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Üstay Ö, Elbasan O, Erel P, Bulut NS, Yorguner N. Endocrine-disrupting effects of bisphenol-A, thiamethoxam, and fipronil in hormone-naïve transmen compared to cis-women. Hormones (Athens) 2024; 23:375-383. [PMID: 38990460 DOI: 10.1007/s42000-024-00574-7] [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: 09/17/2023] [Accepted: 06/11/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND Current evidence suggests that the etiology of gender dysphoria (GD) is multifactorial: this, however, remains unclear. Endocrine-disrupting chemicals (EDCs) are one of the etiological hypotheses. OBJECTIVES In this study, we aimed to evaluate the urinary levels of bisphenol A (BPA), thiamethoxam, and fipronil in hormone-naïve transmen compared with case-matched cis-women as well as the relation between sex hormone levels and EDCs. METHODS Drug-naïve transmen diagnosed with GD and who were referred from the psychiatry outpatient clinic to the outpatient clinic of the Department of Endocrinology, Marmara University Hospital, were included in the study. These individuals were assessed for eligibility; 38 drug-naïve transmen and 22 cis-women were recruited as the control group. After anthropometric evaluation laboratory tests for FSH, LH, total testosterone, and estradiol were carried out, spot urine samples were collected to evaluate the urine metabolic excretion of BPA, thiamethoxam, and fipronil. RESULTS We found that androgens, total testosterone, androstenedione, and DHEAS levels were significantly higher in transmen than in cis-women. Thiamethoxam was considerably higher in cis-women than in transmen, whereas fipronil and BPA levels were similar in both groups. A negative correlation was found between thiamethoxam and testosterone and between thiamethoxam and BPA levels. CONCLUSION The available data suggest that the EDCs that we are most exposed to in our lives are not the only factor in GD development. Even transmen who have not taken hormone replacement have high testosterone levels; however, the mechanism has not as yet been elucidated. The challenge is to determine whether this is a factor leading to GD or a condition that develops in common with GD.
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Affiliation(s)
- Özlem Üstay
- Department of Endocrinology and Metabolism, School of Medicine, Marmara University, Istanbul, Turkey
| | - Onur Elbasan
- Clinics of Endocrinology and Metabolism, Sinop Ataturk State Hospital, Sinop, Turkey.
| | - Pınar Erel
- Department of Internal Medicine, Koç University, Istanbul, Turkey
| | - Necati Serkut Bulut
- Department of Psychiatry, School of Medicine, Marmara University, Istanbul, Turkey
| | - Neşe Yorguner
- Department of Psychiatry, School of Medicine, Marmara University, Istanbul, Turkey
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Wang Y, Wu W, Bravo MA, Liu S, Xi X, Zhou Y, Zhang Q, Liu Q. Prepubertal exposure to polycyclic aromatic hydrocarbons are associated with early pubertal development onset in boys: A longitudinal study. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134160. [PMID: 38574665 DOI: 10.1016/j.jhazmat.2024.134160] [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: 11/28/2023] [Revised: 02/23/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVE To investigate the effects of polycyclic aromatic hydrocarbons(PAHs) on puberty in boys. METHODS 695 subjects were selected from four primary schools in Chongqing, China. 675 urine samples from these boys were collected four PAH metabolites: 1-hydroxypyrene, 2-hydroxynaphthoic, 2-hydroxyfluorene, and 9-hydroxyphenanthrene. Pubertal development of 695 boys was assessed at follow-up visits starting in December 2015 and occurring every six months thereafter until now, data used in this article ending in June 2021. A total of 12 follow-up visits were performed. Cox proportional hazards regression models were used to analyze the relationship between PAH metabolite concentrations and indicators of pubertal timing. RESULTS The mean age at puberty onset of testicular volume, facial hair, pubic hair, first ejaculation, and axillary hair in boys was 11.66, 12.43, 12.51, 12.72 and 13.70 years, respectively. Cox proportional hazards regression models showed that boys with moderate level of 1-OHPyr exposure was associated with earlier testicular development (hazard ratio [HR] = 1.276, 95% confidence interval [CI]: 1.006-1.619), with moderate level of 2-OHNap were at higher risk of early testicular development (HR = 1.273, 95% CI: 1.002-1.617) and early axillary hair development (HR = 1.355, 95% CI: 1.040-1.764), with moderate level of 2-OHFlu was associated with earlier pubic hair development (HR = 1.256, 95% CI: 1.001-1.577), with high level of 9-OHPhe were at higher risk of early fisrt ejaculation (HR = 1.333, 95% CI: 1.005-1.767) and early facial hair development (HR = 1.393, 95% CI: 1.059-1.831). CONCLUSION Prepubertal exposure to PAHs may be associated with earlier pubertal development in boys.
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Affiliation(s)
- Yujie Wang
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Wenyi Wu
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Mercedes A Bravo
- Duke Global Health Institute, Duke University, Durham, NC, United States
| | - Shudan Liu
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Xuan Xi
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Yuanke Zhou
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Qin Zhang
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China
| | - Qin Liu
- Research Center for Environment and Human Health, Research Center for Medicine and Social Development, School of Public Health, Chongqing Medical University, Chongqing 401331, PR China.
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Zhang B, Wang Z, Zhang J, Dai Y, Ding J, Guo J, Chen Y, Lu D, Wu C, Zhou Z. Simultaneous determination of twelve neonicotinoids and six metabolites in human urine with isotope-dilution UPLC-Q-Orbitrap HRMS. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1237:124084. [PMID: 38513429 DOI: 10.1016/j.jchromb.2024.124084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/03/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024]
Abstract
The extensive global use of neonicotinoid insecticides (NNIs) has led to widespread human exposure, necessitating the development of effective methods for large-scale biomonitoring. However, current methods are inadequate in simultaneously and accurately detecting various NNIs or their metabolites (m-NNIs). In this study, we aimed to establish a robust method using solid-phase extraction (SPE)-ultra high performance liquid chromatography tandem Q-Orbitrap high resolution mass spectrometry (UPLC-Q-Orbitrap HRMS) for the simultaneous determination of 12 NNIs and 6 m-NNIs in human urine. Samples were prepared using Oasis HLB 96 well plate with Isopropanol: methanol (7:3, v/v) as the elution solvent. The target compounds were separated using the Accucore RP-MS column and subsequently analyzed under parallel reaction monitoring mode. NTN32692 (m/z = 255.06433) was confirmed to be the specific metabolite of cycloxaprid for the further detection. Satisfactory recoveries (81.6-122.4 %) of the NNIs and m-NNIs were observed, with intra- (n = 3) and inter-day (n = 9) relative standard deviation (RSD) ranging from 0.8 % to 13.7 % and from 1.1 % to 18.6 %, respectively. Good linearity (R2 > 0.99) was achieved for all analytes. The limits of detection (LODs) for all target analytes ranged from 0.01 ng/mL to 0.65 ng/mL. This method was applied to urine samples collected from 10 children recruited from an agricultural area in China. Our study provides an effective method to identify and assess human exposure to NNIs and their metabolites.
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Affiliation(s)
- Boya Zhang
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Zheng Wang
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Jiming Zhang
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China.
| | - Yiming Dai
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Jiayun Ding
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Jianqiu Guo
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Yuhang Chen
- Shanghai Municipal Center for Disease Control and Prevention, No. 1380 Zhongshan West Road, Shanghai 200336, China
| | - Dasheng Lu
- Shanghai Municipal Center for Disease Control and Prevention, No. 1380 Zhongshan West Road, Shanghai 200336, China
| | - Chunhua Wu
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China
| | - Zhijun Zhou
- School of Public Health/MOE Key Laboratory of Public Health Safety, Fudan University, No.130 Dong'an Road, Shanghai 200032, China.
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Rymuszka A, Sieroslawska A. Comparative evaluation of neonicotinoids and their metabolites-induced oxidative stress in carp primary leukocytes and CLC cells. Sci Rep 2024; 14:8291. [PMID: 38594566 PMCID: PMC11004018 DOI: 10.1038/s41598-024-59067-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/06/2024] [Indexed: 04/11/2024] Open
Abstract
Neonicotinoids (NEOs) have been designed to act selectively on insect nicotinic acetylcholine receptors (nAChRs). However, nAChRs are also expressed in vertebrate immune cells, so NEOs may interfere with the immune system in exposed non-target animals. The present study shows that NEOs: imidacloprid and thiacloprid, and their main metabolites: desnitro-imidacloprid and thiacloprid amide, at sub-micromolar concentrations ranging from 2.25 to 20 μM, affect the immune cells of fish. This was found both in primary cultures of leukocytes isolated from the carp head kidney and in the continuous adherent carp monocyte/macrophage cell line. Moreover, the results revealed that the studied pesticides and metabolites generate oxidative stress in carp immune cells and that this is one of the most important mechanisms of neonicotinoid immunotoxicity. Significant increases were observed in the formation of ROS and malondialdehyde (MDA). The antioxidant status alteration was linked with decrease in antioxidant enzyme activity: superoxide dismutase (SOD), catalase (CAT), and non-enzymatic antioxidant glutathione (GSH). Importantly, the metabolites: desnitro-imidacloprid and thiacloprid amide showed significantly higher cytotoxicity towards fish leukocytes than their parent compounds, imidacloprid and thiacloprid, which emphasizes the importance of including intermediate metabolites in toxicology studies.
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Affiliation(s)
- Anna Rymuszka
- Department of Animal Physiology and Toxicology, Faculty of Medicine, The John Paul II Catholic University of Lublin, 1I Konstantynów Str., 20-708, Lublin, Poland.
| | - Anna Sieroslawska
- Department of Animal Physiology and Toxicology, Faculty of Medicine, The John Paul II Catholic University of Lublin, 1I Konstantynów Str., 20-708, Lublin, Poland
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Benchikh I, Ziani K, Gonzalez Mateos A, Khaled BM. Non-acute exposure of neonicotinoids, health risk assessment, and evidence integration: a systematic review. Crit Rev Toxicol 2024; 54:194-213. [PMID: 38470098 DOI: 10.1080/10408444.2024.2310593] [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: 06/15/2023] [Accepted: 01/18/2024] [Indexed: 03/13/2024]
Abstract
Neonicotinoid pesticides are utilized against an extensive range of insects. A growing body of evidence supports that these neuro-active insecticides are classified as toxicants in invertebrates. However, there is limited published data regarding their toxicity in vertebrates and mammals. the current systematic review is focused on the up-to-date knowledge available for several neonicotinoid pesticides and their non-acute toxicity on rodents and human physiology. Oral lethal dose 50 (LD50) of seven neonicotinoids (i.e. imidacloprid, acetamiprid, clothianidin, dinotefuran, thiamethoxam, thiacloprid, and nitenpyram) was initially identified. Subsequently, a screening of the literature was conducted to collect information about non-acute exposure to these insecticides. 99 studies were included and assessed for their risk of bias and level of evidence according to the Office of Health and Translation (OHAT) framework. All the 99 included papers indicate evidence of reproductive toxicity, hepatotoxicity, nephrotoxicity, neurotoxicity, immunotoxicity, and oxidative stress induction with a high level of evidence in the health effect of rodents and a moderate level of evidence for human health. The most studied type of these insecticides among 99 papers was imidacloprid (55 papers), followed by acetamiprid (22 papers), clothianidin (21 papers), and thiacloprid (11 papers). While 10 of 99 papers assessed the relationship between clothianidin, thiamethoxam, dinotefuran, and nitenpyram, showing evidence of liver injury, dysfunctions of oxidative stress markers in the reproductive system, and intestinal toxicity. This systematic review provides a comprehensive overview of the potential risks caused by neonicotinoid insecticides to humans and rodents with salient health effects. However, further research is needed to better emphasize and understand the patho-physiological mechanisms of these insecticides, taking into account various factors that can influence their toxicity.
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Affiliation(s)
- Imen Benchikh
- Laboratory of Applied Hydrology and Environment, Department of Biology, Faculty of Natural Sciences and Life, Belhadj Bouchaib University, Ain Témouchent, Algeria
- Laboratoire de Nutrition, Pathologie, Agro-Biotechnologie et Santé (Lab-NuPABS), Department of Biology, Faculty of Natural Sciences and Life, Djillali Liabès University, Sidi-Bel-Abbès, Algeria
| | - Kaddour Ziani
- Laboratory of Biotoxicology, Pharmacognosy and Biological Valorization of Plants, Department of Biology, University of Saida-Dr. Taher Moulay, Saida, Algeria
| | - Antonio Gonzalez Mateos
- Department of Physiology, Cell Biology and Communication Research Group, University of Extremadura, Caceres, Spain
| | - Boumediène Méghit Khaled
- Laboratoire de Nutrition, Pathologie, Agro-Biotechnologie et Santé (Lab-NuPABS), Department of Biology, Faculty of Natural Sciences and Life, Djillali Liabès University, Sidi-Bel-Abbès, Algeria
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Yang Z, Wang Y, Tang C, Han M, Wang Y, Zhao K, Liu J, Tian J, Wang H, Chen Y, Jiang Q. Urinary neonicotinoids and metabolites are associated with obesity risk in Chinese school children. ENVIRONMENT INTERNATIONAL 2024; 183:108366. [PMID: 38061247 DOI: 10.1016/j.envint.2023.108366] [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: 06/26/2023] [Revised: 11/06/2023] [Accepted: 12/01/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Neonicotinoids are the most widely used insecticides. Laboratory studies have suggested that neonicotinoids are one potential obesogen, but relevant data are limited in human. OBJECTIVE To examine the association between exposure to neonicotinoids and childhood obesity. METHODS We investigated 442 children in Shanghai, East China and measured eight neonicotinoids (thiamethoxam, clothianidin, acetamiprid, imidacloprid, thiacloprid, nitenpyram, dinotefuran, and imidaclothiz) and four metabolites (N-desmethyl-thiamethoxam, N-desmethyl-clothianidin, N-desmethyl-acetamiprid, and 5-OH-imidacloprid) in urine. Body mass index (BMI) and waist circumference (WC) were used to identify general overweight/obesity and central obesity, respectively. Linear and logistic regression models based on generalized estimating equations were used to investigate the associations of urinary neonicotinoids and metabolites with BMI z-score, WC z-score, general overweight/obesity, and central obesity. RESULTS Children with a positive detection of clothianidin and its metabolite had a marginally higher BMI z-score (regression coefficient (β): 0.08, 95% confidence interval (95% CI): 0.01, 0.14) after adjusted for relevant covariates. After creatinine-adjusted concentration was trichotomized, compared to children with a negative detection, children in the high urinary concentration of acetamiprid and its metabolite had a low BMI z-score (β: -0.19, 95%CI: -0.30, -0.08), children in the medium urinary concentration of neonicotinoids and metabolites other than thiamethoxam, clothianidin, acetamiprid, and their metabolites had a marginally higher BMI z-score (β: 0.25, 95%CI: 0.03, 0.46), a higher WC z-score (β: 0.24, 95%CI: 0.14, 0.33), and a higher odds of central obesity (odds ratio (OR): 2.16, 95% CI: 1.28, 3.63), and children in the medium urinary concentration of all neonicotinoids and metabolites had a higher odds of central obesity (OR: 1.55, 95%CI: 1.04, 2.33). Some associations showed sex- and age- related differences. CONCLUSION Urinary neonicotinoids and metabolites were found to be differently associated with obesity-related indexes, which suggested that exposure to neonicotinoids might have a mixed effect on childhood obesity.
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Affiliation(s)
- Zichen Yang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Yuanping Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Chuanxi Tang
- Changning District Center for Disease Control and Prevention, Changning District, Shanghai 200051, China
| | - Minghui Han
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Yi Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Ke Zhao
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Jiaqi Liu
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Jiacheng Tian
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Hexing Wang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China.
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1G5Z3, Canada.
| | - Qingwu Jiang
- School of Public Health/Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
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7
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Sun J, He P, Wang R, Zhang ZY, Dai YQ, Li XY, Duan SY, Liu CP, Hu H, Wang GJ, Zhang YP, Xu F, Zhang R, Zhao Y, Yang HF. Association between urinary neonicotinoid insecticide levels and dyslipidemia risk: A cross-sectional study in Chinese community-dwelling elderly. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132159. [PMID: 37531759 DOI: 10.1016/j.jhazmat.2023.132159] [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: 03/08/2023] [Revised: 05/05/2023] [Accepted: 07/25/2023] [Indexed: 08/04/2023]
Abstract
Experimental evidence has demonstrated that neonicotinoids (NEOs) exposure can cause lipid accumulation and increased leptin levels. However, the relationship between NEOs exposure and dyslipidemia in humans remains unclear, and the interactive effects of NEOs and their characteristic metabolites on dyslipidemia remain unknown. We detected 14 NEOs and their metabolites in urine samples of 500 individuals (236 and 264 with and without dyslipidemia, respectively) randomly selected from the baseline of the Yinchuan community-dwelling elderly cohort (Ningxia, China). The NEOs and their metabolites were widely detected in urine (87.2-99.6 %) samples, and the median levels ranged within 0.06-0.55 μg/g creatinine. The positive associations and dose-dependent relationships of thiacloprid, imidacloprid-olefin, and imidacloprid-equivalent total with dyslipidemia were validated using restricted cubic spline analysis. Mixture models revealed a positive association between the NEOs mixture and dyslipidemia risk, with urine desnitro-imidacloprid ranked as the top contributor. The Bayesian Kernel Machine Regression models showed that the NEOs mixtures were associated with increased dyslipidemia when the chemical mixtures were ≥ 25th percentile compared to their medians, and desnitro-imidacloprid and imidacloprid-olefin were the major contributors to the combined effect. Given the widespread use of NEOs and the dyslipidemia pandemic, further investigations are urgently needed to confirm our findings and elucidate the underlying mechanisms.
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Affiliation(s)
- Jian Sun
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Pei He
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Rui Wang
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Zhong-Yuan Zhang
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Yu-Qing Dai
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Xiao-Yu Li
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Si-Yu Duan
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China
| | - Cai-Ping Liu
- Yinchuan Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, PR China
| | - Hao Hu
- Yinchuan Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, PR China
| | - Guang-Jun Wang
- Yinchuan Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, PR China
| | - Yan-Ping Zhang
- Yinchuan Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, PR China
| | - Fei Xu
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China; Ningxia Center for Disease Control and Prevention, Yinchuan, Ningxia 750004, PR China
| | - Rui Zhang
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Ningxia Key Laboratory of Cerebrocranial Diseases, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China.
| | - Yi Zhao
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China.
| | - Hui-Fang Yang
- School of Public Health, Ningxia Medical University, Yinchuan, Ningxia 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan, Ningxia 750004, PR China.
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Zou Y, Zhang L, Yue M, Zou Z, Wu X, Zhang Q, Huang Y, Zeng S, Chen C, Gao J. Reproductive effects of pubertal exposure to neonicotinoid thiacloprid in immature male mice. Toxicol Appl Pharmacol 2023; 474:116629. [PMID: 37468076 DOI: 10.1016/j.taap.2023.116629] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 07/02/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023]
Abstract
Thiacloprid (THIA) is a kind of neonicotinoid, a widely used insecticide class. Animal studies of adult and prenatal exposure to THIA have revealed deleterious effects on mammalian sperm fertility and embryonic development. A recent cross-sectional study linked higher THIA concentrations to delayed genitalia development stages in adolescent boys, suggesting that pubertal exposure to THIA may adversely affect reproductive development in immature males. Hence, this study aimed to investigate the effects of daily oral administration of THIA during puberty on the reproductive system of developing male mice. Young male C57 BL/6 J mice aged 21 days were administrated with THIA at concentrations of 10 (THIA-10), 50 (THIA-50) and 100 mg/kg (THIA-100) for 4 weeks by oral gavage. It is found that exposure to 100 mg/kg THIA diminished sexual behavior in immature male mice, caused a decrease in the spermatogenic cell layers and irregular arrangement of the seminiferous epithelium, and down-regulated the mRNA levels of spermatogenesis-related genes Ddx4, Scp3, Atg5, Crem, and Ki67, leading to an increase of sperm abnormality rate. In addition, THIA exposure at 50 and 100 mg/kg reduced the serum levels of testosterone and FSH, and decreased the expression levels of Star and Cyp11a1 related to testosterone biosynthesis. THIA exposure at 10 mg/kg did not produce any of the above significant changes. In conclusion, the high dose of THIA exposure impaired reproductive function in immature mice. It seems that THIA has no detrimental effects on the reproductive system of mice at low dose of 10 mg/kg.
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Affiliation(s)
- Yong Zou
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Liyu Zhang
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Min Yue
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Zhen Zou
- Dongsheng Lung-Brain Disease Joint Lab, Chongqing Medical University, Chongqing 400016, People's Republic of China; Molecular Biology Laboratory of Respiratory Diseases, Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Xu Wu
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Qiuyan Zhang
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Yue Huang
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Shaohua Zeng
- China Coal Technology & Engineering Group Chongqing Research Institute, Chongqing 400039, People's Republic of China
| | - Chengzhi Chen
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China; Dongsheng Lung-Brain Disease Joint Lab, Chongqing Medical University, Chongqing 400016, People's Republic of China.
| | - Jieying Gao
- Research Center for Environment and Human Health, School of Public Health, Chongqing Medical University, Chongqing 400016, People's Republic of China.
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Lu Z, Hu Y, Tse LA, Yu J, Xia Z, Lei X, Zhang Y, Shi R, Tian Y, Gao Y. Urinary neonicotinoid insecticides and adiposity measures among 7-year-old children in northern China: A cross-sectional study. Int J Hyg Environ Health 2023; 251:114188. [PMID: 37229902 DOI: 10.1016/j.ijheh.2023.114188] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/08/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND Neonicotinoid insecticides (NEOs) are emerging synthetic insecticides used in various pest management regimens worldwide. Toxicology studies have indicated the obesogenic potential of NEOs, but their associations with adiposity measures are largely unknown. OBJECTIVES We aimed to assess urinary levels of NEOs/metabolites and their associations with children's adiposity measures, and to further investigate the potential role of oxidative stress. METHODS This study included 380 children who participated in the 7th year's follow-up of the Laizhou Wan Birth Cohort in northern China. Urinary levels of seven NEOs and two metabolites and a biomarker of lipid peroxidation named 8-iso-prostaglandin-F2α (8-iso-PGF2α) were detected. A total of nine indicators of adiposity were measured. Body mass index (BMI) z-score ≥85th percentile was defined as overweight/obesity, and waist-to-height ratio (WHtR) ≥0.5 was considered as abdominal obesity. Multiple linear regression, binary logistic regression and mediation analysis were performed. RESULTS Six NEOs [imidacloprid (IMI, 99.7%), clothianidin (CLO, 98.9%), dinotefuran (DIN, 97.6%), thiamethoxam (THM, 95.5%), acetamiprid (ACE, 82.9%), thiacloprid (THD, 77.6%)] and two metabolites [N-desmethyl-acetamiprid (N-DMA, 100.0%), 6-chloronicotinic acid (6-CINA, 97.9%)] exhibited high detection rates. Multiple linear regressions showed positive associations of waist circumference with urinary levels of IMI and THM, of WHtR with IMI and THM levels, and of body fat percentage with 6-CINA levels. In contrast, exposure to N-DMA was negatively associated with body fat percentage and fat mass index. Binary logistic regressions further revealed that higher IMI levels were associated with overweight/obesity (OR = 1.556, 95% CI: 1.100, 2.201) and abdominal obesity (OR = 1.478, 95% CI: 1.078, 2.026) in children. 8-iso-PGF2α demonstrated 27.92%, 69.52% and 35.37% mediating effects in the positive associations of IMI, THD and THM with WHtR, respectively. Sex modified the associations of DIN with body fat mass (pint = 0.032), body fat percentage (pint = 0.009), fat mass index (pint = 0.037) and the overweight/obesity rate (pint = 0.046), with negative associations in girls and nonsignificant positive associations in boys. CONCLUSIONS School-age children in northern China were widely exposed to NEOs/metabolites. Urinary levels of NEOs/metabolites were associated with adiposity measures through the mediating role of 8-iso-PGF2α. These associations were mixed, and a sex-specific effect might exist.
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Affiliation(s)
- Zhenping Lu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Hu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lap Ah Tse
- Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong, China
| | - Jinxia Yu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Zhuanning Xia
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoning Lei
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Shi
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China; MOE-Shanghai Key Laboratory of Children's Environmental Health, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yu Gao
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Zhang H, Bai X, Zhang T, Song S, Zhu H, Lu S, Kannan K, Sun H. Neonicotinoid Insecticides and Their Metabolites Can Pass through the Human Placenta Unimpeded. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17143-17152. [PMID: 36441562 DOI: 10.1021/acs.est.2c06091] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Studies on neonicotinoid (NEO) exposure in pregnant women and fetuses are scarce, and transplacental transfer of these insecticides is unknown. In this study, parent NEOs (p-NEOs) and their metabolites (m-NEOs) were determined in 95 paired maternal (MS) and cord serum (CS) samples collected in southern China. Imidacloprid was the predominant p-NEO in both CS and MS samples, found at median concentrations of 1.84 and 0.79 ng/mL, respectively, whereas N-desmethyl-acetamiprid was the most abundant m-NEO in CS (median: 0.083 ng/mL) and MS (0.13 ng/mL). The median transplacental transfer efficiencies (TTEs) of p-NEOs and m-NEOs were high, ranging from 0.81 (thiamethoxam, THM) to 1.61 (olefin-imidacloprid, of-IMI), indicating efficient placental transfer of these insecticides. Moreover, transplacental transport of NEOs appears to be passive and structure-dependent: cyanoamidine NEOs such as acetamiprid and thiacloprid had higher TTE values than the nitroguanidine NEOs, namely, clothianidin and THM. Multilinear regression analysis revealed that the concentrations of several NEOs in MS were associated significantly with hematological parameters related to hepatotoxicity and renal toxicity. To our knowledge, this is the first analysis of the occurrence and distribution of NEOs in paired maternal-fetal serum samples.
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Affiliation(s)
- Henglin Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Xueyuan Bai
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510275, P.R. China
| | - Tao Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Shiming Song
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, P.R. China
| | - Hongkai Zhu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, P.R. China
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-Sen University, Guangzhou 510006, P.R. China
| | - Kurunthachalam Kannan
- Department of Pediatrics and Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016, United States
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, P.R. China
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Li X, He S, Xiao H, He TT, Zhang JD, Luo ZR, Ma JZ, Yin YL, Luo L, Cao LY. Neonicotinoid insecticides promote breast cancer progression via G protein-coupled estrogen receptor: In vivo, in vitro and in silico studies. ENVIRONMENT INTERNATIONAL 2022; 170:107568. [PMID: 36240625 DOI: 10.1016/j.envint.2022.107568] [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: 06/05/2022] [Revised: 09/02/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Neonicotinoid insecticides (NIs) have been widely detected in environmental media and human body with concentrations reaching hundreds of nanomolar to micromolar levels. However, the information about their human health toxicology and mechanism is deficient. Previous studies have implied that NIs might exert estrogenic disruption and promote breast cancer progression, but the molecular mechanism is unclear, especially the molecular initiating event. G protein-coupled estrogen receptor (GPER), as a candidate therapeutic target, plays vital roles in the development of breast cancer. This work aimed to reveal the potential mechanism through GPER pathway. Firstly, we screened the activities of seven most common NIs on GPER signal pathway by calcium mobilization assay. Clothianidin, acetamiprid (ACE), and dinotefuran activated GPER most potently and ACE displayed the highest agonistic activity with the lowest observed effective concentration (LOEC) of 1 μM. The molecular docking and dynamics simulation showed favored interaction trend between the NIs and GPER. The three NIs with GPER activity induced 4T1 breast cancer cells migration and ACE showed the highest potency with LOEC of 100 nM. ACE also induced 4T1 cells proliferation at high concentration of 50 μM and up-regulated GPER expression in a dose-dependent manner. We speculated that both the induction effects of ACE on 4T1 cells proliferation and migration might be owing to the activation and up-regulation of GPER. By using 4T1-Luc cells injected orthotopic tumor model, we found that ACE also promoted in-situ breast cancer growth and lung metastasis in normal mouse dependent on GPER. However, ACE only promoted in-situ breast cancer growth through GPER but not lung metastasis in ovariectomized mice, implying that the ACE-induced lung metastasis should be related to endogenous estrogen from ovary. Overall, we demonstrated that NIs promoted breast cancer progression via GPER pathway at human related exposure levels and their female health risks need urgent concerns.
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Affiliation(s)
- Xin Li
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Sen He
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Han Xiao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Ting-Ting He
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Jia-Da Zhang
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Zi-Rui Luo
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Jie-Zhi Ma
- Department of Obstetrics and Gynecology, Xiangya Third Hospital, Central South University, Changsha 410013, China
| | - Yu-Long Yin
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China
| | - Lin-Ying Cao
- College of Resources and Environment, Hunan Agricultural University, 1, Nongda Road, Furong District, Changsha 410128, China.
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Li L, Liang H, Zhao T, Liu Y, Yan S, Zhu W. Differential effects of thiamethoxam and clothianidin exposure on their tissue distribution and chronic toxicity in mice. Chem Biol Interact 2022; 366:110149. [PMID: 36084723 DOI: 10.1016/j.cbi.2022.110149] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 11/19/2022]
Abstract
The frequent application of second-generation neonicotinoids thiamethoxam (TMX) and clothianidin (CLO) has led to a high detectable rate in environment samples and poses threats to nontarget organisms and human beings, however, the information on the influences of long-term exposure at low doses was limited. In this study, the tissue distribution of TMX and CLO in mice at acceptable daily intake (ADI) level and 5 × ADI was determined and the health effects were assessed. TMX and CLO were detected in the liver, serum, lung, heart and kidney in the TMX exposure groups, which indicated that TMX degraded to CLO in mice. Residue levels of TMX in tissues increased with the increasing of doses. The concentrations of CLO in different tissues in the CLO exposure groups were in the order Ckidney > Clung > Cheart > Cliver. Measurement of biochemical indicators, combined with metabolomic analysis of liver, kidney, and cecal contents, examination of changes in the gut microbiota, and histopathological assessment indicated that both TMX and CLO affected energy absorption and lipid metabolism in mice and destroyed tissue structures. Furthermore, we found that CLO had a stronger effect on metabolism in mice, despite its lower acute toxicity. These results have prompted us to consider the chronic toxicity and potential hazards of chemicals in future risk assessments.
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Affiliation(s)
- Li Li
- College of Plant Protection, Shanxi Agricultural University, Taiyuan, 030031, PR China.
| | - Hongwu Liang
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Tingting Zhao
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Yu Liu
- Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, PR China
| | - Sen Yan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
| | - Wentao Zhu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, 100193, PR China
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