1
|
Camp OG, Bembenek JN, Goud PT, Awonuga AO, Abu-Soud HM. The Implications of Insufficient Zinc on the Generation of Oxidative Stress Leading to Decreased Oocyte Quality. Reprod Sci 2023; 30:2069-2078. [PMID: 36920672 PMCID: PMC11047769 DOI: 10.1007/s43032-023-01212-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/07/2023] [Indexed: 03/16/2023]
Abstract
Zinc is a transition metal that displays wide physiological implications ranging from participation in hundreds of enzymes and proteins to normal growth and development. In the reproductive tract of both sexes, zinc maintains a functional role in spermatogenesis, ovulation, fertilization, normal pregnancy, fetal development, and parturition. In this work, we review evidence to date regarding the importance of zinc in oocyte maturation and development, with emphasis on the role of key zinc-binding proteins, as well as examine the effects of zinc and reactive oxygen species (ROS) on oocyte quality and female fertility. We summarize our current knowledge about the participation of zinc in the developing oocyte bound to zinc finger proteins as well as loosely bound zinc ion in the intracellular and extracellular environments. These include aspects related to (1) the impact of zinc deficiency and overwhelming production of ROS under inflammatory conditions on the offset of the physiological antioxidant machinery disturbing biomolecules, proteins, and cellular processes, and their role in contributing to further oxidative stress; (2) the role of ROS in modulating damage to proteins containing zinc, such as zinc finger proteins and nitric oxide synthases (NOS), and expelling the zinc resulting in loss of protein function; and (3) clarify the different role of oxidative stress and zinc deficiency in the pathophysiology of infertility diseases with special emphasis on endometriosis-associated infertility.
Collapse
Affiliation(s)
- Olivia G Camp
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Joshua N Bembenek
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Pravin T Goud
- Division of Reproductive Endocrinology and Infertility & California IVF Fertility Center, Department of Obstetrics and Gynecology, University of California Davis, Sacramento, CA, 95833, USA
- Laurel Fertility Care, San Francisco, CA, 94109, USA
- California Northstate University Medical College, Elk Grove, CA, 95757, USA
| | - Awoniyi O Awonuga
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Husam M Abu-Soud
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
- Department of Microbiology, Immunology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
| |
Collapse
|
2
|
Sravani AB, Ghate V, Lewis S. Human papillomavirus infection, cervical cancer and the less explored role of trace elements. Biol Trace Elem Res 2023; 201:1026-1050. [PMID: 35467267 PMCID: PMC9898429 DOI: 10.1007/s12011-022-03226-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/29/2022] [Indexed: 02/06/2023]
Abstract
Cervical cancer is an aggressive type of cancer affecting women worldwide. Many affected individuals rely on smear tests for the diagnosis, surgery, chemotherapy, or radiation for their treatment. However, due to a broad set of undesired results and side-effects associated with the existing protocols, the search for better diagnostic and therapeutic interventions is a never-ending pursuit. In the purview, the bio-concentration of trace elements (copper, selenium, zinc, iron, arsenic, manganese, and cadmium) is seen to fluctuate during the occurrence of cervical cancer and its progression from pre-cancerous to metastatic nature. Thus, during the occurrence of cervical cancer, the detection of trace elements and their supplementation will prove to be highly advantageous in developing diagnostic tools and therapeutics, respectively. This review provides a detailed overview of cervical cancer, its encouragement by human papillomavirus infections, the mechanism of pathology, and resistance. Majorly, the review emphasizes the less explored role of trace elements, their contribution to the growth and inhibition of cervical cancer. Numerous clinical trials have been listed, thereby providing a comprehensive reference to the exploration of trace elements in the management of cervical cancer.
Collapse
Affiliation(s)
- Anne Boyina Sravani
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Vivek Ghate
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Shaila Lewis
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
| |
Collapse
|
3
|
Fedala A, Adjroud O, Bennoune O, Abid-Essefi S, Foughalia A, Timoumi R. Nephroprotective Efficacy of Selenium and Zinc Against Potassium Dichromate-Induced Renal Toxicity in Pregnant Wistar Albino Rats. Biol Trace Elem Res 2022; 200:4782-4794. [PMID: 35066750 DOI: 10.1007/s12011-021-03069-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/14/2021] [Indexed: 02/01/2023]
Abstract
Hexavalent chromium (CrVI) compounds are potent toxicants commonly used in numerous industries. Thus, potential toxic effects and health hazards are of high relevance. Selenium (Se) and zinc (Zn) are known for their antioxidant and chemoprotective properties. However, little is known about their protective effects against CrVI-induced renal damage during pregnancy. In this context, the present study aimed to investigate the protective efficacy of these two essential elements against potassium dichromate-induced nephrotoxicity in pregnant Wistar Albino rats. Female rats were divided into control and four treated groups of six each receiving subcutaneously on the 3rd day of pregnancy, K2Cr2O7 (10 mg/kg, s.c. single dose) alone, or in association with Se (0.3 mg/kg, s.c. single dose), ZnCl2 (20 mg/kg, s.c. single dose) or both of them simultaneously. The nephrotoxic effects were monitored by the evaluation of plasma renal parameters, oxidative stress biomarkers, DNA damage, and renal Cr content. The obtained results showed that K2Cr2O7 disturbed renal biochemical markers, induced oxidative stress and DNA fragmentation in kidney tissues, and altered renal histoarchitecture. The co-administration of Se and/or ZnCl2 has exhibited pronounced chelative, antioxidant, and genoprotective effects against K2Cr2O7-induced renal damage and attenuated partially the histopathological alterations. These results suggest that Se and Zn can be used as efficient nephroprotective agents against K2Cr2O7-induced toxicity in pregnant Wistar Albino rats.
Collapse
Affiliation(s)
- Anfal Fedala
- Laboratory of Cellular and Molecular Physio-Toxicology-Pathology and Biomolecules, Faculty of Science of Nature and Life, Department of Biology of Organisms, University of Batna 2, 5000, Batna, Algeria.
| | - Ounassa Adjroud
- Laboratory of Cellular and Molecular Physio-Toxicology-Pathology and Biomolecules, Faculty of Science of Nature and Life, Department of Biology of Organisms, University of Batna 2, 5000, Batna, Algeria
| | - Omar Bennoune
- Institute of Veterinary and Agronomic Sciences, Laboratory of Environment, Health and Animal Production (LEHAP), University of Batna 1, Batna, Algeria
| | - Salwa Abid-Essefi
- Laboratory for Research On Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne, 5019, Monastir, Tunisia
| | - Abdelhamid Foughalia
- Scientific and Technical Research Center On Arid Regions (CRSTRA), University Campus Mohamed Khider, BP 1682 R.P, Biskra-07000, Biskra, Algeria
| | - Rim Timoumi
- Laboratory for Research On Biologically Compatible Compounds, Faculty of Dental Medicine, Rue Avicenne, 5019, Monastir, Tunisia
| |
Collapse
|
4
|
Ke K, Li L, Lu C, Zhu Q, Wang Y, Mou Y, Wang H, Jin W. The crosstalk effect between ferrous and other ions metabolism in ferroptosis for therapy of cancer. Front Oncol 2022; 12:916082. [PMID: 36033459 PMCID: PMC9413412 DOI: 10.3389/fonc.2022.916082] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/19/2022] [Indexed: 11/15/2022] Open
Abstract
Ferroptosis is an iron-dependent cell death process characterized by excessive accumulation of reactive oxygen species and lipid peroxidation. The elucidation of ferroptosis pathways may lead to novel cancer therapies. Current evidence suggests that the mechanism of ferroptosis can be summarized as oxidative stress and antioxidant defense mechanisms. During this process, ferrous ions play a crucial role in cellular oxidation, plasma membrane damage, reactive oxygen species removal imbalance and lipid peroxidation. Although, disregulation of intracellular cations (Fe2+, Ca2+, Zn2+, etc.) and anions (Cl-, etc.) have been widely reported to be involved in ferroptosis, their specific regulatory mechanisms have not been established. To further understand the crosstalk effect between ferrous and other ions in ferroptosis, we reviewed the ferroptosis process from the perspective of ions metabolism. In addition, the role of ferrous and other ions in tumor therapy is briefly summarized.
Collapse
Affiliation(s)
- Kun Ke
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Li Li
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Chao Lu
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Qicong Zhu
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Yuanyu Wang
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Yiping Mou
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Huiju Wang
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
- *Correspondence: Weiwei Jin, ; Huiju Wang,
| | - Weiwei Jin
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
- *Correspondence: Weiwei Jin, ; Huiju Wang,
| |
Collapse
|
5
|
Chouchene L, Kessabi K, Gueguen MM, Kah O, Pakdel F, Messaoudi I. Interference with zinc homeostasis and oxidative stress induction as probable mechanisms for cadmium-induced embryo-toxicity in zebrafish. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:39578-39592. [PMID: 35106724 DOI: 10.1007/s11356-022-18957-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
The present study was conducted to provide new insights into the mechanisms that may be responsible for cadmium (Cd)-induced toxicity in zebrafish larvae as well as the role of the trace element zinc (Zn) in reversing Cd harmful effects. For this purpose, zebrafish eggs were exposed to Cd or/and Zn for 96 h. The effects on morphological aspect; mortality rate; Cd, Zn, and metallothionein (MT) levels; oxidative stress biomarkers; as well as molecular expression of some genes involved in Zn metabolism (Zn-MT, ZIP10, and ZnT1) and in antioxidant defense system (Cu/Zn-SOD, CAT and GPx) were examined. Our results showed that Cd toxicity was exerted, initially, by an interference with Zn metabolism. Thus, Cd was able to modify the expression of the corresponding genes so as to ensure its intracellular accumulation at the expense of Zn, causing its depletion. An oxidative stress was then generated, representing the second mode of Cd action which resulted in developmental anomalies and subsequently mortality. Interestingly, significant corrections have been noted following Zn supplementation based, essentially, on its ability to interact with the toxic metal. The increases of Zn bioavailability, the improvement of the oxidative status, as well as changes in Zn transporter expression profile are part of the protection mechanisms. The decrease of Cd-induced MTs after Zn supplement, both at the protein and the mRNA level, suggests that the protection provided by Zn is ensured through mechanisms not involving MT expression but which rather depend on the oxidative status.
Collapse
Affiliation(s)
- Lina Chouchene
- Génétique, Biodiversité Et Valorisation Des Bioressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Rue Taher Haddad BP74, 5000, Monastir, Tunisia.
| | - Kaouthar Kessabi
- Génétique, Biodiversité Et Valorisation Des Bioressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Rue Taher Haddad BP74, 5000, Monastir, Tunisia
| | - Marie-Madeleine Gueguen
- Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail), Université de Rennes, UMR_S 1085, 35000, Rennes, France
| | - Olivier Kah
- Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail), Université de Rennes, UMR_S 1085, 35000, Rennes, France
| | - Farzad Pakdel
- Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement Et Travail), Université de Rennes, UMR_S 1085, 35000, Rennes, France
| | - Imed Messaoudi
- Génétique, Biodiversité Et Valorisation Des Bioressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Rue Taher Haddad BP74, 5000, Monastir, Tunisia
| |
Collapse
|
6
|
Cheng D, Li H, Hu S, Zhao T. Structural effects of zinc on phosphatidylserine-containing lipid membranes: kinetic analysis of membrane reorganization. NEW J CHEM 2022. [DOI: 10.1039/d2nj00515h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zinc induces reorganization of phosphatidylserine-containing lipid membranes.
Collapse
Affiliation(s)
- Danling Cheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China
| | - Hewen Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China
| | - Shipeng Hu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China
| | - Tao Zhao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China
| |
Collapse
|
7
|
Rajabi M, Torki M. Effect of dietary supplemental vitamin C and zinc sulfate on productive performance, egg quality traits and blood parameters of laying hens reared under cold stress condition. JOURNAL OF APPLIED ANIMAL RESEARCH 2021. [DOI: 10.1080/09712119.2021.1949999] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Maryam Rajabi
- Animal Science Department, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| | - Mehran Torki
- Animal Science Department, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran
| |
Collapse
|
8
|
Shilpashree B, Arora S, Kapila S, Sharma V. Whey protein-iron or zinc complexation decreases pro-oxidant activity of iron and increases iron and zinc bioavailability. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Cazarotto CJ, Boito JP, Glombowsky P, Baggio RA, Galli GM, Machado G, Bottari NB, Leal MLR, Kessler JD, Baldissera MD, da Silva AS. Nutraceutical Effect of Trace Elements as Additional Injectable Doses to Modulate Oxidant and Antioxidant Status, and Improves the Quality of Lamb Meat. Biol Trace Elem Res 2019; 191:115-125. [PMID: 30600498 DOI: 10.1007/s12011-018-1612-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/06/2018] [Indexed: 11/28/2022]
Abstract
Our study aimed to evaluate whether zinc, copper, selenium, and manganese subcutaneous mineral application (trace elements) reduced mortality, improved performance, and modulated oxidant and antioxidant balance in lamb meat, thereby improving its quality. We divided the 110 newborn Lacaune lambs into two groups: non-treated (control), and treated (application of minerals) with three doses of 0.33 mL/kg of body weight mineral complex on days of life 1, 30, and 60. All animals were weighed on day of life 1, 30, 60, 90, and 150. At the end of the experiment, 12 animals were slaughtered for physical and chemical analysis of meat, oxidant, and antioxidant status, and for allometric analysis. Mineral-application animals had greater live-weight (P < 0.05) on days of life 60 and 90. There was an increase in fat thickness (P = 0.004); pH levels (P = 0.002) were lower in mineral-application animal meat than in that of the control group. Meat was paler (according to lightness (L color)) in the control group (P = 0.04). Weight loss from cooking was greater in control animals (P = 0.004). Shear strength values were lower in the meat of treated lambs (P = 0.008) suggesting that mineral application was associated with increased meat tenderness. In addition, catalase and superoxide dismutase activities were higher (P = 0.01) in mineral-treated animals, associated with a reduction in reactive oxygen species levels (P < 0.01), and lipid peroxidation products (P = 0.02). These data suggest that mineral application modulated oxidant and antioxidant status, reflecting better meat quality.
Collapse
Affiliation(s)
- Chrystian J Cazarotto
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | - Jhonatan P Boito
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | - Patrícia Glombowsky
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | - Rafael A Baggio
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | - Gabriela M Galli
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | - Gustavo Machado
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, USA
| | - Nathieli B Bottari
- Graduate Program in Biochemical Toxicologicology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Marta L R Leal
- Department of Large Animal, UFSM, Santa Maria, RS, Brazil
| | - Julcemar D Kessler
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil
| | | | - Aleksandro S da Silva
- Graduate Program in Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, Santa Catarina (SC), Brazil.
- Graduate Program in Biochemical Toxicologicology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil.
- Department of Animal Science, University of Santa Catarina State, 680 D, Beloni Trombeta Zanin Street, Chapecó, SC, 89815-630, Brazil.
| |
Collapse
|
10
|
Sethi K, Rao K, Bolton D, Patel O, Ischia J. Targeting HIF-1 α to Prevent Renal Ischemia-Reperfusion Injury: Does It Work? Int J Cell Biol 2018; 2018:9852791. [PMID: 30595695 PMCID: PMC6286753 DOI: 10.1155/2018/9852791] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 11/14/2018] [Indexed: 12/26/2022] Open
Abstract
Partial nephrectomy (open or minimally invasive) usually requires temporary renal arterial occlusion to limit intraoperative bleeding and improve access to intrarenal structures. This is a time-critical step due to the critical ischemia period of renal tissue. Prolonged renal ischemia may lead to irreversible nephron damage in the remaining tissue and, ultimately, chronic kidney disease. This is potentiated by the incompletely understood ischemia-reperfusion injury (IRI). A key mechanism in IRI prevention appears to be the upregulation of an intracellular transcription protein, Hypoxia-Inducible Factor (HIF). HIF mediates metabolic adaptation, angiogenesis, erythropoiesis, cell growth, survival, and apoptosis. Upregulating HIF-1α via ischemic preconditioning (IPC) or drugs that simulate hypoxia (hypoxia-mimetics) has been investigated as a method to reduce IRI. While many promising chemical agents have been trialed for the prevention of IRI in small animal studies, all have failed in human trials. The aim of this review is to highlight the techniques and drugs that target HIF-1α and ameliorate IRI associated with renal ischemia. Developing a technique or drug that could reduce the risk of acute kidney injury associated with renal IRI would have an immediate worldwide impact on multisystem surgeries that would otherwise risk ischemic tissue injury.
Collapse
Affiliation(s)
- Kapil Sethi
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
- Urology Unit, Austin Health, Heidelberg, VIC, Australia
| | - Kenny Rao
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
- Urology Unit, Austin Health, Heidelberg, VIC, Australia
| | - Damien Bolton
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
- Urology Unit, Austin Health, Heidelberg, VIC, Australia
| | - Oneel Patel
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
| | - Joseph Ischia
- Department of Surgery, Austin Health, University of Melbourne, Heidelberg, VIC, Australia
- Urology Unit, Austin Health, Heidelberg, VIC, Australia
| |
Collapse
|
11
|
Ozyıldırım S, Baltaci AK, Sahna E, Mogulkoc R. Effects of Chronic and Acute Zinc Supplementation on Myocardial Ischemia-Reperfusion Injury in Rats. Biol Trace Elem Res 2017; 178:64-70. [PMID: 27909864 DOI: 10.1007/s12011-016-0903-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 11/22/2016] [Indexed: 10/20/2022]
Abstract
The present study aims to explore the effects of chronic and acute zinc sulfate supplementation on myocardial ischemia-reperfusion injury in rats. The study registered 50 adult male rats which were divided into five groups in equal numbers as follows: group 1, normal control; group 2, sham; group 3, myocardial ischemia reperfusion (My/IR): the group which was fed on a normal diet and in which myocardial I/R was induced; group 4, myocardial ischemia reperfusion + chronic zinc: (5 mg/kg i.p. zinc sulfate for 15 days); and group 5, myocardial ischemia reperfusion + acute zinc: the group which was administered 15 mg/kg i.p. zinc sulfate an hour before the operation and in which myocardial I/R was induced. The collected blood and cardiac tissue samples were analyzed using spectrophotometric method to determine levels of MDA, as an indicator of tissue injury, and GSH, as an indicator of antioxidant activity. The highest plasma and heart tissue MDA levels were measured in group 3 (p < 0.05). Group 5 had lower MDA values than group 3, while group 4 had significantly lower MDA values than groups 3 and 5 (p < 0.05). The highest erythrocyte GSH values were found in group 4 (p < 0.05). Erythrocyte GSH values in group 5 were higher than those in group 3 (p < 0.05). The highest GSH values in heart tissue were measured in group 4 (p < 0.05). The results of the study reveal that the antioxidant activity inhibited by elevated oxidative stress in heart ischemia reperfusion in rats is restored partially by acute zinc administration and markedly by chronic zinc supplementation.
Collapse
Affiliation(s)
| | | | - Engin Sahna
- Medical Faculty, Department of Pharmacology, Firat University, Elazıg, Turkey
| | - Rasim Mogulkoc
- Medical Faculty, Department of Physiology, Selcuk University, 42031, Konya, Turkey
| |
Collapse
|
12
|
Alsop RJ, Maria Schober R, Rheinstädter MC. Swelling of phospholipid membranes by divalent metal ions depends on the location of the ions in the bilayers. SOFT MATTER 2016; 12:6737-6748. [PMID: 27453289 DOI: 10.1039/c6sm00695g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The Hofmeister series illustrates how salts produce a wide range of effects in biological systems, which are not exclusively explained by ion charge. In lipid membranes, charged ions have been shown to bind to lipids and either hydrate or dehydrate lipid head groups, and also to swell the water layer in multi-lamellar systems. Typically, Hofmeister phenomena are explained by the interaction of the ions with water, as well as with biological interfaces, such as proteins or membranes. We studied the effect of the divalent cations Mg(2+), Ca(2+), Fe(2+), and Zn(2+) on oriented, stacked, phospholipid bilayers made of dimyristoylphosphatidylcholine (DMPC). Using high-resolution X-ray diffraction, we observed that the cations lead to a swelling of the water layer between the bilayers, without causing significant changes to the bilayer structure. The cations swelled the bilayers in different amounts, in the order Fe(2+) > Mg(2+) > Ca(2+) > Zn(2+). By decomposing the total bilayer electron density into different molecular groups, Zn(2+) and Ca(2+) were found to interact with the glycerol groups of the lipid molecules and cause minor swelling of the bilayers. Mg(2+) and Fe(2+) were found to position near the phosphate groups and cause a strong increase in the number of hydration water molecules. Our results present a molecular mechanism-of-action for the Hofmeister series in phospholipid membranes.
Collapse
Affiliation(s)
- Richard J Alsop
- Department of Physics and Astronomy, McMaster University, ABB-241, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada.
| | - Rafaëla Maria Schober
- Department of Physics and Astronomy, McMaster University, ABB-241, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada.
| | - Maikel C Rheinstädter
- Department of Physics and Astronomy, McMaster University, ABB-241, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada.
| |
Collapse
|
13
|
Chemek M, Boughammoura S, Mimouna SB, Chouchene L, Banni M, Messaoudi I. Changes of the mRNA expression pattern of Zn transporters: a probable mechanism for cadmium retention and zinc redistribution in the suckling rat tissues. Biol Trace Elem Res 2015; 165:173-82. [PMID: 25653005 DOI: 10.1007/s12011-015-0255-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/25/2015] [Indexed: 12/27/2022]
Abstract
The present study was conducted to provide potential mechanism that may be responsible for Cd retention and Cd-induced Zn redistribution in tissues of suckling rat. For this purpose, suckling rats from mother receiving either tap water, Cd, or Cd + Zn during lactation period were sacrificed on postnatal day (PND) 14 and PND 21 for performing chemical and molecular analysis. Our results show that Cd exposure, although it does not affect the milk consumption, it clearly alters the lactational transfer, absorption, and distribution of Zn in the suckling rat organism. At the molecular level, Cd caused upregulation of ZIP 3, ZIP 4, and ZIP 8 gene expressions in the mammary gland of mothers rats and in the intestine of their pups but decreased the expression of ZnT 2 and ZnT 4 only in the mammary tissue at PND 14 and PND 21. Zn supply reversed the Cd-induced decrease in the neonatal Zn apparent absorption and restores the gastrointestinal, brain, and plasma levels of this essential element in the suckling rat organism at PND 14 and PND 21. Also, with this treatment, the gene expressions of ZnT 1 in the mammary gland and ZnT 4 in the neonatal intestine were found to be upregulated at PND 21. Furthermore, our results show that Cd or Cd + Zn treatment increase the neonatal hepatic MTs accumulation at PND 14 only. These results imply that the downregulation of ZnT as well as the overexpression of ZIP transporters, in responses to the Zn depletion induced by Cd in the tissues of lactating rat and their offspring, play a major role in Cd accumulation and Zn redistribution in tissues of suckling rat.
Collapse
Affiliation(s)
- Marouane Chemek
- LR11ES41: Génétique, Biodiversité et Valorisation des Bioressources, Institut de Biotechnologie, 5000, Monastir, Tunisia
| | | | | | | | | | | |
Collapse
|
14
|
Kloubert V, Rink L. Zinc as a micronutrient and its preventive role of oxidative damage in cells. Food Funct 2015; 6:3195-204. [DOI: 10.1039/c5fo00630a] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Zinc deficiency leads to increased ROS production, thereby causing lipid peroxidation. Subsequently, signallingviathe NF-κB pathway is increased, resulting in the expression of pro-inflammatory cytokines which in turn cause chronic inflammatory diseases.
Collapse
Affiliation(s)
- Veronika Kloubert
- Institute of Immunology
- Medical Faculty
- RWTH Aachen University
- 52074 Aachen
- Germany
| | - Lothar Rink
- Institute of Immunology
- Medical Faculty
- RWTH Aachen University
- 52074 Aachen
- Germany
| |
Collapse
|
15
|
Harmaza YM, Slobozhanina EI. Zinc essentiality and toxicity. Biophysical aspects. Biophysics (Nagoya-shi) 2014. [DOI: 10.1134/s0006350914020092] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
16
|
Özaslan M, Kılıç I, Aytekin T, Güldür M, Bozkurt A. Investigation of Antioxidant Effect of Zinc Biochemically and Histopathologically in Rats. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.1080/13102818.2005.10817205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
17
|
Mao L, Chen J, Peng Q, Zhou A, Wang Z. Effects of different sources and levels of zinc on H2O2-induced apoptosis in IEC-6 cells. Biol Trace Elem Res 2013; 155:132-41. [PMID: 23912254 DOI: 10.1007/s12011-013-9759-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 07/09/2013] [Indexed: 12/14/2022]
Abstract
Zinc has been shown to be an inhibitor of apoptosis for many years. The present study was designed to investigate effects of three zinc chemical forms on H2O2-induced cell apoptosis in IEC-6 cells via analysis of cell vitality, LDH activity, apoptosis percentage, caspase-3 activity, and Bcl-2, Bax, and caspase-3, -8, and -9 gene expression. Cells were divided into H2O2 and zinc sources+H2O2 groups, and there are three different zinc sources [zinc oxide nanoparticle (nano-ZnO), zinc oxide (ZnO), and zinc sulfate (ZnSO4)] and three concentrations (normal = 25 μM, medium = 50 μM, and high = 100 μM) used in this article. In the present study, we found the striking cytotoxicity of H2O2 higher than 200 μM on cell vitality, LDH activity, and apoptosis percentage in the cells using five different concentrations (50, 100, 200, 400, and 800 μM) of H2O2 for 4 h. Moreover, we observed that cell vitality was increased, LDH activity and apoptotic percentage were decreased, and gene expression level of Bax and caspase-3 and -9 was markedly reduced, while gene expression level of Bcl-2 and ratio of Bcl-2/Bax were increased in normal concentration groups of nano-ZnO and ZnSO4 compared with H2O2 group, but no significant difference was observed in caspase-8 gene expression. Furthermore, medium or, more intensely, high concentrations of nano-ZnO and ZnSO4 enhanced H2O2-induced cell apoptosis. Compared with nano-ZnO and ZnSO4, ZnO showed weakest protective effect on H2O2-induced apoptosis at normal concentration and was less toxic to cells at high level. Taken together, we proposed that preventive and protective effects of zinc on H2O2-induced cell apoptosis varied in IEC-6 cells with its chemical forms and concentrations, and maybe for the first time, we suggested that nano-ZnO have a protective effect on H2O2-induced cell apoptosis in IEC-6 cells.
Collapse
Affiliation(s)
- Lei Mao
- Institute of Animal Nutrition, Key Laboratory of Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Ya' an, People's Republic of China
| | | | | | | | | |
Collapse
|
18
|
Decleva E, Menegazzi R, Fasolo A, Defendi F, Sebastianutto M, Dri P. Intracellular shunting of O2(-) contributes to charge compensation and preservation of neutrophil respiratory burst in the absence of voltage-gated proton channel activity. Exp Cell Res 2013; 319:1875-1888. [PMID: 23578765 PMCID: PMC3712189 DOI: 10.1016/j.yexcr.2013.03.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/28/2013] [Accepted: 03/29/2013] [Indexed: 11/19/2022]
Abstract
Proton efflux via voltage-gated proton channels (Hv1) is considered to mediate the charge compensation necessary to preserve NADPH oxidase activity during the respiratory burst. Using the Hv1 inhibitor Zn2+, we found that the PMA-induced respiratory burst of human neutrophils is inhibited when assessed as extracellular production of O2− and H2O2, in accordance with literature studies, but, surprisingly, unaffected when measured as oxygen consumption or total (extracellular plus intracellular) H2O2 production. Furthermore, we show that inhibiting Hv1 with Zn2+ results in an increased production of intracellular ROS. Similar results, i.e. decreased extracellular and increased intracellular ROS production, were obtained using a human granulocyte-like cell line with severely impaired Hv1 expression. Acidic extracellular pH, which dampens proton efflux, also augmented intracellular production of H2O2. Zinc caused an increase in the rate but not in the extent of depolarization and cytosolic acidification indicating that mechanisms other than proton efflux take part in charge compensation. Our results suggest a hitherto unpredicted mechanism of charge compensation whereby, in the absence of proton efflux, part of O2− generated within gp91phox in the plasma membrane is shunted intracellularly down electrochemical gradient to dampen excessive depolarization. This would preserve NADPH oxidase activity under conditions such as the inflammatory exudate in which the acidic pH hinders charge compensation by proton efflux. Neutrophils’ respiratory burst is not inhibited by the H+ channel inhibitor Zn2+. Intracellular production of O2− and H2O2 is increased in the presence of Zn2+. Intracellular H2O2 production is increased in H+ channels knock-down cells. Zn2+ increases the rate but not the extent of depolarization and pHi decrease. Intracellular shunting of O2− contributes to charge compensation in neutrophils.
Collapse
Affiliation(s)
- Eva Decleva
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Renzo Menegazzi
- Department of Life Sciences, University of Trieste, Trieste, Italy.
| | - Alba Fasolo
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Federica Defendi
- Université Joseph Fourier, GREPI/AGIM CNRS FRE 3405, Grenoble, France
| | | | - Pietro Dri
- Department of Life Sciences, University of Trieste, Trieste, Italy
| |
Collapse
|
19
|
Kahraman O, Ustunol Z. Effect of zinc fortification on Cheddar cheese quality. J Dairy Sci 2012; 95:2840-7. [DOI: 10.3168/jds.2011-4945] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 02/05/2012] [Indexed: 11/19/2022]
|
20
|
Influence of cow or goat milk consumption on antioxidant defence and lipid peroxidation during chronic iron repletion. Br J Nutr 2011; 108:1-8. [DOI: 10.1017/s0007114511005204] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Despite Fe deficiency and overload having been widely studied, no studies are available about the influence of milk consumption on antioxidant defence and lipid peroxidation during the course of these highly prevalent cases. The objective of the present study was to assess the influence of cow or goat milk-based diets, either with normal or Fe-overload, on antioxidant defence and lipid peroxidation in the liver, brain and erythrocytes of control and anaemic rats after chronic Fe repletion. Weanling male rats were randomly divided into two groups: a control group receiving a normal-Fe diet (45 mg/kg) and an anaemic group receiving a low-Fe diet (5 mg/kg) for 40 d. Control and anaemic rats were fed goat or cow milk-based diets, either with normal Fe or Fe-overload (450 mg/kg), for 30 or 50 d. Fe-deficiency anaemia did not have any effect on antioxidant enzymes or lipid peroxidation in the organs studied. During chronic Fe repletion, superoxide dismutase (SOD) activity was higher in the group of animals fed the cow milk diet compared with the group consuming goat milk. The slight modification of catalase and glutathione peroxidise activities in animals fed the cow milk-based diet reveals that these enzymes are unable to neutralise and scavenge the high generation of free radicals produced. The animals fed the cow milk diet showed higher rates of lipid peroxidation compared with those receiving the goat milk diet, which directly correlated with the increase in SOD activity. It was concluded that goat milk has positive effects on antioxidant defence, even in a situation of Fe overload, limiting lipid peroxidation.
Collapse
|
21
|
Leigh M, Raines DJ, Castillo CE, Duhme-Klair AK. Inhibition of Xanthine Oxidase by Thiosemicarbazones, Hydrazones and Dithiocarbazates Derived from Hydroxy-Substituted Benzaldehydes. ChemMedChem 2011; 6:1107-18. [DOI: 10.1002/cmdc.201100054] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Indexed: 11/08/2022]
|
22
|
Farrell H, Hayes J, Laffey J, Rowan N. Studies on the relationship between pulsed UV light irradiation and the simultaneous occurrence of molecular and cellular damage in clinically-relevant Candida albicans. J Microbiol Methods 2011; 84:317-26. [DOI: 10.1016/j.mimet.2010.12.021] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 12/15/2010] [Accepted: 12/15/2010] [Indexed: 11/26/2022]
|
23
|
Saïd L, Banni M, Kerkeni A, Saïd K, Messaoudi I. Influence of combined treatment with zinc and selenium on cadmium induced testicular pathophysiology in rat. Food Chem Toxicol 2010; 48:2759-65. [DOI: 10.1016/j.fct.2010.07.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 07/02/2010] [Accepted: 07/05/2010] [Indexed: 01/14/2023]
|
24
|
Díaz-Castro J, Hijano S, Alférez M, López-Aliaga I, Nestares T, López-Frías M, Campos M. Goat milk consumption protects DNA against damage induced by chronic iron overload in anaemic rats. Int Dairy J 2010. [DOI: 10.1016/j.idairyj.2010.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
25
|
Messaoudi I, Hammouda F, El Heni J, Baati T, Saïd K, Kerkeni A. Reversal of cadmium-induced oxidative stress in rat erythrocytes by selenium, zinc or their combination. ACTA ACUST UNITED AC 2010; 62:281-8. [DOI: 10.1016/j.etp.2009.04.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2009] [Revised: 03/31/2009] [Accepted: 04/18/2009] [Indexed: 10/20/2022]
|
26
|
Upadhyay AK, Mathur R, Bhadauria M, Nirala SK. Therapeutic influence of zinc and ascorbic acid against lead induced biochemical alterations. Therapie 2009; 64:383-8. [PMID: 20025841 DOI: 10.2515/therapie/2009055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2009] [Indexed: 11/20/2022]
Abstract
The influence of co-administration of zinc (10 mg/kg, intraperitoneal [ip]) and ascorbic acid (10, 20 and 30 mg/kg, ip) against lead (lead acetate; 35 mg/kg, ip for 3 days) induced biochemical alterations was studied in young albino rats. The results revealed significant fall in hemoglobin content, on the other hand significant raise in the activity of serum transaminases and serum alkaline phosphatase after lead administration. Significant increase in lipid peroxidation and decreased level of reduced glutathione in liver showed oxidative stress due to lead exposure. Total protein content in liver and kidney were diminished after lead exposure. Activity of acid phosphatase in liver and kidney and alkaline phosphatase in kidney was increased significantly. Zinc and ascorbic acid treatment showed moderate therapeutic efficacy when administered individually, whereas more pronounced protective effects were observed after combined therapy of zinc and different doses of ascorbic acid. The results thus, suggested that co-administration of zinc and ascorbic acid may be useful in restoration of lead induced biochemical alterations.
Collapse
|
27
|
Messaoudi I, El Heni J, Hammouda F, Saïd K, Kerkeni A. Protective effects of selenium, zinc, or their combination on cadmium-induced oxidative stress in rat kidney. Biol Trace Elem Res 2009; 130:152-61. [PMID: 19214400 DOI: 10.1007/s12011-009-8324-y] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Accepted: 01/13/2009] [Indexed: 10/21/2022]
Abstract
The present study was conducted to investigate whether the combined treatment with Se and Zn offers more beneficial effects than that provided by either of them alone in reversing Cd-induced oxidative stress in the kidney of rat. For this purpose, 30 adult male Wistar albino rats, equally divided into control and four treated groups, received either 200 ppm Cd (as CdCl(2)), 200 ppm Cd + 500 ppm Zn (as ZnCl(2)), 200 ppm Cd + 0.1 ppm Se (as Na(2)SeO(3)), or 200 ppm Cd + 500 ppm Zn + 0.1 ppm Se in their drinking water for 35 days. The results showed that Cd treatment decreased significantly the catalase (CAT) and glutathione peroxidase (GSH-Px) activities, whereas the superoxide dismutase (SOD) activity and the renal levels of lipid peroxidation (as malondialdehyde, MDA) were increased compared to control rats. The treatment of Cd-exposed rats with Se alone had no significant effect on the Cd-induced increase in the MDA concentrations but increased significantly the CAT activities and reversed Cd-induced increase in SOD activity. It also partially prevented Cd-induced decrease in GSH-Px activity. The treatment of Cd-exposed animals with Zn alone increased significantly the CAT activity and partially protected against Cd-induced increase in the MDA concentrations, whereas it had no significant effect on the Cd-induced increase in SOD activity and decrease in GSH-Px activity. The combined treatment of Cd-exposed animals with Se and Zn was more effective than that with either of them alone in reversing Cd-induced decrease in CAT and GSH-Px activities and Cd-induced increase in MDA concentrations. Results demonstrated beneficial effects of combined Se and Zn treatment in Cd-induced oxidative stress in kidney and suggest that Se and Zn can have a synergistic role against Cd toxicity.
Collapse
Affiliation(s)
- Imed Messaoudi
- UR 09/30: Génétique, Biodiversité et Valorisation des Bioressources, Institut de Biotechnologie, Monastir, Tunisia.
| | | | | | | | | |
Collapse
|
28
|
de Oliveira KDJF, Donangelo CM, de Oliveira AV, da Silveira CLP, Koury JC. Effect of zinc supplementation on the antioxidant, copper, and iron status of physically active adolescents. Cell Biochem Funct 2009; 27:162-6. [DOI: 10.1002/cbf.1550] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
29
|
Oxaloacetate decreases the infarct size and attenuates the reduction in evoked responses after photothrombotic focal ischemia in the rat cortex. Cell Mol Neurobiol 2009; 29:827-35. [PMID: 19259807 DOI: 10.1007/s10571-009-9364-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2008] [Accepted: 02/10/2009] [Indexed: 01/10/2023]
Abstract
A traumatic brain injury or a focal brain lesion is followed by acute excitotoxicity caused by the presence of abnormally high glutamate (Glu) levels in the cerebrospinal and interstitial fluids. It has recently been demonstrated that this excess Glu in the brain can be eliminated into the blood following the intravenous administration of oxaloacetate (OxAc), which, by scavenging the blood Glu, induces an enhanced and neuroprotective brain-to-blood Glu efflux. In this study, we subjected rats to a photothrombotic lesion and treated them after the illumination with a single 30-min-long administration of OxAc (1.2 mg/100 g, i.v.). Following induction of the lesion, we measured the infarct size and the amplitudes of the somatosensory evoked potentials (SEPs) as recorded from the skull surface. The photothrombotic lesion resulted in appreciably decreased amplitudes of the evoked potentials, but OxAc administration significantly attenuated this reduction, and also the infarct size assessed histologically. We suggest that the neuroprotective effects of OxAc are due to its blood Glu-scavenging activity, which, by increasing the brain-to-blood Glu efflux, reduces the excess Glu responsible for the anatomical and functional correlates of the ischemia, as evaluated by electrophysiological evoked potential (EP) measurements.
Collapse
|
30
|
Aravind P, Prasad MNV, Malec P, Waloszek A, Strzałka K. Zinc protects Ceratophyllum demersum L. (free-floating hydrophyte) against reactive oxygen species induced by cadmium. J Trace Elem Med Biol 2009; 23:50-60. [PMID: 19203717 DOI: 10.1016/j.jtemb.2008.10.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2007] [Revised: 10/14/2008] [Accepted: 10/29/2008] [Indexed: 10/21/2022]
Abstract
Evidence for Zn protection against Cd-induced reactive oxygen species in the free-floating hydrophyte Ceratophyllum demersum L. is presented in this paper. Metal treatments of 10 micromol/L Cd, 10 Cd micromol/L supplemented with Zn (10, 50, 100 and 200 micromol/L) and Zn-alone treatments of the same concentrations were used. Using 5,5 dimethyl pyrroline-N-oxide as the spin-probe, electron spin resonance spectra indicated a drastic increase in hydroxyl radicals (OH()) in Cd-10 micromol/L treatments, which was closely correlating with the enhanced formation of hydrogen peroxide (H(2)O(2)) and generation of superoxide radical (O(2)(-)) triggered by the oxidation of NADPH. The supplementation of adding Zn (10-200 micromol/L) to the Cd-10 micromol/L treatments significantly decreased the production of free radicals especially by eliminating the precursors of OH() through inhibition of NADPH oxidation. Cd-enhanced ROS production which substantially increased the oxidative products of proteins measured as carbonyls was effectively inhibited by Zn supplementation.
Collapse
Affiliation(s)
- P Aravind
- Department of Plant Sciences, University of Hyderabad, Hyderabad 500046, India
| | | | | | | | | |
Collapse
|
31
|
Helal GK. SYSTEMIC ADMINISTRATION OF Zn2+DURING THE REPERFUSION PHASE OF TRANSIENT CEREBRAL ISCHAEMIA PROTECTS RAT HIPPOCAMPUS AGAINST IRON-CATALYSED POSTISCHAEMIC INJURY. Clin Exp Pharmacol Physiol 2008; 35:775-81. [DOI: 10.1111/j.1440-1681.2007.04858.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
32
|
Stadler N, Stanley N, Heeneman S, Vacata V, Daemen MJ, Bannon PG, Waltenberger J, Davies MJ. Accumulation of Zinc in Human Atherosclerotic Lesions Correlates With Calcium Levels But Does Not Protect Against Protein Oxidation. Arterioscler Thromb Vasc Biol 2008; 28:1024-30. [DOI: 10.1161/atvbaha.108.162735] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective—
Oxidized lipids and proteins, as well as decreased antioxidant levels, have been detected in human atherosclerotic lesions, with oxidation catalyzed by iron and copper postulated to contribute to lesion development. Zinc has been postulated to displace iron from critical sites and thereby protect against damage. In this study, metal ion and protein oxidation levels were quantified in human carotid and abdominal artery specimens containing early-to-advanced lesions, to determine whether zinc concentrations correlate inversely with iron levels and protein oxidation.
Methods and Results—
Metal ions were quantified by EPR and inductively coupled plasma mass spectroscopy. Native and oxidized protein side-chains were quantified by high-performance liquid chromatography. Elevated levels of zinc (≈6-fold) were detected in advanced lesions compared to healthy tissue or early lesions. Zinc did not correlate negatively with iron or copper levels suggesting that zinc does not displace these metal ions. Highly significant positive correlations (
P
<0.005) were detected between zinc and calcium levels.
Conclusions—
Zinc did not correlate with low iron levels and reduced protein oxidation. These data indicate that zinc does not prevent protein oxidation in advanced lesions. The reported protective effect of zinc accumulation is proposed to be associated with lesion calcification.
Collapse
Affiliation(s)
- Nadina Stadler
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Naomi Stanley
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Sylvia Heeneman
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Vladimir Vacata
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Mat J.A.P. Daemen
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Paul G. Bannon
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Johannes Waltenberger
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| | - Michael J. Davies
- From the Heart Research Institute (N. Stadler, N. Stanley, M.J.D.), Sydney, Australia; the Cardiovascular Research Institute Maastricht (CARIM) (N. Stadler, S.H., M.J.A.P.D., J.W.), Maastricht, The Netherlands; Gemeinschaftspraxis für Laboratoriumsmedizin (V.V.), Leverkusen, Germany; and the Baird Institute for Heart and Lung Surgical Research (P.G.B.), Sydney, Australia
| |
Collapse
|
33
|
Qin Z, Reszka KJ, Fukai T, Weintraub NL. Extracellular superoxide dismutase (ecSOD) in vascular biology: an update on exogenous gene transfer and endogenous regulators of ecSOD. Transl Res 2008; 151:68-78. [PMID: 18201674 PMCID: PMC4230486 DOI: 10.1016/j.trsl.2007.10.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2007] [Revised: 10/10/2007] [Accepted: 10/11/2007] [Indexed: 12/29/2022]
Abstract
Extracellular superoxide dismutase (ecSOD) is the major extracellular scavenger of superoxide (O(2)(.-)) and a main regulator of nitric oxide (NO) bioactivity in the blood vessel wall, heart, lungs, kidney, and placenta. Involvement of O(2)(.-) has been implicated in many pathological processes, and removal of extracellular O(2)(.-) by ecSOD gene transfer has emerged as a promising experimental technique to treat vascular disorders associated with increased oxidant stress. In addition, recent studies have clarified mechanisms that regulate ecSOD expression, tissue binding, and activity, and they have provided new insight into how ecSOD interacts with other factors that regulate vascular function. Finally, studies of a common gene variant in humans associated with disruption of ecSOD tissue binding suggest that displacement of the enzyme from the blood vessel wall may contribute to vascular diseases. The purpose of this review is to summarize recent research findings related to ecSOD function and gene transfer and to stimulate other investigations into the role of this unique antioxidant enzyme in vascular pathophysiology and therapeutics.
Collapse
Affiliation(s)
- Zhenyu Qin
- Division of Cardiovascular Disease, College of Medicine, University of Cincinnati, Cincinnati, Ohio 45267, USA.
| | | | | | | |
Collapse
|
34
|
Sortino S, Condorelli G, De Guidi G, Giuffrida S. Molecular Mechanism of Photosensitization XI. Membrane Damage and DNA Cleavage Photoinduced by Enoxacin. Photochem Photobiol 2008. [DOI: 10.1111/j.1751-1097.1998.tb02525.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
35
|
Hammouda F, Messaoudi I, El Hani J, Baati T, Saïd K, Kerkeni A. Reversal of cadmium-induced thyroid dysfunction by selenium, zinc, or their combination in rat. Biol Trace Elem Res 2008; 126:194-203. [PMID: 18685812 DOI: 10.1007/s12011-008-8194-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Accepted: 07/02/2008] [Indexed: 10/21/2022]
Abstract
The aim of this study was to evaluate the potential benefit of combined treatment with zinc (Zn) and selenium (Se) in reversing cadmium (Cd)-induced thyroid dysfunction compared to Se or Zn treatment alone in rats exposed to Cd. For this purpose, 30 adult male Wistar albino rats were equally divided into control and four treated groups receiving either 200 ppm Cd (as CdCl2), 200 ppm Cd + 500 ppm Zn (as ZnCl2), 200 ppm Cd + 0.1 ppm Se (as Na2SeO3), or 200 ppm Cd + 500 ppm Zn + 0.1 ppm Se in their drinking water for 35 days. The results showed that Cd exposure increased significantly the relative thyroid weight (RTW), the thyroid Cd concentration, and the serum thyroid stimulating hormone (TSH) level, whereas the serum thyroxine (T4) level was decreased compared to control rats. The treatment of Cd-exposed rats with Se alone only partially protected from the Cd-induced decrease in serum T4 level. The treatment of Cd-exposed animals with Zn alone partially protected against Cd-induced thyroid dysfunction by maintaining normal RTW and by decreasing Cd concentration in the thyroid. It also partially prevents Cd-induced decrease in serum T4 level. The combined treatment of Cd-exposed animals with Se and Zn induced a more significant decrease in the thyroid Cd concentration than the Zn supplement and a total correction of the RTW. This treatment was also more effective than that with Se or Zn alone in reversing Cd-induced decrease in serum T4 level and Cd-induced increase in serum TSH level. Se and Zn can have a synergistic role against Cd-induced thyroid dysfunction.
Collapse
Affiliation(s)
- Fatima Hammouda
- UR Eléments Trace, Radicaux Libres, Systèmes Antioxydants et Pathologies Humaines et Environnement, Faculté de Médecine, 5000 Monastir, Tunisia
| | | | | | | | | | | |
Collapse
|
36
|
Choo MH, Lee JJ, Lee MY. Effect of Pimpinella Brachycarpa Ethanol Extract on Chronically Ethanol-Induced Liver Damage in Rats. ACTA ACUST UNITED AC 2007. [DOI: 10.5352/jls.2007.17.10.1406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
37
|
Kusakabe T, Nakajima K, Suzuki K, Nakazato K, Takada H, Satoh T, Oikawa M, Kobayashi K, Koyama H, Arakawa K, Nagamine T. The changes of heavy metal and metallothionein distribution in testis induced by cadmium exposure. Biometals 2007; 21:71-81. [PMID: 17443291 DOI: 10.1007/s10534-007-9094-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2006] [Accepted: 02/22/2007] [Indexed: 10/23/2022]
Abstract
Cadmium (Cd) is known to cause various disorders in the testis, and metallothionein (MT) is known as a protein, which has a detoxification function for heavy metals. However, the changes of Fe, Cu, and Zn distribution in the testis induced by Cd exposure have not been well examined. Moreover, only a few studies have been reported on the localization of MT after Cd exposure. In this study, we have investigated the changes of Fe, Cu, and Zn distribution in Cd-exposed testis by a newly developed in air micro-Particle Induced X-ray Emission (PIXE) method. Also, we examined the distribution of MT expression in testis. In the testis of Cd-treated rats with significant increases of lipid peroxidation, the sertoli cell tight junction was damaged by Cd exposure, resulting from disintegration of the blood testis barrier (BTB). Evaluation by in air micro-PIXE method revealed that Cd and Fe distribution were increased in the interstitial tissues and seminiferous tubules. The histological findings indicated that the testicular tissue damage was advanced, which may have been caused by Fe flowing into seminiferous tubules followed by disintegration of the BTB. As a result, Fe was considered to enhance the tissue damage caused by Cd exposure. MT was detected in spermatogonia, spermatocytes, and Sertoli's cells in the testis of Cd-treated rats, but was not detected in interstitial tissues. These results suggested that MT was induced by Cd in spermatogonia, spermatocytes, and Sertoli's cells, and was involved in the resistance to tissue damage induced by Cd.
Collapse
Affiliation(s)
- Takahiko Kusakabe
- School of Health Sciences, Faculty of Medicine, Gunma University, 3-39-15 Shouwa-machi, Maebashi, Gunma 371-8514, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Ren M, Rajendran R, Ning P, Tan Kwong Huat B, Choon Nam O, Watt F, Jenner A, Halliwell B. Zinc supplementation decreases the development of atherosclerosis in rabbits. Free Radic Biol Med 2006; 41:222-5. [PMID: 16814102 DOI: 10.1016/j.freeradbiomed.2006.03.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2006] [Revised: 03/16/2006] [Accepted: 03/21/2006] [Indexed: 11/16/2022]
Abstract
Developing atherosclerotic plaques in cholesterol-fed rabbits are enriched in iron but depleted in zinc. In order to examine further the role of zinc, New Zealand White rabbits were fed a high-cholesterol 1% (w/w) diet with zinc (1 g/kg) supplementation for 8 weeks. After the 8-week period, the average atherosclerotic lesion cross-sectional areas in the aortas of the animals fed with the zinc supplement were significantly decreased (1.0 mm2) compared with lesion areas of the animals fed only on the high-cholesterol diet (3.1 mm2). Using nuclear microscopy, a technique for mapping and measuring trace elements in tissue sections, lesion zinc levels (24 ppm) were observed to be unchanged in the zinc-fed rabbits compared to controls. However, average lesion Fe levels in the zinc-fed group were measured at 32 ppm, whereas in the control group the average Fe levels were significantly higher at 43 ppm (P = 0.03). Our data support the concept that zinc may have an antiatherogenic effect by decreasing iron levels in the lesion, possibly leading to inhibition of iron-catalyzed free radical reactions.
Collapse
Affiliation(s)
- Minqin Ren
- Centre for Ion Beam Applications, National University of Singapore, Department of Physics, Singapore
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Aravind P, Prasad MNV. Cadmium-Zinc interactions in a hydroponic system using Ceratophyllum demersum L.: adaptive ecophysiology, biochemistry and molecular toxicology. ACTA ACUST UNITED AC 2005. [DOI: 10.1590/s1677-04202005000100002] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The interaction between an essential micronutrient, Zn and a toxic non-essential element, Cd has been comprehensively reviewed based on our experiments conducted with Ceratophyllum demersum L. in a hydroponic system. Since Cd and Zn belong to the group IIB transition elements and show similarities in chemistry, geochemistry and environmental properties, it would be one of the elemental pairs of choice to investigate metal-metal interactions. Evidence in support of the protective role of Zn against Cd toxicity in Ceratophyllum demersum L. is presented in this review. Based on our experimental results, we conclude that the antioxidant properties of Zn play an important role in counteracting Cd toxicity.
Collapse
|
40
|
Hutcheson RM, Engelmann MD, Cheng IF. Voltammetric studies of Zn and Fe complexes of EDTA: Evidence for the push mechanism. Biometals 2005; 18:43-51. [PMID: 15865409 DOI: 10.1007/s10534-004-5769-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The 'push' hypothesis for the antioxidant action of Zn2+ is based on its displacement of iron from a low molecular weight pro-oxidant complex. In this study, the chemical plausibility of that proposed function is investigated by cyclic voltammetry. As a model for a pro-oxidative low molecular weight iron complex the Fe(II/III)/EDTA couple was examined. This complex was selected for its well-defined electrochemical, iron stability constants, and similarity to other low molecular weight chelates in physiological fluids in terms of logical binding sites, i.e. amino, and carboxylate groups. Also investigated were iron complexes of nitrilotriacetic acid and DL-glutamic acid. Results demonstrate that approximately 90% of the cyclic voltammetric peak current for Fe(III)EDTA reduction and the EC' current for the mediated reduction of H2O2 by Fe(II/III)EDTA (Fenton Reaction) are lost when Zn2+ is introduced to a 1:1 molar ratio relative to iron. All experiments were conducted in HEPES buffered solutions at pH 7.4. Iron (II/III) complexes of nitrilotriacetic acid and DL-glutamic acid followed the same trends. Cyclic voltammetric experiments indicate that Zn2+ displaces Fe(III) from EDTA despite the much larger stability constant for the iron complex (10(25.1)) versus zinc (10(16.50)). The hydrolysis aided displacement of Fe(III) from EDTA by Zn2+ is considered by the equilibria modeling program, HySS. With Fe(III) hydrolysis products included, Zn2+ is able to achieve 90% displacement of iron from EDTA, a result consistent with cyclic voltammetric observations.
Collapse
Affiliation(s)
- Ryan M Hutcheson
- Department of Chemistry, University of Idaho Moscow, Idaho 83844-2343, USA
| | | | | |
Collapse
|
41
|
Faure P, Bouvard S, Roucard C, Favier A, Halimi S. Zinc protects HeLa-tat cells against free radical cytotoxicity induced by glucose. J Trace Elem Med Biol 2005; 18:269-76. [PMID: 15966576 DOI: 10.1016/j.jtemb.2004.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study, we investigated the protective effect of zinc on the glucose-induced cytotoxicity in HeLa wild and HeLa-tat cells (30 and 20 mmol/l glucose, respectively). HeLa cells transfected with the protein Tat exhibit a lower antioxidant defense system. Incubation of HeLa wild and HeLa-tat cells with high glucose levels led to a rapid increase in generation of reactive oxygen species (ROS). As expected in the presence of high glucose concentrations, the viability was reduced for both cell lines. The redox status essentially regulated by thiol groups may play an important role in the apoptotic process. Thus, we developed a new method using the p-nitrophenyl disulfide to measure cytosolic thiol groups in intact cells. Cellular zinc was measured using inductively coupled plasma mass spectrometry. Intracellular thiol groups and intracellular zinc concentrations were significantly lower in HeLa cells cultured in hyperglycemic conditions, and their concentrations were significantly lower in HeLa-tat cells than in HeLa wild cells. However, the generation of ROS and the induction of apoptosis by a glucose specific mechanism were prevented by zinc (50 micromol/l) and the intracellular thiol groups and zinc concentrations significantly increased in both cell lines to become similar to the initial values. These results suggest that the glucose oxidation and its subsequent effects on the cells can be prevented by a biological antioxidant such as zinc.
Collapse
Affiliation(s)
- Patrice Faure
- Laboratoire HP2, Faculté de Médecine, Université Joseph Fourier, 38000 Grenoble, France.
| | | | | | | | | |
Collapse
|
42
|
DeCoursey TE. During the respiratory burst, do phagocytes need proton channels or potassium channels, or both? Sci Signal 2004; 2004:pe21. [PMID: 15150421 DOI: 10.1126/stke.2332004pe21] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The NADPH (reduced form of nicotinamide adenine dinucleotide phosphate) oxidase enzyme complex, a crucial component of innate immunity, produces superoxide anion (O2-), which is a precursor to many reactive oxygen species. NADPH oxidase produces O2- by transferring electrons from intracellular NADPH across the membrane to extracellular (or phagosomal) oxygen and is thus electrogenic. It is widely believed that electroneutrality is preserved by proton flux through voltage-gated proton channels. A series of recent papers have challenged several key aspects of this view of the "respiratory burst." The most recent study solidifies the proposal that O2- and other reactive oxygen species produced by phagocytes are not toxic to microbes under physiological conditions. Further, an essential role for high-conductance, Ca2+-activated K+ (maxi-K+) channels in microbe killing is proposed. Finally, the results cast doubt on the widely held view that H+ efflux through voltage-gated proton channels (i) is the main mechanism of charge compensation, and (ii) is essential to continuous O2- production by the NADPH oxidase. My analysis of the new data and of a large body of data in the literature indicates that the proposed role of maxi-K+ channels in the respiratory burst is not yet credibly established. H+ efflux through proton channels thus remains the most viable mechanism for charge compensation and continuous O2- production. The important question of the toxicity of reactive oxygen species in phagocytes and in other cells, which has long been simply taken for granted, is a widespread assumption that deserves critical study.
Collapse
Affiliation(s)
- Thomas E DeCoursey
- Department of Molecular Biophysics and Physiology, Rush University Medical Center, 1750 West Harrison, Chicago, IL 60612, USA.
| |
Collapse
|
43
|
Abstract
The study was conducted to determine whether zinc supplementation could alleviate the detrimental effects of high ambient temperature (34 degrees C) on egg production, digestibility of nutrients and antioxidant status in laying Japanese quail. Quail (n = 180; 52 d old) were divided into six groups (n = 30/group) and were fed a basal diet or the basal diet supplemented with 30 or 60 mg of zinc (ZnSO(4). H(2)O)/kg diet. Birds were kept at 22 degrees C and 58% relative humidity (RH). At 13 wk of age, the thermoneutral (TN) groups remained at the same temperature, whereas the heat-stress (HS) groups were kept in an environmentally controlled room at 34 degrees C and 42% RH for 3 wk. Heat exposure decreased egg production in birds fed the basal diet (P = 0.001). Linear increases in feed intake (P = 0.01) and egg production (P = 0.004) and improved feed efficiency (P = 0.01) and egg quality variables (P <or= 0.05) occurred in zinc-supplemented groups reared under HS conditions. Heat exposure decreased digestibility of nutrients (P = 0.001), and these decreases were ameliorated by zinc supplementation (P <or= 0.05). Serum vitamin C (P = 0.05), vitamin E (P = 0.01) and zinc (P = 0.001) concentrations increased linearly, whereas malondialdehyde concentrations decreased (P = 0.002) as dietary zinc supplementation increased. No significant differences in any values were observed in the TN groups (P > 0.05). Results of the present study suggest that supplementation with 60 mg zinc/kg diet protects quail by reducing the negative effects of heat stress.
Collapse
Affiliation(s)
- Kazim Sahin
- Department of Animal Nutrition, Faculty of Veterinary Science, Firat University, Elazig Turkey.
| | | |
Collapse
|
44
|
Zhou Z, Sun X, Lambert JC, Saari JT, Kang YJ. Metallothionein-independent zinc protection from alcoholic liver injury. THE AMERICAN JOURNAL OF PATHOLOGY 2002; 160:2267-74. [PMID: 12057929 PMCID: PMC1850821 DOI: 10.1016/s0002-9440(10)61174-1] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/18/2002] [Indexed: 12/19/2022]
Abstract
Previous studies using metallothionein (MT)-overexpressing transgenic mice have demonstrated that MT protects the liver from oxidative injury induced by alcohol. The mechanism of action of MT is unknown. Because MT primarily binds to zinc under physiological conditions and releases zinc under oxidative stress and zinc is an antioxidant element, it is likely that zinc mediates the protective action of MT. The present study was undertaken to determine the distinct role of zinc in hepatic protection from alcoholic injury. MT I/II-knockout (MT-KO) mice along with their wild-type controls were treated with three gastric doses of ethanol at 5 g/kg at 12-hour intervals. Zinc sulfate was injected intraperitoneally in a dosage of 5 mg/kg/day for 3 days before ethanol treatment. MT concentrations in MT-KO mice were very low and zinc concentrations in MT-KO mice were lower than in wild-type mice. Zinc treatment significantly elevated hepatic MT concentrations only in wild-type mice and increased zinc concentrations in both MT-KO and wild-type mice. Ethanol treatment caused degenerative morphological changes and necrotic appearance in the livers of MT-KO mice. Microvesicular steatosis was the only ethanol-induced change in the liver of wild-type mice. Ethanol treatment decreased hepatic glutathione concentrations and increased hepatic lipid peroxidation, and the concentrations of lipid peroxide products in the wild-type mice were lower than in the MT-KO mice. All of these alcohol-induced toxic responses were significantly suppressed by zinc treatment in both MT-KO and wild-type mouse livers. These results demonstrate that zinc, independent of MT, plays an important role in protection from alcoholic liver injury. However, MT is required to maintain high levels of zinc in the liver, suggesting that the protective action of MT in the liver is likely mediated by zinc.
Collapse
Affiliation(s)
- Zhanxiang Zhou
- Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky 40202, USA
| | | | | | | | | |
Collapse
|
45
|
Chimienti F, Jourdan E, Favier A, Seve M. Zinc resistance impairs sensitivity to oxidative stress in HeLa cells: protection through metallothioneins expression. Free Radic Biol Med 2001; 31:1179-90. [PMID: 11705696 DOI: 10.1016/s0891-5849(01)00701-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To analyze the effects of high concentrations of zinc ions on oxidative stress protection, we developed an original model of zinc-resistant HeLa cells (HZR), by using a 200 microM zinc sulfate-supplemented medium. Resistant cells specifically accumulate high zinc levels in intracellular vesicles. These resistant cells also exhibit high expression of metallothioneins (MT), mainly located in the cytoplasm. Exposure of HZR to Zn-depleted medium for 3 or 7 d decreases the intracellular zinc content, but only slightly reduces MT levels of resistant cells. No changes of the intracellular redox status were detected, but zinc resistance enhanced H2O2-mediated cytotoxicity. Conversely, zinc-depleted resistant cells were protected against H2O2-induced cell death. Basal- and oxidant-induced DNA damage was increased in zinc resistant cells. Moreover, measurement of DNA damage on zinc-depleted resistant cells suggests that cytoplasmic metal-free MT ensures an efficient protection against oxidative DNA damage, while Zn-MT does not. This newly developed Zn-resistant HeLa model demonstrates that high intracellular concentrations of zinc enhance oxidative DNA damage and subsequent cell death. Effective protection against oxidative damage is provided by metallothionein under nonsaturating zinc conditions. Thus, induction of MT by zinc may mediate the main cellular protective effect of zinc against oxidative injury.
Collapse
Affiliation(s)
- F Chimienti
- Laboratoire de Biologie du Stress Oxydant, Université J. Fourier, La Tronche, France.
| | | | | | | |
Collapse
|
46
|
Abstract
Potential mechanisms underlying zinc's capacity to protect membranes from lipid oxidation were examined in liposomes. Using lipid oxidation initiators with different chemical and physical properties (transition metals, lipid- or water-soluble azo compounds, ultraviolet radiation c (UVc), superoxide radical anion (O2*-), and peroxynitrite (ONOO-) we observed that zinc only prevented copper (Cu2+)- and iron (Fe2+)-initiated lipid oxidation. In the presence of Fe2+, the antioxidant action of zinc depended directly on the negative charge density of the membrane bilayer. An inverse correlation (r2: 0.96) was observed between the capacity of zinc to prevent iron binding to the membrane and the inhibitory effect of zinc on Fe2+-initiated lipid oxidation. The interaction of zinc with the bilayer did not affect physical properties of the membrane, including rigidification and lateral phase separation known to increase lipid oxidation rates. The interactions between zinc and the lipid- (alpha-tocopherol) and water- (epicatechin) soluble antioxidants were studied. The inhibition of Fe2+-induced lipid oxidation by either alpha-tocopherol or epicatechin was increased by the simultaneous addition of zinc. The combined actions of alpha-tocopherol (0.01 mol%), epicatechin (0.5 microM) and zinc (5-50 microM) almost completely prevented Fe2+ (25 microM)-initiated lipid oxidation. These results show that zinc can protect membranes from iron-initiated lipid oxidation by occupying negatively charged sites with potential iron binding capacity. In addition, the synergistic actions of zinc with lipid and water-soluble antioxidants to prevent lipid oxidation, suggests that zinc is a pivotal component of the antioxidant defense network that protects membranes from oxidation.
Collapse
Affiliation(s)
- M P Zago
- Instituto de Química y Fisicoquímica Biológicas (UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | | |
Collapse
|
47
|
Lin AM. Coexistence of zinc and iron augmented oxidative injuries in the nigrostriatal dopaminergic system of SD rats. Free Radic Biol Med 2001; 30:225-31. [PMID: 11165868 DOI: 10.1016/s0891-5849(00)00464-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Clinical studies have demonstrated an excess of transition metals, including zinc and iron, in the substantia nigra (SN) of Parkinson's patients. In the present study, the neurotoxic effect of zinc was investigated using iron as a positive control. Addition of zinc or iron to brain homogenates increased lipid peroxidation. Zinc was less potent than iron in inducing lipid peroxidation. Coincubation with desferrioxamine prevented zinc- and iron-induced lipid peroxidation. Furthermore, glutathione (GSH), S-nitroso-N-acetylpenicillamine, or melatonin inhibited zinc-induced lipid peroxidation. The oxidative effect of zinc was further investigated in anesthetized rats. Seven days after intranigral infusion of zinc, lipid peroxidation was elevated in the infused SN, and dopamine content and tyrosine hydroxylase-positive axons were decreased in the ipsilateral striatum. Zinc was less potent than iron in inducing neurodegeneration in vivo. L-Buthionine-[S,R]-sulfoximine pretreatment (i.c.v.), which depletes cellular GSH levels, enhanced zinc-induced oxidative injuries in the nigrostriatal dopaminergic system. Moreover, simultaneous infusion of zinc and iron appeared to augment oxidative injuries in rat brain. Taken together, our results demonstrate that intranigral infusion of zinc caused degeneration of the nigrostriatal dopaminergic system in rat brain. Furthermore, coexistence of zinc and iron augmented oxidative injuries in rat brain. These findings indicate that both zinc and iron contribute to the etiology of Parkinsonism.
Collapse
Affiliation(s)
- A M Lin
- Department of Medical Research and Education, Veterans General Hospital-Taipei and Department of Physiology, National Yang-Ming University, Taipei, Taiwan.
| |
Collapse
|
48
|
Satoh M, Shimada A, Zhang B, Tohyama C. Renal toxicity caused by cisplatinum in glutathione-depleted metallothionein-null mice. Biochem Pharmacol 2000; 60:1729-34. [PMID: 11077056 DOI: 10.1016/s0006-2952(00)00478-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
To elucidate the protective role of metallothionein (MT) and glutathione (GSH) in renal toxicity caused by cisplatinum (cis-DDP), we examined the sensitivity of GSH-depleted MT-null mice to the renal toxicity of cis-DDP. Blood urea nitrogen and creatinine values in the serum, and histopathological change in the kidney were utilized as indicators of nephrotoxicity caused by cis-DDP. Although cis-DDP exerted renal toxicity in MT-null mice and wild-type mice, the toxicity was more conspicuous in the MT-null mice than in the wild-type mice. Moreover, renal toxicity caused by cis-DDP was enhanced significantly by a decrease in the renal GSH level by buthionine sulfoximine (BSO) pretreatment in both kinds of mice. The cis-DDP-caused nephrotoxicity that was enhanced by BSO-mediated GSH depletion was much more severe in the MT-null mice than in the wild-type mice. However, preadministration of zinc sulfate cancelled the BSO-enhanced, cis-DDP-dependent renal toxicity in the wild-type mice, but not in the MT-null mice. In the present study, we found that MT and GSH play an important, cooperative role in detoxification of severe kidney damage caused by cis-DDP. Moreover, the renal MT preinduced by zinc could protect mice from cis-DDP nephrotoxicity enhanced by GSH depletion.
Collapse
Affiliation(s)
- M Satoh
- Environmental Health Sciences Division, National Institute for Environmental Studies, 305-0053, Tsukuba, Japan.
| | | | | | | |
Collapse
|
49
|
Abstract
The ability of zinc to retard oxidative processes has been recognized for many years. In general, the mechanism of antioxidation can be divided into acute and chronic effects. Chronic effects involve exposure of an organism to zinc on a long-term basis, resulting in induction of some other substance that is the ultimate antioxidant, such as the metallothioneins. Chronic zinc deprivation generally results in increased sensitivity to some oxidative stress. The acute effects involve two mechanisms: protection of protein sulfhydryls or reduction of (*)OH formation from H(2)O(2) through the antagonism of redox-active transition metals, such as iron and copper. Protection of protein sulfhydryl groups is thought to involve reduction of sulfhydryl reactivity through one of three mechanisms: (1) direct binding of zinc to the sulfhydryl, (2) steric hindrance as a result of binding to some other protein site in close proximity to the sulfhydryl group or (3) a conformational change from binding to some other site on the protein. Antagonism of redox-active, transition metal-catalyzed, site-specific reactions has led to the theory that zinc may be capable of reducing cellular injury that might have a component of site-specific oxidative damage, such as postischemic tissue damage. Zinc is capable of reducing postischemic injury to a variety of tissues and organs through a mechanism that might involve the antagonism of copper reactivity. Although the evidence for the antioxidant properties of zinc is compelling, the mechanisms are still unclear. Future research that probes these mechanisms could potentially develop new antioxidant functions and uses for zinc.
Collapse
Affiliation(s)
- S R Powell
- Department of Obstetrics-Gynecology, Winthrop University Hospital, Mineola, NY 11501, USA
| |
Collapse
|
50
|
Sortino S, Scaiano JC, Guidi GD, Monti S. Effect of p-Cyclodextrin Complexation on the Photochemical and Photosensitizing Properties of Tolmetin: A Steady-State and Time-Resolved Study. Photochem Photobiol 1999. [DOI: 10.1111/j.1751-1097.1999.tb08250.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|