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Kotsidi M, Gorgolis G, Pastore Carbone MG, Anagnostopoulos G, Paterakis G, Poggi G, Manikas A, Trakakis G, Baglioni P, Galiotis C. Preventing colour fading in artworks with graphene veils. Nat Nanotechnol 2021; 16:1004-1010. [PMID: 34211165 DOI: 10.1038/s41565-021-00934-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/20/2021] [Indexed: 06/13/2023]
Abstract
Modern and contemporary art materials are generally prone to irreversible colour changes upon exposure to light and oxidizing agents. Graphene can be produced in thin large sheets, blocks ultraviolet light, and is impermeable to oxygen, moisture and corrosive agents; therefore, it has the potential to be used as a transparent layer for the protection of art objects in museums, during storage and transportation. Here we show that a single-layer or multilayer graphene veil, produced by chemical vapour deposition, can be deposited over artworks to protect them efficiently against colour fading, with a protection factor of up to 70%. We also show that this process is reversible since the graphene protective layer can be removed using a soft rubber eraser without causing any damage to the artwork. We have also explored a complementary contactless graphene-based route for colour protection that is based on the deposition of graphene on picture framing glass for use when the direct application of graphene is not feasible due to surface roughness or artwork fragility. Overall, the present results are a proof of concept of the potential use of graphene as an effective and removable protective advanced material to prevent colour fading in artworks.
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Affiliation(s)
- M Kotsidi
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
- Department of Chemical Engineering, University of Patras, Patras, Greece
| | - G Gorgolis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
| | - M G Pastore Carbone
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
| | - G Anagnostopoulos
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
| | - G Paterakis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
- Department of Chemical Engineering, University of Patras, Patras, Greece
| | - G Poggi
- CSGI & Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - A Manikas
- Department of Chemical Engineering, University of Patras, Patras, Greece
| | - G Trakakis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece
| | - P Baglioni
- CSGI & Department of Chemistry, University of Florence, Sesto Fiorentino, Italy
| | - C Galiotis
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology - Hellas (FORTH/ ICE-HT), Patras, Greece.
- Department of Chemical Engineering, University of Patras, Patras, Greece.
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Poggi G, Parmentier A, Nourinaeini S, De Luca F. Detection of acidic paper recovery after alkaline nanoparticle treatment by 2D NMR relaxometry. Magn Reson Chem 2020; 58:902-912. [PMID: 32526806 DOI: 10.1002/mrc.5063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 06/04/2020] [Accepted: 06/07/2020] [Indexed: 06/11/2023]
Abstract
Cellulose-based artefacts are highly prone to degradation, especially in the presence of acidic compounds, which trigger the depolymerization of cellulose chains and lead to a loss in the original mechanical resistance of the material. Calcium hydroxide nanoparticles dispersed in organic solvent have been recently proposed for the deacidification of cellulose-based artworks. In this work, changes induced on paper by a deacidification treatment, following an acidification bath, were studied by nuclear magnetic resonance (NMR) relaxometry and by the so-called NMR diffraction of water trapped in the cellulose network. The deacidification treatment modifies intrachain and interchain bonds in hydrolyzed and degraded cellulose, leading to a buffered cellulose network configuration, which is similar to that characterizing the untreated reference sample in terms of relaxation parameters. Overall, calcium hydroxide nanoparticles are demonstrated effective in hindering the degradation of cellulose induced by acids and ageing in strong environmental conditions, even from the standpoint of cellulose network arrangement. It is worth noting, too, that the unilateral NMR device used for the relaxation measurements may represent a powerful tool for the preservation of cellulose-based artworks because it allows for the monitoring of the conservation status of cellulose in a completely non-invasive manner.
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Affiliation(s)
- G Poggi
- Department of Chemistry and CSGI, University of Florence, Sesto Fiorentino (Florence), Italy
| | | | - S Nourinaeini
- Department of Physics, Sapienza University of Rome, Rome, Italy
| | - F De Luca
- Department of Physics, Sapienza University of Rome, Rome, Italy
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Xu Q, Poggi G, Resta C, Baglioni M, Baglioni P. Grafted nanocellulose and alkaline nanoparticles for the strengthening and deacidification of cellulosic artworks. J Colloid Interface Sci 2020; 576:147-157. [PMID: 32416547 DOI: 10.1016/j.jcis.2020.05.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 03/25/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 11/17/2022]
Abstract
HYPOTHESIS Strongly degraded cellulosic artworks usually need deacidification and consolidation. Alkaline nanoparticles are known to be effective in neutralizing the acidity, while cellulose nanocrystals have the potential to be used as compatible and effective strengthening agents. EXPERIMENTS We have grafted cellulose nanocrystals with oleic acid using a 1'1-carbonyldiimidazole-mediated procedure, to increase their dispersibility in organic solvents, and synthesized Ca(OH)2 or CaCO3 nanoparticles via a solvothermal process. Grafted nanocellulose and alkaline nanoparticles were used to prepare ethanol-based "hybrids". Prior to the application, the physico-chemical properties of nanocellulose dispersions and "hybrids" were studied by rheology and small-angle X-ray scattering. FINDINGS Cellulose nanocrystals were effectively grafted and stably dispersed in ethanol. It was shown that the use of ethanol as a dispersing medium, and the addition of alkaline nanoparticles act in a synergistic way, increasing the interactions between grafted cellulose nanocrystals, leading to the formation of clusters. These dispersions are thixotropic, a behavior particularly appealing to conservation purposes, since they can be applied in the liquid state, or, when a more confined application is required, they can be applied in a gel-like state. As a result of the application, an improvement in the mechanical properties of paper and an increase of pH were obtained.
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Affiliation(s)
- Q Xu
- CSGI and Chemistry Department, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - G Poggi
- CSGI and Chemistry Department, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
| | - C Resta
- CSGI and Chemistry Department, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - M Baglioni
- CSGI and Chemistry Department, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - P Baglioni
- CSGI and Chemistry Department, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy.
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4
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Thomas S, Reynolds D, Morrall MCHJ, Limond J, Chevignard M, Calaminus G, Poggi G, Bennett E, Frappaz D, Slade D, Gautier J, McQuilton P, Massimino M, Grundy R. The European Society of Paediatric Oncology Ependymoma-II program Core-Plus model: Development and initial implementation of a cognitive test protocol for an international brain tumour trial. Eur J Paediatr Neurol 2019; 23:560-570. [PMID: 31182404 DOI: 10.1016/j.ejpn.2019.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 11/24/2022]
Abstract
It is increasingly accepted that survival alone is an inadequate measure of the success of childhood brain tumour treatments. Consequently, there is growing emphasis on capturing quality of survival. Ependymomas are the third most frequently occurring brain tumours in childhood and present significant clinical challenges. European Society of Paediatric Oncology Ependymoma II is a comprehensive international program aiming to evaluate outcomes under different treatment regimens and improve diagnostic accuracy. Importantly, there has been agreement to lower the age at which children with posterior fossa ependymoma undergo focal irradiation from three years to either eighteen months or one year of age. Hitherto radiotherapy in Europe had been reserved for children over three years due to concerns over adverse cognitive outcomes following irradiation of the developing brain. There is therefore a duty of care to include longitudinal cognitive follow-up and this has been agreed as an essential trial outcome. Discussions between representatives of 18 participating European countries over 10 years have yielded European consensus for an internationally accepted test battery for follow-up of childhood ependymoma survivors. The 'Core-Plus' model incorporates a two-tier approach to assessment by specifying core tests to establish a minimum dataset where resources are limited, whilst maintaining scope for comprehensive assessment where feasible. The challenges leading to the development of the Core-Plus model are presented alongside learning from the initial stages of the trial. We propose that this model could provide a solution for future international trials addressing both childhood brain tumours and other conditions associated with cognitive morbidity.
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Affiliation(s)
- S Thomas
- Department of Paediatric Neuropsychology, Nottingham Children's Hospital, Queen's Medical Centre, Nottingham, NG7 2UH, UK; Child Brain Tumour Research Centre, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK.
| | - D Reynolds
- Department of Paediatric Neuropsychology, Nottingham Children's Hospital, Queen's Medical Centre, Nottingham, NG7 2UH, UK; Child Brain Tumour Research Centre, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - M C H J Morrall
- Department of Paediatric Neuropsychology, Leeds General Infirmary, Leeds, LS1 3EX, UK
| | - J Limond
- Psychology, College of Life and Environmental Sciences, Washington Singer Laboratories, University of Exeter, Perry Road, EX4 4QG, UK
| | - M Chevignard
- Rehabilitation Department for Children with Acquired Neurological Injury, Saint Maurice Hospitals, 14, rue du Val d'Osne, 94410, Saint Maurice, France; Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, 75006 Paris, France
| | - G Calaminus
- University Children's Hospital Bonn, Adenauerallee 119, 53113, Bonn, Germany
| | - G Poggi
- Neuro-Oncological Rehabilitation Unit- IRCCS E. Medea, Bosisio Parini, Lecco, Italy
| | - E Bennett
- Department of Paediatric Neuropsychology, Nottingham Children's Hospital, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - D Frappaz
- Institut d'Hématologie Oncologie pédiatrique, Lyon, France
| | - D Slade
- Cancer Research UK Clinical Trials Unit (CRCTU), Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - J Gautier
- Institut d'Hématologie Oncologie pédiatrique, Lyon, France
| | - P McQuilton
- Department of Paediatric Neuropsychology, Nottingham Children's Hospital, Queen's Medical Centre, Nottingham, NG7 2UH, UK; Child Brain Tumour Research Centre, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK
| | - M Massimino
- Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - R Grundy
- Child Brain Tumour Research Centre, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, NG7 2UH, UK
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Camerini R, Poggi G, Chelazzi D, Ridi F, Giorgi R, Baglioni P. The carbonation kinetics of calcium hydroxide nanoparticles: A Boundary Nucleation and Growth description. J Colloid Interface Sci 2019; 547:370-381. [PMID: 30974252 DOI: 10.1016/j.jcis.2019.03.089] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 02/27/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 10/27/2022]
Abstract
HYPOTHESIS The reaction of Ca(OH)2 with CO2 to form CaCO3 (carbonation process) is of high interest for construction materials, environmental applications and art preservation. Here, the "Boundary Nucleation and Growth" model (BNGM) was adopted for the first time to consider the effect of the surface area of Ca(OH)2 nanoparticles on the carbonation kinetics. EXPERIMENTS The carbonation of commercial and laboratory-prepared particles' dispersions was monitored by Fourier Transform Infrared Spectroscopy, and the BNGM was used to analyze the data. The contributions of nucleation and growth of CaCO3 were evaluated separately. FINDINGS During carbonation the boundary regions of the Ca(OH)2 particles are densely populated with CaCO3 nuclei, and transform early with subsequent thickening of slab-like regions centered on the original boundaries. A BNGM limiting case equation was thus used to fit the kinetics, where the transformation rate decreases exponentially with time. The carbonation rate constants, activation energies, and linear growth rate were calculated. Particles with larger size and lower surface area show a decrease of the rate at which the non-nucleated grains between the boundaries transform, and an increase of the ending time of Ca(OH)2 transformation. The effect of temperature on the carbonation kinetics and on the CaCO3 polymorphs formation was evaluated.
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Affiliation(s)
- R Camerini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - G Poggi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - D Chelazzi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - F Ridi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - R Giorgi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy
| | - P Baglioni
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (FI), Italy.
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Meroni S, Cavatorta C, Lecchi M, Montin E, Oprandi C, Pecori E, Spreafico F, Diletto B, Biassoni V, Schiavello E, Arrigoni F, Poggi G, Massimino M, Mainardi L, Verderio P, Pignoli E, Gandola L. 50. Retrospective study of late radiation damages after focal radiotherapy for childhood brain tumors. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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7
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Pedrazzoli P, Bacciocchi G, Da Prada GA, Preti P, Pavesi L, Poggi G, Locatelli F, Rosti V, Robustelli della Cuna G. Evaluation of the Effect of Medroxyprogesterone Acetate on Bone Marrow Progenitor Cells. Tumori 2018; 77:399-402. [PMID: 1838216 DOI: 10.1177/030089169107700507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Various clinical studies have demonstrated that high-dose medroxyprogesterone acetate (HD-MPA) can reduce hematologic toxicity in patients receiving chemotherapy for advanced solid tumors. The underlying mechanism(s) of this action is still unknown. A direct effect of MPA on hemopoietic cells has been postulated, but in vitro studies have given contradictory results. To clarify the biologic activity of MPA on hemopoiesis we have evaluated in vitro growth of pluripotent and committed progenitor cells from bone marrow cells which were preincubated in vitro with various doses of MPA and subsequently treated with or without the S-phase-specific drug arabinoside-cytosine (Ara-C). Four healthy subjects and 8 patients with advanced stage solid tumors with no bone marrow involvement were studied. In our experimental model we did not observe any effect of MPA on Ara-C killing of progenitor cells from either bone marrow mononuclear cells or bone marrow mononuclear cells depleted of T-lymphocytes and adherent cells. These results suggest that MPA does not act directly (or indirectly through the production of cytokines by T-lymphocytes and/or monocytes and macrophages) on bone marrow progenitors. In addition, the supposed mechanism of rendering stem cells less susceptible to the insult of cytotoxic drugs by lowering the number of progenitors in the S-phase has been ruled out by cell kinetic studies.
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Affiliation(s)
- P Pedrazzoli
- Divisione di Oncologia, Fondazione Clinica del Lavoro, Pavia, Italy
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8
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Fabris D, Gramegna F, Cicerchia M, Marchi T, Barlini S, Piantelli S, Bini M, Bruno M, Casini G, Cinausero M, D’Agostino M, Degerlier M, Gelli N, Mantovani G, Morelli L, Mabiala J, Olmi A, Pasquali G, Poggi G, Valdré S, Vardaci E, Fotina O, Kravchuk V, Colonna M, Ono A. Pre-equilibrium emission to study clustering in nuclei. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201716300016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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9
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Piantelli S, Casini G, Maurenzig P, Olmi A, Barlini S, Bini M, Pasquali G, Pastore G, Poggi G, Stefanini A, Valdrè S, Ademard G, Auger L, Bougault R, Bonnet E, Borderie B, Chbihi A, Frankland J, Gruyer D, Lopez O, LeNeindre N, Parlog M, Rivet M, Vient E, Rosato E, Spadaccini G, Vigilante M, Bruno M, Marchi T, Morelli L, Cinausero M, Degerlier M, Gramegna F, Kordyasz A, Kozik T, Twarog T, Alba R, Maiolino C, Santonocito D, Galichet E. FAZIA applications. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611710005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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10
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Meroni S, Montin E, Arrigoni F, Cavatorta C, Poggi G, Oprandi C, Pecori E, Schiavello E, Diletto B, Massimino M, Mainardi L, Pignoli E, Gandola L. EP-1531: Image registration framework to investigate children neurocognitive outcome after focal brain irradiation. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41523-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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Piantelli S, Casini G, Maurenzig P, Olmi A, Barlini S, Bini M, Carboni S, Pasquali G, Poggi G, Stefanini A, Valdré S, Bougault R, Bonnet E, Borderie B, Chbihi A, Frankland J, Gruyer D, Lopez O, Le Neindre N, Parlog M, Rivet MF, Vient E, Rosato E, Spadaccini G, Vigilante M, Bruno M, Marchi T, Morelli L, Cinausero M, Degerlier M, Gramegna F, Kozik T, Twarog T, Alba R, Maiolino C, Santonocito D. Isospin transport phenomena and odd-even staggering in 84Kr+ 112,124Sn collisions at 35 AMeV. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Marchi T, Gramegna F, Fabris D, Degerlier M, Fotina O, Kravchuk V, D’Agostino M, Morelli L, Appannababu S, Baiocco G, Barlini S, Bini M, Brondi A, Bruno M, Casini G, Cinausero M, Gelli N, Moro R, Olmi A, Pasquali G, Piantelli S, Poggi G, Valdré S, Vardaci E. Pre-equilibrium emission and its possible relation to α-clustering in nuclei. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Pastore G, Pasquali G, Le Neindre N, Ademard G, Barlini S, Bini M, Bonnet E, Borderie B, Bougault R, Casini G, Chbihi A, Cinausero M, Dueñas J, Edelbruck P, Frankland J, Gramegna F, Gruyer D, Kordyasz A, Kozik T, Lopez O, Marchi T, Morelli L, Olmi A, Ordine A, Pârlog M, Piantelli S, Poggi G, Rivet MF, Rosato E, Salomon F, Spadaccini G, Stefanini A, Valdré S, Vient E, Twaróg T, Alba R, Maiolino C, Santonocito D. Extracting information from partially depleted Si detectors with digital sampling electronics. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158801013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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14
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Vaidyanathan G, Gururangan S, Bigner D, Zalutsky M, Morfouace M, Shelat A, Megan J, Freeman BB, Robinson S, Throm S, Olson JM, Li XN, Guy KR, Robinson G, Stewart C, Gajjar A, Roussel M, Sirachainan N, Pakakasama S, Anurathapan U, Hansasuta A, Dhanachai M, Khongkhatithum C, Hongeng S, Feroze A, Lee KS, Gholamin S, Wu Z, Lu B, Mitra S, Cheshier S, Northcott P, Lee C, Zichner T, Lichter P, Korbel J, Wechsler-Reya R, Pfister S, Project IPT, Li KKW, Xia T, Ma FMT, Zhang R, Zhou L, Lau KM, Ng HK, Lafay-Cousin L, Chi S, Madden J, Smith A, Wells E, Owens E, Strother D, Foreman N, Packer R, Bouffet E, Wataya T, Peacock J, Taylor MD, Ivanov D, Garnett M, Parker T, Alexander C, Meijer L, Grundy R, Gellert P, Ashford M, Walker D, Brent J, Cader FZ, Ford D, Kay A, Walsh R, Solanki G, Peet A, English M, Shalaby T, Fiaschetti G, Baulande S, Gerber N, Baumgartner M, Grotzer M, Hayase T, Kawahara Y, Yagi M, Minami T, Kanai N, Yamaguchi T, Gomi A, Morimoto A, Hill R, Kuijper S, Lindsey J, Schwalbe E, Barker K, Boult J, Williamson D, Ahmad Z, Hallsworth A, Ryan S, Poon E, Robinson S, Ruddle R, Raynaud F, Howell L, Kwok C, Joshi A, Nicholson SL, Crosier S, Wharton S, Robson K, Michalski A, Hargrave D, Jacques T, Pizer B, Bailey S, Swartling F, Petrie K, Weiss W, Chesler L, Clifford S, Kitanovski L, Prelog T, Kotnik BF, Debeljak M, Fiaschetti G, Shalaby T, Baumgartner M, Grotzer MA, Gevorgian A, Morozova E, Kazantsev I, Iukhta T, Safonova S, Kumirova E, Punanov Y, Afanasyev B, Zheludkova O, Grajkowska W, Pronicki M, Cukrowska B, Dembowska-Baginska B, Lastowska M, Murase A, Nobusawa S, Gemma Y, Yamazaki F, Masuzawa A, Uno T, Osumi T, Shioda Y, Kiyotani C, Mori T, Matsumoto K, Ogiwara H, Morota N, Hirato J, Nakazawa A, Terashima K, Fay-McClymont T, Walsh K, Mabbott D, Smith A, Wells E, Madden J, Chi S, Owens E, Strother D, Packer R, Foreman N, Bouffet E, Lafay-Cousin L, Sturm D, Northcott PA, Jones DTW, Korshunov A, Lichter P, Pfister SM, Kool M, Hooper C, Hawes S, Kees U, Gottardo N, Dallas P, Siegfried A, Bertozzi AI, Sevely A, Loukh N, Munzer C, Miquel C, Bourdeaut F, Pietsch T, Dufour C, Delisle MB, Kawauchi D, Rehg J, Finkelstein D, Zindy F, Phoenix T, Gilbertson R, Pfister S, Roussel M, Trubicka J, Borucka-Mankiewicz M, Ciara E, Chrzanowska K, Perek-Polnik M, Abramczuk-Piekutowska D, Grajkowska W, Jurkiewicz D, Luczak S, Kowalski P, Krajewska-Walasek M, Lastowska M, Sheila C, Lee S, Foster C, Manoranjan B, Pambit M, Berns R, Fotovati A, Venugopal C, O'Halloran K, Narendran A, Hawkins C, Ramaswamy V, Bouffet E, Taylor M, Singhal A, Hukin J, Rassekh R, Yip S, Northcott P, Singh S, Duhman C, Dunn S, Chen T, Rush S, Fuji H, Ishida Y, Onoe T, Kanda T, Kase Y, Yamashita H, Murayama S, Nakasu Y, Kurimoto T, Kondo A, Sakaguchi S, Fujimura J, Saito M, Arakawa T, Arai H, Shimizu T, Lastowska M, Jurkiewicz E, Daszkiewicz P, Drogosiewicz M, Trubicka J, Grajkowska W, Pronicki M, Kool M, Sturm D, Jones DTW, Hovestadt V, Buchhalter I, Jager NN, Stuetz A, Johann P, Schmidt C, Ryzhova M, Landgraf P, Hasselblatt M, Schuller U, Yaspo ML, von Deimling A, Korbel J, Eils R, Lichter P, Korshunov A, Pfister S, Modi A, Patel M, Berk M, Wang LX, Plautz G, Camara-Costa H, Resch A, Lalande C, Kieffer V, Poggi G, Kennedy C, Bull K, Calaminus G, Grill J, Doz F, Rutkowski S, Massimino M, Kortmann RD, Lannering B, Dellatolas G, Chevignard M, Lindsey J, Kawauchi D, Schwalbe E, Solecki D, McKinnon P, Olson J, Hayden J, Grundy R, Ellison D, Williamson D, Bailey S, Roussel M, Clifford S, Buss M, Remke M, Lee J, Caspary T, Taylor M, Castellino R, Lannering B, Sabel M, Gustafsson G, Fleischhack G, Benesch M, Doz F, Kortmann RD, Massimino M, Navajas A, Reddingius R, Rutkowski S, Miquel C, Delisle MB, Dufour C, Lafon D, Sevenet N, Pierron G, Delattre O, Bourdeaut F, Ecker J, Oehme I, Mazitschek R, Korshunov A, Kool M, Lodrini M, Deubzer HE, von Deimling A, Kulozik AE, Pfister SM, Witt O, Milde T, Phoenix T, Patmore D, Boulos N, Wright K, Boop S, Gilbertson R, Janicki T, Burzynski 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Valdré S, Barlini S, Casini G, Pasquali G, Piantelli S, Carboni S, Cinausero M, Gramegna F, Marchi T, Baiocco G, Bardelli L, Benzoni G, Bini M, Blasi N, Bracco A, Brambilla S, Bruno M, Camera F, Corsi A, Crespi F, D’Agostino M, Degerlier M, Kravchuk VL, Leoni S, Million B, Montanari D, Morelli L, Nannini A, Nicolini R, Poggi G, Vannini G, Wieland O, Bednarczyk P, Ciemała M, Dudek J, Fornal B, Kmiecik M, Maj A, Matejska-Minda M, Mazurek K, Męczyński WM, Myalski S, Styczeń J, Ziębliński M. Measurement of light charged particles in the decay channels of medium-mass excited compound nuclei. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Francalanza L, Abbondanno U, Amorini F, Barlini S, Bini M, Bougault R, Bruno M, Cardella G, Casini G, Colonna M, D’Agostino M, De Filippo E, De Sanctis J, Geraci E, Giussani A, Gramegna F, Guiot B, Kravchuk V, La Guidara E, Lanzalone G, Le Neindre N, Maiolino C, Marini P, Morelli L, Olmi A, Pagano A, Papa M, Piantelli S, Pirrone S, Politi G, Poggi G, Porto F, Russotto P, Rizzo F, Vannini G, Vannucci L. Exploring reaction mechanisms and their competition in 58Ni+ 48Ca collisions at E = 25 AMeV. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Casini G, Barlini S, Pasquali G, Pastore G, Bini M, Carboni S, Olmi A, Piantelli S, Poggi G, Stefanini A, Valdré S, Bonnet E, Borderie B, Bougault R, Bruno M, Chbihi A, Cinausero M, Degerlier M, Edelbruck P, Frankland J, Gramegna F, Gruyer D, Guerzoni M, Kordjasz A, Kozik T, Le Neindre N, Lopez O, Marchi T, Marini P, Morelli L, Ordine A, Pârlog M, Rivet M, Rosato E, Salomon F, Spadaccini G, Twaróg T, Vient E, Vigilante M. The european FAZIA initiative: a high-performance digital telescope array for heavy-ion studies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146611006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Piantelli S, Casini G, Olmi A, Barlini S, Bini M, Carboni S, Maurenzig P, Pasquali G, Poggi G, Stefanini A, Bougault R, Le Neindre N, Lopez O, Parlog M, Vient E, Bonnet E, Chbihi A, Frankland J, Gruyer D, Rosato E, Spadaccini G, Vigilante M, Borderie B, Rivet M, Bruno M, Morelli L, Cinausero M, Degerlier M, Gramegna F, Marchi T, Alba R, Maiolino C, Santonocito D, Kozik T, Twarog T. Isospin transport in 84Kr+ 112,124Sn reactions at Fermi energies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Beccaria AM, Poggi G, Gingaud D, Castello P. Effect of Hydrostatic Pressure on Passivating Power of Corrosion Layers Formed on 6061 T6 Aluminium Alloy in Sea Water. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/000705994798267962] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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JVD, Endersby R, Gottardo N, von Bueren AO, Gerss J, Hagel C, Cai H, Remke M, Hasselblatt M, Feuerstein BG, Pernet S, Delattre O, Korshunov A, Rutkowski S, Pfister SM, Baudis M, Lee C, Fotovati A, Triscott J, Dunn S, Valdora F, Freier F, Seyler C, Brady N, Bender S, Northcott P, Kool M, Jones D, Coco S, Tonini GP, Scheurlen W, Boutros M, Taylor M, Katus H, Kulozik A, Zitron E, Korshunov A, Lichter P, Pfister S, Remke M, Shih DJH, Northcott PA, Van Meter T, Pollack IF, Van Meir E, Eberhart CG, Fan X, Dellatre O, Collins VP, Jones DTW, Clifford SC, Pfister SM, Taylor MD, Pompe R, von Bueren AO, von Hoff K, Friedrich C, Treulieb W, Lindow C, Deinlein F, Kuehl J, Rutkowski S, Gupta T, Krishnatry R, Shirsat N, Epari S, Kunder R, Kurkure P, Vora T, Moiyadi A, Jalali R, Cohen K, Perek D, Perek-Polnik M, Dembowska-Baginska B, Drogosiewicz M, Grajkowska W, Lastowska M, Chojnacka M, Filipek I, Tarasinska M, Roszkowski M, Hauser P, Jakab Z, Bognar L, Markia B, Gyorsok Z, Ottoffy G, Nagy K, Cservenyak J, Masat P, Turanyi E, Vizkeleti J, Krivan G, Kallay K, Schuler D, Garami M, Lacroix J, Schlund F, Adolph K, Leuchs B, Bender S, Hielscher T, Pfister S, Witt O, Schlehofer JR, Rommelaere J, Witt H, Leskov K, Ma N, Eberhart C, Stearns D, Dagri JN, Torkildson J, Evans A, Ashby LS, Zakotnik B, Brown RJ, Dhall G, Portnow J, Finlay JL, McCabe M, Pizer B, Marino AM, Baryawno N, Ekstrom TP, Ostman A, Johnsen JI, Robinson G, Parker M, Kranenburg T, Lu C, Pheonix T, Huether R, Easton J, Onar A, Lau C, Bouffet E, Gururangan S, Hassall T, Cohn R, Gajjar A, Ellison D, Mardis E, Wilson R, Downing J, Zhang J, Gilbertson R, Robinson G, Dalton J, O'Neill T, Yong W, Chingtagumpala M, Bouffet E, Bowers D, Kellie S, Gururangan S, Fisher P, Bendel A, Fisher M, Hassall T, Wetmore C, Broniscer A, Clifford S, Gilbertson R, Gajjar A, Ellison D, Zhukova N, Martin D, Lipman T, Castelo-Branco P, Zhang C, Fraser M, Baskin B, Ray P, Bouffet E, Alman B, Ramaswamy V, Dirks P, Clifford S, Rutkowski S, Pfister S, Bristow R, Taylor M, Malkin D, Hawkins C, Tabori U, Dhall G, Ji L, Haley K, Gardner S, Sposto R, Finlay J, Leary S, Strand A, Ditzler S, Heinicke G, Conrad L, Richards A, Pedro K, Knoblaugh S, Cole B, Olson J, Yankelevich M, Budarin M, Konski A, Mentkevich G, Stefanits H, Ebetsberger-Dachs G, Weis S, Haberler C, Milosevic J, Baryawno N, Sveinbjornsson B, Martinsson T, Grotzer M, Johnsen JI, Kogner P, Garzia L, Morrisy S, Jelveh S, Lindsay P, Hill R, Taylor M, Marks A, Zhang H, Rood B, Williamson D, Clifford S, Aurtenetxe O, Gaffar A, Lopez JI, Urberuaga A, Navajas A, O'Halloran K, Hukin J, Singhal A, Dunham C, Goddard K, Rassekh SR, Davidson TB, Fangusaro JR, Ji L, Sposto R, Gardner SL, Allen JC, Dunkel IJ, Dhall G, Finlay JL, Trivedi M, Tyagi A, Goodden J, Chumas P, O'kane R, Crimmins D, Elliott M, Picton S, Silva DS, Viana-Pereira M, Stavale JN, Malheiro S, Almeida GC, Clara C, Jones C, Reis RM, Spence T, Sin-Chan P, Picard D, Ho KC, Lu M, Huang A, Bochare S, Khatua S, Gopalakrishnan V, Chan TSY, Picard D, Pfister S, Hawkins C, Huang A, Chan TSY, Picard D, Ho KC, Huang A, Picard D, Millar S, Hawkins C, Rogers H, Kim SK, Ra YS, Fangusaro J, Toledano H, Nakamura H, Van Meter T, Pomeroy S, Ng HK, Jones C, Gajjar A, Clifford S, Pfister S, Eberhart C, Bouffet E, Grundy R, Huang A, Sengupta S, Weeraratne SD, Phallen J, Sun H, Rallapalli S, Amani V, Pierre-Francois J, Teider N, Cook J, Jensen F, Lim M, Pomeroy S, Cho YJ. MEDULLOBLASTOMA. Neuro Oncol 2012; 14:i82-i105. [PMCID: PMC3483339 DOI: 10.1093/neuonc/nos093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023] Open
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Strada MR, Palumbo R, Frascaroli M, Albanese D, Poggi G, Bernardo A, Amatu A, Teragni C, Jedrychowska I, Malagò G, Petracca M, Bernardo G. Abstract P2-14-05: Is It Only a Question of Willpower? Factors Associated with Job Resumption after Primary Breast Cancer Treatment — A Prospective Mono-Centre Trial. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p2-14-05] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The work experience of women who have had a breast cancer (BC) is still an unexplored area of survivorship research, while the number of women who are employed when they are diagnosed with BC is growing. The purpose of our research was to examine the impact of sociodemographic, clinical and employment variables on return to work after breast cancer.
Patients and methods: Eligibility requirements included histologically verified newly invasive breast carcinoma, age between 18 and 60 years, being employed in the month of diagnosis, and being able to respond an interview by questionnaires. The first questionnaire included three sets of questions focused on sociodemographic and personal characteristics, disease-related variables, and the work history. Quality of life and quality of work were assessed by EORTC QLQ-C30 and EORTC-Br23 and FACT-an and VBBA questionnaires. Follow-up assessments were carried out at 6 months, 12 months, 24 months and 30 months after surgery.
Results: Two hundred thirty-five eligible patients referring at our Institution between January 2002 and December 2006 with a newly diagnosed BC were enrolled in this longitudinal prospective study. Median age was 45 years (68 patients >45, 63 <45), more than high school degree in 70%; post-surgery complications in <50%, treatment-related side-effects in 38% of patients receiving adjuvant systemic therapies. The median time of disease duration was > 60 days in 73% of patients. At baseline 80% of women were full-time, and 25% were self-employed; 47% of them were flexible hours working. At 24 months after BC diagnosis, 178 women (75.7%) had returned to work. Most were state-employed (85%), full-time working in 69% of cases, and > 60% did an intellectual job; 63% benefited from flexible hours working. Discrimination because of cancer diagnosis was reported by 35% of patients and occupational intervention by 25% of re-employed women. Among the 57 women who had not returned to work after 24 months from diagnosis, 21 were still sick-listed, 18 received a disability work pension, 11 were early retired, and 7 were out of work. Statistical analysis showed that the duration of disease (odds ratio= 2.96; 95%CI 1.25 to 7.03) and the nature of work (odds ratio= 3.9; 95%CI 1.57 to 9.82) were the strongest predictors factors of work disability. Analysis of factors related to quality of life and quality of work showed that fatigue adversely affected the return to work in our sample, while perceived good quality of job was associated with a greater likelihood of work resumption (p<=0.001).
Conclusions: Our research confirm that work situation after BC is still an ongoing critical issue. In the present longitudinal study strictly disease-and work-related variables, as disease duration and nature of work, were the strongest predictors factors of work disability in employed BC survivors. While waiting for development of new therapeutic options that will leave even fewer survivors with work-related disabilities, the main challenge remains to identify survivors with working problems at all stages of survivorship, aiming to a better management of disabilities and improved occupational rehabilitation.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P2-14-05.
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Affiliation(s)
- MR Strada
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - R Palumbo
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | | | - D Albanese
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - G Poggi
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - A Bernardo
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - A Amatu
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - C Teragni
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | | | - G Malagò
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - M Petracca
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
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Bernardo G, Palumbo R, Poggi G, Bernardo A, Teragni C, Frascaroli M, Amatu A, Montagna B, Tagliaferri B, Sottotetti F, Albanese D, Strada MR. Abstract P6-11-03: Beyond the Second Line Chemotherapy in Metastatic Breast Cancer: When Stop the Treatment between Science and Conscience. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p6-11-03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Women with metastatic breast cancer (MBC) are increasingly offered third line chemotherapy, but the usefulness of treatment beyond the second line remains a therapeutic challenge. The aim of this study was to determine which benefit could be brought by successive lines of chemotherapy (CT) in patients with MBC and to identify factors affecting outcome and survival.
Patients and methods: This retrospective analysis included 980 women treated with CT for MBC at our Institution over a seven year period (September 1998-September 2006). With overall survival (OS) data updated at December 1, 2008, the median follow-up was 125 months (range 48-192), OS and time to treatment failure (TTF) were calculated according to the Kaplan-Meyer method for each CT line. Cox proportional hazards model was used to identify factors that could influence TTF and OS.
Results: Median OS evaluated from day 1 of each CT line decreased with the line number from 34.8 months (980 patients, first line, range 4-208) to 22.6 months (838 patients, second line), 14.6 months (684 patients, third line), 12.4 months (302 patients, fourth line), 9.4 months (88 patients, fifth line), 8.2 months (45 patients, seven or more lines). Median TTF ranged from 9.2 months to 7.8 and 6.4 months for the first, second and third line, respectively, with no significant decrease observed beyond the third line (median 5.2 months, range 4.8-6.2). In univariate analysis factors positively linked to a longer duration of TTF for each CT line were positive hormonal receptor status, absence of liver metastasis, adjuvant CT exposure, response to CT for the metastatic disease; in the multivariate analysis the duration of TTF for each CT line was the only one factor with significant impact on survival benefit for subsequent treatments (P<0.001).
Conclusions: Our results stress that CT beyond the first line may be beneficial in a significant subset of women treated for MBC. For patients responding to a given CT regimen and asking for further treatment after disease relapse, it appears useful to deliver subsequent active lines to get prolonged TTF and OS benefit. Patients who do not respond to the first two lines of CT should be considered for clinical trials or supportive care.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P6-11-03.
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Affiliation(s)
- G Bernardo
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - R Palumbo
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - G Poggi
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - A Bernardo
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - C Teragni
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | | | - A Amatu
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - B Montagna
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | | | | | - D Albanese
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
| | - MR. Strada
- Fondazione Maugeri-IRCCS, Pavia, PV, Italy
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Castiglione F, Buccoliero AM, Garbini F, Gheri CF, Moncini D, Poggi G, Saladino V, Rossi Degl'Innocenti D, Gheri RG, Taddei GL. Gestational diabetes insipidus: a morphological study of the placenta. Pathologica 2009; 101:227-229. [PMID: 20387708] [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: 05/29/2023] Open
Abstract
Gestational diabetes insipidus (GDI) refers to the state of excessive water intake and hypotonic polyuria. Those cases manifesting in pregnancy and referred to as GDI may persist thereafter or may be a transient latent form that resolves after delivery. Microscopic examination of affected subjects has not been previously reported. In the literature, there are various case reports and case series on diabetes insipidus in pregnancy. In this study, we present a case that had transient diabetes insipidus during pregnancy in which the placenta was examined.
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Affiliation(s)
- F Castiglione
- Department of Human Pathology and Oncology, University of Florence, School of Medicine, Florence, Italy
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Teragni C, Palumbo R, Bernardo A, Strada M, Poggi G, Amatu A, Montagna B, Tagliaferri B, Sottotetti F, Bernardo G. 9091 Activity, safety and compliance of sequential chemotherapy with cisplatin (CDDP) plus oral vinorelbine (VNRos) followed by three-weekly docetaxel (DOC) as first-line treatment for advanced non-small cell lung cancer (NSCLC): a single-centre phase II study. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71804-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Bernardo G, Palumbo R, Frascaroli M, Bernardo A, Losurdo A, Poggi G, Teragni C, Albanese D, Amatu A, Strada MR. Palonosetron compared to ondansetron in the prevention of chemotherapy-induced nausea and vomiting: Activity, safety, and cost-effectiveness evaluation. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20573 Background: Chemotherapy(CT)-induced nausea and vomiting (CINV) are common adverse effects in cancer patients. The control of CINV is a relevant objective for the patient's quality of life and also aims to optimize cancer treatment. 5-HT3- receptor antagonists (RAs) are commonly used to prevent CINV. Palonosetron, the only second generation 5-HT3-RA, has a significantly longer half-life and a higher binding activity than the first generation of 5-HT3RAs. Methods: To evaluate the activity, safety and farmacoeconomic profile of palonosetron compared to ondansetron as antiemetic prophylaxis for highly (HEC) or moderately (MEC) emetogenic chemotherapy, 235 consecutive chemo-naïve patients (pts) were assigned (1:1) to receive palonosetron 250 mcg i.v. plus dexamethasone 8 mg i.v. 30 min before CT on day 1 (Group A) or ondansetron 8 mg i.v. plus dexamethasone 8 mg i.v. on day 1, followed by 8 mg os twice daily over 3 days (Group B). Results: The 2 treatment groups were comparable with respect to tumour type (breast 52%, lung 20%, colorectal cancer 11%, ovarian 8%, head & neck 5%, other 4%) and emetogenic potential of CT (HEC in 78 pts, AC-based chemotherapy in 123, MEC in 35). FLIE questionnaires were completed on days 2–5. Complete response (CR) rate for the acute period was 82% in pts given HEC in group A versus 63.2% in group B, 93.4 % versus 80.6% in pts given AC and 100% versus 94.4% in pts given MEC. For the delayed period: 74.4% in group A versus 63.2% in group B for pts receiving HEC, 90.2% versus 71% in pts given AC and 94% versus 88.9% in pts given MEC. FLIE analysis showed a reduced impact of CINV on daily life in group A (p<0.05). The pharmacoeconomic evaluation showed favourable cost effectiveness profiles for palonosetron, with a saving of about 50% per cycle/per patient over ondansetron. A not significant reduced incidence of headache and constipation was observed in group A. Conclusions: Palonosetron was effective in preventing CINV following HEC, AC and MEC in both acute and delayed phases, as well as being cost effective. The CR rates were maintained throughout subsequent cycles of CT, with a significant positive impact on daily functioning and quality of life. No significant financial relationships to disclose.
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Affiliation(s)
| | | | | | | | | | - G. Poggi
- Maugeri Fondazione, Pavia, Italy
| | | | | | - A. Amatu
- Maugeri Fondazione, Pavia, Italy
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Palumbo R, Bernardo A, Strada M, Teragni C, Poggi G, Frascaroli M, Amatu A, Palumbo I, Bernardo G. Activity and safety of vinorelbine and capecitabine as first-line treatment in patients with metastatic breast cancer – a phase II trial. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)70741-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Poggi G, Moro G, Teragni C, Delmonte A, Saini G, Bernardo G. Scrotal involvement in Madelung disease: clinical, ultrasound and MR findings. ACTA ACUST UNITED AC 2007; 31:503-5. [PMID: 16447078 DOI: 10.1007/s00261-005-0401-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Multiple symmetrical lipomatosis, also known as Madelung disease, Launois-Bensaude syndrome, and benign symmetrical lipomatosis, is an uncommon disease that is characterized by the presence of multiple and symmetrical deposits of nonencapsulated adipose tissue in the neck, upper trunk, arms, and legs. It affects mainly men, with a higher incidence in the Mediterranean area, and is typically associated with high alcohol consumption and a high prevalence of peripheral neuropathy that usually appears long after the development of lipomatous masses. We report the case of a patient with involvement of the scrotum. We present clinical, ultrasound, and magnetic resonance appearances of these scrotal lipomatous masses for the first time.
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Affiliation(s)
- G Poggi
- Divisione di Oncologia II, IRCCS Fondazione S. Maugeri, Istituto Scientifico di Pavia, Pavia, 27100, Italy.
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Pippa P, Cuomo P, Panchetti A, Scarchini M, Poggi G, D'Arienzo M. High volume and low concentration of anaesthetic solution in the perivascular interscalene sheath determines qualityof block and incidence of complications. Eur J Anaesthesiol 2006; 23:855-60. [PMID: 16834790 DOI: 10.1017/s0265021506001074] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2006] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE In the perivascular sheath of the brachial plexus, the volume of anaesthetic solution determines the quality of anaesthetic cover. Fibrous septa may divide the perivascular space into compartments, leading to inadequate diffusion of the anaesthetic solution. The aim of our study was to obtain good anaesthesia and less complications using high volume of low concentration anaesthetic solution, overcoming the obstacle of the septa with a double approach to the scalene sheath. METHODS Sixty patients scheduled for shoulder capsuloplasty received both Winnie interscalene brachial plexus block and Pippa proximal cranial needle approach. The patients were randomly assigned to two groups. A constant dose of local anaesthetic was administered to each group: Group I (30 patients) received high volume (60 mL of anaesthetic solution) and Group II (30 patients) received low volume of solution (30 mL of anaesthetic solution). Sensory and motor block in the upper limb and complications were evaluated. RESULTS In all the patients the quality of anaesthesia obtained at the surgical site was excellent. In Group I also the areas supplied by the medial cutaneous nerves of the arm and forearm, ulnar, median and radial nerves were blocked (P < 0.002). Complications were only observed in Group II and consisted of bradycardia and hypotension (66% of the patients) and phrenic nerve paresis (27% of the patients). CONCLUSIONS The lower concentration of the anaesthetic solution avoids complications while increased volume provides good analgesic cover. The combination of the Winnie interscalene plexus block and the Pippa proximal cranial needle approach should contribute to fill up the scalene sheath overcoming the septa obstacles.
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Affiliation(s)
- P Pippa
- University of Florence, Department of Anaesthesiology, Florence, Italy
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Abstract
Intrahepatic cysts are generally classified as congenital, traumatic, infectious or neoplastic. Non-parasitic hepatic cysts (NPHCs) include simple cysts and adult polycystic liver disease in which the liver is diffusely occupied by cysts. NPHCs usually reach a large size before causing symptoms, unless a complication such as rupture, bleeding, infection, obstructive jaundice or neoplastic transformation occurs. We report the case of a 67-year-old man with spontaneous rupture of simple liver cyst. The clinical pictures and the unusual ultrasound features of this rare condition are discussed.
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Affiliation(s)
- G Poggi
- U.O. Oncologia II, Servizio di Radiologia, Istituto Scientifico di Pavia, Pavia, Italy.
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Poggi G, Liscio M, Adduci A, Galbiati S, Massimino M, Sommovigo M, Zetiin M, Figini E, Castelli E. Psychological and adjustment problems due to acquired brain lesions in childhood: a comparison between post-traumatic patients and brain tumour survivors. Brain Inj 2005; 19:777-85. [PMID: 16175838 DOI: 10.1080/0269905500110132] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To define and differentiate psychological and adjustment problems due to brain injury or brain tumour in children and adolescents. METHODS Two groups of patients with acquired brain lesions (24 post-traumatic patients and 22 brain tumour survivors), ranging in age between 8-15 years, received a psychological evaluation, including the Child Behaviour Checklist for Ages 4-18 (CBCL) and the Vineland Behaviour Adaptive Scales (VABS). RESULTS Both groups showed psychological and social adjustment problems. Post-traumatic patients were more impaired than brain tumour survivors. Social adjustment problems were associated to externalizing problems in post-traumatic patients and internalizing problems in brain tumour surviving patients. CONCLUSIONS These differences in psychological and behavioural disorders between the two groups must necessarily be considered when developing psychological treatment, rehabilitation plan and social re-entry.
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Affiliation(s)
- G Poggi
- IRCCS Eugenio Medea, Bosisio Parini (LC), Italy.
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Mangiarotti A, Maurenzig PR, Olmi A, Piantelli S, Bardelli L, Bartoli A, Bini M, Casini G, Coppi C, Gobbi A, Pasquali G, Poggi G, Stefanini AA, Taccetti N, Vanzi E. Energetics of midvelocity emissions in peripheral heavy ion collisions at Fermi energies. Phys Rev Lett 2004; 93:232701. [PMID: 15601152 DOI: 10.1103/physrevlett.93.232701] [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] [Subscribe] [Scholar Register] [Received: 05/28/2004] [Indexed: 05/24/2023]
Abstract
Peripheral and semiperipheral collisions have been studied in the system 93Nb+93Nb at 38A MeV. The evaporative and midvelocity components of the light charged particle and intermediate mass fragment emissions have been carefully disentangled. In this way it was possible to obtain the average amount not only of charge and mass, but also of energy, pertaining to the midvelocity emission, as a function of an impact parameter estimator. This emission has a very important role in the overall balance of the reaction, as it accounts for a large fraction of the emitted mass and for more than half of the dissipated energy. As such, it may give precious clues on the microscopic mechanism of energy transport from the interaction zone toward the target and projectile remnants.
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Affiliation(s)
- A Mangiarotti
- Sezione INFN and Università di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
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Strada MR, Frascaroli M, Jedrychowska I, Palumbo R, Poggi G, Bernardo A, Villani G, Melazzini M, Bernardo G. Prospective phase II study of integrated rehabilitative treatment in oncologic patients with neuromotor damage from vertebral metastases. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.8207] [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: 11/20/2022] Open
Affiliation(s)
| | | | | | | | - G. Poggi
- Fondazione S Maugeri, Pavia, Italy
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Bernardo G, Palumbo R, Bernardo A, Villani G, Melazzini M, Poggi G, Frascaroli M, Jedrychowska I. Final results of a phase II study of weekly trastuzumab and vinorelbine in chemonaive patients with HER2-overexpressing metastatic breast cance. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- G. Bernardo
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - R. Palumbo
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - A. Bernardo
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - G. Villani
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - M. Melazzini
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - G. Poggi
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - M. Frascaroli
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
| | - I. Jedrychowska
- Fondazione S Maugeri, Medical Oncology II, Pavia, Italy; Fondazione S Maugeri, Rehabilitative Oncology, Pavia, Italy
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Emmi S, Poggi G, D’Angelantonio M, Russo M, Favaretto L. The solvatochromic effect on some oligothiophene radical cations: a pulse radiolysis and semiempirical investigation. Radiat Phys Chem Oxf Engl 1993 2003. [DOI: 10.1016/s0969-806x(03)00047-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Orlandi G, Poggi G, Barigelletti F, Breccia A. Electron spin resonance study of the radicals produced by the .gamma.-irradiation of xanthene. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100628a004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Bendazzoli GL, Orlandi G, Palmieri P, Poggi G. The lowest energy excited singlet states and the cis-trans photoisomerization of styrene. J Am Chem Soc 2002. [DOI: 10.1021/ja00470a007] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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43
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Lori S, Donati M, Gasperini S, Bardini M, Nistri R, Poggi G, Garavaglia B, Zammarchi E. COMBINED DEFICIENCY OF PYRUVATE DEHYDROGENASE AND MITOCHONDRIAL RESPIRATOR CHAIN COMPLEX I: CASE REPORT. J Peripher Nerv Syst 2002. [DOI: 10.1046/j.1529-8027.2002.7011_26.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Piantelli S, Bidini L, Poggi G, Bini M, Casini G, Maurenzig PR, Olmi A, Pasquali G, Stefanini AA, Taccetti N. Intermediate mass fragment emission pattern in peripheral heavy-ion collisions at Fermi energies. Phys Rev Lett 2002; 88:052701. [PMID: 11863718 DOI: 10.1103/physrevlett.88.052701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2001] [Indexed: 05/23/2023]
Abstract
The emission pattern in the v(perp)-v(par) plane of intermediate mass fragments with Z = 3--7 (IMF) has been studied in the collision 116Sn+ 93Nb at 29.5A MeV as a function of the total kinetic energy loss of the reaction. This pattern shows that for peripheral reactions most IMF's are emitted at velocities intermediate between those of the projectile- and target-like products. Coulomb trajectory calculations show that these IMF's are produced in the interaction zone in a short time interval at the end of the target-projectile interaction.
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Affiliation(s)
- S Piantelli
- Istituto Nazionale di Fisica Nucleare and Università di Firenze, I-50125 Florence, Italy
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45
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Brunetti G, Delmastro M, Poggi G, Avanza F, Bertoli G. Sudden improvement of respiratory failure in a woman with carcinoma of the colon. Monaldi Arch Chest Dis 2002; 57:35-8. [PMID: 12174701] [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: 02/26/2023] Open
Abstract
We present a case of bronchial and endotracheal metastases completely blocking the left main bronchus and partially occluding the middle lobe bronchus contributing to severe respiratory failure. The patient's lack of consent to laser resection of the mass led to the use of chemotherapy; after the first cycle of treatment a neoplastic mass about 3 cm long was spontaneously expelled with a cough. The expulsion of the metastasis caused rapid improvement of the dyspnea and gas exchange; however, the continuation of the chemotherapy did not bring any further benefit to the patient, who died 115 days after diagnosis.
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Affiliation(s)
- G Brunetti
- Salvatore Maugeri Foundation, Scientific Institute of Pavia, Respiratory Unit, Via Ferrata 8, 27100 Pavia, Italy.
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46
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D'Elia C, Poggi G, Verdoliva L. Compression of SAR raw data through range focusing and variable-rate trellis-coded quantization. IEEE Trans Image Process 2001; 10:1278-1287. [PMID: 18255543 DOI: 10.1109/83.941852] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
There is an ever-growing interest in the compression of SAR data because of the huge resources required for storage and transmission. This is especially true for spaceborne sensors, given the limited capacity of the downlink channel. Unfortunately, SAR data lack the useful properties on which compression algorithms rely; indeed, these are present in the focused images, but focusing is too complex for on-board implementation at this time. Poggi et al. (2000) proposed to perform on the satellite only the low-complexity range focusing, which increases the data correlation and better concentrates their energy. These properties were then exploited by adopting a variable-rate vector quantizer, with a clear performance improvement with respect to reference techniques. However, vector quantization (VQ) is too complex for actual on-board implementation, and therefore, here we replace VQ with trellis-coded VQ. To limit complexity, only small vectors are used, which reduces VQ's ability to exploit data dependencies; on the other hand, trellis coding allows one to encode large blocks of data at once, and to obtain a better partition of the input space. Experiments on real SAR data show that the overall performance is comparable to that of Poggi et al., but the complexity is much lower, making on-board implementation possible.
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Affiliation(s)
- C D'Elia
- Dipartimento di Ingegneria Elettronica, Naples Univ.
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47
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Poggi G, Gatti C, Cupella F, Fiori M, Avanza F, Baldi M. Percutaneous US-guided radiofrequency ablation of hepatocellular carcinomas: results in 15 patients. Anticancer Res 2001; 21:739-42. [PMID: 11299836] [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: 02/19/2023]
Abstract
BACKGROUND The majority of patients with hepatocellular carcinoma (HCC) cannot undergo surgery because of multifocality, location or advanced cirrhosis. Our experience with percutaneous radiofrequency ablation for treatment of patients suffering from unresectable hepatocellular carcinoma is described here. PATIENTS AND METHODS Fifteen patients (ten men and five women) with eighteen primary hepatocellular tumors underwent percutaneous radiofrequency ablation. The mean diameter of the HCCs was 32 mm (ranging from 15 mm to 62 mm). The patients were treated under ultrasound guidance using either a 18-gauge internally cooled electrode or a 14-gauge electrode with four expandable hooks. RESULTS Complete necrosis was achieved in 15 lesions after one session of RF ablation. The persistence of a small portion of viable tissue was seen in two lesions. One lesion was not evaluable. After a mean follow-up period of 9.2 months (range 3-24 months), eleven patients (76%) showed no sign of local or distant recurrence, one patient developed a new lesion and one of two patients with persistence of viable tissue obtained a complete necrosis after the injection of percutaneous ethanol. Moreover, a major complication (intraperitoneal bleeding requiring surgical treatment) and three minor complications (1 pleuric effusion and 2 perihepatic fluid collections that resolved spontaneously) were observed. CONCLUSION RF ablation is a simple, well-tolerated and effective procedure for the treatment of unresectable hepatocellular carcinomas.
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Affiliation(s)
- G Poggi
- Divisione di Medicina Interna, IRCCS, Fondazione S. Maugeri, Pavia, Italy.
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48
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Poggi G, Gatti C, Baldi M. [Complications of percutaneous radiofrequency ablation of primary and secondary lesions of the liver. Description of a case]. Radiol Med 2000; 100:185-7. [PMID: 11148886] [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] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- G Poggi
- Divisione di Medicina d'Urgenza, Ospedale SS. Antonio e Biagio, Alessandria
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49
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Poggi G, Calori G, Mancarella G, Colombo E, Profice P, Martinelli F, Triscari C, Castelli E. Visual disorders after traumatic brain injury in developmental age. Brain Inj 2000; 14:833-45. [PMID: 11030456 DOI: 10.1080/026990500421930] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Visual disorders secondary to TBI are common, often multiple, associated with complex clinical pictures; in developmental age they may particularly interfere with the development process, and compromise the rehabilitation and outcome processes. The aim of this study is to identify visual disorders in 56 post-traumatic children admitted to the Traumatic Brain Injury Unit. All patients underwent a complete clinical, neurological and neuroophthalmological assessment. Correlations were studied between visual disorders and clinical parameters of acute phase, age at trauma, neuroimaging data and outcome, in order to identify possible risk factors for their occurrence. A high incidence was found of complex visual disorders following head trauma: decreased visual acuity, together with a convergence oculo-motor deficit, is the most frequently detected deficit. Trauma severity, indicated by duration of coma, is associated with most of the visual disorders and appears to be the main risk factor conducive to their appearance.
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Affiliation(s)
- G Poggi
- IRCCS Eugenio Medea, Bosisio Parini (LC), Italy.
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50
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Bonaglia MC, Giorda R, Poggi G, Raggi ME, Rossi E, Baroncini A, Giglio S, Borgatti R, Zuffardi O. Inverted duplications are recurrent rearrangements always associated with a distal deletion: description of a new case involving 2q. Eur J Hum Genet 2000; 8:597-603. [PMID: 10951522 DOI: 10.1038/sj.ejhg.5200509] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We studied the case of a subject with an inverted duplication of 40 cM of 2q33-q37 concurrent with a 10 cM deletion of the distal 2q, the latter not being detectable by cytogenetics. Microsatellite analysis demonstrated the absence of maternal alleles in the deleted region and a double dosage for one of the maternal alleles in the duplication region. We hypothesised that this type of rearrangement occurs at meiosis I, while the two homologues are synapsed for most of their length. The presence of inverted duplicons in the same chromosome arm would favour the partial refolding of one homologue into itself so leading to the intrachromatid synapsis and recombination of the inverted repeats. The arising recombinant chromosome is deleted for the region beyond the most distal repeat and with the chromatids joined together at the level of the region located between the two duplicons. At meiosis II, the two linked chromatids can join the opposite poles provided that a breakage between the two centromeres occurs leading to a duplicated/deleted chromosome and a simply deleted chromosome. This model can be extended to all the so-called inverted duplication cases and to part of the terminal deletions. In fact the finding that, in our invdup(2q), the entire 40 cM duplication region involves only one of the two maternal alleles, indeed indicates that the abnormal crossover occurs between sister chromatids. The phenotype associated with our 2q rearrangement led us to narrow the critical region for the Albright-like syndrome to 10 cM in the subterminal 2q region.
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