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Reactivity of CORM [RuII(CO)3Cl2{N-(N1-methylbenzimidazole)}] with aminoacids. Synthesis, and analytical and structural study for the new binuclear cis-[RuI(CO)2(N-MBI)(μ2-O,O-BAL)]2 sawhorse complex at solid state and in solution. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bonechi C, Donati A, Tamasi G, Pardini A, Volpi V, Leone G, Consumi M, Magnani A, Rossi C. Metal-Ligand Recognition Index Determination by NMR Proton Relaxation Study. Molecules 2019; 24:E1050. [PMID: 30884870 PMCID: PMC6472049 DOI: 10.3390/molecules24061050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 11/29/2022] Open
Abstract
In this study, we developed and validated a new proposed parameter quantifying the interaction strength between natural and/or synthetic molecules with paramagnetic metal ions. The Metal ion Recognition Index, Miri, is a quantitative parameter to describe the proton environment and to define their involvement in the inner and/or outer sphere of the paramagnetic metal ion. The method is based on the analysis of NMR proton spin-lattice relaxation rates of a specific ligand in both the diamagnetic and paramagnetic conditions. The proposed procedure is also useful to calculate the ligand proton spin-lattice relaxation rate in the paramagnetic bound conditions, which is typically very difficult to determine experimentally. Miri was used to compare the ligand proton involvement toward different paramagnetic species, in particular the Copper(II)-Piroxicam system. Copper(II)-Piroxicam complex is one of the most active anti-inflammatory and anti-arthritic species. Miri provides an opportunity to improve our knowledge of metal-ligand complexes that play a fundamental role in bioinorganic interactions.
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Affiliation(s)
- Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Alessandro Donati
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Alessio Pardini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
| | - Vanessa Volpi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, 53100 Siena, Italy.
- Centre for Colloid and Surface Science (CSGI), University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
- Operative Unit, University of Siena, Campo Verde, Calabria, 53100 Siena, Italy.
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Bonechi C, Consumi M, Matteucci M, Tamasi G, Donati A, Leone G, Menichetti L, Kusmic C, Rossi C, Magnani A. Distribution of Gadolinium in Rat Heart Studied by Fast Field Cycling Relaxometry and Imaging SIMS. Int J Mol Sci 2019; 20:E1339. [PMID: 30884846 PMCID: PMC6471734 DOI: 10.3390/ijms20061339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/27/2019] [Accepted: 03/13/2019] [Indexed: 11/23/2022] Open
Abstract
Research on microcirculatory alterations in human heart disease is essential to understand the genesis of myocardial contractile dysfunction and its evolution towards heart failure. The use of contrast agents in magnetic resonance imaging is an important tool in medical diagnostics related to this dysfunction. Contrast agents significantly improve the imaging by enhancing the nuclear magnetic relaxation rates of water protons in the tissues where they are distributed. Gadolinium complexes are widely employed in clinical practice due to their high magnetic moment and relatively long electronic relaxation time. In this study, the behavior of gadolinium ion as a contrast agent was investigated by two complementary methods, relaxometry and secondary ion mass spectrometry. The study examined the distribution of blood flow within the microvascular network in ex vivo Langendorff isolated rat heart models, perfused with Omniscan® contrast agent. The combined use of secondary ion mass spectrometry and relaxometry allowed for both a qualitative mapping of agent distribution as well as the quantification of gadolinium ion concentration and persistence. This combination of a chemical mapping and temporal analysis of the molar concentration of gadolinium ion in heart tissue allows for new insights on the biomolecular mechanisms underlying the microcirculatory alterations in heart disease.
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Affiliation(s)
- Claudia Bonechi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Marco Consumi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
| | - Marco Matteucci
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Gabriella Tamasi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Alessandro Donati
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Gemma Leone
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
| | - Luca Menichetti
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Claudia Kusmic
- CNR Institute of Clinical Physiology, Area di Ricerca "S. Cataldo", Via Giuseppe Moruzzi 1, 56124 Pisa, Italy.
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- Center for Colloids and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto Fiorentino, Firenze, Italy.
| | - Agnese Magnani
- Department of Biotechnology, Chemistry and Pharmacy, Via Aldo Moro 2, 53100 Siena, Italy.
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti 9, 50121 Firenze, Italy.
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El-Asmy HA, Butler IS, Mouhri ZS, Jean-Claude BJ, Emmam M, Mostafa SI. Synthesis, characterization and DNA interaction studies of new complexes containing 2-mercaptobenzothiazole and different dinitrogen or phosphorous aromatic donors. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.10.041] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Shabana AA, Butler IS, Gilson DF, Jean-Claude BJ, Mouhri ZS, Mostafa MM, Mostafa SI. Synthesis, characterization, anticancer activity and DNA interaction studies of new 2-aminobenzothiazole complexes; crystal structure and DFT calculations of [Ag(Habt)2]ClO4. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.09.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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El-Morsy FA, Jean-Claude BJ, Butler IS, El-Sayed SA, Mostafa SI. Synthesis, characterization and anticancer activity of new zinc(II), molybdate(II), palladium(II), silver(I), rhodium(III), ruthenium(II) and platinum(II) complexes of 5,6-diamino-4-hydroxy-2-mercaptopyrimidine. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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