticides (NNIs) are now popular in many agricultural systems across Africa; however, the extent of human exposures to NNIs in African countries is scarcely reported. The present study evaluates neonicotinoid exposures in the consumer population of Kumasi, a cosmopolitan city in Ghana. A total of 75 human urine samples were collected from healthy volunteers (nonfarmers, aged 13-80 yr) and analyzed with a liquid chromatography electrospray ionization tandem mass spectrometry system. Seven NNIs and 3 NNI metabolites were detected in the following pattern (frequency, median concentration, maximum concentration): N-dm-acetamiprid (94.7%, 0.41 µg/L, 8.79 µg/L) > imidacloprid (70.7%, 0.15 µg/L, 211.62 µg/L) > N-(6-chloro-3-pyridylmethyl)-N-ethyl-N'-methylformamidine (62.2%, 0.43 µg/L, 53.85 µg/L) > 2-[N-(6-chloro-3-pyridylmethyl)-N-ethylamino]-2-(methylimino)acetic acid (56.8%, 0.10 µg/L, 3.53 µg/L) > clothianidin (40%, >limit of quantification [LOQ], 0.45 µg/L) > nitenpyram (18.7%, >LOQ, 0.14 µg/L) ≈ thiamethoxam (18.7%, >LOQ, 0.21 µg/L) > dinotefuran (12.0%, >LOQ, 1.01 µg/L) > acetamiprid (2.7%, >LOQ, 0.08 µg/L) ≈ thiacloprid (2.7%, >LOQ, 0.14 µg/L). Approximately 92% of the subjects were found to be exposed to multiple neonicotinoids simultaneously. The mean, median, and maximum imidacloprid equivalent of the relative potency factor of NNIs were found to be 1.6, 0.5, and 22.52, respectively. The median estimated daily intakes of acetamiprid, imidacloprid, and nitenpyram were 0.47, 1.27, and 0.02 µg/kg/d for females and 0.91, 0.66, and 0.08 µg/kg/d for males, respectively. The maximum daily intakes of all the NNIs were <1% of their chronic reference doses (cRfDs), except for imidacloprid and thiacloprid which recorded maximum daily intakes corresponding to 17.97 and 8.28% of cRfDs, respectively. To the best of our knowledge, the present study is the first biomonitoring report on neonicotinoid insecticides in Africa. Environ Toxicol Chem 2021;40:2306-2318. © 2021 SETAC.
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Affiliation(s)
- Collins Nimako
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Translational Research Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Osei Akoto
- Chemistry Department, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Nesta Bortey-Sam
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Takahiro Ichise
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kwadwo A Asante
- Council for Scientific and Industrial Research-Water Research Institute, Achimota-Accra, Ghana
| | - Kazutoshi Fujioka
- Albany College of Pharmacy and Health Sciences, Albany, New York, USA
| | - Kumiko Taira
- Department of Anesthesiology, Tokyo Women's Medical University, Medical Center East, Tokyo, Japan
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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Zhang H, Shen K, Wu R, Li Z, Wang X, Wang D, Zhan M, Xu W, Gao Y, Lu L. Occurrence and distribution of neonicotinoids and characteristic metabolites in paired urine and indoor dust from young adults: Implications for human exposure. ENVIRONMENTAL RESEARCH 2021; 199:111175. [PMID: 33964309 DOI: 10.1016/j.envres.2021.111175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid insecticides (NEOs) are widely used for pest control worldwide. The profile of NEOs in paired urine and indoor dust has not yet been reported in China. In this study, 40 paired samples (i.e., 160 urine and 40 indoor dust) were collected from university students and dormitories from Guangzhou City of China to measure the concentrations of six NEOs and their three metabolites. Target analytes were frequently detected in paired urine (81%-98%) and indoor dust (75%-95%) samples, with median concentrations ranging from 0.02 [specific gravity (SG) adjusted: 0.02] to 2.08 (SG-adjusted: 2.38) ng/mL in urine and from 0.05 to 2.74 ng/g in indoor dust. 5-Hydroxy-imidacloprid was predominant in urine, while N-desmethyl acetamiprid was predominant in indoor dust samples, accounting for 56% and 37%, respectively. 1-Methyl-3-(tetrahydro-3-furylmethyl) urea, a dinotefuran degradate, was measured for the first time in indoor dust, with the median level of 1.02 ng/g. Significant gender-related differences (p < 0.05) in the urinary concentrations of most NEOs were found. We calculated the estimated daily intake (EDI) of target compounds from urine and indoor measurements. The EDIs of target analytes varied among all urine and indoor dust samples, with median values ranging from 0.51 (SG-adjusted: 0.56) to 51.6 (SG-adjusted: 52.8) ng/kg bw/day and from 0.04 to 2.10 pg/kg bw/day, respectively. Moreover, the median EDIsurine of most target analytes in females were significantly higher than (p < 0.05) those in males. The median EDIsdust of target compounds in dust from female dormitories were slightly higher than that in dust from male dormitories. These findings indicated that females were more exposed to NEO than males. Thus, the potential health risks of exposure to NEOs and their metabolites in female adults should be addressed in future studies. To our knowledge, this study is the first to report the profiles of NEOs and their metabolites in paired urine and indoor dust samples from young adults in China.
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Affiliation(s)
- Hua Zhang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Kui Shen
- Department of Orthopedics, First Affiliated Hospital, Jinan University, Guangzhou, 510632, PR China
| | - Ruan Wu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Zhiyong Li
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Xiao Wang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Desheng Wang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR China
| | - Meixiao Zhan
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China
| | - Weiguo Xu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China.
| | - Yunfei Gao
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China.
| | - Ligong Lu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China.
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14
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Xu M, Zhang Z, Li Z, Kan S, Liu Z, Wang D, Liu Q, Zhang H. Profiles of neonicotinoid insecticides and characteristic metabolites in paired urine and blood samples: Partitioning between urine and blood and implications for human exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145582. [PMID: 33582343 DOI: 10.1016/j.scitotenv.2021.145582] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/14/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid insecticides (NEOs) are widely used for pest control worldwide. However, only a few studies have analyzed NEOs and their metabolites in blood samples, and no study has measured the concentrations of NEOs and their metabolites in paired urine and blood samples. In this study, six NEOs and three characteristic metabolites were detected in 196 paired urine and blood samples collected from young adults from China. The NEOs and their metabolites were widely detected in paired urine (67%-91%) and blood (64%-97%) samples, and the median levels ranged within 0.01-1.15 ng/mL in urine and 0.08-0.80 ng/mL in blood. Olefin-imidacloprid (Of-IMI) and 1-methyl-3-(tetrahydro-3-furylmethyl) urea (UF) were the most abundant target compounds in the urine (32.4%) and blood (26.4%) samples, respectively. Gender-related differences were observed in the concentrations of most NEOs and their metabolites in the urine and blood samples. The partitioning of target analytes between blood and urine (NEOs-B/NEOs-U ratios) was also calculated in this study. The B/U ratios of most NEOs and their metabolites were below 1, and positive correlations were observed between urine and blood in most levels of NEOs and their metabolites. This finding indicates that urinary levels are good predictors of human exposure to NEOs and their metabolites. The estimated daily intake (EDI) and the imidacloprid-equivalent (IMIeq) levels of NEOs and their metabolites in 196 young adults were also determined. The median EDI values (ng/kg bw/day) of ΣNEOs (sum of NEOs and their metabolites) and IMIeq in females (194.9 and 458.2) were slightly higher than (p > 0.05) those in males (157.1 and 439.7). This finding shows young adults are extensively exposed to NEOs and their metabolites. To our knowledge, this study is the first to report about NEOs and their metabolites in paired samples of urine and blood in China.
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Affiliation(s)
- Miaomiao Xu
- The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Zhanpeng Zhang
- Department of Dermatology, The first Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Zhiyong Li
- The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Shunyan Kan
- The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, Guangdong 510632, PR China
| | - Zhaoxiang Liu
- Xiangtan Central Hospital, Xiangtan, Hunan 411100, PR China.
| | - Desheng Wang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, Guangdong 510275, PR China
| | - Qihui Liu
- The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, Guangdong 510632, PR China.
| | - Hua Zhang
- The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, Guangdong 510632, PR China.
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NIMAKO C, IKENAKA Y, OKAMATSU-OGURA Y, BARIUAN JV, KOBAYASHI A, YAMAZAKI R, TAIRA K, HOSHI N, HIRANO T, NAKAYAMA SMM, ISHIZUKA M. Chronic low-dose exposure to imidacloprid potentiates high fat diet-mediated liver steatosis in C57BL/6J male mice. J Vet Med Sci 2021; 83:487-500. [PMID: 33487623 PMCID: PMC8025430 DOI: 10.1292/jvms.20-0479] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 01/08/2021] [Indexed: 12/21/2022] Open
Abstract
Hepatic steatosis is known to precede a continuum of events that lead to hepatic metabolic dysfunction, inflammation and carcinogenesis. Recently, studies have linked xenobiotic exposures to hepatic steatogenesis and its associated metabolic disorders; however, the underlying mechanisms remain elusive. This study aimed to elucidate the mechanistic role of imidacloprid in the prevalence of high fat diet (HFD)-induced liver steatosis, using a C57BL/6J mice model. Mice (3 weeks old) were fed with HFD and treated with 0.6 mg/kg bw/day (one-tenth of the NOAEL) of imidacloprid through water or diet, for 24 weeks. In a controlled group, mice were fed with only HFD. At the end of the study, imidacloprid treatment significantly potentiated HFD-induced body weight gain in mice. Also, imidacloprid increased the liver weights of mice, with complimentary reductions in mesenteric and gonadal white adipose tissue weights. Histopathological analysis of liver revealed a drastic steatosis in imidacloprid treated mice. Following a real-time qPCR analysis, imidacloprid upregulated transcriptions of hepatic fatty acid biosynthesis-related transcription factors and genes. Imidacloprid also induced hepatic expression of the gene encoding pregnane X receptor; but had no significant effect on hepatic expressions of liver X receptor and aryl hydrocarbon receptor. The imidacloprid treatment further enhanced serum alanine aminotransferase levels but downregulated hepatic antioxidant mRNA expressions. Ultimately, this study suggested an imidacloprid-potentiation effects on prevalence of HFD-induced liver steatosis via transcriptional modulations of the hepatic FA biosynthesis pathway.
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Affiliation(s)
- Collins NIMAKO
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University,
Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Yoshinori IKENAKA
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University,
Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
- Water Research Group, Unit for Environmental Sciences and Management, North-West University, 11 Hoffman Street, Potchefstroom
2531, South Africa
| | - Yuko OKAMATSU-OGURA
- Laboratory of Biochemistry, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18,
Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Jussiaea V. BARIUAN
- Laboratory of Biochemistry, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita 18,
Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Atsushi KOBAYASHI
- Laboratory of Comparative Pathology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita
18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Ryo YAMAZAKI
- Laboratory of Comparative Pathology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Kita
18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Kumiko TAIRA
- Department of Anesthesiology, Tokyo Women’s Medical University Center East, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666,
Japan
| | - Nobuhiko HOSHI
- Department of Animal Science, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, Hyogo
657-8501, Japan
| | - Tetsushi HIRANO
- Division of Drug and Structure Research, Life Science Research Center, University of Toyama, Sugitani 2630, Toyama 930-0194,
Japan
| | - Shouta M. M. NAKAYAMA
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University,
Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
| | - Mayumi ISHIZUKA
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University,
Kita 18, Nishi 9, Kita-ku, Sapporo, Hokkaido 060-0818, Japan
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16
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Zhang H, Zhang N, Zhou W, Zeng X, Wang X, Zhan M, Xu W, Huang Y, Lu L, Li Z, Gao Y. Profiles of neonicotinoid insecticides and their metabolites in paired saliva and periodontal blood samples in human from South China: Association with oxidative stress markers. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 212:112001. [PMID: 33545407 DOI: 10.1016/j.ecoenv.2021.112001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/19/2021] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid insecticides (NEOs) are widely used around the world. The distribution of NEOs in paired saliva and periodontal blood samples was not previously documented in China. In this study, the concentrations of six NEOs and three corresponding metabolites were measured in 188 paired saliva and periodontal blood samples collected from South China. NEOs and their metabolites were frequently detected (68-94%) in paired saliva and periodontal blood, with median levels of 0.01-0.99 ng/mL. 1-Methyl-3-(tetrahydro-3-furylmethyl) urea was the most predominant NEO in paired saliva (39%) and periodontal blood (42%). Gender-related differences in NEOs and their metabolite concentrations were found: males showed lower levels than females. We calculated the concentration ratios between saliva and periodontal blood (S/PB ratios), and found that the median S/PB ratios of NEO and their metabolites were higher than 1, indicating that NEOs and their metabolites were easily excreted via saliva. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) was measured in paired saliva and periodontal blood as a marker of oxidative stress. 8-OHdG concentrations in saliva and periodontal blood were significantly and positively correlated (p < 0.05) with the concentrations of most NEOs and their metabolites in saliva and periodontal blood samples. These findings indicated that exposure to NEOs and their metabolites is associated with oxidative stress. This study is the first to report NEOs and their metabolites in paired saliva and periodontal blood samples collected from South China.
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Affiliation(s)
- Hua Zhang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Nan Zhang
- School of Stomatology, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Wei Zhou
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Xujia Zeng
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Xiao Wang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Meixiao Zhan
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China
| | - Weiguo Xu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China
| | - Yue Huang
- School of Stomatology, Jinan University, Guangzhou 510632, Guangdong, PR China
| | - Ligong Lu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China.
| | - Zhizhong Li
- Department of Orthopedics, First Affiliated Hospital, Jinan University, Guangzhou 510632, Guangdong, PR China; The Fifth Affiliated Hospital (Heyuan Shenhe People's Hospital), Jinan University, Heyuan 517000, Guangdong, PR China.
| | - Yunfei Gao
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou 510632, Guangdong, PR China.
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Wang H, Yang D, Fang H, Han M, Tang C, Wu J, Chen Y, Jiang Q. Predictors, sources, and health risk of exposure to neonicotinoids in Chinese school children: A biomonitoring-based study. ENVIRONMENT INTERNATIONAL 2020; 143:105918. [PMID: 32673906 DOI: 10.1016/j.envint.2020.105918] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/29/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Recent studies have suggested an extensive exposure to neonicotinoids in human, but the information on predictors, sources, and health risk remains limited in children. OBJECTIVE To explore the predictors, sources, and health risk for exposure of Chinese school children to neonicotinoids by biomonitoring method. METHODS In 2019, 309 school children aged 7-11 years were selected from a dynamic cohort of children established in Shanghai, East China. Eight neonicotinoids and four metabolites were determined in first morning urine. After detailed information on demographic and socioeconomic indices, intake of drinking water, food consumption, and anthropometric measurements was collected, the predictors and sources of exposure to neonicotinoids were explored by binary and ordinal logistic regression models. Health risk was assessed by the hazard quotient (HQ) and hazard index (HI) based on estimated daily exposure dose. RESULTS Six neonicotinoids (thiamethoxam, clothianidin, imidacloprid, acetamiprid, nitenpyram, and dinotefuran) and three metabolites (N-desmethyl-thiamethoxam, N-desmethyl-clothianidin, and N-desmethyl-acetamiprid) were detected in 81.3% of urine samples. Children in nuclear family or girls had a higher detection frequency of thiamethoxam. N-desmethyl-acetamiprid was more likely to be detected in children who were older, physically active, or obese. Parents' occupation was heterogeneously associated with the detection of thiamethoxam and clothianidin. Thiamethoxam and clothianidin were more likely to be detected in children consuming more fresh vegetables in all or its specific items of cabbage, nori, and kelp. N-desmethyl-acetamiprid was more likely to be detected in children who drank more tap water. The maximum HQ and HI were 0.3522 and 0.5187, respectively, and 2.8% of children had a HI between 0.1 and 1. CONCLUSION Predictors for the exposure of children to neonicotinoids included demographic and socioeconomic factors, physical exercise, and relative body weight. Tap water and fresh vegetables were potential sources. A low risk was posed on children's health by the neonicotinoids.
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Affiliation(s)
- Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Dongjian Yang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Hongji Fang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Minghui Han
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Jingui Wu
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1G 5Z3, Canada.
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education/School of Public Health, Fudan University, Shanghai 200032, China.
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Li AJ, Martinez-Moral MP, Kannan K. Variability in urinary neonicotinoid concentrations in single-spot and first-morning void and its association with oxidative stress markers. ENVIRONMENT INTERNATIONAL 2020; 135:105415. [PMID: 31869729 PMCID: PMC6957733 DOI: 10.1016/j.envint.2019.105415] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 05/03/2023]
Abstract
Human exposure to neonicotinoid insecticides (hereafter "neonics") is a concern. Spot urine samples have been widely used in the assessment of exposure to neonics. Urinary concentrations, however, can vary greatly over time due to variable exposure, potentially leading to exposure misclassification. In this study, within- and between-individual variability of urinary concentrations of 13 neonics and their metabolites collected consecutively for up to 44 days from 19 individuals were examined. We also measured seven oxidative stress biomarkers (OSBs) in repeated urine samples to elucidate their relationship with neonic exposure by mixed regression models. Intraclass correlation coefficients (ICCs, a ratio of between-individual variance to total variance) were used to assess the reproducibility of neonic/metabolite concentrations. Sensitivity and specificity were used to evaluate how well spot urine samples determined an individual's average exposure over 44 days. A fair to good reproducibility was observed for N-desmethyl-acetamiprid (ICC = 0.42), whereas thiamethoxam, imidacloprid, clothianidin, imidaclothiz, 6-chloronicotinic acid, and sulfoxaflor showed poor reproducibility (ICC = 0.02-0.37). Use of single-spot urine samples to classify high (top 33%) exposure showed higher specificities (0.68-0.92) than sensitivities (0.32-0.88). The minimum number of specimens (k) required to estimate participant-specific mean for neonic exposures within 20% of the "true" values ranged from 16 to 172. Significant positive correlations were found between some of neonic and OSB concentrations. The high variability found in the urinary concentrations of most neonics/metabolites suggests that a single measurement can result in exposure misclassification.
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Affiliation(s)
- Adela Jing Li
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States
| | - Maria-Pilar Martinez-Moral
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, and Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Empire State Plaza, P.O. Box 509, Albany, NY 12201-0509, United States; Biochemistry Department, Faculty of Science and Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
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Zhang T, Song S, Bai X, He Y, Zhang B, Gui M, Kannan K, Lu S, Huang Y, Sun H. A nationwide survey of urinary concentrations of neonicotinoid insecticides in China. ENVIRONMENT INTERNATIONAL 2019; 132:105114. [PMID: 31465954 DOI: 10.1016/j.envint.2019.105114] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 08/18/2019] [Accepted: 08/20/2019] [Indexed: 05/19/2023]
Abstract
Neonicotinoid insecticides (NEOs) are emerging pesticides of concern due to their potential toxicity to non-target species (e.g., bees, fish and birds). China is an important producer and user of NEOs in the world. Studies on human exposure to NEOs in China are very limited. In this study, urinary levels of six NEOs, namely acetamiprid (ACE), clothianidin (CLO), dinotefuran (DIN), imidacloprid (IMI), thiacloprid (THD), and thiamethoxam (THM) were determined in 324 individuals from 13 cities in China. Across all sampling locations, total NEO concentrations (ΣNEOs; sum of six NEOs) were dominated by CLO (median: 0.24 ng/mL), IMI (0.21 ng/mL), THM (0.15 ng/mL) and DIN (0.14 ng/mL) collectively accounting for 98% of the concentrations. Urinary concentrations of each NEO varied depending on the sampling location with the median values ranged from 0.057 to 1.2 ng/mL for CLO, from 0.036 to 0.83 ng/mL for DIN, from 0.069 to 3.2 ng/mL for IMI, and from 0.062 to 0.45 ng/mL for THM. Sex-related differences in IMI, ACE and ΣNEOs concentrations were observed with males presenting significantly higher urinary levels than did females. All six NEOs were significantly positively correlated (r = 0.135 to 0.661, p < 0.05) with each other, suggesting that the exposure sources of NEOs are common or related. On the basis of urinary IMI levels, we calculated the median daily intake (DI; mean and range) of IMI to be 1.6 (4.1, <0.02-55) μg/day, or 0.034 (0.11, <0.0003-2.1) μg/kg bw/day. To our knowledge, this is the first study to document the ubiquitous occurrence of and human exposure to NEOs in China.
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Affiliation(s)
- Tao Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Shiming Song
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xueyuan Bai
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yuan He
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Bo Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Mingwei Gui
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Kurunthachalam Kannan
- Wadsworth Center, New York State Department of Health, Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Albany, NY 12201, USA
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Guangzhou 510006, China.
| | - Yanying Huang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
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Tao Y, Phung D, Dong F, Xu J, Liu X, Wu X, Liu Q, He M, Pan X, Li R, Zheng Y. Urinary monitoring of neonicotinoid imidacloprid exposure to pesticide applicators. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 669:721-728. [PMID: 30893627 DOI: 10.1016/j.scitotenv.2019.03.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 05/20/2023]
Abstract
Neonicotinoid pesticides have recently drawn attention worldwide owing to their potential adverse effects on non-target organisms and ecosystems. Exposure to imidacloprid, the most widely used neonicotinoid insecticide, is of particular concern among rural populations because of its ubiquitous use in agriculture. Hence, biological monitoring of urinary imidacloprid and its major metabolite 6-chloronicotinic acid (6-CNA) was performed using Polar Enhanced Polymer solid-phase extraction by LC-MS/MS with mean recoveries of 78.3-109.8% and limits of quantitation at 0.029-0.038 ng/mL. Imidacloprid was detected in 100% of urine samples from rural applicators at concentrations of 0.21-8.91 ng/mL (0.06-9.60 μg/g creatinine) and 0.11-24.58 ng/mL (0.66-57.40 μg/g creatinine) before and after pesticide application, respectively. Significant increase in urine concentration (3.52- to 3.77-fold) of imidacloprid and 6-CNA was observed after local imidacloprid field application (p ≤ 0.001). The estimated absorbed daily dose (ADD) for imidacloprid was 0.52-248.05 μg/kg/d, indicating that attention should be paid to potential health risks for applicators because of increased imidacloprid exposure at level of significance (p < 0.05). This study is the first to report ADD estimation for imidacloprid, thereby providing an important reference for further human health risk evaluation.
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Affiliation(s)
- Yan Tao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Dung Phung
- Centre for Environment and Population Health, Griffith University, 25 Owenia Street, Algester, QLD 4115, Queensland, Australia
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Qianyu Liu
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, PR China
| | - Min He
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China
| | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Runan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
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Zhang Q, Li Z, Chang CH, Lou JL, Zhao MR, Lu C. Potential human exposures to neonicotinoid insecticides: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:71-81. [PMID: 29414376 DOI: 10.1016/j.envpol.2017.12.101] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 11/21/2017] [Accepted: 12/25/2017] [Indexed: 05/19/2023]
Abstract
Due to their systemic character and high efficacy to insect controls, neonicotinoid insecticides (neonics) have been widely used in global agriculture since its introduction in early 1990. Recent studies have indicated that neonics may be ubiquitous, have longer biological half-lives in the environment once applied, and therefore implicitly suggested the increasing probability for human exposure to neonics. Despite of neonics' persistent characters and widespread uses, scientific literature in regard of pathways in which human exposure could occur is relatively meager. In this review, we summarized results from peer-reviewed articles published prior to 2017 that address potential human exposures through ingestion and inhalation, as well as results from human biomonitoring studies. In addition, we proposed the use of relative potency factor approach in order to facilitate the assessment of concurrent exposure to a mixture of neonics with similar chemical structures and toxicological endpoints. We believe that the scientific information that we presented in this review will aid to future assessment of total neonic exposure and subsequently human health risk characterization.
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Affiliation(s)
- Q Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Providence, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, People's Republic of China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - Z Li
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Providence, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, People's Republic of China; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - C H Chang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA
| | - J L Lou
- Institute of Occupational Diseases, Zhejiang Academy of Medical Sciences, Hangzhou, People's Republic of China
| | - M R Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Providence, College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang, People's Republic of China
| | - C Lu
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston MA, USA; College of Resources and Environment, Southwest University, Chongqing, 400715, People's Republic of China.
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Arsenic and Cadmium Contamination in Water, Sediments and Fish is a Consequence of Paddy Cultivation: Evidence of River Pollution in Sri Lanka. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.als.2016.11.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Rajapakse S, Shivanthan MC, Selvarajah M. Chronic kidney disease of unknown etiology in Sri Lanka. INTERNATIONAL JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH 2016; 22:259-264. [PMID: 27399161 DOI: 10.1080/10773525.2016.1203097] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
INTRODUCTION In the last two decades, chronic kidney disease of unknown etiology (CKDu) has emerged as a significant contributor to the burden of chronic kidney disease (CKD) in rural Sri Lanka. It is characterized by the absence of identified causes for CKD. The prevalence of CKDu is 15.1-22.9% in some Sri Lankan districts, and previous research has found an association with farming occupations. METHODS A systematic literature review in Pubmed, Embase, Scopus, and Lilacs databases identified 46 eligible peer-reviewed articles and one conference abstract. RESULTS Geographical mapping indicates a relationship between CKDu and agricultural irrigation water sources. Health mapping studies, human biological studies, and environment-based studies have explored possible causative agents. Most studies focused on likely causative agents related to agricultural practices, geographical distribution based on the prevalence and incidence of CKDu, and contaminants identified in drinking water. Nonetheless, the link between agrochemicals or heavy metals and CKDu remains to be established. No definitive cause for CKDu has been identified. DISCUSSION Evidence to date suggests that the disease is related to one or more environmental agents, however pinpointing a definite cause for CKDu is challenging. It is plausible that CKDu is multifactorial. No specific guidelines or recommendations exist for treatment of CKDu, and standard management protocols for CKD apply. Changes in agricultural practices, provision of safe drinking water, and occupational safety precautions are recommended by the World Health Organization.
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Affiliation(s)
- Senaka Rajapakse
- a Faculty of Medicine, Department of Clinical Medicine , University of Colombo , Colombo , Sri Lanka
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