1
|
Liu T, Zheng X, Guo M, Bao D, Yang H. The genotoxicity impact of heavy metals on the Escherichia coli. ENVIRONMENTAL TECHNOLOGY 2023:1-13. [PMID: 37727136 DOI: 10.1080/09593330.2023.2260120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/11/2023] [Indexed: 09/21/2023]
Abstract
In present work, the genotoxicity of Hg2+, Ag+, Cr6+, Ni2+, Pb2+, Co2+, Mn2+, Zn2+, and Cr3+ was investigated via a quantitative toxicogenomics assay, to understand the toxic mechanism of heavy metals with greater depth. Under the experimental conditions, Hg2+, Ag+, and Cr6+ showed a more serious toxic impact on the expression of functional genes (eg., oxyR, katG, grxA, osmE, emrE, dinG) than Ni2+, Pb2+, Co2+, Mn2+, Zn2+, and Cr3+, while the protein, oxidative, and membrane stress response pathways were more sensitive to the toxicity of Hg2+, Ag+, and Cr6+ than the DNA and general stress response pathways. Compared with the other kinds of heavy metals, Ni2+, Pb2+, Co2+, and Mn2+ altered the expression of functional genes (uvrY, recX, mutY, and sbmC) related to the DNA stress response pathways more seriously, while Zn2+ and Cr3+ changed the expression of the functional genes (yfjG, ydgL, ssrA, and osmC) associated with the general stress response pathway more significantly. Meanwhile, the toxicity of Ni2+, Pb2+, Co2+, and Mn2+ was slightly higher than that of Zn2+ and Cr3+ in terms of the total value of transcriptional effect level Index (TELI) by detecting the promoter activities of different functional genes. In addition, to survive the toxicity of heavy metals, the expression of multidrug efflux genes (ydgL, cyoA, emrA, and emrE) and toxicity-resistant genes (Ion, dnaJ, clpB, mutY, dnaK, rpoD, sbmC) mainly functioned.
Collapse
Affiliation(s)
- Tong Liu
- School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, People's Republic of China
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Xing Zheng
- School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, People's Republic of China
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People's Republic of China
- National Supervision & Inspection Center of Environmental Protection Equipment Quality, Jiangsu, Yixing, People's Republic of China
| | - Menghan Guo
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Dongguan Bao
- Shanghai Hanyuan Engineering & Technology Company Limited, Shanghai, People's Republic of China
| | - Heyun Yang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People's Republic of China
| |
Collapse
|
2
|
Maeda Y. Roles of Sulfites in Reverse Osmosis (RO) Plants and Adverse Effects in RO Operation. MEMBRANES 2022; 12:membranes12020170. [PMID: 35207091 PMCID: PMC8874662 DOI: 10.3390/membranes12020170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023]
Abstract
More than 60 years have passed since UCLA first announced the development of an innovative asymmetric cellulose acetate reverse osmosis (RO) membrane in 1960. This innovation opened a gate to use RO for commercial use. RO is now ubiquitous in water treatment and has been used for various applications, including seawater desalination, municipal water treatment, wastewater reuse, ultra-pure water (UPW) production, and industrial process waters, etc. RO is a highly integrated system consisting of a series of unit processes: (1) intake system, (2) pretreatment, (3) RO system, (4) post-treatment, and (5) effluent treatment and discharge system. In each step, a variety of chemicals are used. Among those, sulfites (sodium bisulfite and sodium metabisulfite) have played significant roles in RO, such as dechlorination, preservatives, shock treatment, and sanitization, etc. Sulfites especially became necessary as dechlorinating agents because polyamide hollow-fiber and aromatic thin-film composite RO membranes developed in the late 1960s and 1970s were less tolerable with residual chlorine. In this review, key applications of sulfites are explained in detail. Furthermore, as it is reported that sulfites have some adverse effects on RO membranes and processes, such phenomena will be clarified. In particular, the following two are significant concerns using sulfites: RO membrane oxidation catalyzed by heavy metals and a trigger of biofouling. This review sheds light on the mechanism of membrane oxidation and triggering biofouling by sulfites. Some countermeasures are also introduced to alleviate such problems.
Collapse
Affiliation(s)
- Yasushi Maeda
- LG Chem Japan Co., Ltd., Kyobashi Trust Tower 12F, 2-1-3 Kyobashi Chuo-ku, Tokyo 104-0031, Japan
| |
Collapse
|
3
|
Requeijo TB, Serrano SHP, Moya HD. DNA damage in a solution containing copper(II) ions and ascorbic acid: Effect of the presence of sulfite. BRAZ J PHARM SCI 2021. [DOI: 10.1590/s2175-979020200004181084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Thais Boscolo Requeijo
- Faculdade de Medicina da Fundação do ABC - CEPES (Centro de Estudos, Pesquisa, Prevenção e Tratamento em Saúde), Brazil
| | | | - Horacio Dorigan Moya
- Faculdade de Medicina da Fundação do ABC - CEPES (Centro de Estudos, Pesquisa, Prevenção e Tratamento em Saúde), Brazil
| |
Collapse
|
4
|
Kurin-Csörgei K, Poros E, Csepiova J, Orbán M. Periodic changes in the oxidation states of the center ion in the cobalt-histidine complex induced by the BrO 3- - SO 32- pH-oscillator. CHAOS (WOODBURY, N.Y.) 2018; 28:053114. [PMID: 29857683 DOI: 10.1063/1.5024461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The coupling of acid-base type pH-dependent equilibria to pH-oscillators expanded significantly the number and type of species which can participate in oscillatory chemical processes. Here, we report a new version of oscillatory phenomena that can appear in coupled oscillators. Oscillations in the oxidation states of the center ion bound in a chelate complex were generated in a combined system, when the participants of the oscillator as dynamical unit and the components of the complex formation interacted with each other through redox reaction. It was demonstrated, when the BrO3- - SO32- pH-oscillator and the Co2+ - histidine complex were mixed in a continuous stirred tank reactor, periodic changes in the pH were accompanied with periodic transitions in the oxidation number of the cobalt ion between +2 and +3. The oscillatory build up and removal of the Co(III)-complex were followed by recording the light absorption at the wavelength characteristic for this species with simultaneous monitoring the pH-oscillations. The dual role of the SO32- ion in the explanation of this observation was pointed out. Its partial and consecutive total oxidations by BrO3- give rise to and maintain sustained pH-oscillations in the combined system and its presence induces the rapid conversion of the Co2+ to a highly inert Co(III)-histidine chelate when the system jumps to and remains in the high pH-state. The oscillatory cycle is completed when the Co(III)-complex is washed out from the reactor and the reagents are replenished by the flow during the time the system spends in the acidic range of pH. The idea, to couple a core oscillator to an equilibrium through a redox reaction that takes place between the constituents of the oscillator and the target species of the linked subsystem, may be generally used to bring about forced oscillations in many other combined chemical systems.
Collapse
Affiliation(s)
- Krisztina Kurin-Csörgei
- Department of Analytical Chemistry, Institute of Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
| | - Eszter Poros
- Department of Analytical Chemistry, Institute of Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
| | - Julianna Csepiova
- Department of Analytical Chemistry, Institute of Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
| | - Miklós Orbán
- Department of Analytical Chemistry, Institute of Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
| |
Collapse
|
5
|
Xiong X, Gan J, Zhan W, Sun B. Effects of oxygen and weak magnetic field on Fe(0)/bisulfite system: performance and mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:16761-16770. [PMID: 27184150 DOI: 10.1007/s11356-016-6672-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 04/10/2016] [Indexed: 06/05/2023]
Abstract
The performance and mechanisms of 4-nitrophenol (4-NP) degradation by the Fe(0)/bisulfite system were systematically investigated for the first time. The evidences presented in this study verified that O2 was a crucial factor that affected the mechanism of Fe(0)/bisulfite-driven 4-NP degradation. In the Fe(0)/bisulfite/O2 system, Fe(0) acted as a supplier of Fe(2+) to catalyze bisulfite oxidation that induced a chain reaction to produce reactive radicals for 4-NP degradation. While under N2 purging condition, bisulfite worked as a specified reductant that facilitated the transformation of Fe(3+) to nascent Fe(2+) ions, which principally accounted for the reductive removal of 4-NP. The application of a weak magnetic field (WMF) efficiently improved the removal rate of 4-NP and did not alter the mechanisms in both Fe(0)/bisulfite/O2 and Fe(0)/bisulfite/N2 processes. The secondary radicals, HO(·), SO4 (·-), and SO5 (·-), were considered as the most possible active oxidants contributing to the oxidative removal of 4-NP and even partial mineralization under an oxic condition. Compared with anoxic conditions, the performance removal of 4-NP by the WMF-Fe(0)/bisulfite/O2 system showed less pHini dependence. To facilitate the application of WMF-Fe(0)/bisulfite/O2 technology in real practice, premagnetization of Fe(0) was employed to combine with bisulfite/O2 and proved to be an effective and applicable method for 4-NP removal.
Collapse
Affiliation(s)
- Xinmei Xiong
- Department of Civil Engineering and Urban Construction, Jiujiang University, Jiujiang, 332005, Jiangxi, People's Republic of China.
| | - Jinhong Gan
- Department of Civil Engineering and Urban Construction, Jiujiang University, Jiujiang, 332005, Jiangxi, People's Republic of China
| | - Wei Zhan
- Department of Civil Engineering and Urban Construction, Jiujiang University, Jiujiang, 332005, Jiangxi, People's Republic of China
| | - Bo Sun
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| |
Collapse
|
6
|
A New Photoluminescent Co(II)-Diphosphate Cluster Templated by Fampridine Cation: Synthesis and Biophysicochemical Evaluation. J CLUST SCI 2016. [DOI: 10.1007/s10876-015-0966-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
7
|
Pardeshi KA, Malwal SR, Banerjee A, Lahiri S, Rangarajan R, Chakrapani H. Thiol activated prodrugs of sulfur dioxide (SO2) as MRSA inhibitors. Bioorg Med Chem Lett 2015; 25:2694-7. [PMID: 25981687 DOI: 10.1016/j.bmcl.2015.04.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 04/07/2015] [Accepted: 04/17/2015] [Indexed: 10/23/2022]
Abstract
Drug resistant infections are becoming common worldwide and new strategies for drug development are necessary. Here, we report the synthesis and evaluation of 2,4-dinitrophenylsulfonamides, which are donors of sulfur dioxide (SO2), a reactive sulfur species, as methicillin-resistant Staphylococcus aureus (MRSA) inhibitors. N-(3-Methoxyphenyl)-2,4-dinitro-N-(prop-2-yn-1-yl)benzenesulfonamide (5e) was found to have excellent in vitro MRSA inhibitory potency. This compound is cell permeable and treatment of MRSA cells with 5e depleted intracellular thiols and enhanced oxidative species both results consistent with a mechanism involving thiol activation to produce SO2.
Collapse
Affiliation(s)
- Kundansingh A Pardeshi
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Satish R Malwal
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India
| | - Ankita Banerjee
- Vitas Pharma Research Private Limited, Technology Business Incubator, University of Hyderabad, C.R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Surobhi Lahiri
- Vitas Pharma Research Private Limited, Technology Business Incubator, University of Hyderabad, C.R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Radha Rangarajan
- Vitas Pharma Research Private Limited, Technology Business Incubator, University of Hyderabad, C.R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Harinath Chakrapani
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pune 411 008, Maharashtra, India.
| |
Collapse
|
8
|
Jin J, Gong Y, Li L, Han X, Meng Q, Liu Y, Niu S. Spectroscopic properties of a series of Co(II) coordination polymers and the influence of Co(II) coordination environment on photoelectric property. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:856-863. [PMID: 25280332 DOI: 10.1016/j.saa.2014.08.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 08/07/2014] [Accepted: 08/23/2014] [Indexed: 06/03/2023]
Abstract
Four Co(II) coordination polymers, [Co(suc)]n 1, [Co(pdc)]n 2, {[Co7(suc)4(OH)6(H2O)3]·8H2O}n 3, {[Co(bdc)(phen)(H2O)]·H2O}n 4 (H2suc=succinic acid, H2pdc=pyridine-3,4-dicarboxylic acid, H2bdc=1,2-benzenedicarboxylic acid, phen=1,10-phenanthroline) were hydrothermally synthesized and characterized by X-ray single-crystal diffraction, surface photovoltage spectroscopy (SPS), electrical conductivity, thermogravimetric analysis (TG), ultraviolet visible and near-infrared absorption spectrum (UV-Vis-NIR), infrared spectrum (IR), and elemental analysis. The structural analyses indicate that the coordination numbers of the Co(II) ions are 4, 5, 6 and 6 for the polymers 1-4, respectively. And polymers 1 and 2 exhibit 3D structure formed by suc(2-) and pdc(2-) anions bridging Co(II) ions, respectively. Polymer 3 exhibits a 2D structure with suc(2-) anions bridging seven-nuclear [Co7(OH)6(H2O)3](3-) unit and polymer 4 is a 1D structure bridged by bdc(2-) anions. The surface photoelectric properties of the cobalt polymers were mainly studied by SPS. The results of SPS reveal that all polymers possess certain photoelectric conversion property in the range of 300-800 nm. The influences of the structure, coordination micro-environment of central metal ion and structural dimensionality on response bands of SPS were discussed.
Collapse
Affiliation(s)
- Jing Jin
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Yuanyuan Gong
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Lei Li
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Xiao Han
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Qin Meng
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Yonghua Liu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China
| | - Shuyun Niu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China.
| |
Collapse
|
9
|
Dóka E, Lente G, Fábián I. Kinetics of the autoxidation of sulfur(IV) co-catalyzed by peroxodisulfate and silver(I) ions. Dalton Trans 2014; 43:9596-603. [PMID: 24827586 DOI: 10.1039/c4dt00900b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics and mechanism of the reaction between dissolved oxygen and sulfur(iv) was studied in aqueous acidic medium using co-catalysts peroxodisulfate and silver(i) ions. The presence of both catalysts was required to observe measurable rates in the studied process. The reaction rate was determined through following the UV-absorption of hydrated sulfur dioxide, and the trends were determined as a function of pH, reactant and catalyst concentrations. Individual kinetic curves under conditions where dissolved oxygen was the limiting reagent were close to zeroth-order. A chain mechanism with four chain carriers, sulfite, sulfate, peroxomonosulfate ion radical and silver(ii) ion, is proposed to interpret all the kinetic and stoichiometric findings, and an explicit formula was obtained for the rate law. The role of the co-catalysts is to produce chain carriers, whereas silver(i) and silver(ii) ions also participate in chain propagation steps. Further supporting evidence for the proposed mechanism was gained in laser flash photolysis studies, which showed that sulfate ion radical reacts quite rapidly with silver(i) ion.
Collapse
Affiliation(s)
- Eva Dóka
- University of Debrecen, Department of Inorganic and Analytical Chemistry, Debrecen 10, P.O.B. 21, H-4010, Hungary.
| | | | | |
Collapse
|
10
|
Angelé-Martínez C, Goodman C, Brumaghim J. Metal-mediated DNA damage and cell death: mechanisms, detection methods, and cellular consequences. Metallomics 2014; 6:1358-81. [DOI: 10.1039/c4mt00057a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metal ions cause various types of DNA damage by multiple mechanisms, and this damage is a primary cause of cell death and disease.
Collapse
Affiliation(s)
| | - Craig Goodman
- Department of Chemistry
- Clemson University
- Clemson, USA
| | | |
Collapse
|
11
|
Potential implication of the chemical properties and bioactivity of nitrone spin traps for therapeutics. Future Med Chem 2012; 4:1171-207. [PMID: 22709256 DOI: 10.4155/fmc.12.74] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Nitrone therapeutics has been employed in the treatment of oxidative stress-related diseases such as neurodegeneration, cardiovascular disease and cancer. The nitrone-based compound NXY-059, which is the first drug to reach clinical trials for the treatment of acute ischemic stroke, has provided promise for the development of more robust pharmacological agents. However, the specific mechanism of nitrone bioactivity remains unclear. In this review, we present a variety of nitrone chemistry and biological activity that could be implicated for the nitrone's pharmacological activity. The chemistries of spin trapping and spin adduct reveal insights on the possible roles of nitrones for altering cellular redox status through radical scavenging or nitric oxide donation, and their biological effects are presented. An interdisciplinary approach towards the development of novel synthetic antioxidants with improved pharmacological properties encompassing theoretical, synthetic, biochemical and in vitro/in vivo studies is covered.
Collapse
|
12
|
Effect of pH on potassium metabisulphite biocidic activity against yeast and human cell cultures. Food Chem 2012; 134:1327-36. [DOI: 10.1016/j.foodchem.2012.03.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 01/23/2012] [Accepted: 03/06/2012] [Indexed: 02/08/2023]
|
13
|
Zamora PL, Villamena FA. Theoretical and experimental studies of the spin trapping of inorganic radicals by 5,5-dimethyl-1-pyrroline N-oxide (DMPO). 3. Sulfur dioxide, sulfite, and sulfate radical anions. J Phys Chem A 2012; 116:7210-8. [PMID: 22668066 PMCID: PMC3428032 DOI: 10.1021/jp3039169] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Radical forms of sulfur dioxide (SO(2)), sulfite (SO(3)(2-)), sulfate (SO(4)(2-)), and their conjugate acids are known to be generated in vivo through various chemical and biochemical pathways. Oxides of sulfur are environmentally pervasive compounds and are associated with a number of health problems. There is growing evidence that their toxicity may be mediated by their radical forms. Electron paramagnetic resonance (EPR) spin trapping using the commonly used spin trap, 5,5-dimethyl-1-pyrroline N-oxide (DMPO), has been employed in the detection of SO(3)(•-) and SO(4)(•-). The thermochemistries of SO(2)(•-), SO(3)(•-), SO(4)(•-), and their respective conjugate acids addition to DMPO were predicted using density functional theory (DFT) at the PCM/B3LYP/6-31+G**//B3LYP/6-31G* level. No spin adduct was observed for SO(2)(•-) by EPR, but an S-centered adduct was observed for SO(3)(•-)and an O-centered adduct for SO(4)(•-). Determination of adducts as S- or O-centered was made via comparison based on qualitative trends of experimental hfcc's with theoretical values. The thermodynamics of the nonradical addition of SO(3)(2-) and HSO(3)(-) to DMPO followed by conversion to the corresponding radical adduct via the Forrester-Hepburn mechanism was also calculated. Adduct acidities and decomposition pathways were investigated as well, including an EPR experiment using H(2)(17)O to determine the site of hydrolysis of O-centered adducts. The mode of radical addition to DMPO is predicted to be governed by several factors, including spin population density, and geometries stabilized by hydrogen bonds. The thermodynamic data supports evidence for the radical addition pathway over the nucleophilic addition mechanism.
Collapse
Affiliation(s)
- Pedro L. Zamora
- Department of Pharmacology, The Davis Heart and Lung Research Institute and Center for Biomedical EPR Spectroscopy and Imaging, College of Medicine, The Ohio State University, Columbus, Ohio, USA 43210
| | - Frederick A. Villamena
- Department of Pharmacology, The Davis Heart and Lung Research Institute and Center for Biomedical EPR Spectroscopy and Imaging, College of Medicine, The Ohio State University, Columbus, Ohio, USA 43210
| |
Collapse
|
14
|
Yang Z, Wang Y, Yang G. Copper (II) complex of 1,10-phenanthroline and l-tyrosine with DNA oxidative cleavage activity in the gallic acid. Biometals 2011; 24:737-45. [DOI: 10.1007/s10534-011-9426-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 02/13/2011] [Indexed: 11/29/2022]
|
15
|
Alipázaga MV, Moya HD, Coichev N. Effect of some antioxidants on oxidative DNA damage induced by autoxidation of microquantities of sulfite in the presence of Ni(II)/Gly–Gly– L–His. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.491544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | - Nina Coichev
- b Instituto de Química, Universidade de São Paulo , CP 26077, CEP 05513-970, São Paulo, SP, Brazil
| |
Collapse
|
16
|
Chen H, Gao W, Zhang F, Dou C, Yang P. The ligand-structure-selective binding of oligonucleotide by cobalt complexes. INORG CHEM COMMUN 2010. [DOI: 10.1016/j.inoche.2009.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
17
|
|