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Alsharif KF, Albrakati A, Al Omairi NE, Almalki AS, Alsanie W, Abd Elmageed ZY, Alharthi F, Althagafi HA, Alghamdi AAA, Hassan IE, Habotta OA, Lokman MS, Kassab RB, El-Hennamy RE. Neuroprotective efficacy of the bacterial metabolite, prodigiosin, against aluminium chloride-induced neurochemical alternations associated with Alzheimer's disease murine model: Involvement of Nrf2/HO-1/NF-κB signaling. ENVIRONMENTAL TOXICOLOGY 2023; 38:266-277. [PMID: 36447373 DOI: 10.1002/tox.23718] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 11/12/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Prodigiosin (PDG) is a bacterial metabolite with numerous biological and pharmaceutical properties. Exposure to aluminium is considered a root etiological factor in the pathological progress of Alzheimer's disease (AD). Here, in this investigation, we explored the neuroprotective potential of PDG against aluminium chloride (AlCl3 )-mediated AD-like neurological alterations in rats. For this purpose, rats were gavaged either AlCl3 (100 mg/kg), PDG (300 mg/kg), or both for 42 days. As a result of the analyzes performed on the hippocampal tissue, it was observed that AlCl3 induced biochemical, molecular, and histopathological changes like those related to AD. PDG pre-treatment significantly decreased acetylcholinesterase activity and restored the levels of brain-derived neurotrophic factor, monoamines (dopamine, norepinephrine, and serotonin), and transmembrane protein (Na+ /K+ -ATPase). Furthermore, PDG boosted the hippocampal antioxidant capacity, as shown by the increased superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, and glutathione contents. These findings were accompanied by decreases in malondialdehyde and nitric oxide levels. The antioxidant effect may promote the upregulation of the expression of antioxidant genes (Nrf2 and HO-1). Moreover, PDG exerted notable anti-inflammatory effects via the lessening of interleukin-1 beta, tumor necrosis factor-alpha, cyclooxygenase-2, nuclear factor kappa B, and decreases in the gene expression of inducible nitric oxide synthase. In addition, noteworthy decreases in pro-apoptotic (Bax and caspase-3) levels and increases in anti-apoptotic (Bcl-2) biomarkers suggested an anti-apoptotic effect of PDG. In support, the hippocampal histological examination validated the aforementioned changes. To summarize, the promising neuromodulatory, antioxidative, anti-inflammatory, and anti-apoptotic activities of PDG establish it as a potent therapeutic option for AD.
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Affiliation(s)
- Khalaf F Alsharif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Ashraf Albrakati
- Department of Human Anatomy, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Naif E Al Omairi
- Department of Internal Medicine, College of Medicine, Taif University, Taif, Saudi Arabia
| | | | - Walaa Alsanie
- Department of Internal Medicine, College of Medicine, Taif University, Taif, Saudi Arabia
| | - Zakaria Y Abd Elmageed
- Department of Pharmacology, Edward Via College of Osteopathic Medicine, University of Louisiana at Monroe, Monroe, Louisiana, USA
| | - Fahad Alharthi
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Hussam A Althagafi
- Department of Biology, Faculty of Science and Arts, Al-Baha University, Almakhwah, Al-Baha, Saudi Arabia
| | - Abdullah A A Alghamdi
- Department of Biology, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
| | - Ibrahim Eid Hassan
- Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt
- Department of Physics, College of Science and Arts, Qassim University, Alnbhaniah, Saudi Arabia
| | - Ola A Habotta
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Maha S Lokman
- Biology Department, College of Science and Humanities, Prince Sattam bin Abdul Aziz University, Alkharj, Saudi Arabia
| | - Rami B Kassab
- Department of Biology, Faculty of Science and Arts, Al-Baha University, Almakhwah, Al-Baha, Saudi Arabia
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Rehab E El-Hennamy
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
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2
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Yang P, Zhang T, Zhu R, Shen Y, Pan Y, Zhang Y. Protective effect of zinc supplementation on tricalcium phosphate particles-induced inflammatory osteolysis in mice. Microsc Res Tech 2022; 85:3608-3617. [PMID: 35876446 DOI: 10.1002/jemt.24213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 11/08/2022]
Abstract
Zinc (Zn), an essential trace element, can stimulate bone formation and inhibit osteoclastic bone resorption, which controls the growth and maintenance of bone. However, the effect of Zn supplementation on tricalcium phosphate (TCP) wear particles-induced osteolysis remains unknown. Here, we doped Zn into TCP particles (ZnTCP), and explore the protective effects of Zn on TCP particles-induced osteolysis in vivo. TCP particles and ZnTCP particles were embedded under the periosteum around the middle suture of the mouse calvaria. After 2 weeks, blood, the periosteal tissue, and the calvaria were collected to determine serum levels of Zn and osteocalcin, pro-inflammatory cytokines, bone biochemical markers, osteoclastogenesis and bone resorption area, and to explain its mechanism. Data revealed that Zn significantly prevented TCP particles-induced osteoclastogenesis and bone loss, and increased bone turnover. The Zn supplement remarkably suppressed the release of pro-inflammatory cytokines including tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6. Immunoblotting demonstrated that Zn alleviated expression levels of ER stress-related proteins such as glucose-regulated protein 78 (GRP78), PKR-like ER kinase (PERK), phospho-PERK (p-PERK), eukaryotic initiation factor 2α (eIF2α), phospho-eIF2α (p-eIF2α), activating transcription factor 4 (ATF4), inositol-requiring enzyme 1α (IRE1-α) and transcription factor X-box binding protein spliced (XBP1s), leading to decreasing the ratios of p-PERK/PERK and p-eIF2α/eIF2α. Taken together, Zn supplementation strongly prevents TCP particles-induced periprosthetic osteolysis via inhibition of the ER stress pathway, and it may be a novel therapeutic approach for the treatment of aseptic prosthesis loosening.
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Affiliation(s)
- Pei Yang
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Tao Zhang
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Ruirong Zhu
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Yuchen Shen
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Yuefang Pan
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Yun Zhang
- College of Medicine, Shaoxing University, Shaoxing, People's Republic of China
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3
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Abu-Elfotuh K, Hussein FH, Abbas AN, Al-Rekabi MD, Barghash SS, Zaghlool SS, El-Emam SZ. Melatonin and zinc supplements with physical and mental activities subside neurodegeneration and hepatorenal injury induced by aluminum chloride in rats: Inclusion of GSK-3β-Wnt/β-catenin signaling pathway. Neurotoxicology 2022; 91:69-83. [DOI: 10.1016/j.neuro.2022.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/17/2022] [Accepted: 05/02/2022] [Indexed: 12/14/2022]
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4
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Gatiatulina ER, Sheina EA, Nemereshina ON, Popova EV, Polyakova VS, Agletdinov EF, Sinitskii AI, Skalny AV, Nikonorov AA, Tinkov AA. Effect of Zn Supplementation on Trace Element Status in Rats with Diet-Induced Non-alcoholic Fatty Liver Disease. Biol Trace Elem Res 2020; 197:202-212. [PMID: 31832925 DOI: 10.1007/s12011-019-01985-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Abstract
The present study aimed to assess the effect of Zn supplementation on trace element levels in the liver, serum, and hair of rats with dietary-induced non-alcoholic fatty liver disease (NAFLD). A total of 26 3-month-old female Wistar rats were divided into four groups: control, NAFLD, Zn-supplemented (227 mg/L zinc as Zn sulfate Zn(SO)4 dissolved in a drinking water), and NAFLD-Zn-supplemented. NAFLD was verified by histological assessment of liver samples. The serum was examined for routine biochemical parameters. Trace elements content was assessed using inductively coupled plasma mass spectrometry (ICP-MS). Zn treatment resulted in an improvement in liver weight and morphology. Dietary supplementation with Zn prevented NAFLD-induced decrease liver Co. The tendency to increase liver Fe in the Zn-treated group was observed. Zn treatment decreased hepatic Al and serum V levels. However, Zn administration did not affect NAFLD-induced I, Mn, and Se depletion in the liver. Hair Zn levels raised in Zn-supplemented groups. Conclusively, the results of the study indicate that Zn supplementation could have a beneficial effect in modulation of the altered trace element status and liver morphology. HIGHLIGHTS: •Zn treatment improved liver weight and morphology in rats with NAFLD. •Zn supplementation decreased liver Al in NAFLD. •Treatment by Zn prevented depletion of liver Co. •Zn decreased serum V and increased hair Zn levels. •No effect of Zn on NAFLD-induced hepatic I, Mn and Se depletion was observed.
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Affiliation(s)
- Eugenia R Gatiatulina
- All-Russian Research Institute of Medicinal and Aromatic Plants (VILAR), Grina St., 7, Moscow, 117216, Russia.
| | - Evgenia A Sheina
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St., 6, Moscow, 105064, Russia
| | - Olga N Nemereshina
- Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
| | - Elizaveta V Popova
- St. Joseph College of Health and Allied Sciences, St Joseph University in Tanzania, 11007, Dar es Salaam, Tanzania
| | | | | | - Anton I Sinitskii
- South Ural State Medical University, Vorovskogo St., 64, Chelyabinsk, 454092, Russia
| | - Anatoly V Skalny
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St., 6, Moscow, 105064, Russia
- Yaroslavl State University, Sovetskaya St., 14, Yaroslavl, 150000, Russia
- IM Sechenov First Moscow State Medical University, Trubetskaya St., 8-2, Moscow, 119991, Russia
| | - Alexandr A Nikonorov
- State Research Center of Dermatovenerology and Cosmetology, Korolenko St., 3-6, Moscow, 107076, Russia
| | - Alexey A Tinkov
- Peoples' Friendship University of Russia (RUDN University), Miklukho-Maklaya St., 6, Moscow, 105064, Russia
- Yaroslavl State University, Sovetskaya St., 14, Yaroslavl, 150000, Russia
- IM Sechenov First Moscow State Medical University, Trubetskaya St., 8-2, Moscow, 119991, Russia
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Zyśk M, Sakowicz-Burkiewicz M, Pikul P, Kowalski R, Michno A, Pawełczyk T. The Impact of Acetyl-CoA and Aspartate Shortages on the N-Acetylaspartate Level in Different Models of Cholinergic Neurons. Antioxidants (Basel) 2020; 9:antiox9060522. [PMID: 32545833 PMCID: PMC7346116 DOI: 10.3390/antiox9060522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/03/2020] [Accepted: 06/11/2020] [Indexed: 12/31/2022] Open
Abstract
N-acetylaspartate is produced by neuronal aspartate N-acetyltransferase (NAT8L) from acetyl-CoA and aspartate. In cholinergic neurons, acetyl-CoA is also utilized in the mitochondrial tricarboxylic acid cycle and in acetylcholine production pathways. While aspartate has to be shared with the malate–aspartate shuttle, another mitochondrial machinery together with the tricarboxylic acid cycle supports the electron transport chain turnover. The main goal of this study was to establish the impact of toxic conditions on N-acetylaspartate production. SN56 cholinergic cells were exposed to either Zn2+ overload or Ca2+ homeostasis dysregulation and male adult Wistar rats’ brains were studied after 2 weeks of challenge with streptozotocin-induced hyperglycemia or daily theophylline treatment. Our results allow us to hypothesize that the cholinergic neurons from brain septum prioritized the acetylcholine over N-acetylaspartate production. This report provides the first direct evidence for Zn2+-dependent suppression of N-acetylaspartate synthesis leading to mitochondrial acetyl-CoA and aspartate shortages. Furthermore, Zn2+ is a direct concentration-dependent inhibitor of NAT8L activity, while Zn2+-triggered oxidative stress is unlikely to be significant in such suppression.
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Affiliation(s)
- Marlena Zyśk
- Department of Molecular Medicine, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.S.-B.); (T.P.)
- Correspondence: ; Tel.: +48-5834-927-70
| | - Monika Sakowicz-Burkiewicz
- Department of Molecular Medicine, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.S.-B.); (T.P.)
| | - Piotr Pikul
- Laboratory of Molecular and Cellular Nephrology, Mossakowski Medical Research Center, Polish Academy of Science, 80-308 Gdansk, Poland;
- Clinical Laboratory University Clinical Center in Gdansk, 80-211 Gdansk, Poland;
| | - Robert Kowalski
- Clinical Laboratory University Clinical Center in Gdansk, 80-211 Gdansk, Poland;
| | - Anna Michno
- Department of Laboratory Medicine, Medical University of Gdansk, 80-2011 Gdansk, Poland;
| | - Tadeusz Pawełczyk
- Department of Molecular Medicine, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.S.-B.); (T.P.)
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6
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AL-Harbi MS. Antioxidant, Protective Effect of Black Berry and Quercetin Against Hepatotoxicity Induced by Aluminum Chloride in Male Rats. INT J PHARMACOL 2019. [DOI: 10.3923/ijp.2019.494.502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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7
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Li M, Cui ZG, Zakki SA, Feng Q, Sun L, Feril LB, Inadera H. Aluminum chloride causes 5-fluorouracil resistance in hepatocellular carcinoma HepG2 cells. J Cell Physiol 2019; 234:20249-20265. [PMID: 30993729 DOI: 10.1002/jcp.28625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 01/18/2023]
Abstract
Chemoresistance is one of the major obstacles in chemotherapy-based hepatocellular carcinoma (HCC) intervention. Aluminum (Al) is an environmental pollutant that plays a vital role in carcinogenesis, tumorigenesis, and metastasis. However, the effect of Al on chemoresistance remains unknown. 5-Fluorouracil (5-FU) is a widely used antitumor drug. Therefore, we investigated the effects of aluminum chloride (AlCl3 ) on the chemoresistance of HepG2 cells to 5-FU and explored the underlying mechanisms of these effects. The results demonstrated that AlCl3 pretreatment attenuated 5-FU-induced apoptosis through Erk activation and reversed 5-FU-induced cell cycle arrest by downregulating p-Chk2Thr68 levels. In addition, AlCl3 markedly increased the levels of proteins associated with cell migration, such as MMP-2 and MMP-9. Further investigation demonstrated that an Erk inhibitor (U0126) reversed the AlCl3 -induced decrease in apoptosis, enhancement of cell cycle progression, promotion of cell migration, and attenuation of oxidative stress. In summary, AlCl3 induced chemoresistance to 5-FU in HepG2 cells. The present study suggests a potential influence of AlCl3 on 5-FU therapy. These findings may help others to understand and properly address the resistance of HCC to chemotherapeutic agents.
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Affiliation(s)
- Mengling Li
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
| | - Zheng-Guo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan.,Graduate School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Shahbaz Ahmad Zakki
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
| | - Qianwen Feng
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
| | - Lu Sun
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
| | - Loreto B Feril
- Department of Anatomy, Fukuoka University School of Medicine, Fukuoka, Japan
| | - Hidekuni Inadera
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
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8
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Mohamed WA, El-Houseiny W, Ibrahim RE, Abd-Elhakim YM. Palliative effects of zinc sulfate against the immunosuppressive, hepato- and nephrotoxic impacts of nonylphenol in Nile tilapia (Oreochromis niloticus). AQUACULTURE 2019; 504:227-238. [DOI: 10.1016/j.aquaculture.2019.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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9
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Tian F, Yu L, Zhai Q, Xiao Y, Shi Y, Jiang J, Liu X, Zhao J, Zhang H, Chen W. The therapeutic protection of a living and dead Lactobacillus strain against aluminum-induced brain and liver injuries in C57BL/6 mice. PLoS One 2017; 12:e0175398. [PMID: 28388664 PMCID: PMC5384776 DOI: 10.1371/journal.pone.0175398] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/25/2017] [Indexed: 11/19/2022] Open
Abstract
Our previous study found that Lactobacillus plantarum CCFM639 had the ability to alleviate acute aluminum (Al) toxicity when the strain was introduced simultaneously with Al exposure. This research was designed to elucidate the therapeutic effects of living and dead L. plantarum CCFM639 against chronic Al toxicity and to gain insight into the protection modes of this strain. Animals were assigned into control, Al only, Al + living CCFM639, and Al + dead CCFM639 groups. The Al exposure model was established by drinking water for the first 4 weeks. The strain was given after Al exposure by oral gavage at 109 colony-forming units once per day for 12 weeks. The results show that the Al binding ability of dead CCFM639 was similar to that of living CCFM639 in vitro. The ingestion of living or dead CCFM639 has similar effects on levels of Al and trace element in tissues, but living strains led to more significant amelioration of oxidative stress and improvement of memory deficits in Al-exposed mice. In conclusion, in addition to intestinal Al sequestration, CCFM639 treatment offers direct protection against chronic Al toxicity by alleviation of oxidative stress. Therefore, L. plantarum CCFM639 has a potential as dietary supplement ingredient that provides protection against Al-induced injury.
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Affiliation(s)
- Fengwei Tian
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
- UK-China Joint Centre on Probiotic Bacteria, Norwich, United Kingdom
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
- UK-China Joint Centre on Probiotic Bacteria, Norwich, United Kingdom
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
- UK-China Joint Centre on Probiotic Bacteria, Norwich, United Kingdom
| | - Yue Xiao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Ying Shi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Jinchi Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Xiaoming Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
- UK-China Joint Centre on Probiotic Bacteria, Norwich, United Kingdom
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
- UK-China Joint Centre on Probiotic Bacteria, Norwich, United Kingdom
- Beijing Innovation Centre of Food Nutrition and Human Health, Beijing Technology & Business University, Beijing, P.R. China
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10
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Effect of Nanoparticles on Modified Screen Printed Inhibition Superoxide Dismutase Electrodes for Aluminum. SENSORS 2016; 16:s16101588. [PMID: 27681735 PMCID: PMC5087377 DOI: 10.3390/s16101588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/10/2016] [Accepted: 09/20/2016] [Indexed: 11/17/2022]
Abstract
A novel amperometric biosensor for the determination of Al(III) based on the inhibition of the enzyme superoxide dismutase has been developed. The oxidation signal of epinephrine substrate was affected by the presence of Al(III) ions leading to a decrease in its amperometric current. The immobilization of the enzyme was performed with glutaraldehyde on screen-printed carbon electrodes modifiedwith tetrathiofulvalene (TTF) and different types ofnanoparticles. Nanoparticles of gold, platinum, rhodium and palladium were deposited on screen printed carbon electrodes by means of two electrochemical procedures. Nanoparticles were characterized trough scanning electronic microscopy, X-rays fluorescence, and atomic force microscopy. Palladium nanoparticles showed lower atomic force microscopy parameters and higher slope of aluminum calibration curves and were selected to perform sensor validation. The developed biosensor has a detection limit of 2.0 ± 0.2 μM for Al(III), with a reproducibility of 7.9% (n = 5). Recovery of standard reference material spiked to buffer solution was 103.8% with a relative standard deviation of 4.8% (n = 5). Recovery of tap water spiked with the standard reference material was 100.5 with a relative standard deviation of 3.4% (n = 3). The study of interfering ions has also been carried out.
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11
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Yang Y, Wang H, Guo Y, Lei W, Wang J, Hu X, Yang J, He Q. Metal Ion Imbalance-Related Oxidative Stress Is Involved in the Mechanisms of Liver Injury in a Rat Model of Chronic Aluminum Exposure. Biol Trace Elem Res 2016; 173:126-31. [PMID: 26811106 DOI: 10.1007/s12011-016-0627-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
Abstract
The objective of the study is to investigate the effects of chronic aluminum overload on rat liver function and its induction of pathological changes in metal ion levels and oxidative stress in hepatic tissues. Wistar rats were intragastrically administered aluminum gluconate (200 mg Al(3+)/Kg) once a day, 5 days a week, for 20 weeks. HE staining was used to visualize pathological changes in rat liver tissue. A biochemical method was adopted to detect ALT, AST, ALP, and GGT levels, as well as liver SOD activity and blood plasma MDA content. A plasma atomic emission spectrophotometer was used to detect Al, Mn, Fe, Zn, and Cu ion contents in liver tissue. Our results showed obvious vacuolar degeneration, granular degeneration, and spotty necrosis in chronic Al-overload rat hepatocytes. The levels of ALT, AST, ALP, and GGT were significantly increased. Liver SOD activity was significantly decreased, and MDA content was significantly increased. In Al-overload rat liver, Al, Mn, Fe, and Cu contents were significantly increased, and in Al-overload rat serum, Mn, Fe, Zn, and Cu contents were significantly decreased. However, the Al level in Al-overload rat serum was not significantly different from that in control rat serum. These results suggest that chronic aluminum overload causes obvious damage to rat liver and causes imbalances in Al, Mn, Fe, Zn, and Cu levels in rat liver and serum. Metal ion imbalance-related oxidative stress may be involved in the mechanism of chronic liver injury caused by aluminum overload.
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Affiliation(s)
- Yang Yang
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Hong Wang
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Yuanxin Guo
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Wenjuan Lei
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Jianfeng Wang
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Xinyue Hu
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China
| | - Junqing Yang
- Department of Pharmacology, Chongqing Medical University, The Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing, 400016, China.
| | - Qin He
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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12
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Skalny AA, Tinkov AA, Medvedeva YS, Alchinova IB, Karganov MY, Ajsuvakova OP, Skalny AV, Nikonorov AA. Zinc asparaginate supplementation induces redistribution of toxic trace elements in rat tissues and organs. Interdiscip Toxicol 2016; 8:131-8. [PMID: 27486372 PMCID: PMC4961909 DOI: 10.1515/intox-2015-0020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/25/2015] [Accepted: 09/27/2015] [Indexed: 01/17/2023] Open
Abstract
The primary objective of the current study was the investigation of the influence of zinc asparaginate supplementation for 7 and 14 days on toxic metal and metalloid content in rat organs and tissues. Rats obtained zinc asparaginate in doses of 5 and 15 mg/kg/day for 7 and 14 days. At the end of the experiment rat tissues and organs (liver, kidney, heart, m. gastrocnemius, serum, and hair) were collected for subsequent analysis. Estimation of Zn, Al, As, Li, Ni, Sn, Sr content in the harvested organs was performed using inductively coupled plasma mass spectrometry at NexION 300D. The obtained data showed that intragastric administration of zinc significantly increased liver, kidney and serum zinc concentrations. Seven-day zinc treatment significantly affected the toxic trace element content in the animals’ organs. Zinc supplementation significantly decreased particularly liver aluminium, nickel, and tin content, whereas lead tended to increase. Zinc-induced changes in kidney metal content were characterized by elevated lithium and decreased nickel concentration. Zinc-induced alteration of myocardical toxic element content was multidirectional. Muscle aluminium and lead concentration were reduced in response to zinc supplementation. At the same time, serum and hair toxic element concentrations remained relatively stable after 7-day zinc treatment. Zinc asparaginate treatment of 14 days significantly depressed liver and elevated kidney lithium content, whereas a significant zinc-associated decrease was detected in kidney strontium content. Zinc supplementation for 14 days resulted also in multidirectional changes in the content of heart toxic elements. At the same time, significant zinc-associated decrease in muscle lithium and nickel levels was observed. Fourteen-day zinc treatment resulted in significantly increased serum arsenic and tin concentrations, whereas hair trace element content remained relatively stable. Generally, the obtained data indicate a significant redistribution of toxic metals in the animal organism under zinc supplementation.
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Affiliation(s)
- Andrey A Skalny
- Federal State Scientific Institution "Institute of Toxicology", Federal Medico-Biological Agency, Bekhtereva str. 1, St. Petersburg 192019, Russia; Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow 105064, Russia
| | - Alexey A Tinkov
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow 105064, Russia; Laboratory of Biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia; Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
| | - Yulia S Medvedeva
- Laboratory of Physicochemical and Ecological Pathophysiology, Institute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia
| | - Irina B Alchinova
- Laboratory of Physicochemical and Ecological Pathophysiology, Institute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia
| | - Mikhail Yu Karganov
- Laboratory of Physicochemical and Ecological Pathophysiology, Institute of General Pathology and Pathophysiology, Baltiyskaya St., 8, Moscow, 125315, Russia
| | - Olga P Ajsuvakova
- Department of Chemistry and Methods of Chemistry Teaching, Orenburg State Pedagogical University, Sovetskaya st., 19, Orenburg, 460014, Russia
| | - Anatoly V Skalny
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow 105064, Russia; Laboratory of Biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia; Institute of Bioelementology (Russian Satellite Centre of Trace Element - Institute for UNESCO), Orenburg State University, Pobedy Ave. 13, Orenburg 460352, Russia
| | - Alexandr A Nikonorov
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
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Ellagic and ferulic acids alleviate gamma radiation and aluminium chloride-induced oxidative damage. Life Sci 2016; 160:2-11. [PMID: 27436544 DOI: 10.1016/j.lfs.2016.07.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 01/27/2023]
Abstract
AIM Ionizing radiation interacts with biological systems through the generation of free radicals, which induce oxidative stress. Aluminium (Al) can negatively impact human health by direct interaction with antioxidant enzymes. Ellagic acid (EA) and Ferulic acid (FA) are plant polyphenolic compounds, have gained attention due to their multiple biological activities. To date, no studies investigating the antioxidant effect of EA/FA in a model involving both γ radiation and aluminium chloride (AlCl3) have been reported. Herein, we investigated the protective effect of EA and FA against oxidative stress induced by γ radiation and AlCl3 in rats. METHODS Rats were divided into thirteen groups: a negative control group, 3 positive control groups (γ-irradiated, AlCl3-treated and γ-irradiated+AlCl3-treated) and 9 groups (3 γ-irradiated, 3 AlCl3-treated and 3 γ-irradiated+AlCl3-treated) treated with EA and/or FA. Liver function and lipid profile were assessed. Levels of lipid peroxidation, protein oxidation and endogenous antioxidants as well as the concentrations of copper, iron and zinc were estimated in liver tissue homogenate. Furthermore, liver tissue sections were histologically examined. RESULTS Oral administration of EA and/or FA resulted in 1) amelioration of AlCl3 and/or γ-radiation-induced hepatic function impairment, dyslipidemia and hepatic histological alterations; 2) reduction in liver MDA and PCC levels; 3) elevation of liver CAT, GPx and SOD activity as well as GSH level; 4) elevation in liver Cu concentrations which was accompanied by a reduction in Fe and Zn concentrations. CONCLUSIONS Oral administration of EA and/or FA may be useful for ameliorating γ radiation and/or AlCl3-induced oxidative damage.
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Wang B, Zhu Y, Zhang H, Liu L, Li G, Song Y, Li Y. Effects of aluminum chloride on serum proteins, bilirubin, and hepatic trace elements in chickens. Toxicol Ind Health 2016; 32:1693-9. [DOI: 10.1177/0748233715578035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to reveal the effects of aluminum chloride (AlCl3) on the hepatic metabolism function and trace elements’ distribution. Two hundred healthy male chickens (1 day old) were intraperitoneally administered with AlCl3 (0, 18.31, 27.47, and 36.62 mg kg−1 day−1 of Al3+) consecutively for 3 days. Then the chickens were allowed to rest for 1 day. The cycle lasted four days. The cycle was repeated 15 times (60 days). The contents of serum total protein (TP), albumin (ALB), total bilirubin (TBI), direct bilirubin (DBI), hepatic aluminum (Al), copper (Cu), iron (Fe), and zinc (Zn) were examined. The results showed that the contents of serum TP and ALB and hepatic Fe and Zn decreased and the contents of serum TBI and DBI and hepatic Al and Cu increased in the chickens with AlCl3. This indicates that chronic administration of AlCl3 impairs the hepatic metabolism function and disorders the hepatic trace elements’ distribution.
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Affiliation(s)
- Ben Wang
- College of Veterinary Medicine, Jilin Science and Technology Vocational College, Jilin, China
| | - Yanzhu Zhu
- Institute of Special Animal and Plant Sciences of Chinese Academy of Agricultural Sciences, Changchun, China
| | - Hongling Zhang
- College of Veterinary Medicine, Jilin Science and Technology Vocational College, Jilin, China
| | - Liming Liu
- College of Veterinary Medicine, Jilin Science and Technology Vocational College, Jilin, China
| | - Guojiang Li
- College of Veterinary Medicine, Jilin Science and Technology Vocational College, Jilin, China
| | - Yongli Song
- College of Veterinary Medicine, Jilin Science and Technology Vocational College, Jilin, China
| | - Yanfei Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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15
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Adebayo OL, Adenuga GA, Sandhir R. Selenium and zinc protect brain mitochondrial antioxidants and electron transport chain enzymes following postnatal protein malnutrition. Life Sci 2016; 152:145-55. [PMID: 26965089 DOI: 10.1016/j.lfs.2016.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/23/2016] [Accepted: 03/04/2016] [Indexed: 01/24/2023]
Abstract
AIMS Selenium (Se) and zinc (Zn) are trace elements required for optimal brain functions. Thus, the role of Se and Zn against protein malnutrition induced oxidative stress on mitochondrial antioxidants and electron transport chain (ETC) enzymes from rats' brain were investigated. MAIN METHODS Normal protein (NP) and low protein (LP) rats were fed with diets containing 16% and 5% casein respectively for a period of 10weeks. Then the rats were supplemented with Se and Zn at a concentration of 0.15mgL(-1) and 227mgL(-1) in drinking water for 3weeks after which the rats were sacrificed. KEY FINDINGS The results obtained from the study showed significant (p<0.05) increase in lipid peroxidation (LPO), ROS production, oxidized glutathione (GSSG) levels and mitochondrial swelling and significant (p<0.05) reductions in catalase (CAT) and Mn-superoxide dismutase (Mn-SOD) activities, glutathione (GSH) levels, GSH/GSSG ratio and MTT reduction as a result of LP ingestion. The activities of mitochondrial ETC enzymes were also significantly inhibited in both the cortex and cerebellum of LP-fed rats. Supplementation with either Se or Zn restored the alterations in all the parameters. SIGNIFICANCE The study showed that Se and Zn might be beneficial in protecting mitochondrial antioxidants and ETC enzymes against protein malnutrition induced oxidative stress.
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Affiliation(s)
- Olusegun L Adebayo
- Department of Biochemistry, Basic Medical Science Building, Panjab University, Sector 25, 160014, Chandigarh, India; Department of Chemical Sciences, College of Natural Sciences, Redeemer's University, P.M.B. 230, Ede, Osun State, Nigeria; Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, P.M.B. 2005, Remo Campus, Ikenne, Ogun State, Nigeria
| | - Gbenga A Adenuga
- Department of Biochemistry, Faculty of Basic Medical Sciences, Olabisi Onabanjo University, P.M.B. 2005, Remo Campus, Ikenne, Ogun State, Nigeria
| | - Rajat Sandhir
- Department of Biochemistry, Basic Medical Science Building, Panjab University, Sector 25, 160014, Chandigarh, India.
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Mohammad NS, Arafa MH, Atteia HH. Coenzyme Q10 and fish oil synergistically alleviate aluminum chloride-induced suppression of testicular steroidogenesis and antioxidant defense. Free Radic Res 2015; 49:1319-34. [DOI: 10.3109/10715762.2015.1069290] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Singla N, Dhawan DK. Modulation of (14) C-labeled glucose metabolism by zinc during aluminium induced neurodegeneration. J Neurosci Res 2015; 93:1434-41. [PMID: 25908409 DOI: 10.1002/jnr.23596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 12/24/2022]
Abstract
Aluminium (Al) is one of the most prominent metals in the environment and is responsible for causing several neurological disorders, including Alzheimer's disease. On the other hand, zinc (Zn) is an essential micronutrient that is involved in regulating brain development and function. The present study investigates the protective potential of Zn in the uptake of (14) C-labeled amino acids and glucose and their turnover in rat brain slices during Al intoxication. Male Sprague Dawley rats (140-160 g) were divided into four different groups: normal control, Al treated (100 mg/kg body weight/day via oral gavage), Zn treated (227 mg/liter in drinking water), and Al + Zn treated. Radiorespirometric assay revealed an increase in glucose turnover after Al exposure that was attenuated after Zn treatment. Furthermore, the uptake of (14) C-labeled glucose was increased after Al treatment but was appreciably decreased upon Zn supplementation. In addition, the uptakes of (14) C-lysine, (14) C-leucine, and (14) C-aspartic acid were also found to be elevated following Al exposure but were decreased after Zn treatment. Al treatment also caused alterations in the neurohistoarchitecture of the brain, which were improved after Zn coadministration. Therefore, the present study suggests that Zn provides protection against Al-induced neurotoxicity by regulating glucose and amino acid uptake in rats, indicating that Zn could be a potential candidate for the treatment of various neurodegenerative disorders.
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Affiliation(s)
- Neha Singla
- Department of Biophysics, Panjab University, Chandigarh, India
| | - D K Dhawan
- Department of Biophysics, Panjab University, Chandigarh, India
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Liang T, Zhang Q, Sun W, Xin Y, Zhang Z, Tan Y, Zhou S, Zhang C, Cai L, Lu X, Cheng M. Zinc treatment prevents type 1 diabetes-induced hepatic oxidative damage, endoplasmic reticulum stress, and cell death, and even prevents possible steatohepatitis in the OVE26 mouse model: Important role of metallothionein. Toxicol Lett 2015; 233:114-24. [PMID: 25617602 DOI: 10.1016/j.toxlet.2015.01.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 01/11/2015] [Accepted: 01/18/2015] [Indexed: 12/22/2022]
Abstract
Whether zinc is able to improve diabetes-induced liver injury remains unknown. Transgenic type 1 diabetic (OVE26) mice develop hyperglycemia at 3 weeks old; therefore therapeutic effect of zinc on diabetes-induced liver injury was investigated in OVE26 mice. Three-month old OVE26 and age-matched wild-type mice were treated by gavage with saline or zinc at 5mg/kg body-weight every other day for 3 months. Hepatic injury was examined by serum alanine aminotransferase (ALT) level with liver histopathological and biochemical changes. OVE26 mice at 6 months old showed significant increases in serum ALT level and hepatic oxidative damage, endoplasmic reticulum stress and associated cell death, mild inflammation, and fibrosis. However, all these hepatic morphological and functional changes were significantly prevented in 3-month zinc-treated OVE26 mice. Mechanistically, zinc treatment significantly increased hepatic metallothionein, a protein with known antioxidant activity, in both wild-type and OVE26 mice. These results suggest that there were significantly functional, structural and biochemical abnormalities in the liver of OVE26 diabetic mice at 6 months old; however, all these changes could be prevented with zinc treatment, which was associated with the upregulation of hepatic metallothionein expression.
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Affiliation(s)
- Tingting Liang
- Department of Infectious Diseases, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, China; The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China; Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA
| | - Quan Zhang
- Department of Infectious Diseases, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, China; Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA
| | - Weixia Sun
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China; The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Ying Xin
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China; The Key Laboratory of Pathobiology of Ministry of Education at The Norman Bethune Medical College of Jilin University, Changchun, Jilin 130021, China
| | - Zhiguo Zhang
- Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA; The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Yi Tan
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China; Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA
| | - Shanshan Zhou
- Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA; The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Chi Zhang
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China
| | - Lu Cai
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China; Kosair Children's Hospital Research Institute, The Department of Pediatrics of the University of Louisville, Louisville, KY 40202, USA.
| | - Xuemian Lu
- The RuiAn Center of Chinese-American Research Institute for Diabetic Complications, The Department of Endocrinology of The Third Affiliated Hospital of Wenzhou Medical University, RuiAn, Zhejiang 325200, China
| | - Mingliang Cheng
- Department of Infectious Diseases, Affiliated Hospital of Guiyang Medical College, Guiyang, Guizhou 550004, China.
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Zinc down regulates Apaf-1-dependent Bax/Bcl-2 mediated caspases activation during aluminium induced neurotoxicity. Biometals 2014; 28:61-73. [DOI: 10.1007/s10534-014-9803-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 10/18/2014] [Indexed: 12/15/2022]
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20
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Zhao L, Song Y, Pu J, Guo J, Wang Y, Chen Z, Chen T, Gu Y, Jia G. Effects of repeated Cr(VI) intratracheal instillation on club (Clara) cells and activation of nuclear factor-kappa B pathway via oxidative stress. Toxicol Lett 2014; 231:72-81. [DOI: 10.1016/j.toxlet.2014.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 09/06/2014] [Accepted: 09/15/2014] [Indexed: 11/25/2022]
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Willhite CC, Karyakina NA, Yokel RA, Yenugadhati N, Wisniewski TM, Arnold IMF, Momoli F, Krewski D. Systematic review of potential health risks posed by pharmaceutical, occupational and consumer exposures to metallic and nanoscale aluminum, aluminum oxides, aluminum hydroxide and its soluble salts. Crit Rev Toxicol 2014; 44 Suppl 4:1-80. [PMID: 25233067 PMCID: PMC4997813 DOI: 10.3109/10408444.2014.934439] [Citation(s) in RCA: 239] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract Aluminum (Al) is a ubiquitous substance encountered both naturally (as the third most abundant element) and intentionally (used in water, foods, pharmaceuticals, and vaccines); it is also present in ambient and occupational airborne particulates. Existing data underscore the importance of Al physical and chemical forms in relation to its uptake, accumulation, and systemic bioavailability. The present review represents a systematic examination of the peer-reviewed literature on the adverse health effects of Al materials published since a previous critical evaluation compiled by Krewski et al. (2007) . Challenges encountered in carrying out the present review reflected the experimental use of different physical and chemical Al forms, different routes of administration, and different target organs in relation to the magnitude, frequency, and duration of exposure. Wide variations in diet can result in Al intakes that are often higher than the World Health Organization provisional tolerable weekly intake (PTWI), which is based on studies with Al citrate. Comparing daily dietary Al exposures on the basis of "total Al"assumes that gastrointestinal bioavailability for all dietary Al forms is equivalent to that for Al citrate, an approach that requires validation. Current occupational exposure limits (OELs) for identical Al substances vary as much as 15-fold. The toxicity of different Al forms depends in large measure on their physical behavior and relative solubility in water. The toxicity of soluble Al forms depends upon the delivered dose of Al(+3) to target tissues. Trivalent Al reacts with water to produce bidentate superoxide coordination spheres [Al(O2)(H2O4)(+2) and Al(H2O)6 (+3)] that after complexation with O2(•-), generate Al superoxides [Al(O2(•))](H2O5)](+2). Semireduced AlO2(•) radicals deplete mitochondrial Fe and promote generation of H2O2, O2 (•-) and OH(•). Thus, it is the Al(+3)-induced formation of oxygen radicals that accounts for the oxidative damage that leads to intrinsic apoptosis. In contrast, the toxicity of the insoluble Al oxides depends primarily on their behavior as particulates. Aluminum has been held responsible for human morbidity and mortality, but there is no consistent and convincing evidence to associate the Al found in food and drinking water at the doses and chemical forms presently consumed by people living in North America and Western Europe with increased risk for Alzheimer's disease (AD). Neither is there clear evidence to show use of Al-containing underarm antiperspirants or cosmetics increases the risk of AD or breast cancer. Metallic Al, its oxides, and common Al salts have not been shown to be either genotoxic or carcinogenic. Aluminum exposures during neonatal and pediatric parenteral nutrition (PN) can impair bone mineralization and delay neurological development. Adverse effects to vaccines with Al adjuvants have occurred; however, recent controlled trials found that the immunologic response to certain vaccines with Al adjuvants was no greater, and in some cases less than, that after identical vaccination without Al adjuvants. The scientific literature on the adverse health effects of Al is extensive. Health risk assessments for Al must take into account individual co-factors (e.g., age, renal function, diet, gastric pH). Conclusions from the current review point to the need for refinement of the PTWI, reduction of Al contamination in PN solutions, justification for routine addition of Al to vaccines, and harmonization of OELs for Al substances.
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Affiliation(s)
- Calvin C. Willhite
- Risk Sciences International, Ottawa, ON, Canada
- McLaughlin Centre for Population Health Risk Assessment, Ottawa, ON, Canada
| | | | - Robert A. Yokel
- Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky, USA
| | | | - Thomas M. Wisniewski
- Departments of Neurology, Psychiatry and Pathology, New York University School of Medicine, New York City, New York, USA
| | - Ian M. F. Arnold
- Occupational Health Program, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Franco Momoli
- Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, ON, Canada
| | - Daniel Krewski
- Risk Sciences International, Ottawa, ON, Canada
- McLaughlin Centre for Population Health Risk Assessment, Ottawa, ON, Canada
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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Zhang C, Li Y, Wang C, Lv R, Song T. Extremely low-frequency magnetic exposure appears to have no effect on pathogenesis of Alzheimer's disease in aluminum-overloaded rat. PLoS One 2013; 8:e71087. [PMID: 23951088 PMCID: PMC3741340 DOI: 10.1371/journal.pone.0071087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 06/25/2013] [Indexed: 12/16/2022] Open
Abstract
Objective Extremely low-frequency magnetic field (ELF-MF) has been reported to be of potential pathogenetic relevance to Alzheimer's disease (AD) for years. However, evidence confirming this function remains inconclusive. Chronic Al treatment has been identified as a contributing factor to cognitive function impairment in AD. This study aims to examine whether or not ELF-MF and Al have synergistic effects toward AD pathogenesis by investigating the effects of ELF-MF with or without chronic Al treatment on SD rats. Methods Sprague-Dawley (SD) rats were subjected one of the following treatments: sham (control group), oral Al (Al group), ELF-MF (100 µT at 50 Hz) with oral Al (MF+Al group), or ELF-MF (100 µT at 50 Hz) without oral Al (MF group). Results After 12 wk of treatment, oral Al treatment groups (Al and MF+Al groups) showed learning and memory impairment as well as morphological hallmarks, including neuronal cell loss and high density of amyloid-β (Aβ) in the hippocampus and cerebral cortex. ELF-MF without Al treatment showed no significant effect on AD pathogenesis. ELF-MF+Al treatment induced no more damage than Al treatment did. Conclusions Our results showed no evidence of any association between ELF-MF exposure (100 µT at 50 Hz) and AD, and ELF-MF exposure does not influence the pathogenesis of AD induced by Al overload.
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Affiliation(s)
- Cheng Zhang
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yue Li
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Chao Wang
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ruili Lv
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
| | - Tao Song
- Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China
- * E-mail:
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Han S, Lemire J, Appanna VP, Auger C, Castonguay Z, Appanna VD. How aluminum, an intracellular ROS generator promotes hepatic and neurological diseases: the metabolic tale. Cell Biol Toxicol 2013; 29:75-84. [PMID: 23463459 DOI: 10.1007/s10565-013-9239-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 02/04/2013] [Indexed: 01/10/2023]
Abstract
Metal pollutants are a global health risk due to their ability to contribute to a variety of diseases. Aluminum (Al), a ubiquitous environmental contaminant is implicated in anemia, osteomalacia, hepatic disorder, and neurological disorder. In this review, we outline how this intracellular generator of reactive oxygen species (ROS) triggers a metabolic shift towards lipogenesis in astrocytes and hepatocytes. This Al-evoked phenomenon is coupled to diminished mitochondrial activity, anerobiosis, and the channeling of α-ketoacids towards anti-oxidant defense. The resulting metabolic reconfiguration leads to fat accumulation and a reduction in ATP synthesis, characteristics that are common to numerous medical disorders. Hence, the ability of Al toxicity to create an oxidative environment promotes dysfunctional metabolic processes in astrocytes and hepatocytes. These molecular events triggered by Al-induced ROS production are the potential mediators of brain and liver disorders.
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Affiliation(s)
- Sungwon Han
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
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