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Oezen G, Kraus L, Schentarra EM, Bolten JS, Huwyler J, Fricker G. Aluminum and ABC transporter activity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 108:104451. [PMID: 38648870 DOI: 10.1016/j.etap.2024.104451] [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: 02/12/2024] [Revised: 04/06/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Aluminum is the third most common element on Earth´s crust and despite its wide use in our workaday life it has been associated with several health risks after overexposure. In the present study the impact of aluminum salts upon ABC transporter activity was studied in the P-GP-expressing human blood-brain barrier cell line hCMEC/D3, in MDCKII cells overexpressing BCRP and MRP2, respectively, and in freshly isolated, functionally intact kidney tubules from Atlantic killifish (Fundulus heteroclitus), which express the analog ABC transporters, P-gp, Bcrp and Mrp2. In contrast to previous findings with heavy metals salts (cadmium(II) chloride or mercury(II) chloride), which have a strong inhibitory effect on ABC transporter activity, or zinc(II) chloride and sodium arsenite, which have a stimulatory effect upon ABC transport function, the results indicate no modulatory effect of aluminum salts on the efflux activity of the human ABC transporters P-GP, BCRP and MRP2 nor on the analog transporters P-gp, Bcrp and Mrp2.
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Affiliation(s)
- Goezde Oezen
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Lisa Kraus
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Eva-Maria Schentarra
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Jan Stephan Bolten
- Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States; Department of Pharmaceutical Sciences, University of Basel, Basel 4056, Switzerland
| | - Joerg Huwyler
- Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States; Department of Pharmaceutical Sciences, University of Basel, Basel 4056, Switzerland
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States.
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Lee SW, Lim JM, Lee GM, Park JH, Seralathan KK, Oh BT. Evaluation of Lentilactobacillus parafarraginis A6-2 strain for aluminum removal and anti-inflammatory effects: implications for alleviating Al toxicity. J Appl Microbiol 2023; 134:lxad271. [PMID: 37989872 DOI: 10.1093/jambio/lxad271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/30/2023] [Accepted: 11/20/2023] [Indexed: 11/23/2023]
Abstract
AIM To assess the effectiveness of Lentilactobacillus parafarraginis A6-2 cell lysate for the removal of aluminum (Al), which induces neurotoxicity, and its protective effect at cellular level. METHODS AND RESULTS The cell lysate of the selected L. parafarraginis A6-2 strain demonstrated superior Al removal compared to live or dead cells. The Al removal efficiency of L. parafarraginis A6-2 cell lysate increased with decreasing pH and increasing temperature, primarily through adsorption onto peptidoglycan. Neurotoxicity mitigation potential of L. parafarraginis A6-2 was evaluated using C6 glioma cells. C6 cells exposed with increasing concentration of Al led to elevated toxicity and inflammation, which were gradually alleviated upon treatment with L. parafarraginis A6-2. Moreover, Al-induced oxidative stress in C6 cells showed a concentration-dependent reduction upon treatment with L. parafarraginis A6-2. CONCLUSIONS This study demonstrated that L. parafarraginis A6-2 strain, particularly in its lysate form, exhibited enhanced capability for Al removal. Furthermore, it effectively mitigated Al-induced toxicity, inflammation, and oxidative stress.
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Affiliation(s)
- Se-Won Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Jeong-Muk Lim
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Gwang-Min Lee
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Jung-Hee Park
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk 54596, South Korea
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3
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Ding L, Liu T, Ma J. Neuroprotective mechanisms of Asiatic acid. Heliyon 2023; 9:e15853. [PMID: 37180926 PMCID: PMC10172897 DOI: 10.1016/j.heliyon.2023.e15853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/06/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023] Open
Abstract
Asiatic acid (AA) is the most crucial component of Asiaticoside in many edible and medicinal plants. It has diverse biological activities such as anti-inflammatory, antioxidant, anti-infective, and anti-tumor. Additionally, AA has been intensively studied in the last decades. It has shown great potential in the treatment of various neurological diseases such as spinal cord injury (SCI), cerebral ischemia, epilepsy, traumatic brain injury (TBI), neural tumors, Alzheimer's disease (AD), and Parkinson's disease (PD). Moreover, AA provides pertinent data for neuroprotective signaling pathways, and its substantial neuroprotective ability makes it a novel candidate for developing drugs that target the central nervous system.
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Affiliation(s)
- Liuyun Ding
- Department of Emergency Medicine, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, 215300, China
| | - Tiantian Liu
- Shanghai Seventh's People's Hospital, An Affiliate of Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China
| | - Jin Ma
- Department of Emergency Medicine, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, 215300, China
- Corresponding author. Department of Emergency Medicine, Affiliated Kunshan Hospital of Jiangsu University, No. 91 Qianjin West Road, Kunshan, 215300, China.
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4
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Ju Y, Bu D, Li B, Cheng D. Protective function and mechanisms of soybean peptides on aluminum maltolate induced brain and liver toxicity on C57BL/6 mice. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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5
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Innovative In Vitro Strategy for Assessing Aluminum Bioavailability in Oral Care Cosmetics. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159362. [PMID: 35954723 PMCID: PMC9368073 DOI: 10.3390/ijerph19159362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/26/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023]
Abstract
Aluminum is an element found in nature and in cosmetic products. It can interfere with the metabolism of other cations, thus inducing gastrointestinal disorder. In cosmetics, aluminum is used in antiperspirants, lipsticks, and toothpastes. The aim of this work is to investigate aluminum bioavailability after accidental oral ingestion derived from the use of a toothpaste containing a greater amount of aluminum hydroxide than advised by the Scientific Committee on Consumer Safety (SCCS). To simulate in vitro toothpaste accidental ingestion, the INFOGEST model was employed, and the amount of aluminum was measured through the ICP-AES analysis. Tissue barrier integrity was analyzed by measuring transepithelial electric resistance, and the tissue architecture was checked through light microscopy. The margin of safety was also calculated. Overall, our results indicate that the acute exposure to aluminum accidentally ingested from toothpastes is safe for the final user, even in amounts higher than SCCS indications.
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He C, Ji J, Zhao X, Lei Y, Li H, Hao Y, Zhang S, Zhang J, Liu C, Nie J, Niu Q. The Role of PKC in Regulating NMDARs in Aluminum-Induced Learning and Memory Impairment in Rats. Neurotox Res 2021; 39:2042-2055. [PMID: 34499332 DOI: 10.1007/s12640-021-00407-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/28/2021] [Accepted: 08/30/2021] [Indexed: 01/27/2023]
Abstract
Aluminum is a widespread environmental neurotoxicant that can induce Alzheimer's disease (AD)-like damage, such as neuronal injury and impairment of learning and memory. Several studies have shown that aluminum could reduce the synaptic plasticity, but its molecular mechanism remains unclear. In this study, rats were treated with aluminum maltol (Al(mal)3) to establish a toxic animal model and PMA was used to interfere with the expression of PKC. The Morris water maze and open field test were used to investigate the behavioral changes of the rats. Western blotting and RT-PCR were used to detect the expression levels of NMDAR subunits, PKC and CaMKII. The results showed that Al(mal)3 damaged learning and memory function and reduced anxiety in rats. During this process, the expression of PKC was downregulated and it inhibited the expression of NMDARs through the phosphorylation of CaMKII.
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Affiliation(s)
- Chanting He
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Lab of Environmental Hazard & Health of Shanxi Province, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Key Lab of Cellular Physiology of Education Ministry, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Department of Anatomy, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jingjing Ji
- Fenyang College, Shanxi Medical University, Fenyang, 032200, Shanxi, China
| | - Xiaoyan Zhao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yang Lei
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Huan Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yanxia Hao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Shuhui Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jingsi Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Chengjuan Liu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jisheng Nie
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Lab of Environmental Hazard & Health of Shanxi Province, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Lab of Cellular Physiology of Education Ministry, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Lab of Environmental Hazard & Health of Shanxi Province, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Key Lab of Cellular Physiology of Education Ministry, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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A Benzothiazole-Based Fluorescent Probe for Ratiometric Detection of Al 3+ and Its Application in Water Samples and Cell Imaging. Int J Mol Sci 2019; 20:ijms20235993. [PMID: 31795136 PMCID: PMC6929017 DOI: 10.3390/ijms20235993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 01/25/2023] Open
Abstract
An easily prepared benzothiazole-based probe (BHM) was prepared and characterized by general spectra, including 1H NMR, 13C NMR, HRMS, and single-crystal X-ray diffraction. Based on the synergistic mechanism of the inhabitation of intramolecular charge transfer (ICT), the BHM displayed high selectivity and sensitivity for Al3+ in DMF/H2O (v/v, 1/1) through an obvious blue-shift in the fluorescent spectrum and significant color change detected by the naked eye, respectively. The binding ratio of BHM with Al3+ was 1:1, as determined by the Job plot, and the binding details were investigated using FT-IR, 1H NMR titration, and ESI-MS analysis. Furthermore, the BHM was successfully applied in the detection of Al3+ in the Songhua River and on a test stripe. Fluorescence imaging experiments confirmed that the BHM could be used to monitor Al3+ in human stromal cells (HSC).
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Xu B, Zhang Y, Li X, Yao Y, Huang X, Xia S, Dong P. A simple preparation route for polysilicate titanium salt from spent titanium solutions. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:1347-1356. [PMID: 31850886 DOI: 10.2166/wst.2019.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Polysilicate titanium salt (PST) is synthesized by using spent titanium solutions and polysilicic acid (PSiA) as raw materials. PSiA could improve the aggregation ability of titanium salt flocculants and also restrain the hydrolysis of Ti4+ to stabilize titanium salts. Meanwhile, replacing titanium salt with spent titanium solutions could reduce the cost of PST and solve the problem of wastewater treatment in the titanium industry, which makes valuable waste regeneration possible. Scanning electron microscopy (SEM) results show the morphology transformation (sheet, spheroid, and sphere) of PST with different Ti/Si molar ratios. The formation process of PST is analyzed by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). This study investigates the effect of Ti/Si molar ratios on PST flocculation performance in humic-kaolin water and actual domestic wastewater treatment. The in situ floc size change of PST is measured by laser particle size analyzer in humic-kaolin water treatment. Additionally, the performance of PST is comprehensively evaluated on flocculation and sedimentation ability, rapid sweep netting ability and stability. In short, the prepared PST in this study is suitable for treating wastewater with high turbidity and chemical oxygen demand (COD) in a wide range of pH values.
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Affiliation(s)
- Bin Xu
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
| | - Yingjie Zhang
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
| | - Xue Li
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
| | - Yao Yao
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
| | - Xuesong Huang
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
| | - Shubiao Xia
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control, Qujing Normal University, Qujing 655011, China
| | - Peng Dong
- National and Local Joint Engineering Laboratory for Lithium-Ion Batteries and Materials Preparation Technology, Kunming 650093, China; Key Laboratory of Advanced Battery Materials of Yunnan Province, Kunming 650093, China; and Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China E-mail:
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9
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Filippini T, Tancredi S, Malagoli C, Cilloni S, Malavolti M, Violi F, Vescovi L, Bargellini A, Vinceti M. Aluminum and tin: Food contamination and dietary intake in an Italian population. J Trace Elem Med Biol 2019; 52:293-301. [PMID: 30732896 DOI: 10.1016/j.jtemb.2019.01.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 12/13/2022]
Abstract
Aluminum and tin are ubiquitous in the environment. In normal biological systems, however, they are present only in trace amounts and have no recognized biological functions in humans. High exposure to these metals can result in adverse health effects such as neurodegenerative diseases. In non-occupationally exposed subjects, diet is the primary source of exposure. In this study, we aimed at estimating dietary aluminum and tin intake in an Italian adult population. We measured aluminum and tin concentrations through inductively-coupled plasma mass spectrometry in 908 food samples. We also estimated dietary intake of these two metals, by using a validated semi-quantitative food-frequency questionnaire administered to 719 subjects (319 men and 400 women) recruited from the general population of the Emilia Romagna region, Northern Italy. We found the highest aluminum levels in legumes, sweets, and cereals, while the highest tin levels were in sweets, meat and seafood. The estimated median daily dietary intake of aluminum was 4.1 mg/day (Interquartile range - IQR: 3.3-5.2), with a major contribution from beverages (28.6%), cereals (16.9%), and leafy vegetables (15.2%). As for tin, we estimated a median intake of 66.8 μg/day (IQR: 46.7-93.7), with a major contribution from vegetables (mainly tomatoes) (24.9%), fruit (15.5%), aged cheese (12.2%), and processed meat (10.4%). This study provides an updated estimate of the dietary intake of aluminum and tin in a Northern-Italy adult population, based on data from a validated food-frequency questionnaire. The intake determined for this population does not exceed the established thresholds of tolerable intake.
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Affiliation(s)
- Tommaso Filippini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy.
| | - Stefano Tancredi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Carlotta Malagoli
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Silvia Cilloni
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Marcella Malavolti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Federica Violi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Luciano Vescovi
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Annalisa Bargellini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy
| | - Marco Vinceti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy; Department of Epidemiology, Boston University School of Public Health, Boston, USA
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10
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Ali NM, Mahmoud AAA, Mahmoud MF, El Fayoumi HM. Glycyrrhizic acid and silymarin alleviate the neurotoxic effects of aluminum in rats challenged with fructose-induced insulin resistance: possible role of toll-like receptor 4 pathway. Drug Chem Toxicol 2019; 42:210-219. [PMID: 30614296 DOI: 10.1080/01480545.2018.1544984] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Aluminum is implicated in the etiology of different neurodegenerative diseases, diabetes and cancer. The current study was conducted to evaluate the protective effects of glycyrrhizic acid (GAM) and silymarin (SLY) on AlCl3-induced neurotoxicity in insulin resistant rats. Insulin resistance (IR) was induced by fructose (10%) in drinking water for 18 weeks. Rats received AlCl3 (34 mg/kg/day) with or without fructose, GAM (40 mg/kg/day), or SLY (100 mg/kg/day). The administration of GAM or SLY suppressed AlCl3-induced memory deficit, oxidative stress, and neuroinflammation in brain tissue of IR rats. Both agents inhibited AlCl3-induced activation of TLR4 signaling pathway including the downstream activation of NF-κB. The results show that IR can partly exacerbate AlCl3-induced neurotoxicity, particularly memory deficit and neuroinflammation. In addition, GAM and SLY showed promising neuroprotective effect against AlCl3-induced brain damage in IR rats. The neuroprotection induced by these natural products might be mediated through their antioxidant and anti-inflammatory effects. The latter effect seems to be mediated via inhibition of TLR4 signaling pathway providing new insights on the mechanisms implicated in AlCl3-induced neurotoxicity and the neuroprotection afforded by GAM and SLY.
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Affiliation(s)
- Noura M Ali
- a Department of Pharmacology, Faculty of Pharmacy , Zagazig University , Zagazig 44519 Egypt
| | - Amr A A Mahmoud
- a Department of Pharmacology, Faculty of Pharmacy , Zagazig University , Zagazig 44519 Egypt
| | - Mona F Mahmoud
- a Department of Pharmacology, Faculty of Pharmacy , Zagazig University , Zagazig 44519 Egypt
| | - Hassan M El Fayoumi
- a Department of Pharmacology, Faculty of Pharmacy , Zagazig University , Zagazig 44519 Egypt
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11
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Neuroprotective role of hyperforin on aluminum maltolate-induced oxidative damage and apoptosis in PC12 cells and SH-SY5Y cells. Chem Biol Interact 2018; 299:15-26. [PMID: 30481499 DOI: 10.1016/j.cbi.2018.11.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 10/17/2018] [Accepted: 11/23/2018] [Indexed: 01/13/2023]
Abstract
Many reports demonstrated that aluminum maltolate (Almal) has potential toxicity to human and animal. Our study has demonstrated that Almal can induce oxidative damage and apoptosis in PC12 cells and SH-SY5Y Cells, two in vitro models of neuronal cells. Hyperforin (HF) is a well-known antioxidant, anti-inflammatory, anti-amyloid and anti-depressant compound extracted from Hypericum perforatum extract. Here, we investigated the neuroprotective effect of HF against Almal-induced neurotoxicity in cultured PC12 cells and SH-SY5Y cells, mainly caused by oxidative stress. In the present study, HF significantly inhibited the formation of reactive oxygen species (ROS), decreased the level of lipid peroxide and enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) compared with Almal group in PC12 cells and SH-SY5Y cells. Additionally, HF suppressed the reduction of the mitochondrial membrane potential (MMP), cytochrome c (Cyt-c) release, activation of caspase-3, and the down-regulation of Bcl-2 expression and up-regulation of Bax expression induced by Almal in PC12 cells and SH-SY5Y cells. In summary, HF protects PC12 cells and SH-SY5Y cells from damage induced by Almal through reducing oxidative stress and preventing of mitochondrial-mediated apoptosis.
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12
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Effects of polytitanium chloride and polyaluminum chloride pre-treatment on ultrafiltration process: Floc properties and membrane fouling. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.03.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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El-Saied FA, Salem TA, Shakdofa MM, Al-Hakimi AN. Anti-neurotoxic evaluation of synthetic and characterized metal complexes of thiosemicarbazone derivatives. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4215] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fathy A. El-Saied
- Department of Chemistry, College of Science; Qassim University; KSA
- Department of Chemistry, Faculty of Science; El-Menoufia University; Shebin El-Kom Egypt
| | - Tarek A. Salem
- Department of Biochemistry, College of Medicine; Qassim University; Saudia Arabia
| | - Mohamad M.E. Shakdofa
- Department of Chemistry, Faculty of Sciences and Arts, Khulais; University of Jeddah; Saudi Arabia
- Inorganic Chemistry Department; National Research Centre; P.O. 12622, Elbehothe st., Dokki Cairo Egypt
| | - Ahmed N. Al-Hakimi
- Department of Chemistry, College of Science; Qassim University; KSA
- Department of Chemistry, Faculty of Science; Ibb University; Ibb Yemen
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14
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Shaw CA. Aluminum as a CNS and Immune System Toxin Across the Life Span. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1091:53-83. [DOI: 10.1007/978-981-13-1370-7_4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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15
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Liu Y, Zheng H, Wang Y, Zheng X, Wang M, Ren J, Zhao C. Synthesis of a cationic polyacrylamide by a photocatalytic surface-initiated method and evaluation of its flocculation and dewatering performance: nano-TiO2 as a photo initiator. RSC Adv 2018; 8:28329-28340. [PMID: 35542495 PMCID: PMC9084301 DOI: 10.1039/c8ra05622f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 07/23/2018] [Indexed: 11/21/2022] Open
Abstract
In the face of complex water quality changes, the application of existing cationic polyacrylamide has been largely limited. In this study, a series of cationic polyacrylamides (TPADs) with excellent flocculation/dewatering performance and low dosage were synthesized through photocatalytic surface initiation using acrylamide (AM) and acryloyloxyethyl trimethylammonium chloride (DAC) as monomers and nano-TiO2 as an initiator. Characterization using Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (1H NMR) spectroscopy, thermogravimetric/differential scanning calorimetry (TG/DSC) and scanning electron microscopy (SEM) was used to analyze the structural and morphological properties of TPADs. The initiation mechanism was described and the study on the properties of TPADs shows that the initiation method could obtain the copolymer with extra-high intrinsic viscosity. Furthermore, the flocculation and dewatering performance of TPADs and PADs were investigated in the micro-polluted low turbidity water flocculation test and sludge dewatering test. The application experimental results indicated that TPADs showed satisfactory turbidity removal and sludge dewatering performance by virtue of strong charge neutralization and a bridging effect. The excellent flocculation/dewatering performance was attributed to the photocatalytic surface-initiated method and the nano-TiO2 initiator. Therefore, it is expected to open up new initiation methods in the synthesis of polymeric flocculants for a broad variety of applications. In the face of complex water quality changes, the application of existing cationic polyacrylamide has been largely limited.![]()
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Affiliation(s)
- Yongzhi Liu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
| | - Yili Wang
- College of Environmental Science and Engineering
- Research Center for Water Pollution Source Control and Eco-remediation
- Beijing Forestry University
- Beijing 100083
- China
| | - Xinyu Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
| | - Moxi Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
| | - Jie Ren
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
| | - Chuanliang Zhao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- PR China
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16
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Ma X, Shang F, Zhang Q, Lin Q, Han S, Shan Y, Du J, Ling F, Zhang H, Xu G. MicroRNA-322 attenuates aluminum maltolate-induced apoptosis in the human SH-SY5Y neuroblastoma cell line. Mol Med Rep 2017; 16:2199-2204. [PMID: 28656195 DOI: 10.3892/mmr.2017.6809] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 04/06/2017] [Indexed: 11/06/2022] Open
Abstract
Aluminum-maltolate (Al‑Malt) is a potent apoptosis inductor, which has been widely reported as an etiologic factor in Alzheimer's disease (AD). MicroRNA-322 (miR‑322) is a vital regulator in various biological processes. The aim of the current study was to identify the role and possible underlying mechanism of miR‑322 in Al‑Malt‑induced apoptosis. Eight concentrations of Al‑Malt were prepared and used for treating the human neuroblastoma cell line, SH‑SY5Y. Subsequent to treatment with Al‑Malt for 3 days, cell viability, apoptosis and the expression levels of apoptosis‑associated factors were measured. In addition, the mRNA expression level of miR‑322 was monitored. Furthermore, cells were transfected with an miR‑322 mimic and/or treated with Al‑Malt, and cell viability, apoptosis and the expression levels of apoptosis‑associated factors were measured again. Al‑Malt significantly inhibited cell viability, but promoted apoptosis. The apoptosis‑associated factors, V‑Myc avian myelocytomatosis viral oncogene homolog (c‑Myc), Bcl-2-associated X protein, caspase‑3 and cleaved caspase‑3 were markedly upregulated by Al‑Malt. The mRNA expression level of miR‑322 was negatively regulated by Al‑Malt. Furthermore, miR‑322 attenuated the apoptosis induced by Al‑Malt and recovered the expression changes of these four factors. Thus, miR‑322 may attenuate Al‑Malt‑induced apoptosis by recovering the expression change of c‑Myc. Furthermore, miR‑322 may be involved in the pathogenesis of Al‑Malt‑associated AD.
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Affiliation(s)
- Xinlong Ma
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Feng Shang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Qiuxia Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, P.R. China
| | - Qingtang Lin
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Shuo Han
- Human Anatomy Division, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yongzhi Shan
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Jianxin Du
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Feng Ling
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
| | - Geng Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China
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17
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Polyacrylamide as coagulant aid with polytitanium sulfate in humic acid-kaolin water treatment: Effect of dosage and dose method. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.04.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Zhu M, Li B, Ma X, Huang C, Wu R, Zhu W, Li X, Liang Z, Deng F, Zhu J, Xie W, Yang X, Jiang Y, Wang S, Wu J, Geng S, Xie C, Zhong C, Liu H. Folic Acid Protected Neural Cells Against Aluminum-Maltolate-Induced Apoptosis by Preventing miR-19 Downregulation. Neurochem Res 2016; 41:2110-8. [DOI: 10.1007/s11064-016-1926-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 03/17/2016] [Accepted: 04/18/2016] [Indexed: 12/27/2022]
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19
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Zhu M, Huang C, Ma X, Wu R, Zhu W, Li X, Liang Z, Deng F, Zhu J, Xie W, Yang X, Jiang Y, Wang S, Wu J, Geng S, Xie C, Zhong C. Modulation of miR-19 in Aluminum-Induced Neural Cell Apoptosis. J Alzheimers Dis 2016; 50:1149-62. [DOI: 10.3233/jad-150763] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mingming Zhu
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Cong Huang
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiao Ma
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Rui Wu
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Weiwei Zhu
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaoting Li
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhaofeng Liang
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Feifei Deng
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jianyun Zhu
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Wei Xie
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xue Yang
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Ye Jiang
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shijia Wang
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jieshu Wu
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Shanshan Geng
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chunfeng Xie
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, Institute of Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
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20
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Alpha synuclein protein is involved in Aluminum-induced cell death and oxidative stress in PC12 cells. Brain Res 2016; 1635:153-60. [PMID: 26826584 DOI: 10.1016/j.brainres.2016.01.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 12/16/2015] [Accepted: 01/22/2016] [Indexed: 12/20/2022]
Abstract
Increased expression and aggregation of α-synuclein (α-syn) protein plays a critical role in mediating the toxic effects of a number of neurodegenerative substances including metals. Thus, knockdown expression of α-syn is proposed as a possible modality for treatment of Parkinson disease (PD). Aluminum (Al) is a neurotoxic metal that contributes to pathogenesis of PD. The aim of this study was to investigate the role of α-syn protein in mediating Al-induced toxicity in PC12 cells. Specific α-syn small interference RNA (siRNA) was applied to knockdown the expression of α-syn protein in PC12 cells. The effects of different concentrations of Al-maltolate (Almal) were then evaluated on cell viability and oxidative stress in the α-syn downregulated cells. The results showed that Almal dose dependently induced apoptosis and increased malondialdehyde (MDA) and catalase activity in PC12 cells. Downregulation of α-syn protein significantly increased cell viability and decreased oxidative markers in Almal-treated cells. These findings suggest that α-syn protein may mediate Al-induced apoptosis and oxidative stress in PC12 cells.
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21
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Caspase-3 is Involved in Aluminum-Induced Impairment of Long-Term Potentiation in Rats Through the Akt/GSK-3β Pathway. Neurotox Res 2016; 29:484-94. [DOI: 10.1007/s12640-016-9597-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 12/15/2015] [Accepted: 01/05/2016] [Indexed: 10/22/2022]
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22
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Effect of piracetam, vincamine, vinpocetine, and donepezil on oxidative stress and neurodegeneration induced by aluminum chloride in rats. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s00580-015-2182-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Huang X, Gao B, Rong H, Yue Q, Zhang Y, Teng P. Effect of using polydimethyldiallylammonium chloride as coagulation aid on polytitanium salt coagulation performance, floc properties and sludge reuse. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.01.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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da Costa NMM, Correa RS, Júnior ISM, Figueiredo AJR, Vilhena KFB, Farias-Junior PMA, Teixeira FB, Ferreira NMM, Pereira-Júnior JB, Dantas KDGF, da Silva MCF, Silva-Junior AF, Alves-Junior SDM, Pinheiro JDJV, Lima RR. Physical, chemical, and immunohistochemical investigation of the damage to salivary glands in a model of intoxication with aluminium citrate. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2014; 11:12429-40. [PMID: 25464135 PMCID: PMC4276622 DOI: 10.3390/ijerph111212429] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/09/2014] [Accepted: 10/23/2014] [Indexed: 12/21/2022]
Abstract
Aluminum absorption leads to deposits in several tissues. In this study, we have investigated, to our knowledge for the first time, aluminum deposition in the salivary glands in addition to the resultant cellular changes in the parotid and submandibular salivary glands in a model of chronic intoxication with aluminum citrate in rats. Aluminum deposits were observed in the parotid and submandibular glands. Immunohistochemical evaluation of cytokeratin-18 revealed a decreased expression in the parotid gland with no changes in the submandibular gland. A decreased expression of α-smooth muscle actin was observed in the myoepithelial cells of both glands. The expression of metallothionein I and II (MT-I/II), a group of metal-binding proteins, which are useful indicators for detecting physiological responses to metal exposure, was higher in both glands. In conclusion, we have shown that at a certain time and quantity of dosage, aluminum citrate promotes aluminum deposition in the parotid and submandibular glands, leads to an increased expression of MT-I/II in both the glands, damages the cytoskeleton of the myoepithelial cells in both glands, and damages the cytoskeleton of the acinar/ductal cells of the parotid glands, with the submandibular glands showing resistance to the toxicity of the latter.
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Affiliation(s)
- Natacha M. M. da Costa
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Russell S. Correa
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Ismael S. M. Júnior
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Adilson J. R. Figueiredo
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Kelly F. B. Vilhena
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Paulo M. A. Farias-Junior
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Francisco B. Teixeira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Nayana M. M. Ferreira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - João B. Pereira-Júnior
- School of Chemistry, Institute of Exact and Natural Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (J.B.P.-J.); (K.G.F.D.)
| | - Kelly das Graças F. Dantas
- School of Chemistry, Institute of Exact and Natural Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (J.B.P.-J.); (K.G.F.D.)
| | - Marcia C. F. da Silva
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Ademir F. Silva-Junior
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
| | - Sergio de M. Alves-Junior
- School of Dentistry, Institute of Health Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (S.M.A.-J.); (J.J.V.P.)
| | - João de Jesus V. Pinheiro
- School of Dentistry, Institute of Health Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (S.M.A.-J.); (J.J.V.P.)
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, 66075-900 Belém-Pará, Brazil; E-Mails: (N.M.M.C.); (R.S.C.); (I.S.M.J.); (A.J.R.F.); (K.F.B.V.); (P.M.A.F.-J.); (F.B.T.); (N.M.M.F.); (M.C.F.S.); (A.F.S.-J.)
- Author to whom correspondence should be addressed: E-Mail: ; Tel.: +55-91-8134-8294; Fax: +55-91-3201-7741
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Zhang L, Jin C, Lu X, Yang J, Wu S, Liu Q, Chen R, Bai C, Zhang D, Zheng L, Du Y, Cai Y. Aluminium chloride impairs long-term memory and downregulates cAMP-PKA-CREB signalling in rats. Toxicology 2014; 323:95-108. [DOI: 10.1016/j.tox.2014.06.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 12/19/2022]
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26
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Huang X, Bo X, Zhao Y, Gao B, Wang Y, Sun S, Yue Q, Li Q. Effects of compound bioflocculant on coagulation performance and floc properties for dye removal. BIORESOURCE TECHNOLOGY 2014; 165:116-121. [PMID: 24656485 DOI: 10.1016/j.biortech.2014.02.125] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/23/2014] [Accepted: 02/26/2014] [Indexed: 06/03/2023]
Abstract
A series of jar tests was conducted to investigate the coagulation performance of using compound bioflocculant (CBF) as a coagulant aid with aluminum sulfate (AS) and polyaluminum chloride (PAC) in synthetic dyeing wastewater treatment. Floc size, growth, breakage, re-growth and sedimentation natural were investigated by PDA2000. The results showed that the corresponding dual-coagulants of AS and PAC enhanced the color removal efficiency, especially at low aluminum dosage. Results also indicated that the floc generated by aluminum salts and CBF had larger size and higher growth rate. In addition, for both AS and PAC the floc recoverability was improved by addition of CBF. The adsorption and bridging effect of CBF performed a positive role in dye wastewater treatment.
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Affiliation(s)
- Xin Huang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Xiaowen Bo
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Yanxia Zhao
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Baoyu Gao
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China.
| | - Yan Wang
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Shenglei Sun
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Qinyan Yue
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
| | - Qian Li
- School of Environmental Science and Engineering, Shandong University, No. 27 Shanda South Road, Jinan 250100, Shandong, People's Republic of China
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27
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Khaodee W, Aeungmaitrepirom W, Tuntulani T. Effectively simultaneous naked-eye detection of Cu(II), Pb(II), Al(III) and Fe(III) using cyanidin extracted from red cabbage as chelating agent. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 126:98-104. [PMID: 24594882 DOI: 10.1016/j.saa.2014.01.125] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 01/22/2014] [Accepted: 01/26/2014] [Indexed: 06/03/2023]
Abstract
Simultaneous determination of Cu(II), Pb(II), Al(III) and Fe(III) using cyanidin as a chelating agent was investigated in terms of both quantitative and qualitative detections. Cyanidin was extracted and purified from red cabbage which is a local plant in Thailand. The selectivity of this method was examined by regulating the pH of cyanidin solution operated together with masking agents. It was found that Cu(II), Pb(II), Al(III) and Fe(III) simultaneously responded with the color change at pH 7, pH 6, pH 5 and pH 4, respectively. KF, DMG and the mixture of KF and DMG were used as masking agents for the determination of Fe(III), Al(III) and Pb(II), respectively. Results from naked-eye detection were evaluated by comparing with those of inductively coupled plasma (ICP), and there was no significant difference noticed. Cyanidin using as a multianalyte reagent could be employed for simultaneous determination of Cu(II), Pb(II), Al(III) and Fe(III) at the lowest concentration at 50, 80, 50 and 200μM, respectively, by slightly varying pHs. Moreover, the proposed method could be potentially applied for real water samples with simplicity, rapidity, low cost and environmental safety.
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Affiliation(s)
- Warangkhana Khaodee
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | | | - Thawatchai Tuntulani
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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28
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Shugalei IV, Garabadzhiu AV, Ilyushin MA, Sudarikov AM. Some aspects of the effect of aluminum and its compounds on living organisms. RUSS J GEN CHEM+ 2014. [DOI: 10.1134/s1070363213130082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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D'Abrosca B, Pacifico S, Scognamiglio M, Tsafantakis N, Pagliari E, Monaco P, Fiorentino A. Petrorhagiosides A - D, Newγ-Pyrone Derivatives fromPetrorhagia saxifragaLink. Helv Chim Acta 2013. [DOI: 10.1002/hlca.201200378] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Silva AFJ, Aguiar MSS, Carvalho OSJ, Santana LDNS, Franco ECS, Lima RR, Siqueira NVMD, Feio RA, Faro LRF, Gomes-Leal W. Hippocampal neuronal loss, decreased GFAP immunoreactivity and cognitive impairment following experimental intoxication of rats with aluminum citrate. Brain Res 2012; 1491:23-33. [PMID: 23131585 DOI: 10.1016/j.brainres.2012.10.063] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 10/21/2012] [Accepted: 10/30/2012] [Indexed: 10/27/2022]
Abstract
Aluminum (Al) is a neurotoxic agent with deleterious actions on cognitive processes. Nevertheless, few studies have investigated the neuropathological effects underlying the Al-induced cognitive impairment. We have explored the effects of acute Al citrate intoxication on both hippocampal morphology and mnemonic processes in rodents. Adult male Wistar rats were intoxicated with a daily dose of Al citrate (320 mg/kg) during 4 days by gavage. Animals were perfused at 8 (G2), 17 (G3) and 31 days (G4) after intoxication. Control animals were treated with sodium citrate (G1). Animals were submitted to behavioral tests of open field and elevated T-maze. Immunohistochemistry was performed to label neurons (anti-NeuN) and astrocytes (anti-GFAP) in both CA1 and CA3 hippocampal regions. There was an increase in the locomotor activity in open field test for G2 in comparison to control group and other groups (ANOVA-Bonferroni, P<0.05). The elevated T-maze avoidance latency (AL) was higher in all intoxicated groups compared to control (P<0.05) in avoidance 1. These values remained elevated in avoidance 2 (P<0.05), but abruptly decreased in G2 and G3, but not in G1 and G4 animals in avoidance 3 (P<0.05). There were no significant differences for 1 and 2 escape latencies. There were intense neuronal loss and a progressive decrease in GFAP immunoreactivity in the hippocampus of intoxicated animals. The results suggest that Al citrate treatment induces deficits on learning and memory concomitant with neuronal loss and astrocyte impairment in the hippocampus of intoxicated rats.
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Affiliation(s)
- Ademir F Junior Silva
- Laboratory of Experimental Neuroprotection and Neuroregeneration, Institute of Biological Sciences, Federal University of Pará, Brazil
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Aluminum maltolate induces primary rat astrocyte apoptosis via overactivation of the class III PI3K/Beclin 1-dependent autophagy signal. Toxicol In Vitro 2012; 26:215-20. [DOI: 10.1016/j.tiv.2011.11.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 10/23/2011] [Accepted: 11/17/2011] [Indexed: 11/22/2022]
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Klug B, Specht A, Horst WJ. Aluminium localization in root tips of the aluminium-accumulating plant species buckwheat (Fagopyrum esculentum Moench). JOURNAL OF EXPERIMENTAL BOTANY 2011; 62:5453-62. [PMID: 21831842 PMCID: PMC3223043 DOI: 10.1093/jxb/err222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Aluminium (Al) uptake and transport in the root tip of buckwheat is not yet completely understood. For localization of Al in root tips, fluorescent dyes and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) were compared. The staining of Al with morin is an appropriate means to study qualitatively the radial distribution along the root tip axis of Al which is complexed by oxalate and citrate in buckwheat roots. The results compare well with the distribution of total Al determined by LA-ICP-MS which could be reliably calibrated to compare with Al contents by conventional total Al determination using graphite furnace atomic absorption spectrometry. The Al localization in root cross-sections along the root tip showed that in buckwheat Al is highly mobile in the radial direction. The root apex predominantly accumulated Al in the cortex. The subapical root section showed a homogenous Al distribution across the whole section. In the following root section Al was located particularly in the pericycle and the xylem parenchyma cells. With further increasing distance from the root apex Al could be detected only in individual xylem vessels. The results support the view that the 10 mm apical root tip is the main site of Al uptake into the symplast of the cortex, while the subapical 10-20 mm zone is the main site of xylem loading through the pericycle and xylem parenchyma cells. Progress in the better molecular understanding of Al transport in buckwheat will depend on the consideration of the tissue specificity of Al transport and complexation.
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Percy ME, Kruck TPA, Pogue AI, Lukiw WJ. Towards the prevention of potential aluminum toxic effects and an effective treatment for Alzheimer's disease. J Inorg Biochem 2011; 105:1505-12. [PMID: 22099160 PMCID: PMC3714848 DOI: 10.1016/j.jinorgbio.2011.08.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Revised: 07/31/2011] [Accepted: 08/01/2011] [Indexed: 01/19/2023]
Abstract
In 1991, treatment with low dose intramuscular desferrioxamine (DFO), a trivalent chelator that can remove excessive iron and/or aluminum from the body, was reported to slow the progression of Alzheimer's disease (AD) by a factor of two. Twenty years later this promising trial has not been followed up and why this treatment worked still is not clear. In this critical interdisciplinary review, we provide an overview of the complexities of AD and involvement of metal ions, and revisit the neglected DFO trial. We discuss research done by us and others that is helping to explain involvement of metal ion catalyzed production of reactive oxygen species in the pathogenesis of AD, and emerging strategies for inhibition of metal-ion toxicity. Highlighted are insights to be considered in the quests to prevent potentially toxic effects of aluminum toxicity and prevention and intervention in AD.
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Affiliation(s)
- Maire E Percy
- Neurogenetics Laboratory, Surrey Place Centre, Toronto, ON, Canada M5S 2C2.
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Oter O, Aydogdu S. Determination of Aluminum Ion with Morin in a Medium Comprised by Ionic Liquid–Water Mixtures. J Fluoresc 2010; 21:43-50. [DOI: 10.1007/s10895-010-0688-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 06/01/2010] [Indexed: 10/19/2022]
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Life and death in aluminium-exposed cultures of rat lactotrophs studied by flow cytometry. Cell Biol Toxicol 2010; 26:341-53. [DOI: 10.1007/s10565-009-9147-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Accepted: 12/09/2009] [Indexed: 10/20/2022]
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36
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Sánchez-Iglesias S, Méndez-Álvarez E, Iglesias-González J, Muñoz-Patiño A, Sánchez-Sellero I, Labandeira-García JL, Soto-Otero R. Brain oxidative stress and selective behaviour of aluminium in specific areas of rat brain: potential effects in a 6-OHDA-induced model of Parkinson’s disease. J Neurochem 2009; 109:879-88. [DOI: 10.1111/j.1471-4159.2009.06019.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tripathi S, Mahdi AA, Nawab A, Chander R, Hasan M, Siddiqui MS, Mahdi F, Mitra K, Bajpai VK. Influence of age on aluminum induced lipid peroxidation and neurolipofuscin in frontal cortex of rat brain: A behavioral, biochemical and ultrastructural study. Brain Res 2009; 1253:107-16. [DOI: 10.1016/j.brainres.2008.11.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2008] [Revised: 11/13/2008] [Accepted: 11/14/2008] [Indexed: 01/10/2023]
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Sethi P, Jyoti A, Singh R, Hussain E, Sharma D. Aluminium-induced electrophysiological, biochemical and cognitive modifications in the hippocampus of aging rats. Neurotoxicology 2008; 29:1069-79. [DOI: 10.1016/j.neuro.2008.08.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2008] [Revised: 08/14/2008] [Accepted: 08/22/2008] [Indexed: 12/14/2022]
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39
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Verstraeten SV, Aimo L, Oteiza PI. Aluminium and lead: molecular mechanisms of brain toxicity. Arch Toxicol 2008; 82:789-802. [DOI: 10.1007/s00204-008-0345-3] [Citation(s) in RCA: 333] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Accepted: 07/15/2008] [Indexed: 10/21/2022]
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40
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Zhou Y, Harris WR, Yokel RA. The influence of citrate, maltolate and fluoride on the gastrointestinal absorption of aluminum at a drinking water-relevant concentration: A 26Al and 14C study. J Inorg Biochem 2008; 102:798-808. [DOI: 10.1016/j.jinorgbio.2007.11.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 10/13/2007] [Accepted: 11/30/2007] [Indexed: 11/17/2022]
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Gonçalves PP, Silva VS. Does neurotransmission impairment accompany aluminium neurotoxicity? J Inorg Biochem 2007; 101:1291-338. [PMID: 17675244 DOI: 10.1016/j.jinorgbio.2007.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2007] [Revised: 05/25/2007] [Accepted: 06/05/2007] [Indexed: 02/05/2023]
Abstract
Neurobehavioral disorders, except their most overt form, tend to lie beyond the reach of clinicians. Presently, the use of molecular data in the decision-making processes is limited. However, as details of the mechanisms of neurotoxic action of aluminium become clearer, a more complete picture of possible molecular targets of aluminium can be anticipated, which promises better prediction of the neurotoxicological potential of aluminium exposure. In practical terms, a critical analysis of current data on the effects of aluminium on neurotransmission can be of great benefit due to the rapidly expanding knowledge of the neurotoxicological potential of aluminium. This review concludes that impairment of neurotransmission is a strong predictor of outcome in neurobehavioral disorders. Key questions and challenges for future research into aluminium neurotoxicity are also identified.
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Affiliation(s)
- Paula P Gonçalves
- Departamento de Biologia, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Prolo P, Chiappelli F, Grasso E, Rosso MG, Neagos N, Dovio A, Sartori ML, Perotti P, Fantò F, Civita M, Fiorucci A, Villanueva P, Angeli A. Aluminium blunts the proliferative response and increases apoptosis of cultured human cells: putative relationship to Alzheimer's disease. Bioinformation 2007; 2:24-7. [PMID: 18084647 PMCID: PMC2139997 DOI: 10.6026/97320630002024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2007] [Accepted: 06/13/2007] [Indexed: 11/23/2022] Open
Abstract
Aluminium (Al) has been investigated as a neurotoxic substance. Al ranks among the potential environmental risk factors for Alzheimer's disease (AD). Epidemiological studies tested the relationship between Al in drinking water and AD, showing a significant correlation between elevated levels of monomeric Al in water and AD, although data to date remain inconclusive with respect to total Al. The aim of this study was to test whether or not Al exacerbates cellular toxicity mediated by the amyloid beta (Abeta) peptide. We evaluated the role of Al in modulating programmed cell death (apoptosis) in human cell cultures. We used the osteosarcoma cell line monolayer (SaOs-2) to demonstrate that treatment of SaOs-2 cultures with the Abeta peptide mid-fragment (25 to 35) at nano M, followed by co-incubation with physiological concentrations of aluminium chloride, which release monomeric Al in solution, led to marked expression of caspase 3, but not caspase 9, key markers of the apoptotic process. The same experimental conditions were shown to blunt significantly the proliferative response of normal human peripheral blood mononuclear cells (PBMC) to phytohemagglutinin (PHA) stimulation. Our observations support the hypothesis that Al significantly impairs certain cellular immune responses, and confirm that Al-mediated cell toxicity may play an important role in AD.
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Affiliation(s)
- Paolo Prolo
- Laboratory of Psychoneuroimmunology, Division of Oral Biology and Medicine, UCLA School of Dentistry, CA, USA.
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Platt B, Drysdale AJ, Nday C, Roloff EVL, Drever BD, Salifoglou A. Differential toxicity of novel aluminium compounds in hippocampal culture. Neurotoxicology 2007; 28:576-86. [PMID: 17303244 DOI: 10.1016/j.neuro.2006.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2006] [Revised: 12/19/2006] [Accepted: 12/19/2006] [Indexed: 10/23/2022]
Abstract
The dependence of aluminium (Al) toxicity on its chemical form has been implicated in previous studies, but the complex chemistry of Al in solutions of biological preparations has hampered a reliable assessment. Here, we assessed the toxicity of select and pure Al(III) citrate compounds, well-characterized at physiological pH, and compared it with Al from standard solution (in HCl). Cell death rates of neurones and glia were established in hippocampal cultures following 3h incubations in a HEPES-buffered solution and 24h incubations in full culture medium. Overall, Al toxicity was found to vary considerably between compounds, with duration of exposure, medium type, and cell type as factors. While Al (from atomic absorption standard solution) induced the highest levels of cell death, AlCit1, ((NH(4))(5)[Al(C(6)H(4)O(7))(2)].2H(2)O) was the most toxic citrate compound, and affected viability of neurones more than glia (viability at 500 microM/3h-neurones: 40%; glia: 60%). AlCit2 (K(4)[Al(C(6)H(4)O(7))(C(6)H(5)O(7))].4H(2)O) did not show any toxicity after 3h, but severe toxicity after 24h in both cell types (viability at 500 microM/24h-neurones: 50%, glia: 30%). AlCit3 ((NH(4))(5)[Al(3)(C(6)H(4)O(7))(3)(OH)(H(2)O)].(NO(3)).6H(2)O), exhibited a cell type specific toxicity profile, and only affected neuronal viability at both time points (neuronal viability at 500 microM/3h: 20%). The medium type and presence of serum (FBS) was also found to contribute to the toxicity pattern, with serum providing partial protection. Since the Al(III) compounds introduced here are assumed to form in vivo, our data raise further awareness for the toxicity of Al(III) in general, and for the importance of Al speciation and cell type specific actions in its toxicity.
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Affiliation(s)
- Bettina Platt
- School of Medical Sciences, College of Life Sciences and Medicine, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen, Scotland, UK.
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44
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Gad SC, Cassidy CD, Aubert N, Spainhour B, Robbe H. Nonclinical vehicle use in studies by multiple routes in multiple species. Int J Toxicol 2007; 25:499-521. [PMID: 17132609 DOI: 10.1080/10915810600961531] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The laboratory toxicologist is frequently faced with the challenge of selecting appropriate vehicles or developing utilitarian formulations for use in in vivo nonclinical safety assessment studies. Although there are many vehicles available that may meet physical and chemical requirements for chemical or pharmaceutical formulation, there are wide differences in species and route of administration specific to tolerances to these vehicles. In current practice, these differences are largely approached on a basis of individual experience as there is only scattered literature on individual vehicles and no comprehensive treatment or information source. This approach leads to excessive animal use and unplanned delays in testing and development. To address this need, a consulting firm and three contract research organizations conducted a rigorous data mining operation of control (vehicle) data from studies dating from 1991 to present. The results identified 65 single component vehicles used in 368 studies across multiple species (dog, primate, rat, mouse, rabbit, guinea pig, minipig, chick embryo, and cat) by multiple routes. Reported here are the results of this effort, including maximum tolerated use levels by species, route, and duration of study, with accompanying dose limiting toxicity. Also included are basic chemical information and a review of available literature on each vehicle, as well as guidance on volume limits and pH by route and some basic guidance on nonclinical formulation development.
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Affiliation(s)
- Shayne C Gad
- Gad Consulting Services, Cary, North Carolina 27518, USA.
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45
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Bavili Tabrizi A. Cloud point extraction and spectrofluorimetric determination of aluminium and zinc in foodstuffs and water samples. Food Chem 2007. [DOI: 10.1016/j.foodchem.2005.10.015] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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46
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Krewski D, Yokel RA, Nieboer E, Borchelt D, Cohen J, Harry J, Kacew S, Lindsay J, Mahfouz AM, Rondeau V. Human health risk assessment for aluminium, aluminium oxide, and aluminium hydroxide. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2007; 10 Suppl 1:1-269. [PMID: 18085482 PMCID: PMC2782734 DOI: 10.1080/10937400701597766] [Citation(s) in RCA: 509] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Affiliation(s)
- Daniel Krewski
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
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Aremu DA, Meshitsuka S. Some aspects of astroglial functions and aluminum implications for neurodegeneration. ACTA ACUST UNITED AC 2006; 52:193-200. [PMID: 16529821 DOI: 10.1016/j.brainresrev.2006.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2005] [Revised: 01/24/2006] [Accepted: 02/02/2006] [Indexed: 01/29/2023]
Abstract
The present decade had witnessed an unprecedented attention focused on glial cells as a result of their unusual physiological roles that are being unraveled. It is now known that, rather than being a mere supporter of neurons, astroglia are actively involved in their modulation. The aluminum hypothesis seems to have been laid to rest, probably due to contradictory epidemiological reports on it as a causative factor of neurodegenerative diseases. Surprisingly, newer scientific evidences continue to appear and recent findings have implicated astrocytes as the principal target of its toxic action. In view of the likely detrimental effects of the interaction between these two infamous partners in neuroscience on neurons and nervous system, we have reviewed some aspects of glia-neuron interaction and discussed the implications of aluminum-impaired astrocytic functions on neurodegeneration. Because sporadic causes still account for the majority of the neurodegenerative diseases of which Alzheimer's disease is the most prominent, it has been suggested that neurotoxicologists should not relent in screening for the environmental agents, such as aluminum, and that considerable attention should be given to glial cells in view of the likely implications of environmental toxicants on their never-imagined newly reported roles in the central nervous system (CNS).
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Affiliation(s)
- David A Aremu
- Division of Medical Environmentology, Department of Social Medicine, Graduate School of Medical Sciences, Tottori University, Yonago 683-8503, Japan.
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48
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Jones DL, Blancaflor EB, Kochian LV, Gilroy S. Spatial coordination of aluminium uptake, production of reactive oxygen species, callose production and wall rigidification in maize roots. PLANT, CELL & ENVIRONMENT 2006; 29:1309-18. [PMID: 17080952 DOI: 10.1111/j.1365-3040.2006.01509.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Aluminium (Al) toxicity associated with acid soils represents one of the biggest limitations to crop production worldwide. Although Al specifically inhibits the elongation of root cells, the exact mechanism by which this growth reduction occurs remains controversial. The aim of this study was to investigate the spatial and temporal dynamics of Al migration into roots of maize (Zea mays L.) and the production of the stress response compound callose. Using the Al-specific fluorescent probe morin, we demonstrate the gradual penetration of AI into roots. Al readily accumulates in the root's epidermal and outer cortical cell layers but does not readily penetrate into the inner cortex. After prolonged exposure times (12-24 h), Al had entered all areas of the root apex. The spatial and temporal accumulation of Al within the root is similarly matched by the production of the cell wall polymer callose, which is also highly localized to the epidermis and outer cortical region. Exposure to Al induced the rapid production of reactive oxygen species and induced a significant rigidification of the cell wall. Our results suggest that Al-induced root inhibition in maize occurs by rigidification of the epidermal layers.
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Affiliation(s)
- D L Jones
- School of Agricultural and Forest Sciences, University of Wales, Bangor, Gwynedd, LL57 2UW, UK.
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Turgut S, Bor-Kucukatay M, Emmungil G, Atsak P, Turgut G. The effects of low dose aluminum on hemorheological and hematological parameters in rats. Arch Toxicol 2006; 81:11-7. [PMID: 16721596 DOI: 10.1007/s00204-006-0119-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Accepted: 05/03/2006] [Indexed: 10/24/2022]
Abstract
Aluminum (Al) is a nonessential element and humans are constantly exposed to Al as a result of an increase in industrialization and improving technology practices. Al toxicity can induce several clinical disorders such as neurotoxicity, gastrointestinal toxicity, hepatotoxicity, bone diseases, and anemia. This study aimed at evaluating the possible effects of short term and low dose Al exposure on hemorheological and hematological parameters in rats. Fourteen young, male Wistar albino rats were divided into two groups: 1 mg/200 g body weight of aluminum sulfate (Al(2)(SO(4))(3) was injected intraperitoneally to the first group for two weeks, three times a week. The animals of the control group received only physiological saline solution during this period. At the end of the experimental period, anticoagulated blood samples were collected and hematological parameters were determined using an electronic hematology analyzer. Red blood cell (RBC) deformability and aggregation were measured using an ektacytometer (LORCA) and plasma and whole blood viscosities were determined with a Wells-Brookfield cone-plate rotational viscometer. Significant decreases in mean corpuscular volume (MCV), red blood cell (RBC) deformability at low shear stress levels, the aggregation half time (t1/2) and the amplitude (AMP) of aggregation and significant increments in whole blood viscosity (WBV) at native and 40% hematocrit (Hct) of Al-treated rats have been observed. In conclusion, low dose Al(2)(SO(4))(3) exposure for a short-time may be responsible for alterations in either rheological properties of blood or hemorheological properties through a remarkable effect on RBC membrane mechanical properties . These alterations may also play an important role in the development of anemia in the Al-treated animals.
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Affiliation(s)
- Sebahat Turgut
- Department of Physiology, Medical Faculty, Pamukkale University, 20020 Denizli, Turkey.
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50
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Johnson VJ, Tsunoda M, Murray TF, Sharma RP. Decreased membrane fluidity and hyperpolarization in aluminum-treated PC-12 cells correlates with increased production of cellular oxidants. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2005; 19:221-230. [PMID: 21783480 DOI: 10.1016/j.etap.2004.05.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2003] [Accepted: 05/06/2004] [Indexed: 05/31/2023]
Abstract
Effects of aluminum (Al) on membrane properties of excitable cells are not fully understood. Several reports have identified cellular membranes as sensitive targets for Al intoxication. In the present study, we tested the hypothesis that treatment with Al would alter membrane fluidity and potential and these changes would correlate with aberrant generation of cellular oxidants. The effects of in vitro Al exposure in resting rat pheochromocytoma (PC-12) cells, a model that exhibits neuron-like properties, were investigated. Treatment of PC-12 cells with Al (>0.01mM) resulted in a concentration-dependent decrease in membrane fluidity. Similar concentrations of Al increased the rate of extracellular acidification, measured by a cytosensor microphysiometer, indicating stimulation of proton extrusion from cells. This change in proton extrusion was accompanied by a rapid and concentration-dependent hyperpolarizion of the cell membrane as determined by decreased fluorescence of a potential-sensitive dye, bis-[1,3-dibutylbarbituric acid]trimethine oxonol [Dibac(4)(3)]. Al-induced perturbations of membrane properties correlated with an increased level of cellular oxidants, indicated by increasing dihydrorhodamine 123 oxidation. Results suggest that acute exposure to Al modifies membrane properties of neuron-like cells and therefore cellular membranes represent a plausible target for Al neurotoxicity. Alterations in membrane potential can have a dramatic impact on cellular communication especially in neurons and may be an important mechanism in Al neurotoxicity.
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Affiliation(s)
- Victor J Johnson
- Department of Physiology and Pharmacology, College of Veterinary Medicine, The University of Georgia, Athens, Georgia 30602-7389, USA
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