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Synthesis, Characterization, DNA Binding Properties, Fluorescence Studies and Antioxidant Activity of Transition Metal Complexes with Hesperetin-2-hydroxy Benzoyl Hydrazone. J Fluoresc 2010; 20:891-905. [DOI: 10.1007/s10895-010-0635-z] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Accepted: 03/15/2010] [Indexed: 10/19/2022]
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52
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Sakurai H. Overview and Frontier for the Development of Metallopharmaceutics. ACTA ACUST UNITED AC 2010. [DOI: 10.1248/jhs.56.129] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiromu Sakurai
- Laboratory of Pharmacoanalytical Chemistry, Department of Physical Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science
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53
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Tavadyan LA, Minasyan SH, Musaelyan MV, Harutyunyan LH, Tonikyan HG, Sorenson JRJ. Reactivity of substituted copper(II) salicylates with tert
-butylperoxyl radical: Structure-reactivity relationships. INT J CHEM KINET 2009. [DOI: 10.1002/kin.20439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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54
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Palivan CG, Balasubramanian V, Goodman BA. Global Structure–Activity Analysis in Drug Development Illustrated for Active Cu/Zn Superoxide Dismutase Mimics. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900808] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Cornelia G. Palivan
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland, Fax: +41‐612673855
| | - Vimalkumar Balasubramanian
- Department of Chemistry, University of Basel, Klingelbergstrasse 80, 4056 Basel, Switzerland, Fax: +41‐612673855
| | - Bernard A. Goodman
- Department of Environmental Research, Austrian Research Center Seibersdorf, 2444 Seibersdorf, Austria
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55
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Potapov AS, Nudnova EA, Domina GA, Kirpotina LN, Quinn MT, Khlebnikov AI, Schepetkin IA. Synthesis, characterization and potent superoxide dismutase-like activity of novel bis(pyrazole)-2,2'-bipyridyl mixed ligand copper(II) complexes. Dalton Trans 2009:4488-98. [PMID: 19488447 PMCID: PMC2806191 DOI: 10.1039/b900869a] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Eleven new complexes of Cu(II) chloride and nitrate with bis(pyrazol-1-yl)propane and bis[2-(pyrazol-1-yl)ethyl]ether ligands were prepared and characterized by spectral and electrochemical methods. X-Ray crystal structure determination of bis[2-(3,5-dimethylpyrazol-1-yl)ethyl]etherdinitratocopper revealed a hepta-coordinated structure with the bis(pyrazole) ligand coordinated in a tridentate NNO-fashion and both of the nitrate ions in a bidentate fashion. Reaction of Cu(II) nitrate complexes with 2,2'-bipyridyl led to the displacement of one of the nitrate ions into the outer sphere and the formation of mixed-ligand complexes. Mixed-ligand bipyridyl Cu(II) complexes demonstrated the highest superoxide dismutase (SOD)-like activity in a chemical superoxide anion-generating system, with IC(50) values in the low micromolar range. Density functional theory calculations showed that introduction of a bipypidyl ligand into the complexes dramatically lowered the lowest unoccupied molecular orbital (LUMO) energy level, which explains the increased SOD-like activity of these complexes compared to non-bipy species. These bipy complexes were also effective scavengers of reactive oxygen species generated by phagocytes (human neutrophils and murine bone marrow leukocytes) ex vivo. Thus, these bipy mixed-ligand complexes represent a promising class of SOD mimetics for future development.
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Affiliation(s)
- Andrei S. Potapov
- Department of Chemistry, Altai State Technical University, Barnaul 656038, Russia
| | - Evgenia A. Nudnova
- Department of Chemistry, Altai State Technical University, Barnaul 656038, Russia
| | - Galina A. Domina
- Department of Chemistry, Altai State Technical University, Barnaul 656038, Russia
| | - Liliya N. Kirpotina
- Department of Veterinary Molecular Biology, Montana State University, Bozeman, MT 59717, USA
| | - Mark T. Quinn
- Department of Veterinary Molecular Biology, Montana State University, Bozeman, MT 59717, USA
| | - Andrei I. Khlebnikov
- Department of Chemistry, Altai State Technical University, Barnaul 656038, Russia
| | - Igor A. Schepetkin
- Department of Veterinary Molecular Biology, Montana State University, Bozeman, MT 59717, USA
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56
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Sarkar S, Dhara PK, Nethaji M, Chattopadhyay P. Copper(II) complexes of tridentate SNO ligands: synthesis, characterization and crystal structure. J COORD CHEM 2009. [DOI: 10.1080/00958970802314951] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Sandipan Sarkar
- a Department of Chemistry , The University of Burdwan , Golapbag, Burdwan-713104, India
| | - Pulak K. Dhara
- a Department of Chemistry , The University of Burdwan , Golapbag, Burdwan-713104, India
| | - M. Nethaji
- b Department of Inorganic and Physical Chemistry , IISc., Bangalore–560012, India
| | - Pabitra Chattopadhyay
- a Department of Chemistry , The University of Burdwan , Golapbag, Burdwan-713104, India
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57
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Radovits T, Gerö D, Lin LN, Loganathan S, Hoppe-Tichy T, Szabó C, Karck M, Sakurai H, Szabó G. Improvement of aging-associated cardiovascular dysfunction by the orally administered copper(II)-aspirinate complex. Rejuvenation Res 2009; 11:945-56. [PMID: 18922047 DOI: 10.1089/rej.2008.0762] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Aging-associated nitro-oxidative stress causes tissue injury and activates proinflammatory pathways that play an important role in the pathogenesis of aging-associated cardiovascular dysfunction. It has been recently reported, that the copper(II)-aspirinate complex (CuAsp) exerts not only the well-known anti-inflammatory and platelet antiaggregating effects of aspirin, but, due to its superoxide dismutase mimetic activity, it acts as a potent antioxidant as well. In this study we investigated the effects of CuAsp on aging-associated myocardial and endothelial dysfunction. METHODS AND RESULTS Aging and young rats were treated for 3 weeks with vehicle, or with CuAsp (200 mg/kg per day per os). Left ventricular pressure-volume relations were measured by using a microtip pressure-volume conductance catheter, and indexes of contractility (e.g., slope of end-systolic pressure-volume relationships [ESPVR] [E(es)], and dP/dt(max) - end-diastolic volume [EDV]) were calculated. In organ bath experiments for isometric tension with isolated aortic rings, endothelium-dependent and -independent vasorelaxation were investigated by using acetylcholine and sodium nitroprusside. When compared to the young controls, aging rats showed impaired left ventricular contractility (E(es), 0.51 +/- 0.04 vs. 2.16 +/- 0.28 mmHg/microL; dP/dt(max) - EDV, 10.71 +/- 2.02 vs. 37.23 +/- 4.18 mmHg/sec per microL; p < 0.05) and a marked endothelial dysfunction (maximal relaxation to acetylcholine: 66.66 +/- 1.30 vs. 87.09 +/- 1.35%; p < 0.05). Treatment with CuAsp resulted in reduced nitro-oxidative stress, improved cardiac function (E(es), 1.21 +/- 0.17 vs. 0.51 +/- 0.04 mmHg/microL; dP/dt(max) - EDV, 23.40 +/- 3.34 vs. 10.71 +/- 2.02 mmHg/sec per microL; p < 0.05) and higher vasorelaxation to acetylcholine in aging animals (94.83 +/- 0.73 vs. 66.66 +/- 1.30%; p < 0.05). The treatment did not influence the cardiovascular functions of young rats. CONCLUSIONS Our results demonstrate that oxidative stress and inflammatory pathways contribute to the pathogenesis of cardiovascular dysfunction in the aging organism, which can be reversed by CuAsp.
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Affiliation(s)
- Tamás Radovits
- Experimental Laboratory of Cardiac Surgery, Department of Cardiac Surgery, University of Heidelberg, Heidelberg, Germany.
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58
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Balasubramanian V, Ezhevskaya M, Moons H, Neuburger M, Cristescu C, Van Doorslaer S, Palivan C. Structural characterization of a highly active superoxide-dismutase mimic. Phys Chem Chem Phys 2009; 11:6778-87. [DOI: 10.1039/b905593b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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59
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Fluorescence and Biological Evaluation of the La(III) and Eu(III) Complexes with 7-methoxychromone-3-carbaldehyde Benzoyl Hydrazone Schiff Base. J Fluoresc 2008; 19:409-18. [PMID: 18937060 DOI: 10.1007/s10895-008-0427-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Accepted: 10/07/2008] [Indexed: 10/21/2022]
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60
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Li Y, Yang ZY, Li TR. Synthesis, Characterization, Antioxidative Activity and DNA Binding Properties of the Copper(II), Zinc(II), Nickel(II) Complexes with 1,2-Di(4′-iminonaringenin)ethane. Chem Pharm Bull (Tokyo) 2008; 56:1528-34. [DOI: 10.1248/cpb.56.1528] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yong Li
- College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University
| | - Zheng-yin Yang
- College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University
| | - Tian-rong Li
- College of Chemistry and Chemical Engineering and State Key Laboratory of Applied Organic Chemistry, Lanzhou University
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61
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Fujimori T, Yasui H, Hiromura M, Sakurai H. Suppressive effect of orally administered copper(II)-aspirinate (Cu2(asp)4) complex on the generation of reactive oxygen species in the skin of animals subjected to UVA exposure. Exp Dermatol 2007; 16:746-52. [PMID: 17697147 DOI: 10.1111/j.1600-0625.2007.00595.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As reactive oxygen species (ROS) are involved in the pathogenesis of various diseases, superoxide dismutase (SOD) and its mimetic complexes have been intensively studied. Recently, we found that Cu(2)(aspirinate)(4) (Cu(2)(asp)(4)) has both in vitro and in vivo antioxidative activities. We investigated the suppressive effect of Cu(2)(asp)(4) on ROS generation in the skin of hairless mice that were orally administered Cu(2)(asp)(4) and followed by UVA exposure. The results were compared with those obtained from mice that were orally administered Cu(salicylate)(2) (Cu(sal)(2)) or Cu(acetate)(2), (Cu(ace)(2)) and followed by UVA exposure. After confirming that Cu(2)(asp)(4) suppressed ROS generation in the skin, we measured both SOD activity and metallothionein (MT) and SOD protein levels in the whole proteins extracted from the skin of ICR mice that were orally administered Cu(II) compounds. The Cu(2)Zn(2)-SOD activity was enhanced by the administration of Cu(II) compounds; however, no alterations in the protein levels of MT and SOD were observed. Metallokinetics of the paramagnetic Cu(II) species in the circulating blood of rats, as estimated by electron spin resonance (ESR), revealed that among the Cu(II) compounds, the residence time of the Cu(II) species from Cu(2)(asp)(4) was the longest. On the basis of these results, we conclude that Cu(2)(asp)(4) is an orally potent antioxidative compound that suppresses ROS generation in the skin. The residence time of Cu(II) in the blood and the enhanced SOD activity in the skin following the oral administration of Cu(2)(asp)(4) support this conclusion. Here, we propose that Cu(2)(asp)(4) may be used to protect the skin against ROS generation.
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Affiliation(s)
- Takako Fujimori
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, Japan
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62
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Kufelnicki A, Woźniczka M, Chęcińska L, Miernicka M, Budzisz E. Synthesis and structure of novel copper(II) complexes with pyrazole derived ligands and metal–ligand interaction in solution. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.12.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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63
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Li TR, Yang ZY, Wang BD. Synthesis, characterization and antioxidant activity of naringenin Schiff base and its Cu(II), Ni(II), Zn(II) complexes. Chem Pharm Bull (Tokyo) 2007; 55:26-8. [PMID: 17202696 DOI: 10.1248/cpb.55.26] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new ligand, naringenin-2-hydroxy benzoyl hydrazone (H(5)L), was prepared by condensation of naringenin with 2-hydroxy benzoyl hydrazine. Its Cu(II), Ni(II), Zn(II) complexes have also been synthesized and characterized on the basis of (1)H-NMR, IR, UV-Vis spectra, elemental analyses, molar conductivity and thermal analyses. The general formula of these complexes was M(H(3)L) [M=Cu(II), Ni(II) and Zn(II)]. In addition, the antioxidant activities (superoxide and hydroxyl radical) of the free ligand and its complexes were determined in vitro. These compounds were found to possess potent antioxidant activity and be better than standard antioxidants like vitamin C and mannitol. In particular, the Cu(II) complex displayed excellent activity on the superoxide radical.
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Affiliation(s)
- Tian-Rong Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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64
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Ferrer EG, López Tévez LL, Baeza N, Correa MJ, Okulik N, Lezama L, Rojo T, Castellano EE, Piro OE, Williams PAM. Molecular structure, bioavailability and bioactivity of [Cu(o-phen)2(cnge)](NO3)2.2H2O and [Cu(o-phen)(cnge)(H2O)(NO3)2] complexes. J Inorg Biochem 2007; 101:741-9. [PMID: 17331582 DOI: 10.1016/j.jinorgbio.2006.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2006] [Revised: 12/20/2006] [Indexed: 10/23/2022]
Abstract
Two Cu(II) complexes with cyanoguanidine (cnge) and o-phenanthroline, [Cu(o-phen)(2)(cnge)](NO(3))(2).2H(2)O (1) and [Cu(o-phen)(cnge)(H(2)O)(NO(3))(2)] (2), have been synthesized using different experimental techniques and characterized by elemental analyses, FTIR, diffuse and UV-vis spectra and EPR and magnetic moment measurements techniques. The crystal structures of both complexes were solved by X-ray diffraction methods. Complex (1) crystallizes in the monoclinic space group C2/c with a=12.621(5), b=31.968(3), c=15.39(1)A, beta=111.68(4) degrees, and Z=8 and complex (2) in the monoclinic space group P2(1)/n with a=10.245(1), b=13.923(2), c=12.391(2)A, beta=98.07(1) degrees, and Z=4. The environments of the copper(II) center are trigonal bipyramidal (TBP) for [Cu(o-phen)(2)(cnge)](2+) and an elongated octahedron for [Cu(o-phen)(cnge)(H(2)O)(NO(3))(2)]. Solution studies have been performed to determine the species distribution. The superoxide dismutase (SOD) activities of both complexes have also been tested in order to determine if these compounds mimic the enzymatic action of the enzyme SOD that protects cells against peroxide radicals.
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Affiliation(s)
- Evelina G Ferrer
- Centro de Química Inorgánica (CEQUINOR), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 962, 1900 La Plata, Argentina
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65
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Valigura D, Moncol J, Korabik M, Púčeková Z, Lis T, Mroziński J, Melník M. New Dimeric Copper(II) Complex [Cu(5-MeOsal)2(μ-nia)(H2O)]2 with Magnetic Exchange Interactions through H-Bonds. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600477] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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