1
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Guglielmi MV, Mastrodonato M, Semeraro D, Mentino D, Capriello T, La Pietra A, Giarra A, Scillitani G, Ferrandino I. Aluminum exposure alters the pedal mucous secretions of the chocolate-band snail, Eobania vermiculata (Gastropoda: Helicidae). Microsc Res Tech 2024; 87:1453-1466. [PMID: 38407429 DOI: 10.1002/jemt.24529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/09/2024] [Accepted: 02/10/2024] [Indexed: 02/27/2024]
Abstract
Aluminum (Al) is used in everyday life and present in food drugs, packaging, industry, and agriculture. Although it is the most common metal in the Earth crust, a correlation has been demonstrated between its presence and various pathologies, even serious ones, especially of a neurological type. However, there is a histological gap regarding the role Al can have in contact with the covering and secreting epithelia. The alterations of the ventral and dorsal foot mucocytes and their secretions of the snail Eobania vermiculata caused by Al were investigated in situ by histochemical and lectin-histochemical techniques. Administration to different experimental groups took place for 3 and 9 days with 50 and 200 μM of AlCl3. Several types of mucocytes were detected with a prevalent secretion of acid glycans in the foot of E. vermiculata. Sulfated glycans prevail in the dorsal region, with one type showing only fucosylated residues and another also having galactosaminylated and glycosaminylated residues. Carboxylated glycans prevail in the ventral region, with presence of galactosaminylated, glycosaminylated, and fucosylated residuals in both cells. Snails treated presented a general decrease of mucin amount in the secreting cells and affected the mucus composition. These changes could alter the rheological and functional properties of the mucus with possible implications for the health of the treated animals. RESEARCH HIGHLIGHTS: Snails were fed with Al-contaminated lettuce at different concentrations. In the foot mucocytes produced mucus with prevailing acidic glycans. In the treated resulted a reduction in the amount of mucus and an alteration of glycan composition.
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Affiliation(s)
- Marco Vito Guglielmi
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Maria Mastrodonato
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Daniela Semeraro
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Donatella Mentino
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Teresa Capriello
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | | | - Antonella Giarra
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy
| | - Giovanni Scillitani
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Ida Ferrandino
- Department of Biology, University of Naples "Federico II", Naples, Italy
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2
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Patwa J, Flora SJS. Copper: From enigma to therapeutic target for neurological disorder. Basic Clin Pharmacol Toxicol 2024; 134:778-791. [PMID: 38622813 DOI: 10.1111/bcpt.14010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/17/2024]
Abstract
Neurological disorders (NDs) have a negative impact on the lives of individuals. There could be two explanations for this: unclear aetiology and lack of effective therapy. However, research in the past few years has revealed the role of bio-metals dyshomeostasis in NDs. The imbalance in copper (Cu) concentration may be one of the main causative factors in NDs. In this review, we have discussed the role of Cu in NDs, especially Alzheimer's disease (AD), including the molecular mechanisms involved in Cu-associated NDs like oxidative stress, neuroinflammation, and protein misfolding. We have also summarized the recent Cu-targeting approaches and highlighted the in vitro and in vivo studies recently being reported on the subject. Based on the earlier published reports, it could be speculated that the Cu targeting strategy might be an interesting and potential therapeutic approach for NDs. Various difficulties must be overcome to develop safe and efficient Cu-targeting medications for NDs.
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Affiliation(s)
- Jayant Patwa
- Department of Pharmaceutical Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Garhwal, Uttarakhand, India
| | - Swaran Jeet Singh Flora
- Era College of Pharmaceuticals, Era Lucknow Medical University, Lucknow, Uttar Pradesh, India
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3
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Mishra S, Stany B, Das A, Kanagavel D, Vijayan M. A Comprehensive Review of Membrane Transporters and MicroRNA Regulation in Alzheimer's Disease. Mol Neurobiol 2024:10.1007/s12035-024-04135-2. [PMID: 38558361 DOI: 10.1007/s12035-024-04135-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/15/2024] [Indexed: 04/04/2024]
Abstract
Alzheimer's disease (AD) is a distressing neurodegenerative condition characterized by the accumulation of amyloid-beta (Aβ) plaques and tau tangles within the brain. The interconnectedness between membrane transporters (SLCs) and microRNAs (miRNAs) in AD pathogenesis has gained increasing attention. This review explores the localization, substrates, and functions of SLC transporters in the brain, emphasizing the roles of transporters for glutamate, glucose, nucleosides, and other essential compounds. The examination delves into the significance of SLCs in AD, their potential for drug development, and the intricate realm of miRNAs, encompassing their transcription, processing, functions, and regulation. MiRNAs have emerged as significant players in AD, including those associated with mitochondria and synapses. Furthermore, this review discusses the intriguing nexus of miRNAs targeting SLC transporters and their potential as therapeutic targets in AD. Finally, the review underscores the interaction between SLC transporters and miRNA regulation within the context of Alzheimer's disease, underscoring the need for further research in this area. This comprehensive review aims to shed light on the complex mechanisms underlying the causation of AD and provides insights into potential therapeutic approaches.
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Affiliation(s)
- Shatakshi Mishra
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - B Stany
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Anushka Das
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Deepankumar Kanagavel
- School of Biosciences and Technology, Department of Biotechnology, VIT University, Vellore, Tamil Nadu, 632014, India.
| | - Murali Vijayan
- Department of Internal Medicine, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX, 79430, USA.
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4
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Demirel G, Sanajou S, Yirün A, Çakir DA, Berkkan A, Baydar T, Erkekoğlu P. Evaluation of possible neuroprotective effects of virgin coconut oil on aluminum-induced neurotoxicity in an in vitro Alzheimer's disease model. J Appl Toxicol 2024; 44:609-622. [PMID: 37989595 DOI: 10.1002/jat.4564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/23/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurological disorder that affects various cognitive functions, behavior, and personality. AD is thought to be caused by a combination of genetic and environmental factors, including exposure to aluminum (Al). Virgin coconut oil (VCO) may have potential as a natural neuroprotectant against AD. Aim of this study was to determine neuroprotective effects of VCO on Al-induced neurotoxicity in an in vitro AD model. SH-SY5Y cells were initially cultured in normal growth medium and then differentiated by reducing fetal bovine serum content and adding retinoic acid (RA). Later, brain-derived neurotrophic factor (BDNF) was added along with RA. The differentiation process was completed on the seventh day. Study groups (n = 3) were designed as control group, VCO group, Al group, Al-VCO group, Alzheimer model (AD) group, AD + Al-exposed group (AD+Al), AD + VCO applied group (AD + VCO) and AD + Al-exposed + VCO applied group (AD + Al + VCO). Specific markers of AD (hyperphosphorylated Tau protein, amyloid beta 1-40 peptide, and amyloid precursor protein) were measured in all groups. In addition, oxidative stress parameters (total antioxidant capacity, lipid peroxidase, protein carbonyl, and reactive oxygen species) and neurotransmitter-related parameters (dopamine, dopamine transporter acetylcholine, and synuclein alpha levels, acetylcholinesterase activity) were measured comparatively in the study groups. VCO reduced amyloid beta and hyperphosphorylated Tau protein levels in the study groups. In addition, oxidative stress levels decreased, and neurotransmitter parameters improved with VCO. Our study shows that VCO may have potential therapeutic effects in Alzheimer's disease and further experiments are needed to determine its efficacy.
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Affiliation(s)
- Göksun Demirel
- Faculty of Pharmacy, Department of Toxicology, Cukurova University, Adana, Turkey
- Institute of Addiction and Forensic Sciences, Department of Forensic Sciences, Cukurova University, Adana, Turkey
| | - Sonia Sanajou
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
| | - Anil Yirün
- Faculty of Pharmacy, Department of Toxicology, Cukurova University, Adana, Turkey
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
| | - Deniz Arca Çakir
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
- Vaccine Institute, Department of Vaccine Technology, Hacettepe University, Ankara, Turkey
| | - Aysel Berkkan
- Faculty of Pharmacy, Department of Analytical Chemistry, Gazi University, Ankara, Turkey
| | - Terken Baydar
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
| | - Pinar Erkekoğlu
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, Ankara, Turkey
- Vaccine Institute, Department of Vaccine Technology, Hacettepe University, Ankara, Turkey
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5
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Wasick A, Kim Y. Association between the Composition of Drinking Water and Cognitive Function in the Elderly: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:362. [PMID: 38541362 PMCID: PMC10969896 DOI: 10.3390/ijerph21030362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/06/2024] [Accepted: 03/15/2024] [Indexed: 04/05/2024]
Abstract
The prevalence of dementia increases with nearly 10 million new cases each year, with Alzheimer's disease contributing to 60-70% of cases. Environmental factors such as drinking water have been evaluated to determine if a relationship exists between trace elements in drinking water and the risk of developing cognitive disorders in the elderly. The purpose of the current systematic review was to evaluate an association between the composition of drinking water and cognitive function in the elderly. In accordance with the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines, a literature search was conducted using PubMed and CINAHL databases. A total of 10 studies were included in the current systematic review. Aluminum is the most commonly evaluated trace element in studies (n = 8), followed by silica (n = 5), calcium (n = 4), and fluoride (n = 4). Aluminum exposure showed an increased risk of cognitive decline in four studies, with no association reported in the other studies. Higher silica and pH levels were shown to be protective against a decline in cognitive function. A similar protective effect of calcium was found in two studies. Future research should measure multiple trace mineral levels in all water sources to evaluate the impact on cognitive function.
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Affiliation(s)
| | - Yeonsoo Kim
- Nutrition and Dietetics Program, Central Michigan University, 1200 South Franklin Street, Mt. Pleasant, MI 48859, USA;
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Zhang Z, Li X, Ma L, Wang S, Zhang J, Zhou Y, Guo X, Niu Q. LNC000152 Mediates Aluminum-Induced Proliferation of Reactive Astrocytes. ACS OMEGA 2024; 9:11958-11968. [PMID: 38496998 PMCID: PMC10938322 DOI: 10.1021/acsomega.3c09702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 03/19/2024]
Abstract
Aluminum is a metal element with significant neurotoxicity, and there is a substantial correlation between aluminum exposure and cognitive dysfunction. Glial fibrillary acidic protein (GFAP) is widely used as a marker of reactive astrocyte proliferation in response to pathological injury of the central nervous system. Studies of various neurodegenerative diseases have confirmed that the expression changes in GFAP are associated with nerve injury. We investigated the role of LNC000152 in the aluminum-induced reactive proliferation of astrocytes. By establishing two aluminum-exposed cell models of rat primary astrocytes and CTX-TNA2 cell lines, we examined the expression of LNC000152 and GFAP and detected cell proliferation with EdU and cell cycle changes with flow cytometry. The role of aluminum in promoting glial cell proliferation was verified; the expression levels of LNC000152 and GFAP increased with the concentration of aluminum exposure. Intervention of LNC000152 expression by siRNA technology revealed that LNC000152 affected glial cell responsive proliferation by influencing GFAP expression. These results suggest that LNC000152 plays a role in the reactive proliferation of astrocytes induced by aluminum.
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Affiliation(s)
- Zhuoran Zhang
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Xiaoyan Li
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Limin Ma
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Shanshan Wang
- Section
of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Jingsi Zhang
- Section
of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Yue Zhou
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Xin Guo
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Qiao Niu
- Department
of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi, China
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7
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Ribeiro J, Araújo-Silva H, Fernandes M, da Silva JA, Pinto FDCL, Pessoa ODL, Santos HS, de Menezes JESA, Gomes AC. Petrosamine isolated from marine sponge Petrosia sp. demonstrates protection against neurotoxicity in vitro and in vivo. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:16. [PMID: 38383833 PMCID: PMC10881933 DOI: 10.1007/s13659-024-00439-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
According to The World Alzheimer Report 2023 by Alzheimer's Disease International (ADI) estimates that 33 to 38.5 million people worldwide suffer from Alzheimer's Disease (AD). A crucial hallmark associated with this disease is associated with the deficiency of the brain neurotransmitter acetylcholine, due to an affected acetylcholinesterase (AChE) activity. Marine organisms synthesize several classes of compounds, some of which exhibit significant AChE inhibition, such as petrosamine, a coloured pyridoacridine alkaloid. The aim of this work was to characterize the activity of petrosamine isolated for the first time from a Brazilian marine sponge, using two neurotoxicity models with aluminium chloride, as exposure to aluminium is associated with the development of neurodegenerative diseases. The in vitro model was based in a neuroblastoma cell line and the in vivo model exploited the potential of zebrafish (Danio rerio) embryos in mimicking hallmarks of AD. To our knowledge, this is the first report on petrosamine's activity over these parameters, either in vitro or in vivo, in order to characterize its full potential for tackling neurotoxicity.
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Affiliation(s)
- Joana Ribeiro
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Henrique Araújo-Silva
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Mário Fernandes
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Joilna Alves da Silva
- Program in Natural Sciences, Natural Products Chemistry Laboratory, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Francisco das Chagas L Pinto
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Otília Deusdenia L Pessoa
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Hélcio Silva Santos
- Program in Natural Sciences, Natural Products Chemistry Laboratory, State University of Ceará, Fortaleza, Ceará, Brazil
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Andreia C Gomes
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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8
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Sanajou S, Yirün A, Arca Çakır D, Demirel G, Şahin G, Erkekoğlu P, Baydar T. Unraveling the neuroprotective mechanisms of naltrexone against aluminum-induced neurotoxicity. Drug Chem Toxicol 2024:1-12. [PMID: 38221775 DOI: 10.1080/01480545.2024.2303975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 01/03/2024] [Indexed: 01/16/2024]
Abstract
Aluminum (Al) is a known neurotoxic trace element linked to Alzheimer's disease (AD). Naltrexone, an opioid antagonist, has shown promising effects in reducing neuroinflammation at lower doses than those prescribed for addiction. This study aimed to determine the neuroprotective effects of naltrexone on Al-induced neurotoxicity in an in vitro AD model. The SH-SY5Y cells were first cultivated in a standard growth medium. Subsequently, the cells were induced to differentiate by decreasing the concentration of fetal bovine serum and introducing retinoic acid (RA) into the culture media. Subsequently, the inclusion of brain-derived neurotrophic factor (BDNF) was implemented in conjunction with RA. The process of differentiation was concluded on the seventh day. Study groups (n = 3) were designed as the control group, naltrexone group, Al group, Al-Nal group, Alzheimer' model (AD) group, Alzheimer model + Al-exposed group (AD-Al), Alzheimer model + Nal applied group (AD-Nal) and Alzheimer model + Al-exposed + Nal applied group (AD-Al-Nal). Hyperphosphorylated Tau protein as the specific marker of AD was measured in all groups. Glycogen synthase kinase-3 (GSK-3)β, Protein phosphatase 2A (PP2A), Akt and Wnt signaling pathways were analyzed comparatively. In addition, oxidative stress parameters (total antioxidant capacity, lipid peroxidase, protein carbonyl and reactive oxygen species) were measured comparatively in the study groups. The results showed that naltrexone reduced hyperphosphorylated tau protein levels by regulating GSK-3β, PP2A, Akt and Wnt signaling. Also, exposure to naltrexone decreased oxidative stress parameters. Based on these results, naltrexone shows promise as a potential therapy for AD, subject to additional clinical assessments.
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Affiliation(s)
- Sonia Sanajou
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Anil Yirün
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Toxicology, Faculty of Pharmacy, Çukurova University, Adana, Turkey
| | - Deniz Arca Çakır
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Vaccine Technology, Hacettepe University, Vaccine Institute, Ankara, Turkey
| | - Göksun Demirel
- Department of Toxicology, Faculty of Pharmacy, Çukurova University, Adana, Turkey
| | - Gönül Şahin
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Pinar Erkekoğlu
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
- Department of Vaccine Technology, Hacettepe University, Vaccine Institute, Ankara, Turkey
| | - Terken Baydar
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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Singh YP, Kumar N, Chauhan BS, Garg P. Carbamate as a potential anti-Alzheimer's pharmacophore: A review. Drug Dev Res 2023; 84:1624-1651. [PMID: 37694498 DOI: 10.1002/ddr.22113] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/20/2023] [Accepted: 08/30/2023] [Indexed: 09/12/2023]
Abstract
Alzheimer's disease (AD) is a progressive age-related neurodegenerative brain disorder, which leads to loss of memory and other cognitive dysfunction. The underlying mechanisms of AD pathogenesis are very complex and still not fully explored. Cholinergic neuronal loss, accumulation of amyloid plaque, metal ions dyshomeostasis, tau hyperphosphorylation, oxidative stress, neuroinflammation, and mitochondrial dysfunction are major hallmarks of AD. The current treatment options for AD are acetylcholinesterase inhibitors (donepezil, rivastigmine, and galantamine) and NMDA receptor antagonists (memantine). These FDA-approved drugs mainly provide symptomatic relief without addressing the pathological aspects of disease progression. So, there is an urgent need for novel drug development that not only addresses the basic mechanisms of the disease but also shows the neuroprotective property. Various research groups across the globe are working on the development of multifunctional agents for AD amelioration using different core scaffolds for their design, and carbamate is among them. Rivastigmine was the first carbamate drug investigated for AD management. The carbamate fragment, a core scaffold of rivastigmine, act as a potential inhibitor of acetylcholinesterase. In this review, we summarize the last 10 years of research conducted on the modification of carbamate with different substituents which primarily target ChE inhibition, reduce oxidative stress, and modulate Aβ aggregation.
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Affiliation(s)
- Yash Pal Singh
- Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Navneet Kumar
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | | | - Prabha Garg
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
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Abdelghany AK, Gamal A, Abdel-Wahab A, Abdel-Razik ARH, El-Samannoudy S, Ibrahim MA, Hassan WH, El-Ela FIA. RETRACTED ARTICLE: Evaluating the neuroprotective effect of Spirulina platensis-loaded niosomes against Alzheimer's disease induced in rats. Drug Deliv Transl Res 2023; 13:2690. [PMID: 36790720 PMCID: PMC10468951 DOI: 10.1007/s13346-023-01301-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 02/16/2023]
Affiliation(s)
- Asmaa K. Abdelghany
- Animal and Poultry Management and Wealth Development Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Amr Gamal
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed Abdel-Wahab
- Department of Physiology, Faculty of Veterinary Medicine, Minia University, El-Minia, Egypt
| | - Abdel-Razik H. Abdel-Razik
- Department of Histopathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | | | - Marwa A. Ibrahim
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211 Egypt
| | - Walid Hamdy Hassan
- Department of Microbiology Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Fatma I. Abo El-Ela
- Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
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Oyama H, Nabeshima Y, Morimoto K, Sugimura Y. Characterization of proteinous coagulant in Moringa tree seeds for water purification: Stepwise laboratory exercise for high-school students. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2023; 51:588-599. [PMID: 37357998 DOI: 10.1002/bmb.21763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 05/29/2023] [Accepted: 06/12/2023] [Indexed: 06/27/2023]
Abstract
Coagulation is an important process in the context of water purification; and the seed protein of the moringa tree (Moringa oleifera) is a remarkably effective coagulant. The laboratory course described here is designed to provide high-school students with a stepwise, hands-on experience in investigating the protein-rich coagulant found in Moringa seeds. First, the seed powder was applied to model polluted water containing fine clay, food dyes, copper sulfate, and bacteria. This treatment changed the polluted water into clear water via coagulation; all students were convinced that the coagulation-inducing agent was a thermostable cationic protein. Finally, basic biochemical techniques (e.g., chromatographic separation and electrophoresis) were used to show that the target coagulant is a dimeric protein composed of 6.5 and 4.5 kDa subunits. Overall, this made it possible for the students to gain a deeper understanding (more comprehensive than the information taught in formal classes) of protein structure and its real-world implications. This stepwise exercise can be applied to research-based learning programs in high school, as it is an effective learning tool.
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Affiliation(s)
- Hiroshi Oyama
- Faculty of Science and Engineering, Setsunan University, Neyagawa, Japan
| | - Yuka Nabeshima
- Faculty of Science and Engineering, Setsunan University, Neyagawa, Japan
| | - Koichi Morimoto
- Faculty of Education, Nara University of Education, Nara, Japan
| | - Yukio Sugimura
- School of Science and Technology, Kyoto Institute of Technology, Kyoto, Japan
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12
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Gupta L, Sood PK, Nehru B, Sharma S. Ameliorative Effect of Palm Oil in Aluminum Lactate Induced Biochemical and Histological Implications in Rat Brain. Biol Trace Elem Res 2023; 201:2843-2853. [PMID: 35869376 DOI: 10.1007/s12011-022-03366-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 07/15/2022] [Indexed: 11/28/2022]
Abstract
α-Tocotrienol is one of the major constituents of palm oil. It is a well-known antioxidant and cholesterol-lowering neuroprotectant. To prevent the initiation of Alzheimer's like symptoms, much attention has been shifted to the major role played by antioxidants. Previous epidemiological reports correlate the increasing incidence of developing Alzheimer's disease (AD), to the aluminum (Al) content in drinking water. Al, being a ubiquitous element, has a long history of being particularly reactive towards multiple aspects of neurobiology. So, the current study examines the effect of Al-induced behavioral, biochemical, and histopathological changes in rat brain; and the ameliorative effect of palm oil in reducing the resulting neurotoxicity. The experimental design consisted of 4 groups: control group which received rodent chow diet and water ad libitum; Al group received aluminum lactate (50 mg/kg bw); Al + palm oil group was administered with Al (50 mg/kg bw) and palm oil (60 mg/kg bw); and palm oil group received palm oil (60 mg/kg bw). Al was given by oral gavage once daily for 6 weeks and palm oil was administered intraperitoneally. After 6 weeks of supplementation, Al + palm oil group showed significantly lower malondialdehyde (MDA) content, but higher superoxide dismutase (SOD), catalase (CAT), GST, and GPx activity as compared to Al group. Al group has significantly higher level of MDA content, but lower SOD, CAT, GST, and GPx activity as compared to control group. In conclusion, this study suggested that palm oil was effective in preventing the Al-induced brain damage in rats.
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Affiliation(s)
- Liza Gupta
- Department of Biophysics, Panjab University, Chandigarh, India
| | | | - Bimla Nehru
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Sheetal Sharma
- Department of Biophysics, Panjab University, Chandigarh, India.
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Asghar H, Ahmed T. Comparative Study of Time-Dependent Aluminum Exposure and Post-Exposure Recovery Shows Better Improvement in Synaptic Changes and Neuronal Pathology in Rat Brain After Short-Term Exposure. Neurochem Res 2023:10.1007/s11064-023-03936-6. [PMID: 37093344 DOI: 10.1007/s11064-023-03936-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/16/2023] [Accepted: 03/31/2023] [Indexed: 04/25/2023]
Abstract
Aluminum is a ubiquitous metal that causes multiple brain pathologies such as, cognitive dysfunction and Alzheimer's disease like symptoms. Exposure to aluminum through drinking water is responsible for hampering learning and memory. This study aimed to compare (1) the time-dependent effect of aluminum exposure (keeping total exposure of 5850 mg/kg same) in two durations, 30 and 45 days, and (2) to compare post-exposure self-recovery effect after 20 days in both (30 and 45 days exposure) groups. Rats were given 130 and 195 mg/kg of AlCl3·6H2O for 45 and 30 days respectively, to see the time-dependent exposure effect. At the end of exposure, rats were given distilled water and allowed to self-recover for 20 days to study the recovery. Expression levels of synaptic genes (Syp, SNAP25, Nrxn1/2, PSD95, Shank1/2, Homer1, CamkIV, Nrg1/2 and Kalrn) were measured using qPCR and compared in the exposure and recovery groups. Cellular morphology of the rat brain cortex and hippocampus was also investigated. Damage in lipid and protein profile was measured by employing FTIR. Results showed downregulation of mRNA expression of synaptic genes, plaques deposition, disorganization in lipid and protein profile by increasing membrane fluidity, and disorder and alteration of protein secondary structure after both exposure periods. However, better improvement/recovery in these parameters were observed in recovery group of 30 days aluminum exposure compared to 45 days aluminum exposure group. Taken together, these results suggested that short-term exposure resulted in better restoration of lipid and protein profile after time-dependent exposure of aluminum than prolonged exposure.
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Affiliation(s)
- Humna Asghar
- Neurobiology Laboratory, Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan
| | - Touqeer Ahmed
- Neurobiology Laboratory, Department of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Sector H-12, Islamabad, 44000, Pakistan.
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14
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Wadie CM, Ali RH, Mohamed AEHA, Labib JMW, Sabaa AR, Awad HEA, Abou-Bakr DA. A comparative study of acetyl-l-carnitine and caloric restriction impact on hippocampal autophagy, apoptosis, neurogenesis, and astroglial function in AlCl 3-induced Alzheimer's in rats. Can J Physiol Pharmacol 2023; 101:244-257. [PMID: 36988119 DOI: 10.1139/cjpp-2022-0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Alzheimer's disease (AD) is a worldwide chronic progressive neurodegenerative disease. We aimed to investigate and compare the neuroprotective impact of acetyl-l-carnitine and caloric restriction (CR) on AlCl3-induced AD to explore the pathogenesis and therapeutic strategies of AD. Sixty-seven adult male Wistar rats were allocated into Control, AlCl3, AlCl3-acetyl-l-carnitine, and AlCl3-CR groups. Each of AlCl3 and acetyl-l-carnitine were given by gavage in a daily dose of 100 mg/kg and CR was conducted by giving 70% of the daily average caloric intake of the control group. Rats were subjected to behavioral assessment using open field test, Y maze, novel object recognition test and passive avoidance test, biochemical assay of serum phosphorylated tau (pTau), hippocampal homogenate phosphorylated adenosine monophosphate-activated protein kinase, Beclin-1, Bcl-2-associated X protein, and B cell lymphoma 2 (Bcl2) as well as hippocampal Ki-67 and glial fibrillary acidic protein immunohistochemistry. AlCl3-induced cognitive and behavioral deficits coincident with impaired autophagy and enhanced apoptosis associated with defective neurogenesis and defective astrocyte activation. Acetyl-l-carnitine and CR partially protect against AlCl3-induced behavioral, cognitive, biochemical, and histological changes, with more ameliorative effect of acetyl-l-carnitine on hippocampal apoptotic markers, and more obvious behavioral and histological improvement with CR.
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Affiliation(s)
- Christina Magdy Wadie
- Physiology Department, Faculty of Medicine, Ain Shams University (ASU), Cairo, Egypt
| | - Radwa Hassan Ali
- Physiology Department, Faculty of Medicine, Ain Shams University (ASU) & Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | | | - Jolly M W Labib
- Histology and Cell Biology Department, Faculty of Medicine, Ain Shams University (ASU), Cairo, Egypt
| | - Abdel Rhman Sabaa
- Physiology Department, Faculty of Medicine, Ain Shams University (ASU) & Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Hossam Eldin Ahmed Awad
- Physiology Department, Faculty of Medicine, Ain Shams University (ASU) & Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Doaa Ahmed Abou-Bakr
- Physiology Department, Faculty of Medicine, Ain Shams University (ASU) & Armed Forces College of Medicine (AFCM), Cairo, Egypt
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Nafea M, Elharoun M, Abd-Alhaseeb MM, Helmy MW. Leflunomide abrogates neuroinflammatory changes in a rat model of Alzheimer's disease: the role of TNF-α/NF-κB/IL-1β axis inhibition. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:485-498. [PMID: 36385687 PMCID: PMC9898334 DOI: 10.1007/s00210-022-02322-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022]
Abstract
Alzheimer's disease (AD) is one of the most common neurodegenerative diseases and is associated with disrupted cognition and behavior. Neuroinflammatory pathogenesis is the main component that contributes to AD initiation and progression through microglial activation and neuronal damage. Thus, targeting inflammatory pathways may help manage AD. In this study, for the first time, the potential prophylactic and therapeutic effects of leflunomide were investigated either alone or in combination with rivastigmine in aluminum chloride (AlCl3)-induced AD-like rats using behavioral, biochemical, and histological approaches. Thirty-six adult male albino rats were divided into two protocols: the treatment protocol, subdivided into five groups (n = 6)-(1) control group, (2) AlCl3 (50, 70, 100 mg/kg/I.P) group, (3) reference group (rivastigmine 2 mg/kg/P.O.), (4) experimental group (leflunomide 10 mg/kg/P.O.), and (5) combination group (rivastigmine + leflunomide); and the prophylactic protocol (leflunomide 10 mg/kg/P.O.), which started 2 weeks before AlCl3 induction. The results showed that AlCl3 disrupted learning and memory parameters in rats and increased amyloid-β plaque deposition and neurofibrillary tangle aggregation. Moreover, AlCl3 administration markedly elevated acetylcholinesterase activity, nuclear factor-kappa β, tumor necrosis factor-α, and interleukin-1 beta, and marked degenerative changes in the pyramidal neurons. However, administration of leflunomide alone or with rivastigmine in AlCl3-induced AD rats restored most of the behavioral, biochemical, and histological parameters triggered by AlCl3 in rats. Our findings suggest that leflunomide can potentially restore most of the neuronal damage in the hippocampal tissues of AlCl3-induced AD rats. However, these preclinical findings still need to be confirmed in clinical trials.
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Affiliation(s)
- Menna Nafea
- Department of Pharmacology and Biochemistry, College of Pharmacy, Arab Academy for Science, Technology & Maritime Transport, Alexandria, Egypt
| | - Mona Elharoun
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, El-Bahira, Egypt
| | | | - Maged Wasfy Helmy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, El-Bahira, Egypt.
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16
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Baraibar AM, de Pascual R, Carretero VJ, Liccardi N, Juárez NH, Hernández-Guijo JM. Aluminum alters excitability by inhibiting calcium, sodium, and potassium currents in bovine chromaffin cells. J Neurochem 2023; 165:162-176. [PMID: 36800503 DOI: 10.1111/jnc.15784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/20/2023] [Accepted: 02/06/2023] [Indexed: 02/19/2023]
Abstract
Aluminum (Al3+ ) has long been related to neurotoxicity and neurological diseases. This study aims to describe the specific actions of this metal on cellular excitability and neurotransmitter release in primary culture of bovine chromaffin cells. Using voltage-clamp and current-clamp recordings with the whole-cell configuration of the patch clamp technique, online measurement of catecholamine release, and measurements of [Ca2+ ]c with Fluo-4-AM, we have observed that Al3+ reduced intracellular calcium concentrations around 25% and decreased catecholamine secretion in a dose-dependent manner, with an IC50 of 89.1 μM. Al3+ blocked calcium currents in a time- and concentration-dependent manner with an IC50 of 560 μM. This blockade was irreversible since it did not recover after washout. Moreover, Al3+ produced a bigger blockade on N-, P-, and Q-type calcium channels subtypes (69.5%) than on L-type channels subtypes (50.5%). Sodium currents were also inhibited by Al3+ in a time- and concentration-dependent manner, 24.3% blockade at the closest concentration to the IC50 (399 μM). This inhibition was reversible. Voltage-dependent potassium currents were low affected by Al3+ . Nonetheless, calcium/voltage-dependent potassium currents were inhibited in a concentration-dependent manner, with an IC50 of 447 μM. This inhibition was related to the depression of calcium influx through voltage-dependent calcium channels subtypes coupled to BK channels. In summary, the blockade of these ionic conductance altered cellular excitability that reduced the action potentials firing and so, the neurotransmitter release and the synaptic transmission. These findings prove that aluminum has neurotoxic properties because it alters neuronal excitability by inhibiting the sodium currents responsible for the generation and propagation of impulse nerve, the potassium current responsible for the termination of action potentials, and the calcium current responsible for the neurotransmitters release.
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Affiliation(s)
- Andrés M Baraibar
- Department of Neurosciences, Universidad del País Vasco UPV/EHU, Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain.,Biocruces Bizkaia Health Research Institute, Baracaldo, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | | | | | - Ninfa Liccardi
- Department of Pharmacology and Therapeutic, Madrid, Spain
| | | | - Jesús M Hernández-Guijo
- Department of Pharmacology and Therapeutic, Madrid, Spain.,Instituto Teófilo Hernando, Facultad de Medicina, Univ. Autónoma de Madrid, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS, Hospital Ramón y Cajal, Madrid, Spain
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17
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Teixeira GTL, do Nascimento JPL, Gelamo RV, Moreto JA, Slade NBL. Strategies for Functionalization of Metallic Surfaces with Bioactive Peptides: a Mini Review. Int J Pept Res Ther 2023. [DOI: 10.1007/s10989-023-10497-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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18
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Ramires PF, Dos Santos M, Paz-Montelongo S, Rubio-Armendáriz C, Adamatti D, Fiasconaro ML, da Silva Júnior FMR. Multiple exposure pathways and health risk assessment of potentially harmful elements for children and adults living in a coal region in Brazil. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:305-318. [PMID: 35347513 DOI: 10.1007/s10653-022-01234-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
Energy generated by coal can contaminate the environment by releasing toxic elements, including metals. The human health risk assessment (HHRA) associated with geographic information system (GIS) tools can assist the management of contaminated areas, such as coal mining areas. The objective of the study was to carry out the assessment and spatialization of the risk to human health of potentially hazards elements (PHEs) in the soil for children and adults, from multiple exposure routes (oral, inhalation and dermal) in the Candiota mines, largest coal mining region of Brazil. The non-carcinogenic risks (HQ) of PHEs (Cu, Pb, Zn, Ni, Cr, Fe, Mn, Cd, As and Se) and carcinogenic risks of As were estimated and spatialized. The results revealed a risk for children exposure to Mn, with greatest contribution through dermal route. Mn (HQderm 72.41-96.09% and HQinh 40.84-82.52%) and Fe (HQo 43.90-81.44%) were the metals with greatest contribution to human health risk among studied population. As did not present carinogenic risk to adults. The spatial distribution of non-carcinogenic risk showed that Cr, As, Fe, Pb, Ni, Zn and Cu have higher HInc close to the coal mining areas, while Mn, Se and Cd have the highest HInc values in surrounding municipalities (Pinheiro Machado; Pedras Altas and Hulha Negra). The use of HHRA associated with GIS tools provides important elements for decision-making in the management of contaminated sites, indicating chemical elements, locations, routes of exposure and priority target populations.
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Affiliation(s)
- Paula Florencio Ramires
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Rio Grande, RS, Brazil
- Laboratório de Ensaios Farmacológicos E Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Marina Dos Santos
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Rio Grande, RS, Brazil
- Laboratório de Ensaios Farmacológicos E Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Soraya Paz-Montelongo
- Área de Toxicología, Universidad de La Laguna, 38200, La Laguna, Santa Cruz de Tenerife, Spain
| | - Carmen Rubio-Armendáriz
- Área de Toxicología, Universidad de La Laguna, 38200, La Laguna, Santa Cruz de Tenerife, Spain
| | - Diana Adamatti
- Centro de Ciências Computacionais, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Maria Laura Fiasconaro
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Rio Grande, RS, Brazil
- CONICET - UNL, Instituto de Desarrollo Tecnologico Paraara La Industria Quimica (Intec), Ruta Nacional - Paraje "El Pozo", Santa Fe, Argentina
| | - Flávio Manoel Rodrigues da Silva Júnior
- Programa de Pós-Graduação em Ciências da Saúde, Faculdade de Medicina, Rio Grande, RS, Brazil.
- Laboratório de Ensaios Farmacológicos E Toxicológicos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil.
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Microglial Activation in Metal Neurotoxicity: Impact in Neurodegenerative Diseases. BIOMED RESEARCH INTERNATIONAL 2023; 2023:7389508. [PMID: 36760476 PMCID: PMC9904912 DOI: 10.1155/2023/7389508] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 02/04/2023]
Abstract
Neurodegenerative processes encompass a large variety of diseases with different pathological patterns and clinical features, such as Alzheimer's and Parkinson's diseases. Exposure to metals has been hypothesized to increase oxidative stress in brain cells leading to cell death and neurodegeneration. Neurotoxicity of metals has been demonstrated by several in vitro and in vivo experimental studies, and most probably, each metal has its specific pathway to trigger cell death. As a result, exposure to essential metals, such as manganese, iron, copper, zinc, and cobalt, and nonessential metals, including lead, aluminum, and cadmium, perturbs metal homeostasis at the cellular and organism levels leading to neurodegeneration. In this contribution, a comprehensive review of the molecular mechanisms by which metals affect microglia physiology and signaling properties is presented. Furthermore, studies that validate the disruption of microglia activation pathways as an essential mechanism of metal toxicity that can contribute to neurodegenerative disease are also presented and discussed.
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Sharma S, Chayawan, Jayaraman A, Debnath J, Ghosh KS. Highly Selective Aminopyrazine‐Based Colorimetric Probe for “Naked‐Eye” Detection of Al
3+
: Experimental, Computational Studies and Applications in Molecular Logic Circuits. ChemistrySelect 2023. [DOI: 10.1002/slct.202203695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Shivani Sharma
- Department of Chemistry National Institute of Technology Hamirpur Himachal Pradesh 177005 India
| | - Chayawan
- Department of Chemistry National Institute of Technology Hamirpur Himachal Pradesh 177005 India
| | - Adithyan Jayaraman
- School of Chemical and Biotechnology SASTRA Deemed to be University Thanjavur Tamilnadu 613401 India
| | - Joy Debnath
- Department of Chemistry SASTRA Deemed to be University Thanjavur Tamilnadu 613401 India
| | - Kalyan Sundar Ghosh
- Department of Chemistry National Institute of Technology Hamirpur Himachal Pradesh 177005 India
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21
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Teixeira GTL, Gelamo RV, Mateus Santos Obata M, Andrade Silva LED, Silva MVD, Oliveira CJFD, Silva BPD, Aoki IV, Moreto JA, Slade NBL. Exploring the functionalization of Ti-6Al-4V alloy with the novel antimicrobial peptide JIChis-2 via plasma polymerization. BIOFOULING 2023; 39:47-63. [PMID: 36856008 DOI: 10.1080/08927014.2023.2183121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to characterize the immobilization of the novel JIChis-2 peptide on the Ti-6Al-4V alloy, widely used in the biomedical sector. The antimicrobial activity of JIChis-2 was evaluated in the Gram-negative bacterium E. coli. Its immobilization occurred by inducing the formation of covalent bonds between the N-terminus of the peptides and the surface previously submitted to acrylic acid polymerization via the PECVD technique. Coated and uncoated surfaces were characterized by FTIR, AFM, SEM and EDX. Studies of global and localized corrosion were carried out, seeking to explore the effects triggered by surface treatment in an aggressive environment. Additionally, the ability of the functionalized material to prevent E. coli biofilm formation evidenced that the strategy to immobilize JIChis-2 in the Ti-6Al-4V alloy via PECVD of acrylic acid resulted in the development of a functional material with antibiofilm properties.
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Affiliation(s)
- Gabriella Teresinha Lima Teixeira
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - Rogério Valentim Gelamo
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
- Institute of Technological and Exact Sciences, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
| | - Malu Mateus Santos Obata
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | | | - Marcos Vinícius da Silva
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Carlo José Freire de Oliveira
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Brunela Pereira da Silva
- Polytechnic School, Chemical Engineering Department, University of São Paulo, Av. Prof. Luciano Gualberto, São Paulo, São Paulo, Brazil
| | - Idalina Vieira Aoki
- Polytechnic School, Chemical Engineering Department, University of São Paulo, Av. Prof. Luciano Gualberto, São Paulo, São Paulo, Brazil
| | - Jeferson Aparecido Moreto
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - Natália Bueno Leite Slade
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
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22
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Sherif ESM, Bahri YA, Alharbi HF, Ijaz MF, Alnaser IA. Influence of Tantalum Addition on the Corrosion Passivation of Titanium-Zirconium Alloy in Simulated Body Fluid. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8812. [PMID: 36556616 PMCID: PMC9781476 DOI: 10.3390/ma15248812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Ti-15%Zr alloy and Ti-15%Zr-2%Ta alloy were fabricated to be used in biomedical applications. The corrosion of these two alloys after being immersed in simulated body fluid for 1 h and 72 h was investigated. Different electrochemical methods, including polarization, impedance, and chronoamperometric current with time at 400 mV were employed. Also, the surface morphology and the compositions of its formed film were reported by the use of scanning electron microscope and energy dispersive X-ray. Based on the collected results, the presence of 2%Ta in the Ti-Zr alloy passivated its corrosion by minimizing its corrosion rate. The polarization curves revealed that adding Ta within the alloy increases the corrosion resistance as was confirmed by the impedance spectroscopy and current time data. The change of current versus time proved that the addition of Ta reduces the absolute current even at high anodic potential, 400 mV. The results of both electrochemical and spectroscopic methods indicated that pitting corrosion does not occur for both Ti-Zr and Ti-Zr-Ta alloys, even after their immersion in SBF solutions for 72 h.
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Affiliation(s)
- El-Sayed M. Sherif
- Centre of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Yassir A. Bahri
- Mechanical Engineering Department, Collage of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Hamad F. Alharbi
- Mechanical Engineering Department, Collage of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Muhammad Farzik Ijaz
- Mechanical Engineering Department, Collage of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Ibrahim A. Alnaser
- Centre of Excellence for Research in Engineering Materials (CEREM), King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
- Mechanical Engineering Department, Collage of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
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Reutova NV, Reutova TV, Dreeva FR, Shevchenko AA. Long-term impact of the Tyrnyauz tungsten-molybdenum mining and processing factory waste on environmental pollution and children's population. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:4557-4568. [PMID: 35188606 DOI: 10.1007/s10653-022-01221-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
We studied the consequences of the long-term impact of remediated tailing ponds from the Tyrnyauz tungsten-molybdenum mining and processing factory on the environmental pollution and children living in the area. For more than 60 years, the factory has been engaged in the development of tungsten-molybdenum deposits by open-pit and mine methods and the enrichment of the extracted ore. More than 252,771 thousand tons of waste accumulated in its dumps and tailings ponds. This 170-hectare tailing pond contains more than 125 million tons of waste with arsenic, tungsten, molybdenum and other metals. To examine the possible accumulation of potentially toxic elements in children's bodies, we determined the content of heavy metals in drinking water and in the hair of children. An exfoliated buccal micronucleus test was used to determine the cytogenetic status of children. We did not find significant differences in the content of heavy metals inherent of a tailing pond in children's hair from polluted area compared to the control zone. In buccal cells of children living in the vicinity of the tailings pond, the total number of cytogenetic abnormalities was increased by 4.1 times, the total index of proliferation by 1.5 times, early destruction of the nucleus by 2 times and apoptosis by 1.2 times compared to the clean zone. Thus, we identified a genotoxic and cytotoxic effect on children living in the vicinity of the tailing ponds, which led to an increase in the number of children belonging to the medium- and high-risk groups. No correlations were found between the content of heavy metals in children's hair and the frequency of cells with cytogenetic abnormalities. Weak positive correlation was found between the content of manganese, zinc and copper in children's hair and the indicators of buccal epithelial cell proliferation.
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Affiliation(s)
- Nina V Reutova
- Kabardino-Balkar Scientific Center of Russian Academy of Sciences, Nalchik, Russia.
| | - Tatiana V Reutova
- Kabardino-Balkar Scientific Center of Russian Academy of Sciences, Nalchik, Russia
| | - Fatima R Dreeva
- Kabardino-Balkar Scientific Center of Russian Academy of Sciences, Nalchik, Russia
| | - Anna A Shevchenko
- Kabardino-Balkarian State University Named After H.M. Berbekov, Nalchik, Russia
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Experimental and theoretical studies on coordination of a flexible cyclohexane based C3-symmetric tripodal ligand with iron, aluminum and gallium. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Capriello T, Di Meglio G, De Maio A, Scudiero R, Bianchi AR, Trifuoggi M, Toscanesi M, Giarra A, Ferrandino I. Aluminium exposure leads to neurodegeneration and alters the expression of marker genes involved to parkinsonism in zebrafish brain. CHEMOSPHERE 2022; 307:135752. [PMID: 35863414 DOI: 10.1016/j.chemosphere.2022.135752] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Aluminium, despite being extremely widespread in the world, is a non-essential metal to human metabolism. This metal is known to have toxic effects on a variety of organs including the brain and is considered an etiological factor in neurodegenerative diseases. However, the molecular mechanisms by which aluminium exerts neurotoxic effects are not yet completely understood. Zebrafish is an animal model also used to study neurodegenerative diseases since the overall anatomical organization of the central nervous system is relatively conserved and similar to mammals. Adult zebrafish were exposed to 11 mg/L of Al for 10, 15, and 20 days and the neurotoxic effects of aluminium were analysed by histological, biochemical, and molecular evaluations. Histological stainings allowed to evaluation of the morphology of the brain parenchyma, the alteration of myelin and the activation of neurodegenerative processes. The expression of the Glial Fibrillary Acidic Protein, a marker of glial cells, was evaluated to observe the quantitative alteration of this important protein for the nervous system. In addition, the poly(ADP-ribose) polymerase activity was measured to verify a possible oxidative DNA damage caused by exposure to this metal. Finally, the evaluation of the markers involved in Parkinsonism was assessed by Real-Time PCR to better understand the role of aluminium in the regulation of genes related to Parkinson's neurodegenerative disease. Data showed that aluminium significantly affected the histology of cerebral tissue especially in the first periods of exposure, 10 and 15 days. This trend was also followed by the expression of GFAP. At longer exposure times, there was an improvement/stabilization of the overall neurological conditions and decrease in PARP activity. In addition, aluminium is involved in the deregulation of the expression of genes closely related to Parkinsonism. Overall, the data confirm the neurotoxicity induced by aluminium and shed a light on its involvement in neurodegenerative processes.
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Affiliation(s)
- Teresa Capriello
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Gianluca Di Meglio
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Anna De Maio
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Rosaria Scudiero
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Anna Rita Bianchi
- Department of Biology, University of Naples "Federico II", Naples, Italy.
| | - Marco Trifuoggi
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Maria Toscanesi
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Antonella Giarra
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
| | - Ida Ferrandino
- Department of Biology, University of Naples "Federico II", Naples, Italy.
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Rahbar MH, Samms-Vaughan M, Zhao Y, Saroukhani S, Bressler J, Hessabi M, Grove ML, Shakespeare-Pellington S, Loveland KA. Interactions between Environmental Factors and Glutathione S-Transferase (GST) Genes with Respect to Detectable Blood Aluminum Concentrations in Jamaican Children. Genes (Basel) 2022; 13:genes13101907. [PMID: 36292793 PMCID: PMC9601654 DOI: 10.3390/genes13101907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/13/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Aluminum (Al) is a metallic toxicant at high concentrations following natural or unnatural exposures. Dietary intake is considered as the main source of aluminum exposure in children. We used data from 366 typically developing (TD) children (ages 2−8 years) who participated as controls in an age- and sex-matched case−control study in Jamaica. We investigated additive and interactive associations among environmental factors and children’s genotypes for glutathione S-transferase (GST) genes (GSTT1, GSTM1, GSTP1), in relation to having a detectable blood aluminum concentration (BAlC) of >5.0 μg/L, using multivariable logistic regression models. Findings from interactive models revealed that the odds of having a detectable BAlC was significantly higher among children who ate string beans (p ≤ 0.01), whereas about 40% lower odds of having a detectable BAlC was observed in children with higher parental education level, (p = 0.02). A significant interaction between consumption of saltwater fish and GSTP1 in relation to having a detectable BAlC using either co-dominant or dominant genetic models (overall interaction p = 0.02 for both models) indicated that consumption of saltwater fish was associated with higher odds of having a detectable BAlC only among children with the GSTP1 Ile105Val Ile/Ile genotype using either co-dominant or dominant models [OR (95% CI) = 2.73 (1.07, 6.96), p = 0.04; and OR (95% CI) = 2.74 (1.08, 6.99), p = 0.03]. Since this is the first study from Jamaica that reports such findings, replication in other populations is warranted.
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Affiliation(s)
- Mohammad H. Rahbar
- Department of Epidemiology, Human Genetics, and Environmental Sciences (EHGES), School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Correspondence: ; Tel.: +1-713-500-7901; Fax: +1-713-500-0766
| | - Maureen Samms-Vaughan
- Department of Child & Adolescent Health, The University of the West Indies (UWI), Mona Campus, Kingston 7, Jamaica
| | - Yuansong Zhao
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Department of Biostatistics & Data Science, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Sepideh Saroukhani
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jan Bressler
- Department of Epidemiology, Human Genetics, and Environmental Sciences (EHGES), School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Manouchehr Hessabi
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Megan L. Grove
- Department of Epidemiology, Human Genetics, and Environmental Sciences (EHGES), School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | | | - Katherine A. Loveland
- Louis A Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA
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Jain S, Parashar V. Analytical review on the biocompatibility of surface-treated Ti-alloys for joint replacement applications. Expert Rev Med Devices 2022; 19:699-719. [PMID: 36240236 DOI: 10.1080/17434440.2022.2132146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION With the advancement of joint replacements such as total hip replacement (THR), Titanium (Ti) and its alloys are widely used as implant materials. The bearing surface of Ti improves the longevity of implants. In this perception, researchers design a Ti-alloy that increases the wear and corrosion resistance to enhance osteogenesis and mechanical stability. AREAS COVERED : This paper is dedicated to finding the major causes of the failure of THR. Further, this paper provides an overview of the application of metallic alloys and their influencing factors that influence biocompatibility. The most contributing part of this paper focuses on the post-treatment impact on Ti-alloys biocompatibility. EXPERT OPINION This paper revealed and discussed that Ti alloys' biocompatibility for orthopedic applications mainly depends on antibacterial activities that decide tissue-implant compatibility. Therefore, performing surface treatment enhances the biocompatibility of Ti alloys. It was also observed that more water contact angle (WCA) induces bacterial growth and enhances cell adhesion. In contrast, the treated surface increases the antibacterial activities at lower WCA. Surface heat treatment with sintering or micro-arc oxidation achieves suitable antibacterial or antimicrobial activities.
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Affiliation(s)
- Shubham Jain
- Department of Mechanical Engineering, MANIT, Bhopal,462003, India
| | - Vishal Parashar
- Department of Mechanical Engineering, MANIT, Bhopal,462003, India
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Gilani SJ, Bin-Jumah MN, Al-Abbasi FA, Imam SS, Alshehri S, Ghoneim MM, Shahid Nadeem M, Afzal M, Alzarea SI, Sayyed N, Kazmi I. Antiamnesic Potential of Malvidin on Aluminum Chloride Activated by the Free Radical Scavenging Property. ACS OMEGA 2022; 7:24231-24240. [PMID: 35874261 PMCID: PMC9301734 DOI: 10.1021/acsomega.2c01406] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objectives: Malvidin, a dietary anthocyanin can be a potent drug for the treatment of neuronal toxicity. The investigation was aimed to study the antioxidant role of malvidin against aluminum chloride (AlCl3)-induced neurotoxicity in rats. Methods: To evaluate the neuroprotective role of malvidin, the rats were divided into four different groups: group I received saline, group II received AlCl3, and groups III and IV were administered with 100 and 200 mg/kg malvidin after AlCl3 for 60 days. During the evaluation period, all the groups were subjected to a behavioral test. On the 61st day of the study, rat brains were removed and used for a neurochemical assay. Results: From the present study, malvidin ameliorated the effects of AlCl3 on behavioral parameters. Biochemical investigation revealed that oral treatment of malvidin shows neuroprotective effects through regulation of antioxidant levels and neuroinflammation in the AlCl3-exposed rats. Conclusion: The results indicate that malvidin possesses antioxidant activity via acetylcholinesterase inhibition and regulation of oxidative stress in neuronal cells. Hence, malvidin could be a potential drug in correcting Alzheimer's disease.
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Affiliation(s)
- Sadaf Jamal Gilani
- Department of Basic Health Sciences, Preparatory Year, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - May Nasser Bin-Jumah
- Biology Department, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
- Environment and Biomaterial Unit, Health Sciences Research Center, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Fahad A Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University Jeddah 21589, Saudi Arabia
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed M Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah 13713, Saudi Arabia
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University Jeddah 21589, Saudi Arabia
| | - Muhammad Afzal
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Aljouf, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Aljouf, Saudi Arabia
| | - Nadeem Sayyed
- Glocal School of Pharmacy, Glocal University, Saharanpur, Uttar Pradesh 247121, India
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University Jeddah 21589, Saudi Arabia
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Titanium or Biodegradable Osteosynthesis in Maxillofacial Surgery? In Vitro and In Vivo Performances. Polymers (Basel) 2022; 14:polym14142782. [PMID: 35890557 PMCID: PMC9316877 DOI: 10.3390/polym14142782] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 02/06/2023] Open
Abstract
Osteosynthesis systems are used to fixate bone segments in maxillofacial surgery. Titanium osteosynthesis systems are currently the gold standard. However, the disadvantages result in symptomatic removal in up to 40% of cases. Biodegradable osteosynthesis systems, composed of degradable polymers, could reduce the need for removal of osteosynthesis systems while avoiding the aforementioned disadvantages of titanium osteosyntheses. However, disadvantages of biodegradable systems include decreased mechanical properties and possible foreign body reactions. In this review, the literature that focused on the in vitro and in vivo performances of biodegradable and titanium osteosyntheses is discussed. The focus was on factors underlying the favorable clinical outcome of osteosyntheses, including the degradation characteristics of biodegradable osteosyntheses and the host response they elicit. Furthermore, recommendations for clinical usage and future research are given. Based on the available (clinical) evidence, biodegradable copolymeric osteosyntheses are a viable alternative to titanium osteosyntheses when applied to treat maxillofacial trauma, with similar efficacy and significantly lower symptomatic osteosynthesis removal. For orthognathic surgery, biodegradable copolymeric osteosyntheses are a valid alternative to titanium osteosyntheses, but a longer operation time is needed. An osteosynthesis system composed of an amorphous copolymer, preferably using ultrasound welding with well-contoured shapes and sufficient mechanical properties, has the greatest potential as a biocompatible biodegradable copolymeric osteosynthesis system. Future research should focus on surface modifications (e.g., nanogel coatings) and novel biodegradable materials (e.g., magnesium alloys and silk) to address the disadvantages of current osteosynthesis systems.
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Yoshida S. Therapeutic Strategies and Metal-Induced Oxidative Stress: Application of Synchrotron Radiation Microbeam to Amyotrophic Lateral Sclerosis in the Kii Peninsula of Japan. Front Neurol 2022; 13:884439. [PMID: 35837234 PMCID: PMC9273737 DOI: 10.3389/fneur.2022.884439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
A series of extensive gene-environment studies on amyotrophic lateral sclerosis (ALS) and Parkinsonism–dementia complex (PDC) in Guam Island, USA, and the Kii Peninsula of Japan, including Auyu Jakai, West New Guinea, have led us to hypothesize that a prolonged low calcium (Ca) and magnesium (Mg) intake, especially over generation, may cause oxidative stress to motor and nigral neurons by an increased uptake of environment metallic elements, i.e., aluminum (Al), manganese (Mn), and iron (Fe). Otherwise, 5–10% of total ALS cases are familial ALS (fALS), of which 20% of the fALS cases linked to a point mutation of Cu/Zn superoxide dismutase (SOD1). In the vicinity of the Kii Peninsula, about 7% of the ALS cases are also linked to the SOD1 mutation. Using synchrotron radiation (SR) microbeam, conglomerate inclusion (SOD1 aggregates) within a spinal motor neuron of the fALS case in the vicinity revealed a loss of copper (Cu) in contrast to extremely high contents of Zinc (Zn) and Ca. That means an exceptionally low Cu/Zn ratio with an increased Ca content, indicating the abnormalities of the active site of SOD1 protein of the fALS. Furthermore, sALS in the southernmost high incidence areas of the Kii Peninsula showed a low Cu/Zn ratio within a motor neuron, suggesting a fragility of SOD1 proteins. From the perspective of gene–environment interactions, the above two research trends may show a common oxidative stress underlying the neuronal degenerative process of ALS/PDC in the Kii Peninsula of Japan. Therefore, it is a crucial point for the prospect of therapeutic strategy to clarify a role of transition metals in the oxidative process in both ALS/PDC, including ALS elsewhere in the world. This paper reviews a history of the genetic epidemiological studies, especially from the aspect of gene–environment interaction, on ALS/PDC in the Kii and Guam high incidence foci and the results of a series of analytical research on trace metallic elements within neurons of both sALS and fALS cases, especially using a synchrotron radiation (SR) microbeam of Spring-8 and Photon Factory of Japan. The SR microbeam is an ideal X-ray source, which supplies an extremely high brilliance (high-intensity photon) and tunability (energy variability) to investigate trace metallic elements contained in biological specimens at the cellular level, even more without any damages. This research will provide a valuable information about the mechanism of oxidative stress involved in neuronal cell death in ALS and related neurodegenerative disorders. To elucidate the physicochemical mechanism of the oxidative process in neuronal degeneration, it will shed a new light on the therapeutic strategies for ALS/PDC in near future.
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Wang B, Wu C, Cui L, Wang H, Liu Y, Cui W. Dietary aluminium intake disrupts the overall structure of gut microbiota in Wistar rats. Food Sci Nutr 2022; 10:3574-3584. [PMID: 36348807 PMCID: PMC9632190 DOI: 10.1002/fsn3.2955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 12/05/2022] Open
Abstract
Approximately, 40% of ingested dietary aluminium accumulates in the intestine, which has been considered a target organ for dietary aluminium exposure. The gut microbiota may be the first protective barrier against the toxic metal aluminium and a crucial mediator of the bioavailability of metal aluminium. We previously evaluated dietary aluminium intake and its health risks in a population from Jilin Province, China, and found that the average daily intake of aluminium in the diet of residents in Jilin Province was 0.163 mg/kg after the total diet survey. In the present study, the equivalent concentration of aluminium in rats was extrapolated by the average dietary aluminium intake in the population of Jilin Province based on body surface area. Furthermore, healthy adult Wistar rats were randomly divided into four groups (n = 15 for each group): a control group and three groups treated with aluminium solution (1, 10, and 100 mg/kg/day, intragastrically) for 28 days. Following treatment, necrosis of renal tubular epithelial cells, hyperplasia of bile ducts and hyperplasia of heart tissue, as well as fiber in the liver, kidney, and heart tissues of aluminium‐treated rats were observed, although there were no significant changes in the spleen and brain. Subsequently, fecal samples were withdrawn for 16S rRNA gene sequence analysis. It was found that aluminium decreased the microbiota diversity and changed the overall community structure of the gut microbiota, including three phyla and four genera, together with the regulation of 12 signaling pathways. Collectively, treatment with aluminium markedly altered the structure of the gut microbiota, suggesting that the disorders of intestinal flora induced by aluminium may be an important mechanism for aluminium toxicity.
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Affiliation(s)
- Bo Wang
- Department of Nutrition and Food Hygiene, School of Public Health Jilin University Changchun China
- Department of Physical and Chemical Test Jilin Provincial Center for Disease Control and Prevention Changchun China
| | - Caihong Wu
- Department of Nutrition and Food Hygiene, School of Public Health Jilin University Changchun China
| | - Lianzhi Cui
- Department of Clinical Laboratory Jilin Cancer Hospital Changchun China
| | - Hui Wang
- Department of Physical and Chemical Test Jilin Provincial Center for Disease Control and Prevention Changchun China
| | - Ya Liu
- Department of Nutrition and Food Hygiene, School of Public Health Jilin University Changchun China
| | - Weiwei Cui
- Department of Nutrition and Food Hygiene, School of Public Health Jilin University Changchun China
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Roy M, Nath AK, Pal I, Dey SG. Second Sphere Interactions in Amyloidogenic Diseases. Chem Rev 2022; 122:12132-12206. [PMID: 35471949 DOI: 10.1021/acs.chemrev.1c00941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Amyloids are protein aggregates bearing a highly ordered cross β structural motif, which may be functional but are mostly pathogenic. Their formation, deposition in tissues and consequent organ dysfunction is the central event in amyloidogenic diseases. Such protein aggregation may be brought about by conformational changes, and much attention has been directed toward factors like metal binding, post-translational modifications, mutations of protein etc., which eventually affect the reactivity and cytotoxicity of the associated proteins. Over the past decade, a global effort from different groups working on these misfolded/unfolded proteins/peptides has revealed that the amino acid residues in the second coordination sphere of the active sites of amyloidogenic proteins/peptides cause changes in H-bonding pattern or protein-protein interactions, which dramatically alter the structure and reactivity of these proteins/peptides. These second sphere effects not only determine the binding of transition metals and cofactors, which define the pathology of some of these diseases, but also change the mechanism of redox reactions catalyzed by these proteins/peptides and form the basis of oxidative damage associated with these amyloidogenic diseases. The present review seeks to discuss such second sphere modifications and their ramifications in the etiopathology of some representative amyloidogenic diseases like Alzheimer's disease (AD), type 2 diabetes mellitus (T2Dm), Parkinson's disease (PD), Huntington's disease (HD), and prion diseases.
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Affiliation(s)
- Madhuparna Roy
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Arnab Kumar Nath
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Ishita Pal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Somdatta Ghosh Dey
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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Neurotoxic effects of aluminium exposure as a potential risk factor for Alzheimer's disease. Pharmacol Rep 2022; 74:439-450. [PMID: 35088386 DOI: 10.1007/s43440-022-00353-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 01/02/2023]
Abstract
Aluminium is one of the most widely distributed elements of the Earth's crust. Its routine use has resulted in excessive human exposure and due to the potential neurotoxic effects has attained a huge interest in recent years. Despite its ubiquitous abundance, aluminium has no crucial biological functions in the human body. Oxidative stress and neuroinflammatory effects are attributed to its neurotoxic manifestations implicated in Alzheimer's disease. In this review, we have discussed the neuroinflammatory and neurodegenerative events in the brain induced by aluminium exposure. We have highlighted the neurotoxic events caused by aluminium, such as oxidative stress, apoptosis, inflammatory events, calcium dyshomeostasis, Aβ deposition, and neurofibrillary tangle formation in the brain. In addition, the protective measures needed for prevention of aluminium-induced neuronal dysregulations have also been discussed.
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Naproxen as a potential candidate for promoting rivastigmine anti-Alzheimer activity against aluminum chloride-prompted Alzheimer's-like disease in rats; neurogenesis and apoptosis modulation as a possible underlying mechanism. Eur J Pharmacol 2022; 915:174695. [PMID: 34914971 DOI: 10.1016/j.ejphar.2021.174695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIM Alzheimer's disease (AD) is one of the leading causes of dependence and disability among the elderly worldwide. The traditional anti-Alzheimer medication, rivastigmine, one of the cholinesterase inhibitors (ChEIs), fails to achieve a definitive cure. We tested the hypothesis that naproxen administration to the rivastigmine-treated aluminum chloride (AlCl3) Alzheimer's rat model could provide an additive neuroprotective effect compared to rivastigmine alone. MATERIALS AND METHODS The studied groups were control (Cont), AlCl3 treated (Al), rivastigmine treated (RIVA), naproxen treated (Napro), and combined rivastigmine and naproxen treated (RIVA + Napro). Rats' memory, spatial learning, and cognitive behavior were assessed followed by evaluation of hippocampal acetylcholinesterase (AChE) activity. Hippocampal and cerebellar histopathology were thoroughly examined. Activated caspase-3 and the neuroepithelial stem cells marker; nestin expressions were immunohistochemically assayed. RESULTS AD rats displayed significantly impaired memory and cognitive function, augmented hippocampal AChE activity; massive neurodegeneration associated with enhanced astrogliosis, apoptosis, and impaired neurogenesis. Except for the enhancement of neurogenesis and suppression of apoptosis, the combination therapy had no additional neuroprotective benefit over rivastigmine-only therapy. CONCLUSION Naproxen's efficacy was established by its ability to function at the cellular level, improved neurogenesis, and decreased, apoptosis without having an additional mitigating impact on cognitive impairment in rivastigmine-treated AD rats.
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Silva D, Arcos C, Montero C, Guerra C, Martínez C, Li X, Ringuedé A, Cassir M, Ogle K, Guzmán D, Aguilar C, Páez M, Sancy M. A Tribological and Ion Released Research of Ti-Materials for Medical Devices. MATERIALS (BASEL, SWITZERLAND) 2021; 15:ma15010131. [PMID: 35009273 PMCID: PMC8746336 DOI: 10.3390/ma15010131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 05/12/2023]
Abstract
The increase in longevity worldwide has intensified the use of different types of prostheses for the human body, such as those used in dental work as well as in hip and knee replacements. Currently, Ti-6Al-4V is widely used as a joint implant due to its good mechanical properties and durability. However, studies have revealed that this alloy can release metal ions or particles harmful to human health. The mechanisms are not well understood yet and may involve wear and/or corrosion. Therefore, in this work, commercial pure titanium and a Ti-6Al-4V alloy were investigated before and after being exposed to a simulated biological fluid through tribological tests, surface analysis, and ionic dissolution characterization by ICP-AES. Before exposure, X-ray diffraction and optical microscopy revealed equiaxed α-Ti in both materials and β-Ti in Ti-6Al-4V. Scratch tests exhibited a lower coefficient of friction for Ti-6Al-4V alloy than commercially pure titanium. After exposure, X-ray photoelectron spectroscopy and surface-enhanced Raman spectroscopy results showed an oxide film formed by TiO2, both in commercially pure titanium and in Ti-6Al-4V, and by TiO and Al2O3 associated with the presence of the alloys. Furthermore, inductively coupled plasma atomic emission spectroscopy revealed that aluminum was the main ion released for Ti-6Al-4V, giving negligible values for the other metal ions.
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Affiliation(s)
- Daniela Silva
- Departamento de Ingeniería Mecánica y Metalúrgica, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
- Correspondence: (D.S.); (C.A.)
| | - Camila Arcos
- Departamento de Ingeniería Mecánica y Metalúrgica, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
- Correspondence: (D.S.); (C.A.)
| | - Cecilia Montero
- Departamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago, Santiago 9170022, Chile;
| | - Carolina Guerra
- Departamento de Ingeniería Mecánica y Metalúrgica, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
| | - Carola Martínez
- Departamento de Ingeniería de Obras Civiles, Universidad de La Frontera, Temuco 4780000, Chile;
| | - Xuejie Li
- CNRS, Institut de Recherche de Chimie de Paris, Chimie ParisTech, PSL University, 75005 Paris, France; (X.L.); (A.R.); (M.C.); (K.O.)
| | - Armelle Ringuedé
- CNRS, Institut de Recherche de Chimie de Paris, Chimie ParisTech, PSL University, 75005 Paris, France; (X.L.); (A.R.); (M.C.); (K.O.)
| | - Michel Cassir
- CNRS, Institut de Recherche de Chimie de Paris, Chimie ParisTech, PSL University, 75005 Paris, France; (X.L.); (A.R.); (M.C.); (K.O.)
| | - Kevin Ogle
- CNRS, Institut de Recherche de Chimie de Paris, Chimie ParisTech, PSL University, 75005 Paris, France; (X.L.); (A.R.); (M.C.); (K.O.)
| | - Danny Guzmán
- Departamento de Ingeniería en Metalurgia, Universidad de Atacama, Copiapó 1530000, Chile;
| | - Claudio Aguilar
- Departamento de Ingeniería Metalúrgica y de Materiales, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile;
| | - Maritza Páez
- Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170022, Chile;
| | - Mamié Sancy
- Escuela de Construcción Civil, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
- Centro de Investigación en Nanotecnologiía y Materiales Avanzados “CIEN-UC”, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
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Current status and outlook of biodegradable metals in neuroscience and their potential applications as cerebral vascular stent materials. Bioact Mater 2021; 11:140-153. [PMID: 34938919 PMCID: PMC8665265 DOI: 10.1016/j.bioactmat.2021.09.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/01/2021] [Accepted: 09/18/2021] [Indexed: 12/12/2022] Open
Abstract
Over the past two decades, biodegradable metals (BMs) have emerged as promising materials to fabricate temporary biomedical devices, with the purpose of avoiding potential side effects of permanent implants. In this review, we first surveyed the current status of BMs in neuroscience, and briefly summarized the representative stents for treating vascular stenosis. Then, inspired by the convincing clinical evidence on the in vivo safety of Mg alloys as cardiovascular stents, we analyzed the possibility of producing biodegradable cerebrovascular Mg alloy stents for treating ischemic stroke. For these novel applications, some key factors should also be considered in designing BM brain stents, including the anatomic features of the cerebral vasculature, hemodynamic influences, neuro-cytocompatibility and selection of alloying elements. This work may provide insights into the future design and fabrication of BM neurological devices, especially for brain stents. The current status of the application of biodegradable metals (BM) in neuroscience was presented. We analyzed the possibility of producing biodegradable cerebrovascular Mg alloy stents for ischemic stroke treatment. Key factors in designing BM brain stents were discussed. This work may provide insights into the future design and fabrication of BM neurological devices, especially for brain stents.
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Lekchand Dasriya V, Samtiya M, Dhewa T, Puniya M, Kumar S, Ranveer S, Chaudhary V, Vij S, Behare P, Singh N, Aluko RE, Puniya AK. Etiology and management of Alzheimer's disease: Potential role of gut microbiota modulation with probiotics supplementation. J Food Biochem 2021; 46:e14043. [PMID: 34927261 DOI: 10.1111/jfbc.14043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/11/2021] [Accepted: 12/13/2021] [Indexed: 12/15/2022]
Abstract
Alzheimer's disease (AD) is the leading type of dementia in aging people and is a progressive condition that causes neurodegeneration, resulting in confusion, memory loss, and deterioration of mental functions. AD happens because of abnormal twisting of the microtubule tau protein in neurons into a tangled neurofibrillary structure. Different factors responsible for AD pathogenesis include heavy metals, aging, cardiovascular disease, and environmental and genetic factors. Market available drugs for AD have several side effects that include hepato-toxicity, accelerated cognitive decline, worsened neuropsychiatric symptoms, and triggered suicidal ideation. Therefore, an emerging alternative therapeutic approach is probiotics, which can improve AD by modulating the gut-brain axis. Probiotics modulate different neurochemical pathways by regulating the signalling pathways associated with inflammation, histone deacetylation, and microglial cell activation and maturation. In addition, probiotics-derived metabolites (i.e., short-chain fatty acid, neurotransmitters, and antioxidants) have shown ameliorative effects against AD. Probiotics also modulate gut microbiota, with a beneficial impact on neural signalling and cognitive activity, which can attenuate AD progression. Therefore, the current review describes the etiology and mechanism of AD progression as well as various treatment options with a focus on the use of probiotics. PRACTICAL APPLICATIONS: In an aging population, dementia concerns are quite prevalent globally. AD is one of the most commonly occurring cognition disorders, which is linked to diminished brain functions. Scientific evidence supports the findings that probiotics and gut microbiota can regulate/modulate brain functions, one of the finest strategies to alleviate such disorders through the gut-brain axis. Thus, gut microbiota modulation, especially through probiotic supplementation, could become an effective solution to ameliorate AD.
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Affiliation(s)
| | - Mrinal Samtiya
- Department of Nutrition Biology, Central University of Haryana, Mahendergarh, India
| | - Tejpal Dhewa
- Department of Nutrition Biology, Central University of Haryana, Mahendergarh, India
| | - Monica Puniya
- Food Safety and Standards Authority of India, FDA Bhawan, New Delhi, India
| | - Sanjeev Kumar
- Department of Life Science and Bioinformatics, Assam University, Silchar, India
| | - Soniya Ranveer
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Vishu Chaudhary
- Department of Microbiology, Punjab Agriculture University, Ludhiana, India
| | - Shilpa Vij
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Pradip Behare
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Namita Singh
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Anil Kumar Puniya
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
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González-Villagra J, Pino R, Inostroza-Blancheteau C, Cartes P, Ribera-Fonseca A, Reyes-Díaz M. Pre-Harvest MeJA Application Counteracts the Deleterious Impact of Al and Mn Toxicity in Highbush Blueberry Grown in Acid Soils. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122730. [PMID: 34961201 PMCID: PMC8709121 DOI: 10.3390/plants10122730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Volcanic ash-derived soils are characterized by low pH (pH ≤ 5.5) with increased concentrations of aluminum (Al3+) and manganese (Mn2+), which decreases plant growth, fruit quality, and yield. Methyl jasmonate (MeJA) improves abiotic stress tolerance. Our work aimed to evaluate the application of MeJA's impact on the growth, antioxidant defense, and fruit quality of highbush blueberry grown under Al and Mn toxicity. A field assay was conducted with four-year-old bushes of highbush blueberry cultivar Legacy under eight treatments (Control, Al (87% of Al saturation), Mn (240 mg kg-1), and Al-Mn with and without MeJA application). Physiological, biochemical, and fruit quality parameters were measured. Growth rate significantly decreased with Al (20%), Mn (45%), and Al-Mn (40%). MeJA application recovered the growth rate. Photosynthetic parameters were not affected. Antioxidant activity increased under all treatments compared with controls, being higher with MeJA application. Total phenols (TP) were decreased in plants under Al (43%) and Mn (20%) compared with controls. MeJA application increased TP in all treatments. Fruits of bushes under Al and Mn toxicity with MeJA applications exhibited an increase in fruit firmness and weight, maintaining suitable contents of soluble solids. Our results provide insights about the beneficial effect of MeJA application on growth, antioxidant properties, and fruit quality of highbush blueberry plants grown in acid soils under Al and Mn toxicity.
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Affiliation(s)
- Jorge González-Villagra
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco P.O. Box 15-D, Chile; (J.G.-V.); (C.I.-B.)
- Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco P.O. Box 15-D, Chile
| | - Rocio Pino
- Carrera de Agronomía, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco P.O. Box 54-D, Chile;
| | - Claudio Inostroza-Blancheteau
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco P.O. Box 15-D, Chile; (J.G.-V.); (C.I.-B.)
- Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco P.O. Box 15-D, Chile
| | - Paula Cartes
- Center of Plant-Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile;
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile
| | - Alejandra Ribera-Fonseca
- Center of Plant-Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile;
- Centro de Fruticultura, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco P.O. Box 54-D, Chile
| | - Marjorie Reyes-Díaz
- Center of Plant-Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco P.O. Box 54-D, Chile;
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile
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Zhang H, Han Y, Zhang L, Jia X, Niu Q. The GSK-3β/β-Catenin Signaling-Mediated Brain-Derived Neurotrophic Factor Pathway Is Involved in Aluminum-Induced Impairment of Hippocampal LTP In Vivo. Biol Trace Elem Res 2021; 199:4635-4645. [PMID: 33462795 DOI: 10.1007/s12011-021-02582-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/06/2021] [Indexed: 12/20/2022]
Abstract
The neurotoxic effects of aluminum (Al) are associated with the impairment of synaptic plasticity, the biological basis of learning and memory, the major form of which is long-term potentiation (LTP). The canonical glycogen synthase kinase-3β (GSK-3β)/β-catenin signaling-mediated brain-derived neurotrophic factor (BDNF) pathway has been suggested to play important roles in memory. Thus, Al may affect LTP through this pathway. In this study, a Sprague-Dawley rat model of neurotoxicity was established through intracerebroventricular (i.c.v.) injection of aluminum maltol (Al(mal)3), which was achieved by preimplantation of a cannula into the lateral ventricle. The rats in the control and Al-treated groups received a daily injection of SB216763, an inhibitor of GSK-3β. Electrophysiology and western blot analysis were used to investigate the regulatory effect of the GSK-3β/β-catenin signaling-mediated BDNF pathway on LTP impairment induced by Al(mal)3. The results confirmed that i.c.v. injection of Al(mal)3 significantly suppressed the field excitatory postsynaptic potential (fEPSP) amplitude, as indicated by a decrease in BDNF protein expression, which was accompanied by dose-dependent decreases in β-catenin protein expression and the phosphorylation of GSK-3β at Ser9. Rats that received SB216763, a GSK-3β inhibitor, exhibited higher fEPSP amplitudes than control rats. Furthermore, SB216763 treatment upregulated the hippocampal protein expression of BDNF and β-catenin while increasing the ratio of p-GSK-3β/GSK-3β. From the perspective of the identified β-catenin-BDNF axis, Al impairs hippocampal LTP, possibly through the GSK-3β/β-catenin signaling-mediated BDNF pathway.
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Affiliation(s)
- Huifang Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Yingchao Han
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Xiaofang Jia
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China.
- Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, Taiyuan, China.
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Obafemi TO, Owolabi OV, Omiyale BO, Afolabi BA, Ojo OA, Onasanya A, Adu IAI, Rotimi D. Combination of donepezil and gallic acid improves antioxidant status and cholinesterases activity in aluminum chloride-induced neurotoxicity in Wistar rats. Metab Brain Dis 2021; 36:2511-2519. [PMID: 33978901 DOI: 10.1007/s11011-021-00749-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 04/29/2021] [Indexed: 12/11/2022]
Abstract
The present study compared the effect of donepezil only and combination of donepezil and gallic acid on oxidative status and cholinesterase activity in the brain of Wistar rats administered AlCl3 for 60 days. Twenty-eight rats (180 - 200 g) were arbitrarily distributed into four groups of seven animals apiece. Group 1 served as normal control and received distilled water throughout the study. Group 2 animals received only AlCl3 throughout the study while animals in groups 3 and 4 were administered donepezil only (10 mg/kg) and combination of donepezil (10 mg/kg) and gallic acid (50 mg/kg), respectively, in addition to AlCl3. Treatments were administered orally by gavage. At the end of the study, animals were sacrificed and activities of acetylcholinesterase, butyrylcholinesterase, superoxide dismutase (SOD) and catalase as well as levels of malondialdehyde (MDA), total thiol and nitric oxide (NO) were evaluated in the brain. Histopathological study was conducted on the hippocampus of experimental animals. Results showed that AlCl3 significantly (p < 0.05) increased brain activities of cholinesterases and levels of MDA and NO with a concomitant decrease in total thiol level as well as activities of SOD and catalase. Donepezil only and combination of donepezil and gallic acid reversed these alterations. Also, combination of donepezil and gallic acid significantly (p < 0.05) improved antioxidant status better than donepezil only. It could be concluded that a synergy might exist between gallic acid and donepezil especially in ameliorating oxidative stress associated with AlCl3-induced neurotoxicity.
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Affiliation(s)
- Tajudeen O Obafemi
- Department of Biochemistry, Afe Babalola University, PMB, Ado-Ekiti, 5454, Nigeria.
| | - Olutumise V Owolabi
- Medical Biochemistry Unit, College of Medicine and Health Sciences, Afe Babalola University, PMB, Ado-Ekiti, 5454, Nigeria
| | - Benjamin O Omiyale
- Medical Biochemistry Unit, College of Medicine and Health Sciences, Afe Babalola University, PMB, Ado-Ekiti, 5454, Nigeria
| | | | - Oluwafemi A Ojo
- Department of Biochemistry, Landmark University, PMB, Omu-aran, 1001, Nigeria
| | - Amos Onasanya
- Department of Biochemistry, Afe Babalola University, PMB, Ado-Ekiti, 5454, Nigeria
| | - Isaac A I Adu
- Medical Biochemistry Unit, College of Medicine and Health Sciences, Afe Babalola University, PMB, Ado-Ekiti, 5454, Nigeria
| | - Damilare Rotimi
- Department of Biochemistry, Landmark University, PMB, Omu-aran, 1001, Nigeria
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Nisa FY, Rahman MA, Hossen MA, Khan MF, Khan MAN, Majid M, Sultana F, Haque MA. Role of neurotoxicants in the pathogenesis of Alzheimer's disease: a mechanistic insight. Ann Med 2021; 53:1476-1501. [PMID: 34433343 PMCID: PMC8405119 DOI: 10.1080/07853890.2021.1966088] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/04/2021] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is the most conspicuous chronic neurodegenerative syndrome, which has become a significant challenge for the global healthcare system. Multiple studies have corroborated a clear association of neurotoxicants with AD pathogenicity, such as Amyloid beta (Aβ) proteins and neurofibrillary tangles (NFTs), signalling pathway modifications, cellular stress, cognitive dysfunctions, neuronal apoptosis, neuroinflammation, epigenetic modification, and so on. This review, therefore, aimed to address several essential mechanisms and signalling cascades, including Wnt (wingless and int.) signalling pathway, autophagy, mammalian target of rapamycin (mTOR), protein kinase C (PKC) signalling cascades, cellular redox status, energy metabolism, glutamatergic neurotransmissions, immune cell stimulations (e.g. microglia, astrocytes) as well as an amyloid precursor protein (APP), presenilin-1 (PSEN1), presenilin-2 (PSEN2) and other AD-related gene expressions that have been pretentious and modulated by the various neurotoxicants. This review concluded that neurotoxicants play a momentous role in developing AD through modulating various signalling cascades. Nevertheless, comprehension of this risk agent-induced neurotoxicity is far too little. More in-depth epidemiological and systematic investigations are needed to understand the potential mechanisms better to address these neurotoxicants and improve approaches to their risk exposure that aid in AD pathogenesis.Key messagesInevitable cascade mechanisms of how Alzheimer's Disease-related (AD-related) gene expressions are modulated by neurotoxicants have been discussed.Involvement of the neurotoxicants-induced pathways caused an extended risk of AD is explicited.Integration of cell culture, animals and population-based analysis on the clinical severity of AD is addressed.
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Affiliation(s)
- Fatema Yasmin Nisa
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Atiar Rahman
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Amjad Hossen
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Mohammad Forhad Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Md. Asif Nadim Khan
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Mumtahina Majid
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Farjana Sultana
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Areeful Haque
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Sarrouilhe D, Defamie N, Mesnil M. Is the Exposome Involved in Brain Disorders through the Serotoninergic System? Biomedicines 2021; 9:1351. [PMID: 34680468 PMCID: PMC8533279 DOI: 10.3390/biomedicines9101351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 11/24/2022] Open
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is a biogenic monoamine acting as a neurotransmitter in the central nervous system (CNS), local mediator in the gut, and vasoactive agent in the blood. It has been linked to a variety of CNS functions and is implicated in many CNS and psychiatric disorders. The high comorbidity between some neuropathies can be partially understood by the fact that these diseases share a common etiology involving the serotoninergic system. In addition to its well-known functions, serotonin has been shown to be a mitogenic factor for a wide range of normal and tumor cells, including glioma cells, in vitro. The developing CNS of fetus and newborn is particularly susceptible to the deleterious effects of neurotoxic substances in our environment, and perinatal exposure could result in the later development of diseases, a hypothesis known as the developmental origin of health and disease. Some of these substances affect the serotoninergic system and could therefore be the source of a silent pandemic of neurodevelopmental toxicity. This review presents the available data that are contributing to the appreciation of the effects of the exposome on the serotoninergic system and their potential link with brain pathologies (neurodevelopmental, neurodegenerative, neurobehavioral disorders, and glioblastoma).
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Affiliation(s)
- Denis Sarrouilhe
- Laboratoire de Physiologie Humaine, Faculté de Médecine et Pharmacie, 6 Rue de la Milétrie, Bât D1, TSA 51115, CEDEX 09, 86073 Poitiers, France
| | - Norah Defamie
- Laboratoire STIM, ERL7003 CNRS-Université de Poitiers, 1 Rue G. Bonnet–TSA 51106, CEDEX 09, 86073 Poitiers, France; (N.D.); (M.M.)
| | - Marc Mesnil
- Laboratoire STIM, ERL7003 CNRS-Université de Poitiers, 1 Rue G. Bonnet–TSA 51106, CEDEX 09, 86073 Poitiers, France; (N.D.); (M.M.)
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WIN55,212-2 Attenuates Cognitive Impairments in AlCl 3 + d-Galactose-Induced Alzheimer's Disease Rats by Enhancing Neurogenesis and Reversing Oxidative Stress. Biomedicines 2021; 9:biomedicines9091270. [PMID: 34572456 PMCID: PMC8465335 DOI: 10.3390/biomedicines9091270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/28/2021] [Accepted: 09/06/2021] [Indexed: 12/21/2022] Open
Abstract
Neurotransmission and cognitive dysfunctions have been linked to old age disorders including Alzheimer’s disease (AD). Aluminium is a known neurotoxic metal, whereas d-galactose (d-gal) has been established as a senescence agent. WIN55,212-2 (WIN), is a potent cannabinoid agonist which partially restores neurogenesis in aged rats. The current study aimed to explore the therapeutic potentials of WIN on Aluminium chloride (AlCl3) and d-gal-induced rat models with cognitive dysfunction. Healthy male albino Wistar rats weighing between 200–250 g were injected with d-gal 60 mg/kg intra peritoneally (i.p), while AlCl3 (200 mg/kg) was orally administered once daily for 10 consecutive weeks. Subsequently, from weeks 8–11 rats were co-administered with WIN (0.5, 1 and 2 mg/kg/day) and donepezil 1 mg/kg. The cognitive functions of the rats were assessed with a Morris water maze (MWM). Furthermore, oxidative stress biomarkers; malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH) and neurogenesis markers: Nestin and glial fibrillary acidic protein (GFAP) were also evaluated, as well as the histology of the hippocampus. The results revealed that rats exposed to AlCl3 and d-gal alone showed cognitive impairments and marked neuronal loss (p < 0.05) in their hippocampal conus ammonis 1 (CA1). Additionally, a significant decrease in the expressions of GFAP and Nestin was also observed, including increased levels of MDA and decreased levels of SOD and GSH. However, administration of WIN irrespective of the doses given reversed the cognitive impairments and the associated biochemical derangements. As there were increases in the levels SOD, GSH, Nestin and GFAP (p < 0.05), while a significant decrease in the levels of MDA was observed, besides attenuation of the aberrant cytoarchitecture of the rat’s hippocampi. The biochemical profiles of the WIN-treated rats were normal. Thus, these findings offer possible scientific evidence of WIN being an effective candidate in the treatment of AD-related cognitive deficits.
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Elevated IgG Antibody to Aluminum Bound to Human Serum Albumin in Patients with Crohn's, Celiac and Alzheimer's Disease. TOXICS 2021; 9:toxics9090212. [PMID: 34564363 PMCID: PMC8473134 DOI: 10.3390/toxics9090212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 12/24/2022]
Abstract
Aluminum is in our water and food, and is used as an adjuvant in vaccines. About 40% of the ingested dose accumulates within the intestinal mucosa, making the gut the main target of inflammation and autoimmunity; about 1% accumulates in the skeletal system and brain, inducing the cross-linking of amyloid-β-42 peptide and the formation of amyloid aggregates associated with Alzheimer's disease. To examine whether the accumulation of aluminum in the gut and brain tissues results in neoantigen formation, we bound aluminum compounds to human serum albumin. We used ELISA to measure IgG antibody in 94 different sera from healthy controls and 47 sera from each group of patients: anti-Saccharomyces cerevisiae antibody-positive (Crohn's), and positive for deamidated α-gliadin and transglutaminase-2 IgA antibodies (celiac disease), autoimmune disorders associated with intestinal tissue antigens. Because earlier studies have shown that aluminum exposure is linked to Alzheimer's disease etiology, and high aluminum content is detected in Alzheimer's patients' brain tissue, we also measured aluminum antibody in the blood of these patients. Additionally, we measured aluminum antibody in the sera of mixed connective tissue disease patients who were positive for antinuclear antibodies, and used them as disease controls. We found significant IgG antibody elevation against all three aluminum compounds in the sera of patients with Crohn's, celiac and Alzheimer's disease, but not in patients with mixed connective tissue disease. We concluded that aluminum ingestion and absorption from the GI tract and brain may contribute to Crohn's, celiac and Alzheimer's disease, but not to mixed connective tissue disease.
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Tenan MR, Nicolle A, Moralli D, Verbouwe E, Jankowska JD, Durin MA, Green CM, Mandriota SJ, Sappino AP. Aluminum Enters Mammalian Cells and Destabilizes Chromosome Structure and Number. Int J Mol Sci 2021; 22:ijms22179515. [PMID: 34502420 PMCID: PMC8431747 DOI: 10.3390/ijms22179515] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/20/2021] [Accepted: 08/26/2021] [Indexed: 12/28/2022] Open
Abstract
Chromosome instability (CIN) consists of high rates of structural and numerical chromosome abnormalities and is a well-known hallmark of cancer. Aluminum is added to many industrial products of frequent use. Yet, it has no known physiological role and is a suspected human carcinogen. Here, we show that V79 cells, a well-established model for the evaluation of candidate chemical carcinogens in regulatory toxicology, when cultured in presence of aluminum—in the form of aluminum chloride (AlCl3) and at concentrations in the range of those measured in human tissues—incorporate the metal in a dose-dependent manner, predominantly accumulating it in the perinuclear region. Intracellular aluminum accumulation rapidly leads to a dose-dependent increase in DNA double strand breaks (DSB), in chromosome numerical abnormalities (aneuploidy) and to proliferation arrest in the G2/M phase of the cell cycle. During mitosis, V79 cells exposed to aluminum assemble abnormal multipolar mitotic spindles and appear to cluster supernumerary centrosomes, possibly explaining why they accumulate chromosome segregation errors and damage. We postulate that chronic aluminum absorption favors CIN in mammalian cells, thus promoting carcinogenesis.
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Affiliation(s)
- Mirna R. Tenan
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, 1224 Chêne-Bougeries, Switzerland; (A.N.); (E.V.); (S.J.M.); (A.-P.S.)
- Correspondence: ; Tel.: +41-22-3050480
| | - Adeline Nicolle
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, 1224 Chêne-Bougeries, Switzerland; (A.N.); (E.V.); (S.J.M.); (A.-P.S.)
| | - Daniela Moralli
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK; (D.M.); (J.D.J.); (M.-A.D.); (C.M.G.)
| | - Emeline Verbouwe
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, 1224 Chêne-Bougeries, Switzerland; (A.N.); (E.V.); (S.J.M.); (A.-P.S.)
| | - Julia D. Jankowska
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK; (D.M.); (J.D.J.); (M.-A.D.); (C.M.G.)
| | - Mary-Anne Durin
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK; (D.M.); (J.D.J.); (M.-A.D.); (C.M.G.)
| | - Catherine M. Green
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK; (D.M.); (J.D.J.); (M.-A.D.); (C.M.G.)
| | - Stefano J. Mandriota
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, 1224 Chêne-Bougeries, Switzerland; (A.N.); (E.V.); (S.J.M.); (A.-P.S.)
| | - André-Pascal Sappino
- Laboratoire de Cancérogenèse Environnementale, Fondation des Grangettes, 1224 Chêne-Bougeries, Switzerland; (A.N.); (E.V.); (S.J.M.); (A.-P.S.)
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Abu-Taweel GM, Al-Mutary MG. Pomegranate juice reverses AlCl 3-Induced neurotoxicity and improves learning and memory in female mice. ENVIRONMENTAL RESEARCH 2021; 199:111270. [PMID: 33992638 DOI: 10.1016/j.envres.2021.111270] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/25/2021] [Accepted: 04/29/2021] [Indexed: 05/09/2023]
Abstract
BACKGROUND Aluminum is a neurotoxic element that can accumulate in the brain and cause neurodegenerative disorders. In addition, the antioxidants found in pomegranate juice (PJ) are much more than those existing in other fruits. It was proven to provide protection against neurodegenerative diseases. OBJECTIVES This experiment aimed to clarify the amelioration efficiency of PJ against aluminum chloride-induced neurobehavioral and biochemical disorders in female mice. METHODS The female mice were given oral administrations for 35 days as follows. The control group received tap water, the PJ groups received 20% and 40% pomegranate juice, the aluminum chloride (AlCl3) group was treated with 400 mg/kg AlCl3, and the last two groups received AlCl3 + 20% PJ and AlCl3 + 40% PJ, respectively. The neurobehavioral features were assessed by shuttle box, T-maze, and Morris water maze devices. Furthermore, the neurotransmitters and oxidative indicators in the brains of the female mice were determined at the end of experiment. RESULTS Significant effects of AlCl3 were observed on female mice in the body weight, during the behavioral tasks (shuttle box, T-maze, and Morris water maze), and in neurotransmitters and oxidative stress parameters. Pomegranate juice, especially at low concentrations, induced remarkable improvements in body weight, spatial memory and learning during T-maze, Morris water maze and shuttle box tasks, as well as in neurotransmitters and oxidative biomarkers in the AlCl3-treated female mice. CONCLUSION PJ reversed AlCl3-induced neurotoxicity and improved learning and memory in female mice. However, PJ contains a group of antioxidants that may be considered double-edged swords in the cellular redox status especially at high doses.
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Affiliation(s)
- Gasem M Abu-Taweel
- Department of Biology, College of Sciences, Jazan University, P.O. Box 2079, Jazan, 45142, Saudi Arabia
| | - Mohsen G Al-Mutary
- Department of Basic Sciences, College of Education, Imam Abdulrahman Bin Faisal University, P.O. Box 2375, Dammam, 14513, Saudi Arabia; Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia.
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Chen X, Zhang M, Ahmed M, Surapaneni KM, Veeraraghavan VP, Arulselvan P. Neuroprotective effects of ononin against the aluminium chloride-induced Alzheimer's disease in rats. Saudi J Biol Sci 2021; 28:4232-4239. [PMID: 34354404 PMCID: PMC8325004 DOI: 10.1016/j.sjbs.2021.06.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 01/10/2023] Open
Abstract
Alzheimer’s disease (AD) is a chronic neurodegenerative disease categorized by the deficiency in the cognition and memory. Approximately 50 million peoples has the AD, which is categorized by the deficiency in the cognition, memory and other kinds of cognitive dissention. The present exploration was designed to unveil the ameliorative properties of ononin against the aluminium chloride (AlCl3)-provoked AD in animals via the suppression of oxidative stress and neuroinflammation. AD was provoked to the Sprague Dawley rats through administering orally with 0.5 ml/100 g b.wt. of AlCl3 25 days and then supplemented with the 30 mg/kg of ononin orally for 25th day to 36th day. The behavioural changes were examined using open field and Morris Water Maze test. The acetylcholine esterase (AChE) activity was studied by standard method. The status of Aβ1-42, MDA, SOD, total antioxidant capacity (TAC) were quantified using respective assay kits. The interleukin(IL)-1β and TNF-α, BDNF, PPAR-γ, p38MAPK, and NF-κB/p65 status was quantified using respective assay kits. Brain histology was studied using microscope. The ononin treatment effectively modulated the AlCl3-triggered behavioural alterations in the AD animals. Ononin appreciably suppressed the AChE, Aβ1-42, and MDA and improved the SOD and TAC in the brain tissues of AD animals. The status of IL-1β, TNF-α, p38MAPK, and NF-κB were suppressed and the BDNF and PPAR-γ contents were elevated in the brain tissues of AD animals. The outcomes brain histology analysis proved the attenuate role of ononin. Our findings recommended that the ononin treatment could ameliorate the cognitive impairment, suppress the neuroinflammation and oxidative stress in the AD animals.
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Affiliation(s)
- Xiao Chen
- Second Department of Encephalopathy, Xi'an Encephalopathy Hospital of Traditional Chinese Medicine, 710032 Xi'an, Shaanxi, China
| | - Min Zhang
- Second Department of Encephalopathy, Xi'an Encephalopathy Hospital of Traditional Chinese Medicine, 710032 Xi'an, Shaanxi, China
| | - Mukhtar Ahmed
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Krishna Mohan Surapaneni
- Departments of Biochemistry, Molecular Virology, Clinical Skills & Simulation and Research, Panimalar Medical College Hospital & Research Institute, Varadharajapuram, Poonamallee, Chennai 600 123, Tamil Nadu, India
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600 077, India
| | - Palanisamy Arulselvan
- Scigen Research and Innovation Pvt. Ltd., Periyar Technology Business Incubator, Thanjavur, Tamil Nadu, India.,Muthayammal Centre for Advanced Research, Muthayammal College of Arts and Science, Rasipuram, Namakkal, Tamilnadu, India
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Srivastava S, Brighu U, Gupta AB. Performance assessment of pulsating floc blanket clarifiers and conventional clariflocculators in pilot-scale models. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:887-895. [PMID: 33176029 DOI: 10.1002/wer.1479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/26/2020] [Accepted: 11/01/2020] [Indexed: 06/11/2023]
Abstract
Continuous upflow pilot plants based on conventional clariflocculation (CC) and pulsating floc blanket clarification (PFBC) technologies were designed and fabricated for a capacity to treat about 8,000 L/day, to understand the fundamental differences in their functioning and assess their relative performance, especially under low turbidity conditions. Influent turbidity varying from 2 to 10 NTU was treated using coagulant alum, and efficiency of CC and PFBC in terms of average turbidity removal was found to be 23% and 48%, respectively. On observing this vast difference, it was postulated that total residual aluminum should also be lower in water treated from PFBC. Experiments and MLR analysis confirmed the hypothesis, with residual aluminum ranging from 0.055 to 0.040 mg/L and 0.036 mg/L to below detectable levels for CC and PFBC, respectively. These findings are of high significance, since minimization of residual aluminum in drinking water is a priority of WHO due to its reported neurotoxicity and can be complied with simple replacement of CC with PFBC. PRACTITIONER POINTS: Pulsating floc blanket clarifier (PFBC) performed better than conventional clariflocculator (CC) in terms of turbidity removal. Pulsating floc blanket allowed more effective utilization of coagulant alum, resulting in significantly lower residual aluminum in clarified water. Turbidity levels of influent and effluent are related to residual aluminum in treated water. PFBCs are more compact and modular, and can facilitate a good alternative to CCs.
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Affiliation(s)
- Shashank Srivastava
- Department of Civil Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Urmila Brighu
- Department of Civil Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Akhilendra Bhushan Gupta
- Department of Civil Engineering, Malaviya National Institute of Technology Jaipur, Jaipur, India
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Salkov VN, Khudoerkov RM. [The role of aluminum and lead in the development of Alzheimer's and Parkinson's diseases]. Arkh Patol 2021; 83:56-61. [PMID: 34041898 DOI: 10.17116/patol20218303156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The article summarizes the data available in the literature on the toxic effects of aluminum and lead on the human brain and assesses the relationship of these effects to the etiopathogenesis of the most common neurodegenerative diseases, such as Alzheimer's and Parkinson's diseases. The accumulation of ions of these metals in the brain structures leads to chronic intoxication that is manifested by the morphological signs that are typical for Alzheimer's disease, such as deposits of β-amyloid and τ-protein mainly in the frontal and temporal regions of the cortex, and for Parkinson's disease, such as degeneration of dopamine neurons in the substantia nigra and their accumulation of α-synuclein. The most likely forms of participation of aluminum and lead ions in the mechanisms of neurodegeneration are the replacement of bivalent metal ions necessary for brain functioning, oxidative stress initiation, epigenetic modifications of histones, and increased expression of noncoding ribonucleic acids.
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Affiliation(s)
- V N Salkov
- Research Center of Neurology, Moscow, Russia
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Perl T, Kunze-Szikszay N, Bräuer A, Quintel M, Roy T, Kerpen K, Telgheder U. Aluminium release and fluid warming: provocational setting and devices at risk. BMC Anesthesiol 2021; 21:163. [PMID: 34044771 PMCID: PMC8157702 DOI: 10.1186/s12871-021-01378-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/12/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Fluid warming, recommended for fluid rates of > 500 ml h-1, is an integral part of patient temperature management strategies. Fluid warming devices using an uncoated aluminium containing heating element have been reported to liberate aluminium resulting in critical aluminium concentrations in heated fluids. We investigated saline solution (0.9%), artificially spiked with organic acids to determine the influence of fluid composition on aluminium release using the uncoated enFlow® device. Additionally, the Level1® as a high volume fluid warming device and the ThermoSens® device were investigated with artificial spiked fluid at high risk for aluminum release and a clinically used crystalloid solution. RESULTS Saline solution spiked with lactate more than acetate, especially at a non neutral pH, led to high aluminium release. Next to the enFlow® device, aluminium release was observed for the Level1® device, but not for the coated ThermoSens®-device. CONCLUSION Uncoated aluminium containing fluid warming devices lead to potentially toxic levels of aluminium in heated fluids, especially in fluids with non-neutral pH containing organic acids and their salts like balanced electrolyte solutions.
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Affiliation(s)
- Thorsten Perl
- Department of General, Visceral and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, D- 37075, Goettingen, Germany.
| | - N Kunze-Szikszay
- Department of Anaesthesiology, University Medical Center Goettingen, Goettingen, Germany
| | - A Bräuer
- Department of Anaesthesiology, University Medical Center Goettingen, Goettingen, Germany
| | - M Quintel
- Department of Anaesthesiology, University Medical Center Goettingen, Goettingen, Germany
| | - T Roy
- Department of General, Visceral and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, D- 37075, Goettingen, Germany
| | - K Kerpen
- Faculty of Chemistry, Departments of Instrumental Analytical Chemistry, University Duisburg-Essen, Essen, Germany
| | - U Telgheder
- Faculty of Chemistry, Departments of Instrumental Analytical Chemistry, University Duisburg-Essen, Essen, Germany
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