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Basaran B, Turk H. The levels, single and multiple health risk assessment of 23 metals in enteral nutrition formulas. Food Chem Toxicol 2024; 192:114914. [PMID: 39127122 DOI: 10.1016/j.fct.2024.114914] [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: 07/24/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
Enteral nutrition formulas are products that provide macro and micronutrients to patients who cannot receive their nutrition orally. In this study, the levels of 23 metals known to have potential health risks were determined by inductively coupled plasma mass spectrometry in a total of 28 enteral nutrition formula. Metal exposure was calculated according to three different daily energy intake scenarios (Scenario 1 = 50% oral nutrition + 50% enteral nutrition formula, Scenario 2 = 25% oral nutrition + 75% enteral nutrition formula and Scenario 3 = 100% enteral nutrition formula) and evaluated in terms of non-carcinogenic health risks. The mean levels of Fe, Co, Ni, Cu, Zn, Mo, Se, Li, Be, V, As, Sr, Ag, Cd, Sb, Ba, La, Hg and Pb in the samples analyzed were determined 12,000 ± 3300, 64 ± 1.6, 10 ± 13, 1300 ± 400, 8500 ± 2500, 75 ± 30, 61 ± 21, 0.34 ± 0.36, 0.05 ± 0.08, 7.3 ± 2, 1.6 ± 0.6, 457 ± 166, 0.02 ± 0.1, 0.14 ± 0.12, 0.01 ± 0.1, 74 ± 103, 0.63 ± 0.4, 0.05 ± 0.03 and 0.14 ± 0.7 μg/L. These metals were considered safe in terms of non-carcinogenic health risks when analyzed individually. However, when the target hazard quotient values of all metals were evaluated together, hazard index values were higher than the reference value of 1, for both men and women, indicating potential health risks.
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Affiliation(s)
- Burhan Basaran
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Recep Tayyip Erdogan University, Rize, 53100, Türkiye.
| | - Hulya Turk
- Department of Biology, Science Faculty, Ataturk University, Erzurum, 25240, Türkiye
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2
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Belisheva NK, Drogobuzhskaya SV. Rare Earth Element Content in Hair Samples of Children Living in the Vicinity of the Kola Peninsula Mining Site and Nervous System Diseases. BIOLOGY 2024; 13:626. [PMID: 39194565 DOI: 10.3390/biology13080626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 07/31/2024] [Accepted: 08/09/2024] [Indexed: 08/29/2024]
Abstract
The aim of this study is to assess the rare earth element (REE) content in hair samples of children living in Lovozero village, near an REE mining site, and the possible effects of REEs on the prevalence of nervous system diseases in Lovozersky District (Murmansk region, Kola Peninsula). Fifty-three school-age children were recruited for the analysis of REE content in hair samples. REE (Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) content was estimated by means of inductively coupled plasma mass spectrometry (ICP-MS). The analysis of REE content in the hair of children living in Russia, Kazakhstan, and China indicated REE intake from the environment. The possible contribution of REEs to nervous system disorders is supported by the link between the REE content in hair samples of children living near REE mining areas (China) and the manifestation of cognitive disorders in these children. It is also found that the prevalence of nervous system diseases in children aged 15-17 years is higher in Lovozersky District compared to the other districts of the Murmansk region. In this paper, the possible contribution of REEs to the prevalence of episodic paroxysmal disorders (G40-G47), cerebral palsy (G80-G83), and epilepsy and status epilepticus (G40-G41) is discussed.
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Affiliation(s)
- Natalia K Belisheva
- Research Centre for Human Adaptation in the Arctic, Federal Research Centre "Kola Science Centre of the Russian Academy of Sciences" (RCHAA KSC RAS), Akademgorodok, 41a, 184209 Apatity, Russia
| | - Svetlana V Drogobuzhskaya
- Tananaev Institute of Chemistry-Subdivision of the Federal Research Centre "Kola Science Centre of the Russian Academy of Sciences", Akademgorodok, 26 a, 184209 Apatity, Russia
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3
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Yan S, Xu S, Lei S, Gao Y, Chen K, Shi X, Guo Y, Bilyera N, Yuan M, Yao H. Hyperaccumulator extracts promoting the phytoremediation of rare earth elements (REEs) by Phytolacca americana: Role of active microbial community in rhizosphere hotspots. ENVIRONMENTAL RESEARCH 2024; 252:118939. [PMID: 38621629 DOI: 10.1016/j.envres.2024.118939] [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: 02/20/2023] [Revised: 03/29/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
The increased usage of rare earth elements (REEs) leads to the extensive exploitation of rare earth mines, and the REEs pollution in soil caused by the legacy mine tailings has brought great harm to environment and human health. Although Phytolacca americana can remove REEs from contaminated soil to some extent, there is still an urgent problem to improve its efficiency. Hyperaccumulator extract is a new organic material with potential in metal phytoextraction, but its role in REEs phytoremediation and the related underlying processes remain unclear. In this study, hyperaccumulator extracts from P. americana root (PR), stem (PS), leaf (PL) and EDTA were used to improve the phytoremediation efficiency of REEs with P. americana. Soil zymography was applied to assess the enzyme hotspots' spatial distribution in the rhizosphere, and the hotspots' microbial communities were also identified. The results indicated that the application of hyperaccumulator extracts improved the biomass and REEs uptake of P. americana, and the highest REEs content in plant was observed in the treatment of PS, which increased 299% compared to that of the control. Hotspots area of β-glucosidase, leucine aminopeptidase and acid phosphatase were concentrated in the pant rhizosphere along the roots and increased 2.2, 5.3 and 2.2 times after PS application compared to unamended soils. The PS application increased the relative abundance of Proteobacteria, Cyanobacteria, Bacteroidota and Firmicutes phyla in rhizosphere. Soil fungi have a higher contribution on promoting REEs activation than that of bacteria. Available P and extractable REEs were leading predictors for the plant biomass and REEs concentrations. The co-occurrence network showed that the application of PS creates a more efficient and stable microbial network compared to other treatments. In conclusion, stem-derived hyperaccumulator extract is excellent in stimulating REEs phytoremediation with P. americana by improving hotspots microbial activities and form a healthy rhizosphere microenvironment.
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Affiliation(s)
- Shengpeng Yan
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Shengwen Xu
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Shihan Lei
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Yuan Gao
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Keyi Chen
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Xiaoyu Shi
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Yingying Guo
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Nataliya Bilyera
- Geo-Biosphere Interactions, Department of Geosciences, University of Tuebingen, 72076, Tuebingen, Germany
| | - Ming Yuan
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
| | - Huaiying Yao
- Key Laboratory of Green Chemical Engineering Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, 430205, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Urban Environment Observation and Research Station, Chinese Academy of Sciences, Ningbo, China
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4
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Wang W, Yang Y, Wang D, Huang L. Toxic Effects of Rare Earth Elements on Human Health: A Review. TOXICS 2024; 12:317. [PMID: 38787096 PMCID: PMC11125915 DOI: 10.3390/toxics12050317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/18/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024]
Abstract
Rare earth elements (REEs) are a new type of material resource which have attracted significant attention in recent years. REEs have emerged as essential metals in modern-day technology due to their unique functions. The long-term, large-scale mining and utilization of rare earths has caused serious environmental pollution and constitutes a global health issue, which has raised concerns regarding the safety of human health. However, the toxicity profile of suspended particulate matter in REEs in the environment, which interacts with the human body, remains largely unknown. Studies have shown that REEs can enter the human body through a variety of pathways, leading to a variety of organ and system dysfunctions through changes in genetics, epigenetics, and signaling pathways. Through an extensive literature search and critical analysis, we provide a comprehensive overview of the available evidence, identify knowledge gaps, and make recommendations for future research directions.
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Affiliation(s)
| | | | | | - Lihua Huang
- School of Public Health, Baotou Medical College, Baotou 014030, China; (W.W.); (Y.Y.); (D.W.)
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5
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Wang H, Chen Z, Feng L, Chen Z, Owens G, Chen Z. Uptake and transport mechanisms of rare earth hyperaccumulators: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119998. [PMID: 38169266 DOI: 10.1016/j.jenvman.2023.119998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 12/18/2023] [Accepted: 12/28/2023] [Indexed: 01/05/2024]
Abstract
Due to their use in a number of advanced electronic technologies, Rare earth elements (REEs) have recently emerged as a key strategic resource for many nations worldwide. The significant increase in demand for REEs has thus greatly increased the mining of these substances, but this industrial-scale expansion of mining activities also poses potential risks to the surrounding environment, flora, fauna, and humans. Hence efficient REE remediation is one potential remediation process involving in situ clean-up of contaminated soil which has gained much attention in recent years, due to its low cost and lack of secondary pollution. However, some crucial aspects of phytoremediation, such as the precise-mechanisms of absorption, transport, and tolerance of REEs by hyperaccumulators -are poorly understood. This review briefly discusses the environmental risks associated with excess REEs, the efficacy of phytoremediation technologies coupled with, appropriate hyperaccumulator species to migrate REEs exposure. While REEs hyperaccumulator species should ideally be large-biomass trees and shrubs suitable for cropping in subtropical regions areas, such species have not yet been found. Specifically, this review focuses on the factors affecting the bioavailability of REEs in plants, where organic acids are critical ligands promoting efficient transport and uptake. Thus the uptake, transport, and binding forms of REEs in the above-ground parts of hyperaccumulators, especially the transporters isolated from the heavy metal transporter families, are discussed in detail. Finally, having summarized the current state of research in this area, this review proceeds to discuss current knowledge gaps and research directions. With a focus on hyperaccumulators, this review serves as a basis for future phytoremediation strategies of rare earth mining-impacted environments and addresses ecosystem/environmental degradation issues resulting from such mining activity.
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Affiliation(s)
- Haiyan Wang
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Zhibiao Chen
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China.
| | - Liujun Feng
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Zhiqiang Chen
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Gary Owens
- Environmental Contaminants Group, Future Industries Institute, University of South Australian, Mawson Lakes, SA, 5095, Australia
| | - Zuliang Chen
- School of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian Province, China.
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Satapathy SN, Nial PS, Tulsiyan KD, Subudhi U. Light rare earth elements stabilize G-quadruplex structure in variants of human telomeric sequences. Int J Biol Macromol 2024; 254:127703. [PMID: 37918592 DOI: 10.1016/j.ijbiomac.2023.127703] [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: 06/24/2023] [Revised: 09/20/2023] [Accepted: 10/17/2023] [Indexed: 11/04/2023]
Abstract
Recently, light rare earth elements (LREEs) are gaining importance in modern-day technologies. Thus, the entry of LREEs into biochemical pathways cannot be ignored, which might affect the conformation of biomacromolecules. Herein, for the first time, we discover the G-quadruplex formation in the human telomeric variants in presence of micromolar concentrations of LREEs. Thermal melting show that the LREE-induced unimolecular G-quadruplex structure. Isothermal titration calorimetry, UV-vis, and CD spectroscopy results suggest the binding stoichiometry of lanthanide ions to telomeric variants is 2:1. The data confirms that the LREE ions coordinate between adjacent G-quartets. The excess LREE ions are most likely binding to quadruplex loops. The CD spectra revealed that the LREE-induced quadruplex in human telomere and its variant have antiparallel orientation. The binding equilibria of LREEs have been studied both in the presence and absence of competing metal cations. Addition of LREEs to the Na+ or K+-induced G-quadruplexes led to conformational change, which may be ascribed to the displacement of K+ or Na+ ions by LREE ions and formation of a more compact LREE-induced G-quadruplex structure in human telomeric variant. Moreover, the thymine in the central loop of the human telomeric sequence stabilizes LREE induced G-quadruplex.
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Affiliation(s)
- Sampat N Satapathy
- DNA Nanotechnology & Application Laboratory, Environment & Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Partha S Nial
- DNA Nanotechnology & Application Laboratory, Environment & Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kiran D Tulsiyan
- School of Chemical Sciences, National Institute of Science Education & Research, Bhubaneswar 752050, India; Homi Bhabha National Institute, Mumbai 400094, India
| | - Umakanta Subudhi
- DNA Nanotechnology & Application Laboratory, Environment & Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar 751013, Odisha, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
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7
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Falandysz J, Nnorom IC, Mędyk M. Rare Earth Elements in Boletus edulis (King Bolete) Mushrooms from Lowland and Montane Areas in Poland. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:8948. [PMID: 35897319 PMCID: PMC9331855 DOI: 10.3390/ijerph19158948] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/03/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022]
Abstract
Mining/exploitation and commercial applications of the rare-earth elements (REEs: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in the past 3 decades have raised concerns about their emissions to the environment, possible accumulation in food webs, and occupational/environmental health effects. The occurrence and distribution of REEs Y and Sc in the fruitbodies of Boletus edulis collected from geographically diverse regions in Poland were studied in 14 composite samples that were derived from 261 whole fruiting bodies. Individual REE median concentrations ranged from 0.4-95 µg kg-1 dry weight (dw). The summed REE concentrations varied widely, with a median value of 310 µg kg-1 dw and a range of 87 to 758 µg kg-1. The Sc and Y median concentrations (dw) were 35 and 42 µg kg-1, respectively. Ce, La, and Nd, with median values of 95, 51, and 32 µg kg-1, respectively, showed the highest occurrence. B. edulis collected from a forested area formerly used as a military shooting range-possibly a historically contaminated site-had an elevated summed REE content of 1796 µg kg-1. REE concentrations were generally low in Polish King Bolete. Dietary intake from a mushroom meal was negligible, posing no health risk to consumers.
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Affiliation(s)
- Jerzy Falandysz
- Department of Toxicology, Faculty of Pharmacy, Medical University of Lodz, 1 Muszyńskiego Street, 90-151 Łódź, Poland
| | - Innocent Chidi Nnorom
- Analytical/Environmental Unit, Department of Pure and Industrial Chemistry, Abia State University, Uturu P.M.B. 2000, Nigeria;
| | - Małgorzata Mędyk
- Laboratory of Environmental Chemistry and Ecotoxicology, University of Gdańsk, 80-309 Gdańsk, Poland;
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8
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Yan L, Yang J, Yu M, Sun W, Han Y, Lu X, Jin C, Wu S, Cai Y. Lanthanum Impairs Learning and Memory by Activating Microglia in the Hippocampus of Mice. Biol Trace Elem Res 2022; 200:1640-1649. [PMID: 35178682 DOI: 10.1007/s12011-021-02637-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022]
Abstract
Lanthanum can induce neurotoxicity and impair cognitive function; therefore, research on the mechanism by which the ability to learning and memory is decreased by lanthanum is vitally important for protecting health. Microglia are a type of neuroglia located throughout the brain and spinal cord that play an important role in the central nervous system. When overactive, these cells can cause the excessive production of inflammatory cytokines that can damage neighboring neurons. The purpose of this study was to explore the effect of lanthanum in the form of lanthanum chloride (LaCl3) on learning and the memory of mice and determine whether there is a relationship between hippocampal neurons or learning and memory damage and excessive production of inflammatory cytokines. Four groups of pregnant Chinese Kun Ming mice were exposed to 0, 18, 36, or 72 mM LaCl3 in their drinking water during lactation. The offspring were then exposed to LaCl3 in the breast milk at birth until weaning and then exposed to these concentrations in their drinking water for 2 months after weaning. The results showed that LaCl3 impaired learning and memory in mice and injured their neurons, activated the microglia, and significantly overregulated the mRNA and protein expression of tumor necrosis factor alpha, interleukin (IL)-1β, IL-6, monocyte chemoattractant protein-1, and nitric oxide in the hippocampus. The results of this study suggest that lanthanum can impair learning and memory in mice, possibly by over-activating the microglia.
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Affiliation(s)
- Licheng Yan
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
- Department of Toxicology, School of Public Health, North China University of Science and Technology, No.21 Bohai road, Caofeidian New Area, Tangshan, 063210, Hebei province, People's Republic of China
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Miao Yu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Wenchang Sun
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Yarao Han
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China
| | - Yuan Cai
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe road, Shenyang North New Area, Shenyang, 110122, Liaoning province, People's Republic of China.
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Chen S, Liu J, Yan J, Wang C, Lu D. Dual In-Syringe Microextraction with Electrothermal Vaporization (ETV) Inductively Coupled Plasma–Mass Spectrometry (ICP–MS) for Determination of Rare Earth Elements (REEs) in Food. ANAL LETT 2022. [DOI: 10.1080/00032719.2021.2018595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shizhong Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Jinhong Liu
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Juntao Yan
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chunlei Wang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Dengbo Lu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
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Gao X, Yu M, Sun W, Han Y, Yang J, Lu X, Jin C, Wu S, Cai Y. Lanthanum chloride induces autophagy in primary cultured rat cortical neurons through Akt/mTOR and AMPK/mTOR signaling pathways. Food Chem Toxicol 2021; 158:112632. [PMID: 34688703 DOI: 10.1016/j.fct.2021.112632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 11/29/2022]
Abstract
Autophagy is a lysosome dependent degradation pathway occurring in eukaryotic cells. Autophagy ensures balance and survival mechanism of cells during harmful stress. Excessive or weak autophagy leads to abnormal function and death in some cases. Lanthanum (La), a rare earth element (REE), damages the central nervous system (CNS) and promotes learning and memory dysfunction. However, underlying mechanism has not been fully elucidated. La induces oxidative stress, inhibits Nrf2/ARE and Akt/mTOR signaling pathways, and activates JNK/c-Jun and JNK/Foxo signaling pathways, resulting in abnormal induction of autophagy in rat hippocampus. In addition, La activates PINK1- Parkin signaling pathway and induces mitochondrial autophagy. However, the relationship between La and autophagy in rat neurons at the cellular level has not been explored previously. The aim of this study was to explore adverse effects of La. Primary culture of rat neurons were exposed to 0 mmol/L, 0.025 mmol/L, 0.05 mmol/L and 0.1 mmol/L lanthanum chloride (LaCl3). The results showed that La upregulates p-AMPK, inhibits levels of p-Akt and p-mTOR, increases levels of autophagy related proteins (Beclin1 and LC3B-II), and downregulates expression of p-Bcl-2 and p62. Upstream and downstream intervention agents of autophagy were used to detect autophagy flux to verify accuracy of our results. Electron microscopy results showed significant increase in the number of autophagosomes in LaCl3 exposed groups. These findings imply that LaCl3 inhibits Akt/mTOR signaling pathway and activates AMPK/mTOR signaling pathway, resulting in abnormal autophagy in primary cultured rat cortical neurons. In addition, LaCl3 induces neuronal damage through excessive autophagy.
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Affiliation(s)
- Xiang Gao
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, No.209 Tongshan Road, Xuzhou, 221000, Jiangsu Province, People's Republic of China; Department of Biostatistics, School of Public Health, Xuzhou Medical University, No.209 Tongshan Road, Xuzhou, 221000, Jiangsu Province, People's Republic of China.
| | - Miao Yu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Wenchang Sun
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Yarao Han
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
| | - Yuan Cai
- Department of Toxicology, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning Province, People's Republic of China.
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11
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El Zrelli R, Baliteau JY, Yacoubi L, Castet S, Grégoire M, Fabre S, Sarazin V, Daconceicao L, Courjault-Radé P, Rabaoui L. Rare earth elements characterization associated to the phosphate fertilizer plants of Gabes (Tunisia, Central Mediterranean Sea): Geochemical properties and behavior, related economic losses, and potential hazards. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 791:148268. [PMID: 34139493 DOI: 10.1016/j.scitotenv.2021.148268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
This is the first study on the behavior and industrial fluxes of rare earth elements (REE) in the coastal fertilizer plants of Gabes (south-eastern Tunisia), the economic losses related to their wastes, and their environmental and human health hazards. The concentrations of 16 REE were assessed in phosphate rock (PR), phosphogypsum (PG) and phosphogypsum foam (PGF) samples, collected from Gabes plants. REE concentrations ranged from 0.23 (for Sc in PG) to 309.33 mg kg-1 (for Ce in PGF). Ce was the most abundant in the three matrices, with concentrations ranging between 80.40 (in PG) and 309.33 mg kg-1 (in PGF). PGF was the most enriched with REE (1075.32 mg kg-1). The annual flow of REE from the fertilizer factories to the marine environment may reach 1523.67 t. The economic losses related to the discharge of phosphogypsum REE in the Gulf of Gabes (GG) was estimated at ~58 million US$ y-1. The potential hazards of discharged REE on the local environment and human health were also evaluated and discussed. These findings show the need for the development of a new industry exploiting REE from phosphogypsum wastes (short term) and phosphate ores (long term) which should lead to reduce its high environmental and human health footprint and to potential economic gains.
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Affiliation(s)
| | | | | | - Sylvie Castet
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Michel Grégoire
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Sébastien Fabre
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Vivien Sarazin
- SADEF, 30 Rue de la Station, 68700 Aspach-Le-Bas, France
| | | | - Pierre Courjault-Radé
- Géosciences Environnement Toulouse (GET), Université de Toulouse, UMR 5563 CNRS/UPS/IRD/CNES, 14 Avenue Edouard Belin, 31400 Toulouse, France
| | - Lotfi Rabaoui
- Center for Environment & Marine Studies, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
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12
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Han G, Tan Z, Jing H, Ning J, Li Z, Gao S, Li G. Comet Assay Evaluation of Lanthanum Nitrate DNA Damage in C57-ras Transgenic Mice. Biol Trace Elem Res 2021; 199:3728-3736. [PMID: 33403576 DOI: 10.1007/s12011-020-02500-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/17/2020] [Indexed: 12/24/2022]
Abstract
Due to the wide application of rare-earth elements (REEs) in the last decades, lanthanum has increasingly entered the environment and has gradually accumulated in the human body through the food chain. Lanthanum is worth paying attention in terms of food safety. Although the genotoxicity of lanthanum has been studied in vitro, data on its DNA damage in vivo rodent are limited, moreover, which have also presented some controversy. This study aimed to conduct an in vivo rodent alkaline comet assay, and as a companion test to the lanthanum nitrate carcinogenicity test. We conducted an oral gavage experiment for 180 days (26 weeks) to test for the persistence of DNA damage of long-term low-dose accumulation of lanthanum nitrate (12.5, 25, and 50 mg/kg body weight), in F1 hybrid C57-ras transgenic mice (CB6F1) by using alkaline comet assay in the blood and liver. The comet assay revealed that all the tested concentrations of lanthanum nitrate did not induce DNA damage in any of the tissues investigated, whereas DNA damage was induced in the positive control group. These results could indicate that lanthanum nitrate can accumulate in tissues and organs of the mice after exposure, and does not possess DNA damage in C57-ras transgenic mice after repeated treatments at oral doses up to 50 mg/kg·BW for 26 weeks; also, it did not cause pathological changes in the liver of the mice.
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Affiliation(s)
- Gaochao Han
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
- School of Public Health, Capital Medical University, No. 10, West Toutiao, Youanmenwai, Fengtai District, Beijing, 100069, China
| | - Zhuangsheng Tan
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
| | - Haiming Jing
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
- School of Public Health, Capital Medical University, No. 10, West Toutiao, Youanmenwai, Fengtai District, Beijing, 100069, China
| | - Junyu Ning
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
- School of Public Health, Capital Medical University, No. 10, West Toutiao, Youanmenwai, Fengtai District, Beijing, 100069, China
| | - Zinan Li
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
- School of Public Health, Capital Medical University, No. 10, West Toutiao, Youanmenwai, Fengtai District, Beijing, 100069, China
| | - Shan Gao
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China
| | - Guojun Li
- Institute of Toxicology, Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine/Beijing Key Laboratory of Diagnostic and Traceablity Technologies for Food Poisoning, No. 16, Hepingli Middle Street, Dongcheng District, Beijing, 100013, China.
- School of Public Health, Capital Medical University, No. 10, West Toutiao, Youanmenwai, Fengtai District, Beijing, 100069, China.
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13
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Ferreira MDS, Fontes MPF, Bellato CR, Marques Neto JDO, Lima HN, Fendorf S. Geochemical signatures and natural background values of rare earth elements in soils of Brazilian Amazon. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 277:116743. [PMID: 33640811 DOI: 10.1016/j.envpol.2021.116743] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
Rare earth elements (REEs) are generally defined as a homogenous group of elements with similar physical-chemical properties, encompassing Y and Sc and the lanthanides elements series. Natural REEs contents in soils depend on the parent material, the soil genesis processes and can be gradually added to the soil by anthropogenic activities. The REEs have been considered emerging pollutants in several countries, so the establishment of regulatory guidelines is necessary to avoid environmental contamination. In Brazil, REE soils data are restricted to some regions, and knowledge about them in the Amazon soils is scarce, although this biome covers more than 40% of the Brazilian territory. Thus, the objectives of this study were to determine the REE content in soils of two hydrographic basins (Solimões and Rio Negro) of the Amazon biome, establish their Quality Reference Values (QRV) and to investigate the existence of enrichment of REEs in urban soils. The ΣREE(Y + Sc) content of Solimões surface samples was 109.28 mg kg-1 and the ΣREE(Y + Sc) content in the subsurface samples was 94.11 mg kg-1. In soils of Rio Negro basin, the ΣREE(Y + Sc) was 43.95 15 mg kg-1 surface samples and 38.40 mg kg-1 in subsurface samples. The ΣREE(Y + Sc) in urban topsoils samples was 38.62 mg kg-1. The REEs contents pattern in three studied areas are influenced in different amplitude by natural soil properties. The REEs content in urban topsoils were slightly higher than the Rio Negro pristine soils, but the ecological risk was low. QRVs recommend for Solimões soils ranged from 0.01 (Lu) to 145.6 mg kg-1 (Ce) and for Rio Negro soils ranged from 0.05 (Lu) to 15.8 mg kg-1 (Ce).
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Affiliation(s)
| | | | - Carlos Roberto Bellato
- Department of Chemistry, Federal University of Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil.
| | | | - Hedinaldo Narciso Lima
- Hedinaldo Narciso Lima, Department of Agricultural Engineering and Soils, Federal University of Amazonas, Manaus, Amazonas, 69080-900, Brazil.
| | - Scott Fendorf
- Scott Fendorf, Department of Earth System Science, Stanford University, Stanford, CA, 94305, USA.
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Kotelnikova A, Fastovets I, Rogova O, Volkov DS. La, Ce and Nd in the soil-plant system in a vegetation experiment with barley (Hordeum vulgare L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111193. [PMID: 32890924 DOI: 10.1016/j.ecoenv.2020.111193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 06/11/2023]
Abstract
Rare earth elements (REEs) have received enormous attention in recent years. However, there are many gaps in the understanding of their behavior in the soil-plant system. The aim of this study is to investigate the behavior of three most common REEs (La, Ce, Nd) in the soil-plant system directly on soil samples using barley (Hordeum vulgare L.) in a vegetation experiment. We attribute the absence of significant changes in plant biomass and photosynthetic pigment content to the reduced availability of REEs in soil samples. The concentration of water-soluble forms of La, Ce and Nd didn't exceed 1 mg/kg, while the concentration of exchangeable forms varied and decreased in a row La > Ce > Nd. The transfer factor (TF) from soil to above-ground biomass was low for all three elements (<1). The stem-to-leaf TF increased with the increase in REEs concentration in soil. The concentration in plant material increased in the row Ce < Nd < La. REEs concentrations in barley leaves didn't exceed 1-3% of the corresponding element concentration in soil samples. REEs concentration in plant tissues is in close direct correlation with the REEs total concentration in soil, water-soluble and exchange forms. REEs concentration in barley leaves is 3-4 times higher than in the stems and for the group with extraneous concentration of 200 mg/kg for La, Ce and Nd was 6.20 ± 1.48, 2.10 ± 0.51, 6.90 ± 3.00 mg/kg, respectively. We show that there were no major changes in barley plants, but further study is needed of the relationship between the absorption of lanthanides by plants and the content of various forms of lanthanides in the soil.
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Affiliation(s)
- Anna Kotelnikova
- Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhevsky per., 7/2, Moscow, 119017, Russia.
| | - Ilya Fastovets
- Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhevsky per., 7/2, Moscow, 119017, Russia.
| | - Olga Rogova
- Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhevsky per., 7/2, Moscow, 119017, Russia.
| | - Dmitry S Volkov
- Department of Chemistry and Physical Chemistry of Soils, V.V. Dokuchaev Soil Science Institute, Pyzhevsky per., 7/2, Moscow, 119017, Russia; Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory Ul., 1 Str. 3, Moscow, 119991, Russia.
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15
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Guo C, Wei Y, Yan L, Li Z, Qian Y, Liu H, Li Z, Li X, Wang Z, Wang J. Rare earth elements exposure and the alteration of the hormones in the hypothalamic-pituitary-thyroid (HPT) axis of the residents in an e-waste site: A cross-sectional study. CHEMOSPHERE 2020; 252:126488. [PMID: 32199167 DOI: 10.1016/j.chemosphere.2020.126488] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
Rare earth elements (REEs) are widely used in electronic products. But the contaminations of REEs in the e-waste sites and the related health effects were barely investigated. In the present study, we analyzed the concentrations of REEs and the hormones of the HPT axis in plasma of subjects recruited from an e-waste area and a reference area in Taizhou, China. The results showed that the concentrations of several REEs like La, Ce were much higher in the exposed group than in the control group (all p < 0.001). The thyroid hormones, FT3 and FT4, and TRH showed no significant difference between the two groups, while the concentration of TSH was significantly higher in the exposed group when compared to the control group (p = 0.002). Separate regression analysis indicated that elevated La and Ce levels were associated with higher TSH concentrations. MDA and 8-iso, the biomarkers of oxidative stress, were also significantly higher in the exposed group than that of the control group (p = 0.002 and p = 0.003, respectively). The increased oxidative stress might be the mechanism underlying the disruptive effects of REEs on TSH. Our results indicated that the quantities of internal exposure of REEs in the subjects in the e-waste area were considerable and the compositional profile of the REEs in the exposed group was different from the control group due to the e-waste dismantling. The expression of TSH were also affected by high La and Ce exposure which showed an endocrine disruption effects of REEs on HPT axis.
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Affiliation(s)
- Chen Guo
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, 100191, PR China
| | - Yongjie Wei
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Lailai Yan
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, 100191, PR China
| | - Zhigang Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yan Qian
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Huijie Liu
- Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100005, China
| | - Zhipeng Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Xiaoqian Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhanshan Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Jingyu Wang
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, 100191, PR China.
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16
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Sun W, Yang J, Hong Y, Yuan H, Wang J, Zhang Y, Lu X, Jin C, Wu S, Cai Y. Lanthanum Chloride Impairs Learning and Memory and Induces Dendritic Spine Abnormality by Down-Regulating Rac1/PAK Signaling Pathway in Hippocampus of Offspring Rats. Cell Mol Neurobiol 2020; 40:459-475. [PMID: 31776842 DOI: 10.1007/s10571-019-00748-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 10/17/2019] [Indexed: 12/20/2022]
Abstract
Lanthanum (La) is a natural rare earth element. It has neurotoxic effects which can impair learning and memory in humans. However, its mechanism of neurotoxicity is unclear. Learning and memory are coordinated by dendritic spines which form tiny protruding structures on the dendritic branches of neurons. This study investigated the effect of LaCl3 exposure to pregnant and lactating rats on the offspring rats' learning and memory ability. In this study, rats were divided into 4 groups and given distilled water solution containing 0%, 0.125%, 0.25%, 0.5% LaCl3, respectively, and this was done from conception to the end of the location. The effects of LaCl3 on spatial learning and memory ability in offspring rats and in the development of dendritic spines in CA1 pyramidal cells were investigated. The results showed that LaCl3 impaired spatial learning and memory ability in offspring rats, and decreased dendritic spine density during development. In addition, LaCl3 can affect the expression of CaMKII, miRNA132, p250GAP, Tiam1, PARD3, and down-regulated the activation of Rac1 which led to a decrease in the expression of Rac1/PAK signaling pathway and downstream regulatory proteins Cortactin and actin-related protein 2/3 complex (Arp2/3 complex). This study indicated that the learning and memory impairment and the decrease of dendritic spine density in the offspring of LaCl3 exposure may be related to the down-regulation of the Rac1/PAK signaling pathway regulated by Tiam1 and p250GAP.
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Affiliation(s)
- Wenchang Sun
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China.
| | - Yunting Hong
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Hui Yuan
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Jianbo Wang
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Yanqiang Zhang
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China
| | - Yuan Cai
- Department of Toxicology, School of Public Health, China Medical University, NO.77 Puhe Road, Shenyang North New Area, Shenyang, 110122, Liaoning, People's Republic of China.
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17
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Manousi N, Gomez-Gomez B, Madrid Y, Deliyanni E, Zachariadis G. Determination of rare earth elements by inductively coupled plasma-mass spectrometry after dispersive solid phase extraction with novel oxidized graphene oxide and optimization with response surface methodology and central composite design. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104428] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Samal RR, Mishra M, Subudhi U. Differential interaction of cerium chloride with bovine liver catalase: A computational and biophysical study. CHEMOSPHERE 2020; 239:124769. [PMID: 31526997 DOI: 10.1016/j.chemosphere.2019.124769] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 07/25/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
In this study, Cerium chloride-induced conformational changes of Bovine Liver Catalase (BLC) has been investigated by molecular docking and further supported by various biophysical techniques. The temporal change of catalytic activity of BLC has also been studied in presence of Ce(III) with different buffer solution in vitro at 25 °C. The differential binding of Ce(III) to BLC observed by simulation study was well supported by the differential regulation of BLC activity in different buffers. After 1 h of incubation with CeCl3, the reduction in activity of BLC was maximum in MOPS, HEPES and Tris buffer, whereas no change in activity was noticed in phosphate buffer. Isothermal Titration Calorimetric (ITC) study also supports the differential binding of Ce(III) to BLC in different buffers. Ce(III)-induced conformational transition in BLC was followed as a function of concentration. Nevertheless, with 24 h incubation of CeCl3 the activity of BLC was highest with higher molar concentration of CeCl3 suggesting the conformational stability of BLC in presence of Ce(III). The compromised activity of BLC in response to Ce(III) is due to the induced conformational change and the degree of change in secondary conformation of BLC was maximum in MOPS, HEPES and Tris and least in phosphate buffer. Therefore, the reduced activity of BLC is controlled by the direct interaction of Ce(III) in the active site of BLC in Tris buffer or indirect interaction of Ce(III) in the non-active site of BLC in MOPS and HEPES buffer.
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Affiliation(s)
- Rashmi R Samal
- CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751 013, India; Academy of Scientific & Innovative Research (AcSIR), New Delhi, 110025, India
| | - Madhusmita Mishra
- CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751 013, India
| | - Umakanta Subudhi
- CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751 013, India; Academy of Scientific & Innovative Research (AcSIR), New Delhi, 110025, India.
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19
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Xiao X, Yong L, Liu D, Yang H, Liang C, Jia X, Liu Z, Song Y. Effects of in utero exposure to lanthanum on neurological behavior in rat offspring. Neurotoxicol Teratol 2019; 77:106854. [PMID: 31891752 DOI: 10.1016/j.ntt.2019.106854] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 12/13/2019] [Accepted: 12/23/2019] [Indexed: 10/25/2022]
Abstract
The increasing use of rare-earth elements in various fields has raised concern from public heath perspective regarding their accumulation in human body. Long-term exposure to lanthanum, one of the frequently used rare-earth elements in biomedicine and agriculture, has been previously shown to exert neurotoxicity during development in rats; however, the effects of short-term exposure to lanthanum during gestation on neurobehavioral development in rat offspring is still not clear. The purpose of this study is to investigate the effects of intrauterine exposure to lanthanum on neurobehavioral development in rat offspring. Dams were orally exposed to 0, 2, 20, & 60 mg/kg BW of lanthanum nitrate from gestation day 7 to day 16. Morris water maze test, hindlimb strength test, nociceptive perception test, and grip strength test were conducted during postnatal day 61 to 66 in rat offspring. Blood lanthanum concentration and plasma neurotransmitters were measured after sacrifice. The results showed that intrauterine exposure to lanthanum nitrate significantly impaired memory and spatial learning in Morris water maze test. Lanthanum treatment dose-dependently increased blood lanthanum concentration in dams and pups. Lanthanum treatment significantly decreased hindlimb and grip strength and increased delay time in nociceptive response. Plasma neurotransmitter results showed that lanthanum treatment significantly decreased the level of acetylcholine and serotonin while increased the level of glutamate in rat offspring. These results suggest that short-term in utero exposure to lanthanum has potential adverse effects on neurodevelopment in rat offspring.
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Affiliation(s)
- Xiao Xiao
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Ling Yong
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Dandan Liu
- Beijing Mentougou Center for Disease Control and Prevention, Beijing, 102300, China
| | - Hui Yang
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Chunlai Liang
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Xudong Jia
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Zhaoping Liu
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China
| | - Yan Song
- Key Laboratory of Food Safety Risk Assessment, National Health Commission of the People's Republic of China (China National Center for Food Safety Risk Assessment), Beijing, 100022, China.
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20
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Li FK, Gong AJ, Qiu LN, Zhang WW, Li JR, Liu Y, Li JD, Gao G, Yuan XT. Determination of trace rare earth elements in fruits by microwave digestion coupled with inductively coupled plasma optical emission spectrometry. Microchem J 2019. [DOI: 10.1016/j.microc.2019.02.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Chen S, Yan J, Li J, Lu D. Magnetic ZnFe2O4 nanotubes for dispersive micro solid-phase extraction of trace rare earth elements prior to their determination by ICP-MS. Mikrochim Acta 2019; 186:228. [DOI: 10.1007/s00604-019-3342-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 02/27/2019] [Indexed: 12/12/2022]
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22
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Gao X, Yang J, Li Y, Yu M, Liu S, Han Y, Lu X, Jin C, Wu S, Cai Y. Lanthanum chloride induces autophagy in rat hippocampus through ROS-mediated JNK and AKT/mTOR signaling pathways. Metallomics 2019; 11:439-453. [DOI: 10.1039/c8mt00295a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Lanthanum (La) can cause central nervous system damage in rats and lead to learning and memory impairment, but the relevant mechanisms have not been fully elucidated.
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23
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Yuan M, Liu C, Liu WS, Guo MN, Morel JL, Huot H, Yu HJ, Tang YT, Qiu RL. Accumulation and fractionation of rare earth elements (REEs) in the naturally grown Phytolacca americana L. in southern China. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2018; 20:415-423. [PMID: 29608375 DOI: 10.1080/15226514.2017.1365336] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The widespread use of rare earth elements (REEs) has resulted in problems for soil and human health. Phytolacca americana L. is a herbaceous plant widely distributed in Dingnan county of Jiangxi province, China, which is a REE mining region (ion absorption rare earth mine) and the soil has high levels of REEs. An investigation of REE content of P. americana growing naturally in Dingnan county was conducted. REE concentrations in the roots, stems, and leaves of P. americana and in their rhizospheric soils were determined. Results showed that plant REEs concentrations varied among the sampling sites and can reach 1040 mg/kg in the leaves. Plant REEs concentrations decreased in the order of leaf > root > stem and all tissues were characterized by a light REE enrichment and a heavy REE depletion. However, P. americana exhibited preferential accumulation of light REEs during the absorption process (from soil to root) and preferential accumulation of heavy REEs during the translocation process (from stem to leaf). The ability of P. americana to accumulate high REEs in the shoot makes it a potential candidate for understanding the absorption mechanisms of REEs and for the phytoremediation of REEs contaminated soil.
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Affiliation(s)
- Ming Yuan
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Chang Liu
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Wen-Shen Liu
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Mei-Na Guo
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Jean Louis Morel
- c Laboratoire Sols et Environnement, INRA, Universitéde Lorraine , BP 172, 2 avenue de la forê t de Haye, Vandoeuvre-lè s-Nancy Cedex , France
| | - Hermine Huot
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Hong-Jie Yu
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
| | - Ye-Tao Tang
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
- b Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology , Guangzhou , P. R. China
| | - Rong-Liang Qiu
- a School of Environmental Science and Engineering, Sun Yat-sen University , Guangzhou , P. R. China
- b Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology , Guangzhou , P. R. China
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Liu C, Yuan M, Liu WS, Guo MN, Huot H, Tang YT, Laubie B, Simonnot MO, Morel JL, Qiu RL. Element Case Studies: Rare Earth Elements. AGROMINING: FARMING FOR METALS 2018. [DOI: 10.1007/978-3-319-61899-9_19] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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25
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Jin C, Gao L, Li Y, Wu S, Lu X, Yang J, Cai Y. Lanthanum damages learning and memory and suppresses astrocyte–neuron lactate shuttle in rat hippocampus. Exp Brain Res 2017; 235:3817-3832. [DOI: 10.1007/s00221-017-5102-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 10/03/2017] [Indexed: 12/26/2022]
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26
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Distribution of rare earth elements in agricultural soil and human body (scalp hair and urine) near smelting and mining areas of Hezhang, China. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60148-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Huang Y, Wu X, Tian T, Zhu Z, Lin H, Yang C. Target-responsive DNAzyme hydrogel for portable colorimetric detection of lanthanide(III) ions. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0242-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Bai J, Zhang Z, Liu M, Li C. α-synuclein-lanthanide metal ions interaction: binding sites, conformation and fibrillation. BMC BIOPHYSICS 2016; 9:1. [PMID: 26843956 PMCID: PMC4739322 DOI: 10.1186/s13628-016-0026-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 01/15/2016] [Indexed: 08/30/2023]
Abstract
BACKGROUND The pathological hallmark of Parkinson's disease is the deposition of cytoplasmic neuronal inclusions termed Lewy bodies. The major component of Lewy bodies is amyloid fibrils of α-synuclein. To investigate what causes α-synuclein aggregation is essential to understand its pathological roles in Parkinson's disease. Various metal ions, including iron and copper, have been implicated in the pathogenesis of Parkinson's disease. Divalent metal ions can regulate α-synuclein fibrillation rate, however, few studies have been performed to investigate how trivalent metal ions interact with α-synuclein and their effect on α-synuclein fibrillation. The study of the interaction between divalent and trivalent metal ions with α-synuclein is of vital importance to realize the mechanism of α-synuclein fibrillation. RESULTS Here we used nuclear magnetic resonance spectroscopy to determine the trivalent metal ions (lanthanides) binding sites in α-synuclein. We found that lanthanide metal ions not only bind non-specifically to the C-terminal domain of α-synuclein, but also transiently interact with residues contain carboxyl groups in the N-terminal and NAC regions, the latter binding sites were not found for divalent cations. In addition, lanthanide ions bound α-synuclein exhibits slower conformational exchange rate. Compare to divalent cations, lanthanide ions accelerate α-synuclein fibrillation much faster. CONCLUSIONS We identified the lanthanide metal ions binding sites in α-synuclein and found a hierarchal effect for lanthanide ions binding to α-synuclein, driven by the interaction with aspartic acids and glutamic acids residues. Lanthanide ions binding also induced conformational dynamics change of α-synuclein. Compared to divalent cations, lanthanide metal ions significantly accelerated α-synuclein fibrillation, possibly due to the different inherent properties such as charge, binding sites and coordination modes.
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Affiliation(s)
- Jia Bai
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center of Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071 P.R. China ; University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Zeting Zhang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center of Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071 P.R. China
| | - Maili Liu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center of Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071 P.R. China
| | - Conggang Li
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center of Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071 P.R. China
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29
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Chen Q, Zuo J, Chen J, Tong P, Mo X, Zhang L, Li J. A label-free fluorescent biosensor for ultratrace detection of terbium (ш) based on structural conversion of G-quadruplex DNA mediated by ThT and terbium (ш). Biosens Bioelectron 2015; 72:326-31. [DOI: 10.1016/j.bios.2015.04.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 04/02/2015] [Accepted: 04/13/2015] [Indexed: 10/23/2022]
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Wu M, Gao JL, Sun MX, Zhang YZ, Liu Y, Dai J. Effects of La(III) and Ca(II) on isolated Carassius auratus liver mitochondria: heat production and mitochondrial permeability transition. Biol Trace Elem Res 2015; 163:217-23. [PMID: 25416531 DOI: 10.1007/s12011-014-0178-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 11/09/2014] [Indexed: 01/18/2023]
Abstract
The effects of lanthanum and calcium on heat production of mitochondria isolated from Carassius auratus liver were investigated by microcalorimetry, and their effects on mitochondrial swelling and membrane potential (Δψ) were determined by spectroscopic methods. La(3+) showed only inhibitory action on mitochondrial energy turnover with inhibition concentration of 50 % (IC50) being 71.2 μmol L(-1). Similarly, Ca(2+) restrained the heat production of mitochondria, and the IC50 of Ca(2+) was much higher than that of La(3+). In the spectroscopic experiments, La(3+) and Ca(2+) induced fish liver mitochondrial swelling and decreased membrane potential (Δψ), and the induction ability of La(3+) was stronger than that of Ca(2+). It is concluded that the effects of La(3+) and Ca(2+) on fish liver mitochondria differ, and La represents toxic action rather than Ca analogy.
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Affiliation(s)
- Man Wu
- College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou, Hubei, 434023, People's Republic of China
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31
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Sang X, Ze X, Gui S, Wang X, Hong J, Ze Y, Zhao X, Sheng L, Sun Q, Yu X, Wang L, Hong F. Kidney injury and alterations of inflammatory cytokine expressions in mice following long-term exposure to cerium chloride. ENVIRONMENTAL TOXICOLOGY 2014; 29:1420-1427. [PMID: 23712967 DOI: 10.1002/tox.21872] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 06/02/2023]
Abstract
It has been demonstrated that the organic damages of animals can be caused by exposure to lanthanide oxides or compounds. However, the molecular mechanism of CeCl3 -induced kidney injury remains unclear. In this study, the mechanism of nephric damage in mice induced by an intragastric administration of CeCl3 was investigated. The results showed that Ce(3+) was accumulated in the kidney, which in turn led to oxidative stress, severe nephric inflammation, and dysfunction in mice. Furthermore, CeCl3 activated nucleic factor κB, which in turn increased the expression levels of tumor necrosis factor α, macrophage migration inhibitory factor, interleukin-2, interleukin-4, interleukin-6, interleukin-8, interleukin-10, interleukin-18, interleukin-1β, cross-reaction protein, transforming growth factor-β, interferon-γ, and CYP1A1, while suppressed heat shock protein 70 expression. These findings implied that Ce(3+) -induced kidney injury of mice might be associated with oxidative stress, alteration of inflammatory cytokine expression, and reduction of detoxification of CeCl3 .
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Affiliation(s)
- Xuezi Sang
- Medical College of Soochow University, Suzhou, 215123, China
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32
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Hong J, Yu X, Pan X, Zhao X, Sheng L, Sang X, Lin A, Zhang C, Zhao Y, Gui S, Sun Q, Wang L, Hong F. Pulmonary toxicity in mice following exposure to cerium chloride. Biol Trace Elem Res 2014; 159:269-77. [PMID: 24736977 DOI: 10.1007/s12011-014-9953-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 03/19/2014] [Indexed: 12/27/2022]
Abstract
The widespread application of lanthanoids (Lns) in manufacturing industries has raised occupational and environmental health concerns about the possible increased health risks to humans exposed to Lns in their working and living environments. Numerous studies have shown that exposures to Ln cause pulmonary injury in animals, but very little is known about the molecular mechanisms of the pulmonary inflammation caused by cerium chloride (CeCl3) exposure. In this study, we evaluated the oxidative stress and molecular mechanism underlying with the pulmonary inflammation associated with chronic lung toxicity in mice treated with nasally instilled CeCl3 for 90 consecutive days. Our findings suggest that significant cerium accumulated in the lung, leading the obvious increase of the lung indices, significant increases in inflammatory cells and levels of lactate dehydrogenase, alkaline phosphate, and total protein, overproduction of reactive oxygen species and peroxidation of lipids, reduced antioxidant capacity, and pulmonary inflammation. CeCl3 exposure also activated nuclear factor κB, increased the expression of tumor necrosis factor α, cyclooxygenase-2, heme oxygenase 1, interleukin 2, interleukin 4, interleukin 6, interleukin 8, interleukin 10, interleukin 18, interleukin 1β, and CYP1A1. However, CeCl3 reduced the expression of nuclear factor κB (NF-κB)-inhibiting factor and heat shock protein 70. These findings suggest that the pulmonary inflammation caused by CeCl3 in mice is closely associated with oxidative stress and inflammatory cytokine expression.
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Affiliation(s)
- Jie Hong
- Medical College of Soochow University, Suzhou, 215123, China
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33
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Su S, Chen B, He M, Hu B, Xiao Z. Determination of trace/ultratrace rare earth elements in environmental samples by ICP-MS after magnetic solid phase extraction with Fe3O4@SiO2@polyaniline–graphene oxide composite. Talanta 2014; 119:458-66. [DOI: 10.1016/j.talanta.2013.11.027] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 10/31/2013] [Accepted: 11/07/2013] [Indexed: 11/26/2022]
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34
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Cheng J, Cheng Z, Hu R, Cui Y, Cai J, Li N, Gui S, Sang X, Sun Q, Wang L, Hong F. Immune dysfunction and liver damage of mice following exposure to lanthanoids. ENVIRONMENTAL TOXICOLOGY 2014; 29:64-73. [PMID: 21928445 DOI: 10.1002/tox.20773] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2011] [Revised: 08/19/2011] [Accepted: 08/24/2011] [Indexed: 05/31/2023]
Abstract
In an effort to investigate the effects of exposure to lanthanoids (Ln) on the immune response and liver function, mice were orally exposed to LaCl3 , CeCl3 , and NdCl3 at 2, 10, and 20 mg/kg doses for 30 days, respectively; lymphocyte counts, serum IgM level, hematological indices, biochemical parameters of liver functions, and histopathological changes in Ln(3+) -treated mice were assessed. Indeed, 20 mg/kg Ln(3+) significantly inhibited mice growth and reduced the counts of white blood cells, platelets, and reticulocyte in mice blood. Specifically, in these Ln(3+) -treated mice, CD3+, CD4+, CD8+, CD19+ and NK cells, and CD4+/CD8+ ratio as well as serum IgM level were decreased. Furthermore, liver function was disrupted, as evidenced by the increased alanine aminotransferase, total bilirubin, total bile acid and triglycerides, and the decreased glucose and ratio of albumin to globulin. The cytoarchitecture damage and fatty degeneration in liver caused by Ln(3+) at 20 mg/kg dose were also observed. Our findings showed that exposure to Ln affected the cell and humoral immunity and disturbed liver function in mice. In addition, Ce(3+) was found to exhibit higher toxicity than La(3+) and Nd(3+).
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Affiliation(s)
- Jie Cheng
- Medical College, Soochow University, Suzhou 215123, People's Republic of China
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35
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Li X, Chen Z, Chen Z, Zhang Y. A human health risk assessment of rare earth elements in soil and vegetables from a mining area in Fujian Province, Southeast China. CHEMOSPHERE 2013; 93:1240-6. [PMID: 23891580 DOI: 10.1016/j.chemosphere.2013.06.085] [Citation(s) in RCA: 211] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 06/17/2013] [Accepted: 06/29/2013] [Indexed: 05/23/2023]
Abstract
Contaminated food through dietary intake has become the main potential risk impacts on human health. This study investigated concentrations of rare earth elements (REEs) in soil, vegetables, human hair and blood, and assessed human health risk through vegetables consumption in the vicinity of a large-scale mining area located in Hetian Town of Changting County, Fujian Province, Southeast China. The results of the study included the following mean concentrations for total and bio-available REEs of 242.92 ± 68.98 (135.85-327.56)μg g(-1) and 118.59 ± 38.49 (57.89-158.96)μg g(-1) dry weight (dw) in agricultural soil, respectively, and total REEs of 3.58 ± 5.28 (0.07-64.42)μg g(-1) dw in vegetable samples. Concentrations of total REEs in blood and hair collected from the local residents ranged from 424.76 to 1274.80 μg L(-1) with an average of 689.74 ± 254.25 μg L(-1) and from 0.06 to 1.59 μg g(-1) with an average of 0.48 ± 0.59 μg g(-1) of the study, respectively. In addition, a significant correlation was observed between REEs in blood and corresponding soil samples (R(2)=0.6556, p<0.05), however there was no correlation between REEs in hair and corresponding soils (p>0.05). Mean concentrations of REEs of 2.85 (0.59-10.24)μg L(-1) in well water from the local households was 53-fold than that in the drinking water of Fuzhou city (0.054 μg L(-1)). The health risk assessment indicated that vegetable consumption would not result in exceeding the safe values of estimate daily intake (EDI) REEs (100-110 μg kg(-1)d(-1)) for adults and children, but attention should be paid to monitoring human beings health in such rare earth mining areas due to long-term exposure to high dose REEs from food consumptions.
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Affiliation(s)
- Xiaofei Li
- State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fujian Normal University, Fuzhou 350007, PR China; College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, PR China.
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36
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Chen S, Zhu S, Lu D. Titanium dioxide nanotubes as solid-phase extraction adsorbent for on-line preconcentration and determination of trace rare earth elements by inductively coupled plasma mass spectrometry. Microchem J 2013. [DOI: 10.1016/j.microc.2013.02.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Yang J, Liu Q, Qi M, Lu S, Wu S, Xi Q, Cai Y. Lanthanum chloride promotes mitochondrial apoptotic pathway in primary cultured rat astrocytes. ENVIRONMENTAL TOXICOLOGY 2013; 28:489-497. [PMID: 21793157 DOI: 10.1002/tox.20738] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 03/23/2011] [Accepted: 04/30/2011] [Indexed: 05/31/2023]
Abstract
Population surveys and animal experiments have shown that rare earth elements (REEs) cause neurological defects. However, the detailed mechanisms underlying these effects are still unclear. Given that lanthanum is commonly used for investigating into REEs-induced neurological defects, this study chose lanthanum chloride (LaCl3 ) to show that LaCl3 promotes mitochondrial apoptotic pathway in primary cultured rat astrocytes by regulating expression of Bcl-2 family proteins. The main findings of this study are (1) LaCl3 treatment (0.25, 0.5, and 1.0 mM for 12-48 h) induced the astrocytes damages with a concentration-dependent manner, which were confirmed with methyl thiazolyl tetrazolium and lactate dehydrogenase release assays, and morphological examination. (2) A 24 h treatment of LaCl3 concentration-dependently decreased mitochondrial membrane potential, increased cytochrome c release from mitochondria into cytosol, elevated caspase 9 and 3 expression, and promoted astrocyte apoptosis. (3) LaCl3 treatment increased the ratio of pro-apoptotic Bax and antiapoptotic Bcl-2 proteins, which in turn broke the balance among pro-apoptotic and antiapoptotic Bcl-2 family proteins, leading to astrocyte apoptosis. Our results indicate that LaCl3 alters Bcl-2 family protein expressions, which in turn promote mitochondrial apoptotic pathway, and thus astrocytic damage.
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Affiliation(s)
- Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, Shenyang, China
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38
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Cheng Z, Zhao H, Ze Y, Su J, Li B, Sheng L, Zhu L, Guan N, Gui S, Sang X, Zhao X, Sun Q, Wang L, Cheng J, Hu R, Hong F. Gene-expression changes in cerium chloride-induced injury of mouse hippocampus. PLoS One 2013; 8:e60092. [PMID: 23573234 PMCID: PMC3616000 DOI: 10.1371/journal.pone.0060092] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 02/19/2013] [Indexed: 12/27/2022] Open
Abstract
Cerium is widely used in many aspects of modern society, including agriculture, industry and medicine. It has been demonstrated to enter the ecological environment, is then transferred to humans through food chains, and causes toxic actions in several organs including the brain of animals. However, the neurotoxic molecular mechanisms are not clearly understood. In this study, mice were exposed to 0.5, 1, and 2 mg/kg BW cerium chloride (CeCl(3)) for 90 consecutive days, and their learning and memory ability as well as hippocampal gene expression profile were investigated. Our findings suggested that exposure to CeCl(3) led to hippocampal lesions, apoptosis, oxidative stress and impairment of spatial recognition memory. Furthermore, microarray data showed marked alterations in the expression of 154 genes involved in learning and memory, immunity and inflammation, signal transduction, apoptosis and response to stress in the 2 mg/kg CeCl(3) exposed hippocampi. Specifically, the significant up-regulation of Axud1, Cdc37, and Ube2v1 caused severe apoptosis, and great suppression of Adcy8, Fos, and Slc5a7 expression led to impairment of mouse cognitive ability. Therefore, Axud1, Cdc37, Ube2v1, Adcy8, Fos, and Slc5a7 may be potential biomarkers of hippocampal toxicity caused by CeCl3 exposure.
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Affiliation(s)
- Zhe Cheng
- Medical College of Soochow University, Suzhou, P. R. China
| | - Haiquan Zhao
- Medical College of Soochow University, Suzhou, P. R. China
- College of Life Sciences, Anhui Agriculture University, Hefei, P. R. China
| | - Yuguan Ze
- Medical College of Soochow University, Suzhou, P. R. China
| | - Junju Su
- Medical College of Soochow University, Suzhou, P. R. China
| | - Bing Li
- Medical College of Soochow University, Suzhou, P. R. China
| | - Lei Sheng
- Medical College of Soochow University, Suzhou, P. R. China
| | - Liyuan Zhu
- Medical College of Soochow University, Suzhou, P. R. China
| | - Ning Guan
- Medical College of Soochow University, Suzhou, P. R. China
| | - Suxin Gui
- Medical College of Soochow University, Suzhou, P. R. China
| | - Xuezi Sang
- Medical College of Soochow University, Suzhou, P. R. China
| | - Xiaoyang Zhao
- Medical College of Soochow University, Suzhou, P. R. China
| | - Qingqing Sun
- Medical College of Soochow University, Suzhou, P. R. China
| | - Ling Wang
- Medical College of Soochow University, Suzhou, P. R. China
| | - Jie Cheng
- Medical College of Soochow University, Suzhou, P. R. China
| | - Renping Hu
- Medical College of Soochow University, Suzhou, P. R. China
| | - Fashui Hong
- Medical College of Soochow University, Suzhou, P. R. China
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Ghoreishi SM, Behpour M, Mazaheri S, Motaghedifard M. High Sensitive Sensor Based on Carbon Nanotube Electrode for Determination of Lanthanum in the Presence of Calcon Carboxylic Acid. ANAL LETT 2013. [DOI: 10.1080/00032719.2012.709894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Cheng Z, Li N, Cheng J, Hu R, Gao G, Cui Y, Gong X, Wang L, Hong F. Signal pathway of hippocampal apoptosis and cognitive impairment of mice caused by cerium chloride. ENVIRONMENTAL TOXICOLOGY 2012; 27:707-18. [PMID: 21384496 DOI: 10.1002/tox.20696] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2010] [Revised: 12/20/2010] [Accepted: 12/27/2010] [Indexed: 05/23/2023]
Abstract
Experimental studies have demonstrated that lanthanides could impair cognitive functions of children and animals, but very little is known about the hippocampal apoptosis and its molecular mechanism. The study investigated the signal pathway of hippocampal apoptosis induced by intragastric administration of CeCl(3) for 60 consecutive days. It showed that cerium had been significantly accumulated in the mouse hippocampus, and CeCl(3) caused hippocampal apoptosis and impairment of spatial recognition memory of mice. CeCl(3) effectively activated caspase-3 and -9, inhibited Bcl-2, and increased the levels of Bax and cytochrome c, promoted accumulation of reactive oxygen species in the mouse hippocampus. It implied that CeCl(3)-induced apoptosis in the mouse hippocampus could be triggered via mitochondrion-mediated pathway. Our findings suggest the need for great caution to handle the lanthanides for workers and consumers.
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Affiliation(s)
- Zhe Cheng
- Medical College, Soochow University, Suzhou 215123, People's Republic of China
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Effects of lanthanum chloride on glutamate level, intracellular calcium concentration and caspases expression in the rat hippocampus. Biometals 2012; 26:43-59. [DOI: 10.1007/s10534-012-9593-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 10/13/2012] [Indexed: 01/23/2023]
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42
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Wu B, Zhang D, Wang D, Qi C, Li Z. The potential toxic effects of cerium on organism: cerium prolonged the developmental time and induced the expression of Hsp70 and apoptosis in Drosophila melanogaster. ECOTOXICOLOGY (LONDON, ENGLAND) 2012; 21:2068-2077. [PMID: 22707041 DOI: 10.1007/s10646-012-0960-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/05/2012] [Indexed: 06/01/2023]
Abstract
Due to the widespread application of cerium, a rare earth element, the risk of exposure to cerium has increased. Therefore, understanding the physiological effects of cerium is of great importance. Our previous work showed that cerium caused significant lifespan shortening accompanied by oxidative damage in Drosophila melanogaster, however, little is known about the detailed mechanism of cerium-induced cytotoxicity. Thus, we examined the developmental time during metamorphosis, and assessed the toxic effects of cerium by evaluating heat shock protein 70 (Hsp70), DNA damage markers and apoptosis in D. melanogaster. We found that cerium extended the developmental time of D. melanogaster and up-regulated the expression of Hsp70 when the concentration of cerium was increased (especially concentrations over 26.3 μg/g). Up-regulation of the cell cycle checkpoint p53 and cell signaling protein p38 were also observed when the concentration of cerium was over 104 μg/g. In addition, the activities of caspase-3 and caspase-9, markers of apoptosis, were significantly higher when the larvae were exposed to ceric sulfate. These results suggest that high concentrations of cerium may result in DNA damage and ultimately apoptosis in D. melanogaster, and strongly indicate that cerium should be applied with caution and the potential toxic effects in humans should also be taken into consideration.
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Affiliation(s)
- Bin Wu
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, No. 101 Shanghai Road, Xuzhou, 221116, Jiangsu, China.
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Hao S, Yu F, Yan A, Zhang Y, Han J, Jiang X. In utero and lactational lanthanum exposure induces olfactory dysfunction associated with downregulation of βIII-tubulin and olfactory marker protein in young rats. Biol Trace Elem Res 2012; 148:383-91. [PMID: 22407468 DOI: 10.1007/s12011-012-9386-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
Abstract
We evaluated the role of βIII-tubulin in the morphology of olfactory receptor neuron (ORN) and olfactory dysfunction in offspring caused by prenatal and postnatal lanthanum exposure. Pregnant rats were exposed to 0.25% lanthanum chloride in drinking water from gestational day (GD) 7 until postnatal day 21. From postnatal day 23 until postnatal day 28, pups were examined with buried food pellet and olfactory maze test. The ultrastructural features of ORNs in the olfactory epithelium (OE) were observed by transmission electron microscope. The expression of βIII-tubulin and olfactory marker protein (OMP) in the tissue sections and homogenates of OE were, respectively, measured by immunodetection and western blot. Behavioral analysis of olfaction showed that lanthanum chloride exposure induced olfactory dysfunction. Offsprings exposed to lanthanum chloride showed enlarged ORN knobs and a decreased number of cilia. In addition, the levels of OMP and βIII-tubulin expression in lanthanum chloride exposure offsprings significantly decreased. Developmental lanthanum exposure could impair olfaction, and this deficit may be attributed to the downregulation of βIII-tubulin and OMP in the OE.
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Affiliation(s)
- Shuai Hao
- Department of Otolaryngology, First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, Liaoning 110001, People's Republic of China
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Li Y, Yang JL, Jiang Y. Trace rare earth element detection in food and agricultural products based on flow injection walnut shell packed microcolumn preconcentration coupled with inductively coupled plasma mass spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:3033-3041. [PMID: 22390234 DOI: 10.1021/jf2049646] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With the extensive use of rare earth elements (REEs) in agriculture as fertilizer and feed additives, the concentration of REEs has increased in environmental and biological samples and finally impaired human health by food chain accumulation. The determination of trace REEs has gained considerable importance because of their toxicity and increasing occurrence. In this work, walnut shell has been used as the green adsorbent in online preconcentration and detection of REEs in food and agricultural products coupled with inductively coupled plasma mass spectrometry (ICP-MS). Because of the porous surface and abundant -COO(-) groups on the walnut shell surface, the walnut shell-packed microcolumn provides high adsorption efficiency and high tolerable capacity for coexisting ions. Under the optimized conditions, the adsorption efficiency of the walnut shell packed microcolumn was as high as 98.9% for 15 REEs, and the tolerable concentration ratios were between 2000 and 80,000,000 for 37 kinds of coexisting interfering ions. The enhancement factors achieved were 79-102 for 15 REEs with a sample loading volume of 4.7 mL. The detection limits were in the range of 2-34 pg g(-1). The relative standard deviation for 11 replicate preconcentrations of 2.5 ng L(-1) REEs solution ranged from 0.5 to 2.0%. The present method was successfully applied to selective determination of REEs in 4 environmental and biological certified reference materials and 18 locally collected food and agricultural products.
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Affiliation(s)
- Yan Li
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University, 393 Binshui West Road, Tianjin 300387, China.
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Zhao H, Cheng J, Cai J, Cheng Z, Cui Y, Gao G, Hu R, Gong X, Wang L, Hong F. Liver injury and its molecular mechanisms in mice caused by exposure to cerium chloride. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2012; 62:154-64. [PMID: 21503700 DOI: 10.1007/s00244-011-9672-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Accepted: 04/04/2011] [Indexed: 05/23/2023]
Abstract
Cerium has been demonstrated to damage liver of mice, but very little is known about the molecular mechanisms underlying the mouse liver apoptosis. In order to understand the liver injury induced by intragastric administration of cerium chloride (CeCl3) for 60 consecutive days, the hepatocyte ultrasrtucture, various oxidative stress parameters, and the stress-related gene expression levels were investigated for the mouse liver. The results demonstrated that CeCl3 had an obvious accumulation in the mouse liver, leading to a classical laddering cleavage of DNA and hepatocyte apoptosis. CeCl3 significantly promoted the accumulation of reactive oxygen species and inhibited the stress-related gene expression of superoxide dismutase, catalase, glutathione peroxidase, metallothionein, heat-shock protein 70, glutathione-S-transferase, P53, and transferring, and it effectively activated the cytochrome p450 1A. It implied that CeCl3 resulted in apoptosis and alteration of expression levels of the genes related with metal detoxification/metabolism regulation and radical scavenging action in mice.
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Affiliation(s)
- Haiquan Zhao
- Medical College of Soochow University, Suzhou, 215123, People's Republic of China
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Zhao H, Cheng Z, Cheng J, Hu R, Che Y, Cui Y, Wang L, Hong F. The toxicological effects in brain of mice following exposure to cerium chloride. Biol Trace Elem Res 2011; 144:872-84. [PMID: 21465281 DOI: 10.1007/s12011-011-9045-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Accepted: 03/21/2011] [Indexed: 12/01/2022]
Abstract
Cerium (Ce) compounds are now widely applied in medicine, agriculture, animal breeding, and daily life; however, the effects of Ce on human body, especially on the central nervous system, are still unclear. In order to investigate whether Ce exposure cause neurotoxicological effects, ICR mice were exposed to CeCl(3) through intragastric administration at 0, 2, 10, and 20 mg/kg body weight doses everyday for 60 days. The behaviors of spatial recognition memory, brain histopathology, the brain elements and neurochemicals, as well as enzymes activities in mice were determined. The Y-maze test showed that CeCl(3) exposure could significantly impair the behaviors of spatial recognition memory. Specifically, in these Ln(3+)-treated mice, the contents of Ca, Mg, Na, K, Fe, and Zn in brain were significantly altered, the activities of Na(+)/K(+)-ATPase, Ca(2+)-ATPase, Ca(2+)/Mg(2+)-ATPase, acetylcholine esterase, and nitric oxide synthase were significantly inhibited; monoamines neurotransmitters such as norepinephrine, dopamine, and 5-hydroxytryptamine were significantly decreased, while the contents of acetylcholine, glutamate, and nitric oxide were significantly increased. These results indicated that CeCl(3) exposure could impair the learning ability, which is attributed to the disturbance of the homeostasis of trace elements, enzymes, and neurotransmitter systems in the mouse brain. Therefore, our study aroused the attention of Ln application and long-term exposure effects.
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Affiliation(s)
- Haiquan Zhao
- Medical College of Soochow University, Suzhou, 215123, People's Republic of China
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Reply. Nephrol Dial Transplant 2009. [PMCID: PMC2781157 DOI: 10.1093/ndt/gfp514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tanida E, Usuda K, Kono K, Kawano A, Tsuji H, Imanishi M, Suzuki S, Ohnishi K, Yamamoto K. Urinary scandium as predictor of exposure: effects of scandium chloride hexahydrate on renal function in rats. Biol Trace Elem Res 2009; 130:273-82. [PMID: 19221697 DOI: 10.1007/s12011-009-8337-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2009] [Accepted: 02/03/2009] [Indexed: 11/30/2022]
Abstract
Some of the rare earth elements such as Sc are believed to be non-toxic and, at present, are widely utilized for the replacement of toxic heavy metals in technological applications, but they are not entirely free of toxicity, with hidden potential health risks. In this animal experiment, we report the urinary scandium (Sc) excretion rate and nephrotoxiciy in male Wistar rats. For this purpose, the rats were given a single dose of a solution of scandium chloride by intraperitoneal injection. The Sc excretion (U-Sc) was determined in 24-h urine samples by inductively coupled plasma-argon emission spectrometry along with the Sc nephrotoxicity, urine volume (UV), creatinine (Crt), beta-2-microglobulin (beta2-MG) and N-acetyl-beta-D-glucosaminidase (NAG). A dose-dependent Sc excretion of 0.0063% (r = 0.97) via 24-h urine was confirmed. The administration of Sc induced a significant decrease of UV and Crt and a significant increase of NAG and beta2-MG. These results suggest that U-Sc can be a useful tool for monitoring Sc exposure. The formation of Sc colloidal conjugates that deposit in glomeruli may be the cause of a reduction of the glomerular filtration rate. We propose that the analytical method and results described in this study will be of great importance for future toxicological studies on Sc exposure.
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Affiliation(s)
- Eri Tanida
- Department of Hygiene and Public Health, Division of Preventive and Social Medicine, Osaka Medical College, Takatsuki City, Osaka 569-8686, Japan
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Che Y, Cui Y, Jiang X. Effects of lanthanum chloride administration in prenatal stage on one-trial passive avoidance learning in chicks. Biol Trace Elem Res 2009; 127:37-44. [PMID: 18802670 DOI: 10.1007/s12011-008-8225-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Accepted: 08/19/2008] [Indexed: 10/21/2022]
Abstract
Lanthanum cations (La 3+) are well known for their inhibitory actions on calcium channels. Prenatal lanthanum exposure may affect the development of embryo and alter the capacity for learning and memory in adults, and the one-trial passive avoidance learning paradigm with day-old chicks is an excellent model to study several mechanisms of memory formation. In the present study, we examined the effects of prenatal lanthanum chloride exposure on memory consolidation using one-trial passive avoidance learning task in day-old chicks. The data suggest that chicks injected with lanthanum chloride (2 mg/kg) daily from E9 to E16 had significantly impaired long-term memory at 120 min after training (p < 0.05) but not the chicks injected with lanthanum chloride (0.1 mg/kg) daily from E9 to E16.
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Affiliation(s)
- Yi Che
- Medical College of Soochow University, Suzhou, 215123, People's Republic of China
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Neurotoxicological Evaluation of Long-Term Lanthanum Chloride Exposure in Rats. Toxicol Sci 2008; 103:354-61. [DOI: 10.1093/toxsci/kfn046] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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