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Naraki K, Keshavarzi M, Razavi BM, Hosseinzadeh H. The Protective Effects of Taurine, a Non-essential Amino Acid, Against Metals Toxicities: A Review Article. Biol Trace Elem Res 2024:10.1007/s12011-024-04191-8. [PMID: 38735894 DOI: 10.1007/s12011-024-04191-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 04/16/2024] [Indexed: 05/14/2024]
Abstract
Taurine is a non-proteinogenic amino acid derived from cysteine. It is involved in several phenomena such as the regulation of growth and differentiation, osmoregulation, neurohormonal modulation, and lipid metabolism. Taurine is important because of its high levels in several tissues such as the central nervous system (CNS), heart, skeletal muscles, retinal membranes, and platelets. In this report, we present the functional properties of taurine indicating that it has potential effects on various metal toxicities. Therefore, a comprehensive literature review was performed using the Scopus, PubMed, and Web of Science databases. According to the search keywords, 61 articles were included in the study. The results indicate that taurine protects tissues against metal toxicity through enhancement of enzymatic and non-enzymatic antioxidant capacity, modulation of oxidative stress, anti-inflammatory and anti-apoptotic effects, involvement in different molecular pathways, and interference with the activity of various enzymes. Taken together, taurine is a natural supplement that presents antitoxic effects against many types of compounds, especially metals, suggesting public consumption of this amino acid as a prophylactic agent against the incidence of metal toxicity.
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Affiliation(s)
- Karim Naraki
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Keshavarzi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
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Gątarek P, Kałużna-Czaplińska J. Integrated metabolomics and proteomics analysis of plasma lipid metabolism in Parkinson's disease. Expert Rev Proteomics 2024; 21:13-25. [PMID: 38346207 DOI: 10.1080/14789450.2024.2315193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 01/24/2024] [Indexed: 02/16/2024]
Abstract
INTRODUCTION Metabolomics and proteomics are two growing fields of science which may shed light on the molecular mechanisms that contribute to neurodegenerative diseases. Studies focusing on these aspects can reveal specific metabolites and proteins that can halt or reverse the progressive neurodegenerative process leading to dopaminergic cell death in the brain. AREAS COVERED In this article, an overview of the current status of metabolomic and proteomic profiling in the neurodegenerative disease such as Parkinson's disease (PD) is presented. We discuss the importance of state-of-the-art metabolomics and proteomics using advanced analytical methodologies and their potential for discovering new biomarkers in PD. We critically review the research to date, highlighting how metabolomics and proteomics can have an important impact on early disease diagnosis, future therapy development and the identification of new biomarkers. Finally, we will discuss interactions between lipids and α-synuclein (SNCA) and also consider the role of SNCA in lipid metabolism. EXPERT OPINION Metabolomic and proteomic studies contribute to understanding the biological basis of PD pathogenesis, identifying potential biomarkers and introducing new therapeutic strategies. The complexity and multifactorial nature of this disease requires a comprehensive approach, which can be achieved by integrating just these two omic studies.
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Affiliation(s)
- Paulina Gątarek
- Institute Of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Lodz, Poland
- CONEM Poland Chemistry and Nutrition Research Group, Lodz University of Technology, Lodz, Poland
| | - Joanna Kałużna-Czaplińska
- Institute Of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Lodz, Poland
- CONEM Poland Chemistry and Nutrition Research Group, Lodz University of Technology, Lodz, Poland
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Nabi M, Tabassum N. Role of Environmental Toxicants on Neurodegenerative Disorders. FRONTIERS IN TOXICOLOGY 2022; 4:837579. [PMID: 35647576 PMCID: PMC9131020 DOI: 10.3389/ftox.2022.837579] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/22/2022] [Indexed: 12/22/2022] Open
Abstract
Neurodegeneration leads to the loss of structural and functioning components of neurons over time. Various studies have related neurodegeneration to a number of degenerative disorders. Neurological repercussions of neurodegeneration can have severe impacts on the physical and mental health of patients. In the recent past, various neurodegenerative ailments such as Alzheimer’s and Parkinson’s illnesses have received global consideration owing to their global occurrence. Environmental attributes have been regarded as the main contributors to neural dysfunction-related disorders. The majority of neurological diseases are mainly related to prenatal and postnatal exposure to industrially produced environmental toxins. Some neurotoxic metals, like lead (Pb), aluminium (Al), Mercury (Hg), manganese (Mn), cadmium (Cd), and arsenic (As), and also pesticides and metal-based nanoparticles, have been implicated in Parkinson’s and Alzheimer’s disease. The contaminants are known for their ability to produce senile or amyloid plaques and neurofibrillary tangles (NFTs), which are the key features of these neurological dysfunctions. Besides, solvent exposure is also a significant contributor to neurological diseases. This study recapitulates the role of environmental neurotoxins on neurodegeneration with special emphasis on major neurodegenerative disorders such as Alzheimer’s and Parkinson’s disease.
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Affiliation(s)
- Masarat Nabi
- Department of Environmental Science, University of Kashmir, Srinagar, India
- *Correspondence: Masarat Nabi, , orcid.org/0000-0003-1677-6498; Nahida Tabassum,
| | - Nahida Tabassum
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India
- *Correspondence: Masarat Nabi, , orcid.org/0000-0003-1677-6498; Nahida Tabassum,
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β-Hexachlorocyclohexane Drives Carcinogenesis in the Human Normal Bronchial Epithelium Cell Line BEAS-2B. Int J Mol Sci 2021; 22:ijms22115834. [PMID: 34072471 PMCID: PMC8199278 DOI: 10.3390/ijms22115834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022] Open
Abstract
Organochlorine pesticides constitute the majority of the total environmental pollutants, and a wide range of compounds have been found to be carcinogenic to humans. Among all, growing interest has been focused on β-hexachlorocyclohexane (β-HCH), virtually the most hazardous and, at the same time, the most poorly investigated member of the hexachlorocyclohexane family. Considering the multifaceted biochemical activities of β-HCH, already established in our previous studies, the aim of this work is to assess whether β-HCH could also trigger cellular malignant transformation toward cancer development. For this purpose, experiments were performed on the human normal bronchial epithelium cell line BEAS-2B exposed to 10 µM β-HCH. The obtained results strongly support the carcinogenic potential of β-HCH, which is achieved through both non-genotoxic (activation of oncogenic signaling pathways and proliferative activity) and indirect genotoxic (ROS production and DNA damage) mechanisms that significantly affect cellular macroscopic characteristics and functions such as cell morphology, cell cycle profile, and apoptosis. Taking all these elements into account, the presented study provides important elements to further characterize β-HCH, which appears to be a full-fledged carcinogenic agent.
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Shang N, Zhang L, Wang S, Huang T, Wang Y, Gao X, Xu S, Zhang J, Zhang L, Niu Q, Zhang Q. Increased aluminum and lithium and decreased zinc levels in plasma is related to cognitive impairment in workers at an aluminum factory in China: A cross-sectional study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 214:112110. [PMID: 33677379 DOI: 10.1016/j.ecoenv.2021.112110] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/21/2021] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Previous studies have shown that multiple imbalances of metal ions in the brain are closely associated with the neurodegenerative disorders. Our studies have shown that long-term working exposure to aluminum induces increased plasma aluminum levels and causes cognitive impairment in workers at aluminum factories. OBJECTIVE To explore the levels of nine metals in plasma and the effect on cognitive function among in-service workers. METHODS In this cross-sectional study, cognitive function was assessed using the Montreal Cognitive Assessment (MoCA), which included seven subitems: executive/visuospatial abilities; naming; attention and calculation; language; abstract; recall; and orientation. The plasma levels of nine kinds of metals were measured by inductively coupled plasma-mass spectrometry (ICP-MS). A multivariate generalized linear regression model and Bayesian kernel machine regression (BKMR) were selected to estimate the relationship between metal plasma level and MoCA scores with adjustment for confounders. RESULTS One hundred and eighty-seven workers participated in this study. In the multivariable generalized linear model, among these nine metals studied, five were related to the MoCA score: aluminum, lithium, cobalt, zinc and chromium. In the BKMR model, a significantly negative correlation between the plasma aluminum, lithium and the total MoCA score was observed. Moreover, for subitems on the MoCA scale, the plasma levels of lithium, aluminum, and zinc had a significant correlation with the executive/visuospatial abilities, naming, and orientation abilities, respectively. The log-transformation concentrations of plasma aluminum and lithium were negatively correlated with the executive/visuospatial abilities and naming abilities, respectively. The log-transformation plasma zinc concentration was positively correlated with orientation abilities. CONCLUSION Based on the results, we determined that increased aluminum and lithium and decreased zinc levels in plasma were associated with the incidence of mild cognitive impairment (MCI) in workers at a Chinese aluminum plant.
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Affiliation(s)
- Nan Shang
- Department of Pharmacy, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China; Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Lan Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Shuo Wang
- Department of Physical and Chemical, Beijing Chaoyang District Center for Disease Control and Prevention, Beijing 100021, China
| | - Tao Huang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yanhong Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xiaocheng Gao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Shimeng Xu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Jingqi Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Qinli Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China.
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Bradner JM, Kalia V, Lau FK, Sharma M, Bucher ML, Johnson M, Chen M, Walker DI, Jones DP, Miller GW. Genetic or Toxicant-Induced Disruption of Vesicular Monoamine Storage and Global Metabolic Profiling in Caenorhabditis elegans. Toxicol Sci 2021; 180:313-324. [PMID: 33538833 PMCID: PMC8041460 DOI: 10.1093/toxsci/kfab011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The proper storage and release of monoamines contributes to a wide range of neuronal activity. Here, we examine the effects of altered vesicular monoamine transport in the nematode Caenorhabditis elegans. The gene cat-1 is responsible for the encoding of the vesicular monoamine transporter (VMAT) in C. elegans and is analogous to the mammalian vesicular monoamine transporter 2 (VMAT2). Our laboratory has previously shown that reduced VMAT2 activity confers vulnerability on catecholamine neurons in mice. The purpose of this article was to determine whether this function is conserved and to determine the impact of reduced VMAT activity in C. elegans. Here we show that deletion of cat-1/VMAT increases sensitivity to the neurotoxicant 1-methyl-4-phenylpyridinium (MPP+) as measured by enhanced degeneration of dopamine neurons. Reduced cat-1/VMAT also induces changes in dopamine-mediated behaviors. High-resolution mass spectrometry-based metabolomics in the whole organism reveals changes in amino acid metabolism, including tyrosine metabolism in the cat-1/VMAT mutants. Treatment with MPP+ disrupted tryptophan metabolism. Both conditions altered glycerophospholipid metabolism, suggesting a convergent pathway of neuronal dysfunction. Our results demonstrate the evolutionarily conserved nature of monoamine function in C. elegans and further suggest that high-resolution mass spectrometry-based metabolomics can be used in this model to study environmental and genetic contributors to complex human disease.
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Affiliation(s)
- Joshua M Bradner
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
| | - Vrinda Kalia
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
| | - Fion K Lau
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
| | - Monica Sharma
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
| | - Meghan L Bucher
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
| | - Michelle Johnson
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
| | - Merry Chen
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
| | - Douglas I Walker
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York 10029, USA
| | - Dean P Jones
- Department of Medicine, School of Medicine, Emory University, Atlanta, Georgia 30303, USA
| | - Gary W Miller
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, USA
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Schneider Medeiros M, P. Reddy S, P. Socal M, Schumacher-Schuh AF, Mello Rieder CR. Occupational pesticide exposure and the risk of death in patients with Parkinson's disease: an observational study in southern Brazil. Environ Health 2020; 19:68. [PMID: 32552814 PMCID: PMC7298782 DOI: 10.1186/s12940-020-00624-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/08/2020] [Indexed: 05/30/2023]
Abstract
BACKGROUND Multiple studies have suggested that various pesticides are associated with a higher risk of developing Parkinson's disease (PD) and may influence the progression of the disease. However, the evidence regarding the impact of pesticide exposure on mortality among patients with PD is equivocal. This study examines whether pesticide exposure influences the risk of mortality among patients with PD in Southern Brazil. METHODS A total of 150 patients with idiopathic PD were enrolled from 2008 to 2013 and followed until 2019. In addition to undergoing a detailed neurologic evaluation, patients completed surveys regarding socioeconomic status and environmental exposures. RESULTS Twenty patients (13.3%) reported a history of occupational pesticide exposure with a median duration of exposure of 10 years (mean = 13.1, SD = 11.2). Patients with a history of occupational pesticide exposure had higher UPDRS-III scores, though there were no significant differences in regards to age, sex, disease duration, Charlson Comorbidity Index, and age at symptom onset. Patients with occupational pesticide exposure were more than twice as likely to die than their unexposed PD counterparts (HR = 2.32, 95% CI [1.15, 4.66], p = 0.018). Occupational pesticide exposure was also a significant predictor of death in a cox-proportional hazards model which included smoking and caffeine intake history (HR = 2.23, 95% CI [1.09, 4.59], p = 0.03)) and another which included several measures of socioeconomic status (HR = 3.91, 95% CI [1.32, 11.58], p = 0.01). CONCLUSION In this prospective cohort study, we found an increased all-cause mortality risk in PD patients with occupational exposure to pesticides. More studies are needed to further analyze this topic with longer follow-up periods, more detailed exposure information, and more specific causes of mortality.
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Affiliation(s)
- Márcio Schneider Medeiros
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2350 - Santa Cecilia, Porto Alegre, RS 90040-060 Brazil
| | - Sumanth P. Reddy
- Department of Global Health, University of Texas Southwestern Medical Center, Dallas, TX USA
| | - Mariana P. Socal
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Artur Francisco Schumacher-Schuh
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2350 - Santa Cecilia, Porto Alegre, RS 90040-060 Brazil
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS Brazil
| | - Carlos Roberto Mello Rieder
- Departamento de Neurologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS Brazil
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Shang N, Zhang P, Wang S, Chen J, Fan R, Chen J, Huang T, Wang Y, Duncan J, Zhang L, Niu Q, Zhang Q. Aluminum-Induced Cognitive Impairment and PI3K/Akt/mTOR Signaling Pathway Involvement in Occupational Aluminum Workers. Neurotox Res 2020; 38:344-358. [PMID: 32506341 DOI: 10.1007/s12640-020-00230-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 01/17/2023]
Abstract
Epidemiological studies indicate that long-term occupational exposure to aluminum (Al) causes neurotoxicity and cognitive impairment. While the molecular underpinnings associated with workers' cognitive impairment is unclear, one mechanism may involve Al-induced PI3K/Akt/mTOR activation and neuronal cell death, which impairs learning and memory in rats. Here, we sought to determine whether PI3K/Akt/mTOR is also associated with cognitive impairment in Al-exposed occupational workers. Cognitive function was screened by Mini-Mental State Examination (MMSE) and Clock-Drawing Test (CDT), and serum Al and PI3K/Akt/mTOR-associated gene expression was quantified. A negative correlation between serum Al and scores of MMSE and CDT was found, which might relate with downregulation of PI3K/Akt/mTOR. To determine the role of the PI3K/Akt/mTOR pathway cognitive function, we treated zebrafish with Al and observed a profound impairment in learning and memory. Increased brain Al levels was associated with decreased expression of PI3K/Akt/mTOR in Al-exposed zebrafish. Finally, rapamycin, an mTOR inhibitor, was added to isolate the role of mTOR specifically in the Al exposed zebrafish. The results suggested that Al induces learning and memory deficits by downregulating PI3K, Akt, and mTOR1 expression and inducing neuronal cell death like rapamycin group. This study indicates that aluminum exposure can cause cognitive impairment through PI3K/Akt/mTOR pathway, with mTOR activity being a critical player involved in this mechanism. Future studies are necessary to further characterize the role of PI3K/Akt/mTOR1 signaling in Al-induced neurocognitive decline among Al occupational workers. These findings draw attention to Al risk exposure among occupational workers and the need to implement novel safety and protective measures to mitigate neurocognitive health risks in the Al industrial workspace.
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Affiliation(s)
- Nan Shang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.,Department of Pharmacy, First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Ping Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Shuo Wang
- Department of Physical and Chemical, Beijing Chaoyang District Center for Disease Control and Prevention, Beijing, 100021, China
| | - Jianping Chen
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Rong Fan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jin Chen
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Tao Huang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yanhong Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Jeremy Duncan
- Department of Physiology, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Qinli Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China. .,Department of Pathology, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
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Xie F, Gao X, Yang W, Chang Z, Yang X, Wei X, Huang Z, Xie H, Yue Z, Zhou F, Wang Q. Advances in the Research of Risk Factors and Prodromal Biomarkers of Parkinson's Disease. ACS Chem Neurosci 2019; 10:973-990. [PMID: 30590011 DOI: 10.1021/acschemneuro.8b00520] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease in the world. With the advent of an aging population and improving life expectancy worldwide, the number of PD patients is expected to increase, which may lead to an urgent need for effective preventive and diagnostic strategies for PD. Although there is increasing research regarding the pathogenesis of PD, there is limited knowledge regarding the prevention of PD. Moreover, the diagnosis of PD depends on clinical criteria, which require the occurrence of bradykinesia and at least one symptom of rest tremor or rigidity. However, converging evidence from clinical, genetic, neuropathological, and imaging studies suggests the initiation of PD-specific pathology prior to the initial presentation of these classical motor clinical features by years or decades. This latent stage of neurodegeneration in PD is a particularly important stage for effective neuroprotective therapies, which might retard the progression or prevent the onset of PD. Therefore, the exploration of risk factors and premotor biomarkers is not only crucial to the early diagnosis of PD but is also helpful in the development of effective neuroprotection and health care strategies for appropriate populations at risk for PD. In this review, we searched and summarized ∼249 researches and 31 reviews focusing on the risk factors and prodromal biomarkers of PD and published in MEDLINE.
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Affiliation(s)
- Fen Xie
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Xiaoya Gao
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Wanlin Yang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Zihan Chang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Xiaohua Yang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Xiaobo Wei
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Zifeng Huang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Huifang Xie
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
| | - Zhenyu Yue
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, 1470 Madison Avenue, Hess Research Center Ninth Floor, New York, New York 10029, United States
| | - Fengli Zhou
- Department of Respiratory Medicine, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, P. R. China
| | - Qing Wang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Gongye Road 253, Guangzhou, Guangdong 510280, P. R. China
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Salari S, Bagheri M. In vivo, in vitro and pharmacologic models of Parkinson's disease. Physiol Res 2018; 68:17-24. [PMID: 30433804 DOI: 10.33549/physiolres.933895] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Parkinson's disease (PD), which is the second most common neurodegenerative disorder after Alzheimer's disease, is firstly defined after James Parkinson's report. It carries motor symptoms such as resting tremor, bradykinesia and rigidity of skeletal muscle and freezing of gait. Furthermore, non-motor symptoms such as cognitive and behavioral problems, besides sensory impairments are seen in the patients. However, they may also suffer from sleep disorders or autonomic dysfunction. Although there are some medications in order to symptomatic management, but unfortunately, scientist could not have found exact approaches to cure this disease. Hence, producing a model which can express the most pathophysiologic and behavioral aspects of the disease is a desire. In this paper, we aimed to describe the different models of Parkinson's disease in brief.
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Affiliation(s)
- S Salari
- Psychosocial Injuries Research Center, Ilam University of Medical Sciences, Ilam, Iran.
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The Antidiabetic Drug Liraglutide Minimizes the Non-Cholinergic Neurotoxicity of the Pesticide Mipafox in SH-SY5Y Cells. Neurotox Res 2018; 35:150-159. [PMID: 30088187 DOI: 10.1007/s12640-018-9941-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 07/24/2018] [Accepted: 07/31/2018] [Indexed: 12/14/2022]
Abstract
Organophosphorus (OPs) compounds have been widely used in agriculture, industry, and household, and the neurotoxicity induced by them is still a cause of concern. The main toxic mechanism of OPs is the inhibition of acetylcholinesterase (AChE); however, the delayed neuropathy induced by OPs (OPIDN) is mediated by other mechanisms such as the irreversible inhibition of 70% of NTE activity (neuropathy target esterase) that leads to axonal degeneration. Liraglutide is a long-lasting GLP-1 analog clinically used as antidiabetic. Its neurotrophic and neuroprotective effects have been demonstrated in vitro and in experimental models of neurodegenerative diseases. As in OPIDN, axonal degeneration also plays a role in neurodegenerative diseases. Therefore, this study investigated the protective potential of liraglutide against the neurotoxicity of OPs by using mipafox as a neuropathic agent (at a concentration able to inhibit and age 70% of NTE activity) and a neuronal model with SH-SY5Y neuroblastoma cells, which express both esterases. Liraglutide protected cells against the neurotoxicity of mipafox by increasing neuritogenesis, the uptake of glucose, the levels of cytoskeleton proteins, and synaptic-plasticity modulators, besides decreasing the pro-inflammatory cytokine interleukin 1β and caspase-3 activity. This is the first study to suggest that liraglutide might induce beneficial effects against the delayed, non-cholinergic neurotoxicity of OPs.
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Pujol J, Fenoll R, Macià D, Martínez-Vilavella G, Alvarez-Pedrerol M, Rivas I, Forns J, Deus J, Blanco-Hinojo L, Querol X, Sunyer J. Airborne copper exposure in school environments associated with poorer motor performance and altered basal ganglia. Brain Behav 2016; 6:e00467. [PMID: 27134768 PMCID: PMC4842931 DOI: 10.1002/brb3.467] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 03/02/2016] [Accepted: 03/09/2016] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Children are more vulnerable to the effects of environmental elements. A variety of air pollutants are among the identified factors causing neural damage at toxic concentrations. It is not obvious, however, to what extent the tolerated high levels of air pollutants are able to alter brain development. We have specifically investigated the neurotoxic effects of airborne copper exposure in school environments. METHODS Speed and consistency of motor response were assessed in 2836 children aged from 8 to 12 years. Anatomical MRI, diffusion tensor imaging, and functional MRI were used to directly test the brain repercussions in a subgroup of 263 children. RESULTS Higher copper exposure was associated with poorer motor performance and altered structure of the basal ganglia. Specifically, the architecture of the caudate nucleus region was less complete in terms of both tissue composition and neural track water diffusion. Functional MRI consistently showed a reciprocal connectivity reduction between the caudate nucleus and the frontal cortex. CONCLUSIONS The results establish an association between environmental copper exposure in children and alterations of basal ganglia structure and function.
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Affiliation(s)
- Jesus Pujol
- MRI Research Unit Hospital del Mar Barcelona Spain; Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21 Barcelona Spain
| | | | - Dídac Macià
- MRI Research Unit Hospital del Mar Barcelona Spain
| | | | - Mar Alvarez-Pedrerol
- Centre for Research in Environmental Epidemiology (CREAL) Barcelona Catalonia Spain; Pompeu Fabra University Barcelona Catalonia Spain; Ciber on Epidemiology and Public Health (CIBERESP) Barcelona Spain
| | - Ioar Rivas
- Centre for Research in Environmental Epidemiology (CREAL) Barcelona Catalonia Spain; Pompeu Fabra University Barcelona Catalonia Spain; Ciber on Epidemiology and Public Health (CIBERESP) Barcelona Spain; Institute of Environmental Assessment and Water Research (IDAEA-CSIC) Barcelona Catalonia Spain
| | - Joan Forns
- Centre for Research in Environmental Epidemiology (CREAL) Barcelona Catalonia Spain; Pompeu Fabra University Barcelona Catalonia Spain; Ciber on Epidemiology and Public Health (CIBERESP) Barcelona Spain
| | - Joan Deus
- MRI Research Unit Hospital del Mar Barcelona Spain; Department of Clinical and Health Psychology Autonomous University of Barcelona Barcelona Spain
| | | | - Xavier Querol
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC) Barcelona Catalonia Spain
| | - Jordi Sunyer
- Centre for Research in Environmental Epidemiology (CREAL) Barcelona Catalonia Spain; Pompeu Fabra University Barcelona Catalonia Spain; Ciber on Epidemiology and Public Health (CIBERESP) Barcelona Spain; IMIM (Hospital del Mar Medical Research Institute) Barcelona Catalonia Spain
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Parkinson's Disease: The Mitochondria-Iron Link. PARKINSONS DISEASE 2016; 2016:7049108. [PMID: 27293957 PMCID: PMC4886095 DOI: 10.1155/2016/7049108] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/12/2016] [Accepted: 04/13/2016] [Indexed: 12/14/2022]
Abstract
Mitochondrial dysfunction, iron accumulation, and oxidative damage are conditions often found in damaged brain areas of Parkinson's disease. We propose that a causal link exists between these three events. Mitochondrial dysfunction results not only in increased reactive oxygen species production but also in decreased iron-sulfur cluster synthesis and unorthodox activation of Iron Regulatory Protein 1 (IRP1), a key regulator of cell iron homeostasis. In turn, IRP1 activation results in iron accumulation and hydroxyl radical-mediated damage. These three occurrences-mitochondrial dysfunction, iron accumulation, and oxidative damage-generate a positive feedback loop of increased iron accumulation and oxidative stress. Here, we review the evidence that points to a link between mitochondrial dysfunction and iron accumulation as early events in the development of sporadic and genetic cases of Parkinson's disease. Finally, an attempt is done to contextualize the possible relationship between mitochondria dysfunction and iron dyshomeostasis. Based on published evidence, we propose that iron chelation-by decreasing iron-associated oxidative damage and by inducing cell survival and cell-rescue pathways-is a viable therapy for retarding this cycle.
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