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Cao Z, Yang M, Gong H, Feng X, Hu L, Li R, Xu S, Wang Y, Xiao H, Zhou A. Association between prenatal exposure to rare earth elements and the neurodevelopment of children at 24-months of age: A prospective cohort study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123201. [PMID: 38135135 DOI: 10.1016/j.envpol.2023.123201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/24/2023]
Abstract
The increasing consumption of rare earth elements (REEs) has resulted in a considerable risk of environmental exposure. However, the adverse effects of prenatal REEs exposure on children's neurodevelopment are not yet fully recognized. Therefore, we investigated the individual and joint effects of prenatal exposure to 13 REEs on children's neurocognitive development based on 809 mother-child pairs from a large birth cohort in Wuhan, China. Maternal urinary concentrations of 13 REEs were repeatedly measured by inductively coupled plasma mass spectrometry. Children's neurodevelopment [e.g., mental and psychomotor development index (MDI/PDI)] at 24-months was assessed using Bayley Scales of Infant Development of Chinese Revision. GEE and BKMR models were applied to estimate the individual and joint effects of prenatal REE exposure on child neurodevelopment level. After controlling for typical confounders, we observed that exposure to 9 REEs during the first trimester were significantly associated with decreased MDI scores [βs and 95% confidence intervals (CIs) ranging from -2.24 (-3.86 ∼ -0.63) to -1.44 (-2.26∼ -0.26)], and 7 REEs during third trimester were significantly associated decreased PDI scores [β and 95% CIs ranging from -1.95 (-3.19 ∼ -0.71) to -1.25 (-2.34 ∼ -0.16)]. Higher quantiles of REE mixture in first and third trimester were associated with decreased MDI and PDI score. Thulium, erbium in the first trimester and cerium, lanthanum in the third trimester accounted most importance to joint effects on MDI and PDI, respectively. In conclusion, prenatal exposure to higher concentrations of REEs during the first and third trimester were negative associated with children's neurodevelopment.
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Affiliation(s)
- Zhongqiang Cao
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Meng Yang
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Hongjian Gong
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Xiaoyuan Feng
- Medical Center of Cardiovascular Ultrasound, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Liqin Hu
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Ruizhen Li
- Department of Child Healthcare, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Youjie Wang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Xiao
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Aifen Zhou
- Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.
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Abdel-Rahman M, Elmasry HM, Ahmed-Farid OA, Hegazy SM, Rezk MM. Neurological study on the effect of CeNPs and/or La Cl 3 on adult male albino rats. J Trace Elem Med Biol 2024; 81:127323. [PMID: 37890446 DOI: 10.1016/j.jtemb.2023.127323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/27/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023]
Abstract
Lanthanides are a group of 15 elements (8 heavy and 7 light) grouped for their proximity in the chemical and physical properties. Recently, this group of elements has received great attention because of their importance, and their entrance into many industrial technologies making the probability of the living organisms' exposure to it increase. The present study aims to study ability of cerium nanoparticles (CeNPs) or lanthanum (LaCl3) to cross the blood brain barrier also, investigate their neuro effect separately or together on some parameters in six brain areas (cortex, cerebellum, hippocampus, striatum, midbrain, and hypothalamus) of the adult male albino rats. The results showed the ability of both elements to distribute and accumulate in the different brain areas. Also, the results of CeNPs or LaCl3 treatment were in the same line where each element caused a significant decrease in norepinephrine (NE), dopamine (DA), serotonin (5-HT) and GABA accompanied with a significant increase in 5- hydroxyl indoleacetic acid (5-HIAA) glucose level. On the other hand, GSH and MDA showed a significant decrease after CeNPs treatment while, with LaCl3 treatment, MDA showed a significant increase in the different brain areas after 3 weeks of treatment. The coadministration of CeNPs and La Cl3 caused an ameliorating effect in all the tested parameters. In conclusion, from the previous studies the effects of lanthanides in the present study may be in part due to its effect on the release or turnover of neurotransmitters and insulin secretion. Finally, the ameliorative effect of CeNPs may be regarded as its high activity to scavenge the free radicals.
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Affiliation(s)
- Mona Abdel-Rahman
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.
| | - Heba M Elmasry
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.
| | - Omar A Ahmed-Farid
- Department of Physiology, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
| | - Sherein M Hegazy
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mohamed M Rezk
- Isotopes Department, Nuclear Materials Authority, Cairo, Egypt.
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Ge J, Wang X, Meng Q, Tang M, Jiang W, Jiang J, Xiao Q, Hao W, Wei X. Maternal cerium nitrate exposure induces developmental immunotoxicity in BALB/c mouse offspring. Toxicol Lett 2023; 374:57-67. [PMID: 36549429 DOI: 10.1016/j.toxlet.2022.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
With the increasing application of cerium and rare-earth elements (REEs), cerium exposure is becoming more widespread. However, there remains a paucity of evidence on developmental immunotoxicity of cerium. This study was designed to examine the developmental immunotoxicity of gestational and postnatal exposure to cerium nitrate (CN) in BALB/C mouse offspring. Dams were given CN by oral gavage at 0, 0.002, 0.02 and 0.2 mg/kg from gestation day 5 (GD5) to postnatal day 21 (PND 21). On PND 21, the highest dose of CN significantly suppressed the NK cell cytotoxicity, and reduced the proportions of NK cells in peripheral blood and spleen of both female and male pups, however, the proportions of monocytes in peripheral blood and macrophages in spleen only increased in female pups. For adaptive immunity, on PND 21, the suppression of T/B lymphocyte proliferation, humoral and cellular immune responses (number of splenic plaque-forming cells, PFC, and delayed-type hypersensitivity, DTH) were observed in both female and male pup mice exposed to 0.2 mg/kg CN. However, the fall of proportions of T/B lymphocytes in peripheral blood (PB), spleen and mesenteric lymph node (MLN) only found in female pups at 0.2 mg/kg on PND 21. Most indications recovered to normal after 3-week cessation of CN exposure, except the reduction of DTH and PFC. From the findings in this study, the lowest-observed-adverse-effect level (LOAEL) of CN for developmental immunotoxicity was estimated to be 0.2 mg/kg bw per day.
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Affiliation(s)
- Jianhong Ge
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Xiaoyun Wang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Qinghe Meng
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Mengmeng Tang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Wanyu Jiang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Jianjun Jiang
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Qianqian Xiao
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Weidong Hao
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China
| | - Xuetao Wei
- Department of Toxicology, School of Public Health, Peking University, Beijing 100191, PR China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, PR China.
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Zhuang M, Xie H, Jiang Y, Xiao P, Wang K, Chu Z, Zhao J, Zhang T. Probabilistic assessment of dietary rare earth elements intake among people living near a rare earth ore. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159141. [PMID: 36191706 DOI: 10.1016/j.scitotenv.2022.159141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Rare earth elements (REEs) can cause neoplasms, reduce bone density, affect children's intelligence, etc., and diet is an important way for the human body to absorb REEs. With the increasing use of REEs, the impact on human health is becoming more and more important. So, we used a probabilistic assessment method with Monte Carlo simulation to evaluate the dietary intake of REEs by residents of a large light rare earth mining area in Shandong Province. 16 REEs in 447 samples (including wheat, maize, dry beans, vegetables, fruits and eggs) were detected. The mean value of total REEs for all samples was 286.96 μg/kg, and of light rare earth elements (LREEs) was 270.18 μg/kg. Among of LREEs, Ce, La, Nd and Pr were dominant. The REEs content of different food categories showed that wheat, leafy vegetables and allium vegetables had higher content of REEs, melons vegetables, root vegetables, fruits and eggs had the lowest content. The mean dietary intake of rare earth oxides for the whole population was 4.20 μg/kg bw/d, wheat and vegetables (leafy vegetables, allium vegetables and root vegetables) were the main sources of REEs. Dietary intake estimates of REEs by age and gender did not exceed the acceptable daily intake which means implying no impact on human health.
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Affiliation(s)
- Maoqiang Zhuang
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China.
| | - Hongran Xie
- Shandong Provincial Hospital, Jinan, Shandong, PR China
| | - Ying Jiang
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Peirui Xiao
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Kebo Wang
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Zunhua Chu
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Jinshan Zhao
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
| | - Tianliang Zhang
- Shandong Center for Disease Control and Prevention, Jinan, Shandong, PR China
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Andoh V, Guan H, Ma L, Zhao W, Li L, Wu G. Evaluation of biological effects of three neodymium compounds on silkworm, Bombyx mori. J RARE EARTH 2021. [DOI: 10.1016/j.jre.2020.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Yan L, Yang J, Yu M, Lu Y, Huang L, Wang J, Lu X, Jin C, Wu S, Cai Y. Lanthanum chloride induces neuron damage by activating the nuclear factor-kappa B signaling pathway in activated microglia. Metallomics 2019; 11:1277-1287. [DOI: 10.1039/c9mt00108e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lanthanum is a rare earth element which can have adverse effects on the central nervous system (CNS).
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Cheng M, Wang L, Yang Q, Huang X. A detection method in living plant cells for rapidly monitoring the response of plants to exogenous lanthanum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 158:94-99. [PMID: 29660618 DOI: 10.1016/j.ecoenv.2018.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 04/05/2018] [Accepted: 04/07/2018] [Indexed: 06/08/2023]
Abstract
The pollution of rare earth elements (REEs) in ecosystem is becoming more and more serious, so it is urgent to establish methods for monitoring the pollution of REEs. Monitoring environmental pollution via the response of plants to pollutants has become the most stable and accurate method compared with traditional methods, but scientists still need to find the primary response of plants to pollutants to improve the sensitivity and speed of this method. Based on the facts that the initiation of endocytosis is the primary cellular response of the plant leaf cells to REEs and the detection of endocytosis is complex and expensive, we constructed a detection method in living plant cells for rapidly monitoring the response of plants to exogenous lanthanum [La(III), a representative of REEs] by designing a new immuno-electrochemical method for detecting the content change in extracellular vitronectin-like protein (VN) that are closely related to endocytosis. Results showed that when 30 μM La(III) initiated a small amount of endocytosis, the content of extracellular VN increased by 5.46 times, but the structure and function of plasma membrane were not interfered by La(III); when 80 μM La(III) strongly initiated a large amount of endocytosis, the content of extracellular VN increased by 119 times, meanwhile, the structure and function of plasma membrane were damaged. In summary, the detection method can reflect the response of plants to La(III) via detecting the content change in extracellular VN, which provides an effective and convenient way to monitor the response of plants to exogenous REEs.
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Affiliation(s)
- Mengzhu Cheng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qing Yang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiaohua Huang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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Kadri Y, Nciri R, Bardaa S, Brahmi N, Saber S, Harrath AH, Aldahmash W, Alwasel S, Mohany M, El Feki A, Salah Allagui M. Syzygium Aromaticum Alleviates Cerium Chloride-Induced Neurotoxic Effect In The Adult Mice. Toxicol Mech Methods 2018; 29:26-34. [PMID: 30064281 DOI: 10.1080/15376516.2018.1506849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Previous studies have brought to light the toxic effect of cerium chloride (CeCl3) but very little is known about the oxidative brain injury caused by this metal. Medical plants have a well-recognized role in the management of damage caused by pollutants such as CeCl3. Syzygium aromaticum, a potent natural source of bioactive compounds and rich in secondary metabolites, has a broad range of biological functions. The aim of this study is to investigate the capacity of Syzygium aromaticum ethanol extract (ESA) to improve the adverse effects of CeCl3 in the brain tissue. Adult mice were exposed to CeCl3 (20 mg/kg body weight [BW]), with or without ESA, for 60 days. We investigate mice's behavior, damages of cholinergic system and oxidative stress parameters in mice brain. In the present study, in vitro test confirmed that ESA has antioxidant capacity attributed to the presence of flavonoids, polyphenols, and tannins contents. In vivo study showed that CeCl3 caused brain injuries manifested in memory impairment, increase in acetylcholinesterase activity, oxidative stress biomarkers (lipid, proteins, enzymatic and non-enzymatic antioxidant systems), and histopathological alteration in brain tissue. Addition of ESA repaired memory impairment, decreased acetylcholinesterase activity, restored oxidative state, and prevented histopathological alteration. In conclusion, the experimental results showed the protective effects of ethanol extract of Syzygium aromaticum against cerium-induced brain damage.
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Affiliation(s)
- Yamina Kadri
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia
| | - Riadh Nciri
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia.,b Faculty of Sciences and Technology of Sidi Bouzid, University of Kairouan , Sfax , Tunisia
| | - Sana Bardaa
- c Laboratory of Pharmacology, Sfax Medicine Faculty , Sfax , Tunisia
| | - Noura Brahmi
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia
| | - Saidi Saber
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia.,d Department of Biology, Faculty of Science and Arts- Khulais , University of Jeddah , Jeddah , Saudi Arabia
| | - Abdel Halim Harrath
- e Zoology Department, College of Sciences , King Saud University , Riyadh , Saudi Arabia
| | - Waleed Aldahmash
- e Zoology Department, College of Sciences , King Saud University , Riyadh , Saudi Arabia
| | - Saleh Alwasel
- e Zoology Department, College of Sciences , King Saud University , Riyadh , Saudi Arabia
| | - Mohamed Mohany
- e Zoology Department, College of Sciences , King Saud University , Riyadh , Saudi Arabia
| | - Abdelfatteh El Feki
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia
| | - Mohamed Salah Allagui
- a Laboratory of Animal Ecophysiology, Faculty of Life Sciences , University of Sfax , Sfax , Tunisia
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Kadri Y, Nciri R, Brahmi N, Saidi S, Harrath AH, Alwasel S, Aldahmash W, El Feki A, Allagui MS. Protective effects of Curcuma longa against neurobehavioral and neurochemical damage caused by cerium chloride in mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:19555-19565. [PMID: 29732511 DOI: 10.1007/s11356-018-2151-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
Cerium chloride (CeCl3) is considered an environmental pollutant and a potent neurotoxic agent. Medicinal plants have many bioactive compounds that provide protection against damage caused by such pollutants. Curcuma longa is a bioactive compound-rich plant with very important antioxidant properties. To study the preventive and healing effects of Curcuma longa on cerium-damaged mouse brains, we intraperitoneally injected cerium chloride (CeCl3, 20 mg/kg BW) along with Curcuma longa extract, administrated by gavage (100 mg/kg BW), into mice for 60 days. We then examined mouse behavior, brain tissue damage, and brain oxidative stress parameters. Our results revealed a significant modification in the behavior of the CeCl3-treated mice. In addition, CeCl3 induced a significant increment in lipid peroxidation, carbonyl protein (PCO), and advanced oxidation protein product levels, as well as a significant reduction in superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities. Acetylcholinesterase (AChE) activity remarkably increased in the brain of CeCl3-treated mice. Histopathological observations confirmed these results. Curcuma longa attenuated CeCl3-induced oxidative stress and increased the activities of antioxidant enzymes. It also decreased AChE activity in the CeCl3-damaged mouse brain that was confirmed by histopathology. In conclusion, this study suggests that Curcuma longa has a neuroprotective effect against CeCl3-induced damage in the brain.
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Affiliation(s)
- Yamina Kadri
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
| | - Riadh Nciri
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
| | - Noura Brahmi
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
| | - Saber Saidi
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
- Department of Biology, Faculty of Science and Arts - Khulais, University of Jeddah, Jeddah, Saudi Arabia
| | - Abdel Halim Harrath
- Zoology Department, College of Sciences, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Saleh Alwasel
- Zoology Department, College of Sciences, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Waleed Aldahmash
- Zoology Department, College of Sciences, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdelfatteh El Feki
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
| | - Mohamed Salah Allagui
- Laboratory of Animal Ecophysiology, Faculty of Life Sciences, University of Sfax, Sfax, Tunisia
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Jia X, Wang S, Zhou L, Sun L. The Potential Liver, Brain, and Embryo Toxicity of Titanium Dioxide Nanoparticles on Mice. NANOSCALE RESEARCH LETTERS 2017; 12:478. [PMID: 28774157 PMCID: PMC5540742 DOI: 10.1186/s11671-017-2242-2] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 11/30/2016] [Indexed: 05/25/2023]
Abstract
Nanoscale titanium dioxide (nano-TiO2) has been widely used in industry and medicine. However, the safety of nano-TiO2 exposure remains unclear. In this study, we evaluated the liver, brain, and embryo toxicity and the underlying mechanism of nano-TiO2 using mice models. The results showed that titanium was distributed to and accumulated in the heart, brain, spleen, lung, and kidney of mice after intraperitoneal (i.p.) nano-TiO2 exposure, in a dose-dependent manner. The organ/body weight ratios of the heart, spleen, and kidney were significantly increased, and those of the brain and lung were decreased. High doses of nano-TiO2 significantly damaged the functions of liver and kidney and glucose and lipid metabolism, as showed in the blood biochemistry tests. Nano-TiO2 caused damages in mitochondria and apoptosis of hepatocytes, generation of reactive oxygen species, and expression disorders of protective genes in the liver of mice. We found ruptured and cracked nerve cells and inflammatory cell infiltration in the brain. We also found that the activities of constitutive nitric oxide synthases (cNOS), inducible NOS (iNOS), and acetylcholinesterase, and the levels of nitrous oxide and glutamic acid were changed in the brain after nano-TiO2 exposure. Ex vivo mouse embryo models exhibited developmental and genetic toxicity after high doses of nano-TiO2. The size of nano-TiO2 particles may affect toxicity, larger particles producing higher toxicity. In summary, nano-TiO2 exhibited toxicity in multiple organs in mice after exposure through i.p. injection and gavage. Our study may provide data for the assessment of the risk of nano-TiO2 exposure on human health.
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Affiliation(s)
- Xiaochuan Jia
- Tianjin University of Science and Technology, Tianjin, 300457, China
- Technical Center for Safety of Industrial Products of Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin, 300308, China
| | - Shuo Wang
- Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Lei Zhou
- Technical Center for Safety of Industrial Products of Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin, 300308, China
| | - Li Sun
- Technical Center for Safety of Industrial Products of Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin, 300308, China
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Liu C, Yan C, Zhou S, Ge W. Fabrication of sponge biomass adsorbent through UV-induced surface-initiated polymerization for the adsorption of Ce(III) from wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:2755-2764. [PMID: 28659515 DOI: 10.2166/wst.2017.144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The recovery of rare earth ions from industrial wastewater has aroused wide concern in recent years. In present work, we synthesized a novel three-dimensional adsorbent (denoted as LF-AA) by grafting loofah fiber with acrylic acid via ultraviolet radiation. The LF-AA was washed by boiling water and subjected to soxhlet extraction with acetone and then fully characterized by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and scanning electron microscopy (SEM). Rare earth ion (Ce(III)) was selected as a model to validate its adsorption property. The saturation adsorption capacity for Ce(III) reaches 527.5 mg/g. Not only was this material highly efficient at adsorbing Ce(III) from aqueous solutions, it also proved to have ideal performance in regeneration; the total adsorption capacity of LF-AA for Ce(III) after six successive cycles decreased only 6.40% compared with the initial capacity of LF-AA. More importantly, the LF-AA can be easily separated from aqueous solutions because of its three-dimensional sponge natural structure. This study provides a new insight into the fabrication of biomass adsorbent and demonstrated that the LF-AA can be used as excellent adsorbent for the recovery of rare earth ions from wastewater.
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Affiliation(s)
- Chen Liu
- Faculty of Material and Chemistry, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China E-mail: ; Engineering Research Center of Nano-Geomaterials, Ministry of Education, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China
| | - Chunjie Yan
- Faculty of Material and Chemistry, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China E-mail: ; Engineering Research Center of Nano-Geomaterials, Ministry of Education, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China
| | - Sen Zhou
- Faculty of Material and Chemistry, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China E-mail:
| | - Wen Ge
- Faculty of Material and Chemistry, China University of Geosciences, Lu Mo Road 388, Wuhan 430074, China E-mail:
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Zhang L, Yang J, Wu S, Jin C, Lu X, Hu X, Sun Y, Gao X, Cai Y. Activation of Nrf2/ARE signaling pathway attenuates lanthanum chloride induced injuries in primary rat astrocytes. Metallomics 2017; 9:1120-1131. [DOI: 10.1039/c7mt00182g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Lanthanum (La) exposure can lead to learning and memory disorder in animals; however, the underlying mechanism of La induced neurotoxicity is still unknown.
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Affiliation(s)
- Lijin Zhang
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Jinghua Yang
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Shengwen Wu
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Cuihong Jin
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Xiaobo Lu
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Xiaoyu Hu
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Yaling Sun
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Xiang Gao
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
| | - Yuan Cai
- Department of Toxicology
- School of Public Health
- China Medical University
- Shenyang 110122
- People's Republic of China
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13
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Beltifa A, Borgi MA, Ferieni A, Elfekih A, Mansour HB, Allagui MS. In vivo protective role against water contamination with cerium via chronic administration of omega 3. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:146-151. [PMID: 27696197 DOI: 10.1007/s11356-016-7764-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
In the present study, adult, healthy male Wistar rats (120 ± 10 g) were pre-treated by intragastric administration of cerium chloride (CeCl3) 10 mg/kg (BW) each day during 60 days. Control animal were treated with omega 3, a polyunsaturated fatty acid (ω-3), by an intragastric administration at 10 mg/kg of BW for 60 days. Our results showed that CeCl3-induced alterations in all tested oxidative stress markers. In fact, CeCl3-induced the increase the level of both the creatinine concentration and the expression of lactate dehydrogenase, alkaline phosphatase, and transaminase activities in serum. On the other hand, CeCl3 significantly increased the levels of lipid peroxidation in the renal and hepatic tissues. The capacity of CeCl3 to generate reactive oxygen species (ROS) could explain his ability to induce morphological alterations, such as centrilobular hemorrhage, hepatic necrosis, and vacuolization of the cytoplasm in hepatic tissues, and the atrophy of the glomerulus and dilatation of urinary space in renal tissues. However, omega 3, after gastric administration, reduced significantly the toxic effect caused by CeCl3 according to his high ability to scavenge ROS. The present study indicates that omega 3 is a significant compound with protective activity against intoxication with heavy metal, the cerium, and thus may be useful for chemoprevention.
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Affiliation(s)
- Asma Beltifa
- Unité de Biochimie Macromoléculaire et Génétique, Faculté des sciences de Gafsa, cité Zarroug, 2112, Gafsa, Tunisie
- Unité de recherche analyses et procédés appliquées à l'environnement Institut Supérieur des Sciences appliquées et de technologie de Mahdia, Université de Monastir, Monastir, Tunisie
| | - Mohamed Ali Borgi
- Unité de Biochimie Macromoléculaire et Génétique, Faculté des sciences de Gafsa, cité Zarroug, 2112, Gafsa, Tunisie
| | - Anouar Ferieni
- Faculté des Sciences de Sfax, Département des Sciences de la Vie, Laboratoire d'Eco Physiologie Animale, BP, 1171, Sfax, 3000, Tunisie
| | - Abdelfettah Elfekih
- Faculté des Sciences de Sfax, Département des Sciences de la Vie, Laboratoire d'Eco Physiologie Animale, BP, 1171, Sfax, 3000, Tunisie
| | - Hedi Ben Mansour
- Unité de recherche analyses et procédés appliquées à l'environnement Institut Supérieur des Sciences appliquées et de technologie de Mahdia, Université de Monastir, Monastir, Tunisie
| | - Mohamed Sallah Allagui
- Faculté des Sciences de Sfax, Département des Sciences de la Vie, Laboratoire d'Eco Physiologie Animale, BP, 1171, Sfax, 3000, Tunisie.
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14
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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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15
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Cheng J, Fei M, Fei M, Sang X, Sang X, Cheng Z, Gui S, Zhao X, Sheng L, Sun Q, Hu R, Wang L, Hong F. Gene expression profile in chronic mouse liver injury caused by long-term exposure to CeCl3. ENVIRONMENTAL TOXICOLOGY 2014; 29:837-846. [PMID: 23139204 DOI: 10.1002/tox.21826] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/11/2012] [Accepted: 10/14/2012] [Indexed: 06/01/2023]
Abstract
Numerous studies have demonstrated lanthanide (Ln) accumulation in the liver, and the corresponding damage; however, very little work has been done to evaluate the relationship between Ln-induced liver injury and its gene expression profile in mice. In this study, liver injury and gene-expressed profiles in male mice induced by oral administration of CeCl3 (2 mg/kg) via gavage for 90 consecutive days were investigated. The results showed that cerium accumulation, liver inflammation, and hepatocyte necrosis were observed. CeCl3 exposure significantly decreased the counts of white blood cells, lymphocyte, and platelet, the reticulocyte count (Ret) and neutrophilic granulocyte percentages as well as A/G ratio, whereas markedly increased the activities of alkaline phosphatase, lactate dehydrogenase, and cholinesterase, and the concentrations of triglycerides and total cholesterol. Furthermore, microarray results of liver showed that the differential expression of 675 known function genes involved in immune/inflammation response, apoptosis, metabolic process, cell cycle, cell proliferation, cytoskeleton, oxidative stress, signal transduction, transcription, translation, and transportation in CeCl3 exposed livers, respectively. Specifically, the significant downregulation of Nt5e led to inflammation, overexpressed Cyp4a12a and great suppression of Cdkn1a resulted in hepatocyte apoptosis, marked elevation of Cel, and Cyp7b1 expression caused the metabolic disorders in mouse liver after long-term CeCl3 exposure. Therefore, these genes may be in great relation to liver damages induced by exposure to CeCl3 .
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Affiliation(s)
- Jie Cheng
- Medical College, Soochow University, Suzhou 215123, People's Republic of China
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16
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Zhao H, Hong J, Yu X, Zhao X, Sheng L, Ze Y, Sang X, Gui S, Sun Q, Wang L, Hong F. Oxidative stress in the kidney injury of mice following exposure to lanthanides trichloride. CHEMOSPHERE 2013; 93:875-884. [PMID: 23830120 DOI: 10.1016/j.chemosphere.2013.05.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 05/17/2013] [Accepted: 05/21/2013] [Indexed: 06/02/2023]
Abstract
Environmental pollution from lanthanides (Ln) has been recognized as a major problem due to a grab exploitation of Ln mine in China. Exposure to Ln has been demonstrated to cause the nephrotoxicity, very little is known about the mechanism of oxidative damage to kidney in animals. In order to understand Ln-induced nephrotoxicity, various biochemical and chemical parameters were assayed in mouse kidney. Intragastric exposures of LaCl₃, CeCl₃, and NdCl₃ at doses of 2, 5, and 10 mg kg(-1) BW for 90 consecutive days caused nephritis or epithelial cell necrosis and oxidative stress to kidney. An increase in coefficients of the kidney, La, Ce, and Nd accumulation and histopathological changes in the kidney could be observed, followed by increased reactive oxygen species production and peroxidation levels of lipid, protein and DNA, and decreased activities of superoxide dismutase, catalase, glutathione-S-transferase and glutathione reductase as well as antioxidants such as glutathione, ascorbic acid and thiol contents. Furthermore, La, Ce, and Nd significantly suppressed expression of genes and proteins of these antioxidative enzymes in mouse kidney. In addition, kidney functions were disrupted, including an increase of the creatinine, and reductions of uric acid, urea nitrogen, calcium and phosphonium. These findings suggest that nephritis generation or epithelial cell necrosis in mice following exposure to Ln is closely associated with oxidative stress. Of these damages, the most severe was in the Ce(3+)-exposed kidneys, next in the Nd(3+)-exposed kidneys, and the least in the La(3+)-exposed kidneys, which may be attributed to the 4f electron of Ln.
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Affiliation(s)
- Haiquan Zhao
- Medical College of Soochow University, Suzhou 215123, China; College of Life Sciences, Anhui Agriculture University, Hefei 230036, China
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17
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Wang X, Su J, Zhu L, Guan N, Sang X, Ze Y, Zhao X, Sheng L, Gui S, Sun Q, Wang L, Hong F. Hippocampal damage and alterations of inflammatory cytokine expression in mice caused by exposure to cerium chloride. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2013; 64:545-53. [PMID: 23338948 DOI: 10.1007/s00244-012-9870-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 12/29/2012] [Indexed: 05/23/2023]
Abstract
Rare earth element (REE) exposure has been shown to induce central nerve system intoxication, but the molecular mechanisms by which this occurs are poorly understood. In this study, cerium (Ce), in the form of CeCl3, was administered by way of gavage to mice for 90 consecutive days, and cytokine expression, associated with neuroinflammation of hippocampus, as well as spatial memory were increased in mice. Significant Ce accumulation in hippocampus, which led to neuroinflammation and decreased spatial memory of mice, was observed. Furthermore, CeCl3 remarkably increased levels of Toll-like receptors 2 and 4, tumor necrosis factor-α, nucleic IκB kinase, factor-κB-inducible kinase, nucleic factor-κB, and p52 and p65 expression as well as significantly decreased levels of IκB and interleukin-2 expression. These results showed that neuroinflammation and damaged hippocampal function may be associated with CeCl3-induced neuerotoxicity. Our findings suggest the need for workers and consumers to exercise caution when handling REEs.
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Affiliation(s)
- Xiaochun Wang
- Medical College, Soochow University, Suzhou, 215123, China
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18
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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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Wu J, Yang J, Liu Q, Wu S, Ma H, Cai Y. Lanthanum induced primary neuronal apoptosis through mitochondrial dysfunction modulated by Ca²⁺ and Bcl-2 family. Biol Trace Elem Res 2013; 152:125-34. [PMID: 23338853 DOI: 10.1007/s12011-013-9601-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 01/02/2013] [Indexed: 12/25/2022]
Abstract
As a representative element of lanthanide, lanthanum has been widely used in various fields and eventually entered environment and accumulated in human body. Epidemiological and experimental evidences indicated that lanthanum has neurotoxicity; however, the detailed mechanism is still elusive. Here, we chose primary cerebral cortical neurons as model in vitro to investigate the mechanism underlying the toxic effects of lanthanum chloride (LaCl3). This study revealed the following findings: (1) LaCl3 treatment (0.01, 0.1, and 1.0 mM for 24 h) reduced the viability of cortical neurons and elevated apoptotic rate significantly in a dose-dependent manner. (2) LaCl3 triggered mitochondrial apoptotic pathway in cortical neurons, characterized with collapsed mitochondrial membrane potential, release of cytochrome c into cytosol, and increasing expression of activated caspase-3. (3) LaCl3 elevated intracellular Ca(2+) concentration, promoted reactive oxygen species generation, and upregulated pro-apoptotic Bax, whereas it downregulated anti-apoptotic Bcl-2 expression and consequently altered Bax/Bcl-2 ratio, which ultimately lead to neuronal mitochondrial apoptosis. Our results demonstrated that toxicity of lanthanum in cortical neurons perhaps partly attributed to enhanced mitochondrial apoptosis due to mitochondrial dysfunction modulated by Ca(2+) and Bcl-2 family.
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Affiliation(s)
- Jie Wu
- Department of Toxicology, School of Public Health, China Medical University, Shenyang 110001, China
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Toxicological evaluations of rare earths and their health impacts to workers: a literature review. Saf Health Work 2013; 4:12-26. [PMID: 23516020 PMCID: PMC3601293 DOI: 10.5491/shaw.2013.4.1.12] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 11/08/2012] [Accepted: 11/08/2012] [Indexed: 12/20/2022] Open
Abstract
In concert with the development of new materials in the last decade, the need for toxicological studies of these materials has been increasing. These new materials include a group of rare earths (RE). The use of RE nanotechnology is being considered in some green applications, to increase their efficiency by using nano-sized RE compounds, and therefore hazard evaluation and risk assessment are highly recommended. This review was conducted through an extensive contemplation of the literatures in toxicology with in vitro and in vivo studies. Major aspects reviewed were the toxicological evaluations of these elements and metallic compounds at the molecular and cellular level, animal and human epidemiological studies and environmental and occupational health impacts on workers. We also discuss the future prospect of industries with appliances using RE together with the significance of preventive efforts for workers' health. To establish a safe and healthy working environment for RE industries, the use of biomarkers is increasing to provide sustainable measure, due to demand for information about the health risks from unfavorable exposures. Given the recent toxicological results on the exposure of cells, animals and workers to RE compounds, it is important to review the toxicological studies to improve the current understanding of the RE compounds in the field of occupational health. This will help to establish a sustainable, safe and healthy working environment for RE industries.
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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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Exposure to low dose of cinnabar (a naturally occurring mercuric sulfide (HgS)) caused neurotoxicological effects in offspring mice. J Biomed Biotechnol 2012; 2012:254582. [PMID: 22888198 PMCID: PMC3408718 DOI: 10.1155/2012/254582] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 05/24/2012] [Indexed: 11/17/2022] Open
Abstract
Cinnabar, a naturally occurring mercuric sulfide (HgS), has long been used in Chinese mineral medicine for more than 2000 years. Although mercury is well-known for its toxicity, whether cinnabar induces neurotoxicity, especially in infants and children, is unknown. The purpose of this study was to explore the neurotoxic effects of low-dose of cinnabar (10 mg/kg/day) on developing mice. The results revealed neurobehavioral defects in F1-C-Cin group, which were associated with Hg accumulation, increased NO(x) levels in whole blood, and Na(+)/K(+)-ATPase activities in brain tissues. F1- and F2-Cin-V groups were found to increase brain Hg contents and prominent neurobehavioral defects compared with F1-C-V group, suggesting that the fetal brain was more susceptible to irreversible effects for cinnabar-induced damage. Moreover, F1- and F2-Cin-Cin groups had severely neurobehavioral dysfunctions, closely correlated with the further alteration of NO(x) levels and Na(+)/K(+)-ATPase activities than F1- and F2-C-Cin groups. Effects in F2-Cin-Cin group were more significant than those in F1-Cin-Cin group. In conclusion, this study demonstrates that exposure to low-dose of cinnabar during the perinatal and developmental stages results in irreversible and severe injuries of the neurotoxicity in offspring, and NO(x) and Na(+)/K(+)-ATPase activities may exist potential and useful biomarkers for neurotoxicity-induced by low-doses of mercuric compounds.
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