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Zhou F, Xu Q, Chen Y, Zhang W, Qiu R. Iodine enrichment in the groundwater in South China and its hydrogeochemical control. J Environ Sci (China) 2024; 142:226-235. [PMID: 38527888 DOI: 10.1016/j.jes.2023.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 03/27/2024]
Abstract
In North China, iodine-rich groundwater has been extensively studied, but few in South China. This study aimed to investigate the characteristics of iodine-rich groundwater in South China and identify potential contamination sources. The results revealed that the average concentration of iodine in groundwater was 890 µg/L, with a maximum concentration of 6350 µg/L, exceeding the permitted levels recommended by the World Health Organization (5-300 µg/L). Notably, the enrichment of iodide occurred in acidic conditions (pH = 6.6) and a relatively low Eh environment (Eh = 198.4 mV). Pearson correlation and cluster analyses suggested that the enrichment of iodide could be attributed to the intensified redox process involving Mn(II), iodine (I2), or iodate (IO3-) in the soil. The strong affinity between Mn(II) and I2/IO3- facilitated their interaction, resulting in the formation and mobilization of I- from the soil to the groundwater. Leaching experiments further confirmed that reducing substances (such as sodium sulfides, ascorbic acids, and fulvic acids) in the soil with low dissolved oxygen (DO) levels (< 1.0 mg/L) enhanced the dissolution of iodine species. Conversely, higher DO content (> 3.8 mg/L) promoted the oxidation of I- into I2 or IO3-, leading to its stabilization. This research provides new insights into the characteristics and mechanisms of I- enrichment in groundwater in South China, and emphasizes the significance of the redox reactions involving Mn(II) and I2/IO3-, as well as the influence of soil properties in regulating the occurrence and transportation of iodine species within groundwater systems.
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Affiliation(s)
- Fengping Zhou
- Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Qianting Xu
- Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yuyun Chen
- Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Weihua Zhang
- Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; Shenzhen Research Institute, Sun Yat-sen University, Shenzhen 518057, China.
| | - Rongliang Qiu
- Guangdong Provincial Key Laboratory of Environmental Pollution and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, School of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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Sarawi WS, Attia HA, Alomar HA, Alhaidar R, Rihan E, Aldurgham N, Ali RA. The protective role of sesame oil against Parkinson's-like disease induced by manganese in rats. Behav Brain Res 2024; 465:114969. [PMID: 38548024 DOI: 10.1016/j.bbr.2024.114969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024]
Abstract
Chronic exposure to manganese (Mn) results in motor dysfunction, biochemical and pathological alterations in the brain. Oxidative stress, inflammation, and dysfunction of dopaminergic and GABAergic systems stimulate activating transcription factor-6 (ATF-6) and protein kinase RNA-like ER kinase (PERK) leading to apoptosis. This study aimed to investigate the protective effect of sesame oil (SO) against Mn-induced neurotoxicity. Rats received 25 mg/kg MnCl2 and were concomitantly treated with 2.5, 5, or 8 ml/kg of SO for 5 weeks. Mn-induced motor dysfunction was indicated by significant decreases in the time taken by rats to fall during the rotarod test and in the number of movements observed during the open field test. Also, Mn resulted in neuronal degeneration as observed by histological staining. The striatal levels of lipid peroxides and reduced glutathione (oxidative stress markers), interleukin-6 and tumor necrosis factor-α (inflammatory markers) were significantly elevated. Mn significantly reduced the levels of dopamine and Bcl-2, while GABA, PERK, ATF-6, Bax, and caspase-3 were increased. Interestingly, all SO doses, especially at 8 ml/kg, significantly improved locomotor activity, biochemical deviations and reduced neuronal degeneration. In conclusion, SO may provide potential therapeutic benefits in enhancing motor performance and promoting neuronal survival in individuals highly exposed to Mn.
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Affiliation(s)
- Wedad S Sarawi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia.
| | - Hala A Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Hatun A Alomar
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Rawan Alhaidar
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Esraa Rihan
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Nora Aldurgham
- College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Rehab A Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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3
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He W, Wang X, Yang X, Zhang G, Zhang J, Chen L, Niu P, Chen T. Melatonin mitigates manganese-induced neural damage via modulation of gut microbiota-metabolism in mice. Sci Total Environ 2024; 923:171474. [PMID: 38447734 DOI: 10.1016/j.scitotenv.2024.171474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/02/2024] [Accepted: 03/02/2024] [Indexed: 03/08/2024]
Abstract
Manganese (Mn), a common environmental and occupational risk factor for Parkinson's disease (PD), can cause central nervous system damage and gastrointestinal dysfunction. The melatonin has been shown to effectively improve neural damage and intestinal microbiota disturbances in animal models. This research investigated the mechanism by which exogenous melatonin prevented Mn-induced neurogenesis impairment and neural damage. Here, we established subchronic Mn-exposed mice model and melatonin supplement tests to evaluate the role of melatonin in alleviating Mn-induced neurogenesis impairment. Mn induced neurogenesis impairment and microglia overactivation, behavioral dysfunction, gut microbiota dysbiosis and serum metabolic disorder in mice. All these events were reversed with the melatonin supplement. The behavioral tests revealed that melatonin group showed approximately 30 % restoration of motor activity. According to quantitative real time polymerase chain reaction (qPCR) results, melatonin group showed remarkable restoration of the expression of dopamine neurons and neurogenesis markers, approximately 46.4 % (TH), 68.4 % (DCX in hippocampus) and 48 % (DCX in striatum), respectively. Interestingly, melatonin increased neurogenesis probably via the gut microbiota and metabolism modulation. The correlation analysis of differentially expressed genes associated with hippocampal neurogenesis indicated that Firmicutes-lipid metabolism might mediate the critical repair role of melatonin in neurogenesis in Mn-exposed mice. In conclusion, exogenous melatonin supplementation can promote neurogenesis, and restore neuron loss and neural function in Mn-exposed mice, and the multi-omics results provide new research ideas for future mechanistic studies.
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Affiliation(s)
- Weifeng He
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xueting Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xin Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Gaoman Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Junrou Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Li Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Piye Niu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
| | - Tian Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
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Wu A, Li J, Yuan J, Zhang N, Zhang Y, Li M, Zhu T. Association of Blood Manganese and Preeclampsia: A Systematic Review and Meta-analysis. Biol Trace Elem Res 2024; 202:1843-1855. [PMID: 37612487 DOI: 10.1007/s12011-023-03796-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/27/2023] [Indexed: 08/25/2023]
Abstract
A systematic review and meta-analysis was performed to comprehensively evaluate the association between manganese (Mn) level and preeclampsia (PE) during pregnancy. Relevant observational studies were retrieved by searching Medline, Web of Science, Embase, and Cochrane Library from database inception to May 25, 2023. Pooling results was performed using a random-effects model incorporating heterogeneity. This meta-analysis incorporated 18 observational studies, which included 1113 women with PE and 5480 normotensive pregnant women. Pooled results showed that compared to normotensive control, women with PE had significantly lower blood Mn concentration (standardized mean difference: -0.36, 95% confidence interval: -0.50 to -0.22, p < 0.001; I2 = 67%). Subgroup analysis showed that the results were not significantly affected by study country (African, Asian, or Western), timing of blood sampling (before, at, or after the diagnosis of PE), mean blood Mn level of controls, or numbers of confounding factors adjusted (p for subgroup analysis all > 0.05), while methods for measuring blood Mn levels might affect the results (p for subgroup difference < 0.001). Finally, pooled results of three studies showed that a high level of blood Mn was related to a low risk of PE with blood Mn analyzed in continuous (risk ratio [RR]: 0.71, 95% CI: 0.59 to 0.85, p < 0.001; I2 = 0%) and categorized variables (RR: 0.50, 95% CI: 0.30 to 0.82, p = 0.006; I2 = 32%). In conclusion, a low blood level of Mn may be associated with PE in pregnant women.
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Affiliation(s)
- Aifang Wu
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China
| | - Jingna Li
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China
| | - Jing Yuan
- Department of Medical Information, The 960th Hospital of the People's Liberation Army of China, Jinan, 250031, China
| | - Ningning Zhang
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China
| | - Ying Zhang
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China
| | - Min Li
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China
| | - Tongyu Zhu
- Department of Gynecology and Obstetrics, The 960th Hospital of the People's Liberation Army of China, 25 Shifan Road, Jinan, 250031, China.
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Jones DP. Redox organization of living systems. Free Radic Biol Med 2024; 217:179-189. [PMID: 38490457 DOI: 10.1016/j.freeradbiomed.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/08/2024] [Accepted: 03/13/2024] [Indexed: 03/17/2024]
Abstract
Redox organization governs an underlying simplicity in living systems. Critically, redox reactions enable the essential characteristics of life: extraction of energy from the environment, use of energy to support metabolic and structural organization, use of dynamic redox responses to defend against environmental threats, and use of redox mechanisms to direct differentiation of cells and organ systems essential for reproduction. These processes are sustained through a redox context in which electron donor/acceptor couples are poised at substantially different steady-state redox potentials, some with relatively reducing steady states and others with relatively oxidizing steady states. Redox-sensitive thiols of the redox proteome, as well as low molecular weight redox-active molecules, are maintained individually by the kinetics of oxidation-reduction within this redox system. Recent research has revealed opposing network interactions of the metallome, redox proteome, metabolome and transcriptome, which appear to be an evolved redox response structure to maintain stability of an organism in the presence of variable oxidative environments. Considerable opportunity exists to improve human health through detailed understanding of these redox networks so that targeted interventions can be developed to support new avenues for redox medicine.
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Affiliation(s)
- Dean P Jones
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University, Whitehead Biomedical Research Building, 615 Michael St, RM205P, Atlanta, GA, 30322, USA.
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Fang YY, Gan CL, Peng JC, Xie YH, Song HX, Mo YQ, Ou SY, Aschner M, Jiang YM. Effects of Manganese and Iron, Alone or in Combination, on Apoptosis in BV2 Cells. Biol Trace Elem Res 2024; 202:2241-2252. [PMID: 37500820 DOI: 10.1007/s12011-023-03792-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023]
Abstract
The aim of study was to address the effects of manganese and iron, alone and in combination, on apoptosis of BV2 microglia cells, and to determine if combined exposure to these metals augments their individual toxicity. We used a murine microglial BV2 cell line. Cell cytotoxicity was analyzed by propidium iodide (PI) exclusion assay. Cell ROS production was analyzed by 2', 7'-dichlorofluorescin diacetate (DCFH-DA) probe staining. Pro-inflammatory cytokine production was monitored by ELISA. Cell apoptosis was analyzed by PE Annexin V/7-AAD staining. Mitochondrial membrane integrity was analyzed by flow cytometry. We used immunoblotting to analyze the effect of manganese, iron alone, or their combined exposure on the activation of caspase9, P53, Bax, and Bcl2 apoptosis signaling pathways. Caspase3 activity was determined using a Colorimetric. Manganese, iron, and their combined exposure for 24 h induced the activation of BV2 microglia cells and increased ROS production and the expression of the inflammatory cytokines, IL-1β and TNF-α. And we also found that the apoptosis rate increased, mitochondrial membrane potential decreased, apoptosis-related proteins caspase9, P53, Bax, and Bcl2 expression increased, and caspase3 activity increased. Furthermore, we found that combined manganese-iron cytotoxicity was lower than that induced by manganese exposure alone. Manganese, iron alone, or their combination exposure can induce apoptosis in glial cells. Iron can reduce the toxicity of manganese, and there is an antagonistic effect between manganese and iron.
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Affiliation(s)
- Yuan-Yuan Fang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Cui-Liu Gan
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Jian-Chao Peng
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Yu-Han Xie
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Han-Xiao Song
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Ya-Qi Mo
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Shi-Yan Ou
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China
| | - Michael Aschner
- Department of Molecular Pharmacology at Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Yue-Ming Jiang
- Department of Toxicology, School of Public Health, Guangxi Medical University, 22 Shuang-Yong Rd., Nanning, 530021, Guangxi, China.
- Key Laboratory of Prevention and Control of Highly Prevalent Diseases in Guangxi Colleges and Universities, Medical University of Guangxi, Nanning, 530021, China.
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Beaudin SA, Howard S, Santiago N, Strupp BJ, Smith DR. Methylphenidate alleviates cognitive dysfunction caused by early manganese exposure: Role of catecholaminergic receptors. Prog Neuropsychopharmacol Biol Psychiatry 2024; 131:110949. [PMID: 38266866 DOI: 10.1016/j.pnpbp.2024.110949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/19/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
Environmental manganese (Mn) exposure is associated with impaired attention and psychomotor functioning, as well as impulsivity/hyperactivity in children and adolescents. We have shown previously that developmental Mn exposure can cause these same dysfunctions in a rat model. Methylphenidate (MPH) lessens impairments in attention, impulse control, and psychomotor function in children, but it is unknown whether MPH ameliorates these dysfunctions when induced by developmental Mn exposure. Here, we sought to (1) determine whether oral MPH treatment ameliorates the lasting attention and sensorimotor impairments caused by developmental Mn exposure, and (2) elucidate the mechanism(s) of Mn neurotoxicity and MPH effectiveness. Rats were given 50 mg Mn/kg/d orally over PND 1-21 and assessed as adults in a series of attention, impulse control and sensorimotor tasks during oral MPH treatment (0, 0.5, 1.5, or 3.0 mg/kg/d). Subsequently, selective catecholaminergic receptor antagonists were administered to gain insight into the mechanism(s) of action of Mn and MPH. Developmental Mn exposure caused persistent attention and sensorimotor impairments. MPH treatment at 0.5 mg/kg/d completely ameliorated the Mn attentional dysfunction, whereas the sensorimotor deficits were ameliorated by the 3.0 mg/kg/d MPH dose. Notably, the MPH benefit on attention was only apparent after prolonged treatment, while MPH efficacy for the sensorimotor deficits emerged early in treatment. Selectively antagonizing D1, D2, or α2A receptors had no effect on the Mn-induced attentional dysfunction or MPH efficacy in this domain. However, antagonism of D2R attenuated the Mn sensorimotor deficits, whereas the efficacy of MPH to ameliorate those deficits was diminished by D1R antagonism. These findings demonstrate that MPH is effective in alleviating the lasting attentional and sensorimotor dysfunction caused by developmental Mn exposure, and they clarify the mechanisms underlying developmental Mn neurotoxicity and MPH efficacy. Given that the cause of attention and psychomotor deficits in children is often unknown, these findings have implications for the treatment of environmentally induced attentional and psychomotor dysfunction in children more broadly.
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Affiliation(s)
- Stephane A Beaudin
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Shanna Howard
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Nicholas Santiago
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Barbara J Strupp
- Division of Nutritional Sciences, and Department of Psychology, Cornell University, Ithaca, NY, USA
| | - Donald R Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA.
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Liang Q, Jing J, He H, Huang X, Liu J, Wang M, Qi Z, Zhang L, Huang Z, Yan Y, Liu S, Gao M, Zou Y. Manganese induces podocyte injury through regulating MTDH/ALKBH5/NLRP10 axis: Combined analysis at epidemiology and molecular biology levels. Environ Int 2024; 187:108672. [PMID: 38648691 DOI: 10.1016/j.envint.2024.108672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/01/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Manganese (Mn) is an essential micronutrient required for various biological processes but excess exposure to Mn can cause neurotoxicity. However, there are few reports regarding the toxicity effect of Mn on the kidney as well as the underlying molecule mechanism. Herein, in vivo experiments were adopted to assess the toxicity effects associated with Mn, and found that chronic Mn treatment induced the injury of glomerular podocytes but not renal tubule in rats. Genome-wide CRISPR/Cas9 knockout screen was then employed to explore the biotargets of the toxic effect of Mn on podocytes. Through functional analyses of the enriched candidate genes, NLRP10 was found to be significantly up-regulated and mediated Mn-induced podocyte apoptosis. Further mechanism investigation revealed that NLRP10 expression was regulated by demethylase AlkB homolog 5 (ALKBH5) in an m6A-dependent fashion upon Mn treatment. Moreover, Mn could directly bind to Metadherin (MTDH) and promoted its combination with ALKBH5 to promote NLRP10 expression and cell apoptosis. Finally, logistic regressions, restricted cubic spline regressions and uniform cubic B-spline were used to investigate the association between Mn exposure and the risk of chronic kidney disease (CKD). A U-shaped nonlinear relationship between CKD risk and plasma Mn level, and a positive linear relationship between CKD risk and urinary Mn levels was found in our case-control study. To sum up, our findings illustrated that m6A-dependent NLRP10 regulation is indispensable for podocyte apoptosis and nephrotoxicity induced by Mn, providing fresh insight into understanding the health risk of Mn and a novel target for preventing renal injury in Mn-intoxicated patients.
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Affiliation(s)
- Qiuju Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Jiajun Jing
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Huiming He
- School of Public Health, Guangxi Medical University, Nanning 530021, China; Institute of Parasitic Disease Control and Prevention, Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning 530021, China
| | - Xiaofeng Huang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China
| | - Jianing Liu
- School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Mingjun Wang
- Department of Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zijuan Qi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Shandong First Medical University & Shandong Academy of Medical Sciences, Ji'nan 250014, Shandong, China
| | - Li'e Zhang
- School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Ziang Huang
- Department of Mathematics, University of California at Davis, CA 95616, USA
| | - Yuanliang Yan
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China
| | - Ming Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100085, China.
| | - Yunfeng Zou
- School of Public Health, Guangxi Medical University, Nanning 530021, China.
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Rahaman MH, Yang T, Zhang Z, Liu W, Chen Z, Mąkinia J, Zhai J. Molecular transformation of dissolved organic matter in manganese ore-mediated constructed wetlands for fresh leachate treatment. J Environ Manage 2024; 358:120834. [PMID: 38631170 DOI: 10.1016/j.jenvman.2024.120834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/04/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024]
Abstract
The organic matter (OM) and nitrogen in Fresh leachate (FL) from waste compression sites pose environmental and health risks. Even though the constructed wetland (CW) can efficiently remove these pollutants, the molecular-level transformations of dissolved OM (DOM) in FL remain uncertain. This study reports the molecular dynamics of DOM and nitrogen removal during FL treatment in CWs. Two lab-scale vertical-flow CW systems were employed: one using only sand as substrates (act as a control, CW-C) and the other employing an equal mixture of manganese ore powder and sand (experimental, CW-M). Over 488 days of operation, CW-M exhibited significantly higher removal rates for chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), and dissolved organic matter (represented by dissolved organic carbon, DOC) at 98.2 ± 2.5%, 99.2 ± 1.4%, and 97.9 ± 1.9%, respectively, in contrast to CW-C (92.8 ± 6.8%, 77.1 ± 28.1%, and 74.7 ± 9.5%). The three-dimensional fluorescence excitation-emission matrix (3D-EEM) and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) analyses unveiled that the influent DOM was predominantly composed of readily biodegradable protein-like substances with high carbon content and low unsaturation. Throughout treatment, it led to the degradation of low O/C and high H/C compounds, resulting in the formation of DOM with higher unsaturation and aromaticity, resembling humic-like substances. CW-M showcased a distinct DOM composition, characterized by lower carbon content yet higher unsaturation and aromaticity than CW-C. The study also identified the presence of Gammaproteobacteria, reported as Mn-oxidizing bacteria with significantly higher abundance in the upper and middle layers of CW-M, facilitating manganese cycling and improving DOM removal. Key pathways contributing to DOM removal encompassed adsorption, catalytic oxidation by manganese oxides, and microbial degradation. This study offers novel insights into DOM transformation and removal from FL during CW treatment, which will facilitate better design and enhanced performance.
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Affiliation(s)
- Md Hasibur Rahaman
- Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu, 213300, China
| | - Tong Yang
- Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Chongqing University, Chongqing, 400045, China
| | - Zhongyi Zhang
- Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Chongqing University, Chongqing, 400045, China
| | - Wenbo Liu
- Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu, 213300, China
| | - Zhongbing Chen
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500, Praha, Suchdol, Czech Republic
| | - Jacek Mąkinia
- Department of Sanitary Engineering, Gdansk ' University of Technology, 80-233, Gdansk, Poland
| | - Jun Zhai
- Institute for Smart City of Chongqing University in Liyang, Chongqing University, Jiangsu, 213300, China; Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Chongqing University, Chongqing, 400045, China.
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10
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Gulyaeva ES, Buhaibeh R, Boundor M, Azouzi K, Willot J, Bastin S, Duhayon C, Lugan N, Filippov OA, Sortais JB, Valyaev DA, Canac Y. Impact of the Methylene Bridge Substitution in Chelating NHC-Phosphine Mn(I) Catalyst for Ketone Hydrogenation. Chemistry 2024; 30:e202304201. [PMID: 38314964 DOI: 10.1002/chem.202304201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
Systematic modification of the chelating NHC-phosphine ligand (NHC = N-heterocyclic carbene) in highly efficient ketone hydrogenation Mn(I) catalyst fac-[(Ph2PCH2NHC)Mn(CO)3Br] has been performed and the catalytic activity of the resulting complexes was evaluated using acetophenone as a benchmark substrate. While the variation of phosphine and NHC moieties led to inferior results than for a parent system, the incorporation of a phenyl substituent into the ligand methylene bridge improved catalytic performance by ca. 3 times providing maximal TON values in the range of 15000-20000. Mechanistic investigation combining experimental and computational studies allowed to rationalize this beneficial effect as an enhanced stabilization of reaction intermediates including anionic hydride species fac-[(Ph2PC(Ph)NHC)Mn(CO)3H]- playing a crucial role in the hydrogenation process. These results highlight the interest of such carbon bridge substitution strategy being rarely employed in the design of chemically non-innocent ligands.
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Affiliation(s)
- Ekaterina S Gulyaeva
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences, 28/1 Vavilov str., GSP-1, B-334, Moscow, 119334, Russia
| | - Ruqaya Buhaibeh
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Mohamed Boundor
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Karim Azouzi
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Jérémy Willot
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Stéphanie Bastin
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Carine Duhayon
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Oleg A Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences, 28/1 Vavilov str., GSP-1, B-334, Moscow, 119334, Russia
| | - Jean-Baptiste Sortais
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
- Institut Universitaire de France, 1 rue Descartes, 75231, Paris Cedex 5, France
| | - Dmitry A Valyaev
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
| | - Yves Canac
- LCC-CNRS, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France
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11
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Kanwal F, Riaz A, Ali S, Zhang G. NRAMPs and manganese: Magic keys to reduce cadmium toxicity and accumulation in plants. Sci Total Environ 2024; 921:171005. [PMID: 38378068 DOI: 10.1016/j.scitotenv.2024.171005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Cadmium (Cd), a toxic heavy metal, poses significant threats to both crop production and human health worldwide. Manganese (Mn), an essential micronutrient, plays a crucial role in plant growth and development. NRAMPs (Natural Resistance-Associated Macrophage Proteins) function as common transporters for both Cd and Mn. Deep understanding of the regulatory mechanisms governing NRAMP-mediated Cd and Mn transport is imperative for developing the crop varieties with high tolerance and low accumulation of Cd. This review reported the advance in studies on the fundamental properties and classification of NRAMPs in plants, and structural characteristics, expression patterns, and diverse functions of NRAMP genes across different plant species. We highlighted the pivotal role of NRAMPs in Cd/Mn uptake and transport in plants as a common transporter. Finally, we also comprehensively discussed over the strategies for reducing Cd uptake and accumulation in plants through using antagonism of Mn over Cd and altering the expression of NRAMP genes.
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Affiliation(s)
- Farah Kanwal
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310029, PR China
| | - Asad Riaz
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Saint Lucia, Brisbane 4072, Australia; Centre of Excellence for Plant Success in Nature and Agriculture, Saint Lucia, Brisbane 4072, Australia
| | - Shafaqat Ali
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Guoping Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Zijingang Campus, Hangzhou 310029, PR China; Zhongyuan Institute, Zhejiang University, Zhengzhou 450000, PR China.
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12
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Bergmann U. Stimulated X-ray emission spectroscopy. Photosynth Res 2024:10.1007/s11120-024-01080-y. [PMID: 38619702 DOI: 10.1007/s11120-024-01080-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/24/2024] [Indexed: 04/16/2024]
Abstract
We describe an emerging hard X-ray spectroscopy technique, stimulated X-ray emission spectroscopy (S-XES). S-XES has the potential to characterize the electronic structure of 3d transition metal complexes with spectral information currently not reachable and might lead to the development of new ultrafast X-ray sources with properties beyond the state of the art. S-XES has become possible with the emergence of X-ray free-electron lasers (XFELs) that provide intense femtosecond X-ray pulses that can be employed to generate a population inversion of core-hole excited states resulting in stimulated X-ray emission. We describe the instrumentation, the various types of S-XES, the potential applications, the experimental challenges, and the feasibility of applying S-XES to characterize dilute systems, including the Mn4Ca cluster in the oxygen evolving complex of photosystem II.
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Affiliation(s)
- Uwe Bergmann
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA.
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13
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Gao X, Li W, Sun X, Hao Y, Sun M, Yang Y, Wu G, Zhou Y. The important role of nitrate in iron and manganese dissolution and sulfate formation in fine particles at a coastal site in Northern China. Sci Total Environ 2024; 921:170318. [PMID: 38280608 DOI: 10.1016/j.scitotenv.2024.170318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/29/2024]
Abstract
Bioavailable transition trace elements, such as soluble iron (Fes) and soluble manganese (Mns) in aerosols, play a crucial role in atmospheric sulfate formation and marine ecosystems. In this study conducted during the spring of 2017 in Qingdao, a coastal city in Northern China, we applied a combined approach of multiple linear regression (MLR) incorporating the results of positive matrix factorization (PMF) to estimate the solubility of Fe and Mn from various sources. PMF analysis showed that dust was the largest contributor to total Fe (FeT) (45.5 %), followed by non-ferrous smelting (20.3 %) and secondary formation processes (17.8 %). However, secondary formation processes (33.2 %), vehicle exhaust (19.3 %) and aqueous-phase processes (19.0 %) were found to be the primary contributors to Fes. For total Mn (MnT) and Mns, dust (21.2 % ∼ 35.0 %), secondary formation processes (20.3 % ∼ 25.6 %) and industry (12.6 % ∼ 16.3 %) were identified as the dominant contributors. The solubilities of Fe and Mn varied significantly depending on their sources. Interestingly, nitrate played a more pronounced role than sulfate in facilitating the dissolution of Fe and Mn during the acid processing due to the high molar ratio of NO3-/2SO42- (1.72 ± 0.54) under the average RH of 56 % ± 15 %. This phenomenon suggested that the acid processing was primarily triggered by nitrate formation due to the low deliquescence relative humidity (DRH) of nitrate. Additionally, we discovered that the catalytic oxidation of SO2 in aerosol water was primarily driven by Fe rather than Mn, serving as a more significant pathway for sulfate formation within a pH range of 2.0 to 4.4. These findings provide valuable insights into the impact of acidification on the dissolution of Fe and Mn under conditions of moderate RH in the real ambient atmosphere with the increasing of NO3-/2SO42- molar ratio.
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Affiliation(s)
- Xiaomei Gao
- School of Water Conservancy and Environment, University of Jinan, Jinan, Shandong, China
| | - Wenshuai Li
- Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, Shandong, China
| | - Xiaoyan Sun
- Jinan Ecological and Environmental Monitoring Center, Jinan, Shandong, China
| | - Yu Hao
- North China Sea Data and Information Service, State Oceanic Administration, Qingdao, Shandong, China.
| | - Mingge Sun
- Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, Shandong, China
| | - Yiyan Yang
- Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, Shandong, China
| | - Guanru Wu
- Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, Shandong, China
| | - Yang Zhou
- Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, Shandong, China.
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14
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Lin Z, Liu L, Lian E, Zhao W, Jiang X. Regeneration of sedimentary manganese in coastal sediments deciphered by 224Ra/ 228Th disequilibria. Sci Total Environ 2024; 928:172493. [PMID: 38621533 DOI: 10.1016/j.scitotenv.2024.172493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
Manganese (Mn) is a vital micronutrient and participates in multiple biochemical reactions and enzyme catalytic activities. Its cycling is tightly connected with iron (Fe) and nitrogen (N). Although coastal sediments are recognized as an important source of dissolved Mn to marine waters, this contribution remains inadequately quantified. In the summer of 2019 and 2020, we investigated benthic fluxes of dissolved Mn, Fe and ammonia (NH4+) in the Changjiang Estuary and East China Sea shelf using the 224Ra/228Th disequilibrium approach. Our results showed that the availability of reactive Mn oxides (MnD) played a crucial role in sedimentary Mn regeneration, as revealed by the positive correlation (r = 0.75, P < 0.05) between Mn fluxes and MnD contents. In addition, the positive correlation (r = 0.80, P < 0.01) between the decomposition rates of sedimentary organic matter (NH4+ flux) and Mn fluxes suggested that the reduction of MnD was mainly driven by the organic carbon oxidation. Furthermore, NH4+ and Mn fluxes exhibited an exponential increase against the product of dissolved oxygen concentration (DO) and the amplification factor of sediment surface area (ξ). In this context, ξ represents the rate of bottom water DO pumped into the sediment via physical reworking and bio-irrigation. In contrast to the most efficient Fe released from sediment overlain by hypoxic waters (DO <62.5 μM), the maximum Mn flux (63.5 ± 9.4 mmol m-2 d-1) was observed at sediment with oxygenated bottom waters (DO = 158 μM). This implies that the regeneration of Mn was associated with a more permissive redox state compared to that of Fe. We further demonstrated that Mn flux was 1-2 orders of magnitude higher than those estimated through traditional methods. Therefore, coastal sediments may contribute more Mn to ocean waters than previously thought. The precise estimation of Mn release from coastal sediments holds critical significance for research on the global Mn budget.
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Affiliation(s)
- Zhongliang Lin
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
| | - Li Liu
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Ergang Lian
- Research Center for Monitoring and Environmental Sciences, Taihu Basin & East China Sea Ecological Environment Supervision and Administration Authority, Ministry of Ecology and Environment, Shanghai 200120, China; State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
| | - Weiqiang Zhao
- Fourth Institute of Oceanography, Ministry of Natural Resources, Beihai 536015, China
| | - Xinyu Jiang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
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15
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Mondal A, Pal D, Phukan HJ, Roy M, Kumar S, Purkayastha S, Guha AK, Srimani D. Manganese Complex Catalyzed Sequential Multi-component Reaction: Enroute to a Quinoline-Derived Azafluorenes. ChemSusChem 2024; 17:e202301138. [PMID: 38096176 DOI: 10.1002/cssc.202301138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/06/2023] [Indexed: 01/09/2024]
Abstract
The development of innovative synthetic strategies for constructing complex molecular structures is the heart of organic chemistry. This significance of novel reactions or reaction sequences would further enhance if they permitted the synthesis of new classes of structural motifs, which have not been previously created. The research on the synthesis of heterocyclic compounds is one of the most active topics in organic chemistry due to the widespread application of N-heterocycles in life and material science. The development of a new catalytic process that employs first-row transition metals to produce a range of heterocycles from renewable raw materials is considered highly sustainable approach. This would be more advantageous if done in an eco-friendly and atom-efficient manner. Herein we introduce, the synthesis of various new quinoline based azafluorenes via sequential dehydrogenative multicomponent reaction (MCR) followed by C(sp3)-H hydroxylation and annulation. Our newly developed, Mn-complexes have the ability to direct the reaction in order to achieve a high amount of desired functionalized heterocycles while minimizing the possibility of multiple side reactions. We also performed a series of control experiments, hydride trapping experiments, reaction kinetics, catalytic intermediate and DFT studies to comprehend the detailed reaction route and the catalyst's function in the MCR sequence.
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Affiliation(s)
- Avijit Mondal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Debjyoti Pal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Hirak Jyoti Phukan
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Mithu Roy
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Saurabh Kumar
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | | | - Ankur Kanti Guha
- Advanced Computational Chemistry Centre, Cotton University, Guwahati, 781001, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
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16
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Gandhi D, Bhandari S, Maity S, Mahapatra SK, Rajasekaran S. Activation of ERK/NF-kB Pathways Contributes to the Inflammatory Response in Epithelial Cells and Macrophages Following Manganese Exposure. Biol Trace Elem Res 2024:10.1007/s12011-024-04154-z. [PMID: 38580871 DOI: 10.1007/s12011-024-04154-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/19/2024] [Indexed: 04/07/2024]
Abstract
Different types of metals, including manganese (Mn), are constantly encountered in various environmental matrices due to natural and anthropogenic activities. They induce a sustained inflammatory response in various organs, which is considered to be an important priming event in the pathogenesis of several diseases. Mn-induced neuroinflammation and subsequent neurodegeneration are well recognized. However, emerging data suggest that occupationally and environmentally relevant levels may affect various organs, including the lungs. Therefore, the present study was carried out to investigate the effects of Mn (as Mn2+) exposure on the inflammatory response in human normal bronchial (BEAS-2B) and adenocarcinoma alveolar basal (A549) epithelial cells, as well as in murine macrophages (J774). Mn2+ exposure significantly induced mRNA and protein expression of various pro-inflammatory mediators (cytokines and chemokines) in all cells compared to corresponding vehicle controls. Furthermore, Mn2+ treatment also led to increased phosphorylation of extracellular-signal-regulated kinase (ERK)1/2 and nuclear factor-kappa B (NF-kB) p65 in both epithelial cells and macrophages. As expected, cells treated with inhibitors of ERK1/2 (PD98059) and NF-kB p65 (IMD0354) effectively mitigated the expression of various pro-inflammatory mediators induced by Mn2+, suggesting that ERK/NF-kB pathways have a critical role in the Mn2+-induced inflammatory response. Further, in vivo studies are required to confirm these in vitro findings to support clinical translation.
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Affiliation(s)
- Deepa Gandhi
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Sneha Bhandari
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Sangita Maity
- Biodiversity and Environmental Studies Research Centre, Department of Paramedical and Allied Health Sciences, Midnapore City College, Midnapore 721129, West Bengal, India
| | - Santanu Kar Mahapatra
- Biodiversity and Environmental Studies Research Centre, Department of Paramedical and Allied Health Sciences, Midnapore City College, Midnapore 721129, West Bengal, India
| | - Subbiah Rajasekaran
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India.
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17
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Gonzalez-Cuyar LF, Nelson G, Nielsen SS, Dlamini WW, Keyser-Gibson A, Keene CD, Paulsen M, Criswell SR, Senini N, Sheppard L, Samy S, Simpson CD, Baker MG, Racette BA. Olfactory tract/bulb metal concentration in Manganese-exposed mineworkers. Neurotoxicology 2024; 102:96-105. [PMID: 38582332 DOI: 10.1016/j.neuro.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 03/06/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Manganese (Mn) is an essential micronutrient as well as a well-established neurotoxicant. Occupational and environmental exposures may bypass homeostatic regulation and lead to increased systemic Mn levels. Translocation of ultrafine ambient airborne particles via nasal neuronal pathway to olfactory bulb and tract may be an important pathway by which Mn enters the central nervous system. OBJECTIVE To measure olfactory tract/bulb tissue metal concentrations in Mn-exposed and non-exposed mineworkers. METHODS Using inductively coupled plasma-mass spectrometry (ICP-MS), we measured and compared tissue metal concentrations in unilateral olfactory tracts/bulbs of 24 Mn-exposed and 17 non-exposed South African mineworkers. We used linear regression to investigate the association between cumulative Mn exposures and olfactory tract/bulb Mn concentration. RESULTS The difference in mean olfactory tract/bulb Mn concentrations between Mn-exposed and non-Mn exposed mineworkers was 0.16 µg/g (95% CI -0.11, 0.42); but decreased to 0.09 µg/g (95% CI 0.004, 0.18) after exclusion of one influential observation. Olfactory tract/bulb metal concentration and cumulative Mn exposure suggested there may be a positive association; for each mg Mn/m3-year there was a 0.05 µg/g (95% CI 0.01, 0.08) greater olfactory tract/bulb Mn concentration overall, but -0.003 (95% CI -0.02, 0.02) when excluding the three influential observations. Recency of Mn exposure was not associated with olfactory tract/bulb Mn concentration. CONCLUSIONS Our findings suggest that Mn-exposed mineworkers might have higher olfactory tract/bulb tissue Mn concentrations than non-Mn exposed mineworkers, and that concentrations might depend more on cumulative dose than recency of exposure.
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Affiliation(s)
- Luis F Gonzalez-Cuyar
- University of Washington, School of Medicine and Department of Laboratory Medicine and Pathology, Division of Neuropathology, 325 9th Ave, Seattle, WA 98104, USA.
| | - Gill Nelson
- School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St Andrews Rd, Parktown 2193, South Africa; Department of Neurology, Barrow Neurological Institute, 240 W Thomas Rd, Phoenix, AZ 85013, USA
| | - Susan Searles Nielsen
- Department of Neurology, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Wendy W Dlamini
- Department of Neurology, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA; Department of Epidemiology, School of Public Health, University of Washington, 3980 15th Ave NE, Seattle, WA 98195, USA
| | - Amelia Keyser-Gibson
- University of Washington, School of Medicine and Department of Laboratory Medicine and Pathology, Division of Neuropathology, 325 9th Ave, Seattle, WA 98104, USA
| | - C Dirk Keene
- University of Washington, School of Medicine and Department of Laboratory Medicine and Pathology, Division of Neuropathology, 325 9th Ave, Seattle, WA 98104, USA
| | - Michael Paulsen
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Susan R Criswell
- Department of Neurology, Barrow Neurological Institute, 240 W Thomas Rd, Phoenix, AZ 85013, USA; Department of Neurology, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
| | - Natalie Senini
- Department of Neurology, Barrow Neurological Institute, 240 W Thomas Rd, Phoenix, AZ 85013, USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA; Department of Biostatistics, School of Public Health, University of Washington, 3980 15th Ave NE, Seattle, WA 98195, USA
| | - Shar Samy
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Christopher D Simpson
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Marissa G Baker
- Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, 1959 NE Pacific St, Seattle, WA 98195, USA
| | - Brad A Racette
- School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St Andrews Rd, Parktown 2193, South Africa; Department of Neurology, Barrow Neurological Institute, 240 W Thomas Rd, Phoenix, AZ 85013, USA; Department of Neurology, Washington University School of Medicine, 660 S Euclid Ave, St. Louis, MO 63110, USA
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18
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Durin Z, Raynor A, Fenaille F, Cholet S, Vuillaumier-Barrot S, Alili JM, Poupon J, Oussedik ND, Tuchmann-Durand C, Attali J, Touzé R, Dupré T, Lebredonchel E, Akaffou MA, Legrand D, de Lonlay P, Bruneel A, Foulquier F. Efficacy of oral manganese and D-galactose therapy in a patient bearing a novel TMEM165 variant. Transl Res 2024; 266:57-67. [PMID: 38013006 DOI: 10.1016/j.trsl.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/06/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023]
Abstract
TMEM165-CDG has first been reported in 2012 and manganese supplementation was shown highly efficient in rescuing glycosylation in isogenic KO cells. The unreported homozygous missense c.928G>C; p.Ala310Pro variant leading to a functional but unstable protein was identified. This patient was diagnosed at 2 months and displays a predominant bone phenotype and combined defects in N-, O- and GAG glycosylation. We administered for the first time a combined D-Gal and Mn2+ therapy to the patient. This fully suppressed the N-; O- and GAG hypoglycosylation. There was also striking improvement in biochemical parameters and in gastrointestinal symptoms. This study offers exciting therapeutic perspectives for TMEM165-CDG.
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Affiliation(s)
- Zoé Durin
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Alexandre Raynor
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - François Fenaille
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, 91191 Gif sur Yvette, France
| | - Sophie Cholet
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), MetaboHUB, 91191 Gif sur Yvette, France
| | - Sandrine Vuillaumier-Barrot
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France; Laboratoire de biologie médicale multisites Seqoia - FMG2025, 75014 Paris, France
| | - Jean-Meidi Alili
- Filière G2m, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France
| | - Joël Poupon
- Laboratoire de Toxicologie biologique Groupe hospitalier Saint Louis - Lariboisière - Fernand Widal, 75475, Paris, France
| | - Nouzha Djebrani Oussedik
- Laboratoire de Toxicologie biologique Groupe hospitalier Saint Louis - Lariboisière - Fernand Widal, 75475, Paris, France
| | - Caroline Tuchmann-Durand
- Institut Imagine, Biothérapie, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, 75015 Paris, France
| | - Jennifer Attali
- Service de Radiologie Pédiatrique, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine,75015 Paris, France
| | - Romain Touzé
- Service d'Ophtalmologie Pédiatrique, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France
| | - Thierry Dupré
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Elodie Lebredonchel
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Marlyse Angah Akaffou
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France
| | - Dominique Legrand
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Pascale de Lonlay
- Filière G2m, Hôpital Universitaire Necker-Enfants-Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), 75015 Paris, France; Hôpital Universitaire Necker-Enfants-Malades, Institut Imagine, G2M, MetabERN, Université Paris Cité, 75015 Paris, France.
| | - Arnaud Bruneel
- AP-HP, Biochimie Métabolique et Cellulaire, Hôpital Bichat-Claude Bernard, 46 rue Henri Huchard, 75018 Paris, France; INSERM UMR1193, Faculté de Pharmacie, Université Paris-Saclay, bâtiment Henri Moissan, 92400 Orsay, France.
| | - François Foulquier
- Univ. Lille, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France.
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Baliova M, Jursky F. Manganese- and zinc-coordinated interaction of Schistosoma japonicum glutathione S-transferase with neurotransmitter transporters GlyT1 and GAT3 in vitro. Exp Parasitol 2024; 259:108721. [PMID: 38369179 DOI: 10.1016/j.exppara.2024.108721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
Glutathione S-transferases (GSTs) are a family of multifunctional isoenzymes involved in the neutralization of toxic compounds, drug resistance and several other cellular functions. The glutathione S-transferase enzyme of Schistosoma japonicum (SjGST-26) plays a role in human schistosomiasis and is also a frequently used fusion partner in mammalian and bacterial expression and pull-down systems. GSTs seem not to be naturally associated with metal ions. Exceptionally, in vitro, metal binding sites have been previously described in some schistosome GSTs; however, their possible physiological role is unclear. Molecules of several neurotransmitter transporters also contain a regulatory zinc binding site, which affects their transport cycle. Here we show that among several metals, manganese and zinc are able to induce a specific protein interaction of SjGST-26 with the glycine transporter GlyT1 and the GABA transporter GAT3 in vitro. The results suggest that metal-binding sites on SjGST-26 and neurotransmitter transporters might function in metal-coordinated interactions with other metalloproteins. Our results additionally indicate that the presence of metal ions in SjGST-26-based GST protein pull-down assays may lead to a false-positive interaction if the potential interacting target is the metalloprotein.
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Affiliation(s)
- Martina Baliova
- Laboratory of Neurobiology, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska Cesta 21, 845 51, Bratislava, Slovakia
| | - Frantisek Jursky
- Laboratory of Neurobiology, Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska Cesta 21, 845 51, Bratislava, Slovakia.
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20
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Fan RZ, Sportelli C, Lai Y, Salehe SS, Pinnell JR, Brown HJ, Richardson JR, Luo S, Tieu K. A partial Drp1 knockout improves autophagy flux independent of mitochondrial function. Mol Neurodegener 2024; 19:26. [PMID: 38504290 PMCID: PMC10953112 DOI: 10.1186/s13024-024-00708-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/07/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Dynamin-related protein 1 (Drp1) plays a critical role in mitochondrial dynamics. Partial inhibition of this protein is protective in experimental models of neurological disorders such as Parkinson's disease and Alzheimer's disease. The protective mechanism has been attributed primarily to improved mitochondrial function. However, the observations that Drp1 inhibition reduces protein aggregation in such neurological disorders suggest the involvement of autophagy. To investigate this potential novel protective mechanism of Drp1 inhibition, a model with impaired autophagy without mitochondrial involvement is needed. METHODS We characterized the effects of manganese (Mn), which causes parkinsonian-like symptoms in humans, on autophagy and mitochondria by performing dose-response studies in two cell culture models (stable autophagy HeLa reporter cells and N27 rat immortalized dopamine neuronal cells). Mitochondrial function was assessed using the Seahorse Flux Analyzer. Autophagy flux was monitored by quantifying the number of autophagosomes and autolysosomes, as well as the levels of other autophagy proteins. To strengthen the in vitro data, multiple mouse models (autophagy reporter mice and mutant Drp1+/- mice and their wild-type littermates) were orally treated with a low chronic Mn regimen that was previously reported to increase α-synuclein aggregation and transmission via exosomes. RNAseq, laser captured microdissection, immunofluorescence, immunoblotting, stereological cell counting, and behavioural studies were used. RESULTS IN VITRO: data demonstrate that at low non-toxic concentrations, Mn impaired autophagy flux but not mitochondrial function and morphology. In the mouse midbrain, RNAseq data further confirmed autophagy pathways were dysregulated but not mitochondrial related genes. Additionally, Mn selectively impaired autophagy in the nigral dopamine neurons but not the nearby nigral GABA neurons. In cells with a partial Drp1-knockdown and Drp1+/- mice, Mn induced autophagic impairment was significantly prevented. Consistent with these observations, Mn increased the levels of proteinase-K resistant α-synuclein and Drp1-knockdown protected against this pathology. CONCLUSIONS This study demonstrates that improved autophagy flux is a separate mechanism conferred by Drp1 inhibition independent of its role in mitochondrial fission. Given that impaired autophagy and mitochondrial dysfunction are two prominent features of neurodegenerative diseases, the combined protective mechanisms targeting these two pathways conferred by Drp1 inhibition make this protein an attractive therapeutic target.
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Affiliation(s)
- Rebecca Z Fan
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Carolina Sportelli
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Yanhao Lai
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Said S Salehe
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Jennifer R Pinnell
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Harry J Brown
- Department of Environmental Health Sciences, Florida International University, Miami, USA
- Biomolecular Sciences Institute, Florida International University, Miami, USA
| | - Jason R Richardson
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Shouqing Luo
- Peninsula Schools of Medicine and Dentistry, Plymouth University, Plymouth, UK
| | - Kim Tieu
- Department of Environmental Health Sciences, Florida International University, Miami, USA.
- Biomolecular Sciences Institute, Florida International University, Miami, USA.
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21
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Gandhi D, Bhandari S, Mishra S, Rudrashetti AP, Vetrivel U, Thimmulappa RK, Rajasekaran S. Forced expression of microRNA-221-3p exerts protective effects against manganese-induced cytotoxicity in human lung epithelial cells. Toxicol Appl Pharmacol 2024; 485:116904. [PMID: 38503349 DOI: 10.1016/j.taap.2024.116904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
Manganese (Mn)-induced pulmonary toxicity and the underlying molecular mechanisms remain largely enigmatic. Further, in recent years, microRNAs (miRNAs) have emerged as regulators of several pollutants-mediated toxicity. In this context, our study aimed at elucidating whether miRNAs are involved in manganese (II) chloride (MnCl2) (Mn2+)-induced cytotoxicity in lung epithelial cells. Growth inhibition of Mn2+ towards normal human bronchial epithelial (BEAS-2B) and adenocarcinomic human alveolar basal epithelial (A549) cells was analyzed by MTT assay following 24 or 48 h treatment. Reactive oxygen species (ROS) generation, mitochondrial membrane potential (ΔΨm), cell cycle arrest, and apoptosis were evaluated by flow cytometry. RT-qPCR and Western blot were performed to analyze the expression of cyclins, anti-oxidant genes, and miRNAs. We used small RNA sequencing to investigate Mn2+-induced changes in miRNA expression patterns. In both cell lines, Mn2+ treatment inhibited growth in a dose-dependent manner. Further, compared with vehicle-treated cells, Mn2+ (250 μM) treatment induced ROS generation, cell cycle arrest, apoptosis, and decreased ΔΨm as well as altered the expression of cyclins and anti-oxidant genes. Sequencing data revealed that totally 296 miRNAs were differentially expressed in Mn2+-treated cells. Among them, miR-221-3p was one of the topmost down-regulated miRNAs in Mn2+-treated cells. We further confirmed this association in A549 cells. In addition, transient transfection was performed to study gain-of-function experiments. Forced expression of miR-221-3p significantly improved cell viability and reduced Mn2+-induced cell cycle arrest and apoptosis in BEAS-2B cells. In conclusion, miR-221-3p may be the most likely target that accounts for the cytotoxicity of Mn2+-exposed lung epithelial cells.
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Affiliation(s)
- Deepa Gandhi
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Sneha Bhandari
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Sehal Mishra
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | | | - Umashankar Vetrivel
- Department of Virology and Biotechnology, ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | - Rajesh K Thimmulappa
- Centre for Excellence in Molecular Biology and Regenerative Medicine, Department of Biochemistry, JSS Medical College, JSS Academy of Higher Education, Mysuru, India
| | - Subbiah Rajasekaran
- Division of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
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22
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Liu Y, Zeng JM, Zhao H, Ao CY, Ao LH, Ban JQ, Li J. Mechanism of KAT2A regulation of H3K36ac in manganese-induced oxidative damage to mitochondria in the nervous system and intervention by curcumin. Ecotoxicol Environ Saf 2024; 273:116155. [PMID: 38417317 DOI: 10.1016/j.ecoenv.2024.116155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/01/2024]
Abstract
Excessive exposure to manganese in the environment or workplace is strongly linked to neurodegeneration and cognitive impairment, but the precise pathogenic mechanism and preventive measures are still not fully understood. The study aimed to investigate manganese -induced oxidative damage in the nervous system from an epigenetic perspective, focusing on the H3K36ac-dependent antioxidant pathway. Additionally, it sought to examine the potential of curcumin in preventing manganese-induced oxidative damage. Histopathology and transmission electron microscopy revealed that apoptosis and necrosis of neurons and mitochondrial ultrastructure damage were observed in the striatum of manganese-exposed rats. manganese suppressed the expression of mitochondrial antioxidant genes, leading to oxidative damage in the rats' striatum and SH-SY5Y cells. With higher doses of manganese, levels of histone acetyltransferase lysine acetyltransferase 2 A (KAT2A) expression and H3K36ac level decreased. ChIP-qPCR confirmed that H3K36ac enrichment in the promoter regions of antioxidant genes SOD2, PRDX3, and TXN2 was reduced in SH-SY5Y cells after manganese exposure, leading to decreased expression of these genes. Overexpression of KAT2A confirms that it attenuates manganese-induced mitochondrial oxidative damage by regulating H3K36ac levels, which in turn controls the expression of antioxidant genes SOD2, PRDX3, and TXN2 in the manganese-exposed cell model. Furthermore, curcumin might control H3K36ac levels by influencing KAT2A expression, boosting antioxidant genes expression, and reducing manganese-induced mitochondrial oxidative damage. In conclusion, the regulation of mitochondrial oxidative stress by histone acetylation may be an important mechanism of manganese-induced neurotoxicity. This regulation could be achieved by reducing the level of H3K36ac near the promoter region of mitochondrial-associated antioxidant genes via KAT2A. Curcumin mitigates manganese-induced oxidative damage in mitochondria and plays a crucial protective role in manganese-induced oxidative injury in the nervous system.
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Affiliation(s)
- Yan Liu
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China
| | - Jia-Min Zeng
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China
| | - Hua Zhao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China
| | - Chun-Yan Ao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China
| | - Li-Hong Ao
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China
| | - Jia-Qi Ban
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China..
| | - Jun Li
- School of Public Heath, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang ,Guizhou 561113, China..
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23
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Zarandi AF, Shirkhanloo H, Rakhtshah J. An immobilization of 2-(Aminomethyl) thiazole on multi-walled carbon nanotubes used for rapid extraction of manganese ions in hepatic patients. J Pharm Biomed Anal 2024; 240:115941. [PMID: 38211517 DOI: 10.1016/j.jpba.2023.115941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 01/13/2024]
Abstract
A new method based on the immobilization of 2-(Aminomethyl) thiazole on the multi-walled carbon nanotubes (AMTZ@MWCNTs) was used to extract manganese (Mn) in the human blood, serum, and urine samples. First, 20 mg of AMTZ@MWCNTs, 0.2 mL of acetone, and 0.1 g of ionic liquid (IL) were completely mixed and injected into 2.0 mL human samples by a microscale syringe at pH 5.5. After shaking and centrifuging, the Mn ions were extracted and separated through the ultrasound-assisted- ionic liquid-dispersive micro solid-phase extraction (UAS-IL-D-μ-SPE) before being determined by the graphite furnace atomic absorption spectrometry (GF-AAS). According to the results, manganese in the blood of hepatic patients had higher concentrations than healthy people (Aged 25-60, 50 N). The Mn adsorption capacities for the AMTZ@MWCNTs and MWCNTs adsorbents were achieved at 192.5 mg/g and 26.3 mg/g, respectively. In the high enrichment factor (HEF), the limit of detection (LOD), linear range (LR), and mean relative standard division (RSD%) were calculated at 15 ng/L, 0.05-3.8 μg/L, and 2.34, respectively (n = 10). The methodology was validated using certified reference material (CRM) and spiking standard solutions to human samples.
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Affiliation(s)
- Ali Faghihi Zarandi
- Environmental Health Engineering Research Center, Kerman university of Medical Science, Kerman, Iran; Department of Occupational Hygiene Engineering, Faculty of Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Shirkhanloo
- Research Institute of Petroleum Industry (RIPI), West Entrance Blvd., Olympic Village, Tehran, Iran.
| | - Jamshid Rakhtshah
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
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24
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Deng X, Guo Y, Jin X, Si H, Dai K, Deng M, He J, Hao C, Yao W. Manganese accumulation in red blood cells as a biomarker of manganese exposure and neurotoxicity. Neurotoxicology 2024; 102:1-11. [PMID: 38461971 DOI: 10.1016/j.neuro.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 03/12/2024]
Abstract
Although overexposure to manganese (Mn) is known to cause neurotoxic damage, effective exposure markers for assessing Mn loading in Mn-exposed workers are lacking. Here, we construct a Mn-exposed rat model to perform correlation analysis between Mn-induced neurological damage and Mn levels in various biological samples. We combine this analysis with epidemiological investigation to assess whether Mn concentrations in red blood cells (MnRBCs) and urine (MnU) can be used as valid exposure markers. The results show that Mn exposure resulted in neurotoxic damage in rats and that MnRBCs correlated well with neurological damage, showing potential as a novel Mn exposure biomarker. These findings provide a basis for health monitoring of Mn-exposed workers and the development of more appropriate biological exposure limits.
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Affiliation(s)
- Xuedan Deng
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Yonghua Guo
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Xiaofei Jin
- Department of Ultrasound, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Huifang Si
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Kai Dai
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Meng Deng
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Jing He
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Changfu Hao
- Department of Child and Adolescence Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China.
| | - Wu Yao
- Department of Occupational Health and Environmental Health, College of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, China.
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25
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Ma Z, Liu K, Zhang RF, Xie ZX, Liu W, Xu B. Manganese disrupts the maturation and degradation of axonal autophagosome leading to hippocampal synaptic toxicity in mice via the activation of LRRK2 on phosphorylation of Rab10. Sci Total Environ 2024; 915:170021. [PMID: 38224893 DOI: 10.1016/j.scitotenv.2024.170021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/03/2024] [Accepted: 01/07/2024] [Indexed: 01/17/2024]
Abstract
Manganese (Mn) overexposure induces hippocampal synaptotoxicity by the accumulation of dysfunctional synaptic vesicles (SVs). Leucine-rich repeat kinase 2 (LRRK2) kinase activity is involved in regulating axonal transport (autophagosomal maturation) and lysosomal function. Nevertheless, it remains unclear whether Mn-induced synaptotoxicity is associated with the LRRK2-mediated disruption of autophagosomal maturation in axonal transport and the impairment of lysosomes in hippocampal neurons. Here, we established models of manganism in C57BL/6 mice and hippocampal neuronal HT22 cells to verify the role of LRRK2-mediated Rab10 phosphorylation in the Mn-induced dysfunction of autophagy- lysosomal fusion. Our results proved that Mn-induced the disorder of axonal transport and that lysosome impairments were associated with the increased recruitment of phospho-Rab10 at the axon and lysosomes. Next, we established Lrrk2-KD and LRRK2 kinase- specific inhibitor (GNE-0877, GNE) pre-treated HT22 cells to inhibit Lrrk2 gene expression and kinase activity, respectively. In Mn-treated Lrrk2-KD or GNE-pretreated normal neurons, our results indicated that lysosomal pH and integrity and autophagic flow were restored, indicating by decreased levels of phospho-Rab10 on lysosomes and JNK-interacting proteins (JIP4). In addition, GNE pretreatment could provide protection against Mn-induced synaptotoxicity in vivo, which was evidenced by the partial recovery in synaptic plasticity and synaptic damage. Thus, the Mn-induced abnormal activation of LRRK2 affected lysosomes and the recruitment of phospho-Rab10 by JIP4, which disrupted autophagosomal maturation in proximal axons and resulted in the hippocampal synaptic toxicity of mice.
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Affiliation(s)
- Zhuo Ma
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, 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, China
| | - Rui-Feng Zhang
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, China
| | - Zi-Xin Xie
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, China
| | - Wei Liu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, China
| | - Bin Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention, China Medical University, Ministry of Education, Shenyang, Liaoning 110122, China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province 110122, China.
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26
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Guo X, Xu J, Tian Y, Ouyang F, Yu X, Liu J, Yan C, Zhang J. Interaction of prenatal maternal selenium and manganese levels on child neurodevelopmental trajectories-the Shanghai birth cohort study. Sci Total Environ 2024; 915:170095. [PMID: 38224892 DOI: 10.1016/j.scitotenv.2024.170095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/17/2024]
Abstract
OBJECTIVE The fetal brain is particularly plastic, and may be concurrently affected by chemical exposure and malnutritional factors. Selenium is essential for the developing brain, and excess manganese exposure may exert neurotoxic effects. However, few epidemiological studies have evaluated the interaction of manganese and selenium assessed in different prenatal stages on postnatal neurodevelopmental trajectories. METHODS This study contained 1024 mother-child pairs in the Shanghai-birth-cohort study from 2013 to 2016 recruited since early/before pregnancy with complete data on manganese and selenium levels in different prenatal stages and infant neurodevelopmental trajectories. Whole blood manganese and selenium in early pregnancy and around birth were measured by inductively-coupled-plasma-mass-spectrometry (ICP-MS), children's cognitive development was evaluated at 6, 12, and 24 months of age using Age & Stage-Questionnaire (ASQ)-3 and Bayley-III. Multiple linear regression was used to investigate the interaction of prenatal selenium and manganese on neurodevelopmental trajectories. RESULTS The prenatal manganese and selenium levels were 1.82 ± 0.98 μg/dL and 13.53 ± 2.70 μg/dL for maternal blood in early pregnancy, and 5.06 ± 1.67 μg/dL and 11.81 ± 3.35 μg/dL for umbilical cord blood, respectively. Higher prenatal Se levels were associated with better neurocognitive performances or the consistently-high-level trajectory (P < 0.05), with more significant associations observed in early pregnancy than around birth. However, such positive relationships became non-significant or even adverse in high (vs. low) manganese status, and the effect differences between low and high manganese were more significant in early pregnancy. CONCLUSIONS Prenatal Selenium was positively associated with child neurodevelopment, but prenatal high manganese may mitigate such favorable effects. The effects were mainly observed in earlier prenatal stage.
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Affiliation(s)
- Xiangrong Guo
- The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai 200030, China
| | - Jian Xu
- The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai 200030, China.
| | - Ying Tian
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China; Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Fengxiu Ouyang
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Xiaodan Yu
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China; Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Junxia Liu
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Chonghuai Yan
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Jun Zhang
- MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
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27
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Wei Z, Ke Z, Wang Y, Liu Q. Manganese-catalyzed Efficient Synthesis of N-heterocycles and Aminoketones Using Glycerol as a C3 Synthon. Chemistry 2024; 30:e202303481. [PMID: 38239082 DOI: 10.1002/chem.202303481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Indexed: 03/10/2024]
Abstract
Glycerol is one of the important biomass-derived feedstocks and the high-value utilizations of glycerol have attracted much attentions in recent years. Herein, we report a manganese catalyzed dehydrogenative coupling of glycerol with amines for the synthesis of substituted 2-methylquinoxalines, 2-ethylbenzimidazoles, and α-aminoketones without any external oxidant. In these reactions, NHC-based pincer manganese complex featuring a pyridine backbone displayed high catalytic activity and selectivity, in which hydrogen and water were produced as the only by-products using glycerol as a C3 synthon.
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Affiliation(s)
- Zeyuan Wei
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yujie Wang
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Qiang Liu
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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28
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Liang L, Ze M, Yang J, Xu Q, Du C, Hu X, Dong M, Zou L, Qi T. Physiological and transcriptomic response reveals new insight into manganese tolerance of Celosia argentea Linn. J Hazard Mater 2024; 465:133079. [PMID: 38029593 DOI: 10.1016/j.jhazmat.2023.133079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/19/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
Celosia argentea is a manganese (Mn) hyperaccumulator with high ornamental value and strong stress resistance. It is important to understand the molecular mechanism of tolerance to heavy metals of hyperaccumulators to improve the efficiency of phytoremediation. In this study, the effects of different Mn concentrations (0, 0.8, 3, and 10 mM) on physiological characteristics and molecular changes were determined. Low concentrations of Mn increased the growth of C. argentea, while high concentrations of Mn suppressed its growth, A concentration up to 3 mM did not affect the growth of C. argentea, and the highest transfer factor (TF) was 6.16. Oxidative damage of different Mn level treatments in C. argentea was verified through relative water content, electrolyte leakage, MDA content, H2O2 content and superoxide contents. With an increase in Mn concentration, the contents of chlorophyll a, chlorophyll b, and carotenoids decreased. Our results indicated that low-concentration manganese treatment can reduce the reactive oxygen burst and MDA, soluble sugar and proline, making C. argentea have strong abiotic stress tolerance. The molecular mechanism of C. argentea after 10 mM Mn treatment was analysed through transcriptome analysis, and differentially expressed genes (DEGs) in these pathways were further verified by qRTPCR. Plantpathogen interactions, plant hormone signal transduction, the MAPK signalling pathway and the phenylpropanoid biosynthesis pathway were important in the response to Mn stress, and the heavy metal-associated isoprenylated plant protein, metal transporter Nramp, and zinc transporter play key roles in the strong ability of C. argentea to tolerate heavy metals. These results suggest that C. argentea exhibits strong manganese tolerance and provide new insight into the molecular mechanisms of plant responses to heavy metal stress.
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Affiliation(s)
- Liyun Liang
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Mu Ze
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Jun Yang
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Qian Xu
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Cunmei Du
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Xiaohong Hu
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Ming Dong
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China
| | - Lijuan Zou
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China.
| | - Tuo Qi
- Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, China.
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29
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Monsivais H, Yeh CL, Edmondson A, Harold R, Snyder S, Wells EM, Schmidt-Wilcke T, Foti D, Zauber SE, Dydak U. Whole-brain mapping of increased manganese levels in welders and its association with exposure and motor function. Neuroimage 2024; 288:120523. [PMID: 38278427 DOI: 10.1016/j.neuroimage.2024.120523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/29/2023] [Accepted: 01/23/2024] [Indexed: 01/28/2024] Open
Abstract
Although manganese (Mn) is a trace metal essential for humans, chronic exposure to Mn can cause accumulation of this metal ion in the brain leading to an increased risk of neurological and neurobehavioral health effects. This is a concern for welders exposed to Mn through welding fumes. While brain Mn accumulation in occupational settings has mostly been reported in the basal ganglia, several imaging studies also revealed elevated Mn in other brain areas. Since Mn functions as a magnetic resonance imaging (MRI) T1 contrast agent, we developed a whole-brain MRI approach to map in vivo Mn deposition differences in the brains of non-exposed factory controls and exposed welders. This is a cross-sectional analysis of 23 non-exposed factory controls and 36 exposed full-time welders from the same truck manufacturer. We collected high-resolution 3D MRIs of brain anatomy and R1 relaxation maps to identify regional differences using voxel-based quantification (VBQ) and statistical parametric mapping. Furthermore, we investigated the associations between excess Mn deposition and neuropsychological and motor test performance. Our results indicate that: (1) Using whole-brain MRI relaxometry methods we can generate excess Mn deposition maps in vivo, (2) excess Mn accumulation due to occupational exposure occurs beyond the basal ganglia in cortical areas associated with motor and cognitive functions, (3) Mn likely diffuses along white matter tracts in the brain, and (4) Mn deposition in specific brain regions is associated with exposure (cerebellum and frontal cortex) and motor metrics (cerebellum and hippocampus).
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Affiliation(s)
| | - Chien-Lin Yeh
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Takeda Pharmaceutical Company Ltd, Cambridge, MA, USA
| | - Alex Edmondson
- Cincinnati Children's Hospital Medical Center, Imaging Research Center, Cincinnati, OH, USA; University of Cincinnati College of Medicine, Department of Environmental and Public Health Sciences, Cincinnati, OH USA
| | - Roslyn Harold
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA
| | - Sandy Snyder
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Department of Speech, Language and Hearing Sciences, Purdue University, West Lafayette, IN, USA
| | - Ellen M Wells
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Department of Public Health, Purdue University, West Lafayette, IN, USA
| | - Tobias Schmidt-Wilcke
- Department of Neurology, St. Mauritius Therapieklinik, Meerbusch, Germany; Institute of Clinical Neuroscience and Medical Psychology, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Dan Foti
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA
| | - S Elizabeth Zauber
- Department of Neurology, Indiana University School of Medicine, Indianapolis, USA
| | - Ulrike Dydak
- School of Health Sciences, Purdue University, West Lafayette, IN, USA; Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.
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30
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Zhang X, Wei M, Zhang Z, Zeng Y, Zou F, Zhang S, Wang Z, Chen F, Xiong H, Li Y, Zhou L, Li T, Zheng Q, Yu H, Zhang J, Gu Y, Zhao Q, Li S, Xia N. Risedronate-functionalized manganese-hydroxyapatite amorphous particles: A potent adjuvant for subunit vaccines and cancer immunotherapy. J Control Release 2024; 367:13-26. [PMID: 38244843 DOI: 10.1016/j.jconrel.2024.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
The cGAS-STING pathway and the Mevalonate Pathway are druggable targets for vaccine adjuvant discovery. Manganese (Mn) and bisphosphonates are known to exert adjuvant effects by targeting these two pathways, respectively. This study found the synergistic potential of the two pathways in enhancing immune response. Risedronate (Ris) significantly amplified the Mn adjuvant early antibody response by 166-fold and fortified its cellular immunity. However, direct combination of Mn2+ and Ris resulted in increased adjuvant toxicity (40% mouse mortality). By the combination of doping property of hydroxyapatite (HA) and its high affinity for Ris, we designed Ris-functionalized Mn-HA micro-nanoparticles as an organic-inorganic hybrid adjuvant, named MnHARis. MnHARis alleviated adjuvant toxicity (100% vs. 60% survival rate) and exhibited good long-term stability. When formulated with the varicella-zoster virus glycoprotein E (gE) antigen, MnHARis triggered a 274.3-fold increase in IgG titers and a 61.3-fold surge in neutralization titers while maintaining a better long-term humoral immunity compared to the aluminum adjuvant. Its efficacy spanned other antigens, including ovalbumin, HPV18 VLP, and SARS-CoV-2 spike protein. Notably, the cellular immunity elicited by the group of gE + MnHARis was comparable to the renowned Shingrix®. Moreover, intratumoral co-administration with an anti-trophoblast cell surface antigen 2 nanobody revealed synergistic antitumor capabilities. These findings underscore the potential of MnHARis as a potent adjuvant for augmenting vaccine immune responses and improving cancer immunotherapy outcomes.
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Affiliation(s)
- Xiuli Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Mingjing Wei
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Zhigang Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Yarong Zeng
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Feihong Zou
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Sibo Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Zhiping Wang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Fentian Chen
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Hualong Xiong
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Yufang Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Lizhi Zhou
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Tingting Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Qingbing Zheng
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Hai Yu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Jun Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Ying Gu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China
| | - Qinjian Zhao
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Shaowei Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China.
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, Department of Laboratory Medicine, School of Public Health, School of Life Sciences, Xiamen University, Xiamen 361102, China; National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Collaborative Innovation Center of Biologic Products, Xiamen University, Xiamen 361102, China.
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31
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Qin S, Wang R, Li J, Tang D, Shi Z. Quantitative Proteomics Reveals Manganese Alleviates Heat Stress of Broiler Myocardial Cells via Regulating Nucleic Acid Metabolism. Biol Trace Elem Res 2024; 202:1187-1202. [PMID: 37369963 DOI: 10.1007/s12011-023-03731-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Heat stress threatens severely cardiac function by caused myocardial injury in poultry. Our previous study has showed that manganese (Mn) has a beneficial effect on heat-stress resistance of broiler. Therefore, we tried to confirm the alleviation mechanism through proteomic analysis after heat stress exposure to primary broiler myocardial cells pretreated with Mn. The experiment was divided into four groups: CON group (37 °C, cells without any treatment), HS group (43 °C, cells treatment with heat stress for 4 h), HS+MnCl2 group (cells treated with 20 μM MnCl2 before heat stress), and HS+Mn-AA group (cells treated with 20 μM Mn compound amino acid complex before heat stress). Proteome analysis using DIA identified 300 differentially expressed proteins (DEPs) between CON group and HS group; 93 and 121 DEPs were identified in inorganic manganese treatment group and organic manganese treatment group, respectively; in addition, there were 53 DEPs identified between inorganic and organic manganese group. Gene Ontology (GO) analysis showed that DEPs were mainly involved in binding, catalytic activity, response to stimulus, and metabolic process. DEPs of manganese pretreatment involved in a variety of biological regulatory pathways, and significantly influenced protein processing and repair in endoplasmic reticulum, apoptosis, and DNA replication and repair. These all seem to imply that manganese may help to resist cell damage induced by heat stress by regulating key node proteins. These findings contribute to a better understanding of the effects of manganese on overall protein changes during heat-stress and the possible mechanisms, as well as how to better use manganese to protect heart function in high temperature.
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Affiliation(s)
- Shizhen Qin
- Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Rui Wang
- Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Jinlu Li
- Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Defu Tang
- Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China
| | - Zhaoguo Shi
- Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, 730070, People's Republic of China.
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32
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Howard SL, Beaudin SA, Strupp BJ, Smith DR. Maternal choline supplementation lessens the behavioral dysfunction produced by developmental manganese exposure in a rodent model of ADHD. Neurotoxicol Teratol 2024; 102:107337. [PMID: 38423398 DOI: 10.1016/j.ntt.2024.107337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Studies in children have reported associations between elevated manganese (Mn) exposure and ADHD-related symptoms of inattention, impulsivity/hyperactivity, and psychomotor impairment. Maternal choline supplementation (MCS) during pregnancy/lactation may hold promise as a protective strategy because it has been shown to lessen cognitive dysfunction caused by numerous early insults. Our objectives were to determine whether (1) developmental Mn exposure alters behavioral reactivity/emotion regulation, in addition to impairing learning, attention, impulse control, and sensorimotor function, and (2) MCS protects against these Mn-induced impairments. Pregnant Long-Evans rats were given standard diet, or a diet supplemented with additional choline throughout gestation and lactation (GD 3 - PND 21). Male offspring were exposed orally to 0 or 50 mg Mn/kg/day over PND 1-21. In adulthood, animals were tested in a series of learning, attention, impulse control, and sensorimotor tasks. Mn exposure caused lasting dysfunction in attention, reactivity to errors and reward omission, learning, and sensorimotor function, recapitulating the constellation of symptoms seen in ADHD children. MCS lessened Mn-induced attentional dysfunction and partially normalized reactivity to committing an error or not receiving an expected reward but provided no protection against Mn-induced learning or sensorimotor dysfunction. In the absence of Mn exposure, MCS produces lasting offspring benefits in learning, attention, and reactivity to errors. To conclude, developmental Mn exposure produces a constellation of deficits consistent with ADHD symptomology, and MCS offered some protection against the adverse Mn effects, adding to the evidence that maternal choline supplementation is neuroprotective for offspring and improves offspring cognitive functioning.
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Affiliation(s)
- Shanna L Howard
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Stephane A Beaudin
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Barbara J Strupp
- Division of Nutritional Sciences and Department of Psychology, Cornell University, Ithaca, NY, USA
| | - Donald R Smith
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA.
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Lee JY, Kim CI, Lee SH. Assessment of zinc, manganese, copper, and magnesium intake levels in Koreans using the Korean Total Diet Study. Food Sci Biotechnol 2024; 33:945-954. [PMID: 38371695 PMCID: PMC10866824 DOI: 10.1007/s10068-023-01394-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/09/2023] [Accepted: 07/13/2023] [Indexed: 02/20/2024] Open
Abstract
This study evaluated zinc, manganese, copper, and magnesium intake levels in Koreans using the Korean Total Diet Study, targeting 92-93% of the Korean diet. Representative foods were collected from 9 cities, resulting in 1344-1368 samples. Results showed adequate intake for most minerals, but high proportions of adults and adolescents didn't meet recommended levels. Infants had high levels of zinc and manganese intake, posing possible health concerns. This is the first comprehensive assessment of these nutrients in Korea and is significant for considering all age groups, including infants, by analyzing nutrient content for table-ready (cooked) samples of foods. It is hoped that the Korean Total Diet Survey will be expanded to assess a wider range of nutrients for better nutrient intake assessment in Korea. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01394-y.
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Affiliation(s)
- Jee Yeon Lee
- Center for Health Industry Policy, Korea Health Industry Development Institute, Osongsaengmyeong2-ro 187, Cheongju-si, Chungcheongbuk-do 28159 Republic of Korea
| | - Cho-il Kim
- Department of Food and Nutrition, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826 Republic of Korea
| | - Soo Hyun Lee
- Department of Medical Record and Health Information Management, Kongju National University, Gongjudaehak-ro 56, Gongju-si, Chungcheongnam-do 32588 Republic of Korea
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34
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Li B, Yu W, Verkhratsky A. Trace metals and astrocytes physiology and pathophysiology. Cell Calcium 2024; 118:102843. [PMID: 38199057 DOI: 10.1016/j.ceca.2024.102843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/03/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Several trace metals, including iron, copper, manganese and zinc are essential for normal function of the nervous system. Both deficiency and excessive accumulation of these metals trigger neuropathological developments. The central nervous system (CNS) is in possession of dedicated homeostatic system that removes, accumulates, stores and releases these metals to fulfil nervous tissue demand. This system is mainly associated with astrocytes that act as dynamic reservoirs for trace metals, these being a part of a global system of CNS ionostasis. Here we overview physiological and pathophysiological aspects of astrocyte-cantered trace metals regulation.
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Affiliation(s)
- Baoman Li
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Forensic Bio-Evidence Sciences, China; China Medical University Centre of Forensic Investigation, China
| | - Weiyang Yu
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China; Liaoning Province Key Laboratory of Forensic Bio-Evidence Sciences, China; China Medical University Centre of Forensic Investigation, China
| | - Alexei Verkhratsky
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China; Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK; Achucarro Center for Neuroscience, Ikerbasque, Bilbao 48011, Spain; Department of Stem Cell Biology, State Research Institute Centre for Innovative Medicine, Vilnius LT-01102, Lithuania.
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Lu W, He J, Wei S, Tang C, Ma X, Li D, Chen H, Zou Y. Circular RNA circRest regulates manganese induced cell apoptosis by targeting the mmu-miR-6914-5p/Ephb3 axis. Environ Pollut 2024; 344:123395. [PMID: 38266697 DOI: 10.1016/j.envpol.2024.123395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/23/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
Overexposure to manganese (Mn) can lead to neurotoxicity, the underlying mechanisms remain incompletely understood. Circular RNAs (circRNAs) have emerged as important regulators in various biological processes. It is plausible that circRNAs may be involved in the biological mechanisms underlying Mn caused neurotoxicity. Here, circRest was downregulated in Mn-exposed mouse neuroblastoma cells (N2a cells) by RNA sequencing and quantitative real-time PCR. When circRest was overexpressed, it led to an increase in cell viability and a decrease in apoptosis following Mn exposure. Conversely, silencing circRest resulted in opposite effects in N2a cells. Further investigation revealed that circRest acts as a mmu-miR-6914-5p sponge, and mmu-miR-6914-5p could bind and inhibit Ephb3, thereby promoting apoptosis in N2a cells. This was confirmed through RNA antisense purification and dual luciferase reporter assays. Additionally, the circRest/mmu-miR-6914-5p/Ephb3 axis may influence memory and learning in mice following Mn exposure. In conclusion, our study uncovers a novel mechanism by which circRest may attenuate Mn caused neurotoxicity via the mmu-miR-6914-5p/Ephb3 axis.
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Affiliation(s)
- Wenmin Lu
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jiacheng He
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Shengtao Wei
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Chuanqiao Tang
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Xiaoli Ma
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Danni Li
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Hao Chen
- Department of Occupational and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, 530021, China
| | - Yunfeng Zou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, 530021, Guangxi, China; Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, 530021, Guangxi, China; Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Nanning, 530021, Guangxi, China.
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Qi Y, Si H, Jin X, Guo Y, Xia J, He J, Deng X, Deng M, Yao W, Hao C. Expression levels of key immune indicators and immune checkpoints in manganese-exposed rats. Ecotoxicol Environ Saf 2024; 272:116029. [PMID: 38290312 DOI: 10.1016/j.ecoenv.2024.116029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/01/2024]
Abstract
Manganese is essential trace elements, to participate in the body a variety of biochemical reactions, has important physiological functions, such as stimulate the immune cell proliferation, strengthen the cellular immunity, etc. However, excessive manganese exposure can cause damage to multiple systems of the body.The immune system is extremely vulnerable to external toxicants, however manganese research on the immune system are inadequate and biomarkers are lacking. Therefore, here we applied a manganese-exposed rat model to make preliminary observations on the immunotoxic effects of manganese. We found that manganese exposure inhibited humoral immune function in rats by decreasing peripheral blood IgG (ImmunoglobulinG, IgG), IgM (ImmunoglobulinM, IgM) and complement C3 levels; It also regulates rat cellular immune activity by influencing peripheral blood, spleen, and thymus T cell numbers and immune organ ICs (Immune Checkpoints, ICs) and cytokine expression. Furthermore, it was revealed that the impact of manganese exposure on the immune function of rats exhibited a correlation with both the dosage and duration of exposure. Notably, prolonged exposure to high doses of manganese had the most pronounced influence on rat immune function, primarily manifesting as immunosuppression.The above findings suggest that manganese exposure leads to impaired immune function and related changes in immune indicators, or may provide clues for the discovery of its biomarkers.
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Affiliation(s)
- Yuanmeng Qi
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Huifang Si
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China; Prevention and Infection Control Section, Xi'an Union Hospital, 710199 Xi'an, Shaanxi Province, China
| | - Xiaofei Jin
- Department of Ultrasound, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450015 Henan, China
| | - Yonghua Guo
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Jiarui Xia
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Jing He
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Xuedan Deng
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Meng Deng
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China
| | - Wu Yao
- Department of Occupational and Environment Health, College of Public Health, Zhengzhou University, 450001 Henan, China.
| | - Changfu Hao
- Department of Child and Adolescence Health, College of Public Health, Zhengzhou University, 450001 Henan, China.
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Shan L, Wang Z, Wu L, Qian K, Peng G, Wei M, Tang B, Jun X. Statistical and network analyses reveal mechanisms for the enhancement of macrophage immunity by manganese in Mycobacterium tuberculosis infection. Biochem Biophys Rep 2024; 37:101602. [PMID: 38155943 PMCID: PMC10753046 DOI: 10.1016/j.bbrep.2023.101602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/01/2023] [Accepted: 11/30/2023] [Indexed: 12/30/2023] Open
Abstract
Tuberculosis is a significant infectious disease that poses a serious risk to human health. Our previous research has indicated that manganese ions reduce the bacterial load of Mycobacterium tuberculosis in macrophages, but the exact immune defense mechanism remains unknown. Several critical proteins and pathways involved in the host's immune response during this process are still unidentified. Our research aims to identify these proteins and pathways and provide a rationale for the use of manganese ions in the adjuvant treatment of tuberculosis. We downloaded GSE211666 data from the GEO database and selected the RM (Post-infection manganese ion treatment group) and Ra (single-infection group) groups for comparison and analysis to identify differential genes. These differential genes were then enriched and analyzed using STRING, Cytoscape, and NDEx tools to identify the two most relevant pathways of the "Host Response Signature Network." After conducting an in-depth analysis of these two pathways, we found that manganese ions mainly mediate (1) the interferon -gamma (IFN-γ) and its receptor IFNGR and the downstream JAK-STAT pathway and (2) the NFκB pathway to enhance macrophage response to interferon, autophagy, polarization, and cytokine release. Using qPCR experiments, we verified the increased expression of CXCL10, MHCII, IFNγ, CSF2, and IL12, all of which are cytokines that play a key role in resistance to Mycobacterium tuberculosis infection, suggesting that macrophages enter a state of pro-inflammatory and activation after the addition of manganese ions, which enhances their immunosuppressive effect against Mycobacterium tuberculosis. We conclude that our study provides evidence of manganese ion's ability to treat tuberculosis adjuvantly.
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Affiliation(s)
- Lidong Shan
- College of Life Science, Bengbu Medical University, China
| | - Zihai Wang
- College of Life Science, Bengbu Medical University, China
| | - Lingshan Wu
- College of Life Science, Bengbu Medical University, China
| | - Kaiqiang Qian
- College of Life Science, Bengbu Medical University, China
| | - Guisen Peng
- College of Life Science, Bengbu Medical University, China
| | - MeiLi Wei
- College of Life Science, Bengbu Medical University, China
| | - Bikui Tang
- College of Life Science, Bengbu Medical University, China
- Anhui Province Key Laboratory of Immunology in Chronic Diseases, China
| | - Xi Jun
- College of Life Science, Bengbu Medical University, China
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Deng X, Liu T, Zhu Y, Chen J, Song Z, Shi Z, Chen H. Ca & Mn dual-ion hybrid nanostimulator boosting anti-tumor immunity via ferroptosis and innate immunity awakening. Bioact Mater 2024; 33:483-496. [PMID: 38125638 PMCID: PMC10730349 DOI: 10.1016/j.bioactmat.2023.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/08/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Limited by low tumor immunogenicity and the immunosuppressive tumor microenvironment (TME), triple-negative breast cancer (TNBC) has been poorly responsive to immunotherapy so far. Herein, a Ca & Mn dual-ion hybrid nanostimulator (CMS) is constructed to enhance anti-tumor immunity through ferroptosis inducing and innate immunity awakening, which can serve as a ferroptosis inducer and immunoadjuvant for TNBC concurrently. On one hand, glutathione (GSH) depletion and reactive oxygen species (ROS) generation can be achieved due to the mixed valence state of Mn in CMS. On the other hand, as an exotic Ca2+ supplier, CMS causes mitochondrial Ca2+ overload, which further amplifies the oxidative stress. Significantly, tumor cells undergo ferroptosis because of the inactivation of glutathione peroxidase 4 (GPX4) and accumulation of lipid peroxidation (LPO). More impressively, CMS can act as an immunoadjuvant to awaken innate immunity by alleviating intra-tumor hypoxia and Mn2+-induced activation of the STING signaling pathway, which promotes polarization of tumor-associated macrophages (TAMs) and activation of dendritic cells (DCs) for antigen presentation and subsequent infiltration of tumor-specific cytotoxic T lymphocytes (CTLs) into tumor tissues. Taken together, this work demonstrates a novel strategy of simultaneously inducing ferroptosis and awakening innate immunity, offering a new perspective for effective tumor immunotherapy of TNBC.
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Affiliation(s)
- Xi Deng
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Tianzhi Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
| | - Yutong Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jufeng Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Ze Song
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Zhangpeng Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Nanotechnology and Intestinal Microecology Research Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Hangrong Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, PR China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, PR China
- Nanotechnology and Intestinal Microecology Research Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
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Chen H, Wu J, Zhu X, Ma Y, Li Z, Lu L, Aschner M, Su P, Luo W. Manganese-induced miR-125b-2-3p promotes anxiety-like behavior via TFR1-mediated ferroptosis. Environ Pollut 2024; 344:123255. [PMID: 38159631 DOI: 10.1016/j.envpol.2023.123255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/07/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
The toxic effects of excessive manganese (Mn) levels in the environment have led to a severe public health concern. Ferroptosis is a newly form of cell death relying on iron, inherent to pathophysiological processes of psychiatric disorders, such as anxiety and depression-like behaviors. Excessive Mn exposure causes various neurological effects, including neuronal death and mood disorders. Whether Mn exposure causes anxiety and depression-like behaviors, and the underlying mechanisms of Mn-induced ferroptosis have yet to be determined. Here, Mn-exposed mice showed anxiety-like behavior. We also confirmed the accumulation of ferrous ion (Fe2+), lipid peroxidation, and depletion of antioxidant defense system both in vitro and in vivo Mn-exposed models, suggesting that Mn exposure can induce ferroptosis. Furthermore, Mn exposure downregulated the expression of miR-125b-2-3p. In turn, overexpression of miR-125b-2-3p alleviated the Mn-induced ferroptosis by targeting Transferrin receptor protein 1 (TFR1). In summary, this novel study established the propensity of Mn to cause anxiety-like behavior, an effect that was regulated by miR-125b-2-3p and ensuing ferroptosis secondary to the targeting of TFR1. These results offer promising targets for the prevention and treatment of Mn-induced neurotoxicity.
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Affiliation(s)
- Honggang Chen
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Jinxia Wu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiaozheng Zhu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Yan Ma
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Zeye Li
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Liang Lu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Peng Su
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China
| | - Wenjing Luo
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, 710032, China.
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Guayjarernpanishk W, Sampanpanish P. Efficiency of sodium phytate in the remediation of As, Mn, and Cu contamination in acid mine drainage using water hyacinth. Heliyon 2024; 10:e26590. [PMID: 38420429 PMCID: PMC10901003 DOI: 10.1016/j.heliyon.2024.e26590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024] Open
Abstract
The accumulation and uptake efficiency of heavy metals, including As, Mn, and Cu, in water hyacinth (Eichhornia crassipes (Mart.) Solms) grown in synthetic acidic wastewater supplemented with sodium phytate (SP) was examined. Three treatments were studied using synthetic acidic wastewater containing 0.25, 5.0, and 1.0 mg/L of As, Mn, and Cu, respectively, (SM + heavy metals) and having pH in the range of 4-6, which comprised of (1) control treatments using SM + heavy metals at pH 4, 5, 6 without SP, and treatments using SM + heavy metals at pH 4, 5, 6 with SP: Cu (2) in a 1:3 M ratio and (3) a 1:6 M ratio. The translocation factor (TF < 1) indicated that plants had a lower capacity to transport heavy metals from the roots to the stems. The shoots of water hyacinth exhibited the highest capacity to absorb and store As in the pH 4-treatment with SP (SP:Cu1:3 mol), whereas the roots showed the greatest capacity at pH 4 without SP. The roots and shoots of the water hyacinth showed the greatest capacity to take up and store Mn in the pH 5-treatment with a 1:3 M ratio of SP:Cu. The roots showed the greatest capacity to take up and store Cu in the pH 6-treatment, and the shoots showed the highest capability in the pH 5-treatment with 1:3 M ratio of SP:Cu. Moreover, analysis of the chemical forms revealed that As accumulated in the arsenate form, whereas Mn accumulated in the divalent form.
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Affiliation(s)
- Wannipa Guayjarernpanishk
- Interdisciplinary Program in Environmental Science, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pantawat Sampanpanish
- Environmental Research Institute, Chulalongkorn University (ERIC), 254 Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
- Research Program of Toxic Substance Management in the Mining Industry, Centre of Excellence on Hazardous Substance Management, Bangkok, 10330, Thailand
- Research Unit of Green Mining Management (GMM), Chulalongkorn University, Bangkok, 10330, Thailand
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Huang Q, Wan J, Nan W, Li S, He B, Peng Z. Association between manganese exposure in heavy metals mixtures and the prevalence of sarcopenia in US adults from NHANES 2011-2018. J Hazard Mater 2024; 464:133005. [PMID: 37988867 DOI: 10.1016/j.jhazmat.2023.133005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/10/2023] [Accepted: 11/12/2023] [Indexed: 11/23/2023]
Abstract
Environmental pollution is identified as an essential risk factor for sarcopenia. However, the effect of manganese (Mn) exposure on the prevalence of sarcopenia is not assessed. Our study investigated the correlation between blood Mn concentration and sarcopenia risk in the National Health and Nutrition Examination Survey (NHANES) from 2011 to 2018. Three statistical methods were used to assess these correlations. Mediation analysis was performed to explore the role of inflammation in Mn exposure-induced sarcopenia. Of the 4957 individuals enrolled in this study, 398 (8 %) were diagnosed with sarcopenia. We found a positive association between the log10 Mn concentration and the prevalence of sarcopenia in the logistic regression model. Moreover, heavy metals mixtures were positively correlated with the prevalence of sarcopenia, with Mn identified as the main contributor to this association in the weighted quantile sum (WQS) and Bayesian kernel machine regression (BKMR) models. Furthermore, inflammation mediated the relationship between Mn exposure and the prevalence of sarcopenia, explaining 7.29 % of the effect (odds ratio: 0.03, 0.19, P = 0.002). Thus, our study results revealed that excessive Mn exposure is a contributing factor for sarcopenia. More prospective studies are required to examine the association between Mn exposure and the prevalence of sarcopenia.
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Affiliation(s)
- Qiong Huang
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China; Department of Geriatric Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jinfa Wan
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China; Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha 410011, China
| | - Wenbin Nan
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China; Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha 410011, China
| | - Siqi Li
- Department of Geriatric Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Baimei He
- Department of Geriatric Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhenyu Peng
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha 410011, China; Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha 410011, China.
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Li Q, Liu L, Yan W, Chen X, Liu R, Zhao Z, Jiang F, Huang Y, Zhang S, Zou Y, Yang C. Influence on the release of arsenic and tungsten from sediment, and effect on other heavy metals and microorganisms by ceria nanoparticle capping. Environ Pollut 2024; 343:123161. [PMID: 38104760 DOI: 10.1016/j.envpol.2023.123161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/03/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
In this study, ceria nanoparticle (CNP) was used as a capping agent to investigate the efficiency and mechanism of simultaneously controlling the release of sediment internal Arsenic (As) and tungsten (W). The results of incubation experiment demonstrated that CNP capping reduced soluble As and W by 81.80% and 97.97% in overlying water, respectively; soluble As and W by 65.64% and 60.13% in pore water, respectively; and labile As and W in sediment by 45.20% and 53.20%, respectively. The main mechanism of CNP controlling sediment internal As and W was through adsorption via ligand exchange and inner-sphere complexation, as determined through adsorption experiments, XPS and FIRT spectra analysis. Besides, CNP also acted as an oxidant, facilitating the oxidation of AsⅢ to AsV and thereby enhancing the adsorption of soluble As. Additionally, sediment As and W fractions experiments demonstrated that the immobilization of As and W with CNP treatment via transforming mobile to stable fractions was another mechanism inhibiting sediment As and W release. The obtained significant positive correlation between soluble As/W and Fe/Mn, labile As/W and Fe/Mn indicated that iron (Fe) and manganese (Mn) oxidation, influenced by CNP, serve as additional mechanisms. Moreover, Fe redox plays a crucial role in controlling internal As and W, while Mn redox plays a more significant role in controlling As compared to W. Meanwhile, CNP capping effectively prevented the release of As and W by reducing the activity of microorganisms that degrade Fe-bound As and W and reduced the release risk of V, Cr, Co, Ni, and Zn from sediments. Overall, this study proved that CNP was a suitable capping agent for simultaneously controlling the release of As and W from sediment.
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Affiliation(s)
- Qi Li
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.
| | - Ling Liu
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.
| | - Wenming Yan
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China; National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
| | - Xiang Chen
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Ruiyan Liu
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Ziyi Zhao
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Feng Jiang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Yanfen Huang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Shunting Zhang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Yiqian Zou
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Chenjun Yang
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
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Liu Y, Lv S, He G, Wang C, Ou C. Ferroptosis at the crossroads of manganese-induced neurotoxicity: A retrospective study. Toxicology 2024; 502:153727. [PMID: 38216111 DOI: 10.1016/j.tox.2024.153727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/25/2023] [Accepted: 01/04/2024] [Indexed: 01/14/2024]
Abstract
Manganese is an essential trace element, but overexposure can cause neurotoxicity and subsequent neurodegenerative diseases. Ferroptosis is a form of cell death characterized by lipid peroxidation and iron overload inside cells, which is closely related to manganese neurotoxicity. Manganese can induce ferroptosis through multiple pathways: causing oxidative stress and increased cellular reactive oxygen species (ROS), resulting in lipid peroxidation; depleting glutathione (GSH) and weakening the antioxidant capacity of cells; disrupting iron metabolism and increasing iron-dependent lipid peroxidation; damaging mitochondrial function and disrupting the electron transport chain, leading to increased ROS production. Oxidative stress, iron metabolism disorders, lipid peroxidation, GSH depletion, and mitochondrial dysfunction, typical features of ferroptosis, have been observed in animal and cell models after manganese exposure. In summary, manganese can participate in the pathogenesis of neurodegenerative diseases by inducing events related to ferroptosis. This provides new insights into studying the mechanism of manganese neurotoxicity and developing therapeutic drugs.
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Affiliation(s)
- Yaoyang Liu
- Department of Toxicology, College of Public Health, Guilin Medical University, Guilin, China
| | - Shanyu Lv
- Department of Toxicology, College of Public Health, Guilin Medical University, Guilin, China
| | - Guoguo He
- Department of Toxicology, College of Public Health, Guilin Medical University, Guilin, China
| | - Changyong Wang
- Department of Toxicology, College of Public Health, Guilin Medical University, Guilin, China.
| | - Chaoyan Ou
- Department of Toxicology, College of Public Health, Guilin Medical University, Guilin, China.
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Zuo J, Zhang H, Gang H, Mai Q, Jia Z, Liu H, Xia W, Xu S, Li Y. Associations of intrauterine exposure to manganese with fetal and early-childhood growth: a prospective prenatal cohort study. Environ Sci Pollut Res Int 2024; 31:14303-14317. [PMID: 38273082 DOI: 10.1007/s11356-023-31773-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024]
Abstract
Prenatal manganese (Mn) exposure may be related to poor birth outcomes; however, there are few relevant epidemiological reports on the effects of intrauterine Mn levels on intrauterine fetal and early childhood growth. From 2013 to 2016, 2082 pairs of mothers and infants were recruited in Wuhan, China, who provided an entire set of urine samples during their first, second, and third trimesters. Fetal head circumference (HC), abdominal circumference (AC), femoral length (FL), and estimated fetal weight (EFW) were obtained by ultrasound at the 16, 24, and 31 weeks of pregnancy. When the children were born, 6 months old, 12 months old, and 24 months old, their weight, height, weight-for-height, and BMI were measured. We used generalized linear models, generalized estimated equations, and restricted cubic spline curves (RCS) to investigate the linear and nonlinear relationships between antenatal Mn levels and fetal and early childhood growth. In all fetuses, Mn exposure during the 1st and 2nd gestation was associated with decreased fetal AC, FL, and EFW at 24 weeks (e.g., for each doubling of urinary Mn concentrations during the 1st and 2nd gestation, the SD score of EFW at 24 weeks decreased by - 4.16% (95% CI, - 6.22%, - 2.10%) and - 3.78% (95% CI, - 5.86%, - 1.70%)). Mn concentrations in the highest tertile group of the 1st and 2nd gestation were related to decreased fetus growth parameters compared to the lowest tertile group. For each doubling of the average Mn concentrations during pregnancy, the z-scores of weight, weight-for-height, and BMI at 12 months decreased, with percentage changes of - 2.93% (95% CI, - 5.08%, - 0.79%), - 3.25% (95% CI, - 5.56%, - 0.94%), and - 3.09% (95% CI, - 5.44%, - 0.73%). In the RCS model, we found a reverse U-shaped association between 1st trimester Mn concentration and fetal FL at 16 weeks and HC at 31 weeks in male fetuses and a non-linear association between mean Mn concentration during pregnancy and girls' weight-for-height and BMI at 6 months. Intrauterine exposure to Mn may be related to restricted growth in the fetus and early childhood, especially in fetuses at 24 weeks of gestation and children at 12 months of age. Also, meaningful curvilinear relationships were found in the sex stratification.
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Affiliation(s)
- Jingwen Zuo
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Hongling Zhang
- Wuchang University of Technology, Wuhan, 430023, People's Republic of China
| | - Huiqing Gang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Qi Mai
- Center for Public Health Laboratory Service, Wuhan Centers for Disease Control & Prevention, Institute of Environmental Health, Wuhan, Hubei, 430024, People's Republic of China
| | - Zhenxian Jia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Hongxiu Liu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wei Xia
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Shunqing Xu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yuanyuan Li
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Hu Y, Jiang Z, Liu X, Wang H. Remove elemental mercury from simulated flue gas by CeO 2-modified MnO x/HZSM-5 adsorbent. Environ Sci Pollut Res Int 2024; 31:11276-11284. [PMID: 38217812 DOI: 10.1007/s11356-024-31881-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
In this study, we synthesized a Ce-modified Mn/HZSM-5 adsorbent via the ultrasound-assisted impregnation for Hg0 capture. Given the addition of 15% CeO2, ~ 100% Hg0 efficiency was reached at 200 °C, suggesting its promotional effect on Hg0 removal. The doped Ce introduced additional chemisorbed oxygen species onto the adsorbent surfaces, which facilitated the oxidation of Hg0 to HgO. Even though adding CeO2 led to a weakened adsorbent acidity, yet it appeared that this negative affect could be completely overcome by the enhanced oxidative ability, which finally endowed Ce-modified Mn/HZSM-5 with a satisfactory Hg0 removal performance within the whole investigated temperature range. During the Hg0 capture process, chemisorption was predominant with Mn4+operating as the main active site for oxidizing Hg0 to Hg2+. Finally, the 15Ce-Mn/HZSM-5 adsorbent exhibited good recyclability and stability. However, its tolerance to H2O and SO2 appeared relatively weak, suggesting that some modification should be conducted to improve its practicality.
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Affiliation(s)
- Yongjin Hu
- College of Quality & Safety Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Zhichang Jiang
- College of Quality & Safety Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Xin Liu
- College of Quality & Safety Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Haining Wang
- College of Quality & Safety Engineering, China Jiliang University, Hangzhou, 310018, China.
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Zhou H, Chen N, He B, Ma Z, Liu W, Xu B. Melatonin modulates the differentiation of neural stem cells exposed to manganese via SIRT1/β-catenin signaling. Food Chem Toxicol 2024; 184:114349. [PMID: 38081531 DOI: 10.1016/j.fct.2023.114349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
Excessive exposure of children to manganese (Mn) in the environment has a bearing on developmental neurotoxicity. Although melatonin (Mel) can play a neuroprotective role by modulating the differentiation of neural stem cells (NSCs) in the developing brain, its specific mechanism under Mn overexposure remains to be explored. Here, we cultured primary NSCs as an available model to investigate the relevant molecular mechanism of Mel mitigation on Mn-induced disorder of NSCs differentiation through sirtuin 1 (SIRT1)/β-catenin pathway. It was found that Mel could facilitate the differentiation of Mn-treated NSCs into neurons. Further, our results uncovered that the pro-differentiation mechanism of Mel depended upon ascending the activity of SIRT1, thereby weakening β-catenin acetylation and increasing phosphorylation of β-catenin ser675 in the cytoplasm, which facilitates the nuclear translocation of β-catenin. Furthermore, the role of SIRT1 in Mel-mediated signal transduction was investigated through the pretreatment of NSCs using a highly specific SIRT1 inhibitor, EX527. After EX527 pretreatment, Mel could not maintain its protective effect. Overall, our results revealed that Mel could alleviate Mn-induced disorder of NSCs differentiation through the activation of the SIRT1/β-catenin pathway.
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Affiliation(s)
- Han Zhou
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China
| | - Nan Chen
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China
| | - Bin He
- Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China
| | - Zhuo Ma
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China
| | - Wei Liu
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China
| | - Bin Xu
- Key laboratory of Environmental Stress and Chronic Disease Control and Prevention (China Medical University), Ministry of Education, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China; Department of Environmental Health, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning, 110122, PR China.
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Li Y, Zhang MB, Ni CH, Wang HQ. [Bibliometric and visual analysis of neurological damage caused by electrical welding operations]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2024; 42:25-33. [PMID: 38311946 DOI: 10.3760/cma.j.cn121094-20230213-00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Objective: To analyze and summarize the trends and hot spots in the field of neurological damage caused by electric welding operations, and to provide ideas for new researches by searching the domestic and international literature. Methods: In December 2022, using Web of Science Citation Index (Web of Science), China Journal Full-Text Database (CNKI) and Wanfang Database as search databases, literature search was conducted on the Chinese and English search terms related to eletrical welding operations and neurological damage. The bibliometric analysis software VOSviewer 1.6.18 and CiteSpace 6.1.6 were used to visualize the publication year, publication quantity, country, research institution and key words of the literature. Results: A total of 309 articles (112 in Chinese and 197 in English) were included in this study. The first domestic and international papers were published in 1976 and 1994 respectively, and the number of papers reached the peak in 2006 and 2018, and then showed a downward trend to varying degrees. In China, Shandong First Medical University (including Shandong Institute of Occupational Health and Occupational Disease Prevention and Shandong Academy of Medical Sciences) and Wuhan University of Science and Technology had the largest number of publications. The 309 articles were from 52 Chinese journals and 86 English journals. The co-occurrence analysis of key words showed that the domestic research mainly focused on eletrical welding operation, welding workers, neurobehavioral function and manganese, and the nervous system damage caused by manganese in welding smoke was the field of international attention. Long term exposure, risk, and performance were key buzzwords in the field. Conclusion: The research focus in the field of nervous system damage caused by electric welding operation has an obvious trend of time evolution, gradually transiting from clinical manifestations to its toxic mechanism and early biomarkers.
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Affiliation(s)
- Y Li
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - M B Zhang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - C H Ni
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - H Q Wang
- National Institute for Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Ghosn ZA, Sparks KM, Spaulding JL, Vutukuri S, Ahmed MJJ, VanBerkum MFA. Divalent metal content in diet affects severity of manganese toxicity in Drosophila. Biol Open 2024; 13:bio060204. [PMID: 38117005 PMCID: PMC10810561 DOI: 10.1242/bio.060204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023] Open
Abstract
Dysregulation of manganese (Mn) homeostasis is a contributing factor in many neuro-degenerative diseases. Adult Drosophila are sensitive to excessive levels of dietary Mn, dying relatively early, and exhibiting biochemical and mobility changes reminiscent of Parkinsonian conditions. To further study Mn homeostasis in Drosophila, we sought to test lower levels of dietary Mn (5 mM) and noted a striking difference in Canton-S adult survivorship on different food. On a cornmeal diet, Mn-treated flies live only about half as long as untreated siblings. Yet, with the same Mn concentration in a molasses diet, adults survive about 80% as long as untreated siblings, and adults raised on a sucrose-yeast diet are completely insensitive to this low dose of dietary Mn. By manipulating metal ion content in the cornmeal diet, and measuring the metal content in each diet, we traced the difference in lifespan to the levels of calcium and magnesium in the food, suggesting that these ions are involved in Mn uptake and/or use. Based on these findings, it is recommended that the total dietary load of metal ions be considered when assessing Mn toxicity.
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Affiliation(s)
- Zahraa A. Ghosn
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Kailynn M. Sparks
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Jacob L. Spaulding
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Sanjana Vutukuri
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Mirza J. J. Ahmed
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Mark F. A. VanBerkum
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
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Gupta S, Arora P, Kumar R, Awasthi A, Chandra B, Eerlapally R, Xiong J, Guo Y, Que L, Draksharapu A. Formation of a Reactive [Mn(III)-O-Ce(IV)] Species and its Facile Equilibrium with Related Mn(IV)(OX) (X = Sc or H) Complexes. Angew Chem Int Ed Engl 2024; 63:e202316378. [PMID: 37997195 PMCID: PMC10873046 DOI: 10.1002/anie.202316378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Lewis acid-bound high valent Mn-oxo species are of great importance due to their relevance to photosystem II. Here, we report the synthesis of a unique [(BnTPEN)Mn(III)-O-Ce(IV)(NO3 )4 ]+ adduct (2) by the reaction of (BnTPEN)Mn(II) (1) with 4 eq. ceric ammonium nitrate. 2 has been characterized using UV/Vis, NMR, resonance Raman spectroscopy, as well as by mass spectrometry. Treatment of 2 with Sc(III)(OTf)3 results in the formation of (BnTPEN)Mn(IV)-O-Sc(III) (3), while HClO4 addition to 2 forms (BnTPEN)Mn(IV)-OH (4), reverting to 2 upon Ce(III)(NO3 )3 addition. 2 can also be prepared by the oxidation of 1 eq. Ce(III)(NO3 )3 with [(BnTPEN)Mn(IV)=O]2+ (5). In addition, the EPR spectroscopy revealed the elegant temperature-dependent equilibria between 2 and Mn(IV) species. The binding of redox-active Ce(IV) boosts electron transfer efficiency of 2 towards ferrocenes. Remarkably, the newly characterized Mn(III)-O-Ce(IV) species can carry out O-atom and H-atom transfer reactions.
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Affiliation(s)
- Sikha Gupta
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Pragya Arora
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Rakesh Kumar
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Ayushi Awasthi
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Bittu Chandra
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Raju Eerlapally
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jin Xiong
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Yisong Guo
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Lawrence Que
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Apparao Draksharapu
- Southern Laboratories-208A, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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Wang X, Yang X, He W, Zhang S, Song X, Zhang J, Ma J, Chen L, Niu P, Chen T. Single-cell transcriptomics analysis of zebrafish brain reveals adverse effects of manganese on neurogenesis. Environ Pollut 2024; 341:122908. [PMID: 37952916 DOI: 10.1016/j.envpol.2023.122908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/22/2023] [Accepted: 11/08/2023] [Indexed: 11/14/2023]
Abstract
Manganese (Mn) is considered as an important environmental risk factor for Parkinson's disease. Excessive exposure to Mn can damage various neural cells and affect the neurogenesis, resulting in neurological dysfunction. However, the specific mechanisms of Mn exposure affecting neurogenesis have not been well understood, including compositional changes and heterogeneity of various neural cells. Zebrafish have been successfully used as a neurotoxicity model due to its homology with mammals in several key regions of the brain, as well as its advantages such as small size. We performed single-cell RNA sequencing of zebrafish brains from normal and Mn-exposed groups. Our results suggested that low levels of Mn exposure activated neurogenesis in the zebrafish brain, including promoting the proliferation of neural progenitor cells and differentiation to newborn neurons and oligodendrocytes, while high levels of Mn exposure inhibited neurogenesis and neural function. Mn could affect neurogenesis through specific molecular pathways. In addition, Mn regulated intercellular communication and affected cellular communication in neural cells through specific signaling pathways. Taken together, our study elucidates the cellular composition of the zebrafish brain and adds to the understanding of the mechanisms involved in Mn-induced neurogenesis damage.
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Affiliation(s)
- Xueting Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xin Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Weifeng He
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Shixuan Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xin Song
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Junrou Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Junxiang Ma
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Li Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Piye Niu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Tian Chen
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
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