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Chen Y, Zhang H, Ge Y, Zhu Z, Ji J, Luo D, Lu S. Perchlorate in foodstuffs from South China and its implication for human dietary exposure. Food Chem Toxicol 2024; 191:114876. [PMID: 39033870 DOI: 10.1016/j.fct.2024.114876] [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: 07/03/2024] [Revised: 07/13/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024]
Abstract
Perchlorate, an aqueous-soluble compound resistant to degradation, is mainly used in the synthesis of pyrotechnics, herbicides, and other products. It serves as a pivotal component in the production of fireworks, rocket fuel, and explosives. Perchlorate was recognized as a pollutant owing to the potential toxic risk to thyroid function, which could pose a potential threat to the nervous system of infants and pregnant women. Some study had found that perchlorate existed in food, water and air. This study aimed to investigate the levels of perchlorate in six types of foods (n = 570) from South China, and evaluate potential exposure risks for residents. Vegetables were found to have the highest median levels of foods, attributed to elevated water content in leafy vegetables and facile solubility of perchlorate in water. The relatively low levels of perchlorate in food compared to other studies could attribute to the fact that the period of food we purchased in this study was during the wet season while the contaminants, such as perchlorate, were diluted. The maximum hazard quotient (HQ) values for all residents consuming different foods and water were all higher than 1 This suggested that there is a potential health risk of perchlorate to residents in South China. Those may be attributed to the high levels of perchlorate in some individual samples of meat and eggs. However, the 95th percentile of HQ values in all residents was less than 1, indicating that there is no potential health risk of perchlorate to most residents in South China.
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Affiliation(s)
- Yining Chen
- China Waterborne Transport Research Institute, Beijing, 100088, China; School of Public Health (Shenzhen), Shenzhen Campus of SunYat-sen University, Shenzhen, 518107, China
| | - Han Zhang
- Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yiming Ge
- School of Public Health (Shenzhen), Shenzhen Campus of SunYat-sen University, Shenzhen, 518107, China
| | - Zhou Zhu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Jiajia Ji
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
| | - Donghui Luo
- College of Food Science and Engineering, Guangdong Ocean University, Zhanjiang, 524088, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou, 521000, China.
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Shenzhen Campus of SunYat-sen University, Shenzhen, 518107, China.
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Ferreira LGA, Kizys MML, Gama GAC, Pachernegg S, Robevska G, Sinclair AH, Ayers KL, Dias-da-Silva MR. COUP-TFII regulates early bipotential gonad signaling and commitment to ovarian progenitors. Cell Biosci 2024; 14:3. [PMID: 38178246 PMCID: PMC10768475 DOI: 10.1186/s13578-023-01182-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 12/02/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND The absence of expression of the Y-chromosome linked testis-determining gene SRY in early supporting gonadal cells (ESGC) leads bipotential gonads into ovarian development. However, genetic variants in NR2F2, encoding three isoforms of the transcription factor COUP-TFII, represent a novel cause of SRY-negative 46,XX testicular/ovotesticular differences of sex development (T/OT-DSD). Thus, we hypothesized that COUP-TFII is part of the ovarian developmental network. COUP-TFII is known to be expressed in interstitial/mesenchymal cells giving rise to steroidogenic cells in fetal gonads, however its expression and function in ESGCs have yet to be explored. RESULTS By differentiating induced pluripotent stem cells into bipotential gonad-like cells in vitro and by analyzing single cell RNA-sequencing datasets of human fetal gonads, we identified that NR2F2 expression is highly upregulated during bipotential gonad development along with markers of bipotential state. NR2F2 expression was detected in early cell populations that precede the steroidogenic cell emergence and that retain a multipotent state in the undifferentiated gonad. The ESGCs differentiating into fetal Sertoli cells lost NR2F2 expression, whereas pre-granulosa cells remained NR2F2-positive. When examining the NR2F2 transcript variants individually, we demonstrated that the canonical isoform A, disrupted by frameshift variants previously reported in 46,XX T/OT-DSD patients, is nearly 1000-fold more highly expressed than other isoforms in bipotential gonad-like cells. To investigate the genetic network under COUP-TFII regulation in human gonadal cell context, we generated a NR2F2 knockout (KO) in the human granulosa-like cell line COV434 and studied NR2F2-KO COV434 cell transcriptome. NR2F2 ablation downregulated markers of ESGC and pre-granulosa cells. NR2F2-KO COV434 cells lost the enrichment for female-supporting gonadal progenitor and acquired gene signatures more similar to gonadal interstitial cells. CONCLUSIONS Our findings suggest that COUP-TFII has a role in maintaining a multipotent state necessary for commitment to the ovarian development. We propose that COUP-TFII regulates cell fate during gonad development and impairment of its function may disrupt the transcriptional plasticity of ESGCs. During early gonad development, disruption of ESGC plasticity may drive them into commitment to the testicular pathway, as observed in 46,XX OT-DSD patients with NR2F2 haploinsufficiency.
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Affiliation(s)
- Lucas G A Ferreira
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Marina M L Kizys
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Gabriel A C Gama
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Svenja Pachernegg
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | | | - Andrew H Sinclair
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Katie L Ayers
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Magnus R Dias-da-Silva
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
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Guo X, Liu B, Liu H, Du X, Chen X, Wang W, Yuan S, Zhang B, Wang Y, Guo H, Zhang H. Research advances in identification procedures of endocrine disrupting chemicals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:83113-83137. [PMID: 37347330 DOI: 10.1007/s11356-023-27755-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/15/2023] [Indexed: 06/23/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are increasingly concerned substance endangering human health and environment. However, there is no unified standard for identifying chemicals as EDCs, which is also controversial internationally. In this review, the procedures for EDC identification in different organizations/countries were described. Importantly, three aspects to be considered in identifying chemical substances as EDCs were summarized, which were mechanistic data, animal experiments, and epidemiological information. The relationships between them were also discussed. To elaborate more clearly on these three aspects of evidence, scientific data on some chemicals including bisphenol A, 1,2-dibromo-4-(1,2 dibromoethyl) cyclohexane and perchlorate were collected and evaluated. Altogether, the above three chemicals were assessed for interfering with hormones and elaborated their health hazards from macroscopic to microscopic. This review is helpful for standardizing the identification procedure of EDCs.
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Affiliation(s)
- Xing Guo
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Bing Liu
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Haohao Liu
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Xingde Du
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Xinghai Chen
- Department of Chemistry and Biochemistry, St Mary's University, San Antonio, TX, USA
| | - Wenjun Wang
- College of Nursing, Jining Medical University, Jining, Shandong, People's Republic of China
| | - Shumeng Yuan
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Bingyu Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Yongshui Wang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Hongxiang Guo
- College of Life Sciences, Henan Agricultural University, Zhengzhou, Henan, 450001, People's Republic of China
| | - Huizhen Zhang
- College of Public Health, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
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Serrano-Nascimento C, Nunes MT. Perchlorate, nitrate, and thiocyanate: Environmental relevant NIS-inhibitors pollutants and their impact on thyroid function and human health. Front Endocrinol (Lausanne) 2022; 13:995503. [PMID: 36339434 PMCID: PMC9633673 DOI: 10.3389/fendo.2022.995503] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/05/2022] [Indexed: 11/13/2022] Open
Abstract
Thyroid disruptors are found in food, atmosphere, soil, and water. These contaminants interfere with the thyroid function through the impairment of thyroid hormone synthesis, plasma transport, peripheral metabolism, transport into the target cells, and thyroid hormone action. It is well known that iodide uptake mediated by the sodium-iodide symporter (NIS) is the first limiting step involved in thyroid hormones production. Therefore, it has been described that several thyroid disruptors interfere with the thyroid function through the regulation of NIS expression and/or activity. Perchlorate, nitrate, and thiocyanate competitively inhibit the NIS-mediated iodide uptake. These contaminants are mainly found in food, water and in the smoke of cigarettes. Although the impact of the human exposure to these anions is highly controversial, some studies indicated their deleterious effects in the thyroid function, especially in individuals living in iodine deficient areas. Considering the critical role of thyroid function and the production of thyroid hormones for growth, metabolism, and development, this review summarizes the impact of the exposure to these NIS-inhibitors on thyroid function and their consequences for human health.
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Affiliation(s)
- Caroline Serrano-Nascimento
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF), Universidade Federal de São Paulo (UNIFESP), Sao Paulo, Brazil
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Maria Tereza Nunes
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Xu J, Zhu Z, Zhong B, Gong W, Du S, Zhang D, Chen Y, Li X, Zheng Q, Ma J, Sun L, Lu S. Health risk assessment of perchlorate and chlorate in red swamp crayfish (Procambarus clarkii) in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 842:156889. [PMID: 35753452 DOI: 10.1016/j.scitotenv.2022.156889] [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: 04/20/2022] [Revised: 06/14/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
Perchlorate and chlorate are both strong oxidants and thyroid toxicants that are widely distributed in soil, water and human foods. The red swamp crayfish (Procambarus clarkii) is a common aquatic organism that is popular in Chinese culinary dishes. Dietary intake is the main route of human exposure to perchlorate and chlorate, though the health risks of crayfish consumption are unknown. Thus, this study investigated the quantities of perchlorate and chlorate in red swap crayfish from sampling sites in five provinces located near the Yangtze River in China, along with the associated health risks of consuming this species. Perchlorate was detected in 55.6-100 % of crayfish samples in each sampling location, and chlorate was found in 100 % of samples cross all sites. Concentrations of perchlorate in crayfish from upstream provinces (Hubei, Hunan and Jiangxi) were higher than those from downstream provinces (Anhui and Jiangsu). Perchlorate and chlorate concentrations were positively correlated in crayfish, suggesting that chlorate may be a degradation byproduct of perchlorate. The quantities of both pollutants in hepatopancreas tissue were higher than in muscle tissues (p < 0.05), such that we do not recommend ingesting crayfish hepatopancreas. Hazard quotient (HQ) values for chlorate in crayfish were <1 across all provinces, suggesting no potential health risk of chlorate exposure through crayfish consumption. However, perchlorate concentrations in crayfish from the Jiangxi province had an associated HQ value >1, suggesting potential risks for human health. These results will be useful in informing mitigation measures aimed at reducing perchlorate exposure associated with crayfish consumption.
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Affiliation(s)
- Jiayi Xu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Zhou Zhu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Baisen Zhong
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Weiran Gong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China
| | - Sijin Du
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Duo Zhang
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Yining Chen
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Xiangyu Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Quanzhi Zheng
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Jiaojiao Ma
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Litao Sun
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China.
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King L, Huang Y, Li T, Wang Q, Li W, Shan Z, Yin J, Chen L, Wang P, Dun C, Zhuang L, Peng X, Liu L. Associations of urinary perchlorate, nitrate and thiocyanate with central sensitivity to thyroid hormones: A US population-based cross-sectional study. ENVIRONMENT INTERNATIONAL 2022; 164:107249. [PMID: 35468408 DOI: 10.1016/j.envint.2022.107249] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 03/10/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Perchlorate, nitrate, and thiocyanate are three well-known sodium iodine symporter inhibitors, however, associations of their individual and concurrent exposure with central thyroid hormones sensitivity remain unclear. OBJECTIVES To investigate the associations of urinary perchlorate, nitrate, thiocyanate, and their co-occurrence with central thyroid hormones sensitivity among US general adults. METHODS A total of 7598 non-pregnant adults (weighted mean age 45.9 years and 52.9% men) from National Health and Nutritional Examination Survey 2007-2012 were included in this cross-sectional study. Central sensitivity to thyroid hormones was estimated with the Parametric Thyroid Feedback Quantile-based Index (PTFQI). Ordinary least-squares regression, weighted quantile sum (WQS) regression, and Bayesian kernel machine regression (BKMR) models were performed to examine the associations of three anions and their co-occurrence with PTFQI. RESULTS The weighted mean values of urinary perchlorate, nitrate, thiocyanate, and perchlorate equivalent concentration (PEC) were 5.48 μg/L, 57.59 mg/L, 2.65 mg/L, and 539.8 μg/L, respectively. Compared with the lowest quartile, the least-square means difference (LSMD) of PTFQI was -0.0516 (LSMD ± SE: -0.0516 ± 0.0185, P < 0.01) in the highest perchlorate quartile. On average, PTFQI decreased by 0.0793 (LSMD ± SE: -0.0793 ± 0.0205, P < 0.001) between the highest and lowest thiocyanate quartile. Compared with those in the lowest quartile, participants in the highest PEC quartile had significantly decreased PTFQI levels (LSMD ± SE: -0.0862 ± 0.0188, P < 0.001). The WQS of three goitrogens, was inversely associated with PTFQI (β: -0.051, 95% CI: -0.068, -0.034). In BKMR model, PTFQI significantly decreased when the levels of three anions were at or above their 60th percentiles compared to the median values. CONCLUSIONS Higher levels of urinary perchlorate, thiocyanate, and co-occurrence of three goitrogens were associated with increased central thyroid hormones sensitivity among US general adults. Further studies are warranted to replicate our results and elucidate the underlying causative mechanistic links.
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Affiliation(s)
- Lei King
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Huang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Li
- Institute of Statistics and Big Data, Renmin University of China, Beijing, China
| | - Qiang Wang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wanyi Li
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhilei Shan
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiawei Yin
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangkai Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pei Wang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changchang Dun
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Litao Zhuang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaolin Peng
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Non-communicable Disease Prevention and Control, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, China.
| | - Liegang Liu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Sousa-Vidal ÉK, Henrique G, da Silva REC, Serrano-Nascimento C. Intrauterine exposure to di(2-ethylhexyl) phthalate (DEHP) disrupts the function of the hypothalamus-pituitary-thyroid axis of the F1 rats during adult life. Front Endocrinol (Lausanne) 2022; 13:995491. [PMID: 36714560 PMCID: PMC9880230 DOI: 10.3389/fendo.2022.995491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/07/2022] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION DEHP is an endocrine disruptor widely used in the production of malleable plastics. DEHP exposure was associated with altered hypothalamic-pituitary-thyroid (HPT) axis function. Although previous studies reported deleterious effects of DEHP exposure during the intrauterine period, few studies have evaluated the direct effects triggered by this endocrine disruptor on the offspring animals' thyroid function. This study aimed to investigate the impact of intrauterine exposure to DEHP on the HPT axis function programming of the offspring animals during adulthood. METHODS Pregnant Wistar rats were orally treated with corn oil or corn oil supplemented with DEHP (0.48 or 4.8 mg/kg/day) throughout the gestational period. The offspring rats were euthanized on the 90th postnatal day. Hypothalamus, pituitary, thyroid, and liver were collected to analyze gene expression and protein content through qPCR and Western Blot. Blood was collected to determine TSH and thyroid hormone levels through fluorometric or chemiluminescence immunoassays. RESULTS In the adult F1 female rats, the highest dose of DEHP decreased TSH serum levels. In the thyroid, DEHP reduced the gene expression and/or protein content of NIS, TSHR, TG, TPO, MCT8, NKX2.1, PAX8, and FOXE1. These data are consistent with the reduction in T4 serum levels of the F1 DEHP-exposed female rats. In the liver, DEHP exposure increased the mRNA expression of Dio1 and Ttr, while the highest dose of DEHP reduced the mRNA expression of Ugt1a1 and Ugt1a6. Conversely, in the F1 male adult rats, TSHB expression and TSH serum levels were increased in DEHP-exposed animals. In the thyroid, except for the reduced protein content of TSHR, none of the evaluated genes/proteins were altered by DEHP. TH serum levels were not changed in the DEHP-exposed F1 male rats compared to the control group. Additionally, there were no significant alterations in the expression of hepatic enzymes in these animals. DISCUSSION/CONCLUSIONS Our results demonstrated, for the first time, that intrauterine exposure to DEHP disrupts the HPT axis function in male and female offspring rats and strongly suggest that DEHP exposure increases the susceptibility of the offspring animals to develop thyroid dysfunctions during adulthood.
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Affiliation(s)
- Érica Kássia Sousa-Vidal
- Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Guilherme Henrique
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Renata Elen Costa da Silva
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Caroline Serrano-Nascimento
- Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Laboratório de Endocrinologia Molecular e Translacional (LEMT), Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF), Departamento de Ciências Biológicas, Universidade Federal de São Paulo (UNIFESP), Diadema, Brazil
- *Correspondence: Caroline Serrano-Nascimento,
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Wang L, Guo M, Feng G, Wang P, Xu J, Yu J. Effects of chronic exposure to nonylphenol at environmental concentration on thyroid function and thyroid hyperplasia disease in male rats. Toxicology 2021; 461:152918. [PMID: 34464681 DOI: 10.1016/j.tox.2021.152918] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/21/2021] [Accepted: 08/25/2021] [Indexed: 10/20/2022]
Abstract
The aim of this work was to determine whether chronic exposure to nonylphenol (NP), a representative substance of environmental endocrine disruptors (EEDs), at environmental concentration would have toxic effects on thyroid function and thyroid hyperplasia disease. Two hundred SPF Sprague-Dawley rats were divided into five groups (n = 40 per group): blank control group (corn oil), low-dose NP exposure group (0.4 mg/kg/d), medium-dose NP exposure group (4 mg/kg/d), high-dose NP exposure group (40 mg/kg/d), and estradiol control group (E2: 30 μg/kg/d). The rats were treated by gavage for 34 weeks, which were sampled twice (17 weeks and 34 weeks respectively). NP accumulation in the thyroid tissue (F = 52.93, P < 0.001) and serum (F = 5.54, P = 0.00) continuously increased in a significant dose-effect relationship. After NP exposure, the serum FT3 levels exhibited a dose-dependent increasing trend (F = 4.68, P = 0.01), while the serum FT4 level showed an opposite trend (F = 3.93, P= 0.01). Compared with the control group, hyperechoic areas (i.e., calcification points) were observed in the high-dose group. Follicular epithelial stratification was extremely severe, the monolayer cubic epithelial cells became flat, and the area of single follicles was even smaller in the high-dose group. In the high-dose NP group, there were numerous mitochondria that were severely swollen. The rough endoplasmic reticulum was abundant, with obvious expansion and vesiculation. The relative expression of ERα (F = 5.29, P = 0.00), ERβ (F = 10.17, P = 0.00), TRα (F = 7.71, P = 0.00), TRβ (F = 3.52.17, P = 0.02) and HMGB1 (F = 10.16, P = 0.01) proteins in the thyroid tissue in each NP exposure group was increased compared with the control group, and the relative expression of proteins increased if the exposure time was prolonged under the same exposure dose. Chronic exposure to NP at environmental concentration could have toxic effects on thyroid function, and induce thyroid hyperplasia disease in male rats.
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Affiliation(s)
- Lin Wang
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563000, PR China; Division of Infectious Disease Prevention and Control, Laiyang Center for Disease Control and Prevention, Laiyang, Shandong, 265200, PR China
| | - Mei Guo
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563000, PR China
| | - Guoli Feng
- Department of Thyroid & Breast Surgery, Affiliated Hospital Of Zunyi Medical University, Zunyi, Guizhou, 563000, PR China
| | - Pan Wang
- Department of Nuclear Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, 563000, PR China
| | - Jie Xu
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563000, PR China.
| | - Jie Yu
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563000, PR China.
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Chen Y, Zhu Z, Zhao Y, Wu X, Xiao Q, Deng Y, Li M, Li C, Qiu H, Lu S. Perchlorate in shellfish from South China Sea and implications for human exposure. MARINE POLLUTION BULLETIN 2021; 170:112672. [PMID: 34218037 DOI: 10.1016/j.marpolbul.2021.112672] [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: 04/30/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Shellfish can absorb and accumulate contaminants. The consumption of shellfish could expose humans to pollutants and increase related health risk. Perchlorate (ClO4-) is a ubiquitous pollutant and could affect thyroid functions, especially for children and pregnant women. However, knowledge on the contamination of perchlorate in aquatic food such as shellfish remains limited. This study aimed to investigate the abundances of perchlorate in shellfish from South China Sea and to assess human exposure risks. A total of 178 shellfish samples from eight species were collected from offshore aquaculture waters in South China Sea. Perchlorate was detected in 99.4% of them, suggesting widespread pollution in coastal waters. Concentrations of perchlorate ranged from not detected (N.D.) to 71.5 μg kg-1, with a median value of 4.33 μg kg-1. Estimated daily intake (EDI) and hazard quotient (HQ) were used to assess human exposure dose and health risks, respectively. The HQ values were determined to be less than 1, indicating no significant health risks to local residents via shellfish consumption. To our knowledge, this is the first study to investigate perchlorate contamination in South China shellfish and assess potential human risks.
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Affiliation(s)
- Yining Chen
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Zhou Zhu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Yang Zhao
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Xiaoling Wu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Qinru Xiao
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Yilan Deng
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Minhui Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Chun Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Hongmei Qiu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Shaoyou Lu
- School of Public Health (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China.
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Zheng R, Liu R, Wu M, Wang H, Xie L. Effects of sodium perchlorate and exogenous L-thyroxine on growth, development and leptin signaling pathway of Bufo gargarizans tadpoles during metamorphosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111410. [PMID: 33007540 DOI: 10.1016/j.ecoenv.2020.111410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/20/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Sodium perchlorate (NaClO4) and exogenous L-thyroxine (T4), two kinds of endocrine-disrupting chemicals (EDCs), mainly affect the circulating thyroid hormones, which regulate the initiation and rate of metamorphosis in amphibian. The aim of this study is to evaluate the potential role of EDCs in regulating the development of tadpoles and leptin signaling pathway of liver during the metamorphosis of Bufo gargarizans. There was completely opposite result of average development stage of tadpoles and morphological parameters between the NaClO4 and T4 exposure groups. Histological analysis revealed that NaClO4 and T4 exposure both caused liver injury, such as the decreased size of hepatocytes, atrophy of nucleus, increased melanomacrophage centres and disappearance of hepatocyte membranes. In addition, the results of RT-qPCR revealed that NaClO4 treatment significantly inhibited the transcript levels of genes related to thyroid hormone (D2, TRα and TRβ) and leptin signaling pathway (LepR, JAK1, JAK2, and TYK2), while there was an increase of mRNA expression of these genes in the liver of tadpoles administrated with T4 compared with control. This work lays an important foundation for assessing the risk of EDCs in relation to amphibian development during metamorphosis.
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Affiliation(s)
- Rui Zheng
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Rong Liu
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Minyao Wu
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China
| | - Hongyuan Wang
- College of Life Science, Shaanxi Normal University, Xi'an 710119, China.
| | - Lei Xie
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, 325035, Wenzhou, China; College of Life and Environmental Science, Wenzhou University, 325035, Wenzhou, China.
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11
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Wang L, Xu J, Zeng F, Fu X, Xu W, Yu J. Influence of nonylphenol exposure on basic growth, development, and thyroid tissue structure in F1 male rats. PeerJ 2019; 7:e7039. [PMID: 31245175 PMCID: PMC6586153 DOI: 10.7717/peerj.7039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/29/2019] [Indexed: 11/24/2022] Open
Abstract
Objective Environmental endocrine disruptors (EEDs) with a weak ability to mimic estrogen have been associated with thyroid dysfunction. However, little is known about the effect of nonylphenol (NP), a well-known EED, on thyroid structure. The present study evaluates whether gestational and lactational exposure to NP impacts growth and thyroid structure in F1 male rats. Methods A total of 60 rats were gavaged with NP (25, 50, and 100 mg/kg), estradiol (E2, 30 μg/kg/day), and corn oil alone (vehicle control) from gestational day 6 to postnatal day (PND) 21. Serum thyroid hormones free triiodothyronine (FT3), free thyroxine (FT4) and thyroid stimulating hormone levels were detected by automated chemiluminescence immunoassay analyzer. The NP level in the thyroid was measured using high-performance liquid chromatography. The ultrastructure of follicular epithelial cells was examined using transmission electron microscopy. Histopathology was conducted using hematoxylin and eosin staining. Results On PND 0, exposure to 50 and 100 mg/kg/day NP led to a significant decrease in the average litter size, litter weight and number of live pups per litter compared to the control group (P < 0.05). Dams exposed to NP during perinatal period demonstrated decreased serum levels of FT3 and FT4 in F1 male rats, when compared to the control group (P < 0.05). The NP level in the control group was 3.39 ± 0.08 ng/mg, while NP levels in the low, middle, and high dose groups ranged from 5.20 to 11.00 ng/mg. Exposure caused a dose-related increase in NP level in the thyroid of male pups (P < 0.01). The thicknesses of the thyroid follicular epithelium were 2.06 ± 0.37 μm in the control group and 3.97 ± 1.61 μm in the high-dose group. The thickness of the thyroid follicular epithelium increased with an increase in treatment dose in a dose-dependent manner (P < 0.05). The sizes of the thyroid follicles were 1,405.53 ± 866.62 μm2 in the control group and 317.49 ± 231.15 μm2 in the high-dose group. With increasing NP dosages, animals showed a decreased size of the thyroid follicle (P < 0.01). Thyroid follicular cells of NP-treated rats showed mildly swollen mitochondria and dilated rough endoplasmic reticulum in the cytoplasm. Conclusion Nonylphenol can cross the placental barrier and accumulate in the thyroid of F1 male rats. Gestational and lactational exposure to NP in dams impacted both development and growth of pups and damaged the ultrastructure of their thyroid tissue, which may further negatively influence normal thyroid function.
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Affiliation(s)
- Lin Wang
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Jie Xu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Feng Zeng
- Breast & Thyroid Disease Medical Center, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xiangjun Fu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Weihong Xu
- School of Public Health, Zunyi Medical University, Zunyi, China
| | - Jie Yu
- School of Public Health, Zunyi Medical University, Zunyi, China
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Cao F, Jaunat J, Sturchio N, Cancès B, Morvan X, Devos A, Barbin V, Ollivier P. Worldwide occurrence and origin of perchlorate ion in waters: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 661:737-749. [PMID: 30684841 DOI: 10.1016/j.scitotenv.2019.01.107] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Perchlorate (ClO4-) is a persistent water soluble oxyanion of growing environmental interest. Perchlorate contamination can be a health concern due to its ability to disrupt the use of iodine by the thyroid gland and the production of metabolic hormones. Its widespread presence in surface water and groundwater makes the aquatic environment a potential source of perchlorate exposure. However, the amount of published data on perchlorate origins and water contamination worldwide remains spatially limited. Here, we present an overview of research on perchlorate origins and occurrences in water, and the methodology to distinguish the different perchlorate sources based on isotope analysis. All published ranges of isotopic content in perchlorate from different sources are presented, including naturally occurring and man-made perchlorate source types, as well as the effects of isotope fractionation that accompanies biodegradation processes. An example of a case study in France is presented to emphasize the need for further research on this topic.
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Affiliation(s)
- Feifei Cao
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France.
| | - Jessy Jaunat
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France
| | - Neil Sturchio
- Department of Geological Sciences, University of Delaware, 255 Academy Street/103 Penny Hall, Newark, DE 19716, United States
| | - Benjamin Cancès
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France
| | - Xavier Morvan
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France
| | - Alain Devos
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France
| | - Vincent Barbin
- Université de Reims Champagne-Ardenne - GEGENAA - EA 3795, 2 esplanade Roland Garros, 51100 Reims, France
| | - Patrick Ollivier
- BRGM, 3 av. C. Guillemin, BP 36009, 45060 Orléans Cedex 2, France
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Zhang YF, Xu HM, Yu F, Yang HY, Jia DD, Li PF. Comparison the sensitivity of amphibian metamorphosis assays with NF 48 stage and NF 51 stage Xenopus laevis tadpoles. Toxicol Mech Methods 2019; 29:421-427. [PMID: 30732517 DOI: 10.1080/15376516.2019.1579291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The amphibian metamorphosis assay (AMA) was proposed by the Organization for Economic Cooperation and Development (OECD) to screen thyroid disruptors of vertebrate species. The general experimental design of the AMA exposes Nieuwkoop and Faber (NF) stage 51 Xenopus laevis tadpoles to test chemical concentrations for 21 d. However, recent studies demonstrated that thyroid gland began to function after NF stage 45 in X. laevis. Thus, in this study, we initiated exposure with NF stage 48 tadpoles when the thyroid gland is still in a preliminary development period, to compare the sensitivity of the AMA with NF 48 stage and NF 51 stage tadpoles. Further, the application and sensitivity of the optimized AMA were evaluated and validated by two known thyroid toxicants methimazole (MMI) and sodium perchlorate (SP). The observational endpoints are developmental stage, hind limb length (HLL), snout-vent length (SVL), wet weight, and daily observations of mortality. The results were as follows. Although the sensitivity to endpoint of growth, such as wet weight and SVL was similar between the two assays, our optimized AMA detected delaying effects of 1 mg/L MMI and 32 μg/L SP on metamorphosis development both on day 7 and at test termination, which were lower than those in AMA. Additionally, it is easier to get a large number of animals at NF stage 48 than NF stage 51 in a short time. Thus, it is suggested that the NF stage 48 tadpoles might be applied to the AMA for efficiently screening the thyroid-active substances.
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Affiliation(s)
- Yin-Feng Zhang
- a College of Medicine , Institute for Translational Medicine, Qingdao University , Qingdao , PR China
| | - Hai-Ming Xu
- b Department of Occupational and Environmental Medicine, School of Public Health and Management , Ningxia Medical University , Yinchuan , PR China
| | - Fei Yu
- a College of Medicine , Institute for Translational Medicine, Qingdao University , Qingdao , PR China
| | - Hong-Yu Yang
- a College of Medicine , Institute for Translational Medicine, Qingdao University , Qingdao , PR China
| | - Dong-Dong Jia
- a College of Medicine , Institute for Translational Medicine, Qingdao University , Qingdao , PR China
| | - Pei-Feng Li
- a College of Medicine , Institute for Translational Medicine, Qingdao University , Qingdao , PR China
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Domenech-Coca C, Mariné-Casadó R, Caimari A, Arola L, del Bas JM, Bladé C, Rodriguez-Naranjo MI. Dual liquid-liquid extraction followed by LC-MS/MS method for the simultaneous quantification of melatonin, cortisol, triiodothyronine, thyroxine and testosterone levels in serum: Applications to a photoperiod study in rats. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1108:11-16. [DOI: 10.1016/j.jchromb.2019.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 12/29/2018] [Accepted: 01/02/2019] [Indexed: 12/13/2022]
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Acevedo-Barrios R, Sabater-Marco C, Olivero-Verbel J. Ecotoxicological assessment of perchlorate using in vitro and in vivo assays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:13697-13708. [PMID: 29504076 DOI: 10.1007/s11356-018-1565-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/13/2018] [Indexed: 06/08/2023]
Abstract
Perchlorate is an inorganic ion widespread in the environment, generated as a natural and anthropogenic pollutant, with known endocrine disruption properties in the thyroid gland. Nonetheless, there are few reports of its ecotoxicological impact on wildlife. The aim of this study was to evaluate the adverse effects of KClO4 exposure on different cell lines, HEK, N2a, and 3T3, as well as in ecological models such as Vibrio fischeri, Pseudokirchneriella subcapitata, Daphnia magna, and Eisenia fetida. Perchlorate exhibited similar toxicity against tested cell lines, with LC50 values of 19, 15, and 19 mM for HEK, N2a, and 3T3, respectively; whereas in V. fischeri, the toxicity, examined as bioluminescence reduction, was considerably lower (EC50 = 715 mM). The survival of the freshwater algae P. subcapitata was significatively impaired by perchlorate (LC50 = 72 mM), and its effect on the lethality in the crustacean D. magna was prominent (LC50 = 5 mM). For the earthworm E. fetida, the LC50 was 56 mM in soil. In this organism, perchlorate induced avoidance behavior, weight loss, and decreased egg production and hatchling, as well as morphological and histopathological effects, such as malformations, dwarfism, and necrosis. In conclusion, perchlorate toxicity varies according to the species, although E. fetida is a sensitive model to generate information regarding the toxicological impact of KClO4 on biota.
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Affiliation(s)
- Rosa Acevedo-Barrios
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia
- Biological and Chemical Studies Group, School of Basic Sciences, Technological University of Bolivar, Cartagena, 130010, Colombia
| | | | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia.
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