1
|
Cheng BJ, Sheng J, Wang HL, Wang Y, Cao HJ, Li XD, Zhou TT, Meng XL, Nie HH, Wang SF, Zhang DM, Chen GM, Tao FB, Yang LS. Selenium attenuates the association of co-exposure to arsenic, cadmium, and lead with cognitive function among Chinese community-dwelling older adults. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:36377-36391. [PMID: 36547832 DOI: 10.1007/s11356-022-24783-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
The effects of interactions between the toxic and essential metal mixtures on cognitive function are poorly understood. This study aims to identify the joint association of arsenic (As), cadmium (Cd), and lead (Pb) with cognitive function in older adults and the moderating role of selenium (Se), zinc (Zn), and copper (Cu) in this association. This study included 1000 community-dwelling older adults. Cognitive function was assessed by the Mini-Mental State Examination (MMSE). Blood concentrations of As, Cd, Pb, Se, Zn, and Cu were measured using inductively coupled plasma mass spectrometry. Linear regression and Bayesian kernel machine regression (BKMR) models were applied to assess the individual and joint associations of As, Cd, and Pb with cognitive function and to examine whether Se, Zn, and Cu (individually and as a mixture) modified these associations. In the adjusted single-metal models, both Cd (β = - 0.37, 95% CI: - 0.73 to - 0.01) and Pb (β = - 0.44, 95% CI: - 0.86 to - 0.02) were associated with MMSE scores, while Se (β = 0.71, 95% CI: 0.30 to 1.13) exhibited a positive relationship with MMSE scores. Univariate exposure-response functions from BKMR models showed similar results. Moreover, the toxic metal mixture (As, Cd, and Pb) exhibited a significant negative association with MMSE scores in a dose-response pattern, with Pb being the greatest contributor within the mixture. The negative association of Pb alone or the toxic metal mixture with MMSE scores became weaker at higher concentrations of Se within its normal range, especially when Se levels were greater than the median (89.18 μg/L). Our findings support that Se can attenuate the negative associations of exposure to single Pb or the As, Cd, and Pb mixtures with cognitive function. Future prospective studies are needed to replicate our findings.
Collapse
Affiliation(s)
- Bei-Jing Cheng
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Jie Sheng
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China
| | - Hong-Li Wang
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Yuan Wang
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Hong-Juan Cao
- Lu'an Center for Disease Control and Prevention, Lu'an, 237008, Anhui, China
| | - Xiu-De Li
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
- Lu'an Center for Disease Control and Prevention, Lu'an, 237008, Anhui, China
| | - Ting-Ting Zhou
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
- Hefei Center for Disease Control and Prevention, Hefei, 230051, Anhui, China
| | - Xiang-Long Meng
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Huan-Huan Nie
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Su-Fang Wang
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Dong-Mei Zhang
- School of Health Services Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Gui-Mei Chen
- School of Health Services Management, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Fang-Biao Tao
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China
| | - Lin-Sheng Yang
- School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China.
- Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei, 230032, Anhui, China.
| |
Collapse
|
2
|
Joint Toxicity of a Multi-Heavy Metal Mixture and Chemoprevention in Sprague Dawley Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17041451. [PMID: 32102388 PMCID: PMC7068392 DOI: 10.3390/ijerph17041451] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 11/16/2022]
Abstract
To explore the joint toxicity and bio-accumulation of multi-heavy metals and potential chemoprevention strategies, Male Sprague Dawley (SD) rats (n = 30) were treated orally once a week for six months with 500mg/kg•bw of eight heavy metals which were commonly identified in aquatic products in the Ningbo area including chromium, manganese, nickel, copper, zinc, cadmium, mercury, and lead. At the same time, 200mg/kg•bw of epigallocatechin-3-gallate (EGCG), trisodium citrate dihydrate (TCD) or glutathione (GSH) were administered to evaluate their antagonistic effects against adverse effects of multi-heavy metal mixture. The Morris water maze test was used to evaluate spatial learning and memory in the treated rats. Then the rats were anesthetized by pentobarbital sodium (40 mg/kg•bw) to obtain blood samples for biochemical analysis and organs (heart, liver, spleen, lungs, kidneys, brain, testis) to be conducted for biopsy and organ coefficients. Inductively coupled plasma mass spectrometer (ICP-MS) was used to analyze the concentrations of heavy metals. Results indicated that six months of exposure to a multi-heavy metal mixture under this experimental dosage resulted in accumulation in organs and adverse effects on the blood, reproductive system, and liver function. EGCG, TCD or GSH all showed certain chemoprevention effects against the joint toxicity induced by the multi-heavy metal mixture and indicated alleviation and the potential mechanism that also included the promotion of excretion of metals to which animals were exposed.
Collapse
|
3
|
Garza-Lombó C, Posadas Y, Quintanar L, Gonsebatt ME, Franco R. Neurotoxicity Linked to Dysfunctional Metal Ion Homeostasis and Xenobiotic Metal Exposure: Redox Signaling and Oxidative Stress. Antioxid Redox Signal 2018; 28:1669-1703. [PMID: 29402131 PMCID: PMC5962337 DOI: 10.1089/ars.2017.7272] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
SIGNIFICANCE Essential metals such as copper, iron, manganese, and zinc play a role as cofactors in the activity of a wide range of processes involved in cellular homeostasis and survival, as well as during organ and tissue development. Throughout our life span, humans are also exposed to xenobiotic metals from natural and anthropogenic sources, including aluminum, arsenic, cadmium, lead, and mercury. It is well recognized that alterations in the homeostasis of essential metals and an increased environmental/occupational exposure to xenobiotic metals are linked to several neurological disorders, including neurodegeneration and neurodevelopmental alterations. Recent Advances: The redox activity of essential metals is key for neuronal homeostasis and brain function. Alterations in redox homeostasis and signaling are central to the pathological consequences of dysfunctional metal ion homeostasis and increased exposure to xenobiotic metals. Both redox-active and redox-inactive metals trigger oxidative stress and damage in the central nervous system, and the exact mechanisms involved are starting to become delineated. CRITICAL ISSUES In this review, we aim to appraise the role of essential metals in determining the redox balance in the brain and the mechanisms by which alterations in the homeostasis of essential metals and exposure to xenobiotic metals disturb the cellular redox balance and signaling. We focus on recent literature regarding their transport, metabolism, and mechanisms of toxicity in neural systems. FUTURE DIRECTIONS Delineating the specific mechanisms by which metals alter redox homeostasis is key to understand the pathological processes that convey chronic neuronal dysfunction in neurodegenerative and neurodevelopmental disorders. Antioxid. Redox Signal. 28, 1669-1703.
Collapse
Affiliation(s)
- Carla Garza-Lombó
- 1 Redox Biology Center and School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln , Lincoln, Nebraska.,2 Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas , Universidad Nacional Autónoma de México, Mexico City, México
| | - Yanahi Posadas
- 3 Departamentos de Farmacología y de, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México .,4 Departamentos de Química, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México
| | - Liliana Quintanar
- 4 Departamentos de Química, Centro de Investigación y de Estudios Avanzados (CINVESTAV) , Mexico City, México
| | - María E Gonsebatt
- 2 Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas , Universidad Nacional Autónoma de México, Mexico City, México
| | - Rodrigo Franco
- 1 Redox Biology Center and School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln , Lincoln, Nebraska
| |
Collapse
|
4
|
Xie Y, Liu Q, Zheng L, Wang B, Qu X, Ni J, Zhang Y, Du X. Se-Methylselenocysteine Ameliorates Neuropathology and Cognitive Deficits by Attenuating Oxidative Stress and Metal Dyshomeostasis in Alzheimer Model Mice. Mol Nutr Food Res 2018; 62:e1800107. [PMID: 29688618 DOI: 10.1002/mnfr.201800107] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/14/2018] [Indexed: 12/13/2022]
Abstract
SCOPE Se-methylselenocysteine (SMC) is a major selenocompound in selenium (Se)-enriched plants. Se is vital for proper brain function, and Se-deficient is considered to be related with cognitive impairment and Alzheimer's disease (AD). The potential of SMC in intervening cognitive deficits and neuropathology of triple transgenic AD (3 × Tg-AD) mice is evaluated for the first time. METHODS AND RESULTS AD mice are treated with SMC (0.75 mg kg-1 BW per day) in their drinking water for 10 months. Results reveal that SMC 1) reduces oxidative stress and neuro-inflammation; 2) modulates the distribution and levels of several metal ions; 3) decreases amyloid-β peptide (Aβ) generation by inhibiting the expression of its precursor protein APP and β-secretase (BACE1); and 4) attenuates tau hyperphosphorylation and neurofibrillary tangles (NFT) formation via promoting protein phosphatase 2A (PP2A) activity, thereby preserving synaptic proteins and neuron activities and finally improving spatial learning and memory deficits in AD model mice. The authors suggest that the inhibitory effect of SMC on MEK/ERK activation may play a critical role in intervening AD progression. CONCLUSIONS These results reveal that SMC is powerful in ameliorating AD-related neuropathology and cognitive deficits via modulating oxidative stress, metal homeostasis, and extracellular signal-regulated kinase (ERK) activation.
Collapse
Affiliation(s)
- Yongli Xie
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Qiong Liu
- Department of Marine Biology, Shenzhen Key Laboratory of Marine Biotechnology and Ecology, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Lin Zheng
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - BingTao Wang
- Shenzhen Entry-Exit Inspection and Quarantine Bureau, Futian Huanggang Port, Shenzhen, 518033, Guangdong Province, P. R. China
| | - Xiaogang Qu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jiazuan Ni
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yan Zhang
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xiubo Du
- College of Life Sciences and Oceanography, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| |
Collapse
|
6
|
Moshtaghie AA, Malekpouri P, Moshtaghie M, Mohammadi-Nejad M, Ani M. Protective effects of copper against aluminum toxicity on acetylcholinesterase and catecholamine contents of different regions of rat's brain. Neurol Sci 2013; 34:1639-50. [PMID: 23354609 DOI: 10.1007/s10072-013-1305-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 01/09/2013] [Indexed: 10/27/2022]
Abstract
The probable protective effects of copper on the acetylcholinesterase activity and the catecholamine levels in cerebellum, cortex and mid-brain of rat, which was intoxicated by aluminum, were studied during short and long terms. In this respect, male Wistar rats weighing 200-250 g were received daily intraperitoneal doses of aluminum, copper and also combined doses of both metals for 15 days (Al 10 mg kg(-1) BW and Cu 1 mg kg(-1) BW), 30 days (Al 5 mg kg(-1) BW and Cu 0.5 mg kg(-1) BW) and 60 days (Al 1 mg kg(-1) BW and Cu 0.1 mg kg(-1) BW), respectively. The results obtained from the short period of exposure (15 days) showed that aluminum produced significant (P < 0.05) decreases in the acetylcholinesterase activity by 24.14, 23.30 and 25.81 %. Similarly, the catecholamine levels were reduced by 10.69, 12.25 and 12.64 % in cerebellum, cortex and mid-brain, respectively. Treatment with copper increases both acetylcholinesterase activity and catecholamine contents of cerebellum, cortex and mid-brain. Simultaneous injection of copper and aluminum increased both acetylcholinesterase activity and catecholamine contents in all three parts of rat brain when compared to aluminum-treated group. Same results were also observed following 30 and 60 days of exposures. In overall, it has been found that copper may have a protective-like ability to hinder aluminum toxicity in the brain.
Collapse
Affiliation(s)
- Ali Asghar Moshtaghie
- Department of Clinical Biochemistry, School of Pharmacy, Isfahan University of Medical Science, Isfahan, Iran
| | | | | | | | | |
Collapse
|
8
|
Malekpouri P, Moshtaghie AA, Kazemian M, Soltani M. Protective effect of zinc on related parameters to bone metabolism in common carp fish (Cyprinus carpio L.) intoxified with cadmium. FISH PHYSIOLOGY AND BIOCHEMISTRY 2011; 37:187-196. [PMID: 20839051 DOI: 10.1007/s10695-010-9430-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Accepted: 08/30/2010] [Indexed: 05/29/2023]
Abstract
The short term effects of waterborne cadmium (Cd(+2)) on the levels of serum parameters related to bone metabolism including calcium (Ca), inorganic phosphorus (P(i)) and alkaline phosphatase (ALP) in common carp fish (Cyprinus carpio L.) were studied. Fish were treated with varying concentrations of Cd(+2) (0.22, 1.1 and 2.2 mg l(-1)) daily for 14 days. The results obtained show that serum P(i) and ALP concentrations were elevated by increasing Cd(+2) concentration in water containing fish whereas serum Ca level was decreased. At the same time, the protective role of waterborne zinc (Zn(+2), 1 mg l(-1)) on the same parameters was also investigated. Results showing that daily treatment of fish with Zn(+2), increased the concentrations of Ca and ALP in serum by 2.07 and 1.86 fold and decreased serum P(i) level by 57.7% in comparison with Cd(+2) treatment. The combination of Cd(+2) and Zn(+2) on the same parameters was studied next. There was a significant (P < 0.05) elevation in serum Ca and ALP levels in comparison with Cd(+2) treatment. Decreasing in serum P(i) level was not significant in comparison with Cd(+2) treatments. The protective effect of Zn(+2) on Cd(+2) disturbances in serum parameters related to bone metabolism in this manuscript has been also discussed.
Collapse
Affiliation(s)
- Pedram Malekpouri
- Department of Fisheries Science, Agriculture and Natural Resources School, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | | | | | | |
Collapse
|