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Badawy MM, Sayed-Ahmed MZ, Almoshari Y, Alqahtani SS, Alshahrani S, Mabrouk HAA, Abd-Elsalam MM, Alkashif K, Ahmad S, El-Sebaey AM, Hamama MG, Ahmed DAM. Magnesium Supplementation Alleviates the Toxic Effects of Silica Nanoparticles on the Kidneys, Liver, and Adrenal Glands in Rats. TOXICS 2023; 11:381. [PMID: 37112608 PMCID: PMC10141093 DOI: 10.3390/toxics11040381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Concerns regarding the possible hazards to human health have been raised by the growing usage of silica nanoparticles (SiNPs) in a variety of applications, including industrial, agricultural, and medical applications. This in vivo subchronic study was conducted to assess the following: (1) the toxicity of orally administered SiNPs on the liver, kidneys, and adrenal glands; (2) the relationship between SiNPs exposure and oxidative stress; and (3) the role of magnesium in mitigating these toxic effects. A total of 24 Sprague Dawley male adult rats were divided equally into four groups, as follows: control group, magnesium (Mg) group (50 mg/kg/d), SiNPs group (100 mg/kg/d), and SiNPs+ Mg group. Rats were treated with SiNPs by oral gavage for 90 days. The liver transaminases, serum creatinine, and cortisol levels were evaluated. The tissue malondialdehyde (MDA) and reduced glutathione (GSH) levels were measured. Additionally, the weight of the organs and the histopathological changes were examined. Our results demonstrated that SiNPs exposure caused increased weight in the kidneys and adrenal glands. Exposure to SiNPs was also associated with significant alterations in liver transaminases, serum creatinine, cortisol, MDA, and GSH. Additionally, histopathological changes were significantly reported in the liver, kidneys, and adrenal glands of SiNPs-treated rats. Notably, when we compared the control group with the treated groups with SiNPs and Mg, the results revealed that magnesium could mitigate SiNPs-induced biochemical and histopathologic changes, confirming its effective role as an antioxidant that reduced the accumulation of SiNPs in tissues, and that it returns the levels of liver transaminases, serum creatinine, cortisol, MDA, and GSH to almost normal values.
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Affiliation(s)
- Mohamed Moharram Badawy
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Delta University for Science and Technology, Gamasa 11152, Egypt
| | - Mohamed Z. Sayed-Ahmed
- Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Yosif Almoshari
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Saad S. Alqahtani
- Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Saeed Alshahrani
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Heba Allah Ali Mabrouk
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Kafrelsheikh University, Kafr el-Sheikh 33516, Egypt
| | - Marwa M. Abd-Elsalam
- Department of Histology, Faculty of Medicine, Kafrelsheikh University, Kafr el-Sheikh 33516, Egypt
| | - Khalid Alkashif
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Sarfaraz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, Jazan University, Jizan 45142, Saudi Arabia
| | - Ahmed M. El-Sebaey
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed G. Hamama
- Anatomy Department, Faculty of Medicine, Tanta University, Tanta 31527, Egypt
| | - Dalia Alsaied Moustafa Ahmed
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
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Petronek MS, Allen BG, Luthe G, Stolwijk JM. Polyoxometalate Nanoparticles as a Potential Glioblastoma Therapeutic via Lipid-Mediated Cell Death. Int J Mol Sci 2022; 23:ijms23158263. [PMID: 35897839 PMCID: PMC9332768 DOI: 10.3390/ijms23158263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 12/04/2022] Open
Abstract
Polyoxometalate nanoparticles (POMs) are a class of compounds made up of multiple transition metals linked together using oxygen atoms. POMs commonly include group 6 transition metals, with two of the most common forms using molybdenum and tungsten. POMs are suggested to exhibit antimicrobial effects. In this study, we developed two POM preparations to study anti-cancer activity. We found that Mo-POM (NH4)Mo7O24) and W-POM (H3PW12O40) have anti-cancer effects on glioblastoma cells. Both POMs induced morphological changes marked by membrane swelling and the presence of multinucleated cells that may indicate apoptosis induction along with impaired cell division. We also observed significant increases in lipid oxidation events, suggesting that POMs are redox-active and can catalyze detrimental oxidation events in glioblastoma cells. Here, we present preliminary indications that molybdenum polyoxometalate nanoparticles may act like ferrous iron to catalyze the oxidation of phospholipids. These preliminary results suggest that Mo-POMs (NH4)Mo7O24) and W-POMs (H3PW12O40) may warrant further investigation into their utility as adjunct cancer therapies.
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Affiliation(s)
- Michael S. Petronek
- Department of Radiation Oncology, Division of Free Radical and Radiation Biology, The University of Iowa, Iowa City, IA 52242-1181, USA
- Correspondence: (M.S.P.); (J.M.S.); Tel.: +1-(319)-356-8019 (M.S.P.)
| | - Bryan G. Allen
- Spheres4Life B.V., 7521 Enschede, The Netherlands; (B.G.A.); (G.L.)
| | - Gregor Luthe
- Spheres4Life B.V., 7521 Enschede, The Netherlands; (B.G.A.); (G.L.)
| | - Jeffrey M. Stolwijk
- Department of Radiation Oncology, Division of Free Radical and Radiation Biology, The University of Iowa, Iowa City, IA 52242-1181, USA
- Spheres4Life B.V., 7521 Enschede, The Netherlands; (B.G.A.); (G.L.)
- Correspondence: (M.S.P.); (J.M.S.); Tel.: +1-(319)-356-8019 (M.S.P.)
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Bai Y, Wang L, Zhao L, Lingling E, Yang S, Jia S, Wen N. Antibacterial and Antioxidant Effects of Magnesium Alloy on Titanium Dental Implants. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6537676. [PMID: 35035523 PMCID: PMC8758302 DOI: 10.1155/2022/6537676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/07/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVES In this study, a new type of dental implant by covering the surface of the titanium (Ti) implant with zinc-magnesium (Zn-Mg) alloy was designed, to study the antibacterial and antioxidant effects of Mg alloy on titanium (Ti) implants in oral implant restoration. METHODS Human gingival fibroblasts (HGFs), S. sanguinis, and F. nucleatum bacteria were used to detect the bioactivity and antibacterial properties of Mg alloy-coated Ti implants. In addition, B6/J mice implanted with different materials were used to further detect their antibacterial and antioxidant properties. RESULTS The results showed that Mg alloy could better promote the adhesion and proliferation and improve the alkaline phosphatase (ALP) activity of HGFs, which contributed to better improved stability of implant osseointegration. In addition, Mg alloy could better inhibit the proliferation of S. sanguinis, while no significant difference was found in the proliferation of F. nucleatum between the two implants. In the mouse model, the peripheral inflammatory reaction and oxidative stress of the Mg alloy implant were significantly lower than those of the Ti alloy implant. CONCLUSIONS Zn-Mg alloy-coated Ti implants could better inhibit the growth of Gram-positive bacteria in the oral cavity, inhibit oxidative stress, and facilitate the proliferation activity of HGFs and the potential of osteoblast differentiation, thus, better increasing the stability of implant osseointegration.
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Affiliation(s)
- Yang Bai
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Lin Wang
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Lisheng Zhao
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - E. Lingling
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Shuo Yang
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Shunyi Jia
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Ning Wen
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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Morais JBS, Severo JS, Santos LRD, de Sousa Melo SR, de Oliveira Santos R, de Oliveira ARS, Cruz KJC, do Nascimento Marreiro D. Role of Magnesium in Oxidative Stress in Individuals with Obesity. Biol Trace Elem Res 2017; 176:20-26. [PMID: 27444303 DOI: 10.1007/s12011-016-0793-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 06/30/2016] [Indexed: 12/24/2022]
Abstract
Adipose tissue is considered an endocrine organ that promotes excessive production of reactive oxygen species when in excess, thus contributing to lipid peroxidation. Magnesium deficiency contributes to the development of oxidative stress in obese individuals, as this mineral plays a role as an antioxidant, participates as a cofactor of several enzymes, maintains cell membrane stability and mitigates the effects of oxidative stress. The objective of this review is to bring together updated information on the participation of magnesium in the oxidative stress present in obesity. We conducted a search of articles published in the PubMed, SciELO and LILACS databases, using the keywords 'magnesium', 'oxidative stress', 'malondialdehyde', 'superoxide dismutase', 'glutathione peroxidase', 'reactive oxygen species', 'inflammation' and 'obesity'. The studies show that obese subjects have low serum concentrations of magnesium, as well as high concentrations of oxidative stress marker in these individuals. Furthermore, it is evident that the adequate intake of magnesium contributes to its appropriate homeostasis in the body. Thus, this review of current research can help define the need for intervention with supplementation of this mineral for the prevention and treatment of disorders associated with this chronic disease.
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Affiliation(s)
- Jennifer Beatriz Silva Morais
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Juliana Soares Severo
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Loanne Rocha Dos Santos
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Stéfany Rodrigues de Sousa Melo
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Raisa de Oliveira Santos
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Ana Raquel Soares de Oliveira
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Kyria Jayanne Clímaco Cruz
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil
| | - Dilina do Nascimento Marreiro
- Department of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Ininga, 665, Hugo Napoleão st., Ed. Palazzo Reale, Apt°. 2001, Jóquei, Teresina, Piauí, 64048-320, Brazil.
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de Sousa Rocha V, Della Rosa FB, Ruano R, Zugaib M, Colli C. Association between magnesium status, oxidative stress and inflammation in preeclampsia: A case-control study. Clin Nutr 2014; 34:1166-71. [PMID: 25559945 DOI: 10.1016/j.clnu.2014.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/02/2014] [Accepted: 12/01/2014] [Indexed: 01/27/2023]
Abstract
BACKGROUND & AIMS Preeclampsia is responsible for more than one-third of all maternal deaths in Brazil. The objectives of the present study were to evaluate magnesium status and its association with oxidative stress and inflammation in preeclamptic women, and to identify the predictor variables of the disorder. METHODS The study population consisted of 36 women divided into preeclamptic (n = 18) and control groups (n = 18). The preeclamptic group included women (≥20 weeks of pregnancy) with arterial pressure ≥ 140/90 mmHg and proteinuria >0.3 g/24 h, while the control group comprised pregnant women with no clinical/obstetric complications. Magnesium intake was assessed via a food frequency questionnaire validated for pregnant women in Brazil. Plasma, erythrocyte and urinary magnesium levels were determined by flame atomic absorption spectroscopy, while oxidative stress and inflammatory markers were assessed using standard protocols. Logistic regression analysis was used to identify the predictors of preeclampsia. RESULTS Preeclamptic and control groups were similar with respect to magnesium intake and urinary excretion, while plasma and erythrocyte magnesium concentrations were higher in the former group. Plasma magnesium was positively correlated with catalase and glutathione peroxidase activities and with concentrations of interleukin-6 and tumor necrosis factor alpha. Regression analysis showed that plasma magnesium and urinary 8-isoprostane were associated with preeclampsia. CONCLUSION Magnesium status appears to result from homeostatic imbalance and physiological alterations typical of preeclampsia. Increased plasma magnesium and decreased urinary 8-isoprostane were considered predictors of preeclampsia.
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Affiliation(s)
- Vivianne de Sousa Rocha
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Professor Lineu Prestes 580, Bloco 14, 05508-000 São Paulo, SP, Brazil
| | - Fernanda Brunacci Della Rosa
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Professor Lineu Prestes 580, Bloco 14, 05508-000 São Paulo, SP, Brazil
| | - Rodrigo Ruano
- Departamento de Obstetrícia, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo 455, Cerqueira César, 01246903 São Paulo, SP, Brazil; Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, USA
| | - Marcelo Zugaib
- Departamento de Obstetrícia, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo 455, Cerqueira César, 01246903 São Paulo, SP, Brazil
| | - Célia Colli
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Professor Lineu Prestes 580, Bloco 14, 05508-000 São Paulo, SP, Brazil.
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Scibior A, Zaporowska H. Effects of combined vanadate and magnesium treatment on erythrocyte antioxidant defence system in rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2010; 30:153-161. [PMID: 21787646 DOI: 10.1016/j.etap.2010.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Revised: 05/07/2010] [Accepted: 05/11/2010] [Indexed: 05/31/2023]
Abstract
The effect of vanadate and magnesium treatment on erythrocyte defence system was studied in outbred 2-month-old, albino male Wistar rats (14 rats/each group) which daily received: Group I (Control)-deionized water to drink; Group II-water solution of sodium metavanadate (NaVO(3); SMV) at a concentration of 0.125mgV/mL; Group III-water solution of magnesium sulfate (MgSO(4); MS) at a concentration of 0.06mgMg/mL, Group IV-water solution of SMV-MS at the same concentrations over a 12-week time. The fluid intake and the concentration of reduced glutathione (GSH) as well as the activity of Cu, Zn-superoxide dismutase (Cu, Zn-SOD), catalase (CAT) and glutathione reductase (GR) were significantly decreased in the rats receiving SMV alone (Group II) or in combination with MS (Group IV) compared with Groups I and III. The cellular glutathione peroxidase (cGSH-Px) activity was unchanged in all the treated groups. The activity of glutathione S-transferase (GST) fell in the animals in Group II, compared with the rats in Groups I, III and IV; whereas in the rats in Group III its activity was higher than in the control animals. These results showed that V (as SMV) consumed by the rats with drinking water at a dose of 12mgV/kg b.w./24h for 12 weeks may attenuate defence system in rats' erythrocytes (RBCs), which is probably a consequence of vanadium pro-oxidant potential. Therefore, reactive oxygen species (ROS) are suggested to be involved in the alterations in antioxidant defence system in these cells. Mg (as MS) at the dose ingested (6mgMg/kg b.w./24h) at co-exposure to SMV was not able to counteract its deleterious effect. The results also provide evidence that V-Mg interactions may be involved in the decrease of erythrocyte GR activity and Mg concentration in the plasma under concomitant treatment with both metals at the doses of 12.6mgV and 6mgMg/kg b.w./24h.
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Affiliation(s)
- Agnieszka Scibior
- Department of Cell Biology, Institute of Environmental Protection, John Paul II Catholic University of Lublin, Kraśnicka Ave 102, 20-718 Lublin, Poland
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Scibior A, Zaporowska H, Niedźwiecka I. Lipid peroxidation in the liver of rats treated with V and/or Mg in drinking water. J Appl Toxicol 2010; 29:619-28. [PMID: 19557770 DOI: 10.1002/jat.1450] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The effect of V(5+) and Mg treatment on spontaneous and stimulated lipid peroxidation (LPO) was studied in liver supernatants obtained from outbred 5-month-old, albino male Wistar rats. The 2-month-old animals daily received deionized water to drink (control, group I); group II - water solution of NaVO(3) (SMV) at a concentration of 0.125 mg V ml(-1); group III - water solution of MgSO(4) (MS) at a concentration of 0.06 mg Mg ml(-1), group IV - water solution of SMV-MS at the same concentrations as in groups II and III for V and Mg, respectively, over a 12-week period. Three metal salts were selected as agents that may modify the LPO process (FeSO(4), NaVO(3) and MgSO(4)). V-intoxicated rats and those treated with V and Mg in combination had higher liver spontaneous malondialdehyde (MDA) formation, compared with the control and Mg-supplemented animals. In the same groups of animals the total antioxidant status (TAS) was also significantly lowered, in comparison with the control. In the supernatants obtained from the above-mentioned groups of rats a significant increase in MDA concentration was found in the presence of exogenous 30 microm FeSO(4) as well as 30, 100, 200 and 400 microm NaVO(3), compared with groups I and III. Significantly elevated MDA production was also observed in the supernatants obtained from the rats exposed to V and Mg in combination in the presence of exogenous 100 and 200 microm MgSO(4) in comparison with the control and group III as well as in the presence of exogenous 400 and 600 microm MgSO(4) compared only with group III. In vitro treatment with 1000 microm MgSO(4 )of control liver supernatants and those obtained from group III significantly enhanced MDA level, compared with spontaneous MDA formation. The two-way ANOVA indicated that the changes in the basal MDA level and in TAS in the rats at combined V and Mg application, were not due to V-Mg interaction, but resulted from independent action of V. In addition, the three-way ANOVA revealed that the changes in LPO induced by in vitro treatment of liver supernatants with exogenous Fe or V or Mg (600, 800 and 1000 microm) were a consequence of independent action of those metals and they also resulted from the interactions between Fe(exog) and V(end) and between V(end) and V(exog). In conclusion, V consumed by the rats with drinking water at a dose of 12 mg V kg(-1) body weight per 24 h for 12 weeks decreased TAS and enhanced spontaneous LPO in the hepatic tissue, which confirms its pro-oxidant potential, was also found in in vitro conditions with regard to LPO. Mg administered to rats in combination with V, at the concentration used, neither reduced nor intensified the basal LPO, compared with V-only treated animals; however, its stimulating effect on LPO was revealed in in vitro conditions, which requires further study.
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Affiliation(s)
- Agnieszka Scibior
- Department of Cell Biology, Institute of Environmental Protection, John Paul II Catholic University of Lublin, Kraśnicka Ave 102, 20-718 Lublin, Poland.
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Sill JC, Proper JA, Johnson ME, Uhl CB, Katusic ZS. Reactive oxygen species and human platelet GP IIb/IIIa receptor activation. Platelets 2009; 18:613-9. [DOI: 10.1080/09537100701481385] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Aitken RJ, Wingate JK, De Iuliis GN, McLaughlin EA. Analysis of lipid peroxidation in human spermatozoa using BODIPY C11. Mol Hum Reprod 2007; 13:203-11. [PMID: 17327268 DOI: 10.1093/molehr/gal119] [Citation(s) in RCA: 139] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Lipid peroxidation is known to be a major factor in the aetiology of defective sperm function. Although biochemical assays for this process exist, they are relatively insensitive and require large numbers of spermatozoa; a condition that cannot be met with many infertility specimens. Recently, a new approach for monitoring peroxidative damage has been introduced, involving the probe BODIPY (581/591) C(11), which readily incorporates into cells and undergoes a spectral emission shift when attacked by reactive oxygen metabolites. We have examined the applicability of this probe as an indicator of oxidative stress in human sperm populations using flow cytometry as an end point. The measurement of peroxidation with BODIPY C(11) demonstrated significant dependence on the presence of a ferrous ion promoter (P < 0.001), which was significantly enhanced in sperm recovered from low-density Percoll fractions (P < 0.05) and was particularly damaging to the sperm midpiece. Iron-induced radical formation was suppressed by ascorbate in a dose-dependent manner (P < 0.001) and could only be promoted by Fe(II) and Cu(II); nickel, zinc and Fe(III) were ineffective. The Fe(II)-promoted BODIPY C(11) signal was significantly correlated with the measurement of reactive oxygen species generation with dihydroethidium. We conclude that BODIPY C(11) is an extremely useful probe for indexing peroxidative damage in human spermatozoa.
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Affiliation(s)
- R John Aitken
- ARC Centre of Excellence in Biotechnology and Development, Discipline of Biological Sciences, University of Newcastle, NSW, Australia.
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Scibior A, Zaporowska H, Ostrowski J. Selected haematological and biochemical parameters of blood in rats after subchronic administration of vanadium and/or magnesium in drinking water. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2006; 51:287-95. [PMID: 16783625 DOI: 10.1007/s00244-005-0126-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2005] [Accepted: 12/04/2005] [Indexed: 05/10/2023]
Abstract
The purpose of these studies was to evaluate the effect of selected vanadium and magnesium doses on certain haematological and biochemical blood parameters in rats. Outbred 2-month-old, albino male Wistar rats received for a period of 6 weeks, as a sole drinking liquid, the following water solutions: group II, sodium metavanadate (SMV) at a concentration of 0.125 mg V/mL; group III, magnesium sulphate (MS) at a concentration of 0.06 mg Mg/mL; and group IV, SMV-MS solution at the same concentrations. The control group received at this time deionized water to drink. It was calculated that group II ingested with drinking water about 10.7 mg V/kg b. w./24 h, group III 6 mg Mg/kg b. w./24 h, and group IV about 9 mg V and 4.5 mg Mg/kg b. w./24 h. The exposure to vanadium alone (group II) led to a statistically significant decrease in body weight gain, food and fluid intakes. Moreover, in the same group of rats a statistically significant decrease in the RBC count, Hb concentration, MCV, and MCH values was demonstrated. Additionally, a statistically significant decrease in the plasma L-ascorbic acid concentration and a significant increase in MDA concentration in blood in this group were found. Instead, after the administration of magnesium alone (group III), a statistically significant decrease in the fluid intake and in the L-ascorbic acid concentration in plasma was noted. Furthermore, in the same group of rats a statistically significant increase in Hb level and in the plasma magnesium concentration was demonstrated. Two-way analysis of variance (ANOVA) did not reveal the interactions between V and Mg.
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Affiliation(s)
- Agnieszka Scibior
- Department of Cell Biology, Institute of Environmental Protection, John Paul II Catholic University of Lublin, Kraśnicka Ave 102, 20-718, Lublin, Poland.
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Abad C, Teppa-Garrán A, Proverbio T, Piñero S, Proverbio F, Marín R. Effect of magnesium sulfate on the calcium-stimulated adenosine triphosphatase activity and lipid peroxidation of red blood cell membranes from preeclamptic women. Biochem Pharmacol 2005; 70:1634-41. [PMID: 16226223 DOI: 10.1016/j.bcp.2005.09.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2005] [Revised: 09/13/2005] [Accepted: 09/14/2005] [Indexed: 11/24/2022]
Abstract
The effect of the treatment with magnesium sulfate (MgSO(4)) on Ca-ATPase activity and level of lipid peroxidation of red blood cells from preeclamptic pregnant women was examined because it is known that these parameters are affected with preeclampsia. Red cell ghosts from 11 normotensive and 11 preeclamptic pregnant women, before and after treatment with MgSO(4), were assayed for Ca-ATPase activity and level of lipid peroxidation, determined as TBARS or conjugated dienes. It was found that the Ca-ATPase activity is significantly lower and the level of lipid peroxidation is significantly higher in the preeclamptic women with no treatment, as compared to normotensive pregnant women. Both parameters return to normal values after the MgSO(4) therapy. These results can be mimicked by in vitro preincubation with MgSO(4) of intact red blood cells from preeclamptic pregnant women, without any treatment. Our data indicate that MgSO(4) treatment of preeclamptic pregnant women modifies both the Ca-ATPase activity and the level of lipid peroxidation of their red blood cell membranes, reaching values similar to those of normotensive pregnant women. The diminution of the level of lipid peroxidation by MgSO(4), can account for the increase in Ca-ATPase activity.
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Affiliation(s)
- Cilia Abad
- Laboratorio de Bioenergética Celular, Centro de Biofísica y Bioquímica (CBB), Instituto Venezolano de Investigaciones Científicas (IVIC), A.P. 21827, Caracas 1020A, Venezuela
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Morrill GA, Kostellow A, Resnick LM, Gupta RK. Interaction between ferric ions, phospholipid hydroperoxides, and the lipid phosphate moiety at physiological pH. Lipids 2004; 39:881-9. [PMID: 15669764 DOI: 10.1007/s11745-004-1310-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iron-catalyzed lipid peroxidation was examined using 1H NMR in a biphasic aqueous-chloroform system. At physiological pH (7.4), mole ratios of phospholipids/Fe3+ as low as 1300:1 catalyzed the rapid disappearance of endogenous lipid hydroperoxides with a loss of two of the four double bonds in PC containing palmitic (16:0) and arachidonic (20:4) acids in the sn-1 and sn-2 positions, respectively. The predominant phospholipid products after 1 h at 20 degrees C were a 9-carbon mono-unsaturated carbonyl and a phospholipid with an 11-carbon delta5,8 FA in the sn-2 position. PC with linoleic acid (18:2) in the sn-2 position lost one double bond and formed a phospholipid with a 9-carbon FA. Cardiolipin (linoleic acid-rich) also lost about 40% of its double bonds. No detectable loss was seen for PC containing oleic acid (18:1) or neutral lipids with PUFA. At arachidonyl PC/Fe3+ ratios less than 20:1, significant broadening of the choline methyl proton peak was evident, indicating that Fe3+ may form a complex with the adjacent phosphate group and that the complex involves both the phosphate and the hydroperoxide adjacent to the delta11 double bond. The results demonstrate that, at physiological pH, Fe3+-catalyzed peroxidation in polyunsaturated phospholipids occurs selectively adjacent to specific double bonds (delta9 or delta11). These PC-derived products have been shown to activate components of the inflammatory system. This suggests that the episodic release of ferric ions may play a significant role in generating inflammatory mediators.
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Affiliation(s)
- Gene A Morrill
- Department of Physiology & Biophysics, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
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