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Hossen F, Geng X, Sun GY, Yao X, Lee JC. Oligomeric Amyloid-β and Tau Alter Cell Adhesion Properties and Induce Inflammatory Responses in Cerebral Endothelial Cells Through the RhoA/ROCK Pathway. Mol Neurobiol 2024:10.1007/s12035-024-04138-z. [PMID: 38561558 PMCID: PMC11445398 DOI: 10.1007/s12035-024-04138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Dysfunction of cerebral endothelial cells (CECs) has been implicated in the pathology of Alzheimer's disease (AD). Despite evidence showing cytotoxic effects of oligomeric amyloid-β (oAβ) and Tau (oTau) in the central nervous system, their direct effects on CECs have not been fully investigated. In this study, we examined the direct effects of oAβ, oTau, and their combination on cell adhesion properties and inflammatory responses in CECs. We found that both oAβ and oTau increased cell stiffness, as well as the p-selectin/Sialyl-LewisX (sLeX) bonding-mediated membrane tether force and probability of adhesion in CECs. Consistent with these biomechanical alterations, treatments with oAβ or oTau also increased actin polymerization and the expression of p-selectin at the cell surface. These toxic oligomeric peptides also triggered inflammatory responses, including upregulations of p-NF-kB p65, IL-1β, and TNF-α. In addition, they rapidly activated the RhoA/ROCK pathway. These biochemical and biomechanical changes were further enhanced by the treatment with the combination of oAβ and oTau, which were significantly suppressed by Fasudil, a specific inhibitor for the RhoA/ROCK pathway. In conclusion, our data suggest that oAβ, oTau, and their combination triggered subcellular mechanical alterations and inflammatory responses in CECs through the RhoA/ROCK pathway.
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Affiliation(s)
- Faruk Hossen
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Xue Geng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Xincheng Yao
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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2
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Singh A, Behl T, Sehgal A, Singh S, Sharma N, Mani V, Alsubayiel AM, Bhatia S, Al-Harrasi A, Bungau S. Exploring the therapeutic promise of targeting Rho kinase in rheumatoid arthritis. Inflammopharmacology 2021; 29:1641-1651. [PMID: 34704172 DOI: 10.1007/s10787-021-00884-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 10/10/2021] [Indexed: 01/28/2023]
Abstract
Rheumatoid arthritis (RA) is a prevalent systemic autoimmune disease caused by dysregulated inflammatory reactions, T lymphocyte invasion into the joints, and articular thickening. Immune cells, primarily tumor necrosis factor-alpha (TNF-α) and chemokines (interleukin or IL-1), which are predominantly generated by activated macrophages cells, have also been involved with the pathogenesis of rheumatoid arthritis. Rho GTPases are integral factors of biochemical cascades utilized by antigens, and also by cellular receptors, cytokines, and chemokines, to modulate inflammatory reactions, according to growing data. The Rho family is a group of G proteins that govern a variety of biological and physiological activities such as mobility, actin stress fiber production, growth, and polarity. Research suggests that the Rho A and Rho-associated coiled-coil kinase (ROCK) regulatory cascade could be essential in several autoimmune conditions, including RA. ROCK is activated in the synovial of rheumatoid arthritis patients, while the blocking of ROCK with fasudil could also decrease IL-6, TNF-α, and IL-1. This review covers current developments in understanding the overactivation of Rho enzyme activity in RA suppressed by ROCK inhibitors which can be utilized for the treatment of autoimmune disease. We offer an outline of the function of ROCK inhibitors in immune cells and discuss findings which emphasize the rising participation of this category of kinases within the pathological process of autoimmune disorders. Assuming the potential ability of ROCK as a therapeutic, we define approaches that might be used to inhibit Rho kinase activity in rheumatoid disorders.
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Affiliation(s)
- Anuja Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India.
| | - Aayush Sehgal
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab, India
| | - Vasudevan Mani
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah, Saudi Arabia
| | - Amal M Alsubayiel
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, Saudi Arabia
| | - Saurabh Bhatia
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman.,School of Health Science, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, Oman
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
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3
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Cheng D, Wang G, Wang X, Tang J, Yu Q, Zhang X, Wang S. Neuro-protection of Chlorogenic acid against Al-induced apoptosis in PC12 cells via modulation of Al metabolism and Akt/GSK-3β pathway. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103984] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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4
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Zhang X, Ye P, Wang D, Liu Y, Cao L, Wang Y, Xu Y, Zhu C. Involvement of RhoA/ROCK Signaling in Aβ-Induced Chemotaxis, Cytotoxicity and Inflammatory Response of Microglial BV2 Cells. Cell Mol Neurobiol 2019; 39:637-650. [PMID: 30852720 DOI: 10.1007/s10571-019-00668-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/28/2019] [Indexed: 12/14/2022]
Abstract
Reactive microglia clustering around amyloid plaques in brain is a histopathological feature of Alzheimer's disease (AD) and reflects the contribution of neuroinflammation in AD pathogenesis. β-Amyloid peptide (Aβ) has been shown to induce a range of microglial responses including chemotaxis, cytotoxicity and inflammation, but the underlying mechanism is poorly understood. Considering the fundamental role of RhoA/ROCK signaling in cell migration and its broad implication in AD and neuroinflammation, we hypothesized that RhoA/ROCK signaling might be involved in Aβ-induced microglial responses. From in vivo mouse models including APP/PS1 transgene and fibrillar Aβ stereotactic injection, we observed the elevated expression level of RhoA in reactive microglia. Through a series in vitro cell migration, cytotoxicity and biochemistry assays, we found that RhoA/ROCK signaling plays an essential role in Aβ-induced responses of microglial BV2 cells. Small molecular agents Fasudil and Y27632 showed prominent beneficial effects, which implies the therapeutic potential of RhoA/ROCK signaling inhibitors in AD treatment.
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Affiliation(s)
- Xiaoxu Zhang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Piao Ye
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Dandan Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Yunsheng Liu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Lan Cao
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Yancong Wang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China
| | - Yuxia Xu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China.
| | - Cuiqing Zhu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology & Institutes of Brain Science, Fudan University, 138 Yi-Xue-Yuan Road, Shanghai, 200032, China.
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5
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Mouro VGS, Menezes TP, Lima GDA, Domingues RR, Souza ACF, Oliveira JA, Matta SLP, Machado-Neves M. How Bad Is Aluminum Exposure to Reproductive Parameters in Rats? Biol Trace Elem Res 2018; 183:314-324. [PMID: 28887675 DOI: 10.1007/s12011-017-1139-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 08/21/2017] [Indexed: 10/18/2022]
Abstract
Aluminum (Al) is the most widely distributed metal in the environment and is extensively used in human daily life without any known biological function. It is known that exposure to high concentrations of Al impacts negatively on serum testosterone levels, testicular histomorphometry, and sperm parameters; however, no information is available about the effects of low exposure levels on reproduction. International organizations have established the Al concentration tolerated in drinking water as 3.35 × 10-4 mg/kg. Therefore, we aimed to compare the effects of long-term exposure to low and high concentrations of Al on male reproductive functions, focusing on testis, epididymis, and sperm parameters. Adult Wistar rats were exposed to aluminum chloride (AlCl3) at 6.7 × 10-5, 3.35 × 10-4, 10, and 40 mg/kg for 112 days by gavage. Al-exposed animals presented low values of testis and epididymis weight, and serum testosterone levels when compared to controls. The stereology of Leydig cells, epididymis histomorphometry, sperm motility, and structural integrity of sperm membranes changed depending on the Al concentration. In regard to epididymis histomorphometry, the initial segment and caput regions were more affected by Al exposure than distal regions. Otherwise, the histology of testis and epididymis did not alter after the Al exposure, as well as sperm morphology. In summary, we concluded that the consequences of Al exposure at low levels were as negative as high levels on reproductive parameters, suggesting adverse impact on male fertility.
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Affiliation(s)
- Viviane G S Mouro
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Tatiana P Menezes
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Graziela D A Lima
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Rafael R Domingues
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Ana Cláudia F Souza
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Juraci A Oliveira
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Sérgio L P Matta
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil
| | - Mariana Machado-Neves
- Department of General Biology, Federal University of Viçosa (UFV), Av. P.H. Rolfs, s/n, Campus Universitário, Viçosa, Minas Gerais, Brazil.
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6
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Huang W, Cheng P, Yu K, Han Y, Song M, Li Y. Hyperforin attenuates aluminum-induced Aβ production and Tau phosphorylation via regulating Akt/GSK-3β signaling pathway in PC12 cells. Biomed Pharmacother 2017; 96:1-6. [PMID: 28961505 DOI: 10.1016/j.biopha.2017.09.114] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/05/2017] [Accepted: 09/23/2017] [Indexed: 01/21/2023] Open
Abstract
Aluminum (Al) is a neurotoxicant and cause β-amyloid (Aβ) peptides aggregation and tau hyperphosphorylation. Hyperforin (HF) is one of the major active constituents of the extracts of St. John's Wort (Hypericum perforatum), can treat Alzheimer's disease (AD) and other diseases involving peptide accumulation and cognition impairment. To determine the effects of HF on Al-induced Aβ formation and tau hyperphosphorylation, PC12 cells were cultured and treated with Al-malt (500μM) and/or HF (1μM). The results showed that HF treatment significantly attenuated Al-malt-induced Aβ1-42 production by reducing the expressions of APP, BACE1 and PS1, while increasing the expressions of sAPPα, ADAM9/10/17, and tau phosphorylation in PC12 cells. In addition, HF treatment also increased phosphorylation of AKT (Ser473) and inhibited GSK-3β activity by increasing phosphorylation of GSK-3β (Ser9). These results indicated that HF may exert the protection via regulating the AKT/GSK-3β signaling to reduce Aβ production and tau phosphorylation in PC12 cells. Furthermore, these results could lead a possible therapeutics for the management of Al neurotoxicity.
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Affiliation(s)
- Wanyue Huang
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
| | - Ping Cheng
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
| | - Kaiyuan Yu
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
| | - Yanfei Han
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
| | - Miao Song
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
| | - Yanfei Li
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China.
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7
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Wang P, Wang ZY. Metal ions influx is a double edged sword for the pathogenesis of Alzheimer's disease. Ageing Res Rev 2017; 35:265-290. [PMID: 27829171 DOI: 10.1016/j.arr.2016.10.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 09/08/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is a common form of dementia in aged people, which is defined by two pathological characteristics: β-amyloid protein (Aβ) deposition and tau hyperphosphorylation. Although the mechanisms of AD development are still being debated, a series of evidence supports the idea that metals, such as copper, iron, zinc, magnesium and aluminium, are involved in the pathogenesis of the disease. In particular, the processes of Aβ deposition in senile plaques (SP) and the inclusion of phosphorylated tau in neurofibrillary tangles (NFTs) are markedly influenced by alterations in the homeostasis of the aforementioned metal ions. Moreover, the mechanisms of oxidative stress, synaptic plasticity, neurotoxicity, autophagy and apoptosis mediate the effects of metal ions-induced the aggregation state of Aβ and phosphorylated tau on AD development. More importantly, imbalance of these mechanisms finally caused cognitive decline in different experiment models. Collectively, reconstructing the signaling network that regulates AD progression by metal ions may provide novel insights for developing chelators specific for metal ions to combat AD.
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Affiliation(s)
- Pu Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
| | - Zhan-You Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
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Taïr K, Kharoubi O, Taïr OA, Hellal N, Benyettou I, Aoues A. Aluminium-induced acute neurotoxicity in rats: Treatment with aqueous extract of Arthrophytum (Hammada scoparia). JOURNAL OF ACUTE DISEASE 2016. [DOI: 10.1016/j.joad.2016.08.028] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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9
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Ma J, Yang Q, Wei Y, Yang Y, Ji C, Hu X, Mai S, Kuang S, Tian X, Luo Y, Liang G, Yang J. Effect of the PGD2-DP signaling pathway on primary cultured rat hippocampal neuron injury caused by aluminum overload. Sci Rep 2016; 6:24646. [PMID: 27089935 PMCID: PMC4835855 DOI: 10.1038/srep24646] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 04/01/2016] [Indexed: 12/16/2022] Open
Abstract
In the present study, the agonists and antagonists of DP receptor were used to examine whether the PGD2-DP signaling pathway affects neuronal function. Primary cultured hippocampal neuron was prepared and treated with aluminum maltolate (100 μM) to establish the neuronal damage model. PGD2 and cAMP content was detected by ELISA. L-PGDS and DPs mRNA and protein expression were measured by RT-PCR and Western blotting, respectively. The aluminium-load neuron was treated with the DP1 agonist BW245C, the DP1 antagonist BWA868C, the DP2 agonist DK-PGD2, and the DP2 antagonist CAY10471, respectively. Neuronal pathomorphology was observed using H-E staining. The cell viability and the lactate dehydrogenase leakage rates of neurons were measured with MTT and LDH kit, respectively. Ca2+ level was detected by Fluo-3/AM. In the model group, the MTT values obviously decreased; LDH leakage rates and PGD2 content increased significantly; L-PGDS, DP1 mRNA and protein expressions increased, and DP2 level decreased. BW245C reduced the Ca2+ fluorescence intensity and protected the neurons. DK-PGD2 increased the intensity of Ca2+ fluorescence, while CAY10471 had the opposite effect. In conclusion, contrary to the effect of DP2, the PGD2-DP1 signaling pathway protects against the primary cultured rat hippocampal neuronal injury caused by aluminum overload.
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Affiliation(s)
- Jie Ma
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Qunfang Yang
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Yuling Wei
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Yang Yang
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Chaonan Ji
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Xinyue Hu
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Shaoshan Mai
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Shengnan Kuang
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Xiaoyan Tian
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Ying Luo
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Guojuan Liang
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
| | - Junqing Yang
- Department of Pharmacology, Chongqing Medical University, the Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing 400016, China
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Wang X, Wang B, Li Z, Zhu G, Heng L, Zhu X, Yang Q, Ma J, Gao G. Neuroprotection effect of Y-27632 against H2O2-induced cell apoptosis of primary cultured cortical neurons. RSC Adv 2016. [DOI: 10.1039/c6ra03284b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Y-27632 protects the cortical neurons from H2O2-induced apoptosis by inhibiting oxidative stress and activation of JNK and p38 MAPKs pathways.
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Affiliation(s)
- Xingqin Wang
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Bao Wang
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Zhenzhen Li
- Department of Burns and Cutaneous Surgery
- Xijing Hospital
- Fourth Military Medical University
- Xi'an 710032
- China
| | - Gang Zhu
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Lijun Heng
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Xianke Zhu
- Department of Orthopedics
- No. 150 Central Hospital of PLA
- Luoyang
- China
| | - Qian Yang
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Jie Ma
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
| | - Guodong Gao
- Department of Neurosurgery
- Tangdu Hospital
- Fourth Military Medical University
- Xi'an 710038
- China
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Wang Z, Wei X, Yang J, Suo J, Chen J, Liu X, Zhao X. Chronic exposure to aluminum and risk of Alzheimer’s disease: A meta-analysis. Neurosci Lett 2016; 610:200-6. [DOI: 10.1016/j.neulet.2015.11.014] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/06/2015] [Accepted: 11/10/2015] [Indexed: 02/06/2023]
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12
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Liu J, Gao HY, Wang XF. The role of the Rho/ROCK signaling pathway in inhibiting axonal regeneration in the central nervous system. Neural Regen Res 2015; 10:1892-6. [PMID: 26807132 PMCID: PMC4705809 DOI: 10.4103/1673-5374.170325] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The Rho/Rho-associated coiled-coil containing protein kinase (Rho/ROCK) pathway is a major signaling pathway in the central nervous system, transducing inhibitory signals to block regeneration. After central nervous system damage, the main cause of impaired regeneration is the presence of factors that strongly inhibit regeneration in the surrounding microenvironment. These factors signal through the Rho/ROCK signaling pathway to inhibit regeneration. Therefore, a thorough understanding of the Rho/ROCK signaling pathway is crucial for advancing studies on regeneration and repair of the injured central nervous system.
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Affiliation(s)
- Jing Liu
- Department of Neonatology & NICU of Bayi Children's Hospital, General Hospital of Beijing Military Command of Chinese PLA, Beijing, China
- Correspondence to: Jing Liu, .
| | - Hong-yan Gao
- Department of Neonatology & NICU of Bayi Children's Hospital, General Hospital of Beijing Military Command of Chinese PLA, Beijing, China
| | - Xiao-feng Wang
- Department of Neonatology & NICU of Bayi Children's Hospital, General Hospital of Beijing Military Command of Chinese PLA, Beijing, China
- Department of Neonatology, People's Hospital of Rizhao, Rizhao, Shangdong Province, China
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Liu Y, Yang X, Lei Q, Li Z, Hu J, Wen X, Wang H, Liu Z. PEG-PEI/siROCK2 Protects Against Aβ42-Induced Neurotoxicity in Primary Neuron Cells for Alzheimer Disease. Cell Mol Neurobiol 2015; 35:841-8. [PMID: 25776136 DOI: 10.1007/s10571-015-0178-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/10/2015] [Indexed: 12/21/2022]
Abstract
Gene therapy that targets the ROCK2 gene has yielded promising results in the treatment of AD. Our previous study indicated that PEG-PEI/siROCK2 could effectively suppress ROCK2 mRNA expression and showed a promising prospect for the treatment of Alzheimer's disease. However, the ability of PEG-PEI/siROCK2 to reduce Aβ-induced cytotoxicity is unknown. To investigate the effect of PEG-PEI/siROCK2 against Aβ42-induced neurotoxicity, primary cultured cortical neurons were pretreated with PEG-PEI/siROCK2 for 24 h and then treated with 5 μM Aβ42 for 24 h. We found that PEG-PEI/siROCK2 increased the cell viability and reduced the number of apoptotic cells induced by Aβ42, as measured using an MTT assay and Annexin V/PI staining. A further study revealed that PEG-PEI/siROCK2 can activate p-Akt, and treatment with the PI3K inhibitor LY294002 attenuated the neuroprotective effects. These results suggest that PEG-PEI/siROCK2 prevents Aβ42-induced neurotoxicity and that the activation of PI3K/Akt pathway is involved in neuroprotection. Taken together, these findings shed light on the role of PEG-PEI/siROCK2 as a potential therapeutic agent for AD.
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Affiliation(s)
- Yunyun Liu
- Department of Neurology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
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14
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Jinzhu Y, Qinli Z, Jin Y, Pan K, Jianjun H, Qiao N. Aluminum and benzo[a]pyrene co-operate to induce neuronal apoptosis in vitro . J Toxicol Sci 2015; 40:365-73. [PMID: 25971159 DOI: 10.2131/jts.40.365] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Yin Jinzhu
- Department of Occupational Health, Institute of Preventive Medicine, Shanxi Medical University, China
- Department of Neurosurgery, Datong Coal Mine General Hospital, China
| | - Zhang Qinli
- Department of Occupational Health, Institute of Preventive Medicine, Shanxi Medical University, China
| | - Yang Jin
- Department of Occupational Health, Institute of Preventive Medicine, Shanxi Medical University, China
| | - Kang Pan
- Department of Occupational Health, Institute of Preventive Medicine, Shanxi Medical University, China
| | - Huang Jianjun
- Department of Neurosurgery, Datong Coal Mine General Hospital, China
| | - Niu Qiao
- Department of Occupational Health, Institute of Preventive Medicine, Shanxi Medical University, China
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15
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Stankiewicz TR, Linseman DA. Rho family GTPases: key players in neuronal development, neuronal survival, and neurodegeneration. Front Cell Neurosci 2014; 8:314. [PMID: 25339865 PMCID: PMC4187614 DOI: 10.3389/fncel.2014.00314] [Citation(s) in RCA: 281] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 09/18/2014] [Indexed: 12/11/2022] Open
Abstract
The Rho family of GTPases belongs to the Ras superfamily of low molecular weight (∼21 kDa) guanine nucleotide binding proteins. The most extensively studied members are RhoA, Rac1, and Cdc42. In the last few decades, studies have demonstrated that Rho family GTPases are important regulatory molecules that link surface receptors to the organization of the actin and microtubule cytoskeletons. Indeed, Rho GTPases mediate many diverse critical cellular processes, such as gene transcription, cell–cell adhesion, and cell cycle progression. However, Rho GTPases also play an essential role in regulating neuronal morphology. In particular, Rho GTPases regulate dendritic arborization, spine morphogenesis, growth cone development, and axon guidance. In addition, more recent efforts have underscored an important function for Rho GTPases in regulating neuronal survival and death. Interestingly, Rho GTPases can exert either a pro-survival or pro-death signal in neurons depending upon both the cell type and neurotoxic insult involved. This review summarizes key findings delineating the involvement of Rho GTPases and their effectors in the regulation of neuronal survival and death. Collectively, these results suggest that dysregulation of Rho family GTPases may potentially underscore the etiology of some forms of neurodegenerative disease such as amyotrophic lateral sclerosis.
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Affiliation(s)
- Trisha R Stankiewicz
- Research Service, Veterans Affairs Medical Center Denver, CO, USA ; Department of Biological Sciences and Eleanor Roosevelt Institute, University of Denver Denver, CO, USA
| | - Daniel A Linseman
- Research Service, Veterans Affairs Medical Center Denver, CO, USA ; Department of Biological Sciences and Eleanor Roosevelt Institute, University of Denver Denver, CO, USA ; Division of Clinical Pharmacology and Toxicology, Department of Medicine and Neuroscience Program, University of Colorado Denver Aurora, CO, USA
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16
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Willhite CC, Karyakina NA, Yokel RA, Yenugadhati N, Wisniewski TM, Arnold IMF, Momoli F, Krewski D. Systematic review of potential health risks posed by pharmaceutical, occupational and consumer exposures to metallic and nanoscale aluminum, aluminum oxides, aluminum hydroxide and its soluble salts. Crit Rev Toxicol 2014; 44 Suppl 4:1-80. [PMID: 25233067 PMCID: PMC4997813 DOI: 10.3109/10408444.2014.934439] [Citation(s) in RCA: 239] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract Aluminum (Al) is a ubiquitous substance encountered both naturally (as the third most abundant element) and intentionally (used in water, foods, pharmaceuticals, and vaccines); it is also present in ambient and occupational airborne particulates. Existing data underscore the importance of Al physical and chemical forms in relation to its uptake, accumulation, and systemic bioavailability. The present review represents a systematic examination of the peer-reviewed literature on the adverse health effects of Al materials published since a previous critical evaluation compiled by Krewski et al. (2007) . Challenges encountered in carrying out the present review reflected the experimental use of different physical and chemical Al forms, different routes of administration, and different target organs in relation to the magnitude, frequency, and duration of exposure. Wide variations in diet can result in Al intakes that are often higher than the World Health Organization provisional tolerable weekly intake (PTWI), which is based on studies with Al citrate. Comparing daily dietary Al exposures on the basis of "total Al"assumes that gastrointestinal bioavailability for all dietary Al forms is equivalent to that for Al citrate, an approach that requires validation. Current occupational exposure limits (OELs) for identical Al substances vary as much as 15-fold. The toxicity of different Al forms depends in large measure on their physical behavior and relative solubility in water. The toxicity of soluble Al forms depends upon the delivered dose of Al(+3) to target tissues. Trivalent Al reacts with water to produce bidentate superoxide coordination spheres [Al(O2)(H2O4)(+2) and Al(H2O)6 (+3)] that after complexation with O2(•-), generate Al superoxides [Al(O2(•))](H2O5)](+2). Semireduced AlO2(•) radicals deplete mitochondrial Fe and promote generation of H2O2, O2 (•-) and OH(•). Thus, it is the Al(+3)-induced formation of oxygen radicals that accounts for the oxidative damage that leads to intrinsic apoptosis. In contrast, the toxicity of the insoluble Al oxides depends primarily on their behavior as particulates. Aluminum has been held responsible for human morbidity and mortality, but there is no consistent and convincing evidence to associate the Al found in food and drinking water at the doses and chemical forms presently consumed by people living in North America and Western Europe with increased risk for Alzheimer's disease (AD). Neither is there clear evidence to show use of Al-containing underarm antiperspirants or cosmetics increases the risk of AD or breast cancer. Metallic Al, its oxides, and common Al salts have not been shown to be either genotoxic or carcinogenic. Aluminum exposures during neonatal and pediatric parenteral nutrition (PN) can impair bone mineralization and delay neurological development. Adverse effects to vaccines with Al adjuvants have occurred; however, recent controlled trials found that the immunologic response to certain vaccines with Al adjuvants was no greater, and in some cases less than, that after identical vaccination without Al adjuvants. The scientific literature on the adverse health effects of Al is extensive. Health risk assessments for Al must take into account individual co-factors (e.g., age, renal function, diet, gastric pH). Conclusions from the current review point to the need for refinement of the PTWI, reduction of Al contamination in PN solutions, justification for routine addition of Al to vaccines, and harmonization of OELs for Al substances.
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Affiliation(s)
- Calvin C. Willhite
- Risk Sciences International, Ottawa, ON, Canada
- McLaughlin Centre for Population Health Risk Assessment, Ottawa, ON, Canada
| | | | - Robert A. Yokel
- Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky, USA
| | | | - Thomas M. Wisniewski
- Departments of Neurology, Psychiatry and Pathology, New York University School of Medicine, New York City, New York, USA
| | - Ian M. F. Arnold
- Occupational Health Program, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Franco Momoli
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada
| | - Daniel Krewski
- Risk Sciences International, Ottawa, ON, Canada
- McLaughlin Centre for Population Health Risk Assessment, Ottawa, ON, Canada
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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17
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Zhang L, Jin C, Lu X, Yang J, Wu S, Liu Q, Chen R, Bai C, Zhang D, Zheng L, Du Y, Cai Y. Aluminium chloride impairs long-term memory and downregulates cAMP-PKA-CREB signalling in rats. Toxicology 2014; 323:95-108. [DOI: 10.1016/j.tox.2014.06.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 12/19/2022]
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18
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Allagui M, Feriani A, Saoudi M, Badraoui R, Bouoni Z, Nciri R, Murat J, Elfeki A. Effects of melatonin on aluminium-induced neurobehavioral and neurochemical changes in aging rats. Food Chem Toxicol 2014; 70:84-93. [DOI: 10.1016/j.fct.2014.03.043] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/22/2014] [Accepted: 03/28/2014] [Indexed: 12/19/2022]
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19
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Wang L, Hu J, Zhao Y, Lu X, Zhang Q, Niu Q. Effects of aluminium on β-amyloid (1-42) and secretases (APP-cleaving enzymes) in rat brain. Neurochem Res 2014; 39:1338-45. [PMID: 24792732 DOI: 10.1007/s11064-014-1317-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 04/16/2014] [Accepted: 04/21/2014] [Indexed: 01/22/2023]
Abstract
Chronic administration of aluminium has been proposed as an environmental factor that may affect some pathological changes related to neurotoxicity and Alzheimer's disease (AD). The abnormal generation and deposition of β-amyloid (Aβ) in senile plaques are hallmark features in the brains of AD patients. Furthermore, Aβ is generated by the sequential cleavage of the amyloid precursor protein (APP) via the APP cleaving enzyme (α-secretase, or β-secretase) and γ-secretase. In the present study, we investigated the modulation of Aβ deposition and neurotoxicity in aluminium-maltolate-treated (0, 15, 30, 45 mmol/kg body weight via intraperitoneal injection) in experimental rats. We measured Aβ1-40 and Aβ1-42 in the cortex and hippocampus in rat brains using ELISA. Subtypes of α-secretase, β-secretase, and γ-secretase, including ADAM9, ADAM10, ADAM17 (TACE), BACE1, presenilin 1 (PS1) and nicastrin (NCT), were determined using western blotting analyses. These results indicated that aluminium-maltolate induced an AD-like behavioural deficit in rats at 30 and 45 mmol/kg body weight. Moreover, the Aβ1-42 content increased significantly, both in the cortex and hippocampus, although no changes were observed in Aβ1-40. Furthermore, ADAM9, ADAM10, and ADAM17 decreased significantly; in contrast, BACE1, PS1, and NCT showed significant increase. Taken together, these results suggest that the changes in secretases may correlate to the abnormal deposition of Aβ by aluminium in rat brains.
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Affiliation(s)
- Linping Wang
- School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
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20
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Anti‐amnestic properties of Ginkgo biloba extract on impaired memory function induced by aluminum in rats. Int J Dev Neurosci 2013; 31:598-607. [DOI: 10.1016/j.ijdevneu.2013.07.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 07/13/2013] [Accepted: 07/31/2013] [Indexed: 01/19/2023] Open
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21
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Fisetin enhances behavioral performances and attenuates reactive gliosis and inflammation during aluminum chloride-induced neurotoxicity. Neuromolecular Med 2013; 15:192-208. [PMID: 23315010 DOI: 10.1007/s12017-012-8210-1] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 11/29/2012] [Indexed: 10/27/2022]
Abstract
Aluminum (Al) is an environmental neurotoxin that affects cerebral functions and causes health complications. However, the role of Al in arbitrating glia homeostasis and pathophysiology remains obscure. Astrocyte, microglia activation (reactive gliosis), and associated inflammatory events play a decisive role in neurodegeneration and may represent a target for treating neurodegenerative disorders. In this study, we have analyzed the role of aluminum chloride (AlCl3) in causing reactive gliosis in the brain of mice and the ability of fisetin, a flavonoid to attenuate reactive gliosis and neuronal inflammation. Reports suggest that fisetin exerts antioxidant and anti-inflammatory actions. Fisetin at a dose of 15 mg/kg body weight was orally administered, daily (pre-treated for 4 weeks before AlCl3 induction and co-treated until experimental period of 8 weeks) to mice induced with AlCl3 (200 mg/kg b.wt./day/8 weeks, orally). Administration of AlCl3 developed behavioral deficits, triggered lipid peroxidation (LPO), compromised acetylcholine esterase (AChE) activity, and reduced the levels of superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), and reduced glutathione (GSH), and caused histologic aberrations. These effects were accompanied by increased expressions of Glial fibrillary acidic protein and ionized calcium-binding adapter molecule 1. Pro-inflammatory cytokines, such as tumor necrosis factor alpha, interleukin-1β, inducible nitric oxide synthase, were increased upon AlCl3 administration. AlCl3-induced alterations in the activities of SOD, CAT, GST, AChE and levels of GSH, LPO, activity of AChE, behavioral deficits, histologic aberrations, reactive gliosis, and inflammatory niche were attenuated on treatment with fisetin. Collectively, our results indicate that fisetin exerts neuroprotection against AlCl3-induced brain pathology.
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22
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Rawi SM, Seif Al Nassr FM. Zinc sulphate and vitamin E alleviate reproductive toxicity caused by aluminium sulphate in male albino rats. Toxicol Ind Health 2013; 31:221-34. [PMID: 23282999 DOI: 10.1177/0748233712469650] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study was designed to investigate the reproductive toxicity of aluminium sulphate and the therapeutic effects of administration of zinc sulphate and vitamin E individually or in combination against the toxic effect caused by aluminium (Al) in male albino rats. The animals were divided into five groups: group 1 received distilled water and served as control; group 2 received only aluminium sulphate (50 mg/kg body weight (b.w.)); group 3 received aluminium sulphate (50 mg/kg b.w.) plus zinc sulphate (50 mg/kg b.w.); group 4 received aluminium sulphate (50 mg/kg b.w.) and vitamin E (15 mg/kg b.w.); group 5 received aluminium sulphate plus a combination of zinc sulphate and vitamin E in similar doses as above. Doses were administered orally once daily for 45 consecutive days. The results revealed that aluminium sulphate induced significant decrease in body weight gain and testis weight and significant increase in Al level in both serum and testes of male rats. Biochemical analysis showed significant decrease in serum total protein and phospholipids levels, while serum total lipid was significantly elevated post Al treatment. In addition, significant decrease in total protein, phospholipids and cholesterol levels in the testes of Al-treated rats was recorded. The data also showed significant decrease in the levels of serum testosterone, leutinizing hormone and follicle stimulating hormone and significant increase in the level of serum prolactin in Al-intoxicated rats. Moreover, histological examination showed that aluminium sulphate caused apparent alterations in the testicular structure of the treated animals. Treatment with zinc sulphate and vitamin E individually or in combination ameliorated the harmful effects of Al, which was proved histopathologically by the noticeable improvement in the testicular tissues. We can conclude that the tested dose of aluminium sulphate induced toxic effect on the reproductive system of male albino rats and the treatment with zinc sulphate and/or vitamin E alleviated these toxic effects. In some cases, vitamin E exerted a more potent effect, while in other cases, the more potent effect is related to zinc sulphate and the combination of both at most of the recorded data.
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Affiliation(s)
- Sayed M Rawi
- Faculty of Science and Arts, King Abdul Aziz University, Khulais, Kingdom of Saudi Arabia
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23
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Zhang L, Jin C, Liu Q, Lu X, Wu S, Yang J, Du Y, Zheng L, Cai Y. Effects of subchronic aluminum exposure on spatial memory, ultrastructure and L-LTP of hippocampus in rats. J Toxicol Sci 2013; 38:255-68. [DOI: 10.2131/jts.38.255] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Lifeng Zhang
- Heping District Center for Disease Control and Prevention,China
- Department of Toxicology, School of Public Health, China Medical University, China
- Department of Occupational and Environmental Health, School of Public Health, China Medical University, China
| | - Cuihong Jin
- Department of Toxicology, School of Public Health, China Medical University, China
| | - Qiufang Liu
- Department of Toxicology, School of Public Health, China Medical University, China
| | - Xiaobo Lu
- Department of Toxicology, School of Public Health, China Medical University, China
| | - Shengwen Wu
- Department of Toxicology, School of Public Health, China Medical University, China
| | - Jinghua Yang
- Department of Toxicology, School of Public Health, China Medical University, China
| | - Yanqiu Du
- 9th People’s Hospital of Shenyang, China
| | - Linlin Zheng
- Medical college, Eastern Liaoning University, China
| | - Yuan Cai
- Department of Occupational and Environmental Health, School of Public Health, China Medical University, China
- Department of Toxicology, School of Public Health, China Medical University, China
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Nonlethal aluminum maltolate can reduce brain-derived neurotrophic factor-induced Arc expression through interrupting the ERK signaling in SH-SY5Y neuroblastoma cells. Toxicol Lett 2011; 200:67-76. [DOI: 10.1016/j.toxlet.2010.10.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 10/22/2010] [Accepted: 10/25/2010] [Indexed: 11/20/2022]
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