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Martins AC, Ruella Oliveira S, Barbosa F, Tinkov AA, V A, Santamaría A, Lee E, Bowman AB, Aschner M. Evaluating the risk of manganese-induced neurotoxicity of parenteral nutrition: review of the current literature. Expert Opin Drug Metab Toxicol 2021; 17:581-593. [PMID: 33620266 PMCID: PMC8122055 DOI: 10.1080/17425255.2021.1894123] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/19/2021] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Several diseases and clinical conditions can affect enteral nutrition and adequate gastrointestinal uptake. In this respect, parenteral nutrition (PN) is necessary for the provision of deficient trace elements. However, some essential elements, such as manganese (Mn) may be toxic to children and adults when parenterally administered in excess, leading to toxic, especially neurotoxic effects. AREAS COVERED Here, we briefly provide an overview on Mn, addressing its sources of exposure, the role of Mn in the etiology of neurodegenerative diseases, and focusing on potential mechanisms associated with Mn-induced neurotoxicity. In addition, we discuss the potential consequences of overexposure to Mn inherent to PN. EXPERT OPINION In this critical review, we suggest that additional research is required to safely set Mn levels in PN, and that eliminating Mn as an additive should be considered by physicians and nutritionists on a case by case basis in the meantime to avoid the greater risk of neurotoxicity by its presence. There is a need to better define clinical biomarkers for Mn toxicity by PN, as well as identify new effective agents to treat Mn-neurotoxicity. Moreover, we highlight the importance of the development of new guidelines and practice safeguards to protect patients from excessive Mn exposure and neurotoxicity upon PN administration.
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Affiliation(s)
- Airton C. Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Silvana Ruella Oliveira
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, Brazil
| | - Fernando Barbosa
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo-USP, Ribeirão Preto, Brazil
| | - Alexey A. Tinkov
- Yaroslavl State University, Yaroslavl, Russia
- IM Sechenov First Moscow State Medical University, Moscow, Russia
| | - Anatoly V
- IM Sechenov First Moscow State Medical University, Moscow, Russia
- Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, Orenburg, Russia
| | - Abel Santamaría
- Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
| | - Eunsook Lee
- Department of Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - Aaron B. Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
- IM Sechenov First Moscow State Medical University, Moscow, Russia
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102
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Kulkarni N, Gadde R, Gugnani KS, Vu N, Yoo C, Zaveri R, Betharia S. Neuroprotective effects of disubstituted dithiolethione ACDT against manganese-induced toxicity in SH-SY5Y cells. Neurochem Int 2021; 147:105052. [PMID: 33905764 DOI: 10.1016/j.neuint.2021.105052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/05/2021] [Accepted: 04/21/2021] [Indexed: 11/17/2022]
Abstract
Dithiolethiones are lipophilic, organosulfur compounds that activate the Nrf2 transcription factor causing an upregulation of various phase II antioxidant enzymes. A disubstituted dithiolethione 5-amino-3-thioxo-3H-(1,2) dithiole-4-carboxylic acid ethyl ester (ACDT) retains the functional pharmacophore while also containing modifiable functional groups. Neuroprotection against autoimmune encephalomyelitis in vivo and 6-hydroxy dopamine (a model for Parkinson's disease) in vitro have been previously reported with ACDT. Manganese (Mn) is a metal essential for metabolic processes at low concentrations. Overexposure and accumulation of Mn leads to a neurological condition called manganism which shares pathophysiological sequelae with parkinsonism. Here we hypothesized ACDT to be protective against manganese-induced cytotoxicity. SH-SY5Y human neuroblastoma cells exposed to 300 μM MnCl2 displayed approximately 50% cell death, and a 24-h pretreatment with 75 μM ACDT significantly reversed this cytotoxicity. ACDT pretreatment was also found to increase total GSH levels (2.18-fold) and the protein levels of NADPH:quinone oxidoreductase-1 (NQO1) enzyme (6.33-fold), indicating an overall increase in the cells' antioxidant defense stores. A corresponding 2.32-fold reduction in the level of Mn-induced reactive oxygen species was also observed in cells pretreated with ACDT. While no changes were observed in the protein levels of apoptotic markers Bax and Bcl-2, pretreatment with 75 μM ACDT led to a 2.09-fold downregulation of ZIP14 import transporter, indicating a potential reduction in the cellular uptake of Mn as an additional neuroprotective mechanism. These effects did not extend to other transporters like the divalent metal transporter 1 (DMT1) or ferroportin. Collectively, ACDT showed substantial neuroprotection against Mn-induced cytotoxicity, opening a path for dithiolethiones as a potential novel therapeutic option against heavy metal neurotoxicity.
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Affiliation(s)
- Neha Kulkarni
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA.
| | - Rajitha Gadde
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
| | - Kuljeet S Gugnani
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
| | - Nguyen Vu
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
| | - Claude Yoo
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
| | - Rohan Zaveri
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
| | - Swati Betharia
- Department of Pharmaceutical Sciences, MCPHS University, School of Pharmacy, 179 Longwood Avenue, Boston, MA, 02115, USA
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103
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Fu X, Chen S, Wang X, Shen Y, Zeng R, Wu Q, Lu Y, Shi J, Zhou S. Dendrobium nobile Lindl. alkaloids alleviate Mn-induced neurotoxicity via PINK1/Parkin-mediated mitophagy in PC12 cells. Biochem Biophys Rep 2021; 26:100877. [PMID: 33889759 PMCID: PMC8047462 DOI: 10.1016/j.bbrep.2020.100877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/29/2020] [Accepted: 12/09/2020] [Indexed: 11/12/2022] Open
Abstract
Modern pharmacological studies have demonstrated that Dendrobium nobile Lindl. Alkaloids (DNLA), the main active ingredients of Dendrobium nobile, is valuable as an anti-aging and neuroprotective herbal medicine. The present study was designed to determine whether DNLA confers protective function over neurotoxicant manganese (Mn)-induced cytotoxicity and the mechanism involved. Our results showed that pretreatment of PC12 cells with DNLA alleviated cell toxicity induced by Mn and improved mitochondrial respiratory capacity and oxidative status. Mn treatment increased apoptotic cell death along with a marked increase in the protein expression of Bax and a decrease in the expression of Bcl-2 protein, all of which were noticeably reversed by DNLA. Furthermore, DNLA significantly abolished the decrease in protein levels of both PINK1 and Parkin, and mitigated the increased expression of autophagy marker LC3-II and accumulation of p62 caused by Mn. These results demonstrate that DNLA inhibits Mn induced cytotoxicity, which may be mediated through modulating PINK1/Parkin-mediated autophagic flux and improving mitochondrial function. Dendrobium nobile Lindl. alkaloids (DNLA) significantly alleviate cytotoxicity of PC12 cells induced by manganese (Mn) and improve mitochondrial function. Activation of PINK1/Parkin-mediated autophagic flux is involved in the protective action of DNLA on Mn-induced neurotoxicity. DNLA reduces Mn-induced ROS generation and suppresses Mn-induced apoptosis.
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Affiliation(s)
- Xiaolong Fu
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shu Chen
- Cell and Tissue Bank of Guizhou Province, Zunyi, Guizhou, China
| | - Xueting Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yanhua Shen
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Ru Zeng
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yuanfu Lu
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jingshan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shaoyu Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education, Zunyi Medical University, Zunyi, Guizhou, China.,Joint International Research Laboratory of Ethnomedicine, Zunyi Medical University, Zunyi, Guizhou, China.,Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, China
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104
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Thawkar BS, Kaur G. Zebrafish as a Promising Tool for Modeling Neurotoxin-Induced Alzheimer's Disease. Neurotox Res 2021; 39:949-965. [PMID: 33687726 DOI: 10.1007/s12640-021-00343-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 12/01/2022]
Abstract
Drug discovery and development for Alzheimer's disease (AD) are complex and challenging due to the higher failure rate in the drug development process. The overproduction and deposition of Aβ senile plaque and intracellular neurofibrillary tangle (NFT) formation are well-recognized diagnostic hallmarks of AD. Numerous transgenic models of Alzheimer's disease have restrictions on cost-effectiveness and time in the preclinical setup. Zebrafish has emerged as an excellent complementary model for neurodegenerative research due to simpler organisms with robust, clearly visible behavior forms. Glutaminergic and cholinergic pathways responsible for learning and memory are present in zebrafish and actively participate in the transmission process. Therefore, it is imperative to study neurotoxic agents' mechanisms that induce dysfunction of memory, learning, and neurons in the zebrafish. This review illustrates the in-depth molecular mechanism of several neurotoxic agents such as okadaic acid, cigarette smoke extract, and metals to produce cognitive deficits or neurodegeneration similar to mammals. These updates would determine an ideal and effective neurotoxic agent for producing AD pathophysiology in the zebrafish brain for preclinical screening.
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Affiliation(s)
- Baban S Thawkar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), 400056, Mumbai, India
| | - Ginpreet Kaur
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), 400056, Mumbai, India.
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105
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Solmaz V, Köse Özlece H, Fatih Bozkurt M, Özkul B, Erbaş O. Repeated gadoteric acid and gadobutrol exposure causes deterioration of behavior and memory functions in rats: MRI, histopathological and biochemical evidence. Brain Res 2021; 1754:147256. [PMID: 33422532 DOI: 10.1016/j.brainres.2020.147256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/23/2020] [Accepted: 12/18/2020] [Indexed: 11/15/2022]
Abstract
Gadolinium-based contrast agents (GBCAs) exert effects in different regions of the brain; however, studies on this topic are mostly focused on radiological outcomes of GBCA exposure. This paper is a preliminary attempt to identify whether there are changes in behavioral, cognitive, histopathological, radiological and biochemical characteristics with repeated exposure to gadobutrol and gadoteric acid. The effects of GBCAs were tested with the assessment of 4 groups -each comprised of 6 rats [controls, gadobutrol, gadoteric acid (Doteram), and gadoteric acid (Clariscan)]. Respective treatments of 0.1 ml/kg were administered for 3 weeks, followed by a recovery period of 1 week without any treatment. At the end of this regimen, behavioral tests (open field and passive learning test) were performed. Additionally, histopathological analysis of the hippocampal CA1 and CA3 regions (GFAP measurement and total neuron count), biochemical measurements [TNF-a, Malondialdehyde (MDA), Superoxide dismutase (SOD), homovalinic acid (HVA) and choline acetyl transferase (ChAT) levels], and radiological findings (MRI-region of interest) were carried out in each group. There was a significant impairment in all groups that had received gadolinium in open field and passive avoidance learning tests. Oxidative stress and inflammation markers were significantly elevated in all gadolinium groups. Additionally, increased hippocampal gliosis and decreased MRI-ROIs were observed in rats exposed to gadolinium. Chronic gadoteric acid and gadobutrol exposure causes hippocampal gliosis and elevates oxidative stress and inflammation in rats. Radiological outcomes are also consistent with these findings. Long-term studies might be required to conclude whether gadolinium deposition in the brain causes subtle neurological deficits.
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Affiliation(s)
- Volkan Solmaz
- Memorial Hizmet Hospital, Neurology Clinic, Istanbul, Turkey.
| | | | | | - Bahattin Özkul
- Demiroğlu Bilim University Medical Faculty, Department of Radiology, Afyon, Turkey
| | - Oytun Erbaş
- Demiroğlu Bilim University Medical School, Department of Physiology, İstanbul, Turkey
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106
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Kapoor D, Garg D, Sharma S, Goyal V. Inherited Manganese Disorders and the Brain: What Neurologists Need to Know. Ann Indian Acad Neurol 2021; 24:15-21. [PMID: 33911374 PMCID: PMC8061520 DOI: 10.4103/aian.aian_789_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 11/04/2022] Open
Abstract
Although acquired manganese neurotoxicity has been widely reported since its first description in 1837 and is popularly referred to as "manganism," inherited disorders of manganese homeostasis have received the first genetic signature as recently as 2012. These disorders, predominantly described in children and adolescents, involve mutations in three manganese transporter genes, i.e., SLC30A10 and SLC39A14 which lead to manganese overload, and SLC39A8, which leads to manganese deficiency. Both disorders of inherited hypermanganesemia typically exhibit dystonia and parkinsonism with relatively preserved cognition and are differentiated by the occurrence of polycythemia and liver involvement in the SLC30A10-associated condition. Mutations in SLC39A8 lead to a congenital disorder of glycosylation which presents with developmental delay, failure to thrive, intellectual impairment, and seizures due to manganese deficiency. Chelation with iron supplementation is the treatment of choice in inherited hypermanganesemia. In this review, we highlight the pathognomonic clinical, laboratory, imaging features and treatment modalities for these rare disorders.
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Affiliation(s)
- Dipti Kapoor
- Department of Pediatrics (Neurology Division), Lady Hardinge Medical College and Kalawati Saran Children's Hospital, New Delhi, India
| | - Divyani Garg
- Department of Neurology, Lady Hardinge Medical College and Smt. Sucheta Kriplani Hospital, New Delhi, India
| | - Suvasini Sharma
- Department of Pediatrics (Neurology Division), Lady Hardinge Medical College and Kalawati Saran Children's Hospital, New Delhi, India
| | - Vinay Goyal
- Institute of Neurosciences, Medanta Medicity, Gurgaon, Haryana, India
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107
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Sun Y, Yin Y, Gong L, Liang Z, Zhu C, Ren C, Zheng N, Zhang Q, Liu H, Liu W, You F, Lu D, Lin Z. Manganese nanodepot augments host immune response against coronavirus. NANO RESEARCH 2021; 14:1260-1272. [PMID: 33391623 PMCID: PMC7770383 DOI: 10.1007/s12274-020-3243-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/03/2020] [Accepted: 11/14/2020] [Indexed: 05/11/2023]
Abstract
UNLABELLED Interferon (IFN) responses are central to host defense against coronavirus and other virus infections. Manganese (Mn) is capable of inducing IFN production, but its applications are limited by nonspecific distributions and neurotoxicity. Here, we exploit chemical engineering strategy to fabricate a nanodepot of manganese (nanoMn) based on Mn2+. Compared with free Mn2+, nanoMn enhances cellular uptake and persistent release of Mn2+ in a pH-sensitive manner, thus strengthening IFN response and eliciting broad-spectrum antiviral effects in vitro and in vivo. Preferentially phagocytosed by macrophages, nanoMn promotes M1 macrophage polarization and recruits monocytes into inflammatory foci, eventually augmenting antiviral immunity and ameliorating coronavirus-induced tissue damage. Besides, nanoMn can also potentiate the development of virus-specific memory T cells and host adaptive immunity through facilitating antigen presentation, suggesting its potential as a vaccine adjuvant. Pharmacokinetic and safety evaluations uncover that nanoMn treatment hardly induces neuroinflammation through limiting neuronal accumulation of manganese. Therefore, nanoMn offers a simple, safe, and robust nanoparticle-based strategy against coronavirus. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (RNA-seq data analysis, IFN and ISGs examination, in vitro viral infection, flow cytometry, ICP-MS, DHE staining, and detection of inflammatory factors) is available in the online version of this article at 10.1007/s12274-020-3243-5.
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Affiliation(s)
- Yizhe Sun
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Yue Yin
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Lidong Gong
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Zichao Liang
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Chuanda Zhu
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Caixia Ren
- Department of Human Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing, 100191 China
| | - Nan Zheng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), National Drug Clinical Trial Center, Peking University Cancer Hospital & Institute, Beijing, 100142 China
| | - Qiang Zhang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, 100191 China
| | - Haibin Liu
- Department of General Surgery, Xinjiang Production and Construction Corps Hospital, Urumchi, Xinjiang Uygur Autonomous Region, 830002 China
| | - Wei Liu
- Department of General Surgery, Xinjiang Production and Construction Corps Hospital, Urumchi, Xinjiang Uygur Autonomous Region, 830002 China
| | - Fuping You
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Dan Lu
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, Department of Pathology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, Peking-Tsinghua Center for Life Sciences, Peking University Health Science Center, Beijing, 100191 China
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108
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Baj J, Forma A, Sitarz E, Karakuła K, Flieger W, Sitarz M, Grochowski C, Maciejewski R, Karakula-Juchnowicz H. Beyond the Mind-Serum Trace Element Levels in Schizophrenic Patients: A Systematic Review. Int J Mol Sci 2020; 21:ijms21249566. [PMID: 33334078 PMCID: PMC7765526 DOI: 10.3390/ijms21249566] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/06/2020] [Accepted: 12/12/2020] [Indexed: 12/19/2022] Open
Abstract
The alterations in serum trace element levels are common phenomena observed in patients with different psychiatric conditions such as schizophrenia, autism spectrum disorder, or major depressive disorder. The fluctuations in the trace element concentrations might act as potential diagnostic and prognostic biomarkers of many psychiatric and neurological disorders. This paper aimed to assess the alterations in serum trace element concentrations in patients with a diagnosed schizophrenia. The authors made a systematic review, extracting papers from the PubMed, Web of Science, and Scopus databases according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Among 5009 articles identified through database searching, 59 of them were assessed for eligibility. Ultimately, 33 articles were included in the qualitative synthesis. This review includes the analysis of serum levels of the following trace elements: iron, nickel, molybdenum, phosphorus, lead, chromium, antimony, uranium, magnesium, aluminum, zinc, copper, selenium, calcium, and manganese. Currently, there is no consistency regarding serum trace element levels in schizophrenic patients. Thus, it cannot be considered as a reliable prognostic or diagnostic marker of schizophrenia. However, it can be assumed that altered concentrations of those elements are crucial regarding the onset and exaggeration of either psychotic or negative symptoms or cognitive dysfunctions.
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Affiliation(s)
- Jacek Baj
- Department of Human Anatomy, Medical University of Lublin, 20-400 Lublin, Poland;
- Correspondence:
| | - Alicja Forma
- Chair and Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Elżbieta Sitarz
- Chair and 1st Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, Gluska Street 1, 20-439 Lublin, Poland; (E.S.); (K.K.); (H.K.-J.)
| | - Kaja Karakuła
- Chair and 1st Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, Gluska Street 1, 20-439 Lublin, Poland; (E.S.); (K.K.); (H.K.-J.)
| | - Wojciech Flieger
- Faculty of Medicine, Medical University of Lublin, Aleje Racławickie 1, 20-059 Lublin, Poland;
| | - Monika Sitarz
- Department of Conservative Dentistry with Endodontics, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Cezary Grochowski
- Laboratory of Virtual Man, Chair of Anatomy, Medical University of Lublin, 20-400 Lublin, Poland;
| | - Ryszard Maciejewski
- Department of Human Anatomy, Medical University of Lublin, 20-400 Lublin, Poland;
| | - Hanna Karakula-Juchnowicz
- Chair and 1st Department of Psychiatry, Psychotherapy and Early Intervention, Medical University of Lublin, Gluska Street 1, 20-439 Lublin, Poland; (E.S.); (K.K.); (H.K.-J.)
- Department of Clinical Neuropsychiatry, Medical University of Lublin, Gluska Street 1, 20-439 Lublin, Poland
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109
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Manganese Accumulation in the Brain via Various Transporters and Its Neurotoxicity Mechanisms. Molecules 2020; 25:molecules25245880. [PMID: 33322668 PMCID: PMC7763224 DOI: 10.3390/molecules25245880] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/11/2022] Open
Abstract
Manganese (Mn) is an essential trace element, serving as a cofactor for several key enzymes, such as glutamine synthetase, arginase, pyruvate decarboxylase, and mitochondrial superoxide dismutase. However, its chronic overexposure can result in a neurological disorder referred to as manganism, presenting symptoms similar to those inherent to Parkinson’s disease. The pathological symptoms of Mn-induced toxicity are well-known, but the underlying mechanisms of Mn transport to the brain and cellular toxicity leading to Mn’s neurotoxicity are not completely understood. Mn’s levels in the brain are regulated by multiple transporters responsible for its uptake and efflux, and thus, dysregulation of these transporters may result in Mn accumulation in the brain, causing neurotoxicity. Its distribution and subcellular localization in the brain and associated subcellular toxicity mechanisms have also been extensively studied. This review highlights the presently known Mn transporters and their roles in Mn-induced neurotoxicity, as well as subsequent molecular and cellular dysregulation upon its intracellular uptakes, such as oxidative stress, neuroinflammation, disruption of neurotransmission, α-synuclein aggregation, and amyloidogenesis.
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110
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Lucchini RG, Guazzetti S, Renzetti S, Broberg K, Caci M, Covolo L, Crippa P, Gelatti U, Hashim D, Oppini M, Pepe F, Pilotto A, Passeri C, Placidi D, Rizzetti MC, Turla M, Wahlberg K, Padovani A. Metal Exposure and SNCA rs356219 Polymorphism Associated With Parkinson Disease and Parkinsonism. Front Neurol 2020; 11:556337. [PMID: 33362685 PMCID: PMC7755861 DOI: 10.3389/fneur.2020.556337] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 11/13/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: In the province of Brescia, Italy, historical neurotoxic metal exposure has occurred for several decades. This study aimed to explore the role of metal exposure and genetics on Parkinson's Disease (PD) and Parkinsonism. Methods: Cases were enrolled from four local clinics for movement disorders. Randomly selected controls non-affected by neurological or psychiatric conditions were enrolled from the same health centers keeping a similar gender ratio and age distribution as for cases. Data on sociodemographic variables, clinical onset and life habits were collected besides accurate occupational and residential history. Blood samples were collected from all participants for genotyping of target polymorphisms in genes linked to PD and/or metal transport. Results: A total number of 432 cases and 444 controls were enrolled in the study, with average age of 71 years (72.2 for cases and 70 for controls). The average age at diagnosis was 65.9 years (SD 9.9). Among the potential risk factors, family history of PD or Parkinsonism showed the strongest association with the diseases (OR = 4.2, 95% CI 2.3, 7.6 on PD; OR = 4.3, 95% CI 1.9, 9.5 for Parkinsonism), followed by polymorphism rs356219 in the alpha-synuclein (SNCA) gene (OR = 2.03, 95% CI 1.3, 3.3 for CC vs. TT on PD; OR = 2.5, 95% CI 1.1, 5.3 for CC vs. TT on Parkinsonism), exposure to metals (OR = 2.4;, 95% CI 1.3, 4.2 on PD), being born in a farm (OR = 1.8; 95% CI 1.1, 2.8 on PD; OR = 2.6; 95% CI 1.4, 4.9 on Parkinsonism) and being born in the province of Brescia (OR = 1.7; 95% CI 1.0, 2.9 on PD). Conditional OR of having PD depending by SNCA polymorphism and metal exposure highlights higher risk of PD among CC SNCA carriers and being exposed to metals. However, the interaction term was not statistically significant. Conclusions: Lifetime exposure to metals and genetic variation in SNCA gene are relevant determinants of PD and Parkinsonism in the highly industrialized area of Brescia, Italy. The lack of evidence of statistical interaction between environmental and genetic factors may be due to the low frequencies of subjects representing the exposure categories and the polymorphism variants and does not rule out the biological interaction.
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Affiliation(s)
- Roberto G. Lucchini
- Robert Stempel College of Public Health, Florida International University, Miami, FL, United States
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | | | - Stefano Renzetti
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Karin Broberg
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden
| | - Margherita Caci
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Loredana Covolo
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | | | - Umberto Gelatti
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Dana Hashim
- Hematology & Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Manuela Oppini
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Fulvio Pepe
- Neurology, Poliambulanza Foundation, Brescia, Italy
| | - Andrea Pilotto
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
- Parkinson Rehabilitation Center, Ospedale S. Isidoro - FERB Onlus, Trescore Balneario, Bergamo, Italy
| | - Chiara Passeri
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Donatella Placidi
- Department of Medical Surgical Specialities, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Maira Cristina Rizzetti
- Parkinson Rehabilitation Center, Ospedale S. Isidoro - FERB Onlus, Trescore Balneario, Bergamo, Italy
| | | | - Karin Wahlberg
- Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
| | - Alessandro Padovani
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
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111
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Ijomone OM, Ijomone OK, Iroegbu JD, Ifenatuoha CW, Olung NF, Aschner M. Epigenetic influence of environmentally neurotoxic metals. Neurotoxicology 2020; 81:51-65. [PMID: 32882300 PMCID: PMC7708394 DOI: 10.1016/j.neuro.2020.08.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/25/2020] [Accepted: 08/25/2020] [Indexed: 02/08/2023]
Abstract
Continuous globalization and industrialization have ensured metals are an increasing aspect of daily life. Their usefulness in manufacturing has made them vital to national commerce, security and global economy. However, excess exposure to metals, particularly as a result of environmental contamination or occupational exposures, has been detrimental to overall health. Excess exposure to several metals is considered environmental risk in the aetiology of several neurological and neurodegenerative diseases. Metal-induced neurotoxicity has been a major health concern globally with intensive research to unravel the mechanisms associated with it. Recently, greater focus has been directed at epigenetics to better characterize the underlying mechanisms of metal-induced neurotoxicity. Epigenetic changes are those modifications on the DNA that can turn genes on or off without altering the DNA sequence. This review discusses how epigenetic changes such as DNA methylation, post translational histone modification and noncoding RNA-mediated gene silencing mediate the neurotoxic effects of several metals, focusing on manganese, arsenic, nickel, cadmium, lead, and mercury.
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Affiliation(s)
- Omamuyovwi M Ijomone
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria.
| | - Olayemi K Ijomone
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria; Department of Anatomy, University of Medical Sciences, Ondo, Nigeria
| | - Joy D Iroegbu
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Chibuzor W Ifenatuoha
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Nzube F Olung
- The Neuro- Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Michael Aschner
- Departments of Molecular Pharmacology and Neurosciences, Albert Einstein College of Medicine, NY, USA.
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Werder EJ, Engel LS, Curry MD, Sandler DP. Selenium modifies associations between multiple metals and neurologic symptoms in Gulf states residents. Environ Epidemiol 2020; 4:e115. [PMID: 33336134 PMCID: PMC7727467 DOI: 10.1097/ee9.0000000000000115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/23/2020] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Metals have been shown to have a wide range of neurologic effects across the life course, but most studies consider neurodevelopment or neurodegenerative diseases in older adults. We investigated exposure to metals during adulthood in association with subclinical neurologic endpoints, considering the metals individually and as a mixture, and potential interactions among exposures. METHODS We measured blood levels of cadmium, lead, mercury, manganese, and selenium in 1007 Gulf state residents and estimated cross-sectional associations between ranked levels of blood metals and the presence of self-reported neurologic symptoms. Single pollutant models were mutually adjusted for other metals and we used quantile g-computation to evaluate associations with exposure to the combined mixture. In stratified analyses, we assessed heterogeneity by smoking and blood selenium. RESULTS The highest quartile of cadmium was associated with a higher prevalence of central nervous system symptoms (prevalence ratio [PR] = 1.50; 95% confidence interval [CI] = 1.13, 1.99), with stronger associations among nonsmokers (PR = 1.63; 95% CI = 1.11, 2.38) and those with low selenium (PR = 2.29, 95% CI = 1.50, 3.49). Selenium also modified associations between lead and peripheral nervous system symptoms, with increased symptoms in the low selenium group at all quartiles of exposure (P-trend = 0.07). Conversely, those with the highest co-exposure to mercury and selenium had reduced neurologic symptoms (PR = 0.73, 95% CI = 0.55, 0.96). Results of the mixture analysis were consistent with single chemical results. CONCLUSIONS Cadmium exhibited the most consistent relationship with increased neurologic symptoms, though lead was an important exposure in subgroup analyses. Selenium may modify subclinical neurotoxic effects of metals at non-occupational levels in adults.
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Affiliation(s)
- Emily J. Werder
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, North Carolina
| | - Lawrence S. Engel
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, North Carolina
- Department of Epidemiology, UNC Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | | | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, North Carolina
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Sharma S, Wakode S, Sharma A, Nair N, Dhobi M, Wani MA, Pottoo FH. Effect of environmental toxicants on neuronal functions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:44906-44921. [PMID: 32996088 DOI: 10.1007/s11356-020-10950-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 09/20/2020] [Indexed: 05/22/2023]
Abstract
In the last few years, neurodegenerative diseases like Alzheimer's disease (AD) and Parkinson's disease (PD) have attracted attention due to their high prevalence worldwide. Environmental factors may be one of the biggest reasons for these diseases related to neuronal dysfunctions. Most of neuronal disorders are strongly associated with pre- and postnatal exposure to environmental toxins released from industries. Some of the neurotoxic metals such as lead, aluminum, mercury, manganese, cadmium, and arsenic as well as some pesticides and metal-based nanoparticles have been involved in AD and PD due to their ability to produce senile/amyloid plaques and NFTs which are the main feature of these neuronal dysfunctions. Exposure to solvents is also majorly responsible for neurodegenerative disorders. The present review highlights the impact of omnipresent heavy metals with some other neurotoxins on human health and how they give rise to neuronal dysfunctions which in turn causes socio-economic consequences due to increasing pollution worldwide. Graphical abstract.
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Affiliation(s)
- Supriya Sharma
- Department of Pharmacognosy, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB road, Pushp Vihar, New Delhi, 110017, India
| | - Sharad Wakode
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB road, Pushp Vihar, New Delhi, 110017, India
| | - Anjali Sharma
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB road, Pushp Vihar, New Delhi, 110017, India
| | - Nisha Nair
- Department of Pharmaceutical Chemistry, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB road, Pushp Vihar, New Delhi, 110017, India
| | - Mahaveer Dhobi
- Department of Pharmacognosy, Delhi Pharmaceutical Sciences and Research University, Sector-3, MB road, Pushp Vihar, New Delhi, 110017, India
| | - Mushtaq Ahmad Wani
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Kolkata, 163, Maniktala Main road, Kolkata, 700054, India
| | - Faheem Hyder Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O.BOX 1982, Damman, 31441, Saudi Arabia.
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Mitchell EJ, Frisbie SH, Roudeau S, Carmona A, Ortega R. Estimating daily intakes of manganese due to breast milk, infant formulas, or young child nutritional beverages in the United States and France: Comparison to sufficiency and toxicity thresholds. J Trace Elem Med Biol 2020; 62:126607. [PMID: 32683229 DOI: 10.1016/j.jtemb.2020.126607] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/16/2020] [Accepted: 06/30/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Although manganese (Mn) is an essential nutrient, recent research has revealed that excess Mn in early childhood may have adverse effects on neurodevelopment. METHODS We estimated daily total Mn intake due to breast milk at average body weights by reviewing reported concentrations of breast milk Mn and measurements of body weight and breast milk intake at 3 weeks, 4.25 months, 7 months, and 18 months. We compared these figures to the Mn content measured in 44 infant, follow-up, and toddler formulas purchased in the United States and France. We calculated Mn content of formula products made with ultra-trace elemental analysis grade water (0 μg Mn/L) and with water containing 250 μg Mn/L, a concentration which is relatively high but less than the World Health Organization Health-based value of 400 μg Mn/L or the United States Environmental Protection Agency Health Advisory of 350 μg Mn/L. RESULTS Estimated mean daily Mn intake from breast milk ranged from 1.2 μg Mn/kg/day (3 weeks) to 0.16 μg Mn/kg/day (18 months), with the highest intakes at the youngest age stage we considered, 3 weeks. Estimated daily Mn intake from formula products reconstituted with 0 μg Mn/L water ranged from 130 μg Mn/kg/day (3 weeks) to 4.8 μg Mn/kg/day (18 months) with the highest intakes at 3 weeks. Formula products provided 28-520 times greater than the mean daily intake of Mn from breast milk for the 4 age stages that we considered. Estimated daily Mn intake from formula products reconstituted with water containing 250 μg Mn/L ranged from 12 μg Mn/kg/day to 170 μg Mn/kg/day, which exceeds the United States Environmental Protection Agency Reference Dose of 140 μg Mn/kg/day for adults. CONCLUSIONS Mn deficiency is highly unlikely with exclusive breast milk or infant formula feeding, but established tolerable daily intake levels for Mn may be surpassed by some of these products when following labeled instructions.
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Affiliation(s)
- Erika J Mitchell
- Better Life Laboratories, Inc., 293 George Road, East Calais, VT, USA.
| | - Seth H Frisbie
- Department of Chemistry and Biochemistry, Norwich University, Northfield, VT, USA.
| | - Stéphane Roudeau
- University of Bordeaux, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), UMR 5797, F-33170 Gradignan, France; Centre National de la Recherche Scientifique (CNRS), CENBG, UMR 5797, F-33170 Gradignan, France.
| | - Asuncion Carmona
- University of Bordeaux, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), UMR 5797, F-33170 Gradignan, France; Centre National de la Recherche Scientifique (CNRS), CENBG, UMR 5797, F-33170 Gradignan, France.
| | - Richard Ortega
- University of Bordeaux, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), UMR 5797, F-33170 Gradignan, France; Centre National de la Recherche Scientifique (CNRS), CENBG, UMR 5797, F-33170 Gradignan, France.
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115
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Ijomone OM, Olung NF, Akingbade GT, Okoh COA, Aschner M. Environmental influence on neurodevelopmental disorders: Potential association of heavy metal exposure and autism. J Trace Elem Med Biol 2020; 62:126638. [PMID: 32891009 PMCID: PMC7655547 DOI: 10.1016/j.jtemb.2020.126638] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023]
Abstract
Environmental factors have been severally established to play major roles in the pathogenesis of neurodevelopmental disorders including autism spectrum disorder (ASD). ASD is a neurodevelopmental disorder that is associated with symptoms that reduce the quality of life of affected individuals such as social interaction deficit, cognitive impairment, intellectual disabilities, restricted and repetitive behavioural patterns. ASD pathogenesis has been associated with environmental and genetic factors that alter physiologic processes during development. Here, we review literatures highlighting the environmental impact on neurodevelopmental disorders, and mechanisms by which environmental toxins may influence neurodevelopment. Furthermore, this review discusses reports highlighting neurotoxic metals (specifically, lead, mercury, cadmium, nickel and manganese) as environmental risk factors in the aetiology of ASD. This work, thus suggests that improving the environment could be vital in the management of ASD.
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Affiliation(s)
- Omamuyovwi M Ijomone
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria; Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria.
| | - Nzube F Olung
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Grace T Akingbade
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria; Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Comfort O A Okoh
- The Neuro- Lab, School of Health and Health Technology, Federal University of Technology, Akure, Nigeria
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, NY, USA; IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
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116
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Martins AC, Krum BN, Queirós L, Tinkov AA, Skalny AV, Bowman AB, Aschner M. Manganese in the Diet: Bioaccessibility, Adequate Intake, and Neurotoxicological Effects. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12893-12903. [PMID: 32298096 DOI: 10.1021/acs.jafc.0c00641] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Manganese (Mn) is an essential element that participates in several biological processes. Mn serves as a cofactor for several enzymes, such as glutamine synthetase and oxidoreductases, that have an important role in the defense of the organisms against oxidative stress. The diet is the main source of Mn intake for humans, and adequate daily intake levels for this metal change with age. Moreover, in higher amounts, Mn may be toxic, mainly to the brain. Here, we provide an overview of Mn occurrence in food, addressing its bioaccessibility and discussing the dietary standard and recommended intake of Mn consumption. In addition, we review some mechanisms underlying Mn-induced neurotoxicity.
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Affiliation(s)
- Airton C Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, United States
| | - Bárbara Nunes Krum
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, United States
- Post-Graduate Program in Pharmacology, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Libânia Queirós
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, United States
- Department of Molecular of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Alexey A Tinkov
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119146, Russia
- Yaroslavl State University Yaroslavl, 150003, Russia
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg 460000, Russia
| | - Anatoly V Skalny
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119146, Russia
- Yaroslavl State University Yaroslavl, 150003, Russia
| | - Aaron B Bowman
- School of Health Sciences, Purdue University, West Lafayette, Indiana 47907, United States
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, United States
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119146, Russia
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117
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Lin G, Li X, Cheng X, Zhao N, Zheng W. Manganese Exposure Aggravates β-Amyloid Pathology by Microglial Activation. Front Aging Neurosci 2020; 12:556008. [PMID: 33244298 PMCID: PMC7685005 DOI: 10.3389/fnagi.2020.556008] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023] Open
Abstract
Human epidemiological evidence and animal experimental data suggest that chronic manganese (Mn) exposure increases the risk of Alzheimer’s disease (AD) and amyloid plaques, a hallmark of AD brain pathology, but the underlying mechanisms were not fully understood. Using the transgenic APP/PS1/Tau triple transgenic AD (3×Tg-AD) mouse model and mouse-derived microglia and neuroblastoma cell lines, we found that chronic 5-month Mn treatment increased beta amyloid peptide (Aβ) expression and Aβ plaques in the cerebral cortex and hippocampus in these 3×Tg-AD mice. Furthermore, we found that the β- and γ-secretase cleavage activities were markedly increased, while α-secretase cleavage activity was reduced in the brain of Mn-treated AD mice; these effects increase Aβ production and thus are amyloidogenic. Equally important, Mn treatment alone did not alter β-secretase 1 (BACE1) gene expression or Aβ production in amyloidogenic mutant amyloid precursor protein (APP) gene hAPPsw-transfected N2a cells (APPsw-N2a), but in APPsw-N2a cells either co-cultured with microglia or cultured with microglia-conditioned media, Mn exposure increased BACE1 expression and amyloidogenesis. We further determined that Mn exposure promoted the activation of microglia both in 3×Tg-AD mouse brains and in cultured microglia cells, and increased the secretion of the inflammatory cytokines interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). Taken together, these results suggest that Mn may increase the release of IL-1β and TNF-α from microglia that in turn stimulates the expression of BACE1 gene and protein and consequently Aβ production; this novel molecular mechanism not only advances our understanding about the amyloidogenic effect of chronic Mn exposure reported for special human populations but also indicates Mn dyshomeostasis as a potential contributor to AD pathogenesis.
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Affiliation(s)
- Geng Lin
- Department of Histology and Embryology, China Medical University, Shenyang, China
| | - Xinlu Li
- Department of Histology and Embryology, China Medical University, Shenyang, China
| | - Xiaofeng Cheng
- Department of Histology and Embryology, China Medical University, Shenyang, China
| | - Ning Zhao
- Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Zheng
- Department of Histology and Embryology, China Medical University, Shenyang, China
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118
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Cannella N, Cosa-Linan A, Takahashi T, Weber-Fahr W, Spanagel R. Cocaine addicted rats show reduced neural activity as revealed by manganese-enhanced MRI. Sci Rep 2020; 10:19353. [PMID: 33168866 PMCID: PMC7653042 DOI: 10.1038/s41598-020-76182-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/29/2020] [Indexed: 11/09/2022] Open
Abstract
Cocaine addiction develops as a continuum from recreational to habitual and ultimately compulsive drug use. Cocaine addicts show reduced brain activity. However, it is not clear if this condition results from individual predisposing traits or is the result of chronic cocaine intake. A translational neuroimaging approach with an animal model distinguishing non-addict-like vs. addict-like animals may help overcome the limitations of clinical research by comparing controlled experimental conditions that are impossible to obtain in humans. Here we aimed to evaluate neuronal activity in freely moving rats by manganese enhanced magnetic resonance imaging in the 0/3crit model of cocaine addiction. We show that addict-like rats exhibit reduced neuronal activity compared to cocaine-naïve controls during the first week of abstinence. In contrast, cocaine-experienced non-addict-like rats maintained their brain activity at a level comparable to cocaine-naïve controls. We also evaluated brain activity during cocaine bingeing, finding a general reduction of brain activity in cocaine experienced rats independent of an addiction-like phenotype. These findings indicate that brain hypoactivity in cocaine addiction is associated with the development of compulsive use rather than the amount of cocaine consumed, and may be used as a potential biomarker for addiction that clearly distinguishes non-addict-like vs addict-like cocaine use.
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Affiliation(s)
- Nazzareno Cannella
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
| | - Alejandro Cosa-Linan
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
| | - Tatiane Takahashi
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Wolfgang Weber-Fahr
- Research Group Translational Imaging, Department of Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Kazimierska K, Biel W, Witkowicz R. Mineral Composition of Cereal and Cereal-Free Dry Dog Foods versus Nutritional Guidelines. Molecules 2020; 25:E5173. [PMID: 33172044 PMCID: PMC7664208 DOI: 10.3390/molecules25215173] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 12/18/2022] Open
Abstract
The aims of the present work are to estimate the nutritional value and to evaluate and compare the levels of macroelements (Ca, P, K, Na, Mg), microelements (Fe, Zn, Mn, Cu), heavy metals (Co, Cd, Pb, Mo, Cr, Ni), and their ratios in extruded complete foods for adult dogs, their compatibility with nutritional guidelines, as well as food profile similarity. Basic composition was determined according to Association of Official Analytical Chemists (AOAC). Analyses for elements were performed using an atomic absorption spectrometer. All the evaluated dry dog foods met the minimum recommended levels for protein and fat. Eighteen tested dog foods (60%) did not meet at least one recommendation of nutritional guidelines. Four dog foods exceeded the legal limit of Fe and five foods exceeded the legal limit of Zn; in one of them, Zn level was almost twice higher. Dog foods with insect protein exceeded the legal limit for Mn content. Eight dog foods had an inappropriate Ca:P ratio. Heavy metals were below detection limit in all analyzed dog foods. The results seem to show the need for regular feed analyses of the elemental composition in raw materials before introducing supplementation and for the monitoring of the mineral composition of finished pet food.
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Affiliation(s)
- Katarzyna Kazimierska
- Department of Monogastric Animal Sciences, Division of Animal Nutrition and Food, West Pomeranian University of Technology in Szczecin, 29 Klemensa Janickiego, 71270 Szczecin, Poland;
| | - Wioletta Biel
- Department of Monogastric Animal Sciences, Division of Animal Nutrition and Food, West Pomeranian University of Technology in Szczecin, 29 Klemensa Janickiego, 71270 Szczecin, Poland;
| | - Robert Witkowicz
- Department of Agroecology and Crop Production, University of Agriculture in Krakow, 21 Mickiewicza, 31120 Krakow, Poland;
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120
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Ruta LL, Farcasanu IC. Interaction between Polyphenolic Antioxidants and Saccharomyces cerevisiae Cells Defective in Heavy Metal Transport across the Plasma Membrane. Biomolecules 2020; 10:E1512. [PMID: 33158278 PMCID: PMC7694260 DOI: 10.3390/biom10111512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 10/24/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022] Open
Abstract
Natural polyphenols are compounds with important biological implications which include antioxidant and metal-chelating characteristics relevant for their antimicrobial, antitumor, or antiaging potential. The mechanisms linking polyphenols and heavy metals in their concerted actions on cells are not completely elucidated. In this study, we used the model eukaryotic microorganism Saccharomyces cerevisiae to detect the action of widely prevalent natural polyphenols on yeast cells defective in the main components involved in essential heavy metal transport across the plasma membrane. We found that caffeic and gallic acids interfered with Zn accumulation, causing delays in cell growth that were alleviated by Zn supplementation. The flavones morin and quercetin interfered with both Mn and Zn accumulation, which resulted in growth improvement, but supplemental Mn and especially Zn turned the initially benefic action of morin and quercetin into potential toxicity. Our results imply that caution is needed when administering food supplements or nutraceuticals which contain both natural polyphenols and essential elements, especially zinc.
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Affiliation(s)
| | - Ileana Cornelia Farcasanu
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, Sos. Panduri 90–92, 050663 Bucharest, Romania;
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Martin KV, Edmondson D, Cecil KM, Bezi C, Vance ML, McBride D, Haynes EN. Manganese Exposure and Neurologic Outcomes in Adult Populations. Neurol Clin 2020; 38:913-936. [PMID: 33040869 PMCID: PMC8978550 DOI: 10.1016/j.ncl.2020.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A review of published articles examining the effects of manganese exposure to workers and community residents shows adverse neurologic outcomes. Innovative biomarkers, including those from neuroimaging, were incorporated into many of these studies to assess both manganese exposure and neurologic outcomes. A variety of health effects were evaluated, including cognitive and motor impairments. Studies of community participants residing near manganese point sources show variability in outcomes, reflecting the complexities of exposure measurement, individual absorption, and assessment of neurologic effects. The aging population provides insight into the impacts of chronic exposure in younger populations.
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Affiliation(s)
- Kaitlin V Martin
- Department of Epidemiology, College of Public Health, University of Kentucky, 111 Washington Avenue Room 212C, Lexington, KY 40536, USA.
| | - David Edmondson
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Imaging Research Center, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 5033, Cincinnati, OH 45229, USA
| | - Kim M Cecil
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA; Imaging Research Center, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 5033, Cincinnati, OH 45229, USA; Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Cassandra Bezi
- Division of Infectious Diseases, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 7017, Cincinnati, OH 45229, USA
| | - Miriam Leahshea Vance
- Department of Epidemiology, College of Public Health, University of Kentucky, 111 Washington Avenue, Lexington, KY 40536, USA
| | - Dani McBride
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Erin N Haynes
- Department of Epidemiology, College of Public Health, University of Kentucky, 111 Washington Avenue Room 212G, Lexington, KY 40536, USA
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Ghosh R, Dubey S, Chatterjee S, Ghosh M, Ray BK, Benito-León J. Hypermanganesemia Induced Chorea and Cognitive Decline in a Tea Seller. Tremor Other Hyperkinet Mov (N Y) 2020; 10:45. [PMID: 33178484 PMCID: PMC7597573 DOI: 10.5334/tohm.537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 10/06/2020] [Indexed: 01/02/2023] Open
Abstract
Background Manganese associated neurotoxicity and neurodegeneration is quite rare yet established neurological disorder. This neurotoxic element has predilection for depositing in basal ganglia structures, manifesting mainly as parkinsonian and dystonic movement disorders with behavioral abnormalities. Case report We report a 40-year-old man who presented with a subacute onset bilateral, asymmetric hyperkinetic movement disorder (predominantly left sided chorea) with multi-domain cognitive impairment, dysarthria, and generalized rigidity. Clinical history and examination yielded multiple differential diagnoses including deposition and metabolic disorders, autoimmune and paraneoplastic encephalitis involving basal ganglia, and neurodegenerative disorders with chorea and cognitive impairment. However, magnetic resonance imaging was suggestive of paramagnetic substance deposition, which came out to be manganese after laboratory investigations. History, clinical examinations, and investigation results pointed towards a diagnosis of acquired hypermanganesemia due to over-ingestion of manganese containing substance (i.e., black tea). He was treated symptomatically and with chelation therapy (calcium disodium edetate). At the sixth month of follow-up, complete resolution of chorea, dysarthria and partial amelioration of rigidity were observed. His cognitive decline and behavioral abnormalities improved. Discussion This is probably the first reported case of acquired hypermanganesemia that presented as a combination of asymmetric chorea and cognitive dysfunction with atypical imaging characteristics. The clinical picture mimicked that of Huntington's disease. We highlight the potential deleterious effects of an apparently "benign" non-alcoholic beverage (i.e., black tea) on cerebral metabolism.
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Affiliation(s)
- Ritwik Ghosh
- Department of General Medicine, Burdwan Medical College and Hospital, Burdwan, West Bengal, IN
| | - Souvik Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Kolkata, IN
| | - Subhankar Chatterjee
- Department of General Medicine, Rajendra Institute of Medical Sciences, Ranchi, IN
| | - Mrinalkanti Ghosh
- Department of Radiology, Burdwan Medical College, Burdwan, West Bengal, IN
| | - Biman Kanti Ray
- Department of Neuromedicine, Bangur Institute of Neurosciences, Kolkata, IN
| | - Julián Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, ES
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, ES
- Department of Medicine, Complutense University, Madrid, ES
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Air Pollution-Related Brain Metal Dyshomeostasis as a Potential Risk Factor for Neurodevelopmental Disorders and Neurodegenerative Diseases. ATMOSPHERE 2020. [DOI: 10.3390/atmos11101098] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Increasing evidence links air pollution (AP) exposure to effects on the central nervous system structure and function. Particulate matter AP, especially the ultrafine (nanoparticle) components, can carry numerous metal and trace element contaminants that can reach the brain in utero and after birth. Excess brain exposure to either essential or non-essential elements can result in brain dyshomeostasis, which has been implicated in both neurodevelopmental disorders (NDDs; autism spectrum disorder, schizophrenia, and attention deficit hyperactivity disorder) and neurodegenerative diseases (NDGDs; Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, and amyotrophic lateral sclerosis). This review summarizes the current understanding of the extent to which the inhalational or intranasal instillation of metals reproduces in vivo the shared features of NDDs and NDGDs, including enlarged lateral ventricles, alterations in myelination, glutamatergic dysfunction, neuronal cell death, inflammation, microglial activation, oxidative stress, mitochondrial dysfunction, altered social behaviors, cognitive dysfunction, and impulsivity. Although evidence is limited to date, neuronal cell death, oxidative stress, and mitochondrial dysfunction are reproduced by numerous metals. Understanding the specific contribution of metals/trace elements to this neurotoxicity can guide the development of more realistic animal exposure models of human AP exposure and consequently lead to a more meaningful approach to mechanistic studies, potential intervention strategies, and regulatory requirements.
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Jen HI, Lin ZY, Guo JX, Lee CI. The Effects of Divalent Cation-Chelated Prion Fibrils on the Immune Response of EOC 13.31 Microglia Cells. Cells 2020; 9:E2285. [PMID: 33066249 PMCID: PMC7602007 DOI: 10.3390/cells9102285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/29/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
Transmissible spongiform encephalopathies (TSEs) are epidemic neurodegenerative diseases caused by prion proteins; in particular, they are induced by misfolded prion proteins (PrPSc). PrPSc tend to aggregate into insoluble amyloid prion fibrils (fPrPWT), resulting in apoptosis of neuron cells and sequential neurodegeneration. Previous studies indicate that microglia cells play an important role in the innate immune system, and that these cells have good neuroprotection and delay the onset of TSEs. However, microglia can be a double-sided blade. For example, both Cu2+ and Mn2+ can induce microglia activation and secrete many inflammatory cytokines that are fatal to neuron cells. Unfortunately, PrP have cation binding sites at the N-terminus. When PrPSc accumulate during microglial phagocytosis, microglia may change the phenotype to secrete pro-inflammation cytokines, which increases the severity of the disease. Some studies have revealed an increase in the concentration of Mn2+ in the brains of patients. In this study, we treated microglia with fPrPWT and cations and determined IκBα and IL-1β expression by Western blotting and quantitative polymerase chain reaction. The results showed that Mn-fPrPWT decreased IκBα levels and dramatically increased IL-1β mRNA expression. In addition, competing binding between Cu2+ and Mn2+ can decrease the effect of Mn-fPrPWT on IκBα and IL-1β. The effects of divalent cations and fPrPWT in microglia inflammation are also discussed.
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Affiliation(s)
- Huan-I Jen
- Department of Biomedical Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung Chia-Yi 62102, Taiwan; (H.-I.J.); (Z.-Y.L.); (J.-X.G.)
| | - Zih-You Lin
- Department of Biomedical Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung Chia-Yi 62102, Taiwan; (H.-I.J.); (Z.-Y.L.); (J.-X.G.)
| | - Jin-Xun Guo
- Department of Biomedical Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung Chia-Yi 62102, Taiwan; (H.-I.J.); (Z.-Y.L.); (J.-X.G.)
| | - Cheng-I Lee
- Department of Biomedical Sciences, National Chung Cheng University, 168 University Road, Min-Hsiung Chia-Yi 62102, Taiwan; (H.-I.J.); (Z.-Y.L.); (J.-X.G.)
- Center for Nano Bio-Detections, National Chung Cheng University, Min-Hsiung Chia-Yi 62102, Taiwan
- Center for Innovative Research on Aging Society (CIRAS), National Chung Cheng University, Min-Hsiung Chia-Yi 62102, Taiwan
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Hernández-Plata I, Rodríguez VM, Tovar-Sánchez E, Carrizalez L, Villalobos P, Mendoza-Trejo MS, Mussali-Galante P. Metal brain bioaccumulation and neurobehavioral effects on the wild rodent Liomys irroratus inhabiting mine tailing areas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:36330-36349. [PMID: 32556984 DOI: 10.1007/s11356-020-09451-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
Ecotoxicological studies are necessary in order to evaluate the effects of environmental exposure of chemicals on wild animals and their ecological consequences. Particularly, neurobehavioral effects of heavy metal elements on wild rodents have been scarcely investigated. In the present study, we analyzed the effect of metal bioaccumulation (Pb, As, Mg, Ni, and Zn) in the brain and in the liver on exploratory activity, learning, memory, and on some dopaminergic markers in the wild rodent Liomys irroratus living inside mine tailings, at Huautla, Morelos, Mexico. We found higher Pb concentration but lower Zn in striatum, nucleus accumbens, midbrain, and hippocampus in exposed animals in comparison to rodents from the reference site. Exposed rodents exhibited anxious behavior evaluated in the open field, while no alterations in learning were found. However, they displayed slight changes in the memory test in comparison to reference group. The neurochemical evaluation showed higher levels of dopamine and 5-hydroxyindolacetic acid in midbrain, while lower levels of metabolites dihydroxyphenyl acetic acid and homovanillic acid in striatum of exposed rodents. In addition, mRNA expression levels of dopaminergic D2 receptors in nucleus accumbens were lower in animals from the mining zone than in animals from the reference zone. This is the first study that shows that chronic environmental exposure to metals results in behavioral and neurochemical alterations in the wild rodent L. irroratus, a fact that may comprise the survival of the individuals resulting in long-term effects at the population level. Finally, we suggest the use of L. irroratus as a sentinel species for environmental biomonitoring of mining sites.
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Affiliation(s)
- Isela Hernández-Plata
- Laboratorio de Investigaciones Ambientales, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos, México
| | - Verónica M Rodríguez
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Querétaro, 76230, México
| | - Efraín Tovar-Sánchez
- Centro de Investigación para la Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos, México
| | - Leticia Carrizalez
- Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona #550, Col. Lomas 2a Sección, 78210, San Luis Potosí, San Luis Potosí, México
| | - Patricia Villalobos
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Querétaro, 76230, México
| | - María Soledad Mendoza-Trejo
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Querétaro, Querétaro, 76230, México
| | - Patricia Mussali-Galante
- Laboratorio de Investigaciones Ambientales, Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos, México.
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Li ZC, Wang F, Li SJ, Zhao L, Li JY, Deng Y, Zhu XJ, Zhang YW, Peng DJ, Jiang YM. Sodium Para-aminosalicylic Acid Reverses Changes of Glutamate Turnover in Manganese-Exposed Rats. Biol Trace Elem Res 2020; 197:544-554. [PMID: 31838737 DOI: 10.1007/s12011-019-02001-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/03/2019] [Indexed: 01/26/2023]
Abstract
Sodium para-aminosalicylic acid (PAS-Na) has been used to treat patients with manganism, a neurological disease caused by manganese (Mn) toxicity, although the exact molecular mechanisms are yet unclear. The present study aims to investigate the effect of PAS-Na on glutamate (Glu) turnover of Mn-exposed rats. The results showed that Mn concentrations in the hippocampus, thalamus, striatum, and globus pallidus were increased in Mn-exposed rats. Moreover, the results also demonstrated that subacute Mn exposure (15 mg/kg for 4 weeks) interrupted the homeostasis of Glu by increasing Glu levels but decreasing glutamine (Gln) levels in the hippocampus, thalamus, striatum, and globus pallidus in male Sprague-Dawley rats. These effects lasted even after Mn exposure had been ceased for a period of 6 weeks. Meanwhile the main Glu turnover enzymes [Gln synthetase (GS) and phosphate-activated glutaminase (PAG)] and transporters [Glu/aspartate transporter (GLAST) and Glu transporter-1 (GLT-1)] were also affected by Mn treatment. Additionally, PAS-Na treatment recovered the aforementioned changes induced by Mn. Taken together, these results indicate that Glu turnover might be involved in Mn-induced neurotoxicity. PAS-Na treatment could promote Mn excretions and recover the changes in Glu turnover induced by Mn, and a prolonged PAS-Na treatment may be more effective.
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Affiliation(s)
- Zhao-Cong Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Fang Wang
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Institute of Toxicology, Guangxi Center for Disease Prevention and Control, Nanning, 530028, China
| | - Shao-Jun Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Lin Zhao
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Jun-Yan Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Yue Deng
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Xiao-Juan Zhu
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Yu-Wen Zhang
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Dong-Jie Peng
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China
| | - Yue-Ming Jiang
- Department of Toxicology, School of Public Health, Guangxi Medical University, No. 22, Shuang-yong Rd, Nanning, 530021, Guangxi, China.
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
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Hernández RB, Carrascal M, Abian J, Michalke B, Farina M, Gonzalez YR, Iyirhiaro GO, Moteshareie H, Burnside D, Golshani A, Suñol C. Manganese-induced neurotoxicity in cerebellar granule neurons due to perturbation of cell network pathways with potential implications for neurodegenerative disorders. Metallomics 2020; 12:1656-1678. [PMID: 33206086 DOI: 10.1039/d0mt00085j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Manganese (Mn) is essential for living organisms, playing an important role in nervous system function. Nevertheless, chronic and/or acute exposure to this metal, especially during early life stages, can lead to neurotoxicity and dementia by unclear mechanisms. Thus, based on previous works of our group with yeast and zebrafish, we hypothesized that the mechanisms mediating manganese-induced neurotoxicity can be associated with the alteration of protein metabolism. These mechanisms may also depend on the chemical speciation of manganese. Therefore, the current study aimed at investigating the mechanisms mediating the toxic effects of manganese in primary cultures of cerebellar granule neurons (CGNs). By exposing cultured CGNs to different chemical species of manganese ([[2-[(dithiocarboxy)amino]ethyl]carbamodithioato]](2-)-kS,kS']manganese, named maneb (MB), and [[1,2-ethanediylbis[carbamodithioato]](2-)]manganese mixture with [[1,2-ethanediylbis[carbamodithioato]](2-)]zinc, named mancozeb (MZ), and manganese chloride (MnCl2)), and using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, we observed that both MB and MZ induced similar cytotoxicity (LC50∼ 7-9 μM), which was higher than that of MnCl2 (LC50∼ 27 μM). Subsequently, we applied systems biology approaches, including metallomics, proteomics, gene expression and bioinformatics, and revealed that independent of chemical speciation, for non-cytotoxic concentrations (0.3-3 μM), Mn-induced neurotoxicity in CGNs is associated with metal dyshomeostasis and impaired protein metabolism. In this way, we verified that MB induced more post-translational alterations than MnCl2, which can be a plausible explanation for cytotoxic differences between both chemical species. The metabolism of proteins is one of the most energy consuming cellular processes and its impairment appears to be a key event of some cellular stress processes reported separately in other studies such as cell cycle arrest, energy impairment, cell signaling, excitotoxicity, immune response, potential protein accumulation and apoptosis. Interestingly, we verified that Mn-induced neurotoxicity shares pathways associated with the development of Alzheimer's disease, Amyotrophic Lateral Sclerosis, Huntington's disease, and Parkinson's disease. This has been observed in baker's yeast and zebrafish suggesting that the mode of action of Mn may be evolutionarily conserved.
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Affiliation(s)
- Raúl Bonne Hernández
- Laboratory of Bioinorganic and Environmental Toxicology - LABITA, Department of Exact and Earth Sciences, Federal University of São Paulo, Rua Prof. Artur Riedel, 275, CEP 09972-270, Diadema, SP, Brazil.
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128
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Is there any association between manganese level and schizophrenia? - a descriptive review. CURRENT PROBLEMS OF PSYCHIATRY 2020. [DOI: 10.2478/cpp-2020-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction: Manganese has a role in the membrane transport systems, synthesis of protein, vitamin C, and vitamins B, catalysis of hematopoiesis, regulation of the endocrine, immune system, blood sugar, reproduction, digestion, and blood coagulation. Furthermore, the level of manganese concentrations in human body appears to affect the occurrence of schizophrenia. The aim of this study was to search for relationships between the manganese level and the onset of schizophrenia.
Material and methods: A descriptive review was performed based on a literature search on Medline and Google scholar from 2003 to 2020, using keywords: schizophrenia, manganese, Mn. The included studies were meta-analyses, case-control studies, and cohort studies that examined differences in manganese concentrations in patients with schizophrenia and healthy controls.
Result: Eight studies were selected for the review, with one reporting elevated levels of manganese, two showing no significant differences, and the rest including two meta-analyses stating lower manganese concentrations in patients with schizophrenia in comparison with controls.
Conclusion: In most of the researched studies, manganese concentrations in patients with schizophrenia were lower than in control groups, but not all of them reached the same conclusions. The relationship between manganese levels and schizophrenia must be further investigated.
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Iron-responsive-like elements and neurodegenerative ferroptosis. ACTA ACUST UNITED AC 2020; 27:395-413. [PMID: 32817306 PMCID: PMC7433652 DOI: 10.1101/lm.052282.120] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 12/26/2022]
Abstract
A set of common-acting iron-responsive 5′untranslated region (5′UTR) motifs can fold into RNA stem loops that appear significant to the biology of cognitive declines of Parkinson's disease dementia (PDD), Lewy body dementia (LDD), and Alzheimer's disease (AD). Neurodegenerative diseases exhibit perturbations of iron homeostasis in defined brain subregions over characteristic time intervals of progression. While misfolding of Aβ from the amyloid-precursor-protein (APP), alpha-synuclein, prion protein (PrP) each cause neuropathic protein inclusions in the brain subregions, iron-responsive-like element (IRE-like) RNA stem–loops reside in their transcripts. APP and αsyn have a role in iron transport while gene duplications elevate the expression of their products to cause rare familial cases of AD and PDD. Of note, IRE-like sequences are responsive to excesses of brain iron in a potential feedback loop to accelerate neuronal ferroptosis and cognitive declines as well as amyloidosis. This pathogenic feedback is consistent with the translational control of the iron storage protein ferritin. We discuss how the IRE-like RNA motifs in the 5′UTRs of APP, alpha-synuclein and PrP mRNAs represent uniquely folded drug targets for therapies to prevent perturbed iron homeostasis that accelerates AD, PD, PD dementia (PDD) and Lewy body dementia, thus preventing cognitive deficits. Inhibition of alpha-synuclein translation is an option to block manganese toxicity associated with early childhood cognitive problems and manganism while Pb toxicity is epigenetically associated with attention deficit and later-stage AD. Pathologies of heavy metal toxicity centered on an embargo of iron export may be treated with activators of APP and ferritin and inhibitors of alpha-synuclein translation.
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130
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Mechanisms of Co, Ni, and Mn toxicity: From exposure and homeostasis to their interactions with and impact on lipids and biomembranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183250. [DOI: 10.1016/j.bbamem.2020.183250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/12/2020] [Accepted: 02/24/2020] [Indexed: 01/21/2023]
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Foulquier F, Legrand D. Biometals and glycosylation in humans: Congenital disorders of glycosylation shed lights into the crucial role of Golgi manganese homeostasis. Biochim Biophys Acta Gen Subj 2020; 1864:129674. [PMID: 32599014 DOI: 10.1016/j.bbagen.2020.129674] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/18/2020] [Accepted: 06/24/2020] [Indexed: 12/24/2022]
Abstract
About half of the eukaryotic proteins bind biometals that participate in their structure and functions in virtually all physiological processes, including glycosylation. After reviewing the biological roles and transport mechanisms of calcium, magnesium, manganese, zinc and cobalt acting as cofactors of the metalloproteins involved in sugar metabolism and/or glycosylation, the paper will outline the pathologies resulting from a dysregulation of these metals homeostasis and more particularly Congenital Disorders of Glycosylation (CDGs) caused by ion transporter defects. Highlighting of CDGs due to defects in SLC39A8 (ZIP8) and TMEM165, two proteins transporting manganese from the extracellular space to cytosol and from cytosol to the Golgi lumen, respectively, has emphasized the importance of manganese homeostasis for glycosylation. Based on our current knowledge of TMEM165 structure and functions, this review will draw a picture of known and putative mechanisms regulating manganese homeostasis in the secretory pathway.
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Affiliation(s)
- François Foulquier
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, Lille F-59000, France
| | - Dominique Legrand
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, Lille F-59000, France.
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Porte Alcon S, Gorojod RM, Kotler ML. Kinetic and protective role of autophagy in manganese-exposed BV-2 cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118787. [PMID: 32592735 DOI: 10.1016/j.bbamcr.2020.118787] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 06/01/2020] [Accepted: 06/22/2020] [Indexed: 12/14/2022]
Abstract
Manganese (Mn) plays an important role in many physiological processes. Nevertheless, Mn accumulation in the brain can cause a parkinsonian-like syndrome known as manganism. Unfortunately, the therapeutic options for this disease are scarce and of limited efficacy. For this reason, a great effort is being made to understand the cellular and molecular mechanisms involved in Mn toxicity in neuronal and glial cells. Even though evidence indicates that Mn activates autophagy in microglia, the consequences of this activation in cell death remain unknown. In this study, we demonstrated a key role of reactive oxygen species in Mn-induced damage in microglial cells. These species generated by Mn2+ induce lysosomal alterations, LMP, cathepsins release and cell death. Besides, we described for the first time the kinetic of Mn2+-induced autophagy in BV-2 microglial cells and its relevance to cell fate. We found that Mn promotes a time-dependent increase in LC3-II and p62 expression levels, suggesting autophagy activation. Possibly, cells trigger autophagy to neutralize the risks associated with lysosomal rupture. In addition, pre-treatment with both Rapamycin and Melatonin enhanced autophagy and retarded Mn2+ cytotoxicity. In summary, our results demonstrated that, despite the damage inflicted on a subset of lysosomes, the autophagic pathway plays a protective role in Mn-induced microglial cell death. We propose that 2 h Mn2+ exposure will not induce disturbances in the autophagic flux. However, as time passes, the accumulated damage inside the cell could trigger a dysfunction of this mechanism. These findings may represent a valuable contribution to future research concerning manganism therapies.
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Affiliation(s)
- Soledad Porte Alcon
- CONICET- Universidad de Buenos Aires. Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Disfunción Celular en Enfermedades Neurodegenerativas y Nanomedicina. Ciudad Autónoma de Buenos Aires, Argentina.
| | - Roxana Mayra Gorojod
- CONICET- Universidad de Buenos Aires. Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Disfunción Celular en Enfermedades Neurodegenerativas y Nanomedicina. Ciudad Autónoma de Buenos Aires, Argentina.
| | - Mónica Lidia Kotler
- CONICET- Universidad de Buenos Aires. Instituto de Química Biológica Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Laboratorio de Disfunción Celular en Enfermedades Neurodegenerativas y Nanomedicina. Ciudad Autónoma de Buenos Aires, Argentina.
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134
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Sanotsky Y, Selikhova M, Fedoryshyn L, Kuzyk P, Matviyenko Y, Semeryak O, Dziewulska D, Holton JL, Lees AJ. Neuropathological Findings in Ephedrone Encephalopathy. Mov Disord 2020; 35:1858-1863. [PMID: 32542919 DOI: 10.1002/mds.28125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/24/2020] [Accepted: 05/12/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND A number of cases of severe parkinsonism-dystonia have been recognized and reported following the illicit use of ephedrone prepared from pseudoephedrine and potassium permanganate. The pathology associated with ephedrone neurotoxicity has not been described yet in the scientific literature. OBJECTIVES To report the first neuropathological study of ephedrone toxicity. METHODS The brain of a 33-year-old Ukrainian female ex-ephedrone addict with a long history of l-dopa-unresponsive parkinsonism with dysarthria, dystonia, profound postural instability, cock-gait, and frequent falls, and on antiretroviral treatment, was examined using routine stains and immunohistochemistry. RESULTS Neuropathological findings included diffuse pallidal astrogliosis without neuronal depletion. There was also widespread vascular pathology with small vessels occluded by foreign material, associated with giant cell response without any evidence of consequent focal infarction and a cerebellar abscess. CONCLUSIONS Clinical findings of l-dopa-unresponsive parkinsonism with dystonia, caused by illicit use of ephedrone, are fully consistent with neuropathological changes in the pallidum, lack of change in the SN, and preserved tyrosine hydroxylase activity. The findings in the basal ganglia are compatible with manganese toxicity. The vascular pathology is likely a joint effect of infection and the ephedrone toxicity on the vessels. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Yanosh Sanotsky
- Department of Neurology, Lviv Regional Clinical Hospital, Lviv, Ukraine
| | - Marianna Selikhova
- Queen Square Brain Bank, UCL Queen Square Institute of Neurology, London, United Kingdom
| | | | - Petro Kuzyk
- Department of Pathological Anatomy #2, Bogomolets National Medical University, Kyiv, Ukraine
| | - Yuriy Matviyenko
- Department of Neurology, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Orest Semeryak
- Department of Neurology, Lviv Regional Clinical Hospital, Lviv, Ukraine
| | - Dorota Dziewulska
- Department of Neurology, Medical University of Warsaw, Warsaw, Poland
| | - Janice L Holton
- Queen Square Brain Bank, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Andrew J Lees
- Queen Square Brain Bank, UCL Queen Square Institute of Neurology, London, United Kingdom
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135
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Ibrahim F, Nomier MA, Sabik LME, Shaheen MA. Manganese-induced neurotoxicity and the potential protective effects of lipoic acid and Spirulina platensis. Toxicol Mech Methods 2020; 30:497-507. [PMID: 32441205 DOI: 10.1080/15376516.2020.1771803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Manganese (Mn) is essential for many physiological processes; however, its excessive accumulation in the brain causes severe dysfunctions in the nervous system. Oxidative stress is thought to be involved in Mn-induced neurotoxicity. The aim of this study was to evaluate the neurotoxic effects of Mn and the potential protective effects of alpha lipoic acid (ALA) and Spirulina platensis (SP), each alone and in combination. Sixty-four male albino rats were divided into eight equal groups: group 1 was used as control, group 2 received saline, which used as a vehicle, group 3 received ALA (50 mg/kg/day), group 4 received SP (300 mg/kg/day), group 5 received Mn (74 mg/kg, 5 days/week), group 6 received Mn + ALA, group 7 received Mn + SP, group 8 received Mn + ALA + SP. Groups 6, 7 and 8 received the same previously mentioned doses. All treatments were orally gavaged for 8 weeks. Mn administration caused neurobehavioral changes, increases of brain and serum Mn and malondialdehyde (MDA), with decreased glutathione peroxidase (GPx), dopamine and acetylcholine levels. The co-treatment with ALA and SP revealed their ability to protect against oxidative damage, neurobehavioral and biochemical changes induced by Mn.
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Affiliation(s)
- Fatma Ibrahim
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mahmoud A Nomier
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Laila M E Sabik
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed A Shaheen
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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136
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Soares ATG, da Silva AC, Tinkov AA, Khan H, Santamaría A, Skalnaya MG, Skalny AV, Tsatsakis A, Bowman AB, Aschner M, Ávila DS. The impact of manganese on neurotransmitter systems. J Trace Elem Med Biol 2020; 61:126554. [PMID: 32480053 PMCID: PMC7677177 DOI: 10.1016/j.jtemb.2020.126554] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 04/09/2020] [Accepted: 05/15/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Manganese (Mn) is a metal ubiquitously present in nature and essential for many living organisms. As a trace element, it is required in small amounts for the proper functioning of several important enzymes, and reports of Mn deficiency are indeed rare. METHODS This mini-review will cover aspects of Mn toxicokinetics and its impact on brain neurotransmission, as well as its Janus-faced effects on humans and other animal's health. RESULTS The estimated safe upper limit of intracellular Mn for physiological function is in anarrow range of 20-53 μM.Therefore, intake of higher levels of Mn and the outcomes, especially to the nervous system, have been well documented. CONCLUSION The metal affects mostly the brain by accumulating in specific areas, altering cognitive functions and locomotion, thus severely impacting the health of the exposed organisms.
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Affiliation(s)
- Ana Thalita Gonçalves Soares
- Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans, Graduation Program in Biochemistry, Federal University of Pampa Campus Uruguaiana, RS, Brazil
| | - Aline Castro da Silva
- Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans, Graduation Program in Biochemistry, Federal University of Pampa Campus Uruguaiana, RS, Brazil
| | - Alexey A. Tinkov
- Yaroslavl State University, Yaroslavl, Russia
- IM Sechenov First Moscow State Medical University, Moscow, Russia
- Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia
| | - Haroon Khan
- Department of pharmacy, Abdul Wali khan University Mardan 23200, Pakistan
| | - Abel Santamaría
- Laboratorio de Aminoácidos Excitadores, Instituto Nacional de Neurología y Neurocirugía, SSA. Mexico City, Mexico
| | | | - Anatoly V. Skalny
- IM Sechenov First Moscow State Medical University, Moscow, Russia
- Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 460000, Orenburg, Russia
| | - Aristidis Tsatsakis
- Laboratory of Toxicology, Medical School, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - Aaron B. Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN 47906, USA
| | - Michael Aschner
- IM Sechenov First Moscow State Medical University, Moscow, Russia
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Daiana Silva Ávila
- Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans, Graduation Program in Biochemistry, Federal University of Pampa Campus Uruguaiana, RS, Brazil
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137
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Manganese Neurotoxicity as a Complication of Chronic Total Parenteral Nutrition. Case Rep Neurol Med 2020; 2020:9484028. [PMID: 32373376 PMCID: PMC7196137 DOI: 10.1155/2020/9484028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/18/2020] [Indexed: 12/05/2022] Open
Abstract
Manganese accumulation in the central nervous system creates clinical symptoms of cognitive dysfunction, behavioral changes, and movement disorders resembling Parkinson's disease. Radiographic features of this rare clinical entity include symmetric T1 hyperintensities in the bilateral globus pallidi, with corresponding hypointensities on T2-weighted images. Total parenteral nutrition (TPN) is an increasingly used potentially lifesaving therapy for patients who cannot tolerate enteral nutrition. However, when used over a period of several weeks to months, its associated risks and complications carry significant morbidity and mortality. One of the more rare complications of TPN use is manganese toxicity. We provided care for a 38-year-old female on chronic TPN who presented to the hospital with Parkinsonian features, confusion, falls, and lethargy. MRI brain showed T1 hyperintensities in the bilateral globus pallidi, which were attributed to manganese toxicity from chronic TPN use. Supporting evidence for this rare entity included decreased signal intensity in the bilateral globus pallidi on T2-weighted images and T1 hyperintensities in the substantia nigra. With antifungal treatment and permanent cessation of TPN, her mentation and neurological symptoms began to improve within a week. Repeat MRI brain performed one month after discontinuation of TPN revealed improvement of the T1 hyperintensities in the bilateral globus pallidi. Our objective in presenting this case is to highlight manganese neurotoxicity as a rare complication of TPN in a patient without known hepatic dysfunction and to emphasize the importance of routinely monitoring patients for the possible adverse effects of chronic TPN. Our case is among the handful of published cases in which a patient without known liver dysfunction, which is the primary organ responsible for manganese elimination from the body, developed manganese neurotoxicity.
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Kissani N, Naji Y, Mebrouk Y, Chraa M, Ghanima A. Parkinsonism and chronic manganese exposure: Pilot study with clinical, environmental and experimental evidence. Clin Park Relat Disord 2020; 3:100057. [PMID: 34316640 PMCID: PMC8298767 DOI: 10.1016/j.prdoa.2020.100057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 04/21/2020] [Accepted: 05/01/2020] [Indexed: 11/17/2022] Open
Abstract
Parkinsonism related to chronic Manganese exposure is notably due to focal lesions of the basal ganglia. Our study focused on epidemiological, clinical, toxicological and experimental aspects of Manganese-induced Parkinsonism in south of Morocco. It is a prospective study concerning the workers and the residents bordering on the 2 mines in the south of Morocco. The results of the study concerned 120 cases divided into 4 groups of patients: G1: 30 cases exposed to different incriminated toxic products, which present Parkinsonian signs, G2: 30 cases healthy and exposed, G3: 30 cases affected with Idiopathic Parkinson's disease, and G4: 30 cases healthy and unexposed (controls). The results from the first mine show that 5.7% of the sample developed Manganese-Induced Parkinsonism and this percentage is slightly higher (4.5%) than the second mine site. Chemical and biological analysis revealed high levels of Manganese. The majority of patients did not improve the clinical signs under L-dopa treatment. The authors underline the gravity of Manganese-induced Parkinsonism and propose a listing of the various exposures as well as a cartography of the regions of risk in Morocco. The objective of this study was to update the data about Manganese-Induced Parkinsonism in the South of Morocco. Multidisciplinary study putting together clinicians, biologists, biochemists, and pathologists to map accurately areas of exposure to heavy metals. Specific considerations should be taken concerning miners by improving work conditions and obliging the use of protective equipment. General approach on primary prevention for the population living near the mines in the way to decrease the number of cases.
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Affiliation(s)
- Najib Kissani
- Clinical and Experimental Neuroscience Research Laboratory, Faculty of Medicine, Cadi Ayyad University, Marrakech, Morocco
- Neurology department, University Teaching Hospital Mohammed VI, Marrakesh, Morocco
- Corresponding author at: Neurology Department, University Hospital Mohamed VI, Marrakech, Morocco.
| | - Yahya Naji
- Clinical and Experimental Neuroscience Research Laboratory, Faculty of Medicine, Cadi Ayyad University, Marrakech, Morocco
| | - Yassine Mebrouk
- Neurology Department, University Hospital Mohammed VI, Oujda, Morocco
| | - Mohamed Chraa
- Clinical and Experimental Neuroscience Research Laboratory, Faculty of Medicine, Cadi Ayyad University, Marrakech, Morocco
| | - Abderrazzak Ghanima
- Laboratory of Bio-Organic and Macromolecular Chemistry, Department of Biology, Faculty of Sciences and Techniques, Marrakech, Morocco
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139
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Ajsuvakova OP, Tinkov AA, Willkommen D, Skalnaya AA, Danilov AB, Pilipovich AA, Aschner M, Skalny AV, Michalke B, Skalnaya MG. Assessment of copper, iron, zinc and manganese status and speciation in patients with Parkinson's disease: A pilot study. J Trace Elem Med Biol 2020; 59:126423. [PMID: 31733982 DOI: 10.1016/j.jtemb.2019.126423] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/25/2019] [Accepted: 10/24/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND The objective of this pilot study was to assess iron (Fe), copper (Cu), zinc (Zn), and manganese (Mn) status (hair, serum, and urine) and speciation (serum) in Parkinson's disease (PD) patients. METHODS A pilot study involving a total of 27 subjects (13 PD patients, 14 controls) was performed. Serum, urine, and hair metal content was assessed using ICP-MS. Speciation analysis of Cu, Zn, Fe, and Mn was performed using a hybrid HPLC-ICP-MS system. RESULTS Group comparisons did not reveal any significant group difference in serum Cu, Zn, Fe, and Mn total metal level between PD patients and controls. Speciation analysis revealed a significant decrease in Cu/ceruloplasmin copper in association with elevation of low-molecular weight species (amino acids)-bound copper. It is proposed that in PD, binding of Cu(II) ions to ceruloplasmin is reduced and free copper ions coordinate with low molecular weight ligands. The level of Mn-albumin complexes in PD patients was more than 4-fold higher as compared to the respective value in the control group. The observed difference may be considered as a marker of redistribution between high and low molecular weight ligands. CONCLUSIONS Metal speciation is significantly affected in serum of PD-patients. These findings are indicative of the potential role of metal metabolism and PD pathogenesis, although the exact mechanisms of such associations require further detailed studies.
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Affiliation(s)
- Olga P Ajsuvakova
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia; Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay St., 10/2, Moscow 117198, Russia; Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 9 Yanvarya St., 29, 460000 Orenburg, Russia.
| | - Alexey A Tinkov
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia; P.G. Demidov Yaroslavl State University, Sovetskaya st., 14, 150003 Yaroslavl, Russia; Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 9 Yanvarya St., 29, 460000 Orenburg, Russia
| | - Desiree Willkommen
- RECIPE Chemicals and Instruments GmbH, Sternstraße 5A, 85386 Eching, Munich, Germany
| | - Anastasia A Skalnaya
- M.V. Lomonosov Moscow State University, Leninskie Gory, 1, 119991 Moscow, Russia
| | - Alexey B Danilov
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia
| | - Anna A Pilipovich
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Anatoly V Skalny
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia; Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay St., 10/2, Moscow 117198, Russia; Federal Scientific Center of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 9 Yanvarya St., 29, 460000 Orenburg, Russia
| | - Bernhard Michalke
- Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany
| | - Margarita G Skalnaya
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St., 8-2, 119991 Moscow, Russia; Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklay St., 10/2, Moscow 117198, Russia
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140
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Miah MR, Ijomone OM, Okoh COA, Ijomone OK, Akingbade GT, Ke T, Krum B, da Cunha Martins A, Akinyemi A, Aranoff N, Antunes Soares FA, Bowman AB, Aschner M. The effects of manganese overexposure on brain health. Neurochem Int 2020; 135:104688. [PMID: 31972215 PMCID: PMC7926190 DOI: 10.1016/j.neuint.2020.104688] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 01/12/2020] [Accepted: 01/15/2020] [Indexed: 12/11/2022]
Abstract
Manganese (Mn) is the twelfth most abundant element on the earth and an essential metal to human health. Mn is present at low concentrations in a variety of dietary sources, which provides adequate Mn content to sustain support various physiological processes in the human body. However, with the rise of Mn utility in a variety of industries, there is an increased risk of overexposure to this transition metal, which can have neurotoxic consequences. This risk includes occupational exposure of Mn to workers as well as overall increased Mn pollution affecting the general public. Here, we review exposure due to air pollution and inhalation in industrial settings; we also delve into the toxic effects of manganese on the brain such as oxidative stress, inflammatory response and transporter dysregulation. Additionally, we summarize current understandings underlying the mechanisms of Mn toxicity.
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Affiliation(s)
- Mahfuzur R Miah
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA.
| | - Omamuyovwi M Ijomone
- The Neuro-Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology Akure, Ondo, Nigeria
| | - Comfort O A Okoh
- The Neuro-Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology Akure, Ondo, Nigeria
| | - Olayemi K Ijomone
- The Neuro-Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology Akure, Ondo, Nigeria; Department of Anatomy, University of Medical Sciences, Ondo, Nigeria
| | - Grace T Akingbade
- The Neuro-Lab, Department of Human Anatomy, School of Health and Health Technology, Federal University of Technology Akure, Ondo, Nigeria
| | - Tao Ke
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Bárbara Krum
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | | | - Ayodele Akinyemi
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Nicole Aranoff
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA; Stern College for Women, Yeshiva University, New York, NY, USA
| | - Felix Alexandre Antunes Soares
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Aaron B Bowman
- School of Health Sciences, Purdue University, West Lafayette, IN, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA; Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA; Sechenov First Moscow State Medical University, Moscow, Russia.
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141
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Wang H, Zhang S, Yang F, Xin R, Wang S, Cui D, Sun Y. The gut microbiota confers protection in the CNS against neurodegeneration induced by manganism. Biomed Pharmacother 2020; 127:110150. [PMID: 32330797 DOI: 10.1016/j.biopha.2020.110150] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/30/2020] [Accepted: 04/04/2020] [Indexed: 12/15/2022] Open
Abstract
Among all types of pollution, heavy metals are considered the greatest threat to human health, and heavy metals are associated with an increased risk of cardiovascular disease, coronary heart disease and neurodegenerative disorders. Manganese (Mn) exposure is well reported to exert neurotoxicity and various neurodegenerative disorders, but the mechanisms are not clear. The gut microbiota plays a crucial role in the bidirectional gut-brain axis that integrates the gut and central nervous system (CNS) activities. The changes in chemical signaling, metabolism and gut microbiota associated with Mn exposure have provided deeper insight into the neurotoxic mechanism of Mn. We observed that Mn exposure increases host manganic bioaccumulation, and β-amyloid (Aβ), receptor-interacting protein kinase 3 (RIP3) and caspase-3 production in the brain, and causes hippocampal degeneration and necrosis. Mn exposure led to decreased gut bacterial richness, especially for Prevotellaceae, Fusobacteriaceae and Lactobacillaceae. In addition, Mn exposure altered the metabolism of tryptamine, taurodeoxycholic acid, β-hydroxypyruvic acid and urocanic acid. Meanwhile, we found correlations between the abundance of certain bacterial species and the level of tryptamine, taurodeoxycholic acid, β-hydroxypyruvic acid and urocanic acid. Fecal microbiome transplantation from normal rats could alleviate the neurotoxicity of Mn exposure by shaping the gut microbiota. Our findings highlight the role of gut dysbiosis-promoted neurotoxicity in Mn exposure and suggest a novel therapeutic strategy of remodeling the gut microbiota.
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Affiliation(s)
- Hui Wang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
| | - Shidong Zhang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Feng Yang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Ruihua Xin
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Shengyi Wang
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Dongan Cui
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Yan Sun
- Engineering and Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.
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142
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Azimzadeh M, Jelodar G. Trace elements homeostasis in brain exposed to 900 MHz RFW emitted from a BTS-antenna model and the protective role of vitamin E. J Anim Physiol Anim Nutr (Berl) 2020; 104:1568-1574. [PMID: 32279387 DOI: 10.1111/jpn.13360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 03/14/2020] [Indexed: 12/26/2022]
Abstract
Advances in telecommunication and their broad usage in the community have become a great concern from the health aspect. The object of the present study was to examine the effects of exposure to 900 MHz RFW on brain Iron (Fe), Copper (Cu), Zinc (Zn) and Manganese (Mn) concentration, and the protective role of pre-treatment of vitamin E on mentioned elements homoeostasis. Twenty adult male Sprague-Dawley rats (200 ± 20 g) randomly were divided into four groups. Control group (without any exposure, received distilled water), treatment control group (orally received 250 mg/kg BW/d vitamin E), treatment group (received 250 mg/kg BW/d vitamin E and exposed to 900 MHz RFW) and sham-exposed group (exposed to 900 MHz RFW). Animals (with freely moving in the cage) were exposed to RFW for 30 consecutive days (4 hr/day). The levels of the above mentioned elements in the brain tissue were determined on the last day using atomic absorption spectrophotometry. Exposure to 900 MHz RFW induced a significant increase in the Fe, Cu, Mn levels and Cu/Zn ratio accompanied by a significant decrease in Zn level in the sham-exposed group compare to control group. Vitamin E pre-treatment improved the level of Fe, Cu, Mn and Cu/Zn ratio, except in the Zn concentration. Exposure to 900 MHz RFW caused disrupted trace elements homoeostasis in the brain tissue and administration of vitamin E as an antioxidant and neuroprotective agent improved the situation.
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Affiliation(s)
- Mansour Azimzadeh
- Department of Basic Science, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Gholamali Jelodar
- Department of Basic Science, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
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Biswas S, Banna HU, Jahan M, Anjum A, Siddique AE, Roy A, Nikkon F, Salam KA, Haque A, Himeno S, Hossain K, Saud ZA. In vivo evaluation of arsenic-associated behavioral and biochemical alterations in F 0 and F 1 mice. CHEMOSPHERE 2020; 245:125619. [PMID: 31846792 DOI: 10.1016/j.chemosphere.2019.125619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 11/18/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Groundwater contaminated with arsenic (As) is the biggest threat to public health in Bangladesh. The children of As-exposure parents are also exposing to As through drinking water. The effects of As on the children's health of As-exposure parents are poorly understood. An animal study was taken to evaluate the effects of As on behavioral and biochemical changes in F1 mice. Swiss albino mice were separated into three groups: a) control, b) As-treated F0 and c) As-treated F1. Elevated plus maze and Morris water maze tests were used for evaluating anxiety, spatial memory and learning, respectively. We found that the effect of As on anxiety like behavior, spatial memory and learning impairment in As-treated F1 mice was significantly higher than that of As-treated F0 mice and control group. Additionally, we also evaluated the effects of As on biochemical parameters by measuring ALT, AST, ALP, BChE, SOD activities and the level of creatinine in As-induced mice, where we found that all of the blood parameters were significantly changed in F1 generation. A significant portion of As accumulated in the brain, liver and kidney of F1 mice than F0 mice. Histological analysis revealed a significant change in tissue damage related to hepatic and renal dysfunctions that might be associated with As-induced biochemical alterations. In conclusion, arsenic plays an important role for the development of As-associated neurological disorders, hepatic toxicities, and renal dysfunctions in both F0 and F1 generations. Notably F1 mice were much more vulnerable to As-exposure than F0 mice.
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Affiliation(s)
- Sheta Biswas
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Hasan Ul Banna
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Momotaj Jahan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Adiba Anjum
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abu Eabrahim Siddique
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Apurba Roy
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Farjana Nikkon
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Kazi Abdus Salam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Seiichiro Himeno
- Laboratory of Molecular Nutrition and Toxicology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Khaled Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Zahangir Alam Saud
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh.
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Aydemir TB, Thorn TL, Ruggiero CH, Pompilus M, Febo M, Cousins RJ. Intestine-specific deletion of metal transporter Zip14 (Slc39a14) causes brain manganese overload and locomotor defects of manganism. Am J Physiol Gastrointest Liver Physiol 2020; 318:G673-G681. [PMID: 32003605 PMCID: PMC7191460 DOI: 10.1152/ajpgi.00301.2019] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Impaired manganese (Mn) homeostasis can result in excess Mn accumulation in specific brain regions and neuropathology. Maintaining Mn homeostasis and detoxification is dependent on effective Mn elimination. Specific metal transporters control Mn homeostasis. Human carriers of mutations in the metal transporter ZIP14 and whole body Zip14-knockout (WB-KO) mice display similar phenotypes, including spontaneous systemic and brain Mn overload and motor dysfunction. Initially, it was believed that Mn accumulation due to ZIP14 mutations was caused by impaired hepatobiliary Mn elimination. However, liver-specific Zip14-KO mice did not show systemic Mn accumulation or motor deficits. ZIP14 is highly expressed in the small intestine and is localized to the basolateral surface of enterocytes. Thus, we hypothesized that basolaterally localized ZIP14 in enterocytes provides another route for the elimination of Mn. Using wild-type and intestine-specific Zip14-KO (I-KO) mice, we have shown that ablation of intestinal Zip14 is sufficient to cause systemic and brain Mn accumulation. The lack of intestinal ZIP14-mediated Mn excretion was compensated for by the hepatobiliary system; however, it was not sufficient to maintain Mn homeostasis. When supplemented with extra dietary Mn, I-KO mice displayed some motor dysfunctions and brain Mn accumulation based on both MRI imaging and chemical analysis, thus demonstrating the importance of intestinal ZIP14 as a route of Mn excretion. A defect in intestinal Zip14 expresssion likely could contribute to the Parkinson-like Mn accumulation of manganism.NEW & NOTEWORTHY Mn-induced parkinsonism is recognized as rising in frequency because of both environmental factors and genetic vulnerability; yet currently, there is no cure. We provide evidence in an integrative animal model that basolaterally localized ZIP14 regulates Mn excretion and detoxification and that deletion of intestinal ZIP14 leads to systemic and brain Mn accumulation, providing robust evidence for the indispensable role of intestinal ZIP14 in Mn excretion.
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Affiliation(s)
| | - Trista L. Thorn
- 1Division of Nutritional Sceinces, Cornell University, Ithaca, New York
| | - Courtney H. Ruggiero
- 2Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, Florida
| | - Marjory Pompilus
- 3Department of Psychiatry, McKnight Brain Institute, University of Florida, Gainesville, Florida
| | - Marcelo Febo
- 3Department of Psychiatry, McKnight Brain Institute, University of Florida, Gainesville, Florida
| | - Robert J. Cousins
- 2Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, Florida,4Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, Florida
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145
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Interactions between iron and manganese in neurotoxicity. Arch Toxicol 2020; 94:725-734. [PMID: 32180038 DOI: 10.1007/s00204-020-02652-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/27/2020] [Indexed: 12/31/2022]
Abstract
The essential and naturally occurring transition metal manganese (Mn) is present in the soil, water, air, and various foods. Manganese can accumulate in the brain if the Mn intake or exposure is excessive and this can result in neurotoxic effects. Manganese is important for the proper activation of different metabolic and antioxidant enzymes. There are numerous Mn importers and exporters. However, the exact transport mechanism for Mn is not fully understood. On the other hand, iron (Fe) is another well-known essential metal, which has redox activity in addition to chemical characteristics resembling those of Mn. Existing data show that interactions occur between Fe and Mn due to certain similarities regarding their mechanisms of the absorption and the transport. It has been disclosed that Mn-specific transporters, together with Fe transporters, regulate the Mn distribution in the brain and other peripheral tissues. In PC12 cells, a significant increase of transferrin receptor (TfR) mRNA expression was linked to Mn exposure and accompanied by elevated Fe uptake. In both humans and animals, there is a strong relationship between Fe and Mn metabolism. In the present review, special attention is paid to the interaction between Mn and Fe. In particular, Fe and Mn distribution, as well as the potential molecular mechanisms of Mn-induced neurotoxicity in cases of Fe deficiency, are discussed.
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146
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Adjuvant Therapies in Diabetic Retinopathy as an Early Approach to Delay Its Progression: The Importance of Oxidative Stress and Inflammation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3096470. [PMID: 32256949 PMCID: PMC7086452 DOI: 10.1155/2020/3096470] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/16/2020] [Accepted: 02/08/2020] [Indexed: 02/06/2023]
Abstract
Diabetes mellitus (DM) is a progressive disease induced by a sustained state of chronic hyperglycemia that can lead to several complications targeting highly metabolic cells. Diabetic retinopathy (DR) is a multifactorial microvascular complication of DM, with high prevalence, which can ultimately lead to visual impairment. The genesis of DR involves a complex variety of pathways such as oxidative stress, inflammation, apoptosis, neurodegeneration, angiogenesis, lipid peroxidation, and endoplasmic reticulum (ER) stress, each possessing potential therapeutic biomarkers. A specific treatment has yet to be developed for early stages of DR since no management is given other than glycemic control until the proliferative stage develops, offering a poor visual prognosis to the patient. In this narrative review article, we evaluate different dietary regimens, such as the Mediterranean diet, Dietary Pattern to Stop Hypertension (DASH) and their functional foods, and low-calorie diets (LCDs). Nutraceuticals have also been assessed in DR on account of their antioxidant, anti-inflammatory, and antiangiogenic properties, which may have an important impact on the physiopathology of DR. These nutraceuticals have shown to lower reactive oxygen species (ROS), important inflammatory factors, cytokines, and endothelial damage biomarkers either as monotherapies or combined therapies or concomitantly with established diabetes management or nonconventional adjuvant drugs like topical nonsteroidal anti-inflammatory drugs (NSAIDs).
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147
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Bakulski KM, Seo YA, Hickman RC, Brandt D, Vadari HS, Hu H, KyunPark S. Heavy Metals Exposure and Alzheimer's Disease and Related Dementias. J Alzheimers Dis 2020; 76:1215-1242. [PMID: 32651318 PMCID: PMC7454042 DOI: 10.3233/jad-200282] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease and related dementias lack effective treatment or cures and are major public health challenges. Risk for Alzheimer's disease and related dementias is partially attributable to environmental factors. The heavy metals lead, cadmium, and manganese are widespread and persistent in our environments. Once persons are exposed to these metals, they are adept at entering cells and reaching the brain. Lead and cadmium are associated with numerous health outcomes even at low levels of exposure. Although manganese is an essential metal, deficiency or environmental exposure or high levels of the metal can be toxic. In cell and animal model systems, lead, cadmium, and manganese are well documented neurotoxicants that contribute to canonical Alzheimer's disease pathologies. Adult human epidemiologic studies have consistently shown lead, cadmium, and manganese are associated with impaired cognitive function and cognitive decline. No longitudinal human epidemiology study has assessed lead or manganese exposure on Alzheimer's disease specifically though two studies have reported a link between cadmium and Alzheimer's disease mortality. More longitudinal epidemiologic studies with high-quality time course exposure data and incident cases of Alzheimer's disease and related dementias are warranted to confirm and estimate the proportion of risk attributable to these exposures. Given the widespread and global exposure to lead, cadmium, and manganese, even small increases in the risks of Alzheimer's disease and related dementias would have a major population impact on the burden on disease. This article reviews the experimental and epidemiologic literature of the associations between lead, cadmium, and manganese on Alzheimer's disease and related dementias and makes recommendations of critical areas of future investment.
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Affiliation(s)
- Kelly M. Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Young Ah Seo
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Ruby C. Hickman
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Daniel Brandt
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Harita S. Vadari
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Howard Hu
- School of Public Health, University of Washington, Seattle, WA, USA
| | - Sung KyunPark
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, USA
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
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148
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Neumann C, Baesler J, Steffen G, Nicolai MM, Zubel T, Aschner M, Bürkle A, Mangerich A, Schwerdtle T, Bornhorst J. The role of poly(ADP-ribose) polymerases in manganese exposed Caenorhabditis elegans. J Trace Elem Med Biol 2020; 57:21-27. [PMID: 31546209 PMCID: PMC6878993 DOI: 10.1016/j.jtemb.2019.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND AND AIM When exceeding the homeostatic range, manganese (Mn) might cause neurotoxicity, characteristic of the pathophysiology of several neurological diseases. Although the underlying mechanism of its neurotoxicity remains unclear, Mn-induced oxidative stress contributes to disease etiology. DNA damage caused by oxidative stress may further trigger dysregulation of DNA-damage-induced poly(ADP-ribosyl)ation (PARylation), which is of central importance especially for neuronal homeostasis. Accordingly, this study was designed to assess in the genetically traceable in vivo model Caenorhabditis elegans the role of PARylation as well as the consequences of loss of pme-1 or pme-2 (orthologues of PARP1 and PARP2) in Mn-induced toxicity. METHODS A specific and sensitive isotope-dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to quantify PARylation in worms. Next to monitoring the PAR level, pme-1 and pme-2 gene expression as well as Mn-induced oxidative stress was studied in wildtype worms and the pme deletion mutants. RESULTS AND CONCLUSION While Mn failed to induce PARylation in wildtype worms, toxic doses of Mn led to PAR-induction in pme-1-deficient worms, due to an increased gene expression of pme-2 in the pme-1 deletion mutants. However, this effect could not be observed at sub-toxic Mn doses as well as upon longer incubation times. Regarding Mn-induced oxidative stress, the deletion mutants did not show hypersensitivity. Taken together, this study characterizes worms to model PAR inhibition and addresses the consequences for Mn-induced oxidative stress in genetically manipulated worms.
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Affiliation(s)
- Catherine Neumann
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Jessica Baesler
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; TraceAge - DFG Research Unit FOR 2558, Berlin-Potsdam, Jena, Germany
| | - Gereon Steffen
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany
| | - Merle Marie Nicolai
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany
| | - Tabea Zubel
- Department of Biology, University of Konstanz, Universitaetsstraße 10, 78464 Konstanz, Germany
| | - Michael Aschner
- Department of Molecular Pharmacology, Neuroscience, and Pediatrics, Albert Einstein College of Medicine, 1300 Morris Park Avenue, 10461 Bronx, NY, USA
| | - Alexander Bürkle
- Department of Biology, University of Konstanz, Universitaetsstraße 10, 78464 Konstanz, Germany
| | - Aswin Mangerich
- Department of Biology, University of Konstanz, Universitaetsstraße 10, 78464 Konstanz, Germany
| | - Tanja Schwerdtle
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; TraceAge - DFG Research Unit FOR 2558, Berlin-Potsdam, Jena, Germany
| | - Julia Bornhorst
- Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; TraceAge - DFG Research Unit FOR 2558, Berlin-Potsdam, Jena, Germany; Food Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany.
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149
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Ma Z, Wang C, Liu C, Yan DY, Tan X, Liu K, Jing MJ, Deng Y, Liu W, Xu B. Manganese induces autophagy dysregulation: The role of S-nitrosylation in regulating autophagy related proteins in vivo and in vitro. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:134294. [PMID: 31783459 DOI: 10.1016/j.scitotenv.2019.134294] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Exposure to excess levels of manganese (Mn) may lead to nitrosative stress and neurotoxic effects on the central nervous system (CNS). The dysfunction of autophagy correlates with Mn-induced nitrosative stress; however, the exact mechanism of Mn-mediated autophagy dysfunction is still unclear. Three S-nitrosylated target proteins, namely, JNK, Bcl-2, and IKKβ, were classified as the pivotal signaling pathway mediators that could play a role in the regulation of autophagy. To reveal whether these three proteins were involved in Mn-mediated autophagy dysregulation, we studied the effects of Mn on C57/BL6 mice and human neuroblastoma cells. Exposing the mice or cells, to 300 μmol/kg or 200 μM Mn, inhibited the degradation system of the autophagy-lysosome pathway. Additionally, in Mn-treated mice or cells, S-nitrosylated JNK, Bcl-2, and IKKβ increased while the level of their phosphorylation reduced. The interaction of Beclin1 and Bcl-2 significantly increased in response to 200 μM Mn, whereas the decrease in phosphorylation of AMPK activated the mTOR pathway. We then used 20 μM 1400 W, an iNOS-specific inhibitor, to neutralize the nitrosative stress induced by Mn. Our results show that 1400 W reduced the S-nitrosylated JNK, Bcl-2, and Ikkβ and relieved their downstream signaling molecular functions. Moreover, pretreatment with 20 μM 1400 W alleviated Mn-induced autophagic dysregulation and nerve cell injury. These findings revealed that S-nitrosylated JNK, Bcl-2, and IKKβ are crucial signaling molecules in the Mn-mediated autophagic dysfunction.
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Affiliation(s)
- Zhuo Ma
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Can Wang
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Chang Liu
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Dong-Ying Yan
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Xuan Tan
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Kuan Liu
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Meng-Jiao Jing
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Yu Deng
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Wei Liu
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China
| | - Bin Xu
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, People's Republic of China.
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150
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de França JF, Pickler TB, Jozala AF, Dos Santos CA, Batista BL, Pedron T, Vieira RAL, Grotto D. Determination of 17α-ethinylestradiol and toxic metals in surface waters, and estimation of daily intake. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 192:21. [PMID: 31820109 DOI: 10.1007/s10661-019-7990-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
The presence of substances such as hormones and toxic metal in aquatic ecosystem is interesting to the scientific community due to their adverse effects. We quantified 17α-ethynylestradiol (EE2) and toxic metals in the surface waters from Sorocaba and Pirajibu Rivers, in São Paulo State, and we estimated the daily intake for hormone, based on the amount of water consumed. EE2, Cd, Hg, As, Pb, and Mn were seasonally quantified in six different locations along the rivers. EE2 was evaluated by high-performance liquid chromatography. Toxic metals were determined by inductively coupled plasma mass spectrometer. Considering the entire sample year, EE2 concentrations ranged from 4.5 to 48.2 μg L-1. Comparing Sorocaba and Pirajibu rivers, the sample point in the entrance of the Pirajibu River through the city of Itu, São Paulo State, had higher amounts of EE2. Regarding metals, all results are according to the Brazilian and World Health Organization guidelines for drinking-water quality, except for Mn levels, which were higher than the limits in Autumn season in two locations. The estimated daily intake ranged from 13.45 to 40.9 μg/day/person. In conclusion, concentrations of EE2 in the Sorocaba and Pirajibu Rivers were higher than in other countries. The levels were as high as an intake of one pill for each person every day (considering an oral contraceptive has 0.03 mg of ethinylestradiol). Even though concentrations of toxic elements are in accordance with the Brazilian Regulation and World Health Organization, legislation for hormones and drugs needs to advance.
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Affiliation(s)
- Júnior Farias de França
- Graduate Program in Pharmaceutical Sciences, University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba, SP, 18023-000, Brazil
| | - Thaisa Borim Pickler
- Graduate Program in Pharmaceutical Sciences, University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba, SP, 18023-000, Brazil
| | - Angela Faustino Jozala
- Graduate Program in Technology & Environmental Process, University of Sorocaba, Sorocaba, SP, Brazil
| | - Carolina Alves Dos Santos
- Graduate Program in Pharmaceutical Sciences, University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba, SP, 18023-000, Brazil
| | - Bruno Lemos Batista
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, 09210-580, Brazil
| | - Tatiana Pedron
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, SP, 09210-580, Brazil
| | - Raquel Andrade Leite Vieira
- Graduate Program in Pharmaceutical Sciences, University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba, SP, 18023-000, Brazil
| | - Denise Grotto
- Graduate Program in Pharmaceutical Sciences, University of Sorocaba, Rodovia Raposo Tavares, km 92.5, Sorocaba, SP, 18023-000, Brazil.
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