1
|
Liang Z, Bao H, Yao Z, Li M, Chen C, Zhang L, Wang H, Guo Y, Ma Y, Yang X, Yu G, Zhang J, Xue C, Sun B, Mao C. The orientation of CpG conjugation on aluminum oxyhydroxide nanoparticles determines the immunostimulatory effects of combination adjuvants. Biomaterials 2024; 308:122569. [PMID: 38626556 DOI: 10.1016/j.biomaterials.2024.122569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/18/2024]
Abstract
In subunit vaccines, aluminum salts (Alum) are commonly used as adjuvants, but with limited cellular immune responses. To overcome this limitation, CpG oligodeoxynucleotides (ODNs) have been used in combination with Alum. However, current combined usage of Alum and CpG is limited to linear mixtures, and the underlying interaction mechanism between CpG and Alum is not well understood. Thus, we propose to chemically conjugate Alum nanoparticles and CpG (with 5' or 3' end exposed) to design combination adjuvants. Our study demonstrates that compared to the 3'-end exposure, the 5'-end exposure of CpG in combination adjuvants (Al-CpG-5') enhances the activation of bone-marrow derived dendritic cells (BMDCs) and promotes Th1 and Th2 cytokine secretion. We used the SARS-CoV-2 receptor binding domain (RBD) and hepatitis B surface antigen (HBsAg) as model antigens to demonstrate that Al-CpG-5' enhanced antigen-specific antibody production and upregulated cytotoxic T lymphocyte markers. Additionally, Al-CpG-5' allows for coordinated adaptive immune responses even at lower doses of both CpG ODNs and HBsAg antigens, and enhances lymph node transport of antigens and activation of dendritic cells, promoting Tfh cell differentiation and B cell activation. Our novel Alum-CPG strategy points the way towards broadening the use of nanoadjuvants for both prophylactic and therapeutic vaccines.
Collapse
Affiliation(s)
- Zhihui Liang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China; Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR China
| | - Hang Bao
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China
| | - Zhiying Yao
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Min Li
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Chen Chen
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China
| | - Lei Zhang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Huiyang Wang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Yiyang Guo
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Yubin Ma
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Xuecheng Yang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Ge Yu
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Jiancheng Zhang
- AIM Honesty Biopharmaceutical Co., Ltd, Dalian, 116100, PR China
| | - Changying Xue
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China.
| | - Bingbing Sun
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China.
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR China.
| |
Collapse
|
2
|
Ganhör C, Rezk M, Doppler C, Ruthmeier T, Wechselberger C, Müller M, Kotnik M, Puh Š, Messner B, Bernhard D. Aluminum, a colorful gamechanger: Uptake of an aluminum-containing food color in human cells and its implications for human health. Food Chem 2024; 442:138404. [PMID: 38237295 DOI: 10.1016/j.foodchem.2024.138404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 01/04/2024] [Accepted: 01/07/2024] [Indexed: 02/15/2024]
Abstract
Aluminum is added to many food colors to change their solubility. This study compares the aluminum-containing food color carmine with its aluminum-free version carminic acid (both E 120), hypothesizing that the addition of aluminum does not only change the color's solubility, but also its effects on human cells. We could show that carmine, but not carminic acid, is taken up by gastrointestinal Caco-2 and umbilical vein endothelial cells (HUVEC). Clear differences between gene expression profiles of Caco-2 cells exposed to carmine, carminic acid or control were shown. KEGG analysis revealed that carmine-specific genes suppress oxidative phosphorylation, and showed that this suppression is associated with neurodegenerative diseases such as Alzheimer and Parkinson disease. Furthermore, carmine, but not carminic acid, increased proliferation of Caco-2 cells. Our findings show that a food color containing aluminum induces different cellular effects compared to its aluminum-free form, which is currently not considered in EU legislation.
Collapse
Affiliation(s)
- Clara Ganhör
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Marlene Rezk
- Experimental Gynaecology, Obstetrics and Gynaecological Endocrinology, Johannes Kepler University Linz, Altenberger Strasse 69, 4040 Linz, Austria.
| | - Christian Doppler
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Teresa Ruthmeier
- Cardiac Surgery Research Laboratory, Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria.
| | - Christian Wechselberger
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Marina Müller
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Michaela Kotnik
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Špela Puh
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria.
| | - Barbara Messner
- Cardiac Surgery Research Laboratory, Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria.
| | - David Bernhard
- Division of Pathophysiology, Institute of Physiology and Pathophysiology, Medical Faculty, Johannes Kepler University Linz, Krankenhausstrasse 5, 4020 Linz, Austria; Clinical Research Institute for Cardiovascular and Metabolic Diseases, Medical Faculty, Johannes Kepler University Linz, Linz, Austria.
| |
Collapse
|
3
|
Unar AA, Kazi TG, Afridi HI, Baig JA, Lashari AA. Evaluate the aluminum concentrations in whey milk samples of cows from different areas using deep eutectic solvent-based ultrasound-assisted dispersive liquid-liquid microextraction method. Talanta 2024; 273:125847. [PMID: 38452590 DOI: 10.1016/j.talanta.2024.125847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 02/13/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024]
Abstract
This study investigates the contamination of cow milk with aluminum (Al) and its potential health implications, particularly for children. Cow milk samples were collected from both nonexposed and exposed areas in Sindh, based on the source of livestock drinking water (fresh canals and groundwater). An environmental friendly deep eutectic solvent (DES) was used with ultrasonic-assisted dispersive liquid-liquid microextraction (UDLLμE) to enrich trace amounts of Al in whey milk and water samples. The enriched samples were then analyzed using inductively coupled plasma optical emission spectrometry. Certified reference materials were employed to validate the methodology, and the experimental results exhibited acceptable conformity. The DES-based dispersive liquid-liquid microextraction method was environmental friendly, devoid of acids and oxidizing agents, and used safe and inexpensive components for routine trace metal analysis in diverse samples. The resulting data revealed that Al in whey milk samples was observed in the range of 31-45 %, corresponding to (160-270) μg L-1 and (700-1035) μg L-1 in nonexposed and exposed whole cow milk samples, respectively. Additionally, it was observed that milk boiling in Al utensil for 10-20 min enhanced the Al levels from 3 to 8% of its total contents in milk samples.
Collapse
Affiliation(s)
- Asif Ali Unar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, postal code 76080, Pakistan.
| | - Tasneem Gul Kazi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, postal code 76080, Pakistan.
| | - Hassan Imran Afridi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, postal code 76080, Pakistan.
| | - Jameel Ahmed Baig
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, postal code 76080, Pakistan.
| | - Ayaz Ali Lashari
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, postal code 76080, Pakistan.
| |
Collapse
|
4
|
Mantz SE, DeVries MJ. Aluminosis pneumoconiosis presenting as hyperdense lung nodules. Radiol Case Rep 2024; 19:2347-2350. [PMID: 38532909 PMCID: PMC10963895 DOI: 10.1016/j.radcr.2024.02.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024] Open
Abstract
We present the case of a 66-year-old man who presented with new incidentally found hyperdense pulmonary nodules. Further workup with a PET/CT revealed that the nodules were FDG-avid and that there was associated hypermetabolic lymphadenopathy. Due to his history of aluminum toxicity from welding, aluminosis pneumoconiosis was suspected. Biopsy of one of the nodules was done which reinforced this diagnosis. Aluminosis pneumoconiosis is a rare occupational lung disease mostly associated with industrial workers with prolonged unprotected exposure to fine aluminum dust. Prognosis depends on the duration and intensity of exposure, and there is no definitive treatment other than eliminating further exposure.
Collapse
Affiliation(s)
- Sara E. Mantz
- University of Nebraska Medical Center, Omaha, NE, USA
| | | |
Collapse
|
5
|
Song J, Hao J, Lu Y, Ding X, Li M, Xin Y. Increased m 6A modification of BDNF mRNA via FTO promotes neuronal apoptosis following aluminum-induced oxidative stress. Environ Pollut 2024; 349:123848. [PMID: 38548149 DOI: 10.1016/j.envpol.2024.123848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/07/2024]
Abstract
N6-methyladenosine (m6A) RNA modification is a new epigenetic molecular mechanism involved in various biological or pathological processes. Exposure to aluminum (Al) has been considered to promote neuronal apoptosis resulting in cognitive dysfunction, yet whether m6A modification participates in the underlying mechanism remains largely unknown. Here, rats exposed to aluminum-maltolate [Al(mal)3] for 90 days showed impaired learning and memory function and elevated apoptosis, which were related to the increased m6A level and decreased fat mass and obesity-associated protein (FTO, an m6A demethylase) in the hippocampus. Accordingly, similar results presented in PC12 cells following Al(mal)3 treatment and FTO overexpression relieved the increased apoptosis and m6A level in vitro. Next, we identified brain-derived neurotrophic factor (BDNF) as the functional downstream target of FTO in a m6A-dependent manner. Furthermore, it was found that as the onset of aluminum neurotoxicity, oxidative stress may be the upstream regulator of FTO in aluminum-induced apoptosis. Taken together, these results suggest that increased m6A modification of BDNF mRNA via FTO promotes neuronal apoptosis following aluminum-induced oxidative stress.
Collapse
Affiliation(s)
- Jing Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China.
| | - Jiarui Hao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China
| | - Yang Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Xiaohui Ding
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; MOE Key Laboratory of coal environmental pathogenicity and prevention, Taiyuan, China
| | - Mujia Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Yulu Xin
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China; NHC Key Laboratory of Pneumoconiosis, Taiyuan, China
| |
Collapse
|
6
|
Wenzel JO, Werner J, Allgaier A, van Slageren J, Fernández I, Unterreiner AN, Breher F. Visible-Light Activation of Diorganyl Bis(pyridylimino) Isoindolide Aluminum(III) Complexes and Their Organometallic Radical Reactivity. Angew Chem Int Ed Engl 2024; 63:e202402885. [PMID: 38511969 DOI: 10.1002/anie.202402885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/14/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
We report on the synthesis and characterization of a series of (mostly) air-stable diorganyl bis(pyridylimino) isoindolide (BPI) aluminum complexes and their chemistry upon visible-light excitation. The redox non-innocent BPI pincer ligand allows for efficient charge transfer homolytic processes of the title compounds. This makes them a universal platform for the generation of carbon-centered radicals. The photo-induced homolytic cleavage of the Al-C bonds was investigated by means of stationary and transient UV/Vis spectroscopy, spin trapping experiments, as well as EPR and NMR spectroscopy. The experimental findings were supported by quantum chemical calculations. Reactivity studies enabled the utilization of the aluminum complexes as reactants in tin-free Giese-type reactions and carbonyl alkylations under ambient conditions, which both indicated radical-polar crossover behavior. A deeper understanding of the physical fundamentals and photochemical process was provided, furnishing in turn a new strategy to control the reactivity of bench-stable aluminum organometallics.
Collapse
Affiliation(s)
- Jonas O Wenzel
- Karlsruhe Institute of Technology (KIT), Institute of Inorganic Chemistry (AOC), Engesserstraße 15, 76131, Karlsruhe, Germany
| | - Johannes Werner
- Karlsruhe Institute of Technology (KIT), Institute of Physical Chemistry (IPC), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Alexander Allgaier
- University of Stuttgart, Institute of Physical Chemistry, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Joris van Slageren
- University of Stuttgart, Institute of Physical Chemistry, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Israel Fernández
- Universidad Complutense de Madrid, Facultad de Ciencias Químicas, 28040, Madrid, Spain
| | - Andreas-Neil Unterreiner
- Karlsruhe Institute of Technology (KIT), Institute of Physical Chemistry (IPC), Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Frank Breher
- Karlsruhe Institute of Technology (KIT), Institute of Inorganic Chemistry (AOC), Engesserstraße 15, 76131, Karlsruhe, Germany
| |
Collapse
|
7
|
Peng X, Zhang X, Li Z, Zhang S, Zhang X, Zhang H, Lin Q, Li X, Zhang L, Ge F, Wu Z, Liu B. Unraveling the ecological mechanisms of Aluminum on microbial community succession in epiphytic biofilms on Vallisneria natans leaves: Novel insights from microbial interactions. J Hazard Mater 2024; 469:133932. [PMID: 38484659 DOI: 10.1016/j.jhazmat.2024.133932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 04/07/2024]
Abstract
The extensive use of aluminum (Al) poses an escalating ecological risk to aquatic ecosystems. The epiphytic biofilm on submerged plant leaves plays a crucial role in the regulation nutrient cycling and energy flow within aquatic environments. Here, we conducted a mesocosm experiment aimed at elucidating the impact of different Al concentrations (0, 0.6, 1.2, 2.0 mg/L) on microbial communities in epiphytic biofilms on Vallisneria natans. At 1.2 mg/L, the highest biofilms thickness (101.94 µm) was observed. Al treatment at 2.0 mg/L significantly reduced bacterial diversity, while micro-eukaryotic diversity increased. Pseudomonadota and Bacteroidota decreased, whereas Cyanobacteriota increased at 1.2 mg/L and 2.0 mg/L. At 1.2 and 2.0 mg/L. Furthermore, Al at concentrations of 1.2 and 2.0 mg/L enhanced the bacterial network complexity, while micro-eukaryotic networks showed reduced complexity. An increase in positive correlations among microbial co-occurrence patterns from 49.51% (CK) to 57.05% (2.0 mg/L) was indicative of augmented microbial cooperation under Al stress. The shift in keystone taxa with increasing Al concentration pointed to alterations in the functional dynamics of microbial communities. Additionally, Al treatments induced antioxidant responses in V. natans, elevating leaf reactive oxygen species (ROS) content. This study highlights the critical need to control appropriate concentration Al concentrations to preserve microbial diversity, sustain ecological functions, and enhance lake remediation in aquatic ecosystems.
Collapse
Affiliation(s)
- Xue Peng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Xiaowen Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuxi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Shuxian Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinyi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haokun Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingwei Lin
- College of Life Sciences, Henan Normal University, Xinxiang 453007, China
| | - Xia Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Lu Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Fangjie Ge
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| |
Collapse
|
8
|
Scher JA, Foley B, Murialdo M, Hao Y, Heo TW, Weitzner SE, Aubry S, Kroonblawd MP. Predicted Fracture Tendency of Naturally Occurring Aluminum Surface Coatings under Tensile Loading. ACS Appl Mater Interfaces 2024. [PMID: 38703131 DOI: 10.1021/acsami.3c18840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Abstract
Naturally occurring coatings on aluminum metal, such as its oxide or hydroxide, serve to protect the material from corrosion. Understanding the conditions under which these coatings mechanically fail is therefore expected to be an important aspect of predictive models for aluminum component lifetimes. To this end, we develop and apply a molecular dynamics (MD) modeling framework for conducting tension tests that is capable of isolating factors governing the mechanical strength as a function of coating chemistry, defect morphology, and variables associated with the loading path. We consider two representative materials, including γ-Al2O3 and γ-Al(OH)3 (i.e., oxide and hydroxide), both of which form readily as aluminum surface coatings. Our results indicate that defects have a significant bearing on the strength of aluminum oxide, with grain boundaries serving to reduce the strain at failure from εzz = 0.300 to 0.219, relative to perfect single crystal. Our simulations also predict that porosity lowers the elastic stiffness and yield strength of the oxide. Relative to perfect crystal, we find porosity factors of 5%, 10% and 20% decrease the yield stress by 26%, 36% and 53%, respectively. MD predicts that perfect hydroxide and oxide single crystal have respective strains at failure of 0.08 and 0.31 under tensile uniaxial strain loading, and that the corresponding yield stresses are respectively 1.6 and 11.1 GPa. These data indicate that the hydroxide is substantially more susceptible to mechanical failure than the oxide. Our results, coupled with literature findings that indicate hot and humid conditions favor formation of hydroxide and defective oxide coatings, indicate the potential for a complicated dependence of aluminum corrosion susceptibility and stress corrosion cracking on aging history.
Collapse
Affiliation(s)
- Jeremy A Scher
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Brandon Foley
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Maxwell Murialdo
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Yue Hao
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Tae Wook Heo
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Stephen E Weitzner
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Sylvie Aubry
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| | - Matthew P Kroonblawd
- Lawrence Livermore National Laboratory, Livermore, California 94550 United States
| |
Collapse
|
9
|
Hiller J, Göen T, Drexler H, Berking C, Wagner N. Elevated aluminum excretion in patients by long-term subcutaneous immunotherapy - A cross-sectional case-control study. Int J Hyg Environ Health 2024; 258:114337. [PMID: 38461738 DOI: 10.1016/j.ijheh.2024.114337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/19/2024] [Accepted: 02/06/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Aluminum (Al) adjuvants have been used in vaccines and subcutaneous immunotherapy (SCIT) for decades. Despite indisputable neurotoxic properties of Al, there is no clear evidence of a causal relationship between their use and any neurotoxic side effects. However, recent rat studies have shown an accumulation of Al from adjuvants in tissues, especially in bones. OBJECTIVES Since the human toxicokinetics of Al-adjuvants are poorly understood, this study aimed to evaluate whether up-dosed or long-term SCIT with Al-coupled extracts leads to increased Al load in humans. METHODS This observational cross-sectional case-control study explored Al excretion in hymenoptera venom allergy patients recruited in 2020 before initiation (n = 10) and during ongoing (n = 12) SCIT with Al-based preparations. Urine samples were collected before and 24 h after the SCIT injections and analyzed for aluminum content by using atomic absorption spectrometry. The cumulative administered Al dose was extracted from patient records. Patients receiving long-term immunotherapy were treated between 2.8 and 13.6 years (mean 7.1). Other potential sources of Al exposure were surveyed. RESULTS Patients who had received Al-coupled immunotherapy for several years showed significantly (p < 0.001) higher Al excretion than the controls at initiation of immunotherapy (mean 18.2 μg/gC vs. 7.9 μg/gC) and predominantly (73%) were above the 95th percentile of the general populations' exposure (>15 μg/gC), however, without reaching levels of toxicological concern (>50 μg/gC). Taking both groups together excreted Al levels correlated with the cumulative administered Al dose from SCIT (linear regression: Alurine = 8.258 + 0.133*Alcum; p = 0.001). DISCUSSION These results suggest a relevant iatrogenic contribution of long-term SCIT to human internal Al burden and potential accumulation. Considering the medical benefits of Al-adjuvants and SCIT a differentiated risk-benefit analysis is needed. For certain scenarios of potential toxicological concern in clinical practice biomonitoring might be advisable.
Collapse
Affiliation(s)
- Julia Hiller
- Institute and Outpatient Clinic of Occupational, Social, and Environmental Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany.
| | - Thomas Göen
- Institute and Outpatient Clinic of Occupational, Social, and Environmental Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany.
| | - Hans Drexler
- Institute and Outpatient Clinic of Occupational, Social, and Environmental Medicine, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9-11, 91054, Erlangen, Germany.
| | - Carola Berking
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Deutsches Zentrum Immuntherapie (DZI), Ulmenweg 18, 91054, Erlangen, Germany.
| | - Nicola Wagner
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Deutsches Zentrum Immuntherapie (DZI), Ulmenweg 18, 91054, Erlangen, Germany.
| |
Collapse
|
10
|
Li H, Liu J, Nong W, Shen M, Dou S, Sun S, Wang J. Aluminum exposure impairs oocyte quality via subcellular structure disruption and DNA damage-related apoptosis in mice. J Environ Sci (China) 2024; 139:308-319. [PMID: 38105057 DOI: 10.1016/j.jes.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 12/19/2023]
Abstract
Aluminum (Al) can lead to an exposure of creature in varieties ways for its universality, and it could disturb normal physiological metabolism, with the damage to multisystem including reproduction. Since the oocyte quality is critical for female reproduction, we inspected the toxicity of Al on mouse oocyte maturation. We constructed in vitro exposure mouse model, and we found that 5 mmol/L Al had adverse effects on oocyte maturation by impairing organelle and cytoskeleton. Aberrant spindle and misaligned chromosomes which might be considered to be caused by elevated levels of acetylation, as well as abnormal distribution of actin dynamics could hinder normal meiosis of oocytes. Organelle dysfunction indicated that Al affected proteins synthesis, transport and digestion, which would further damage oocyte maturation. In order to explore the mechanism of Al toxicity, our further investigation demonstrated that Al caused mitochondrial dysfunction and imbalance calcium homeostasis, resulting in limited energy supply. Moreover, high level of reactive oxygen species, DNA damage and apoptosis caused by oxidative stress were also the manifestation of Al toxicity on oocytes. In conclusion, our study provided the evidence that Al exposure affected oocyte quality through its effects on spindle organization, actin dynamics, organelle function and the induction of DNA damage-related apoptosis with mouse model.
Collapse
Affiliation(s)
- Hongge Li
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jingcai Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Weihua Nong
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China
| | - Mengying Shen
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China
| | - Sheng Dou
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China
| | - Shaochen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Junli Wang
- The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China; School of Medical Laboratory, Youjiang Medical University for Nationalities, Guangxi 533000, China; Industrial College of Biomedicine and Health Industry, Youjiang Medical University for Nationalities, Guangxi 533000, China; Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Guangxi 533000, China.
| |
Collapse
|
11
|
Dakhem M, Ghanati F, Afshar Mohammadian M, Sharifi M. Effective biosorption of Al ions from drinking water by lignocellulosic biomass rice straw. Int J Phytoremediation 2024; 26:1087-1098. [PMID: 38093655 DOI: 10.1080/15226514.2023.2289588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
High concentration of aluminum (Al) in drinking water is a major intake source of it and can result in serious diseases. Rice straw (RS) as lignocellulosic biomasses has great potential to peak up metal ions from aqueous environment, however, feasibility of Al3+ removal by RS has not been investigated yet. The present study aimed to evaluate the capacity of RS as a novel biosorbent for Al3+ from drinking water. Biosorption characteristics of RS were surveyed through several biological and physiochemical techniques. Additionally, isotherm, kinetic and thermodynamic studies were evaluated using various common models. BET profiles revealed the presence of textural mesoporosity on heterogeneous surface, which leading to improve the biosorption capacity. SEM-EDS analysis confirmed the morphological changes as irregularly particles of Al3+ on external surface via physical mechanism. The results of bioassays and FTIR analysis showed carboxylic and hydroxyl groups in lignin and pectin as the main Al3+ binding site. The batch experimental results showed the maximum biosorption capacity of 283.09 mg/g and removal efficiency of 94.86% for Al3+ at biosorbent dosage of 0.05 g/100 mL, contact time of 50 min, pH 7.5, and temperature of 30 °C. The Freundlich model has the best match and suggests the biosorption process as a multi-layer. According to the results of free activation energy, biosorption process was also physical. As thermodynamic result, the biosorption behavior was found spontaneous and endothermic. Consequently, results showed RS as an economical biosorbent for reducing Al3+ of drinking water. Meanwhile, it can be considered as one of the most appropriate methods for management of rice paddies waste.
Collapse
Affiliation(s)
- Masoomeh Dakhem
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), Tehran, Iran
| | - Faezeh Ghanati
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), Tehran, Iran
| | | | - Mohsen Sharifi
- Department of Plant Biology, Faculty of Biological Science, Tarbiat Modares University (TMU), Tehran, Iran
| |
Collapse
|
12
|
Liu M, Liu X, Graham NJD, Yu W. Uncovering the neglected role of anions in trivalent cation-based coagulation processes. Water Res 2024; 254:121352. [PMID: 38401286 DOI: 10.1016/j.watres.2024.121352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/08/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
Coagulation efficiency is heavily contingent upon a profound comprehension of the underlying mechanisms, facilitated by the evolution of coagulation theory. However, the role of anions, prevalent components in raw and wastewaters, has been relatively overlooked in this context. To address this gap, this study has investigated the impact of three common anions (i.e., chloride, sulfate, and phosphate) on Al-based coagulation. The results have shown that the influence of anions on coagulation depends predominantly on their ability to compete with hydroxyl groups throughout the entire coagulation process, encompassing hydrolysis, aggregation, and the growth of large flocs. Moreover, this competition is subject to the dual influence of both anion concentration and hydroxyl concentration (i.e., pH). The results have revealed the intricate interplay between anions and coagulants, their impact on floc structure, and their importance in optimizing coagulation efficiency and ensuring the production of high-quality water.
Collapse
Affiliation(s)
- Mengjie Liu
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xun Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Nigel J D Graham
- Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Wenzheng Yu
- Key Laboratory of Drinking Water Science and Technology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| |
Collapse
|
13
|
Hara F, Mizuyama N, Fujino T, Shrestha AK, Meetiyagoda TAOK, Takada S, Saji H, Mukai T, Hagimori M. Development of a water-soluble fluorescent Al 3+ probe based on phenylsulfonyl-2-pyrone in biological systems. Anal Chim Acta 2024; 1299:342436. [PMID: 38499421 DOI: 10.1016/j.aca.2024.342436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/20/2024] [Accepted: 02/27/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Al exists naturally in the environment and is an important component in acidic soils, which harm almost all plants. Furthermore, Al is widely used in food additives, cosmetics, and medicines, resulting in living organisms ingesting traces of Al orally or dermally every day. Accordingly, Al accumulates in the body, which can cause negative bioeffects and diseases, and this concern is gaining increasing attention. Therefore, to detect and track Al in the environment and in living organisms, the development of novel Al-selective probes that are water-soluble and exhibit fluorescence at long wavelengths is necessary. RESULTS In this study, an Al3+-selective fluorescent probe PSP based on a novel pyrone molecule was synthesized and characterized to detect and track Al in biological systems. PSP exhibited fluorescence enhancement at 580 nm in the presence of Al3+ in aqueous media. Binding analysis using Job's plot and structural analysis using 1H NMR showed that PSP formed a 1:1 complex with Al3+ at the two carbonyl groups of the dimethyl malonate of the pyrone ring. Upon testing in biological systems, PSP showed good cell membrane permeability, detected intracellular Al3+ in human breast cancer cells (MDA-MB-231), and successfully imaged accumulated Al3+ in Microcystis aeruginosa and the larvae of Rheocricotopus species. SIGNIFICANCE The novel Al3+-selective fluorescent probe PSP is highly effective and is expected to aid in elucidating the role of Al3+ in the environment and living organisms.
Collapse
Affiliation(s)
- Fumiko Hara
- Laboratory of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyubancho, Nishinomiya, 663-8179, Japan
| | - Naoko Mizuyama
- Division of Medical Innovation, Translational Research Center for Medical Innovation, 1-5-4 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Takeshi Fujino
- Department of Environmental Science and Technology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan; Strategic Research Area for Sustainable Development in East Asia, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Ashok Kumar Shrestha
- Department of Environmental Science and Technology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | | | - Shinya Takada
- Laboratory of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyubancho, Nishinomiya, 663-8179, Japan
| | - Hideo Saji
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Takahiro Mukai
- Department of Biophysical Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita Machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Masayori Hagimori
- Laboratory of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyubancho, Nishinomiya, 663-8179, Japan.
| |
Collapse
|
14
|
Oezen G, Kraus L, Schentarra EM, Bolten JS, Huwyler J, Fricker G. Aluminum and ABC transporter activity. Environ Toxicol Pharmacol 2024; 108:104451. [PMID: 38648870 DOI: 10.1016/j.etap.2024.104451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/06/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Aluminum is the third most common element on Earth´s crust and despite its wide use in our workaday life it has been associated with several health risks after overexposure. In the present study the impact of aluminum salts upon ABC transporter activity was studied in the P-GP-expressing human blood-brain barrier cell line hCMEC/D3, in MDCKII cells overexpressing BCRP and MRP2, respectively, and in freshly isolated, functionally intact kidney tubules from Atlantic killifish (Fundulus heteroclitus), which express the analog ABC transporters, P-gp, Bcrp and Mrp2. In contrast to previous findings with heavy metals salts (cadmium(II) chloride or mercury(II) chloride), which have a strong inhibitory effect on ABC transporter activity, or zinc(II) chloride and sodium arsenite, which have a stimulatory effect upon ABC transport function, the results indicate no modulatory effect of aluminum salts on the efflux activity of the human ABC transporters P-GP, BCRP and MRP2 nor on the analog transporters P-gp, Bcrp and Mrp2.
Collapse
Affiliation(s)
- Goezde Oezen
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Lisa Kraus
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Eva-Maria Schentarra
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States
| | - Jan Stephan Bolten
- Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States; Department of Pharmaceutical Sciences, University of Basel, Basel 4056, Switzerland
| | - Joerg Huwyler
- Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States; Department of Pharmaceutical Sciences, University of Basel, Basel 4056, Switzerland
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls University, Heidelberg 69120, Germany; Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672, United States.
| |
Collapse
|
15
|
Dankert F, Hevia E. Synthesis and Modular Reactivity of Low Valent Al/Zn Heterobimetallics Supported by Common Monodentate Amides. Chemistry 2024; 30:e202304336. [PMID: 38189633 DOI: 10.1002/chem.202304336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
Recent advances on low valent main group metal chemistry have shown the excellent potential of heterobimetallic complexes derived from Al(I) to promote cooperative small molecule activation processes. A signature feature of these complexes is the use of bulky chelating ligands which act as spectators providing kinetic stabilization to their highly reactive Al-M bonds. Here we report the synthesis of novel Al/Zn bimetallics prepared by the selective formal insertion of AlCp* into the Zn-N bond of the utility zinc amides ZnR2 (R=HMDS, hexamethyldisilazide; or TMP, 2,2,6,6-tetramethylpiperidide). By systematically assessing the reactivity of the new [(R)(Cp*)AlZn(R)] bimetallics towards carbodiimides, structural and mechanistic insights have been gained on their ability to undergo insertion in their Zn-Al bond. Disclosing a ligand effect, when R=TMP, an isomerization process can be induced giving [(TMP)2AlZn(Cp*)] which displays a special reactivity towards carbodiimides and carbon dioxide involving both its Al-N bonds, leaving its Al-Zn bond untouched.
Collapse
Affiliation(s)
- Fabian Dankert
- Department für Chemie, Biochemie und Pharmazie, Universität Bern, Freiestraße 3, Bern, 3012, Switzerland
| | - Eva Hevia
- Department für Chemie, Biochemie und Pharmazie, Universität Bern, Freiestraße 3, Bern, 3012, Switzerland
| |
Collapse
|
16
|
Jayapriya S, Ebenazer AF, Sampathkumar N, Rajesh J, Rajagopal G. Chromene Carbohydrazide- Schiff Base as a Highly Selective Turn-Off Fluorescence Chemosensor for In 3+ Ion and its Application. J Fluoresc 2024:10.1007/s10895-024-03655-3. [PMID: 38460096 DOI: 10.1007/s10895-024-03655-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 02/28/2024] [Indexed: 03/11/2024]
Abstract
A new 7-(diethylamino)-2-oxo-2 H-chromene-3-carbohydrazide design to synthesize a simple Schiff-base condition. The synthesized molecules' (probe L) photophysical properties were investigated in various solvent systems and solvent-poor-solvent assays. Probe L exhibits the absorbance band at 440 nm and the emission band at 488 nm in DMSO: H2O (7:3, v/v). Further, probe L shows selective turn-off emission recognition of In3+ ions in DMSO: H2O (7:3, pH = 7.4). By Job's plot and ESI mass analysis, probe L forms a 1:2 stoichiometry complex with an estimated association constant of 4.04 × 104 M- 2 with In3+ ions. Metal induces CHEQ (chelation-caused fluorescence quenching) to reduce the intensity of probe L's emission, and the estimated quenching constant was 4.52 × 104 M- 1. The limit of detection was found to be 5.93 nM; the time response of the sensor is instantaneous, and its reversible nature was confirmed using EDTA additions. Solid substrates (test strips) were designed and tested for fast, reliable, user-friendly, and real-time sensing of In3+ ions for on-site applications. The binding mechanism of probe L with In3+ ions was investigated using 1H NMR titration and DFT/TD-DFT studies.
Collapse
Affiliation(s)
- S Jayapriya
- Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur, 641 602, Tamil Nadu, India
- Department of Chemistry, Sri Shakthi Institute of Engineering and Technology, Coimbatore, 641 062, Tamil Nadu, India
| | - A Franklin Ebenazer
- Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur, 641 602, Tamil Nadu, India
| | - N Sampathkumar
- Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur, 641 602, Tamil Nadu, India
| | - J Rajesh
- Department of Chemistry, Saveetha School of Engineering, Institute of Medical and Technical Science, Saveetha University, Chennai, 602 105, Tamil Nadu, India
| | - G Rajagopal
- Post-Graduate and Research Department of Chemistry, Government Arts College (Autonomous), Coimbatore, 641 018, Tamil Nadu, India.
| |
Collapse
|
17
|
Werner L, Radius U. How to Decarbonize N-Heterocyclic Carbenes (NHCs): The simple Alane Adducts (NHC) ⋅ AlR 3 (R=H, Me, Et). Angew Chem Int Ed Engl 2024:e202403639. [PMID: 38446008 DOI: 10.1002/anie.202403639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
The reaction of the amine-stabilized alane (NMe3) ⋅ AlH3 1 with the backbone-saturated N-heterocyclic carbene (NHC) SIDipp (SIDipp=1,3-bis-{2,6-di-iso-propyl-phenyl}-imidazolidin-2-ylidene) at 0 °C yielded the NHC alane adduct (SIDipp) ⋅ AlH3 2. Reaction at elevated temperatures or prolonged reaction at room temperature gave the product of a ring expansion reaction (RER) of the NHC, (NMe3) ⋅ AlH(RER-SIDippH2) 3 ⋅ (NMe3). Subsequent reaction of the latter with sterically less hindered NHCs (IMeMe {=1,3,4,5-tetramethyl-imidazolin-2-ylidene}, IiPrMe {=1,3-di-iso-propyl-4,5-dimethyl-imidazolin-2-ylidene}, and IiPr {=1,3-di-iso-propyl-imidazolin-2-ylidene}) afforded the NHC-stabilized RER-products (NHC) ⋅ AlH(RER-SIDippH2) 3 ⋅ (NHC) (NHC=IMeMe, IiPrMe, IiPr), while no reaction was observed with the sterically more demanding NHCs IDipp (=1,3-bis-{2,6-di-iso-propyl-phenyl}-imidazolin-2-ylidene), SIDipp and ItBu (=1,3-di-tert-butyl-imidazolin-2-ylidene). The compounds 3 ⋅ (NHC) were also obtained starting from (SIDipp) ⋅ AlH3 2 and NHC at room temperature. Heating solutions of (SIDipp) ⋅ AlH3 2 without additional base to 95 °C resulted in decarbonization of the NHC and substitution of the carbene carbon atom with aluminum hydride under loss of ethene. Subsequent dimerization afforded cis-[AlH{μ-N(Dipp)CH2CH2N(Dipp)}]2 4_dimer. Heating solutions of the NHC-ligated aluminum alkyls (SIDipp) ⋅ AlR3 2R (R=Me, Et) to 145 °C instead led to complete scission of the NHC backbone with evolution of ethene and isolation of the dialkylaluminium(III) amidinates {DippNC(R)NDipp}AlR2 5R (R=Me, Et).
Collapse
Affiliation(s)
- Luis Werner
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Udo Radius
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| |
Collapse
|
18
|
Ali FEM, Badran KSA, Baraka MA, Althagafy HS, Hassanein EHM. Mechanism and impact of heavy metal- aluminum (Al) toxicity on male reproduction: Therapeutic approaches with some phytochemicals. Life Sci 2024; 340:122461. [PMID: 38286208 DOI: 10.1016/j.lfs.2024.122461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/11/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
Heavy metals are ubiquitous environmental toxicants that have been known to have a serious effect on human and animal health. Aluminum (Al) is a widely distributed metal in nature. Al exposure has a detrimental impact on human fertility. This review focused on Al-induced male reproductive toxicity and the potential therapeutic approaches with some phytochemicals. Data from the literature showed that Al exposure is accompanied by a drastic decline in blood levels of FSH, LH, and testosterone, reduced sperm count, and affected sperm quality. Al exposure at high levels can cause oxidative stress by increasing ROS and RNS production, mediated mainly by downregulating Nrf2 signaling. Moreover, several investigations demonstrated that Al exposure evoked inflammation, evidenced by increased TNF-α and IL-6 levels. Additionally, substantial evidence concluded the key role of apoptosis in Al-induced testicular toxicity mediated by upregulating caspase-3 and downregulating Bcl2 protein. The damaging effects of Al on mitochondrial bioenergetics are thought to be due to the excessive generation of free radicals. This review helps to clarify the main mechanism involved in Al-associated testicular intoxication and the treatment strategy to attenuate the notable harmful effects on the male reproductive system. It will encourage clinical efforts to target the pathway involved in Al-associated testicular intoxication.
Collapse
Affiliation(s)
- Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
| | - Khalid S A Badran
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Mohammad A Baraka
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| | - Hanan S Althagafy
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt
| |
Collapse
|
19
|
Shang N, Li X, Zhang L, Wang S, He C, Zhang L, Niu Q, Zheng X. Zinc as a Mediator Through the ROCK1 Pathway of Cognitive Impairment in Aluminum-Exposed Workers: A Clinical and Animal Study. Biol Trace Elem Res 2024:10.1007/s12011-024-04119-2. [PMID: 38407795 DOI: 10.1007/s12011-024-04119-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
Aluminum (Al) exposure was implicated in neurodegenerative diseases and cognitive impairment, yet the involvement of zinc (Zn) and its mechanism in Al-induced mild cognitive impairment (MCI) remains poorly understood. The objective is to explore the role of Zn in Al-induced cognitive impairment and its potential mechanisms. Montreal cognitive assessment (MoCA) test scores and serum Al, Zn from Al industry workers were collected. A mediation analysis was performed to evaluate the role of serum Zn among serum Al and MoCA test scores. Subsequently, an Al-exposure study was conducted on a rat model categorized into control, low-, medium-, and high-dose groups. After a Morris Water Maze test and detection of Al, Zn content in the hippocampus, integrated transcriptomic and proteomic analyses between the control group and the high-dose group were performed to identify the differentially expressed genes (DEPs), proteins (DEPs), and pathways. To corroborate these findings, quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting (WB) were selected to identify the gene and protein results. Zn overall mediates the relationship between serum Al and cognitive function (mediation effect 17.82%, effect value = - 0.0351). In the Al-exposed rat model, 734 DEGs, 18 miRNAs, 35 lncRNAs, 64 circRNAs, and 113 DEPs were identified between the high-dose group and the control group. Among them, ROCK1, DMD, and other four DEPs were identified as related to zinc finger proteins (ZNF). Co-enrichment analyses of the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) linked these changes to the RHOA/ROCK1 signaling axis. ZNF-related proteins Rock1, DMD, and DHX57 in the high-dose group were downregulated (p = 0.006, 0.003, 0.04), and the expression of Myl9, Rhoa, miR431, and miR182 was also downregulated (p = 0.003, 0.032, 0.032, and 0.046). These findings also show correlations between Al, Zn levels in the hippocampus, water maze performance, and expressions of Myl9, Rhoa, miR431, miR182, DMD, ROCK1, and DHX57, with both negative and positive associations. Based on the results, we determined that Zn was involved in Al-induced MCI in Al workers and Al-exposed rat models. Al exposure and interaction with Zn could trigger the downregulation of ZNF of ROCK1, DMD, and DHX57. miR431, miR182 regulate RHOA/ROCK1 was one of the Zn-involved pathways in Al-induced cognitive impairment.
Collapse
Affiliation(s)
- Nan Shang
- Department of Pharmacy, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Xianlin Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Lan Zhang
- School of Public Health, Capital Medical University, Beijing, 100069, China
| | - ShanShan Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Section of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Chanting He
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Xiaojun Zheng
- Department of Pharmacy, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| |
Collapse
|
20
|
Kessas K, Lounis W, Chouari Z, Vejux A, Lizard G, Kharoubi O. Benefits of rutin on mitochondrial function and inflammation in an aluminum-induced neurotoxicity rat model: Potential interest for the prevention of neurodegeneration. Biochimie 2024; 222:1-8. [PMID: 38408719 DOI: 10.1016/j.biochi.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Rutin, a phenolic compound, exhibits a diverse range of biological properties, including antioxidant, anti-inflammatory, and antimicrobial effects. In this study, we aimed to investigate the potential of rutin, a naturally occurring plant bioactive molecule, to mitigate the neurotoxic effects induced by aluminum chloride (AlCl3). Over a period of 6 weeks, rats were intraperitoneally injected with AlCl3 at a weekly dose of 60 mg/kg, while rutin treatment was administered orally via gavage at a daily dose of 30 mg/kg. AlCl3 exposure resulted in a significant increase lipid peroxidation (LPO) by 316.24%, nitrate levels by 504.14%, and tumor necrosis factor-alpha (TNF-α) levels by 93.82% in brain mitochondria. Additionally, AlCl3 exposure led to a reduction in glutathione levels and the activity of antioxidant enzymes, including superoxide dismutase (SOD) by 19.74%, glutathione peroxidase (GPx) by 44.76%, and catalase by 50.50%. There was also a significant decline in the activity of mitochondrial complex enzymes. In contrast, rutin treatment significantly enhanced the activity of antioxidant enzymes while concurrently reducing lipid peroxidation levels in rats. Specifically, rutin administration exerted a modulatory effect on the inflammatory response triggered by aluminum exposure, effectively suppressing the excessive production of nitrate and TNF-α. These findings highlight the potential of rutin as an effective therapeutic strategy in mitigating and combating neuro-inflammation and oxidative stress associated with aluminum-induced toxicity, thereby effectively restoring mitochondrial function.
Collapse
Affiliation(s)
- Khadidja Kessas
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria.
| | - Wafaa Lounis
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
| | - Zehor Chouari
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
| | - Anne Vejux
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, University Bourgogne Franche-Comté, 21000, Dijon, France
| | - Gérard Lizard
- Team 'Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism' EA7270/Inserm, University Bourgogne Franche-Comté, 21000, Dijon, France
| | - Omar Kharoubi
- Laboratory of Biotoxicology Experimentale, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran1 ABB, Oran, 31100, Algeria
| |
Collapse
|
21
|
Thandalam SK, Thankachan T, Makki E, Giri J, Thanikodi S. Insitu synthesis of Al- MgAl 2O 4 composites and parametric optimization of tribological characteristics. Heliyon 2024; 10:e25427. [PMID: 38333868 PMCID: PMC10850580 DOI: 10.1016/j.heliyon.2024.e25427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/13/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024] Open
Abstract
In this research, multiobjective optimization of tribological characteristics of Al-4Mg/in-situ MgAl2O4 composites fabricated via ultrasonic cavitation treatment assisted stir casting technique was carried out. Al-4Mg alloy dispersed with 0.5, 1 and 2 wt% in-situ MgAl2O4 was prepared and the microstructural and mechanical characterisation of the same has been carried out. Reinforcement addition, load and sliding velocity at 3 different levels was considered to attain the responses wear rate and friction coefficient. To identify optimised process condition for the developed composites to attain reduced friction coefficient and wear rate condition, grey analysis is tried out. Experimental results analysed via Grey relation and analysis of variance (ANOVA) proved wt.% of MgAl2O4 particles as significant parameter trailed by load and speed. Based on grey relational grade, minimal wear loss at lowest frictional coefficient can be attained for the composite dispersed with 2 wt% of in-situ MgAl2O4 at 20 N load and 2 m/s sliding velocity. Mechanisms behind the wear loss was analysed from worn out surface micrographs.
Collapse
Affiliation(s)
- Satish Kumar Thandalam
- Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - Titus Thankachan
- Department of Mechanical Engineering, Karpagam College of Engineering, Coimbatore, India
| | - Emad Makki
- Department of Mechanical Engineering, College of Engineering and Architecture, Umm Al-Qura University, Makkah, 24382, Saudi Arabia
| | - Jayant Giri
- Department of Mechanical Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, India
| | - Sathish Thanikodi
- . Saveetha School of Engineering, SIMATS, Chennai, 602 105, Tamil Nadu, India
| |
Collapse
|
22
|
Rodrigues NP, Costalat HCM, Rocha RM, do Socorro Pompeu de Loiola R, de Oliveira Corvelo TC. Evaluation of Environmental Contamination by Heavy Metals and Relationship with Cardiovascular Risk in a Population of Barcarena-PA. Cardiovasc Toxicol 2024; 24:102-110. [PMID: 38308789 DOI: 10.1007/s12012-024-09830-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/14/2024] [Indexed: 02/05/2024]
Abstract
Heavy metals are widely used to sustain the living standards of the modern world. Due to their prevalence, the risk of human exposure is an increasing threat to public health as they can cause negative health effects, such as cardiovascular diseases (CVDs). In this study, the objective was to evaluate clinical-epidemiological and biochemical parameters in relation to the overall risk score (ERG) of developing CVDs in 112 individuals aged 30 to 74 years living in the city of Barcarena-PA. The results of heavy metal contamination and biochemical parameters were applied in the ERG calculation. A significance level of p < 0.05 was adopted in the statistical tests. The values were high for chromium (Cr) (45.8%) and aluminum (Al) (98.6%). As for the ERG for CVDs, they obtained low risk (42%), medium risk (40%), and high risk (18%). In individuals with high ERG, a significant association was detected with increasing age group, in individuals ≥ 60 years (p < 0.0001). The relationship between concomitant Al and Cr intoxication and increased ERG was also significant (p = 0.0016). The probability of high cardiovascular risk among individuals contaminated by Al + Cr is higher than that of individuals contaminated by Al alone (p = 0.0074). Such evidence indicates that continuous environmental monitoring in the municipality of Barcarena is of extreme importance, since the population is in a situation of vulnerability in relation to their health.
Collapse
|
23
|
Gao J, Liu W, Liu J, Hao N, Pei J, Zhang L. The Role of Acetylation and Methylation of Rat Hippocampal Histone H3 in the Mechanism of Aluminum-Induced Neurotoxicity. Neurochem Res 2024; 49:441-452. [PMID: 37897558 DOI: 10.1007/s11064-023-04045-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/30/2023]
Abstract
Aluminum is a known neurotoxin and a major environmental contributor to neurodegenerative diseases such as Alzheimer's disease (AD). We uesd a subchronic aluminum chloride exposure model in offspring rats by continuously treating them with AlCl3 solution from the date of birth until day 90 in this research. Then evaluated the neurobehavioral changes in rats, observed the ultrastructural changes of hippocampal synapses and neurons, and examined the level of hippocampal acetylated histone H3 (H3ac), the activity and protein expression of hippocampal HAT1 and G9a, and the protein expression level of H3K9 dimethylation (H3K9me2). The findings demonstrated that aluminum-treated offspring rats had impaired learning and memory abilities as well as ultrastructural alterations in hippocampal synapses and neurons. The level of histone H3ac was decreased along with decreased protein expression and activity of HAT1, while level of H3K9me2 was increased along with increased protein expression and activity of G9a.
Collapse
Affiliation(s)
- Jie Gao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Wei Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jiaqi Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Niping Hao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Jing Pei
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China
| | - Lifeng Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Shenyang, 110034, Liaoning Province, P. R. China.
| |
Collapse
|
24
|
Tinkov AA, Skalny AV, Domingo JL, Samarghandian S, Kirichuk AA, Aschner M. A review of the epidemiological and laboratory evidence of the role of aluminum exposure in pathogenesis of cardiovascular diseases. Environ Res 2024; 242:117740. [PMID: 38007081 DOI: 10.1016/j.envres.2023.117740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/13/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
The objective of the present study was to review the epidemiological and laboratory evidence on the role of aluminum (Al) exposure in the pathogenesis of cardiovascular diseases. Epidemiological data demonstrated an increased incidence of cardiovascular diseases (CVD), including hypertension and atherosclerosis in occupationally exposed subjects and hemodialysis patients. In addition, Al body burden was found to be elevated in patients with coronary heart disease, hypertension, and dyslipidemia. Laboratory studies demonstrated that Al exposure induced significant ultrastructural damage in the heart, resulting in electrocardiogram alterations in association with cardiomyocyte necrosis and apoptosis, inflammation, oxidative stress, inflammation, and mitochondrial dysfunction. In agreement with the epidemiological findings, laboratory data demonstrated dyslipidemia upon Al exposure, resulting from impaired hepatic lipid catabolism, as well as promotion of low-density lipoprotein oxidation. Al was also shown to inhibit paraoxonase 1 activity and to induce endothelial dysfunction and adhesion molecule expression, further promoting atherogenesis. The role of Al in hypertension was shown to be mediated by up-regulation of NADPH-oxidase, inhibition of nitric oxide bioavailability, and stimulation of renin-angiotensin-aldosterone system. It has been also demonstrated that Al exposure targets cerebral vasculature, which may be considered a link between Al exposure and cerebrovascular diseases. Findings from other tissues lend support that ferroptosis, pyroptosis, endoplasmic reticulum stress, and modulation of gut microbiome and metabolome are involved in the development of CVD upon Al exposure. A better understanding of the role of the cardiovascular system as a target for Al toxicity will be useful for risk assessment and the development of treatment and prevention strategies.
Collapse
Affiliation(s)
- Alexey A Tinkov
- Center of Bioelementology and Human Ecology, IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119435, Russia; Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, Yaroslavl, 150003, Russia; Department of Human Ecology and Bioelementology, and Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russia.
| | - Anatoly V Skalny
- Center of Bioelementology and Human Ecology, IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119435, Russia; Department of Human Ecology and Bioelementology, and Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russia
| | - Jose L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, Universitat Rovira I Virgili, 4320, Reus, Catalonia, Spain
| | - Saeed Samarghandian
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, 9319774446, Iran
| | - Anatoly A Kirichuk
- Department of Human Ecology and Bioelementology, and Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russia
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| |
Collapse
|
25
|
Yu J, Ding Y, Wu D, Liu P. Rutin, Puerarin and Silymarin Regulated Aluminum-Induced Imbalance of Neurotransmitters and Metal Elements in Brain of Rats. Biol Trace Elem Res 2024; 202:548-557. [PMID: 37289414 DOI: 10.1007/s12011-023-03682-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 04/22/2023] [Indexed: 06/09/2023]
Abstract
Non-specifically binding of aluminum to various substances in the organism can result in toxicity. The accumulation of large amounts of aluminum can cause an imbalance in metal homeostasis and interfere with the synthesis and release of neurotransmitters. Flavonoids have strong metal chelating activity, which can reduce damage to the central nervous system. The purpose of this study was to investigate the protective effect of three representative flavonoids, rutin, puerarin and silymarin, on the brain toxicity induced by long-term exposure to aluminum trichloride (AlCl3). Sixty-four Wistar rats were randomly divided into eight groups (n = 8). The rats in six intervention groups were given 100 or 200 mg/kg BW/day of three different flavonoids for four weeks after a 4-week exposure to 281.40 mg/kg BW/day AlCl3·6H2O, while the rats in the AlCl3-toxicity and control groups were given the vehicle after the period of AlCl3 exposure. The results showed that rutin, puerarin, and silymarin could increase the concentrations of magnesium, iron, and zinc in the brains of the rats. Moreover, the intake of these three flavonoids regulated the homeostasis of amino acid neurotransmitters and adjusted the concentrations of monoamine neurotransmitters to normal levels. Taken together, our data suggest that rutin, puerarin, and silymarin could ameliorate AlCl3-induced brain toxicity in the rats by regulating imbalance of metal elements and neurotransmitters in the brains of rats.
Collapse
Affiliation(s)
- Jiasi Yu
- Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Yun Ding
- Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Dan Wu
- Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Ping Liu
- Department of Physical and Chemical Inspection, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.
| |
Collapse
|
26
|
Rouxzeta VAN Der Merwe S, Ahmed Desai D, Campbell Snedden G, Ogochukwu Okanigbe D. Aircraft turbine fan casing and ballistic fan blade impact: Geometry and material. Heliyon 2024; 10:e24157. [PMID: 38293415 PMCID: PMC10826655 DOI: 10.1016/j.heliyon.2024.e24157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/08/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
If the failed fan blade (FB) is not contained in the fan casing (FC) at the time of failure, a catastrophic disaster could follow from the failure of the aircraft's engine turbine. Unfavorable problems including the aircraft malfunctioning, a potential engine shutdown, and even a crash could occur if the detached FB enters the FC. This study employed the Finite Elements Method (FEM) to examine the effects of utilizing Polyether Ether Ketone (PEEK) as an alternative FB material on the FC in order to address this issue. In order to investigate the effects of PEEK and aluminum ballistic FB penetration on FC with thicknesses of 5, 4, 3, and 2 mm at 255 m/s, a FEM ballistic model was developed using the ABAQUS/Explicit modeling system. It was found that during working conditions, none of these FBs could pierce the FC, regardless of thickness. PEEK might be a better alternative, though, as the FC was more obviously deformed by the metal FB. The decision was made to conduct additional analytical validation of the developed FE models. The moment of inertia methodology, a novel approach, was employed. There was a strong correlation between the results of the FE models and the analytical answers. Therefore, it may be said that PEEK is a better material than aluminum for making blade casings.
Collapse
Affiliation(s)
- Shade Rouxzeta VAN Der Merwe
- Building 3, Office 314, Department of Mechanical Engineering and Mechatronics, Tshwane University of Technology, Main Campus, Pretoria West, Private bag X680 Staatsattilerie Road Pretoria 0001, South Africa
| | - Dawood Ahmed Desai
- Building 3, Office 307, Department of Mechanical Engineering and Mechatronics, Tshwane University of Technology, Main Campus, Pretoria West, Private bag X680 Staatsattilerie Road Pretoria 0001, South Africa
| | - Glen Campbell Snedden
- Mechanical Engineering, Aerospace Systems Research Group, University of KwaZulu-Natal, Gate 3 Rick Turner Road, Glenwood, Durban, 4001, South Africa
| | - Daniel Ogochukwu Okanigbe
- Pantheon Virtual Engineering Solutions, (PTY), Nigel,10 Apricot Avenue, Alra Park, 1491, South Africa
| |
Collapse
|
27
|
Li J, Zhang C, Mao B, Liu Q, Wang Y, Yi B, Liu Q. Association between aluminum and iron exposure in maternal blood and umbilical cord blood and congenital heart defects in children. PeerJ 2024; 12:e16755. [PMID: 38274332 PMCID: PMC10809980 DOI: 10.7717/peerj.16755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
Background Congenital heart disease (CHDs) is the major cause of mortality from birth defects, affecting up to 1% of live births worldwide. However, the relationship between aluminum (Al) and iron (Fe) levels and the risk of CHDs has yielded inconsistent results. Methods We conducted a pair-matched case-control study that included 97 CHDs and 194 non-CHDs to investigate the association and interaction between Al/Fe exposure and the risk of CHDs in a birth cohort study in Lanzhou, China. Results Higher concentrations of cord blood Al were associated with a greater risk of total CHDs (aOR = 2.826, 95% CI [1.009-7.266]) and isolated CHDs (aOR = 10.713, 95% CI [1.017-112.851]) compared to the lowest Al level. Both in maternal blood and cord blood, a significant dose-effect was observed between Al level and total CHDs (Ptrend < 0.05), but a similar pattern was not observed for Fe. High Al in addition to high Fe appeared to elicit a stronger association with CHDs than both lowest tertile of Al and Fe level in umbilical cord blood, particularly for multiple CHDs, septal defects and patent ductus arteriosus. Conclusions Our study suggests that exposure to Al during pregnancy (≥2,408 μg/L) is significantly associated with an increased risk of CHDs in offspring, especially septal defects, and that high levels of Al and Fe are strongly correlated with fetal heart development. Further research is needed to understand the underlying mechanisms.
Collapse
Affiliation(s)
- Jing Li
- Department of Scientific Research Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
- Laboratory Medicine Center, Lanzhou University Second Hospital, Lanzhou, Gansu Provincial, China
| | - Chunhua Zhang
- Department of Scientific Research Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| | - Baohong Mao
- Department of Scientific Research Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| | - Qian Liu
- Department of Scientific Research Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| | - Yanxia Wang
- Department of Scientific Research Center, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| | - Bin Yi
- Department of Neonatology, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| | - Qing Liu
- Department of Gynecology, Gansu Provincial Maternity and Child-Care Hospital, Lanzhou, Gansu Provincial, China
| |
Collapse
|
28
|
Krämer F, Paradies J, Fernández I, Breher F. Quo Vadis CO 2 Activation: Catalytic Reduction of CO 2 to Methanol Using Aluminum and Gallium/Carbon-based Ambiphiles. Chemistry 2024; 30:e202303380. [PMID: 37983975 DOI: 10.1002/chem.202303380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/22/2023]
Abstract
We report on so-called "hidden FLPs" (FLP: frustrated Lewis pair) consisting of a phosphorus ylide featuring a group 13 fragment in the ortho position of a phenyl ring scaffold to form five-membered ring structures. Although the formation of the Lewis acid/base adducts was observed in the solid state, most of the title compounds readily react with carbon dioxide to provide stable insertion products. Strikingly, 0.3-3.0 mol% of the reported aluminum and gallium/carbon-based ambiphiles catalyze the reduction of CO2 to methanol with satisfactory high selectivity and yields using pinacol borane as stoichiometric reduction equivalent. Comprehensive computational studies provided valuable mechanistic insights and shed more light on activity differences.
Collapse
Affiliation(s)
- Felix Krämer
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131, Karlsruhe, Germany
| | - Jan Paradies
- Chemistry Department, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Israel Fernández
- Departamento de Química Orgánica I, Facultad de Ciencias Químicas and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Frank Breher
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, 76131, Karlsruhe, Germany
| |
Collapse
|
29
|
Senze M, Kowalska-Góralska M, Czyż K. Effect of Aluminum Concentration in Water on Its Toxicity and Bioaccumulation in Zooplankton (Chaoborus and Chironomus) and Carp (Cyprinus carpio L.) Roe. Biol Trace Elem Res 2024:10.1007/s12011-024-04062-2. [PMID: 38233675 DOI: 10.1007/s12011-024-04062-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/05/2024] [Indexed: 01/19/2024]
Abstract
An attempt to evaluate aluminum toxicity to living organisms was undertaken in the study. A laboratory experiment was conducted to determine aluminum bioaccumulation and toxicity in Chironomus and Chaoborus larvae and in Cyprinus carpio L. roe depending on aluminum concentration in water reflecting natural chemical composition. Water was examined for temperature, pH, electrical conductivity, dissolved oxygen, color, nitrate nitrogen, nitrite nitrogen, sulfates by spectrophotometric method; total hardness and chlorides by titration method; and calcium, magnesium, sodium by flame atomic absorption spectrometry, total aluminum by electrothermal atomic absorption spectrometry. Determination of aluminum levels in water, roe, and zooplankton was carried out after mineralization using electrothermal atomic absorption spectrometry. Aluminum bioaccumulation factor in roe was determined with respect to concentration in water. Moreover, acute toxicity (LC50) was calculated. In the roe experiment, aluminum concentration in water at the end of the experiment was 0.0635-0.1283 mgAl∙dm-3. The lowest values were noted for the control sample and the highest for water with 0.03 mgAl∙dm-3 aluminum content. The final aluminum level in roe was, like in water, the highest in roe treated with 0.03 mgAl∙dm-3 (18.95 mgAl∙kg-1), and the lowest in roe treated with 3.00 mgAl∙dm-3 (6.96 mgAl∙kg-1). Aluminum bioaccumulation in roe was the strongest in the control. Survival rate ranged from 2.00 to 97.00%, which shows higher sensitivity of roe to aluminum concentration. LC50 value for Chaoborus was 0.6464 mgAl⋅dm-3, and for Chironomus 0.2076 mgAl⋅dm-3 indicating that Chironomus is more sensitive to aluminum toxic effects. Concentration of 3.0 mgAl∙dm-3 caused the highest mortality. Aluminum in both species at each concentration reached the highest levels after one day (24 h), 254.58 mg⋅kg-1 for Chaoborus and 3107 mg⋅kg-1 for Chironomus. After another day, aluminum levels decreased. This demonstrated the differential accumulation of aluminum depending on the species, which predisposes Chironomus as a better indicator organism. This type of research is important from the point of view of aquaculture, which is a targeted activity with a high degree of economic importance, but is also important for aquatic organisms living in natural conditions. Fish reproduction takes place in both types of waters, so all these reservoirs regardless of their source of destination should be inspected.
Collapse
Affiliation(s)
- Magdalena Senze
- Institute of Animal Breeding, Department of Limnology and Fishery, Wrocław University of Environmental and Life Sciences, Poland, Ul. Chełmońskiego 38C, 51-630, Wrocław, Poland.
| | - Monika Kowalska-Góralska
- Institute of Animal Breeding, Department of Limnology and Fishery, Wrocław University of Environmental and Life Sciences, Poland, Ul. Chełmońskiego 38C, 51-630, Wrocław, Poland
| | - Katarzyna Czyż
- Institute of Animal Breeding, Department of Sheep and Fur Animals Breeding, Wrocław University of Environmental and Life Sciences, Ul. Kożuchowska 5B, 51-631, Wrocław, Poland
| |
Collapse
|
30
|
Asghar H, Siddiqui A, Batool L, Batool Z, Ahmed T. Post-exposure self-recovery reverses oxidative stress, ameliorates pathology and neurotransmitters imbalance and rescues spatial memory after time-dependent aluminum exposure in rat brain. Biometals 2024:10.1007/s10534-023-00570-1. [PMID: 38233603 DOI: 10.1007/s10534-023-00570-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/06/2023] [Indexed: 01/19/2024]
Abstract
Aluminum is a potent neurotoxin, responsible for memory impairment and cognitive dysfunction. The neurotoxic effect of aluminum on cognitive impairment is well documented, however, exposure to aluminum in a time-dependent manner and post-exposure self-recovery still needs to be elaborated. This research aimed to (1) study the time-dependent effect of aluminum exposure by administering a total dose of 5850 mg/kg of Al over two different time periods: 30 and 45 days (130 and 195 mg/kg of AlCl3 respectively), and (2) study 20 days post-exposure self-recovery effect in both aluminum-exposed groups by giving distilled water. Cognitive abilities were investigated through Morris water maze test and hole board test and compared in both exposure and recovery groups. Oxidative stress markers and neurotransmitter levels were measured for both exposure and recovery groups. To understand the mechanism of aluminum exposure and recovery, immunohistochemical analysis of synaptophysin (Syp) and glial fibrillary acidic protein (GFAP) was performed. Results showed cognitive dysfunction, oxidative stress-induced damage, reduced neurotransmitter levels, decreased immunoreactivity of Syp, and increased GFAP. However, these parameters showed a larger improvement in the recovery group where rats were given aluminum for 30 days period in comparison to recovery group followed by 45 days of aluminum exposure. These results suggest that restoration of cognitive ability is affected by the duration of aluminum exposure. The study findings provide us with insight into the adverse effects of aluminum exposure and can be utilized to guide future preventive and therapeutic strategies against aluminum neurotoxicity.
Collapse
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
| | - Alveena Siddiqui
- 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
| | - Laraib Batool
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Zehra Batool
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 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.
| |
Collapse
|
31
|
Ríos Guayasamín PD, Smith SM, Thomas SC. Biochar effects on NTFP-enriched secondary forest growth and soil properties in Amazonian Ecuador. J Environ Manage 2024; 350:119068. [PMID: 37821334 DOI: 10.1016/j.jenvman.2023.119068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 07/10/2023] [Accepted: 08/30/2023] [Indexed: 10/13/2023]
Abstract
Deforestation in the Amazon has resulted in large areas of depleted soils on abandoned pastures and agricultural sites that present a restoration challenge central to protecting biodiversity and ecosystem function in the region. Biochar - charcoal made from waste materials - can improve soil physical, chemical, and biological properties, but the few tropical field trials to date do not give consistent results regarding tree growth. This study presents three years of soil performance and tree growth of a secondary forest shading nontimber forest product (NTFP) plantations of Ocotea quixos (Lauraceae), Myroxylon balsamum (Fabaceae), and their mixture. Open kiln and traditional mound biochars were added at 10 t ha-1 at two sites with contrasting soil types. Biochar additions resulted in pronounced effects on soil properties that varied over time and with depth in the soil profile. Biochar additions generally increased soil organic matter, electrical conductivity, and plant nutrients (in particular K, Ca, and N), but there were interactive effects of NTFP treatments, and stronger responses on the poorer soil type. Biochar amendments resulted in increased tree growth, with a 29 ± 12% increase in aboveground biomass (AGB) on plots amended with kiln biochar and a 23 ± 9% increase in plots with mound biochar compared to controls. Tree species also varied in growth responses to biochar additions, with the largest increases observed in Jaccaranda copaia and Piptocoma discolor. Significant interactions between biochar and NTFP treatments were also seen for tree growth responses, such as Cecropia spp., which only showed increased biomass on mound biochar plots planted with Ocotea quixos. Overall, our results demonstrate a stronger effect of biochar in less favorable soil conditions, and an overriding effect of the legume NTFP in richer soils, and suggest that additions of biochar and legumes are important options to increase productivity and ecological resilience in tropical forest restoration.
Collapse
Affiliation(s)
- Pedro Damián Ríos Guayasamín
- Institute of Forestry and Conservation, John H. Daniels, Faculty of Architecture, Landscape and Design, University of Toronto, 33 Willcocks St., Toronto, ON, M5S3B3, Canada; Facultad de Ciencias de la Vida, Universidad Estatal Amazónica - UEA, Campus Principal Km 2.1/2 vía a Napo (Paso Lateral) Puyo, Pastaza, Ecuador; Laboratorio de Ecología Tropical Natural y Aplicada - LETNA, CEIPA, UEA, Km 44, Santa Clara, Pastaza - Arosemena Tola, Napo, Ecuador.
| | - Sandy M Smith
- Institute of Forestry and Conservation, John H. Daniels, Faculty of Architecture, Landscape and Design, University of Toronto, 33 Willcocks St., Toronto, ON, M5S3B3, Canada
| | - Sean C Thomas
- Institute of Forestry and Conservation, John H. Daniels, Faculty of Architecture, Landscape and Design, University of Toronto, 33 Willcocks St., Toronto, ON, M5S3B3, Canada
| |
Collapse
|
32
|
Yang L, Chen L, Li W, Zhang Y, Yang G, Huang B, Cen Y, Wang H, Yang X, Lin F, Pang Y, Qi G. METTL3-mediated m6A RNA methylation was involved in aluminum-induced neurotoxicity. Ecotoxicol Environ Saf 2024; 270:115878. [PMID: 38150748 DOI: 10.1016/j.ecoenv.2023.115878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
Aluminum (Al) exposure has been linked to the development of a variety of neurodegenerative diseases. However, whether m6A RNA methylation participated in Al-induced neurotoxicity remain to be defined. In this study, mice were administrated with aluminum-lactate at dose of 220 mg/kg. bw by gavage for 3 months. Meanwhile, the primary hippocampal neurons were isolated and treated with 0, 50, 100, 150 μM aluminum-lactate, respectively for 7 days. Al exposure caused neuronal shrinkage, decreased Nissl bodies, and increased apoptosis. In accordance, in vitro studies also showed that Al exposure led to neuronal apoptosis in a dose-dependent manner, together with the decline in m6A RNA methylation levels. Moreover, the mRNA expression of Mettl3, Mettl14, Fto, and Ythdf2 were decreased upon Al exposure. Notably, the protein expression of METTL3 was dramatically down-regulated by 42% and 35% in Al-treated mice and neurons, suggesting METTL3 might exert a crucial role in Al-induced neurotoxicity. We next established a mouse model with hippocampus-specific overexpressing of Mettl3 gene to confirm the regulatory role of RNA methylation and found that METTL3 overexpression relieved the neurological injury induced by Al. The integrated MeRIP-seq and RNA-seq analysis elucidated that 631 genes were differentially expressed at both m6A RNA methylation and mRNA expression. Notably, EGFR tyrosine kinase inhibitor resistance, Rap1 signaling pathway, protein digestion and absorption might be involved in Al-induced neurotoxicity. Moreover, VEGFA, Thbs1, and PDGFB might be the central molecules. Collectively, our findings provide the novel sight into the role of m6A RNA methylation in neurodegenerative disease induced by Al.
Collapse
Affiliation(s)
- Lingling Yang
- College of Public Health and Management, Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Liping Chen
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wenxue Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Yan Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Guangyu Yang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Bing Huang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Yufang Cen
- College of Public Health and Management, Youjiang Medical University for Nationalities, Baise, Guangxi, China
| | - Huiqi Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Toxicology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Xueqin Yang
- Institute of Pathology and Toxicology, Shenzhen Prevention and treatment center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Fangqin Lin
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yaqin Pang
- College of Public Health and Management, Youjiang Medical University for Nationalities, Baise, Guangxi, China; Key Laboratory of Research on Environment and Population Health in aluminium mining areas (Youjiang Medical University for Nationalities), Education Department of Guangxi Zhuang Autonomous Region, Baise, China
| | - Guangzi Qi
- College of Public Health and Management, Youjiang Medical University for Nationalities, Baise, Guangxi, China; Key Laboratory of Research on Environment and Population Health in aluminium mining areas (Youjiang Medical University for Nationalities), Education Department of Guangxi Zhuang Autonomous Region, Baise, China.
| |
Collapse
|
33
|
Wang Y, Yu Q, Liu S, Liu C, Ju Y, Song Q, Cheng D. Aluminum-maltol induced oxidative stress and reduced AMPK activity via BCK-related energy supply failure in C6 cell. Ecotoxicol Environ Saf 2024; 270:115831. [PMID: 38101974 DOI: 10.1016/j.ecoenv.2023.115831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Aluminum (Al) exposure significantly interferes with the energy supply in astrocytes, which may be a potential mechanism of Al-induced neurotoxicity. This study was designed to explore the mechanisms of Al-induced energy supply impairment in rat C6 astroglioma cell line. Aluminum-maltolate (Al(mal)3) (0.1 mM, 24 h) exposure significantly decreased brain-type creatine kinase (BCK) co-localization with the endoplasmic reticulum (ER) and resulted in mitochondrial dysfunctions, accompanied by a decrease in AMPK phosphorylation. The results of molecular docking showed that Al(mal)3 increased BCK's hydrophobicity and hindered the localization movement of BCK between subcells·H2O2 co-administration was found to exacerbate mitochondrial dysfunction, Ca2+ dyshomeostasis, and apoptosis. After treated with Al(mal)3, additional oxidative stress contributed to BCK activity inhibition but did not promote a further decrease in AMPK phosphorylation. The activation of p-AMPK by its agonist can partially restore mitochondrial function, BCK activity, and ER-localized-BCK levels in Al(mal)3-treated astrocytes. In summary, Al exposure resulted in a sustained depletion of the mitochondrial and antioxidant systems, which was associated with reduced p-AMPK activity and decreased ER-localized-BCK levels in astrocytes. This study provides a theoretical basis for exploring the mechanisms of neurotoxicity induced by Al exposure.
Collapse
Affiliation(s)
- Yingjie Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Qianqian Yu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Sijia Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chunxu Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yaojun Ju
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Qi Song
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Dai Cheng
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China.
| |
Collapse
|
34
|
Zhang J, Li X, Zhang Z, Zhang J, Ma L, Wang S, Guo X, Li H, Pan B, Niu Q. Role of the RIP3-PGAM5-Drp1 pathway in aluminum-induced PC12 cells necroptosis. Ecotoxicol Environ Saf 2024; 270:115860. [PMID: 38142589 DOI: 10.1016/j.ecoenv.2023.115860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/10/2023] [Accepted: 12/17/2023] [Indexed: 12/26/2023]
Abstract
Epidemiological studies from diverse global regions suggest a correlation between the accumulation of aluminum in the brain and the onset of various neurodegenerative diseases, including Alzheimer's disease, of which, neuronal cells death happen. Our previous research has found the potential of aluminum to induce neuronal cell death. A comprehensive exploration of the regulatory pathways influenced by aluminum in neuronal cell death could contribute to the development of strategies aimed at preventing the detrimental impact of aluminum on neuronal cells. This study is dedicated to exploring the impact of aluminum on mitochondrial homeostasis through the RIP3-PGAM5-Drp1 pathway, with a specific focus on its potential role in necroptosis. We observed that the inhibition of RIP3 function and the reduction in PGAM5 protein expression both mitigate aluminum-induced necroptosis in PC12 cells and enhance mitochondrial function. However, the inhibition of PGAM5 protein expression does not exert an impact on the expression of RIP3 and MLKL proteins. In summary, our study posits that aluminum can induce necroptosis in PC12 cells through the RIP3-PGAM5-Drp1 pathway.
Collapse
Affiliation(s)
- Jingsi Zhang
- Section of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xiaoyan Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Zhuoran Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Jintao Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Limin Ma
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Shanshan Wang
- Section of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xin Guo
- Section of Occupational Medicine, Department of Special Medicine, Shanxi Medical University, Taiyuan, Shanxi 030001, China; Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan, Shanxi 030001, China
| | - Huan Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China; Department of Occupational Health, School of Public Health, Jining Medical University, Jining, Shandong 272000, China
| | - Baolong Pan
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China; Sixth Hospital of Shanxi Medical University (General Hospital of Tisco), Taiyuan, Shanxi 030001, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi 030001, China.
| |
Collapse
|
35
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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
| |
Collapse
|
36
|
Roghani H, Borhani E, Ahmadi E, Jafarian HR. Study of changes in the aging process, microstructure, and mechanical properties of AA2024-AA1050 nanocomposites created by the accumulative roll bonding process, with the addition of 0.005 vol.% of alumina nanoparticles. Discov Nano 2024; 19:1. [PMID: 38165450 PMCID: PMC10761635 DOI: 10.1186/s11671-023-03917-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/26/2023] [Indexed: 01/03/2024]
Abstract
We created AA2024-AA1050 and AA2024-AA1050/0.005 vol.% Al2O3 nanocomposites by six accumulative roll bonding (ARB) process cycles. We used AA2024 and AA1050 sheets with a thickness of 0.7 mm and plate-shaped alumina nanoparticles to create a composite. The two AA1050 and one AA2024 sheets (among the two AA1050 sheets) were ARB-ed up to six cycles with and without adding alumina nanoparticles. Also, a sample of the AA1050 without composite making was ARB-ed up to six cycles. We aged some composites after the ARB process in the furnace at 110, 150, and 190 °C. This project performed SEM, TEM, and EDS-MAP analyses, tensile strength, microhardness, and Pin-on-Disc tests to study the ARB-ed sheets. The results of the tensile tests showed that the tensile strength of AA2024-AA1050 created by the six cycles ARB process was two times more than primary AA1050. Also, the wear resistance of this composite was 74% more than six cycles ARB-ed the AA1050. Using 0.005 vol.% alumina nanoparticles in AA2024-AA1050 composite improved its wear resistance by 30%. In the following, the aging process caused an improvement in tensile strength and total elongation of AA2024-AA1050/Al2O3 nanocomposites.
Collapse
Affiliation(s)
- Hamed Roghani
- Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
| | - Ehsan Borhani
- Nanomaterials Department, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran.
| | - Ehsan Ahmadi
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Hamid Reza Jafarian
- School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran
| |
Collapse
|
37
|
Sun B, Li M, Yao Z, Yu G, Ma Y. Advances in Vaccine Adjuvants: Nanomaterials and Small Molecules. Handb Exp Pharmacol 2024; 284:113-132. [PMID: 37059911 DOI: 10.1007/164_2023_652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Adjuvants have been extensively and essentially formulated in subunits and certain inactivated vaccines for enhancing and prolonging protective immunity against infections and diseases. According to the types of infectious diseases and the required immunity, adjuvants with various acting mechanisms have been designed and applied in human vaccines. In this chapter, we introduce the advances in vaccine adjuvants based on nanomaterials and small molecules. By reviewing the immune mechanisms induced by adjuvants with different characteristics, we aim to establish structure-activity relationships between the physicochemical properties of adjuvants and their immunostimulating capability for the development of adjuvants for more effective preventative and therapeutic vaccines.
Collapse
Affiliation(s)
- Bingbing Sun
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, China.
| | - Min Li
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, China
| | - Zhiying Yao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, China
| | - Ge Yu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, China
| | - Yubin Ma
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering and Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, China
| |
Collapse
|
38
|
Wang T, Ji H, Koppala S, Zhang Y, Song D, Yan Y, Phan D, Le T, Zhang L. Efficient and eco-friendly cadmium ion recycling: Ultrasonic enhancement of aluminum powder replacement for low-temperature industrial applications. Ultrason Sonochem 2024; 102:106764. [PMID: 38219549 PMCID: PMC10825664 DOI: 10.1016/j.ultsonch.2024.106764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/24/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Replacing cadmium ions in cadmium-containing solutions with aluminum powder is beneficial for cadmium resource recycling and environmental protection. However, the conventional aluminum powder replacement method requires harsh temperatures and prolonged conditions. In this study, the effect and mechanism of ultrasound on the replacement of cadmium with aluminum powder were investigated at low temperatures. Ultrasound has been proven to promote the etching of alumina films through the use of TEM and XPS, providing mechanistic support for the superiority of the new process. A degree of Cd replacement as high as 95.08 % is achieved at a low temperature (60 ℃) and in a short time (20 min) when using ultrasonicated aluminum powder replacement, which is 42.17 % higher than that of conventional aluminum powder. Compared with conventional aluminum powder replacement conditions with the same effect, the introduction of ultrasound can reduce the temperature by 30℃ and shorten the replacement time by 2/3, which has significant advantages in reaction efficiency and safety. The strengthening mechanism of ultrasound on the replacement effect of aluminum powder at low temperatures is revealed through detailed discussions on the corrosion of alumina films, agglomeration of aluminum powder, and adhesion of replacement products to the surface of aluminum powder, dissolved oxygen in the solution, and redissolution of cadmium. Therefore, a new approach for replacing aluminum powder in solutions with high Cd2+ concentrations at low temperatures is proposed in this work, which is expected to solve the existing harsh and dangerous problems of industrial aluminum powder replacement.
Collapse
Affiliation(s)
- Tian Wang
- State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
| | - Hongtu Ji
- Henan Jinli Gold and Lead Group Co., Ltd., Jiyuan 454650, Henan, China
| | - Sivasankar Koppala
- Department of Biomaterials, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Tamil Nadu, India
| | - Yimin Zhang
- Henan Jinli Gold and Lead Group Co., Ltd., Jiyuan 454650, Henan, China
| | - Deyang Song
- Henan Jinli Gold and Lead Group Co., Ltd., Jiyuan 454650, Henan, China
| | - Yongzhou Yan
- Henan Jinli Gold and Lead Group Co., Ltd., Jiyuan 454650, Henan, China
| | - Duclenh Phan
- Science and Technology Center, MienTrung Industry and Trade College, Phu Yen 56000, Viet Nam
| | - Thiquynhxuan Le
- State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China.
| | - Libo Zhang
- State Key Laboratory of Complex Non-ferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, Yunnan, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China.
| |
Collapse
|
39
|
Shawahna R, Jaber M, Maqboul I, Hijaz H, Alawneh A, Imwas H. Aluminum Concentrations in Breast Milk Samples Obtained from Breastfeeding Women from a Resource-Limited Country: A Study of the Predicting Factors. Biol Trace Elem Res 2024; 202:1-8. [PMID: 37268844 DOI: 10.1007/s12011-023-03714-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/21/2023] [Indexed: 06/04/2023]
Abstract
This study assessed aluminum concentrations in breast milk samples obtained from breastfeeding women in resource-limited countries, estimated daily intake of aluminum by breastfed infants, and identified predictors of higher breast milk aluminum concentrations. A descriptive analytical approach was used in this multicenter study. Breastfeeding women were recruited from different maternity health clinics in Palestine. Aluminum concentrations in 246 breast milk samples were determined using an inductively coupled plasma-mass spectrometric method. The mean breast milk aluminum concentration was 2.1 ± 1.5 mg/L. The mean estimated daily intake of aluminum by infants was 0.37 ± 0.26 mg/kg body weight/day. Multiple linear regression showed that breast milk aluminum concentrations were predicted by living in urban areas, closer to industrial areas, waste disposals, frequent use of deodorants, and less frequent use of vitamins. Breast milk aluminum levels among Palestinian breastfeeding women were comparable to those previously determined in occupationally unexposed women.
Collapse
Affiliation(s)
- Ramzi Shawahna
- Department of Physiology, Pharmacology and Toxicology, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
- Clinical Research Center, An-Najah National University Hospital, Nablus, Palestine.
| | - Mohammad Jaber
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- An-Najah National University Hospital, Nablus, Palestine
| | - Iyad Maqboul
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
- An-Najah National University Hospital, Nablus, Palestine.
| | - Hatim Hijaz
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
- An-Najah National University Hospital, Nablus, Palestine
| | - Ala'a Alawneh
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Hanen Imwas
- Department of Medicine, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| |
Collapse
|
40
|
Qin L, Liu Q, Zhang T, Tang X, Mo X, Liang Y, Wang X, Cao J, Huang C, Lu Y, Zhang Z, Qin J, Cai J. Association Between Combined Polymetallic Exposure and Osteoporosis. Biol Trace Elem Res 2023:10.1007/s12011-023-04002-6. [PMID: 38109003 DOI: 10.1007/s12011-023-04002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
Combined polymetallic exposure may be an influential factor in osteoporosis. This study aimed to explore the association between polymetallic combined exposure and osteoporosis. A total of 2115 participants were included. Plasma concentrations of 22 metals were determined by inductively coupled plasma mass spectrometry. Osteoporosis was defined as a T ≤ - 2.5. The least absolute shrinkage and selection operator (LASSO) regression, binary logistics regression, and Bayesian kernel machine regression (BKMR) model were used to explore the association between plasma metals and osteoporosis. LASSO regression showed that 10 metals were associated with osteoporosis in the total population (magnesium, calcium, manganese, nickel, cobalt, arsenic, selenium, rubidium, cadmium, aluminum) and women (magnesium, calcium, molybdenum, nickel, cobalt, arsenic, selenium, rubidium, cadmium, aluminum), and four metals associated with men (magnesium, cobalt, aluminum, iron). Logistics regression showed that in total population, magnesium (ORQ3 = 0.653, 95% CI = 0.446-0.954) was negatively correlated with osteoporosis, while aluminum (ORQ2 = 1.569, 95% CI = 1.095-2.248, ORQ4 = 1.616, 95% CI = 1.109-2.354) and cadmium (ORQ4 = 1.989, 95% CI = 1.379-2.870) were positively correlated; in women, magnesium (ORQ3 = 0.579, 95% CI = 0.379-0.883) was negatively correlated with osteoporosis, while aluminum (ORQ2 = 1.563, 95% CI = 1.051-2.326, ORQ4 = 1.543, 95% CI = 1.024-2.326) and cadmium (ORQ3 = 1.482, 95% CI = 1.003-2.191, ORQ4 = 1.740, 95% CI = 1.167-2.596) were positively correlated. BKMR model showed that combined polymetallic exposure had an overall positive effect on osteoporosis, magnesium was negatively associated with osteoporosis, and cadmium, selenium, and aluminum were positively associated with osteoporosis. Metal mixtures in plasma were associated with osteoporosis risk. Magnesium may reduce the risk of osteoporosis, while cadmium, selenium, and aluminum may increase the risk of osteoporosis. Future studies needed to explore correlations and mechanisms.
Collapse
Affiliation(s)
- Lidong Qin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Qiumei Liu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Tiantian Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xu Tang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xiaoting Mo
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Yujian Liang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Xuexiu Wang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Jiejing Cao
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Chuwu Huang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Yufu Lu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
| | - Zhiyong Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
- Guangxi Health Commission Key Laboratory of Entire Lifecycle Health and Care, Guilin Medical University, Guilin, China
| | - Jian Qin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China.
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, China.
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China.
| | - Jiansheng Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Shuangyong Road 22, Nanning, 530021, Guangxi, China.
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Huan Cheng North 2Nd Road 109, Guilin, 541004, Guangxi, China.
| |
Collapse
|
41
|
Liu P, Yang X, Li H, Zhang S, Hu Y, Zhou G, Hadjichristidis N. Synthesis of α,ω-End Functionalized Polydienes: Allylic-Bearing Heteroleptic Aluminums for Selective Alkylation and Transalkylation in Coordinative Chain Transfer Polymerization. Angew Chem Int Ed Engl 2023:e202317494. [PMID: 38086775 DOI: 10.1002/anie.202317494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Indexed: 12/29/2023]
Abstract
There are still challenges in the preparation of difunctional stereoregular polydienes, especially for the construction of initiating chain-end functionalization. Coordinative chain transfer polymerization (CCTP) provides a way to achieve the goal but usually requires sophisticated functionalized catalysts as well as expensive chain transfer agents (CTAs). In this work, heteroleptic aluminum with oligo(dienyl) substituents (oligo-Al agents) were readily prepared by living anionic polymerization (LAP) technique. The oligo-Al agents used in Nd-mediated CCTPs of dienes exhibit highly selective alkylation and transalkylation features. Kinetics and transfer efficiency studies using 1 H NMR, 13 C NMR, 1 H-13 C HSQC, and Dosy NMR analyses revealed that the resulting polydienes possess substituents at the initiating chain-end that have transferred from the oligo-Al agents. The functionalization efficiency of the initiating chain-end is up to 99 %, and the molar mass regulation efficiency of heteroleptic aluminum is higher than that of the traditional CTA Ali Bu2 H (0.608 vs. 0.410). Based on the experimental results and density functional theory (DFT) calculations, we propose a mechanism in which allylic-Al acts as an efficient alkylating moiety in catalyst preformation and also as an effective transfer agent in polymerization. Taking advantage of these features, di-functionalized polyisoprene, polybutadiene, and poly(isoprene-co-butadiene) can be facilely synthesized.
Collapse
Affiliation(s)
- Pibo Liu
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Xiao Yang
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - He Li
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Songbo Zhang
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Yanming Hu
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Guangyuan Zhou
- Division of Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Chemistry Program, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
| |
Collapse
|
42
|
Ma J, Zheng M, Zhang X, Lu J, Gu L. Ethanol extract of Andrographis paniculata alleviates aluminum-induced neurotoxicity and cognitive impairment through regulating the p62-keap1-Nrf2 pathway. BMC Complement Med Ther 2023; 23:441. [PMID: 38057817 PMCID: PMC10698961 DOI: 10.1186/s12906-023-04290-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is the most prevalent neurodegenerative and remains incurable. Aluminum is a potent neurotoxin associated with AD. The main pathological features of AD are extracellular amyloid-β protein deposition and intracellular hyperphosphorylated Tau protein. A body of evidence suggest that oxidative stress and autophagy are involved in the pathogenesis of AD. Andrographis paniculata (AP) is a native plant with anti-inflammatory, anti-oxidative stress, and regulation of autophagy properties. AP significantly alleviated cognitive impairments, reduced Aβ deposition and has neuroprotective effect. However, its effects on aluminum-induced AD model have not been studied much. In this study, we investigated whether AP protect against aluminum-induced neurotoxicity through regulation of p62-Kelch-like ECH-associated protein 1(Keap1)-Nuclear factor E2 related factor 2 (Nrf2) pathway and activation autophagy in vivo and in vitro. METHODS UPLC-ESI-qTOF-MS/MS was used to identify the chemical constituents of AP ethanol extract. The mice with cognitive deficit were established by injecting aluminum chloride and D-galactose, and treated with either AP extract (200, 400, or 600 mg/kg/d) or andrographolide (2 mg/kg/2d).The spatial memory ability was detected by Morris water maze, HE staining were used to detect in brain tissue,Oxidative stress indexs and SOD activity in both serum and brain tissue were detected by kit.The expression of p62-Nrf2 pathway proteins were measured via western blotting. Furthermore, the neurotoxicity model was induced by aluminum maltolate (700 µM) in PC12 cells. Following AP and andrographolide treatment, the cell viability was detected. The relevant mRNA and protein expressions were detected in cells transfected with the p62 siRNA. RESULTS The main active components of AP included andrographolide, neoandrographolide and deoxyandrographolide as identified. AP and andrographolide significantly improved the spatial memory ability of mice, attenuated pathological changes of hippocampal cells, reduced the level of malondialdehyde, and increased superoxide dismutase activity in serum or brain tissue as compared to model control. In addition, the Nrf2, p62 and LC3B-II proteins expression were increased, and p-Tau and Keap1 proteins were decreased in the hippocampus after AP and andrographolide treatment.Furthermore, AP increased aluminum maltolate-induced cell viability in PC12 cells. Silencing p62 could reverse the upregulation expression of Nrf2 and downregulation of Keap1 and Tau proteins induced by AP in aluminum maltolate-treated cells. CONCLUSIONS AP had neuroprotective effects against aluminum -induced cognitive dysfunction or cytotoxicity, which was involved in the activation of the p62-keap1-Nrf2 pathway and may develop as therapeutic drugs for the treatment of AD. However, this study has certain limitations, further optimize the protocol or model and study the molecular mechanism of AP improving AD.
Collapse
Affiliation(s)
- Jianping Ma
- Department of Pharmacy, Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Miao Zheng
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, School of Pharmacy (Institute of Materia Medica), Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Xinyue Zhang
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, School of Pharmacy (Institute of Materia Medica), Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Jiaqi Lu
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, School of Pharmacy (Institute of Materia Medica), Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China
| | - Lili Gu
- Key Laboratory of Neuropsychiatric Drug Research of Zhejiang Province, School of Pharmacy (Institute of Materia Medica), Hangzhou Medical College, Hangzhou, Zhejiang, 310013, China.
| |
Collapse
|
43
|
Laihemdi F, Barhoumi A, Zarri M, Tahiri M, Chafi M. Inhibition of corrosion of an aluminum alloy by rosemary and eucalyptus extracted oils in 1 M hydrochloric acid medium: an experimental and theoretical study. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-30800-5. [PMID: 38052731 DOI: 10.1007/s11356-023-30800-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023]
Abstract
In this study, we explored aluminum corrosion inhibition field of study in a 1 M HCl solution, harnessing the power of essential oils extracted from rosemary and eucalyptus plants. Our exploration gives a comprehensive analysis of the pivotal factors that shape the corrosion inhibition process. Our scientific journey was marked by a deliberate and systematic approach, encompassing the utilization of gravimetric analysis (weight loss), electrochemical potentiodynamic polarization, and the sophisticated electrochemical impedance spectrometry (EIS) techniques. Our findings unveiled promising and nuanced outcomes, particularly in the area of the electrochemical technique. This method demonstrated remarkable inhibition efficiencies, ranging from 42% to an impressive 92% for rosemary essential oil and from 37 to 84% for eucalyptus essential oil. These results unveiled a dynamic relationship between essential oil concentration and inhibition efficiency, a revelation that further deepens our understanding of the corrosion inhibition process. The inhibition efficiency increased with higher concentrations of essential oil but decreased with elevated temperatures. Furthermore, our analysis traversed into the realms of potentiodynamic and thermodynamic insights. These analytical techniques unearthed the complex mechanisms at play, explaining the pathway followed by the studied inhibitors. They exhibited their prowess by forming protective films on the metal surface, acting as vigilant protectors against the relentless forces of corrosion. Complementing our experimental findings, our study of computational chemistry through density functional theory (DFT) unveiled remarkable insights. It elucidated the spontaneous adsorption process of inhibitor molecules onto the aluminum surface in the presence of H2O solvent. This computational harmony with our experimental results strengthened our confidence in the robustness of our findings. One of the key findings of this study was the superior inhibitory power of camphor in rosemary EO and β-myrcene in eucalyptus essential oil EO, respectively, attributed to the distinctive characteristics of the active sites found in each compound. The inhibitory effectiveness followed the order β-myrcene > camphor > borneol > α-pinene > bornyl acetate > p-cymene > 1,8-cineole. These compounds, notable for their distinct active sites, emerged as exceptional agents in the pursuit of effective corrosion inhibition.
Collapse
Affiliation(s)
- Fathia Laihemdi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco
| | - Ali Barhoumi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco
- Molecular Modelling and Spectroscopy Research Team, Faculty of Science, Chouaïb Doukkali University, P.O. Box 20, 24000, El Jadida, Morocco
| | - Meryem Zarri
- Organic Synthesis, Extraction and Valorisation Laboratory (SOEV), Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Maarif, B.P. 5366, 20100, Casablanca, Morocco
| | - Mohamed Tahiri
- Organic Synthesis, Extraction and Valorisation Laboratory (SOEV), Faculty of Sciences Ain Chock, Hassan II University of Casablanca, Maarif, B.P. 5366, 20100, Casablanca, Morocco
| | - Mohammed Chafi
- LIPE, Higher School of Technology, Hassan II University of Casablanca, P.O. Box 8012, 20000, Oasis, Morocco.
| |
Collapse
|
44
|
Berr M, Hischier R, Wäger P. Assessing Short-Term Supply Disruption Impacts within Life Cycle Sustainability Assessment─A Case Study of Electric Vehicles. Environ Sci Technol 2023; 57:19678-19689. [PMID: 37956219 DOI: 10.1021/acs.est.3c05957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
In this article, the recently published SPOTTER approach, which allows for identifying potential supply disruption impacts along the entire supply chain within life cycle sustainability assessment in the short term (i.e., < 5 years), is applied to a case study addressing the cobalt and aluminum supply chains of electric vehicles (EVs) used in Switzerland. Existing studies within the field assessing supply disruption impacts for EVs and other technologies focus on impacts related to raw material supply and thus neglect impacts along full supply chains. The present study identifies hotspots and overall impacts along the full supply chains by analyzing six supply disruption events (i.e., geopolitical instability, child labor restrictions, trade barriers, price volatility, limited recyclability, and economic resource depletion) for two impact categories (i.e., cost variability and limited availability). Identified hotspots suggest that supply chains are potentially disrupted mainly through events occurring in Asian, African, or other developing countries and affecting the Western economies. The highest risks are indicated in relation to the supply of EVs, EV wiring, traction batteries, cobalt powder, and cobalt ore. Suitable measures to mitigate these supply risks are suggested showing that some of the suggestions could not have been made based on the results of existing studies.
Collapse
Affiliation(s)
- Marcus Berr
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Roland Hischier
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Patrick Wäger
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| |
Collapse
|
45
|
Zhang Y, Xue L, Xu Y, Zeng Z, Wang X, Wang H. A highly sensitively "off-on-off" fluorescence probe for detection of aluminum ion and water as well as application in Chinese Baijiu. Spectrochim Acta A Mol Biomol Spectrosc 2023; 302:123013. [PMID: 37348274 DOI: 10.1016/j.saa.2023.123013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023]
Abstract
Developing highly sensitive fluorescent probe for Al3+ and H2O detection is highly desirable, due to aluminum toxicity poses a significant threat to public health. On the other hand, the determination of water content holds immense significance in a wide range of fields such as food processing, pharmaceutical manufacturing. In this paper, a novel acylhydrazone-based fluorescent probe P was successfully synthesized and characterized for the sequential detection of Al3+ and water in alcohols. The probe P exhibited a remarkable "turn-on" response towards Al3+ by emitting yellow fluorescence at 567 nm, with high selectivity and large Stokes shift (147 nm). Meanwhile, the in situ formed P-Al3+ complex demonstrated significant solvatofluorochromic characteristic, which could be utilized as a second probe for detecting water via fluorescence quenching with low detection limit in alcohols (0.008%, methanol; 0.013%, ethanol; 0.013%, isopropanol; 0.037%, n-butanol; vol.%) and acetonitrile (0.072%, vol.%). Moreover, the P-Al3+ complex was able to detect the alcoholic strength of Chinese Baijiu without the interference of other alcohols, providing an excellent recovery rate (100.0-107.0%). Different Chinese Baijius, with various alcoholic strength, could be distinguished by simple test strips. Furthermore, the P-Al3+ complex could also analyze the water content in organic solvents .
Collapse
Affiliation(s)
- Yang Zhang
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China
| | - Lei Xue
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China
| | - Yang Xu
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China
| | - Zihan Zeng
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China
| | - Xin Wang
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China
| | - Haibin Wang
- College of Chemistry and Chemical Engineering Ningxia Normal University, 756000, Guyuan, Ningxia, PR China.
| |
Collapse
|
46
|
Wang L, Zhang J, Zhao Y, Li J, Lu X, Song J, Zhang L, Niu Q. Nuclear factor kappa B (NF-κB) participates in the aluminum-induced down-regulation of miR29a/b1. J Trace Elem Med Biol 2023; 80:127309. [PMID: 37801786 DOI: 10.1016/j.jtemb.2023.127309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 08/11/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023]
Abstract
BACKGROUND Studies have shown that aluminum (Al) is one of the environmental risk factors leading to Alzheimer's disease (AD), and Al exposure can cause elevated levels of BACE1mRNA, β-secretase (BACE1), and amyloid beta (Aβ) in vivo and in vitro. Previous studies by our research group have shown that this is partly caused by the negative regulation of BACE1 by miRNA29a/b1 (miR29a/b1). Despite the observed the role of nuclear factor kappa B (NF-κB) on many miRNAs, the upstream regulation of NF-κB protein on miR29 remains poorly understood. The purpose of this study was to better define the relationship between NF-κB and miR29a/b1 and the potentially relevant signaling pathways. METHODS On the one hand, we constructed the animal model of Al exposure by the intraperitoneal injection of aluminum-maltolate (Al(mal)3) in rats. Conversely, NF- κB inhibitors were added to adrenal phaeochromocytoma (PC12) cells exposed to Al(mal)3. RESULTS We verified that NF-κB shows an increasing trend with Al accumulation in the brain of rats, which is accompanied by a downward trend of miR29a/b1. Notably, the suppression of NF-κB significantly increased miR29a/b1 and affected the expression of BACE1mRNA and downstream proteins. CONCLUSION Al-induced NF-κB can negatively regulate the expression of miR29a/b1, which then significantly enhances the expression of BACE1 and Aβ plaques.
Collapse
Affiliation(s)
- Linping Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Jingqi Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Yue Zhao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Juan Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Xiaoting Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Jing Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Ling Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China
| | - Qiao Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, China; Key Lab of Environmental Hazard and Health of Shanxi Province, Shanxi Medical University, China; NHC Key Laboratory of Pneumoconiosis (Shanxi), Medical University, Taiyuan, 030001 Shanxi Province, China.
| |
Collapse
|
47
|
Schönenberger KA, Saxer C, Neyer PJ, Huwiler VV, Reber E, Hammerer-Lercher A, Stanga Z, Mühlebach S. Aluminum and other chemical elements in parenteral nutrition components and all-in-one admixtures. Clin Nutr 2023; 42:2475-2483. [PMID: 38411019 DOI: 10.1016/j.clnu.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND & AIMS Parenteral nutrition (PN) can lead to high or even toxic exposure to aluminum (Al). We aimed to quantify concentrations of Al and other chemical elements of all-in-one (AIO) PN admixtures for adults prepared from commercial multichamber bags (Olimel® 5.7%, Omegaflex® special, SmofKabiven®, all with and without electrolytes) and vitamin and trace element additives over a 48-h period. Secondly, we determined the level of Al contamination resulting from admixing and infusion set use. METHODS We used dynamic reaction cell and kinetic energy discrimination inductively coupled plasma mass spectrometry (ICP-MS) to quantify Al, arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), antimony (Sb), selenium (Se), tin (Sn), vanadium (V), and zinc (Zn) in AIO PN admixtures. We extracted samples for analysis via the bag injection ports and infusion sets over a 48-h period after admixing. We compared the measured Al concentrations of AIO PN admixtures with calculated values based on the measured concentrations of individual chamber contents and additives. RESULTS Mean (standard deviation) baseline Al concentrations in AIO PN admixtures ranged from 10.5 (0.5) to 59.3 (11.4) μg/L and decreased slightly over the 48 h (estimate [standard error] -0.09 [0.02] μg/L/hour, p <0.001). Thus, certain products exceeded the widely accepted limit of 25 μg/L. There was no significant difference in Al concentrations between samples extracted via the bag injection ports or infusion sets (p = 0.33), nor between measured and calculated Al concentrations of AIO PN admixtures (p = 0.91). CONCLUSION Because certain commercially available PN admixtures for adults proved to contain excessively high levels of Al in our study, regulations and corresponding quality requirements at the authority level (e.g., Pharmacopoeia and regulatory authorities) are urgently required. Our results showed that the PN handling process (admixing and supplementing additives) or the materials of the infusion set did not lead to additional Al contamination to any extent. Moreover, calculated Al concentrations of AIO PN admixtures derived from individual chamber contents and additives are valid.
Collapse
Affiliation(s)
- Katja A Schönenberger
- Institute of Laboratory Medicine, Cantonal Hospital Aarau, Tellstrasse 25, 5001 Aarau, Switzerland; Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Spitalstrasse 26, 4056 Basel, Switzerland; Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism (UDEM), Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland.
| | - Christoph Saxer
- Institute of Laboratory Medicine, Cantonal Hospital Aarau, Tellstrasse 25, 5001 Aarau, Switzerland
| | - Peter J Neyer
- Institute of Laboratory Medicine, Cantonal Hospital Aarau, Tellstrasse 25, 5001 Aarau, Switzerland
| | - Valentina V Huwiler
- Institute of Laboratory Medicine, Cantonal Hospital Aarau, Tellstrasse 25, 5001 Aarau, Switzerland; Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Spitalstrasse 26, 4056 Basel, Switzerland; Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism (UDEM), Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | - Emilie Reber
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism (UDEM), Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | | | - Zeno Stanga
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism (UDEM), Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 15, 3010 Bern, Switzerland
| | - Stefan Mühlebach
- Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Spitalstrasse 26, 4056 Basel, Switzerland
| |
Collapse
|
48
|
Kirichuk AA, Skalny AV, Chizhov AY, Tskhovrebov AG, Schaumlöffel D, Kritchenkov AS. Characteristic features of toxic metal content in hair samples of foreign students at RUDN University from different geographic regions. J Trace Elem Med Biol 2023; 80:127303. [PMID: 37741050 DOI: 10.1016/j.jtemb.2023.127303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND This study explores the regional variations in toxic metal accumulation among RUDN University students from various global regions. METHODS This comparative analysis examined hair samples from students hailing from different regions, including Russia, Asia, the Middle East, Africa, and Latin America. The concentrations of Aluminium (Al), Arsenic (As), Cadmium (Cd), Mercury (Hg), Lead (Pb), and Tin (Sn) were measured in the hair samples. The data was then evaluated using regression models to assess the link between the region of residence and toxic metal content in the hair. RESULTS The analysis indicated significant regional variations in the levels of toxic metals in the students' hair. The highest content of Al, Cd, and Pb was observed in students from Africa (13.542, 0.028, 0.794 µg/g) and Latin America (9.947, 0.025, 0.435 µg/g). Arsenic levels in students from all regions exceeded that of Russian students by over two-fold. No substantial group differences were found in the Sn content. The regression models suggested that residing in Asia, Africa, and Latin America was a predictor of high Hg levels in hair (0.130, 0.096, 0.227 µg/g). Living in Africa was significantly associated with higher Pb levels (0.794 µg/g), and living in Latin America was close to significantly associated with the Cd level in the hair (0.025 µg/g). CONCLUSION This study confirmed an increased accumulation of toxic metals, especially Hg, Cd, and Pb, in students primarily from Latin America and Africa. The findings highlighted the importance of understanding the regional variations in toxic metal accumulation to address associated health risks and the potential impact on students' well-being and academic performance. These insights may guide the development of targeted interventions to reduce exposure to toxic metals in students from various regions around the world.
Collapse
Affiliation(s)
- Anatoly A Kirichuk
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Anatoly V Skalny
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; Sechenov University, Moscow 119435, Russian Federation
| | - Aleksey Ya Chizhov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Alexander G Tskhovrebov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Dirk Schaumlöffel
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; CNRS, Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM), UMR 5254, 64000 Pau, France
| | - Andreii S Kritchenkov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, Vitebsk 210009, Republic of Belarus.
| |
Collapse
|
49
|
Liu W, Gao J, Hao N, Li J, Pei J, Zou D, Yang S, Yin Y, Yang X, Mu P, Zhang L. Effects of miR-204-5p and Target Gene EphB2 on Cognitive Impairment Induced by Aluminum Exposure in Rats. Biol Trace Elem Res 2023:10.1007/s12011-023-03961-0. [PMID: 37985568 DOI: 10.1007/s12011-023-03961-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/10/2023] [Indexed: 11/22/2023]
Abstract
Aluminum is a common environmental neurotoxin. Aluminum ions can cross the blood-brain barrier and accumulate in different brain regions, damage brain tissue, and cause cognitive impairment, but the molecular mechanism of aluminum neurotoxicity is not precise. This study investigated the effects of miR-204-5p, target gene EphB2, and downstream signaling pathway NMDAR-ERK-CREB-Arc on cognitive dysfunction induced by aluminum exposure. The results showed that the learning and memory of the rats were impaired in behavior. The accumulation of aluminum in the hippocampus resulted in the damage of nerve cell morphology in the CA1 region of the hippocampus. The expression level of miR-204-5p was increased, and the mRNA and protein expressions of EphB2, NMDAR2B, ERK1/2, CREB, and Arc were decreased. The results indicated that the mechanism of impaired learning and memory induced by aluminum exposure might promote the expression of miR-204-5P and further inhibit the expression of the target gene EphB2 and its downstream signaling pathway NMDAR-ERK-CREB-Arc.
Collapse
Affiliation(s)
- Wei Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Jie Gao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Niping Hao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Jing Li
- Department of Shenyang Maternity and Child Health Hospital, Shenyang, Liaoning Province, 110034, People's Republic of China
| | - Jing Pei
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Danfeng Zou
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Shuo Yang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Yuhua Yin
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Xiaoming Yang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China
| | - Ping Mu
- Department of Physiology, School of Basic Medicine, Shenyang Medical College, Shenyang, Liaoning Province, 110034, People's Republic of China.
| | - Lifeng Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Shenyang Medical College, Liaoning Province 110034, Shenyang, People's Republic of China.
| |
Collapse
|
50
|
Kunz SN, Bohrer D, do Nascimento PC, Cibin FWS, de Carvalho LM. Interference of Parenteral Nutrition Components in Silicon-Mediated Protection Against Aluminum Bioaccumulation. Biol Trace Elem Res 2023:10.1007/s12011-023-03929-0. [PMID: 37924413 DOI: 10.1007/s12011-023-03929-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023]
Abstract
Aluminum and silicon are contaminants found in formulations used to prepare parenteral nutrition. Both elements are leached from glass containers, mainly during the heating cycle for sterilization. Insoluble and biologically inactive species of hydroxyaluminosilicates have been shown to form in solutions containing Al and Si. Therefore, this interaction may play an important role in protecting the body against Al toxicity. In this study, the bioavailability of Al in the presence of Si, calcium gluconate (Gluc.), and potassium phosphate (Phosf.) was investigated in rats. The rats were divided into 10 groups of 5 animals each: control, Al, Si, Al + Si, Gluc, Gluc + Al, Gluc + Al + Si, Phosf, Phosf + Al, and Phosf + Al + Si. The doses, consisting of 0.5 mg/kg/day Al and 2 mg/kg/day Si in the presence or absence of Gluc. or Phosf., were intraperitoneally administered for 3 months. Tissues were analyzed for Al and Si content. Al accumulated in the liver, kidneys, and bones, and the simultaneous administration of Si decreased Al accumulation in these tissues. The presence of Si reduced the amount of Al present by 72% in the liver, by 45% in the kidneys, and by 16% in bone. This effect was lees pronounced in the presence of parenteral nutrition compounds though. Si tissue accumulation was also observed, mainly when administered together with phosphate. These results suggest that Si may act as a protector against Al toxicity, by either reducing Al absorption or increasing its excretion, probably through hydroxyaluminosilicates formation. The presence of calcium gluconate and potassium phosphate decreases or inhibits this effect.
Collapse
Affiliation(s)
- Simone Noremberg Kunz
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil.
| | - Denise Bohrer
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Santa Maria, Brazil
| | - Paulo Cícero do Nascimento
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil
| | | | - Leandro Machado de Carvalho
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria, RS, 1000, 97105, 900, Brazil
| |
Collapse
|