1
|
Paci C, Iberite F, Arrico L, Vannozzi L, Parlanti P, Gemmi M, Ricotti L. Piezoelectric nanocomposite bioink and ultrasound stimulation modulate early skeletal myogenesis. Biomater Sci 2022; 10:5265-5283. [PMID: 35913209 DOI: 10.1039/d1bm01853a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the significant progress in bioprinting for skeletal muscle tissue engineering, new stimuli-responsive bioinks to boost the myogenesis process are highly desirable. In this work, we developed a printable alginate/Pluronic-based bioink including piezoelectric barium titanate nanoparticles (nominal diameter: ∼60 nm) for the 3D bioprinting of muscle cell-laden hydrogels. The aim was to investigate the effects of the combination of piezoelectric nanoparticles with ultrasound stimulation on early myogenic differentiation of the printed structures. After the characterization of nanoparticles and bioinks, viability tests were carried out to investigate three nanoparticle concentrations (100, 250, and 500 μg mL-1) within the printed structures. An excellent cytocompatibility was confirmed for nanoparticle concentrations up to 250 μg mL-1. TEM imaging demonstrated the internalization of BTNPs in intracellular vesicles. The combination of piezoelectric nanoparticles and ultrasound stimulation upregulated the expression of MYOD1, MYOG, and MYH2 and enhanced cell aggregation, which is a crucial step for myoblast fusion, and the presence of MYOG in the nuclei. These results suggest that the direct piezoelectric effect induced by ultrasound on the internalized piezoelectric nanoparticles boosts myogenesis in its early phases.
Collapse
Affiliation(s)
- Claudia Paci
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Federica Iberite
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Lorenzo Arrico
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Lorenzo Vannozzi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| | - Paola Parlanti
- Istituto Italiano di Tecnologia, Center for Materials Interfaces, Electron Crystallography, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Mauro Gemmi
- Istituto Italiano di Tecnologia, Center for Materials Interfaces, Electron Crystallography, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy. .,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
| |
Collapse
|
2
|
Trucco D, Riacci L, Vannozzi L, Manferdini C, Arrico L, Gabusi E, Lisignoli G, Ricotti L. Primers for the Adhesion of Gellan Gum-Based Hydrogels to the Cartilage: A Comparative Study. Macromol Biosci 2022; 22:e2200096. [PMID: 35817025 DOI: 10.1002/mabi.202200096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/06/2022] [Indexed: 11/09/2022]
Abstract
A stable adhesion to the cartilage is a crucial requisite for hydrogels used for cartilage regeneration. Indeed, a weak interface between the tissue and the implanted material may produce a premature detachment and thus the failure of the regeneration processes. Fibrin glue, cellulose nanofibers and catecholamines have been proposed in the state-of-the-art as primers to improve the adhesion. However, no studies focused on a systematic comparison of their performance. This work aims to evaluate the adhesion strength between ex vivo cartilage specimens and polysaccharide hydrogels (gellan gum and methacrylated gellan gum), by applying the mentioned primers as intermediate layer. Results show that the fibrin glue and the cellulose nanofibers improve the adhesion strength, while catecholamines do not guarantee reaching a clinically acceptable value. Stem cells embedded in gellan gum hydrogels reduce the adhesion strength when fibrin glue is used as a primer, being anyhow still sufficient for in vivo applications. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Diego Trucco
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Laura Riacci
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| | - Lorenzo Vannozzi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| | - Cristina Manferdini
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Lorenzo Arrico
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| | - Elena Gabusi
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Gina Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Via di Barbiano, 1/10, Bologna, 40136, Italy
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy.,Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, Pisa, 56127, Italy
| |
Collapse
|
3
|
Pelosi C, Arrico L, Zinna F, Wurm FR, Di Bari L, Tinè MR. A circular dichroism study of the protective role of polyphosphoesters polymer chains in polyphosphoester-myoglobin conjugates. Chirality 2022; 34:1257-1265. [PMID: 35713334 PMCID: PMC9544571 DOI: 10.1002/chir.23486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/08/2022]
Abstract
Protein‐polymer conjugates are a blooming class of hybrid systems with high biomedical potential. Despite a plethora of papers on their biomedical properties, the physical–chemical characterization of many protein‐polymer conjugates is missing. Here, we evaluated the thermal stability of a set of fully‐degradable polyphosphoester‐protein conjugates by variable temperature circular dichroism, a common but powerful technique. We extensively describe their thermodynamic stability in different environments (in physiological buffer or in presence of chemical denaturants, e.g., acid or urea), highlighting the protective role of the polymer in preserving the protein from denaturation. For the first time, we propose a simple but effective protocol to achieve useful information on these systems in vitro, useful to screen new samples in their early stages.
Collapse
Affiliation(s)
- Chiara Pelosi
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Frederik R Wurm
- Sustainable Polymer Chemistry (SPC), Department of Molecules and Materials, MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, Enschede, Netherlands
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Maria R Tinè
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| |
Collapse
|
4
|
Arrico L, Stolfi C, Marafini I, Monteleone G, Demartis S, Bellinvia S, Viti F, McNulty M, Cabani I, Falezza A, Di Bari L. Inhomogeneous Diastereomeric Composition of Mongersen Antisense Phosphorothioate Oligonucleotide Preparations and Related Pharmacological Activity Impairment. Nucleic Acid Ther 2022; 32:312-320. [PMID: 35263186 PMCID: PMC9416542 DOI: 10.1089/nat.2021.0089] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Mongersen is a 21-mer antisense oligonucleotide designed to downregulate Mothers against decapentaplegic homolog 7 (SMAD7) expression to treat Crohn's disease. Mongersen was manufactured in numerous batches at different scales during several years of clinical development, which all appeared identical, using common physicochemical analytical techniques, while only phosphorous-31 nuclear magnetic resonance (31P-NMR) in solution showed marked differences. Close-up analysis of 27 mongersen batches revealed marked differences in SMAD7 downregulation in a cell-based assay. Principal component analysis of 31P-NMR profiles showed strong correlation with SMAD7 downregulation and, therefore, with pharmacological efficacy in vitro. Mongersen contains 20 phosphorothioate (PS) linkages, whose chirality (Rp/Sp) was not controlled during manufacturing. A different diastereomeric composition throughout batches would lead to superimposable analytical data, but to distinct 31P-NMR profiles, as indeed we found. We tentatively suggest that this may be the origin of different biological activity. As similar manifolds are expected for other PS-based oligonucleotides, the protocol described here provides a general method to identify PS chirality issues and a chemometric tool to score each preparation for this elusive feature.
Collapse
Affiliation(s)
- Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Carmine Stolfi
- Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata," Rome, Italy
| | - Irene Marafini
- Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata," Rome, Italy
| | - Giovanni Monteleone
- Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata," Rome, Italy
| | | | | | | | | | | | | | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| |
Collapse
|
5
|
Martinez A, Arrico L, benetti C, Di Bari L, Della-Negra O, Godart E, Dutasta JP, Jean M, Pascal S, Long A, Vanthuyne N, Insuasty A, Antonetti E, Nava P, Cotelle Y. Circularly Polarized Luminescence of Encaged Eu(III) and Tb(III) Complexes Controlled by an Inherently Chiral Remote Unit. NEW J CHEM 2022. [DOI: 10.1039/d2nj02360a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A molecular cage-based approach to obtain enantiopure lanthanide complexes with circular polarized luminescence (CPL) activities is presented. Hemicryptophane endohedral complexes were designed by functionalizing the molecular cage with pyridine-2,6-dipicolinamide coordinating...
Collapse
|
6
|
Arrico L, Benetti C, Di Bari L. Cover Feature: Combining Lanthanides with PyBox Ligands: A Simple Route to Circularly Polarized Light Emitters (ChemPhotoChem 9/2021). CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Costanza Benetti
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
7
|
Affiliation(s)
- Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Costanza Benetti
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
8
|
Masi M, Sautua F, Zatout R, Castaldi S, Arrico L, Isticato R, Pescitelli G, Carmona MA, Evidente A. Phaseocyclopentenones A and B, Phytotoxic Penta- and Tetrasubstituted Cyclopentenones Produced by Macrophomina phaseolina, the Causal Agent of Charcoal Rot of Soybean in Argentina. J Nat Prod 2021; 84:459-465. [PMID: 33492968 DOI: 10.1021/acs.jnatprod.0c01287] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two new penta- and tetrasubstituted cyclopentenones, named phaseocyclopentenones A and B (1 and 2), together with guignardone A (3), were isolated from Macrophomina phaseolina cultures. The phytopathogenic fungus was isolated from infected soybean tissues showing charcoal rot symptoms in Argentina. Charcoal rot is a devastating disease considering that soybean is one of the main legumes cultivated in the world. Phaseocyclopentenones A and B were characterized by 1D and 2D 1H and 13C NMR spectroscopic and HRESIMS spectrometric data and chemical methods as 4-benzoyl-3,4,5-trihydroxy-2-phenylcyclopent-2-enone and 3,5-dihydroxy-2,4-diphenylcyclopent-2-enone, respectively. The relative configuration of phaseocyclopentenones A and B was assigned by 1H and NOESY NMR methods, while their absolute configurations were assigned by electronic circular dichroism methods. When assayed on a nonhost plant (Solanum lycopersicum L.) by the leaf puncture assay, phaseocyclopentenones A and B and guignardone A showed phytotoxic activity, while only 1 and 2 were toxic when tested on cuttings of the same plant. No phytotoxicity or antifungal activity was detected for the three compounds on the host plant soybean (Glycine max L.) and against some of its fungal pathogens, namely, Cercospora nicotianae and Colletotrichum truncatum, also isolated from infected soybean plants in Argentina.
Collapse
Affiliation(s)
- Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Francisco Sautua
- Facultad de Agronomía, Cátedra de Fitopatología, Universidad de Buenos Aires, C1053 CABA Buenos Aires, Argentina
| | - Roukia Zatout
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri, Constantine1, BP, 325 Route de Aïn El Bey, Constantine 25017, Algeria
| | - Stefany Castaldi
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Rachele Isticato
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Marcelo Anibal Carmona
- Facultad de Agronomía, Cátedra de Fitopatología, Universidad de Buenos Aires, C1053 CABA Buenos Aires, Argentina
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| |
Collapse
|
9
|
Hananel U, Schwartz G, Paiss G, Arrico L, Zinna F, Di Bari L, Cheshnovsky O, Markovich G. Time-resolved circularly polarized luminescence of Eu 3+ -based systems. Chirality 2020; 33:124-133. [PMID: 33378790 DOI: 10.1002/chir.23293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/10/2020] [Accepted: 12/15/2020] [Indexed: 11/09/2022]
Abstract
Chiral Eu3+ -based systems are frequently studied via circularly polarized luminescence spectroscopy. The emission lifetimes of each circular polarization, however, are virtually always ignored, because in a homogeneous sample of emitters, there should be no difference between the two. However, we show that in less robust Eu3+ complex structures, as in the chiral complex Eu (facam)3 , a difference in the lifetimes of the two circularly polarized emission components arises due to heterogeneity of the complexes. In this case, each species within the sample could have different degrees of circularly polarized luminescence and decay rates at certain emission lines. The superposition of the emission components of the various chiral species leads to an overall difference in decay rate between the two circular polarizations. Such a difference is also shown for Eu3+ -doped chiral TbPO4 ·D2 O nanocrystals. We believe that this kind of measurement could be a unique tool for determining the homogeneity of a lanthanide-based chiral system, where other methods might fail in this task.
Collapse
Affiliation(s)
- Uri Hananel
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| | - Gal Schwartz
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| | - Guy Paiss
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| | - Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Francesco Zinna
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | | | - Gil Markovich
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
10
|
Affiliation(s)
- Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
11
|
Macii F, Perez-Arnaiz C, Arrico L, Busto N, Garcia B, Biver T. Alcian blue pyridine variant interaction with DNA and RNA polynucleotides and G-quadruplexes: changes in the binding features for different biosubstrates. J Inorg Biochem 2020; 212:111199. [DOI: 10.1016/j.jinorgbio.2020.111199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 12/19/2022]
|
12
|
Dee C, Zinna F, Kreidt E, Arrico L, Rodríguez-Rodríguez A, Platas-Iglesias C, Di Bari L, Seitz M. Circularly polarized luminescence of enantiopure carboline-based europium cryptates under visible light excitation. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2020.01.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
13
|
Arrico L, De Rosa C, Di Bari L, Melchior A, Piccinelli F. Effect of the Counterion on Circularly Polarized Luminescence of Europium(III) and Samarium(III) Complexes. Inorg Chem 2020; 59:5050-5062. [PMID: 32186182 PMCID: PMC7997384 DOI: 10.1021/acs.inorgchem.0c00280] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
Each enantiopure
europium(III) and samarium(III) nitrate and triflate
complex of the ligand L, with L = N,N′-bis(2-pyridylmethylidene)-1,2-(R,R + S,S)-cyclohexanediamine ([LnL(tta)2]·NO3 and [LnL(tta)2(H2O)]·CF3SO3, where tta = 2-thenoyltrifluoroacetylacetonate)
has been synthesized and characterized from a spectroscopic point
of view, using a chiroptical technique such as electronic circular
dichroism (ECD) and circularly polarized luminescence (CPL). In all
cases, both ligands are capable of sensitizing the luminescence of
both metal ions upon absorption of light around 280 and 350 nm. Despite
small differences in the total luminescence (TL) and ECD spectra,
the CPL activity of the complexes is strongly influenced by a concurrent
effect of the solvent and counterion. This particularly applies to
europium(III) complexes where the CPL spectra in acetonitrile can
be described as a weighed linear combination of the CPL spectra in
dichloromethane and methanol, which show nearly opposite signatures
when their ligand stereochemistries are the same. This phenomenon
could be related to the presence of equilibria interconverting solvated,
anion-coordinated complexes and isomers differing by the relative
orientation of the tta ligands. The difference between some bond lengths
(M–N bonds, in particular) in the different species could be
at the basis of such an unusual CPL activity. Triflate ([EuL(tta)2(H2O)]·CF3SO3) and nitrate ([EuL(tta)2]·NO3) complexes, with L = N,N′-bis(2-pyridylmethylidene)-1,2-(R,R or S,S)-cyclohexanediamine, where tta = 2-thenoyltrifluoroacetylacetonate,
show nearly opposite circularly polarized luminescence (CPL) signatures
when dissolved in dichloromethane (DCM) or methanol (MeOH), even though
their ligand stereochemistries remain unchanged. The presence (in
DCM) and absence (in MeOH) of the counterion in the inner coordination
sphere determine a strong change of the CPL activity of the relative
europium(III) complex.
Collapse
Affiliation(s)
- Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy
| | - Chiara De Rosa
- Luminescent Materials Laboratory, DB, Università di Verona, and INSTM, University of Verona Research Unit, Strada Le Grazie 15, 37134 Verona, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy
| | - Andrea Melchior
- Laboratorio di Tecnologie Chimiche, Dipartimento Politecnico di Ingegneria e Architettura, Università di Udine, via Cotonificio 108, 33100 Udine, Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory, DB, Università di Verona, and INSTM, University of Verona Research Unit, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
14
|
Dhbaibi K, Favereau L, Srebro-Hooper M, Quinton C, Vanthuyne N, Arrico L, Roisnel T, Jamoussi B, Poriel C, Cabanetos C, Autschbach J, Crassous J. Modulation of circularly polarized luminescence through excited-state symmetry breaking and interbranched exciton coupling in helical push-pull organic systems. Chem Sci 2020; 11:567-576. [PMID: 32206274 PMCID: PMC7069512 DOI: 10.1039/c9sc05231c] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 11/19/2019] [Indexed: 11/21/2022] Open
Abstract
π-Helical push-pull dyes were prepared and their (chir)optical properties were investigated both experimentally and computationally. Specific fluorescent behaviour of bis-substituted system was observed with unprecedented solvent effect on the intensity of circularly polarized luminescence (CPL, dissymmetry factor decreasing from 10-2 to 10-3 with an increase in solvent polarity) that was linked to a change in symmetry of chiral excited state and suppression of interbranched exciton coupling. The results highlight the potential of CPL spectroscopy to study and provide a deeper understanding of electronic photophysical processes in chiral π-conjugated molecules.
Collapse
Affiliation(s)
- Kais Dhbaibi
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
- University of Gabès , Faculty of Science of Gabès , Zrig , 6072 Gabès , Tunisia
| | - Ludovic Favereau
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
| | - Monika Srebro-Hooper
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland .
| | - Cassandre Quinton
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
| | - Nicolas Vanthuyne
- Aix Marseille University , CNRS , Centrale Marseille , iSm2 , Marseille , France
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale , University of Pisa , via Moruzzi 13 , 56124 , Pisa , Italy
| | - Thierry Roisnel
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
| | - Bassem Jamoussi
- Department of Environmental Sciences , Faculty of Meteorology, Environment and Arid Land Agriculture , King Abdulaziz University , 21589 Jeddah , Saudi Arabia
| | - Cyril Poriel
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
| | - Clément Cabanetos
- MOLTECH-Anjou , CNRS UMR 6200 , University of Angers , 2 Bd Lavoisier , 49045 Angers , France
| | - Jochen Autschbach
- Department of Chemistry , University at Buffalo , State University of New York , Buffalo , NY 14260 , USA
| | - Jeanne Crassous
- Univ Rennes , CNRS , ISCR - UMR 6226 , ScanMAT - UMS 2001 , F-35000 Rennes , France . ;
| |
Collapse
|
15
|
Voci S, Zinna F, Arrico L, Grass S, Bouffier L, Lacour J, Di Bari L, Sojic N. Chiroptical detection of a model ruthenium dye in water by circularly polarized-electrochemiluminescence. Chem Commun (Camb) 2020; 56:5989-5992. [DOI: 10.1039/d0cc01571g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate the possibility to detect selectively the two single enantiomers of a model [Ru(bpy)3]2+-based dye by circularly polarized-electrochemiluminescence (CP-ECL).
Collapse
Affiliation(s)
- Silvia Voci
- Univ. Bordeaux
- Bordeaux INP
- CNRS
- Institut des Sciences Moléculaires
- UMR 5255
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- University of Pisa
- via G. Moruzzi 13
- Pisa
- Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- University of Pisa
- via G. Moruzzi 13
- Pisa
- Italy
| | - Stéphane Grass
- Department of Organic Chemistry
- University of Geneva
- Quai Ernest Ansermet 30
- 1211 Geneva 4
- Switzerland
| | - Laurent Bouffier
- Univ. Bordeaux
- Bordeaux INP
- CNRS
- Institut des Sciences Moléculaires
- UMR 5255
| | - Jérôme Lacour
- Department of Organic Chemistry
- University of Geneva
- Quai Ernest Ansermet 30
- 1211 Geneva 4
- Switzerland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- University of Pisa
- via G. Moruzzi 13
- Pisa
- Italy
| | - Neso Sojic
- Univ. Bordeaux
- Bordeaux INP
- CNRS
- Institut des Sciences Moléculaires
- UMR 5255
| |
Collapse
|
16
|
Migliorini R, Comberiati AM, Pacella F, Monsellato R, Arrico L. Anisometropia and isoametropia associated with microstrabismus: effectiveness of late anti-amblyopia treatment. Clin Ter 2019; 170:e339-e344. [PMID: 31612190 DOI: 10.7417/ct.2019.2158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE Outcomes Research Study on patients suffering from anisometropia or isoametropia associated with amblyopia and microstrabismus to show the impact of late occlusion treatment on therapeutic prognosis. MATERIALS AND METHODS Enrollment of all the eligible patients presenting to recruiting centers at the Department of Pediatric Ophthalmology and Strabismus - Ophthalmological Clinic - Policlinico Umberto I - Rome. At baseline, all patients will undergo an opthalmologic evaluation. Recruited patients will be followed for a 2-year period. Our test group was composed of 31 patients, 11 with bilateral and 20 with monolateral amblyopia, totalling 42 amblyopic eyes, and it was assessed - always by the same examiner - with the help of the following orthoptic examinations: Wirt test, Irvine-Jampolsky test (4 dioptre fixation task), Visuscope, Cover Test, Bagolini striated glasses, and Worth lights test. We assessed pre-post treatment variations observed in the overall group of amblyopic eyes, regardless of the differences between RE and LE. OUTCOMES Of the 31 children, 58.1% were males and 41.9% female, average age between 6 and 14 years. Of the 42 amblyopic eyes, after daily occlusion of 8 hours ± 2.30 SD, we recorded an improvement of 71.4%, and visual acuity increased from an average of 0.4 LogMAR to 0.1 LogMAR. CONCLUSION Late anti-amblyopic occlusion treatment proved effective in the long term for children 6 to 12 years, specifically regarding visual acuity, fixation, stereopsis, and binocular collaboration in patients suffering from anisometropia or isoametropia and microstrabismus.
Collapse
Affiliation(s)
- R Migliorini
- Department of Sense Organs, University of Rome "Sapienza", Rome, Italy
| | - A M Comberiati
- Department of Sense Organs, University of Rome "Sapienza", Rome, Italy
| | - F Pacella
- Department of Sense Organs, University of Rome "Sapienza", Rome, Italy
| | - R Monsellato
- Department of Sense Organs, University of Rome "Sapienza", Rome, Italy
| | - L Arrico
- Department of Sense Organs, University of Rome "Sapienza", Rome, Italy
| |
Collapse
|
17
|
Schaack C, Arrico L, Sidler E, Górecki M, Di Bari L, Diederich F. Helicene Monomers and Dimers: Chiral Chromophores Featuring Strong Circularly Polarized Luminescence. Chemistry 2019; 25:8003-8007. [DOI: 10.1002/chem.201901248] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/26/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Cédric Schaack
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - Eric Sidler
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - François Diederich
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| |
Collapse
|
18
|
Zinna F, Voci S, Arrico L, Brun E, Homberg A, Bouffier L, Funaioli T, Lacour J, Sojic N, Di Bari L. Circularly‐Polarized Electrochemiluminescence from a Chiral Bispyrene Organic Macrocycle. Angew Chem Int Ed Engl 2019; 58:6952-6956. [DOI: 10.1002/anie.201901303] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/07/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Silvia Voci
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Elodie Brun
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alexandre Homberg
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Laurent Bouffier
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Jérôme Lacour
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Neso Sojic
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
19
|
Zinna F, Voci S, Arrico L, Brun E, Homberg A, Bouffier L, Funaioli T, Lacour J, Sojic N, Di Bari L. Circularly‐Polarized Electrochemiluminescence from a Chiral Bispyrene Organic Macrocycle. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901303] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Silvia Voci
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Elodie Brun
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Alexandre Homberg
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Laurent Bouffier
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Tiziana Funaioli
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Jérôme Lacour
- Department of Organic ChemistryUniversity of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Neso Sojic
- Univ. BordeauxBordeaux INPCNRSInstitut des Sciences Moléculaires, UMR 5255 16 avenue Pey-Berland 33607 Pessac France
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| |
Collapse
|
20
|
Abstract
We report a rare example of near infrared circularly polarized luminescence (NIR-CPL) in the 920–1050 nm region associated with the f–f transitions of Yb diketonate complexes bearing chiral ancillary ligands.
Collapse
Affiliation(s)
- Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- Pisa
- Italy
| |
Collapse
|
21
|
Arrico L, Migliorini R, Bianchini D, Salducci M, Collini S, Malagola R. Ocular motility alterations in orbital fractures: pre-post evaluation in maxillofacial surgical treatment. G Chir 2018; 39:363-367. [PMID: 30563599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
PURPOSE The study aims to investigate the ability of maxillofacial surgery to reduce strabismus and improve ocular clinical symptomatology in patients with fracture of the medial or lateral floor of the orbit, or both, and to evaluate such abilities relative to the temporal distance between trauma and surgery. PATIENTS AND METHODS 25 patients with traumatic diplopia were evaluated by CT, Goldman manual field of view, Hess-Lancaster test, eye examination and orthoptic examination, before and after surgery. RESULTS We observed: a statistically significant reduction of the deviation angle, both from close and long distance (P = 0.0054 and P = 0.0051 respectively) with a 38% reduction of the deviation from short distance and 54% from afar; a regression of diplopia in 20% of the surgically treated cases (CL from 0 to 39%), significant at the Mc Nemar test; a negative correlation with the time elapsed between the onset of the fracture and maxillofacial surgery (R = -0.26), even if the analysis did not show a statistical significance of the data (P = 0.2). However, it is evident that the maximum improvement is observed only in cases operated within 5 months of the trauma, while the failures (worsening or persistence of diplopia) were observed only in the cases operated later. CONCLUSION We can state that the intervention reduces strabismus and improves ocular symptomatology, as it statistically significantly reduces cases of diplopia; furthermore, it would seem preferable to intervene early, especially when damage to a muscular structure is suspected, even if the data do not allow definitive conclusions in this regard.
Collapse
|
22
|
Pescitelli G, Lüdeke S, Chamayou AC, Marolt M, Justus V, Górecki M, Arrico L, Di Bari L, Islam MA, Gruber I, Enamullah M, Janiak C. Broad-Range Spectral Analysis for Chiral Metal Coordination Compounds: (Chiro)optical Superspectrum of Cobalt(II) Complexes. Inorg Chem 2018; 57:13397-13408. [PMID: 30339376 DOI: 10.1021/acs.inorgchem.8b01932] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chiroptical broad-range spectral analysis extending from UV to mid-IR was employed to study a family of Co(II) N-(1-(aryl)ethyl)salicylaldiminato Schiff base complexes with pseudotetrahedral geometry associated with chirality-at-metal of the Δ/Λ type. While common chiral organic compounds have well-separated absorption and circular dichroism spectra (CD) in the UV/vis and IR regions, chiral Co(II) complexes feature an almost unique continuum of absorption and CD bands, which cover in sequence the UV, visible, near-IR (NIR), and IR regions of the electromagnetic spectrum. They can be collected in a single (chiro)optical superspectrum ranging from the UV (230 nm, 5.4 eV) to the mid-IR (1000 cm-1, 0.12 eV), which offers a fingerprint of the structure and stereochemistry of the metal complexes. Each region of the superspectrum contributes to one piece of information: the NIR-CD region, in combination with TDDFT calculations, allows a reliable assignment of the metal-centered chirality; the UV-CD region facilitates the analysis of the Δ/Λ diastereomeric equilibrium in solution; and the IR-VCD region contains a combination of low-lying metal-centered electronic states (LLES) and ligand-centered vibrations and displays characteristically enhanced and monosignate VCD bands. Circular dichroism in the NIR and IR regions is crucial to reveal the presence of d-d transitions of the Co(II) core which, due to the electric-dipole forbidden character, would be otherwise overlooked in the corresponding absorption spectra.
Collapse
Affiliation(s)
- Gennaro Pescitelli
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | - Steffen Lüdeke
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | | | - Marija Marolt
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | - Viktor Justus
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | - Marcin Górecki
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy.,Institute of Organic Chemistry , Polish Academy of Sciences , 01-224 Warsaw , Poland
| | - Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | | | - Irina Gruber
- Institute of Inorganic Chemistry and Structural Chemistry , University of Düsseldorf , D-40225 Düsseldorf , Germany
| | - Mohammed Enamullah
- Department of Chemistry , Jahangirnagar University , Dhaka - 1342 , Bangladesh
| | - Christoph Janiak
- Institute of Inorganic Chemistry and Structural Chemistry , University of Düsseldorf , D-40225 Düsseldorf , Germany
| |
Collapse
|
23
|
Kreidt E, Arrico L, Zinna F, Di Bari L, Seitz M. Circularly Polarised Luminescence in Enantiopure Samarium and Europium Cryptates. Chemistry 2018; 24:13556-13564. [DOI: 10.1002/chem.201802196] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/15/2018] [Indexed: 01/04/2023]
Affiliation(s)
- Elisabeth Kreidt
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Francesco Zinna
- Department of Organic Chemistry; University of Geneva; 30 quai Ernest Ansermet 1211 Geneva 4 Switzerland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Michael Seitz
- Institute of Inorganic Chemistry; University of Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| |
Collapse
|
24
|
Leonzio M, Bettinelli M, Arrico L, Monari M, Di Bari L, Piccinelli F. Circularly Polarized Luminescence from an Eu(III) Complex Based on 2-Thenoyltrifluoroacetyl-acetonate and a Tetradentate Chiral Ligand. Inorg Chem 2018; 57:10257-10264. [DOI: 10.1021/acs.inorgchem.8b01480] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Marco Leonzio
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Marco Bettinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Magda Monari
- Dipartimento di Chimica ‘‘G. Ciamician’’, Università di Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale, via Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
25
|
Malagola R, Collini S, Troisi F, Giannotti R, Arrico L. Peribulbar anesthesia in sclero-retinal surgery: two quadrants vs single injection. G Chir 2018; 39:227-231. [PMID: 30039790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE To evaluate the advantage of peribulbar anesthesia in two quadrants (infero-temporal and upper nasal) vs single injection technique (infero-temporal) for scleral rhegmatogenous retinal detachment surgery (RRD). PATIENTS AND METHODS 57 patients, aged between 33 and 75 years (57.01 ± 8.68), waiting for retinal detachment surgery, were randomized in two groups: a group S (29 patients), with single quadrant injection technique and a group C (28 patients) with two quadrants injection. Patients in Group S were injected in two quadrants with a 10 ml mixture containing Mepivacaine 2% 5 ml and Ropivacaine 0.75% 5 ml, with hyaluronidase 10 IU/ ml. Patients in group C were injected with the same anesthetic mixture in one quadrant. Number of additional injection, during surgery, in two groups, were reported. Pain was tested with VAS (Verbal Analogue Scale 0-10) after regional block, when muscles were insulated, during scleral buckling positioning, when conjunctive was closed and 6, 12, 24 hours after surgery. RESULTS The need for a second peribulbar injection of anesthetic occurred in 9 patients of group C (32.14%); further injection was necessary in 1 patient (3.57%) of group S during scleral buckling (VAS = 7), statistically significant (p <0.05). Postoperative VAS 6 - 12 - 24 hours after surgery was not significant. CONCLUSIONS The peribulbar anesthesia may be proposed in scleral surgery of retinal detachment; the injection in two quadrants secured solid and satisfactory anesthesia, increasing the outcome of retinal surgery in loco-regional anesthesia.
Collapse
|
26
|
Górecki M, Carpita L, Arrico L, Zinna F, Di Bari L. Chiroptical methods in a wide wavelength range for obtaining Ln 3+ complexes with circularly polarized luminescence of practical interest. Dalton Trans 2018; 47:7166-7177. [PMID: 29774898 DOI: 10.1039/c8dt00865e] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We studied enantiopure chiral trivalent lanthanide (Ln3+ = La3+, Sm3+, Eu3+, Gd3+, Tm3+, and Yb3+) complexes with two fluorinated achiral tris(β-diketonate) ligands (HFA = hexafluoroacetylacetonate and TTA = 2-thenoyltrifluoroacetonate), incorporating a chiral bis(oxazolinyl)pyridine (PyBox) unit as a neutral ancillary ligand, by the combined use of optical and chiroptical methods, ranging from UV to IR both in absorption and circular dichroism (CD), and including circularly polarized luminescence (CPL). Ultimately, all the spectroscopic information is integrated into a total and a chiroptical super-spectrum, which allows one to characterize a multidimensional chemical space, spanned by the different Ln3+ ions, the acidity and steric demand of the diketone and the chirality of the PyBox ligand. In all cases, the Ln3+ ions endow the systems with peculiar chiroptical properties, either allied to f-f transitions or induced by the metal onto the ligand. In more detail, we found that Sm3+ complexes display interesting CPL features, which partly superimpose and partly integrate the more common Eu3+ properties. Especially, in the context of security tags, the pair Sm/Eu may be a winning choice for chiroptical barcoding.
Collapse
Affiliation(s)
- Marcin Górecki
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Moruzzi 13, 56124 Pisa, Italy.
| | | | | | | | | |
Collapse
|
27
|
Mayans J, Font-Bardia M, Di Bari L, Arrico L, Zinna F, Pescitelli G, Escuer A. Cover Feature: From Mesocates to Helicates: Structural, Magnetic and Chiro-Optical Studies on Nickel(II) Supramolecular Assemblies Derived from Tetradentate Schiff Bases (Chem. Eur. J. 30/2018). Chemistry 2018. [DOI: 10.1002/chem.201801627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Júlia Mayans
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN UB); Universitat de Barcelona; Martí i Franques 1-11 Barcelona 08028 Spain
| | - Mercè Font-Bardia
- Departament de Mineralogia, Cristal⋅lografia i Dipòsits Minerals and Unitat de Difracció de R-X. Centre Científic i Tecnològic (CCiTUB); Universitat de Barcelona; Martí Franqués s/n Barcelona 08028 Spain
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chímica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chímica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Francesco Zinna
- Dipartimento di Chimica e Chímica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chímica Industriale; Università di Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Albert Escuer
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN UB); Universitat de Barcelona; Martí i Franques 1-11 Barcelona 08028 Spain
| |
Collapse
|
28
|
Leonzio M, Melchior A, Faura G, Tolazzi M, Bettinelli M, Zinna F, Arrico L, Di Bari L, Piccinelli F. A chiral lactate reporter based on total and circularly polarized Tb(iii) luminescence. NEW J CHEM 2018. [DOI: 10.1039/c7nj04640e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Lactate anion signaling by a chiral Tb(iii) complex based on total and circularly polarized luminescence.
Collapse
Affiliation(s)
- Marco Leonzio
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| | - Andrea Melchior
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Georgina Faura
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Marilena Tolazzi
- Dipartimento Politecnico di Ingegneria e Architettura
- Laboratorio di Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- 56124 Pisa
- Italy
| | - Fabio Piccinelli
- Luminescent Materials Laboratory
- DB
- Università di Verona, and INSTM
- UdR Verona
- 37134 Verona
| |
Collapse
|
29
|
Arrico L, Angelici G, Di Bari L. Taking advantage of Co(ii) induced enhanced VCD for the fast and sensitive determination of enantiomeric excess. Org Biomol Chem 2017; 15:9800-9803. [DOI: 10.1039/c7ob02380d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Large Co(ii)-induced VCD signals provide a method for determining the enantiomeric excess of α-amino acids. This strategy can be followed for building new VCD protocols.
Collapse
Affiliation(s)
- Lorenzo Arrico
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica Industriale
- Università di Pisa
- I-56124 Pisa
- Italy
| |
Collapse
|
30
|
Migliorini R, Fratipietro M, Comberiati AM, Pattavina L, Arrico L. Reliability study of biometrics "do not contact" in myopia. Clin Ter 2014; 165:e401-3. [PMID: 25524194 DOI: 10.7417/ct.2014.1781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE The aim of the study is a comparison between the actually achieved after surgery condition versus the expected refractive condition of the eye as calculated via a biometer. MATERIALS AND METHODS The study was conducted in a random group of 38 eyes of patients undergoing surgery by phacoemulsification. RESULTS The mean absolute error was calculated between the predicted values from the measurements with the optical biometer and those obtained in the post-operative error which was at around 0.47% CONCLUSIONS Our study shows results not far from those reported in the literature, and in relation, to the mean absolute error is among the lowest values at 0.47 ± 0.11 SEM.
Collapse
Affiliation(s)
- R Migliorini
- Department of Ophthalmological Sciences, 1st Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - M Fratipietro
- Department of Ophthalmological Sciences, 1st Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - A M Comberiati
- Department of Ophthalmological Sciences, 1st Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - L Pattavina
- Department of Ophthalmological Sciences, 1st Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - L Arrico
- Department of Ophthalmological Sciences, 1st Faculty of Medicine, "Sapienza" University of Rome, Italy
| |
Collapse
|
31
|
Arrico L, Giannotti R, Ganino C, Lenzi T, Malagola R. Intracranial aneurysm and diplopia due to oculomotor nerve palsy: pre- and post-operative study. Clin Ter 2014; 165:e258-62. [PMID: 25203340 DOI: 10.7417/ct.2014.1740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE The aim of this study was to analyze ocular signs and symptoms in patients with oculomotor nerve palsy due to compression exerted by an intracranial aneurysm. We compare the results of two surgical treatments (microsurgical clipping against endovascular embolisation) in relation with the size of the aneurysm and the time between diagnosis and therapeutical approach. MATERIALS AND METHODS The study involved 16 patients. Each patient underwent an ophthalmological evaluation at the baseline and immediately, 6 months and 1 year after surgery, including the study of eyelid ptosis, ocular motility, pupil function, non-concomitant strabismus, diplopia and visual acuity. RESULTS The best recovery was seen in the patients undergoing aneurysm clipping. Palpebral ptosis was the first sign to appear and the first to regress, followed by pupil and medial rectus function. Recovery of the other muscles was slower and often incomplete. CONCLUSIONS Ophthalmological examination is essential for the correct treatment and follow-up of patients with intracranial aneurysms.
Collapse
Affiliation(s)
- L Arrico
- Department of Sense Organs, Ist. Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - R Giannotti
- Department of Sense Organs, Ist. Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - C Ganino
- Department of Sense Organs, Ist. Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - T Lenzi
- Department of Sense Organs, Ist. Faculty of Medicine, "Sapienza" University of Rome, Italy
| | - R Malagola
- Department of Sense Organs, Ist. Faculty of Medicine, "Sapienza" University of Rome, Italy
| |
Collapse
|
32
|
Migliorini R, Malagola R, Mafrici M, Spena R, Arrico L. Temporary diplopia upon hyoscine-N-butyl bromide administration: case report. Clin Ophthalmol 2013; 7:947-9. [PMID: 23723687 PMCID: PMC3666875 DOI: 10.2147/opth.s43680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Hyoscine-N-butyl bromide is a widely used antispasmodic belonging to the belladonna alkaloid class of semisynthetic quaternary ammonium compounds. These compounds exert a spasmolytic action on the smooth muscles of the bile-gastrointestinal tract, genitourinary tract, salivary glands (xerostomia), and also on the visual apparatus - in particular, the irido-ciliary complex. As a consequence, they provoke collateral effects such as mydriasis and accommodation disturbances. We report the case of a 23-year-old woman who complained of not only “dry mouth” but also “cloudy vision” and a “diplopia”, both of temporary type, 2 hours after oral administration of hyoscine-N-butyl bromide.
Collapse
Affiliation(s)
- R Migliorini
- Department of Sense Organs, University of Rome “La Sapienza”, Rome, Italy
| | - R Malagola
- Department of Sense Organs, University of Rome “La Sapienza”, Rome, Italy
| | - M Mafrici
- Department of Sense Organs, University of Rome “La Sapienza”, Rome, Italy
| | - R Spena
- Department of Sense Organs, University of Rome “La Sapienza”, Rome, Italy
| | - L Arrico
- Department of Sense Organs, University of Rome “La Sapienza”, Rome, Italy
- Correspondence: L Arrico, Department of Sense Organs, University of Rome “La Sapienza”, Via del Policlinico 155, 00161 Rome, Italy Tel +39 335 690 0888 Fax +39 06 557 6577 Email
| |
Collapse
|
33
|
Migliorini R, Fratipietro M, Segnalini A, Arrico L. Persistent vertical diplopia after cataract surgery: a case report. Clin Ter 2013; 164:e31-3. [PMID: 23455749 DOI: 10.7417/ct.2013.1518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Diplopia is an event that can occur following cataract surgery, although its rate of occurrence is limited and ranges from 0.67% to 0.85%. The authors present a case of vertical diplopia arising after peribulbar anaesthesia for cataract surgery in a 78-year-old woman. Diplopia appeared at distance in primary position, while at near there was binocular single vision. Stereopsis was present at the Lang I - II Test, but the Wirth Test was incomplete. Although in the literature the frequency of these "accidents" is very limited, we think it is relevant to emphasize the need to perform pre-operative routine using a careful orthoptic examination along with a thorough medical, especially strabological, history.
Collapse
Affiliation(s)
- R Migliorini
- Department of Ophthalmology, Sapienza University, Rome, Italy.
| | | | | | | |
Collapse
|
34
|
Steigerwalt RD, Pascarella A, Arrico L, Librando A, Plateroti R, Plateroti AM, Plateroti P, Nebbioso M. Idiopathic juxtafoveal retinal telangiectasis and retinal macroaneurysm treated with indocyanine green dye-enhanced photocoagulation. Panminerva Med 2012; 54:93-96. [PMID: 23241941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This case report presents the use of indocyanine green dye-enhanced photocoagulation (ICG-DEP) for the treatment of idiopathic juxtafoveal retinal telangiectasis and a retinal macroaneurysm. A 35-year-old male with 20/20 vision had been followed for 5 years for a retinal macroaneurysm with retinal telangiectasis outside the macular area. He then presented with a recently decreased vision in his right. He had macular edema with a new area of idiopathic juxtafoveal retinal telangiectasis. After 4 focal argon laser treatments, angiographic closure of the lesions was not obtained and the retinal edema remained. After 3 sessions of ICG-DEP, the lesions were closed and the edema absorbed. The 810 nm infrared laser with ICG-DEP should be considered for the treatment of idiopathic juxtafoveal retinal telangiectasis and retinal macroaneurysms. In this case the procedure appears to be safe and well tolerated. It may allow for more direct energy absorption than that of the argon laser to these types of retinal lesions with better tissue closure.
Collapse
|
35
|
Malagola R, Arrico L, Migliorini R, D'Ambrosio EM, Grenga R. Ocular traumatology in children. A retrospective study. G Chir 2012; 33:423-428. [PMID: 23140931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
UNLABELLED OBIECTIVE: This study assesses the descriptive epidemiology of children with eye injuries presenting to the Emergency Department of a non exclusive Paediatric University Hospital - First Division of Ophthalmology of "Sapienza" University of Rome - over a period of 12 years. STUDY DESIGN A retrospective long term study of 12 years. PARTICIPANTS All paediatric patients (up to 14 years of age) presenting with ocular injuries and hospitalized. METHODS It was analyzed the incidence of the ocular trauma among males and females. The situation in which the trauma occurred, type of trauma (contusive or perforating), the presence of endo-bulbar foreign bodies, visual acuity outcome. RESULTS There were 203 patients who presented to the Emergency Department in the period examined. Contusive traumas were 130 (90 males, 40 females). The perforating trauma were 73 (63 males, 10 females). The presence of an endo-bulbar foreign body was registered in 10 patients. A detailed analysis of the causes of the trauma is therefore provided. We evidence that males were almost exclusively involved in sport traumas (60 males versus 2 females), and in second instance accidental trauma is almost equally divided between two genders. CONCLUSIONS Our retrospective study presents the paediatric cases of a non exclusive Paediatric University Hospital where 3% of ocular traumas requiring hospitalization were in children. Therefore our data could be useful in order to bring about the necessary preventive measures to minimize paediatric eye injuries.
Collapse
|
36
|
Malagola R, Giannotti R, Arrico L. OCT: Macular thickness in insulin-dependent patients without evident retinopathy: a preliminary study. Clin Ter 2012; 163:e393-e396. [PMID: 23306751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVES Aim of this study was to evaluate whether OCT would be able to show subclinical retinal modifications in diabetic patients not showing clinical alterations during routine comprehensive eye examinations. Furthermore, we analyzed whether there is a seat of topographical macular predilection for the alterations and the connection between their onset and the duration of the disease. MATERIALS AND METHODS 39 Caucasian subjects, aged between 13 and 33 years, were enrolled. 20 of them were healthy subjects, and 19 were patients affected by insulin-dependent type I diabetes mellitus. OCT scans were performed on all subjects, and macular thickness maps were obtained. Macular thickness was compared between diabetic and healthy subjects. Diabetic patients were divided in two subgroups, on the basis of disease duration (<=/> 16 years), and compared with two age-matched subgroups of healthy subjects. RESULTS According to medical literature, macular thickness is significantly greater in men than in women. No further statistically significant differences could be detected in macular thickness if the disease has been lasting for 16 years or less. On the other hand, a statistically significant increase was detected in temporal macular thickness in patients affected by diabetes for more than 16 years. CONCLUSIONS In patients affected by insulin-dependent diabetes for more than 16 years OCT detects early subclinical alterations in peripheral temporal macular region.
Collapse
Affiliation(s)
- R Malagola
- Department of Ophthalmology, University of Roma La Sapienza, Italy, Rome.
| | | | | |
Collapse
|
37
|
Arrico L, Migliorini R, Giannotti R, Collini S, Malagola R. Clinical manifestations due to pharmacological interactions in pediatric ophthalmic surgery: topical drugs and general anaesthesia. G Chir 2012; 33:331-334. [PMID: 23095562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
INTRODUCTION The authors consider the type and the incidence of the adverse effects due to the interaction between ophthalmic drugs and general anaesthesia in pediatric ophthalmic surgery. PATIENTS AND METHODS The experience included 176 general anaesthesia in 100 children aged between 9,2 months and 11,4 years (mean age 4,9 years). RESULTS In the 100 patients we reported: 4 cases (2.7% general anaesthesias) of sinus tachycardia with heart rhythm varying between 170 and 180 beats per minute (3.6%); 5 cases of sinus bradycardia, varying between 60 and 70 beats per minute (3.3%); 3 cases of bronchospasm (2%); 2 cases of psychomotor agitation/disturbances in pre-convulsive state after anaesthesia (1.3%); 3 cases of arterial hypotension (60-70 mmHg) (2%); 7 cases of skin rush around neck and chest (4.6%); 1 case of prolonged apnoea (0.6%). CONCLUSIONS The clinical manifestations, principally on the cardio-circulatory and nervous system are subjected to critical revision, to foresee the pharmacological interferences and therefore to prepare the necessary measure of medical treatment.
Collapse
Affiliation(s)
- L Arrico
- Ophthalmology Department, "Sapienza" University of Rome, Italy
| | | | | | | | | |
Collapse
|
38
|
Salvatore S, Carnevale C, Infussi R, Arrico L, Mafrici M, Plateroti AM, Vingolo EM. [Waardenburg Syndrome: a review of literature and case reports]. Clin Ter 2012; 163:e85-e94. [PMID: 22555841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Waadernburg syndrome (WS) is an autosomal dominant disease clinically and genetically heterogeneous. It is characterized by non-progressive sensorineuronal hearing loss of variable degree and anomalous pigmentation (of the eyes, skin and stria vascularis of cochlear duct) caused by melanocytes absence. The syndrome is caused by mutations in genes that regulate the melanocytes differentiation from the neural crest during embriogenetic development. This study will review the literature on WS and explain more in detail the ocular findings in WS, while reporting new findings on two newly diagnosed cases.
Collapse
Affiliation(s)
- S Salvatore
- Dipartimento di Science Oftalmologiche, Universita' La Sapienza, Polo Pontino, Italia.
| | | | | | | | | | | | | |
Collapse
|
39
|
Taverniti L, Di Staso S, Arrico L, Giuffrè I, Recupero SM. Effect of brimonidine on patients undergoing uncontrolled IOP with beta-blockers. Acta Ophthalmol Scand Suppl 2003; 236:54. [PMID: 12390143 DOI: 10.1034/j.1600-0420.80.s236.33.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The authors evaluated the effect of the replacement of beta-blockers with brimonidine drops in patients taking beta-blockers only or with dorzolamide, having IOP > 20 mmHg. The study was divided into two sections: one group treated with brimonidine b.i.d. (23 patients) and the other group treated with brimonidine + dorzolamide b.i.d. (17 patients). The effect of the substitution showed after 90 days of treatment with a reduction of 8.59 +/- 1.2 mmHg (P < 0.001) in the first group and 6.1 +/- 1.7 mmHg (P < 0.001) in the second group. Three patients in the first group and four patients in the second group presented minor adverse effects which did not justify discontinuation of treatment. Brimonidine was effective treatment as a substitute for beta-blockers only when associated with dorzolamide.
Collapse
|
40
|
Arrico L, Taverniti L, Donati S, Recupero SM. A retrospective study on the effects of laser trabeculoplasty in open-angle glaucoma: a 10-year follow-up. Acta Ophthalmol Scand Suppl 2001:57-8. [PMID: 11235541 DOI: 10.1111/j.1600-0420.2000.tb01108.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L Arrico
- Institute of Ophthalmology, La Sapienza University, Rome
| | | | | | | |
Collapse
|
41
|
Arrico L, Bizzarri B, Fiore F, Trani M, Missiroli A. Preliminary results of a study of the follow-up of nine glaucomatous patients treated with preservative-free eye drops. Acta Ophthalmol Scand Suppl 2001:55. [PMID: 11235539 DOI: 10.1111/j.1600-0420.2000.tb01106.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L Arrico
- Institute of Ophthalmology, La Sapienza University, Rome
| | | | | | | | | |
Collapse
|
42
|
Taverniti L, Di Staso S, Arrico L, D'Ubaldo E, Grenga R. The ibopamine test in patients affected by monolateral pseudoexfoliative glaucoma. Acta Ophthalmol Scand Suppl 2001:9-11. [PMID: 11235548 DOI: 10.1111/j.1600-0420.2000.tb01077.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L Taverniti
- La Sapienza University of Rome, Institute of Ophthalmology, 1st Division Eye Clinic
| | | | | | | | | |
Collapse
|
43
|
Abstract
PURPOSE The aim of the present preliminary study, performed on post-surgical hypotony, was the evaluation of the effects on ocular hypotony of the concomitant administration of ibopamine and corticosteroids. METHODS 14 patients (11 males-3 females; mean age 47 years) with ocular hypotony following several vitroretinal surgical intervention in different districts, were enrolled. The inclusion criteria were: mean IOP during tonometric curve equal or lower than 6 mmHg, stable IOP for at least 60 days, ongoing treatment with 0.1% dexamethasone (4 times/day), successful surgical intervention, 2% ibopamine (4 times/day) was added to the corticosteroid therapy for 30-60 days. RESULTS Before ibopamine administration, mean IOP was 4.07 mmHg SD 1.71. At the end of the treatment period, mean IOP increased by 89% in comparison to baseline values (+ 3.64 mmHg SD 5.57). This difference was statistically significant (paired t = 2.39; P = 0.03). One month after ibopamine-treatment discontinuation, mean IOP decreased to pre-treatment values (4.86 mmHg SD 3.50). CONCLUSIONS The results of the present study, although preliminary, suggest the possibility of a future pharmacological treatment of ocular hypotony with ibopamine, whose rationale is based on the increase of aqueous humor production by stimulating the D1 dopaminergic receptor.
Collapse
Affiliation(s)
- M Virno
- Department of Ocular Physio-Pharmacology, Eye Clinic, University La Sapienza, Rome, Italy
| | | | | | | |
Collapse
|