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Armangue T, Whitehead MT, Tonduti D, Farina L, Tavasoli AR, Vossough A, Bennett ML, Vaia Y, Bernard G, Salsano E, Mercimek-Andrews S, Waldman A, Vanderver A. Brainstem Chipmunk Sign: A Diagnostic Imaging Clue across All Subtypes of Alexander Disease. AJNR Am J Neuroradiol 2024:ajnr.A8220. [PMID: 38697787 DOI: 10.3174/ajnr.a8220] [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] [Received: 11/29/2023] [Accepted: 02/01/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND AND PURPOSE While classic brain MR imaging features of Alexander disease have been well-documented, lesional patterns can overlap with other leukodystrophies, especially in the early stages of the disease or in milder phenotypes. We aimed to assess the utility of a new neuroimaging sign to help increase the diagnostic specificity of Alexander disease. MATERIALS AND METHODS A peculiar bilateral symmetric hyperintense signal on T2-weighted images affecting the medulla oblongata was identified in an index patient with type I Alexander disease. Subsequently, 5 observers performed a systematic MR imaging review for this pattern by examining 55 subjects with Alexander disease and 74 subjects with other leukodystrophies. Interobserver agreement was assessed by the κ index. Sensitivity, specificity, and receiver operating characteristic curves were determined. RESULTS The identified pattern was present in 87% of subjects with Alexander disease and 14% of those without Alexander disease leukodystrophy (P < .001), 3 with vanishing white matter, 4 with adult polyglucosan body disease, and 3 others. It was found equally in both type I and type II Alexander disease (28/32, 88% versus 18/21, 86%; P = .851) and in subjects with unusual disease features (2/2). Sensitivity (87.3%; 95% CI, 76.0%-93.7%), specificity (86.5%; 95% CI, 76.9%-92.5%), and interobserver agreement (κ index = 0.82) were high. CONCLUSIONS The identified pattern in the medulla oblongata, called the chipmunk sign due to its resemblance to the face of this rodent, is extremely common in subjects with Alexander disease and represents a diagnostic tool that can aid in early diagnosis, especially in subjects with otherwise atypical MR imaging findings and/or clinical features.
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Affiliation(s)
- Thaís Armangue
- From the Neuroimmunology Program (T.A.), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-Hospital Clinic, University of Barcelona, Barcelona, Spain
- Neurology Department (T.A.), Neuroimmunology Unit, Sant Joan de Deu Children's Hospital, University of Barcelona, Barcelona, Spain
| | - Matthew T Whitehead
- Department of Radiology (M.T.W., A.Vossough), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (M.T.W., A.Vossough, A.W., A.Vanderver), University of Pennsylvania, Philadelphia, Pennsylvania
| | - Davide Tonduti
- Unit of Pediatric Neurology (D.T., Y.V.), Center for Diagnosis and Treatment of Leukodystrophies, V. Buzzi Children's Hospital, University of Milan, Milan, Italy
| | - Laura Farina
- Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Ali Reza Tavasoli
- Department of Neurology (A.R.T.), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurology (A.R.T.), Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, Arizona
| | - Arastoo Vossough
- Department of Radiology (M.T.W., A.Vossough), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (M.T.W., A.Vossough, A.W., A.Vanderver), University of Pennsylvania, Philadelphia, Pennsylvania
| | - Mariko L Bennett
- Division of Neurology (M.L.B., Y.V., A.W., A.Vanderver), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ylenia Vaia
- Unit of Pediatric Neurology (D.T., Y.V.), Center for Diagnosis and Treatment of Leukodystrophies, V. Buzzi Children's Hospital, University of Milan, Milan, Italy
- Division of Neurology (M.L.B., Y.V., A.W., A.Vanderver), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Geneviève Bernard
- Departments of Neurology and Neurosurgery, Pediatrics, and Human Genetics (G.B.), McGill University, Montreal, Quebec, Canada
- Department of Specialized Medicine (G.B.), Division of Medical Genetics, McGill University Health Centre, Montreal, Quebec, Canada
- Child Health and Human Development Program (G.B.), Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Ettore Salsano
- Unit of Rare Neurological Diseases (E.S.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Saadet Mercimek-Andrews
- Department of Medical Genetics (S.M.-A.), Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
- The Hospital for Sick Children (S.M.-A.), Toronto, Ontario, Canada
| | - Amy Waldman
- Perelman School of Medicine (M.T.W., A.Vossough, A.W., A.Vanderver), University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Neurology (M.L.B., Y.V., A.W., A.Vanderver), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Adeline Vanderver
- Perelman School of Medicine (M.T.W., A.Vossough, A.W., A.Vanderver), University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Neurology (M.L.B., Y.V., A.W., A.Vanderver), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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Vidjak K, Farina L, Challapalli RS, Quinn AM, O'Halloran M, Lowery A, Ruvio G, Cavagnaro M. Histology-validated electromagnetic characterization of ex-vivo ovine lung tissue for microwave-based medical applications. Sci Rep 2024; 14:5940. [PMID: 38467672 PMCID: PMC10928158 DOI: 10.1038/s41598-024-55035-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 02/19/2024] [Indexed: 03/13/2024] Open
Abstract
Microwave thermal ablation is an established therapeutic technique for treating malignant tissue in various organs. Its success greatly depends on the knowledge of dielectric properties of the targeted tissue and on how they change during the treatment. Innovation in lung navigation has recently increased the clinical interest in the transbronchial microwave ablation treatment of lung cancer. However, lung tissue is not largely characterized, thus its dielectric properties investigation prior and post ablation is key. In this work, dielectric properties of ex-vivo ovine lung parenchyma untreated and ablated at 2.45 GHz were recorded in the 0.5-8 GHz frequency range. The measured dielectric properties were fitted to 2-pole Cole-Cole relaxation model and the obtained model parameters were compared. Based on observed changes in the model parameters, the physical changes of the tissue post-ablation were discussed and validated through histology analysis. Additionally, to investigate the link of achieved results with the rate of heating, another two sets of samples, originating from both ovine and porcine tissues, were heated with a microwave oven for different times and at different powers. Dielectric properties were measured in the same frequency range. It was found that lung tissue experiences a different behavior according to heating rates: its dielectric properties increase post-ablation while a decrease is found for low rates of heating. It is hypothesized, and validated by histology, that during ablation, although the tissue is losing water, the air cavities deform, lowering air content and increasing the resulting tissue properties.
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Affiliation(s)
- Klementina Vidjak
- Department of Information Engineering, Electronics, and Telecommunications, Sapienza University of Rome, Rome, Italy
| | | | - Ritihaas Surya Challapalli
- Discipline of Surgery, Lambe Institute for Translational Research, University of Galway, Galway, Ireland
| | - Anne Marie Quinn
- Department of Anatomic Pathology, University Hospital Galway, Galway, Ireland
| | - Martin O'Halloran
- Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland
| | - Aoife Lowery
- Discipline of Surgery, Lambe Institute for Translational Research, University of Galway, Galway, Ireland
| | | | - Marta Cavagnaro
- Department of Information Engineering, Electronics, and Telecommunications, Sapienza University of Rome, Rome, Italy.
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Benzoni C, Moscatelli M, Farina L, Magri S, Ciano C, Scaioli V, Alverà S, Cammarata G, Bianchi-Marzoli S, Castellani M, Zito FM, Marotta G, Piacentini S, Villacara A, Mantegazza R, Gellera C, Durães J, Gouveia A, Matos A, do Carmo Macário M, Pareyson D, Taroni F, Di Bella D, Salsano E. Adult-onset leukodystrophy with vanishing white matter: a case series of 19 patients. J Neurol 2023; 270:4219-4234. [PMID: 37171481 DOI: 10.1007/s00415-023-11762-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND Leukodystrophy with vanishing white matter (LVWM) is an autosomal recessive disease with typical pediatric-onset caused by mutations in one of the five EIF2B genes. Adult-onset (AO) cases are rare. METHODS In this observational study, we reviewed clinical and laboratory information of the patients with AO-LVWM assessed at two referral centers in Italy and Portugal from Jan-2007 to Dec-2019. RESULTS We identified 18 patients (13 females) with AO-LVWM caused by EIF2B5 or EIF2B3 mutations. Age of neurological onset ranged from 16 to 60 years, with follow-ups occurring from 2 to 37 years. Crucial symptoms were cognitive and motor decline. In three patients, stroke-like events were the first manifestation; in another, bladder dysfunction remained the main complaint across decades. Brain MRI showed white matter (WM) rarefaction in all cases, except two. Diffusion-weighted imaging documented focal hyperintensity in the acute stage of stroke-like events. 1H-spectroscopy primarily showed N-acetyl-aspartate reduction; 18fluorodeoxyglucose-PET revealed predominant frontoparietal hypometabolism; evoked potential studies demonstrated normal-to-reduced amplitudes; neuro-ophthalmological assessment showed neuroretinal thinning, and b-wave reduction on full-field electroretinogram. Interestingly, we found an additional patient with LVWM-compatible phenotype and monoallelic variants in two distinct eIF2B genes, EIF2B1 and EIF2B2. CONCLUSIONS AO-LVWM presents varying clinical manifestations at onset, including stroke-like events. WM rarefaction is the most consistent diagnostic clue even in the latest onset cases. Spectroscopy and electrophysiological features are compatible with axon, rather than myelin, damage. Cerebral glucose metabolic abnormalities and retinal alterations can be present. LVWM might also be caused by a digenic inheritance affecting the eIF2B complex.
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Affiliation(s)
- Chiara Benzoni
- Unit of Rare Neurological Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133, Milan, Italy
| | - Marco Moscatelli
- Unit of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Farina
- Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Stefania Magri
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Claudia Ciano
- Unit of Neurophysiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Vidmer Scaioli
- Unit of Neurophysiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Alverà
- Unit of Neurophysiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Gabriella Cammarata
- Neuro-Ophthalmology Center and Ocular Electrophysiology Laboratory, Istituto Auxologico Italiano IRCCS Capitanio Hospital, Milan, Italy
| | - Stefania Bianchi-Marzoli
- Neuro-Ophthalmology Center and Ocular Electrophysiology Laboratory, Istituto Auxologico Italiano IRCCS Capitanio Hospital, Milan, Italy
| | - Massimo Castellani
- Department of Nuclear Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Felicia Margherita Zito
- Department of Nuclear Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giorgio Marotta
- Department of Nuclear Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Sylvie Piacentini
- Unit of Neuropsychology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | - Renato Mantegazza
- Unit of Neuromuscular Diseases and Neuroimmunology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cinzia Gellera
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - João Durães
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Gouveia
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Anabela Matos
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Maria do Carmo Macário
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Davide Pareyson
- Unit of Rare Neurological Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133, Milan, Italy
| | - Franco Taroni
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Daniela Di Bella
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Ettore Salsano
- Unit of Rare Neurological Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Celoria 11, 20133, Milan, Italy.
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Farina L, Ruvio G, Shatwan R, Shalaby A, O'Halloran M, White A, Soo A, Breen D, Lowery A, Quinn AM. Histology-Validated Dielectric Characterisation of Lung Carcinoma Tissue for Microwave Thermal Ablation Applications. Cancers (Basel) 2023; 15:3738. [PMID: 37509399 PMCID: PMC10378338 DOI: 10.3390/cancers15143738] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/12/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Microwave thermal ablation is a promising emerging treatment for early-stage lung cancer. Applicator design optimisation and treatment planning rely on accurate knowledge of dielectric tissue properties. Limited dielectric data are available in the literature for human lung tissue and pulmonary tumours. In this work, neoplastic and non-neoplastic lung dielectric properties are characterised and correlated with gross and histological morphology. Fifty-six surgical specimens were obtained from twelve patients undergoing lung resection for lung cancer in University Hospital of Galway, Ireland. Dielectric spectroscopy in the microwave frequency range (500 MHz-8.5 GHz) was performed on the ex vivo lung specimens with the open-ended coaxial probe technique (in the Department of Pathology). Dielectric data were analysed and correlated with the tissue histology. The dielectric properties of twelve lung tumours (67% non-small cell carcinoma (NSCC)) and uninvolved lung parenchyma were obtained. The values obtained from the neoplastic lung specimens (relative permittivity: 52.0 ± 5.4, effective conductivity: 1.9 ± 0.2 S/m, at 2.45 GHz) were on average twice the value of the non-neoplastic lung specimens (relative permittivity: 28.3 ± 6.7, effective conductivity: 1.0 ± 0.3 S/m, at 2.45 GHz). Dense fibrosis was comparable with tumour tissue (relative permittivity 49.3 ± 4.6, effective conductivity: 1.8 ± 0.1 S/m, at 2.45 GHz).
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Affiliation(s)
- Laura Farina
- R & D, Endowave Ltd., H91 DCH9 Galway, Ireland
- College of Medicine, Nursing and Health Sciences, University of Galway, H91 TK33 Galway, Ireland
| | | | - Ramadan Shatwan
- Department of Anatomic Pathology, Galway University Hospital, H91 YR71 Galway, Ireland
| | - Aliaa Shalaby
- Department of Anatomic Pathology, Galway University Hospital, H91 YR71 Galway, Ireland
| | - Martin O'Halloran
- College of Medicine, Nursing and Health Sciences, University of Galway, H91 TK33 Galway, Ireland
| | - Alexandra White
- Department of Cardiothoracic Surgery, Galway University Hospital, H91 YR71 Galway, Ireland
| | - Alan Soo
- Department of Cardiothoracic Surgery, Galway University Hospital, H91 YR71 Galway, Ireland
| | - David Breen
- Interventional Respiratory Unit, Department Respiratory Medicine, Galway University Hospital, H91 YR71 Galway, Ireland
| | - Aoife Lowery
- Discipline of Surgery, School of Medicine, University of Galway, H91 TK33 Galway, Ireland
| | - Anne Marie Quinn
- Department of Anatomic Pathology, Galway University Hospital, H91 YR71 Galway, Ireland
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Mola L, Ruzzier E, Deiaco C, Agosti M, Faccoli M, Matějíček J, Farina L, Diotti L, Rocca FD. A preliminary catalogue of the Coleoptera (Hexapoda: Insecta) of the Monte Netto Regional Park (Lombardy NE Italy). Zootaxa 2023; 5293:1-44. [PMID: 37518498 DOI: 10.11646/zootaxa.5293.1.1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Indexed: 08/01/2023]
Abstract
The Po Plain (Northern Italy) is one of the most urbanized areas in Europe. In such a territory, where ecosystem degradation reached critical levels and the agricultural matrix is prevailingly intensive, small fragments of hilly oak-hornbeam forests still persist. Examples of well preserved forests of the Po Plain are those of the Monte Netto Regional Park that represents irreplaceable refuges for both sedentary and migratory species. In this paper we present a preliminary list of Coleoptera inhabiting the Park collected during 10 years of field surveys using several sampling techniques (hand netting, beating tray, sight-collecting and collecting under bark; water nets; litter reducers, light traps; aerial sweet-bait trap; cross-vane panel trap, pitfall traps, Malaise traps, window traps, and walking transects). Specific samplings were also made in tree hollows and by car-netting. To date we have identified 834 species belonging to 531 genera and 71 families (several specimens and some families are still undetermined). Among all the species identified, 31 were non-native while 202 were included in the Red List of Italian saproxylic beetles, 12 of which were in threatened category. The high beetle richness and the presence of many endangered species recorded during this survey, emphasises the conservation value of Monte Netto. Moreover, the discovery of species linked to old and stable forest systems, such as Osmoderma eremita, Oxylaemus cylindricus, Pycnomerus terebrans or Xylotrechus antilope suggests how, despite their small size and the fact that they are surrounded by agricultural land, the remaining forest patches of Monte Netto still possess a fair level of naturalness, especially in the internal areas of the larger plots. Future targeted research, also intended to cover other parts of Monte Netto, could increase our present knowledge; however, and at least in the number of families, we do not expect a substantial increase in species richness.
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Affiliation(s)
- Livio Mola
- World Biodiversity Association Onlus c/o Museo Civico di Storia Naturale.
| | | | - Claudio Deiaco
- World Biodiversity Association Onlus c/o Museo Civico di Storia Naturale.
| | | | - Massimo Faccoli
- Department of Agronomy; Food; Natural Resources; Animals and the Environment (DAFNAE) - Viale dell'Università 16; Legnaro; 35020 Padova; Italy.
| | - Jan Matějíček
- Formankova 436; 50011 Hradec Králové (Czech Republic).
| | - Laura Farina
- Via A. Stoppani 17/A; 23880 Casatenovo (LC); Italy.
| | - Luciano Diotti
- Via A. Guazzoni 40; I-20092 Cinisello Balsamo (MI); Italy.
| | - Francesca Della Rocca
- Department of Earth and Environmental Science; University of Pavia; Via A. Ferrata 9; 27100 Pavia; Italy.
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De Lazzari M, Ström A, Farina L, Silva NP, Curto S, Trefná HD. Ethylcellulose-stabilized fat-tissue phantom for quality assurance in clinical hyperthermia. Int J Hyperthermia 2023; 40:2207797. [PMID: 37196995 DOI: 10.1080/02656736.2023.2207797] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/10/2023] [Accepted: 04/21/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Phantoms accurately mimicking the electromagnetic and thermal properties of human tissues are essential for the development, characterization, and quality assurance (QA) of clinically used equipment for Hyperthermia Treatment (HT). Currently, a viable recipe for a fat equivalent phantom is not available, mainly due to challenges in the fabrication process and fast deterioration. MATERIALS AND METHODS We propose to employ a glycerol-in-oil emulsion stabilized with ethylcellulose to develop a fat-mimicking material. The dielectric, rheological, and thermal properties of the phantom have been assessed by state-of-the-art measurement techniques. The full-size phantom was then verified in compliance with QA guidelines for superficial HT, both numerically and experimentally, considering the properties variability. RESULTS Dielectric and thermal properties were proven equivalent to fat tissue, with an acceptable variability, in the 8 MHz to 1 GHz range. The rheology measurements highlighted enhanced mechanical stability over a large temperature range. Both numerical and experimental evaluations proved the suitability of the phantom for QA procedures. The impact of the dielectric property variations on the temperature distribution has been numerically proven to be limited (around 5%), even if higher for capacitive devices (up to 20%). CONCLUSIONS The proposed fat-mimicking phantom is a good candidate for hyperthermia technology assessment processes, adequately representing both dielectric and thermal properties of the human fat tissue while maintaining structural stability even at elevated temperatures. However, further experimental investigations on capacitive heating devices are necessary to better assess the impact of the low electrical conductivity values on the thermal distribution.
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Affiliation(s)
- Mattia De Lazzari
- Biomedical Electromagnetics, Electrical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Anna Ström
- Applied Chemistry, Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden
| | - Laura Farina
- Translational Medical Device Lab, University of Galway, Galway, Ireland
| | - Nuno P Silva
- Translational Medical Device Lab, University of Galway, Galway, Ireland
| | - Sergio Curto
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, The Netherlands
| | - Hana Dobšíček Trefná
- Biomedical Electromagnetics, Electrical Engineering, Chalmers University of Technology, Göteborg, Sweden
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Bottiglieri A, Brace C, O’Halloran M, Farina L. MWA Performed at 5.8 GHz through 'Side Firing' Approach: An Exploratory Study. Sensors (Basel) 2022; 22:9320. [PMID: 36502019 PMCID: PMC9735527 DOI: 10.3390/s22239320] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Recent studies have shown that ablation techniques have the potential to eradicate adrenal adenomas while preserving the functionalities of the adrenal gland and the surrounding anatomical structures. This study explores a new microwave ablation (MWA) approach operating at 5.8 GHz and using anatomical and dielectric characteristics of the target tissue to create directional heating patterns. Numerical simulations are executed in planar and 3D adrenal models, considering two energy doses. The numerical study is refined accounting for the vaporization of the tissue water content. Ex vivo experimental evaluations on porcine adrenal models complete the study. The numerical and experimental results show that spherical ablation zones are able to cover the target for both energy doses considered. Nonetheless, most of the non-targeted tissues can be preserved from excessive heating when low energy level is used. Numerical models accounting for water vaporization are capable to foresee the experimental temperature values. This study shows that the proposed MWA directional approach operating at 5.8 GHz can be considered for creating effective and selective ablation zones.
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Affiliation(s)
- Anna Bottiglieri
- Electrical and Electronic Engineering, National University of Ireland Galway, H91 TK33 Galway, Ireland
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
| | - Christopher Brace
- Department of Biomedical Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA
- Department of Radiology, University of Wisconsin-Madison, 1111 Highland Ave, Madison, WI 53705, USA
| | - Martin O’Halloran
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
| | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland
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8
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Bottiglieri A, O'Halloran M, Ruvio G, Farina L. Management of adreno-cortical adenomas using microwave ablation: study of the effects of the fat tissue. Int J Hyperthermia 2022; 39:1179-1194. [PMID: 36096484 DOI: 10.1080/02656736.2022.2114611] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Adrenocortical neoplasms are the main causes of secondary hypertension and related comorbidities including hypokalemia and cardiovascular diseases. Conventional techniques for the management of this condition are often invasive and not resolutive. Recent studies proposed microwave thermal ablation (MWA) to eradicate adrenocortical adenomas arising in proximity to sensitive structures. This study explores a new MWA approach to selectively direct the electromagnetic energy into the target and shield the surrounding tissues. The new solution relies on the anatomical and dielectric characteristics of the adrenal gland and the surrounding fat capsule. METHODS A 3 D model of the adrenal gland is developed, and a cooled microwave applicator is placed parallel to the interface between the fat and adrenal tissue. Numerical simulations are conducted at 2.45 GHz accounting for two energy delivery settings, two orientations of the applicator and blood perfusion of the tissues. Ex vivo and in vivo ablation procedures are conducted on ovine adrenal glands. Histology analysis completes the experimental studies. RESULTS Numerical results show asymmetric ablation profiles in ex vivo and in vivo conditions. The asymmetry ratio is influenced by the procedure settings and orientation of the applicator. Ablation zones obtained experimentally agree with those predicted by the numerical simulations. Histology analysis confirms irreversible cellular changes only in the adrenal tissue close to the applicator. CONCLUSIONS The outcomes show that the dielectric contrast between the fat layer and tissue target can be a tool in MWA to shape ablation zones to protect the surrounding structures from excessive temperature increases.
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Affiliation(s)
- Anna Bottiglieri
- Electrical and Electronic Engineering, National University of Ireland Galway, Galway, Ireland.,Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland
| | - Martin O'Halloran
- Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland
| | | | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, Galway, Ireland.,Endowave Ltd, Galway, Ireland
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Waldron MG, Judge C, Farina L, O’Shaughnessy A, O’Halloran M. Barrier materials for prevention of surgical adhesions: systematic review. BJS Open 2022; 6:6602139. [PMID: 35661871 PMCID: PMC9167938 DOI: 10.1093/bjsopen/zrac075] [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] [Received: 11/08/2021] [Accepted: 04/07/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Postoperative surgical adhesions constitute a major health burden internationally. A wide range of materials have been evaluated, but despite constructive efforts and the obvious necessity, there remains no specific barrier widely utilized to prevent postoperative adhesion formation. The aim of this study was to highlight and characterize materials used for prevention of postoperative surgical adhesions in both animal and human studies. METHODS A systematic review was performed of all original research articles presenting data related to the prevention of postoperative adhesions using a barrier agent. All available observational studies and randomized trials using animal models or human participants were included, with no restrictions related to type of surgery. PubMed and Embase databases were searched using key terms from inception to August 2019. Standardized data collection forms were used to extract details for each study and assess desirable characteristics of each barrier and success in animal and/or human studies. RESULTS A total of 185 articles were identified for inclusion in the review, with a total of 67 unique adhesion barrier agents (37 natural and 30 synthetic materials). Desirable barrier characteristics of an ideal barrier were identified on review of the literature. Ten barriers achieved the primary outcome of reducing the incidence of postoperative adhesions in animal studies followed with positive outputs in human participants. A further 48 materials had successful results from animal studies, but with no human study performed to date. DISCUSSION Multiple barriers showed promise in animal studies, with several progressing to success, and fulfilment of desirable qualities, in human trials. No barrier is currently utilized commonly worldwide, but potential barriers have been identified to reduce the burden of postoperative adhesions and associated sequelae.
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Affiliation(s)
- Michael Gerard Waldron
- Correspondence to: Michael Gerard Waldron, Translational Medical Device Lab, Galway University Hospital, Newcastle Road, Galway, Ireland H91YR71 (e-mail: )
| | - Conor Judge
- Translational Medical Device Laboratory, National University of Ireland Galway, Galway, Ireland
| | - Laura Farina
- Translational Medical Device Laboratory, National University of Ireland Galway, Galway, Ireland
| | - Aoife O’Shaughnessy
- Translational Medical Device Laboratory, National University of Ireland Galway, Galway, Ireland
| | - Martin O’Halloran
- Translational Medical Device Laboratory, National University of Ireland Galway, Galway, Ireland
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10
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Day C, Battes K, Butler B, Davies S, Farina L, Frattolillo A, George R, Giegerich T, Hanke S, Härtl T, Igitkhanov Y, Jackson T, Jayasekera N, Kathage Y, Lang P, Lawless R, Luo X, Neugebauer C, Ploeckl B, Santucci A, Schwenzer J, Teichmann T, Tijssen T, Tosti S, Varoutis S, Cortes AV. The pre-concept design of the DEMO tritium, matter injection and vacuum systems. Fusion Engineering and Design 2022. [DOI: 10.1016/j.fusengdes.2022.113139] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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11
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Said Camilleri J, Farrugia L, Curto S, Rodrigues DB, Farina L, Caruana Dingli G, Bonello J, Farhat I, Sammut CV. Review of Thermal and Physiological Properties of Human Breast Tissue. Sensors (Basel) 2022; 22:s22103894. [PMID: 35632302 PMCID: PMC9143271 DOI: 10.3390/s22103894] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
Electromagnetic thermal therapies for cancer treatment, such as microwave hyperthermia, aim to heat up a targeted tumour site to temperatures within 40 and 44 °C. Computational simulations used to investigate such heating systems employ the Pennes’ bioheat equation to model the heat exchange within the tissue, which accounts for several tissue properties: density, specific heat capacity, thermal conductivity, metabolic heat generation rate, and blood perfusion rate. We present a review of these thermal and physiological properties relevant for hyperthermia treatments of breast including fibroglandular breast, fatty breast, and breast tumours. The data included in this review were obtained from both experimental measurement studies and estimated properties of human breast tissues. The latter were used in computational studies of breast thermal treatments. The measurement methods, where available, are discussed together with the estimations and approximations considered for values where measurements were unavailable. The review concludes that measurement data for the thermal and physiological properties of breast and tumour tissue are limited. Fibroglandular and fatty breast tissue properties are often approximated from those of generic muscle or fat tissue. Tumour tissue properties are mostly obtained from approximating equations or assumed to be the same as those of glandular tissue. We also present a set of reliable data, which can be used for more accurate modelling and simulation studies to better treat breast cancer using thermal therapies.
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Affiliation(s)
- Jeantide Said Camilleri
- Department of Physics, Faculty of Science, University of Malta, MSD 2080 Msida, Malta; (L.F.); (J.B.); (I.F.); (C.V.S.)
- Correspondence:
| | - Lourdes Farrugia
- Department of Physics, Faculty of Science, University of Malta, MSD 2080 Msida, Malta; (L.F.); (J.B.); (I.F.); (C.V.S.)
| | - Sergio Curto
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands;
| | - Dario B. Rodrigues
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland;
| | | | - Julian Bonello
- Department of Physics, Faculty of Science, University of Malta, MSD 2080 Msida, Malta; (L.F.); (J.B.); (I.F.); (C.V.S.)
| | - Iman Farhat
- Department of Physics, Faculty of Science, University of Malta, MSD 2080 Msida, Malta; (L.F.); (J.B.); (I.F.); (C.V.S.)
| | - Charles V. Sammut
- Department of Physics, Faculty of Science, University of Malta, MSD 2080 Msida, Malta; (L.F.); (J.B.); (I.F.); (C.V.S.)
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12
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Gerazov B, Caligari Conti DA, Farina L, Farrugia L, Sammut CV, Schembri Wismayer P, Conceição RC. Application of Machine Learning to Predict Dielectric Properties of In Vivo Biological Tissue. Sensors (Basel) 2021; 21:s21206935. [PMID: 34696148 PMCID: PMC8541465 DOI: 10.3390/s21206935] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/13/2021] [Accepted: 10/16/2021] [Indexed: 11/16/2022]
Abstract
In this paper we revisited a database with measurements of the dielectric properties of rat muscles. Measurements were performed both in vivo and ex vivo; the latter were performed in tissues with varying levels of hydration. Dielectric property measurements were performed with an open-ended coaxial probe between the frequencies of 500 MHz and 50 GHz at a room temperature of 25 °C. In vivo dielectric properties are more valuable for creating realistic electromagnetic models of biological tissue, but these are more difficult to measure and scarcer in the literature. In this paper, we used machine learning models to predict the in vivo dielectric properties of rat muscle from ex vivo dielectric property measurements for varying levels of hydration. We observed promising results that suggest that our model can make a fair estimation of in vivo properties from ex vivo properties.
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Affiliation(s)
- Branislav Gerazov
- Faculty of Electrical Engineering and Information Technologies, Ss Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia;
| | | | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland;
| | - Lourdes Farrugia
- Department of Physics, University of Malta, MSD 2080 Msida, Malta; (D.A.C.C.); (L.F.); (C.V.S.)
| | - Charles V. Sammut
- Department of Physics, University of Malta, MSD 2080 Msida, Malta; (D.A.C.C.); (L.F.); (C.V.S.)
| | | | - Raquel C. Conceição
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Correspondence: ; Tel.: +351-217-500-560
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13
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Luminari S, Galimberti S, Versari A, Tucci A, Boccomini C, Farina L, Zaja F, Marcheselli L, Ferrero S, Arcaini L, Pulsoni A, Musuraca G, Califano C, Merli M, Bari A, Conconi A, Giudice ID, Re F, Stefani PM, Usai SV, Perrone T, Gini G, Falini B, Gattei V, Manni M, Ladetto M, Mannina D, Federico M. RESPONSE ADAPTED POST INDUCTION THERAPY IN FOLLICULAR LYMPHOMA: UPDATED RESULTS OF THE FOLL12 TRIAL BY THE FONDAZIONE ITALIANA LINFOMI (FIL). Hematol Oncol 2021. [DOI: 10.1002/hon.80_2879] [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)
- S. Luminari
- Azienda Unità Sanitaria Locale IRCCS Arcispedale Santa Maria Nuova IRCCS Hematology Unit and University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine Reggio Emilia Italy
| | - S. Galimberti
- University of Pisa Department of Clinical and Experimental Medicine Pisa Italy
| | - A. Versari
- Azienda Unità Sanitaria Locale‐IRCCS ‐ Arcispedale Santa Maria Nuova Medicina Nucleare Reggio Emilia Italy
| | - A. Tucci
- ASST Spedali Civili di Brescia SC Ematologia Brescia Italy
| | - C. Boccomini
- A.O.U. Città della Salute e della Scienza di Torino SC Ematologia Torino Italy
| | - L. Farina
- Fondazione IRCCS Istituto Nazionale dei Tumori di Milano Division of Hematology Milano Italy
| | - F. Zaja
- Università degli Studi di Trieste Dipartimento Clinico di Scienze mediche, chirurgiche e della salute and, Azienda Sanitaria Universitaria Giuliano Isontina SC Ematologia Trieste Italy
| | | | - S. Ferrero
- University of Torino, Hematology Department of Molecular Biotechnologies and Health Sciences and AOU “Città della Salute e della Scienza di Torino” Hematology 1 Torino Italy
| | - L. Arcaini
- Fondazione IRCCS Policlinico San Matteo di Pavia Division of Hematology and University of Pavia Department of Molecular Medicine Pavia Italy
| | - A. Pulsoni
- Sapienza Università di Roma Dipartimento di Biotecnologie Cellulari ed Ematologia Roma Italy
| | - G. Musuraca
- IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori" Department of Hematology Meldola Italy
| | - C. Califano
- Ospedale Umberto I, U.O Medicina‐Oncoematologia Nocera Inferiore Italy
| | - M. Merli
- University Hospital Ospedale di Circolo e Fondazione Macchi ASST Settelaghi Varese Italy
| | - A. Bari
- Università di Modena e Reggio Emilia Dipartimento di Scienze Mediche e Chirurgiche Materno‐Infantili e dell'Adulto Modena Italy
| | - A. Conconi
- Ospedale degli Infermi Unit of Hematology Biella Italy
| | - I. del Giudice
- Policlinico Umberto I ‐ Università "La Sapienza" ‐ Istituto Ematologia Dipartimento di Medicina Traslazionale e di Precisione Roma Italy
| | - F. Re
- Azienda Ospedaliero Universitaria di Parma UO Ematologia e CTMO Parma Italy
| | - P. M. Stefani
- General Hospital Ca' Foncello Hematology Treviso Italy
| | - S. V. Usai
- Ospedale Oncologico Armando Businco Division of Hematology Cagliari Italy
| | - T. Perrone
- University of Bari Hematology Bari Italy
| | - G. Gini
- Marche Polytechnic University Department of Clinical and Molecular Sciences, Hematology Ancona Italy
| | - B. Falini
- Ospedale S. Maria della Misericordia University of Perugia Institute of Hematology and CREO (Center for Hemato‐Oncological Research) Perugia Italy
| | - V. Gattei
- Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Clinical and Experimental Onco‐Hematology Unit Aviano Italy
| | - M. Manni
- University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine Modena Italy
| | - M. Ladetto
- Università del Piemonte Orientale Dipartimento di Medicina Traslazionale and AO SS Antonio e Biagio e Cesare Arrigo SC Ematologia Alessandria Italy
| | - D. Mannina
- Azienda Ospedaliera Papardo UOC di Ematologia Messina Italy
| | - M. Federico
- University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant, Oncology and Regenerative Medicine Modena Italy
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14
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Luminari S, Guerra L, Durmo R, Chauvie S, Peano S, Franceschetto A, Fallanca F, Tarantino V, Pinto A, Ghiggi C, Pulsoni A, Merli M, Farina L, Tani M, Botto B, Musuraca G, Falini B, Ballerini F, Stefani PM, Bolis S, Pietrantuono G, Manni M, Marcheselli L, Federico M, Versari A. EARLY METABOLIC RESPONSE IN FOLLICULAR LYMPHOMA: A SUBSET ANALYSIS OF THE FOLL12 TRIAL BY THE FONDAZIONE ITALIANA LINFOMI (FIL). Hematol Oncol 2021. [DOI: 10.1002/hon.33_2880] [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: 11/09/2022]
Affiliation(s)
- S. Luminari
- Azienda Unità Sanitaria Locale IRCCS Arcispedale Santa Maria Nuova IRCCS, Hematology Unit and University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant Oncology and Regenerative Medicine Reggio Emilia Italy
| | - L. Guerra
- S. Gerardo Hospital University of Milano‐Bicocca, Nuclear Medicine and , University of Milano Bicocca School of Medicine and Surgery Monza Italy
| | - R. Durmo
- Azienda USL‐IRCCS di Reggio Emilia Nuclear Medicine Reggio Emilia Italy
| | - S. Chauvie
- Santa Croce e Carle Hospital Department of Medical Physics Cuneo Italy
| | - S. Peano
- ASO S. Croce e Carle S.C. Medicina Nucleare Cuneo Italy
| | - A. Franceschetto
- Modena Cancer Center University of Modena and Reggio Emilia Department of Oncology and Hematology Unit of Nuclear Medicine Modena Italy
| | - F. Fallanca
- IRCCS San Raffaele Scientific Institute Nuclear Medicine Unit Milano Italy
| | - V. Tarantino
- University of Modena and Reggio Emilia PhD program in Clinical and Experimental Medicine (CEM) Modena Italy
| | - A. Pinto
- National Cancer Institute Fondazione "G. Pascale" IRCCS Hematology‐Oncology and Stem Cell Transplantation Unit Napoli Italy
| | - C. Ghiggi
- IRCCS San Martino Hospital Hematology and Transplant Center Division Genoa Italy
| | - A. Pulsoni
- Sapienza Università di Roma Dipartimento di Biotecnologie Cellulari ed Ematologia Roma Italy
| | - M. Merli
- University Hospital Ospedale di Circolo e Fondazione Macchi ASST Settelaghi Varese Italy
| | - L. Farina
- Fondazione IRCCS Istituto Nazionale dei Tumori di Milano Division of Hematology Milano Italy
| | - M. Tani
- Ospedale Civile S Maria delle Croci Azienda Unità Sanitaria Locale (AUSL) Ravenna Italy
| | - B. Botto
- A.O.U. Città della Salute e della Scienza di Torino SC Ematologia Torino Italy
| | - G. Musuraca
- IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori" Department of Hematology Meldola Italy
| | - B. Falini
- University of Perugia, Institute of Hematology and CREO (Center for Hemato‐Oncological Research) Ospedale S. Maria della Misericordia Perugia Italy
| | - F. Ballerini
- IRCCS Ospedale Policlinico San Martino University of Genoa Clinica Ematologica Genova Italy
| | - P. M. Stefani
- General Hospital Ca' Foncello Hematology Treviso Italy
| | - S. Bolis
- ASST MONZA, SC di Ematologia Monza Italy
| | - G. Pietrantuono
- IRCCS Centro di Riferimento Oncologico della Basilicata Hematology and Stem Cell Transplantation Unit Rionero in Vulture Italy
| | - M. Manni
- University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant Oncology and Regenerative Medicine Modena Italy
| | | | - M. Federico
- University of Modena and Reggio Emilia Surgical, Medical and Dental Department of Morphological Sciences related to Transplant Oncology and Regenerative Medicine Modena Italy
| | - A. Versari
- Azienda USL‐IRCCS di Reggio Emilia Nuclear Medicine Reggio Emilia Italy
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15
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Di Bella D, Magri S, Benzoni C, Farina L, Maccagnano C, Sarto E, Moscatelli M, Baratta S, Ciano C, Piacentini SHMJ, Draghi L, Mauro E, Pareyson D, Gellera C, Taroni F, Salsano E. Hypomyelinating leukodystrophies in adults: Clinical and genetic features. Eur J Neurol 2020; 28:934-944. [PMID: 33190326 DOI: 10.1111/ene.14646] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 07/21/2020] [Revised: 11/07/2020] [Accepted: 11/10/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE Little is known about hypomyelinating leukodystrophies (HLDs) in adults. The aim of this study was to investigate HLD occurrence, clinical features, and etiology among undefined leukoencephalopathies in adulthood. METHODS We recruited the patients with cerebral hypomyelinating magnetic resonance imaging pattern (mild T2 hyperintensity with normal or near-normal T1 signal) from our cohort of 62 adult index cases with undefined leukoencephalopathies, reviewed their clinical features, and used a leukoencephalopathy-targeted next generation sequencing panel. RESULTS We identified 25/62 patients (~40%) with hypomyelination. Cardinal manifestations were spastic gait and varying degree of cognitive impairment. Etiology was determined in 44% (definite, 10/25; likely, 1/25). Specifically, we found pathogenic variants in the POLR3A (n = 2), POLR1C (n = 1), RARS1 (n = 1), and TUBB4A (n = 1) genes, which are typically associated with severe early-onset HLDs, and in the GJA1 gene (n = 1), which is associated with oculodentodigital dysplasia. Duplication of a large chromosome X region encompassing PLP1 and a pathogenic GJC2 variant were found in two patients, both females, with early-onset HLDs persisting into adulthood. Finally, we found likely pathogenic variants in PEX3 (n = 1) and PEX13 (n = 1) and potentially relevant variants of unknown significance in TBCD (n = 1), which are genes associated with severe, early-onset diseases with central hypomyelination/dysmyelination. CONCLUSIONS A hypomyelinating pattern characterizes a relevant number of undefined leukoencephalopathies in adulthood. A comprehensive genetic screening allows definite diagnosis in about half of patients, and demonstrates the involvement of many disease-causing genes, including genes associated with severe early-onset HLDs, and genes causing peroxisome biogenesis disorders.
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Affiliation(s)
- Daniela Di Bella
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Stefania Magri
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Chiara Benzoni
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Farina
- Unit of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Carmelo Maccagnano
- Unit of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elisa Sarto
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marco Moscatelli
- Unit of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Silvia Baratta
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Claudia Ciano
- Unit of Neurophysiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | | | - Lara Draghi
- Unit of Neuropsychology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Elena Mauro
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Davide Pareyson
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cinzia Gellera
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Franco Taroni
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Ettore Salsano
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Neuroscience PhD Program, University of Milano-Bicocca, Monza, Italy
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16
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Esposito S, Moscatelli M, Caccia C, Granocchio E, Pantaleoni C, Ardissone A, Gellera C, Farina L. Teaching NeuroImages: Symmetrical abnormalities of the globi pallidi in succinic semialdehyde dehydrogenase deficiency. Neurology 2020; 95:e2316-e2317. [PMID: 32680940 DOI: 10.1212/wnl.0000000000010367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Silvia Esposito
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy.
| | - Marco Moscatelli
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Claudio Caccia
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Elisa Granocchio
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Chiara Pantaleoni
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Anna Ardissone
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Cinzia Gellera
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Laura Farina
- From the Developmental Neurology Unit (S.E., E.G., C.P.), Neuroradiology Department (M.M., L.F.), Unit of Medical Genetics and Neurogenetics (C.C., C.G.), and Unit of Child Neurology (A.A.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; and Neuroimaging Laboratory (L.F.), IRCCS Fondazione Santa Lucia, Rome, Italy
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Bottiglieri A, Ruvio G, O’Halloran M, Farina L. Exploiting Tissue Dielectric Properties to Shape Microwave Thermal Ablation Zones. Sensors (Basel) 2020; 20:s20143960. [PMID: 32708680 PMCID: PMC7411896 DOI: 10.3390/s20143960] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/07/2020] [Accepted: 07/14/2020] [Indexed: 02/07/2023]
Abstract
The dielectric characterization of tissue targets of microwave thermal ablation (MTA) have improved the efficacy and pre-procedural planning of treatment. In some clinical scenarios, the tissue target lies at the interface with an external layer of fat. The aim of this work is to investigate the influence of the dielectric contrast between fat and target tissue on the shape and size of the ablation zone. A 2.45 GHz monopole antenna is placed parallel to an interface modelled by fat and a tissue characterized by higher dielectric properties and powered at 30 and 60 W for 60 s. The performances of MTA are numerically investigated considering different interface scenarios (i.e., different widths of fat layer, shifts in the antenna alignment) and a homogeneous reference scenario. Experiments (N = 10) are conducted on ex vivo porcine tissue to validate the numerical results. Asymmetric heating patterns are obtained in the interface scenario, the ablation zone in the target tissue is two-fold to ten-fold the size of the zone in the adipose tissue, and up to four times larger than the homogenous scenario. The adipose tissue reflects the electromagnetic energy into the adjacent tissue target, reducing the heating in the opposite direction.
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Affiliation(s)
- Anna Bottiglieri
- Electrical and Electronic Engineering, National University of Ireland Galway, H91 TK33 Galway, Ireland
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (G.R.); (L.F.)
- Correspondence: (A.B.); (M.O.)
| | - Giuseppe Ruvio
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (G.R.); (L.F.)
- Endowave Ltd., National University of Ireland Galway, H91 TK33 Galway, Ireland
| | - Martin O’Halloran
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (G.R.); (L.F.)
- Correspondence: (A.B.); (M.O.)
| | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (G.R.); (L.F.)
- CÚRAM, SFI Research Centre for Medical Devices, H91 TK33 Galway, Ireland
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18
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Bianchi-Marzoli S, Fenu S, Melzi L, Benzoni C, Antonazzo F, Tomas Roldan E, Farina L, Tremolada G, Mauro E, Pensato V, Gellera C, Pareyson D, Salsano E. Optical coherence tomography in adult adrenoleukodystrophy: a cross-sectional and longitudinal study. Neurol Sci 2020; 42:235-241. [PMID: 32632637 DOI: 10.1007/s10072-020-04576-2] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 07/02/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Adrenoleukodystrophy (ALD) encompasses different neurological phenotypes, ranging from the most severe cerebral forms (C-ALD) to the less severe adrenomyeloneuropathy (AMN). As visual system can be varyingly involved, we aimed at exploring whether optical coherence tomography (OCT) may detect retinal abnormalities and their longitudinal changes in adult ALD patients. METHODS In this cross-sectional and longitudinal study, we measured the thicknesses of peripapillary retinal nerve fiber layer (pRNFL), macular ganglion cell complex (mGCC), and segmented inner and outer macula at baseline and their changes over time in 11 symptomatic adult ALD males and 10 age- and sex-matched healthy controls. Statistical analyses were performed for the patients as complete group, and splitting them into two subgroups, one (C-ALD) with and the other (AMN) without cerebral parieto-occipital white matter (WM) lesions. RESULTS In the complete ALD group and in the C-ALD subgroup, the average pRNFL, mGCC, and inner macula were significantly thinner than in controls (p ≤ 0.01), whereas in the AMN subgroup, they were constantly, though non-significantly, thinner. Significant outer macula thinning was also observed (p < 0.01). In the complete ALD group, follow-up assessment (mean 26.8 months, range 8-48) showed mildly progressive thinning of inferior pRNFL, average mGCC, and inner macula. CONCLUSIONS In adult ALD patients, OCT can reveal retinal abnormalities which are prominent in the more compromised patients, namely those with parieto-occipital WM lesions. The inferior pRNFL, average mGCC and inner macula thicknesses might be sensitive-to-change OCT parameters, but their utility and consistency for short-term longitudinal studies deserve further investigations.
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Affiliation(s)
- Stefania Bianchi-Marzoli
- Neuro-ophthalmology Center and Ocular Electrophysiology Laboratory, Istituto Auxologico Italiano IRCCS Capitanio Hospital, Milan, Italy
| | - Silvia Fenu
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, 20133, Milan, Italy
| | - Lisa Melzi
- Neuro-ophthalmology Center and Ocular Electrophysiology Laboratory, Istituto Auxologico Italiano IRCCS Capitanio Hospital, Milan, Italy
| | - Chiara Benzoni
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, 20133, Milan, Italy
| | | | - Eugenia Tomas Roldan
- Unit of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Laura Farina
- Unit of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Gemma Tremolada
- Neuro-ophthalmology Center and Ocular Electrophysiology Laboratory, Istituto Auxologico Italiano IRCCS Capitanio Hospital, Milan, Italy
| | - Elena Mauro
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, 20133, Milan, Italy
| | - Viviana Pensato
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Cinzia Gellera
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Davide Pareyson
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, 20133, Milan, Italy
| | - Ettore Salsano
- Unit of Rare Neurodegenerative and Neurometabolic Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, via Celoria 11, 20133, Milan, Italy. .,Neuroscience PhD Program, University of Milano-Bicocca, Monza, Italy.
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19
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Silva NP, Bottiglieri A, Conceição RC, O’Halloran M, Farina L. Characterisation of Ex Vivo Liver Thermal Properties for Electromagnetic-Based Hyperthermic Therapies. Sensors (Basel) 2020; 20:E3004. [PMID: 32466323 PMCID: PMC7285484 DOI: 10.3390/s20103004] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 12/18/2022]
Abstract
Electromagnetic-based hyperthermic therapies induce a controlled increase of temperature in a specific tissue target in order to increase the tissue perfusion or metabolism, or even to induce cell necrosis. These therapies require accurate knowledge of dielectric and thermal properties to optimise treatment plans. While dielectric properties have been well investigated, only a few studies have been conducted with the aim of understanding the changes of thermal properties as a function of temperature; i.e., thermal conductivity, volumetric heat capacity and thermal diffusivity. In this study, we experimentally investigate the thermal properties of ex vivo ovine liver in the hyperthermic temperature range, from 25 °C to 97 °C. A significant increase in thermal properties is observed only above 90 °C. An analytical model is developed to model the thermal properties as a function of temperature. Thermal properties are also investigated during the natural cooling of the heated tissue. A reversible phenomenon of the thermal properties is observed; during the cooling, thermal properties followed the same behaviour observed in the heating process. Additionally, tissue density and water content are evaluated at different temperatures. Density does not change with temperature; mass and volume losses change proportionally due to water vaporisation. A 30% water loss was observed above 90 °C.
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Affiliation(s)
- Nuno P. Silva
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (N.P.S.); (A.B.); (M.O.)
- Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisbon, Portugal
| | - Anna Bottiglieri
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (N.P.S.); (A.B.); (M.O.)
| | - Raquel C. Conceição
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências Universidade de Lisboa, 1749-016 Lisbon, Portugal;
| | - Martin O’Halloran
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (N.P.S.); (A.B.); (M.O.)
| | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, Ireland; (N.P.S.); (A.B.); (M.O.)
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, H91 W2TY Galway, Ireland
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20
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Borreani C, Alfieri S, Farina L, Bianchi E, Corradini P. Fear of cancer recurrence in haematological cancer patients: exploring socio-demographic, psychological, existential and disease-related factors. Support Care Cancer 2020; 28:5973-5982. [PMID: 32285261 DOI: 10.1007/s00520-020-05434-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 10/24/2019] [Accepted: 03/27/2020] [Indexed: 01/02/2023]
Abstract
PURPOSE This study aims to explore the relation between the dimension of fear of cancer recurrence (FCR) in haematological cancer patients relapse-free for at least 2 years and socio-demographic, related to the disease, psychological and existential factors. METHODS A sample of 75 haematological cancer patients agreed to participate in the study through a self-reported online questionnaire (51.9% males). A total of 70.1% had a low recurrence risk. The questionnaire included socio-demographic (gender, age, civil status, level of education and number of children), related to the disease (diagnosis, therapeutic line and years since diagnosis), psychological (anxiety and depression), existential (purpose in life; PIL) factors and Fear of Cancer Recurrence Concerns Inventory (FCRI). Simple and multiple linear regressions were conducted for the analyses, and we performed some preliminary analysis on the reliability of the FCRI. FINDINGS A total of 53.3% of participants showed clinical levels of FCR on the severity dimension, which was higher than found in previous research in other cancer patients. The coping strategies, triggers, severity and psychological distress dimensions showed higher mean values. Women, patients with indolent non-Hodgkin lymphomas, years since diagnosis, anxiety and purpose in life are significantly related to one or more dimensions of FCRI. IMPLICATIONS It is important that the clinicians have at their disposal multiple possibilities to help patients cope with haematological cancer. If future research will confirm the results of this study, the negative correlation between FCR and PIL can suggest indications for planning interventions based on a salutogenic approach.
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Affiliation(s)
- C Borreani
- Clinical Psychology Unit, Fondazione IRCSS "Istituto Nazionale dei Tumori", Via Giacomo Venezian 1, 20133, Milan, Italy
| | - S Alfieri
- Clinical Psychology Unit, Fondazione IRCSS "Istituto Nazionale dei Tumori", Via Giacomo Venezian 1, 20133, Milan, Italy.
| | - L Farina
- Haematological Unit, Fondazione IRCSS "Istituto Nazionale dei Tumori", Milan, Italy
| | - E Bianchi
- Clinical Psychology Unit, Fondazione IRCSS "Istituto Nazionale dei Tumori", Via Giacomo Venezian 1, 20133, Milan, Italy
| | - P Corradini
- Haematological Unit, Fondazione IRCSS "Istituto Nazionale dei Tumori", Milan, Italy
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21
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Amin B, Shahzad A, Farina L, Parle E, McNamara L, O'Halloran M, Elahi MA. Dielectric characterization of diseased human trabecular bones at microwave frequency. Med Eng Phys 2020; 78:21-28. [PMID: 32037281 DOI: 10.1016/j.medengphy.2020.01.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 01/07/2020] [Accepted: 01/23/2020] [Indexed: 11/18/2022]
Abstract
The objective of this study is to determine whether in vitro dielectric properties of human trabecular bones, can distinguish between osteoporotic and osteoarthritis patients' bone samples. Specifically this study enlightens intra-patient variation of trabecular bone microarchitecture and dielectric properties, inter-disease comparison of bone dielectric properties, and finally establishes the correlation to traditional bone histomorphometry parameter (bone volume fraction) for diseased bone tissue. Bone cores were obtained from osteoporotic and osteoarthritis patients (n = 12). These were scanned using microCT to examine bone volume fraction. An open-ended coaxial probe measurement technique was employed to measure dielectric properties over the 0.5 - 8.5 GHz frequency range. The dielectric properties of osteoarthritis patients are significantly higher than osteoporotic patients; with an increase of 41% and 45% for relative permittivity and conductivity respectively. The dielectric properties within each patient vary significantly, variation in relative permittivity and conductivity was found to be greater than 25% and 1.4% respectively. A weak correlation (r = 0.5) is observed between relative permittivity and bone volume fraction. Osteoporotic and osteoarthritis bones can be differentiated based on difference of dielectric properties. Although these do not correlate strongly to bone volume fraction, it should be noted that bone volume fraction is a poor predictor of fracture risk. The dielectric properties of bones are found to be influenced by mineralization levels of bones. Therefore, dielectric properties of bones may have potential as a diagnostic measure of osteoporosis.
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Affiliation(s)
- Bilal Amin
- Electrical and Electronic Engineering, National University of Ireland Galway, Ireland; Translational Medical Device Lab, National University of Ireland Galway, Ireland.
| | - Atif Shahzad
- Translational Medical Device Lab, National University of Ireland Galway, Ireland; School of Medicine, National University of Ireland Galway, Ireland.
| | - Laura Farina
- Translational Medical Device Lab, National University of Ireland Galway, Ireland; CURAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, Ireland.
| | - Eoin Parle
- Mechanobiology and Medical Devices Research Group (MMDRG), Centre for Biomechanics Research (BioMEC), Biomedical Engineering, National University of Ireland Galway, Ireland.
| | - Laoise McNamara
- Mechanobiology and Medical Devices Research Group (MMDRG), Centre for Biomechanics Research (BioMEC), Biomedical Engineering, National University of Ireland Galway, Ireland.
| | - Martin O'Halloran
- Electrical and Electronic Engineering, National University of Ireland Galway, Ireland; Translational Medical Device Lab, National University of Ireland Galway, Ireland; School of Medicine, National University of Ireland Galway, Ireland; CURAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, Ireland.
| | - Muhammad Adnan Elahi
- Electrical and Electronic Engineering, National University of Ireland Galway, Ireland; Translational Medical Device Lab, National University of Ireland Galway, Ireland.
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22
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Fenu S, Castellotti B, Farina L, Cavallaro T, Di Bella D, Benzoni C, Gellera C, Pareyson D, Taroni F, Salsano E. Saposin B deficiency as a cause of adult-onset metachromatic leukodystrophy. Neurology 2019; 93:310-312. [PMID: 31289144 DOI: 10.1212/wnl.0000000000007951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/16/2019] [Indexed: 11/15/2022] Open
Affiliation(s)
- Silvia Fenu
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Barbara Castellotti
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Laura Farina
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Tiziana Cavallaro
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Daniela Di Bella
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Chiara Benzoni
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Cinzia Gellera
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Davide Pareyson
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Franco Taroni
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy
| | - Ettore Salsano
- From the Unit of Rare Neurodegenerative and Neurometabolic Diseases (S.F., C.B., D.P., E.S.), Unit of Medical Genetics and Neurogenetics (B.C., D.D.B., C.G., F.T.), and Unit of Neuroradiology (L.F.), Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan; Department of Neurology (T.C.), Azienda Ospedaliera Universitaria Integrata, University Hospital G.B. Rossi, Verona; and University of Milano-Bicocca (E.S.), Monza, Italy.
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23
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Strigari L, Minosse S, D'Alessio D, Farina L, Cavagnaro M, Cassano B, Pinto R, Vallati G, Lopresto V. Microwave thermal ablation using CT-scanner for predicting the variation of ablated region over time: advantages and limitations. Phys Med Biol 2019; 64:115021. [PMID: 30995620 DOI: 10.1088/1361-6560/ab1a67] [Citation(s) in RCA: 2] [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: 12/13/2022]
Abstract
This study aims at investigating in real-time the structural and dynamical changes occurring in an ex vivo tissue during a microwave thermal ablation (MTA) procedure. The experimental set-up was based on ex vivo liver tissue inserted in a dedicated box, in which 3 fibre-optic (FO) temperature probes were introduced to measure the temperature increase over time. Computed tomography (CT) imaging technique was exploited to experimentally study in real-time the Hounsfield Units (HU) modification occurring during MTA. The collected image data were processed with a dedicated MATLAB tool, developed to analyse the FO positions and HU modifications from the CT images acquired over time before and during the ablation procedures. The radial position of a FO temperature probe (rFO) and the value of HU in the region of interest (ROI) containing the probe (HUo), along with the corresponding value of HU in the contralateral ROI with respect to the MTA antenna applicator (HUc), were determined and registered over time during and after the MTA procedure. Six experiments were conducted to confirm results. The correlation between temperature and the above listed predictors was investigated using univariate and multivariate analysis. At the multivariate analysis, the time, rFO and HUc resulted significant predictive factors of the logarithm of measured temperature. The correlation between predicted and measured temperatures was 0.934 (p < 0.001). The developed tool allows identifying and registering the image-based parameters useful for predicting the temperature variation over time in each investigated voxel by taking into consideration the HU variation.
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Affiliation(s)
- L Strigari
- Laboratory of Medical Physics and Expert Systems, IRCCS Regina Elena National Cancer Institute, IFO, via Elio Chianesi, 53, 00144, Rome, Italy. Current address: Department of Medical Physics, St. Orsola-Malpighi University Hospital, via Massarenti 9 40138 Bologna, Italy
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24
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Vitale G, Pichiecchio A, Ormitti F, Tonduti D, Asaro A, Farina L, Piccolo B, Percesepe A, Bastianello S, Orcesi S, Battaglia D, Cereda C, Martelli P, Mine M, Pinelli L, Tartaglione T, Ghi T, Parrini E, Zuffardi O. Cortical malformations and COL4A1 mutation: Three new cases. Eur J Paediatr Neurol 2019; 23:410-417. [PMID: 30837194 DOI: 10.1016/j.ejpn.2019.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/13/2019] [Accepted: 02/17/2019] [Indexed: 01/30/2023]
Abstract
AIM The COL4A1 gene (13q34) encodes the α1 chain of type IV collagen, a crucial component of the basal membrane. COL4A1 mutations have been identified as a cause of a multisystem disease. Brain MRI in COL4A1-mutated patients typically shows vascular abnormalities and white matter lesions. Cortical malformations (specifically schizencephaly) have also recently been described in these patients, suggesting that these, too, could be part of the phenotypic spectrum of COL4A1 mutations. The aim of our work was to retrospectively evaluate COL4A1-mutated subjects diagnosed at our centers in order to assess the frequency and define the type of cortical malformations encountered in these individuals. METHOD We retrospectively reviewed MRI data of 18 carriers of COL4A1 mutations diagnosed in our centers between 2010 and 2016. RESULTS We identified polymicrogyria in two patients, and schizencephaly in the mother of a further patient. INTERPRETATION Our findings confirm that cortical malformations should be considered to fall within the phenotypic spectrum of COL4A1 mutations and show that not only schizencephaly but also polymicrogyria can also be found in mutated individuals. Although further studies are needed to clarify the underlying pathogenetic mechanism, independently of this, the timing of the brain damage could be the crucial factor determining the type of lesion.
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Affiliation(s)
- G Vitale
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - A Pichiecchio
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; Department of Neuroradiology, IRCCS Mondino Foundation, Pavia, Italy.
| | - F Ormitti
- Neuroradiology Unit, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - D Tonduti
- Child Neurology Unit, V. Buzzi Children's Hospital, Milan, Italy
| | - A Asaro
- Genomic and Post-Genomic Center, IRCCS Mondino Foundation, Pavia, Italy
| | - L Farina
- Department of Neuroradiology, IRCCS Mondino Foundation, Pavia, Italy
| | - B Piccolo
- Child Neuropsychiatry Unit, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - A Percesepe
- Medical Genetics, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - S Bastianello
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; Department of Neuroradiology, IRCCS Mondino Foundation, Pavia, Italy
| | - S Orcesi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; Child and Adolescence Neurology Unit, IRCCS Mondino Foundation, Pavia, Italy
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25
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Pollacco DA, Conti MC, Farrugia L, Wismayer PS, Farina L, Sammut CV. Dielectric properties of muscle and adipose tissue-mimicking solutions for microwave medical imaging applications. Phys Med Biol 2019; 64:095009. [PMID: 30844769 DOI: 10.1088/1361-6560/ab0dda] [Citation(s) in RCA: 2] [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: 11/12/2022]
Abstract
The aim of the present study was to synthesize mixture solutions which can accurately mimic the dielectric properties of biological tissues, specifically muscle and adipose tissues between 500 MHz and 50 GHz. Mixtures utilizing concentrations of bovine serum albumin (BSA) dissolved in phosphate buffered saline (PBS) and Ringer's solutions were synthesized to mimic in vivo and ex vivo muscle tissues. Solutions consisting of concentrations of peanut oil and Triton X-100 (TX) in PBS and Ringer's solutions were also synthesized to mimic in vivo and ex vivo adipose tissue. Results were then analysed and compared to measured dielectric properties of in vivo and ex vivo biological tissues from another previous study. Good agreement with said dielectric property measurements were obtained since the solutions from this study yielded low RMSE and RMSRE values. This implied that such solutions can be utilized in the construction of human body phantoms for narrowband and ultra-wideband microwave devices for near field breast cancer imaging.
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Affiliation(s)
- D A Pollacco
- Faculty of Science, Department of Physics, University of Malta, Msida, MSD 2080, Malta. Author to whom any correspondence should be addressed
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26
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Saredi S, Gibertini S, Matalonga L, Farina L, Ardissone A, Moroni I, Mora M. Exome sequencing detects compound heterozygous nonsense LAMA2 mutations in two siblings with atypical phenotype and nearly normal brain MRI. Neuromuscul Disord 2019; 29:376-380. [PMID: 31040037 DOI: 10.1016/j.nmd.2019.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 12/27/2018] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 12/12/2022]
Abstract
LAMA2 mutations cause the most frequent congenital muscular dystrophy subtype MDC1A and a variety of milder phenotypes, characterized by total or partial laminin-α2 deficiency. In both severe and milder cases brain MRI invariably shows abnormal white matter signal intensity. We report clinical, histopathological, imaging and genetic data on two siblings with very subtle, and at first undetected, reduction in laminin-α2 expression, and brain MRI showing minor non-specific abnormalities. Clinical features in the female proband were characterized by muscle weakness involving neck and axial muscles, and pelvic girdle and distal lower limb muscles, reduced tendon reflexes and pes cavus. Clinical features in a younger brother were similar, and remained stable in both siblings during the follow up. Whole exome sequencing (WES) detected two heterozygous truncating LAMA2 mutations. Brain MRI in combination with laminin-α2 immunohistochemistry might not be sufficient and WES might be the only means to reach a diagnosis.
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Affiliation(s)
- Simona Saredi
- Muscle Cell Biology Lab, Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Temolo 4, 20126 Milano, Italy
| | - Sara Gibertini
- Muscle Cell Biology Lab, Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Temolo 4, 20126 Milano, Italy
| | - Leslie Matalonga
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Baldiri Reixac 4, Barcelona 08028, Spain
| | - Laura Farina
- Neuroradiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Anna Ardissone
- Child Neurology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Isabella Moroni
- Child Neurology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Marina Mora
- Muscle Cell Biology Lab, Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Temolo 4, 20126 Milano, Italy.
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Pollacco DA, Farrugia L, Conti MC, Farina L, Schembri Wismayer P, Sammut CV. Characterization of the dielectric properties of biological tissues using mixture equations and correlations to different states of hydration. Biomed Phys Eng Express 2019. [DOI: 10.1088/2057-1976/aafc1a] [Citation(s) in RCA: 5] [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] [Indexed: 11/11/2022]
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Pasotto D, Drigo I, Contalbrigo L, Farina L, Martini M, Menandro M. Occurrence of Clostridium difficile in dogs involved in animal assisted interventions (AAIs) In Italy. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.206] [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: 10/27/2022] Open
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29
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Falcone R, Paci P, Verrienti A, Fiscon G, Sponziello M, Conte F, Pecce V, Rosignolo F, Grani G, Lamartina L, Ramundo V, Durante C, Farina L, Filetti S. Prediction of response to vemurafenib in BRAF V600E mutant cancers based on a network approach. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy303.057] [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: 11/13/2022] Open
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30
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Picca A, Berzero G, Diamanti L, Bini P, Bacila A, Farina L, Bernini S, D’Ippolito E, Preda L, Iannalfi A. P05.84 Clinical and radiological patterns of brain radiation necrosis after ion beam radiotherapy for head and neck tumors. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.410] [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: 11/13/2022] Open
Affiliation(s)
- A Picca
- Department of Neuro-oncology, Mondino Foundation IRCCS, Pavia, Italy
- Neuroscience Consortium, Mondino Foundation IRCSS, Monza Policlinico and Pavia University, Pavia, Italy
| | - G Berzero
- Department of Neuro-oncology, Mondino Foundation IRCCS, Pavia, Italy
| | - L Diamanti
- Department of Neuro-oncology, Mondino Foundation IRCCS, Pavia, Italy
| | - P Bini
- Department of Neuro-oncology, Mondino Foundation IRCCS, Pavia, Italy
| | - A Bacila
- Department of Neuroradiology, Mondino Foundation IRCCS, Pavia, Italy
| | - L Farina
- Department of Neuroradiology, Mondino Foundation IRCCS, Pavia, Italy
| | - S Bernini
- Laboratory of Neuropsychology, Mondino Foundation IRCCS, Pavia, Italy
| | - E D’Ippolito
- Radiotherapy Unit, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - L Preda
- Diagnostic Imaging Unit, National Center of Oncological Hadrontherapy (CNAO), Pavia, Italy
| | - A Iannalfi
- Radiotherapy Unit, National Center for Oncological Hadrontherapy (CNAO), Pavia, Italy
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31
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Giovannoni R, Facoetti A, Chisci E, Reggi S, Kutryb-Zajac B, Bombelli S, Di Marzo N, Farina L, Bianchi C, Perego R, Avezza F, Cadamuro M, Crippa L, Lavitrano M, Bentivegna A, Leone BE, Rivolta I, Barisani D, Smolenski RT, Romano G. Innovative and Efficient Oral Delivery Method of APOA-1Milano Muteins Which Retain Anti-Atherosclerotic and Anti-Inflammatory Properties. ATHEROSCLEROSIS SUPP 2018. [DOI: 10.1016/j.atherosclerosissup.2018.04.070] [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: 11/16/2022]
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Chapman SD, Farina L, Kronforst K, Dizon M. MicroRNA Profile Differences in Neonates at Risk for Cerebral Palsy. Phys Med Rehabil Int 2018; 5:1148. [PMID: 30740584 PMCID: PMC6364989] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND MicroRNAs; miRs are used as biomarkers in the diagnosis of several diseases. Cerebral palsy; CP, resulting from perinatal brain injury, cannot be diagnosed until 18-24 months old. Biomarkers to predict CP and assess response to investigational therapies are needed. We hypothesized that miRs expressed in neonates with the CP risk factors of abnormal tone and/or intraventricular hemorrhage; IVH differ from those without risk factors. METHODS This was a cohort study of neonates at risk for CP. Subjects <32 weeks gestation and <1500 grams were recruited from neonatal intensive care units at a large urban delivery hospital and an adjacent children's hospital. Thirty-one plasma samples were evaluated. An unbiased examination was performed by locked nucleic acid quantitative real time - polymerase chain reaction; qRT-PCR. Results were evaluated in the context of IVH and abnormal tone. RESULTS Plasma miR profiles in neonates at risk for CP differ when comparing those with and without IVH, and with and without abnormal tone. Restricted profiles were found in each condition with greater differences in the tone comparison than the IVH comparison. CONCLUSION Plasma miR profiles show potential in predicting CP. This study also suggests biologically plausible candidates for future studies.
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Affiliation(s)
- S D Chapman
- United States Naval Hospital Okinawa, 18 Medical Group, Kadena Air Base, Okinawa, Japan
| | - L Farina
- Department of Medicine, Northwestern University, USA
| | - K Kronforst
- Department of Pediatrics, Northwestern University, USA
| | - Mlv Dizon
- Department of Pediatrics, Northwestern University, USA
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Ardissone A, Tonduti D, Legati A, Lamantea E, Barone R, Dorboz I, Boespflug-Tanguy O, Nebbia G, Maggioni M, Garavaglia B, Moroni I, Farina L, Pichiecchio A, Orcesi S, Chiapparini L, Ghezzi D. KARS-related diseases: progressive leukoencephalopathy with brainstem and spinal cord calcifications as new phenotype and a review of literature. Orphanet J Rare Dis 2018; 13:45. [PMID: 29615062 PMCID: PMC5883414 DOI: 10.1186/s13023-018-0788-4] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 03/19/2018] [Indexed: 12/22/2022] Open
Abstract
Background KARS encodes lysyl- transfer ribonucleic acid (tRNA) synthetase, which catalyzes the aminoacylation of tRNA-Lys in the cytoplasm and mitochondria. Eleven families/sporadic patients and 16 different mutations in KARS have been reported to date. The associated clinical phenotype is heterogeneous ranging from early onset encephalopathy to isolated peripheral neuropathy or nonsyndromic hearing impairment. Recently additional presentations including leukoencephalopathy as predominant cerebral involvement or cardiomyopathy, isolated or associated with muscular and cerebral involvement, have been reported. A progressive Leukoencephalopathy with brainstem and spinal cord calcifications was previously described in a singleton patient and in two siblings, without the identification of the genetic cause. We reported here about a new severe phenotype associated with biallelic KARS mutations and sharing some common points with the other already reported phenotypes, but with a distinct clinical and neuroimaging picture. Review of KARS mutant patients published to date will be also discussed. Results Herein, we report the clinical, biochemical and molecular findings of 2 unreported Italian patients affected by developmental delay, acquired microcephaly, spastic tetraparesis, epilepsy, sensory-neural hypoacusia, visual impairment, microcytic hypochromic anaemia and signs of hepatic dysfunction. MRI pattern in our patients was characterized by progressive diffuse leukoencephalopathy and calcifications extending in cerebral, brainstem and cerebellar white matter, with spinal cord involvement. Genetic analysis performed on these 2 patients and in one subject previously described with similar MRI pattern revealed the presence of biallelic mutations in KARS in all 3 subjects. Conclusions With our report we define the molecular basis of the previously described Leukoencephalopathy with Brainstem and Spinal cord Calcification widening the spectrum of KARS related disorders, particularly in childhood onset disease suggestive for mitochondrial impairment. The review of previous cases does not suggest a strict and univocal genotype/phenotype correlation for this highly heterogeneous entity. Moreover, our cases confirm the usefulness of search for common brain and spine MR imaging pattern and of broad genetic screening, in syndromes clinically resembling mitochondrial disorders in spite of normal biochemical assay. Electronic supplementary material The online version of this article (10.1186/s13023-018-0788-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anna Ardissone
- Child Neurology, Foundation IRCCS Neurological Institute "C. Besta", Via Celoria 11, 20133, Milan, Italy. .,Department of Molecular and Translational Medicine DIMET, University of Milan-Bicocca, Milan, Italy.
| | - Davide Tonduti
- Child Neurology, Foundation IRCCS Neurological Institute "C. Besta", Via Celoria 11, 20133, Milan, Italy
| | - Andrea Legati
- Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Eleonora Lamantea
- Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Rita Barone
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Imen Dorboz
- INSERM UMR 1141, DHU PROTECT, Paris Diderot University, Sorbonne Paris Cité, France, Paris 06, Paris, France
| | - Odile Boespflug-Tanguy
- INSERM UMR 1141, DHU PROTECT, Paris Diderot University, Sorbonne Paris Cité, France, Paris 06, Paris, France.,AP-HP, Department of Neuropediatrics and Metabolic Diseases, National Reference Center for Leukodystrophies, Robert Debré Hospital, Paris, France
| | - Gabriella Nebbia
- Service of Paediatric Hepatology, Department of Paediatrics, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marco Maggioni
- Pathology, Fondazione IRCCS Ca' Granda Ospedale Policlinico Milano, Milan, Italy
| | - Barbara Garavaglia
- Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Isabella Moroni
- Child Neurology, Foundation IRCCS Neurological Institute "C. Besta", Via Celoria 11, 20133, Milan, Italy
| | - Laura Farina
- Neuroradiology, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Anna Pichiecchio
- Neuroradiology Department, IRCCS C. Mondino National Neurological Institute, Pavia, Italy
| | - Simona Orcesi
- Child Neurology and Psychiatry Unit, C. Mondino National Neurological Institute, Pavia, Italy
| | - Luisa Chiapparini
- Neuroradiology, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Daniele Ghezzi
- Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Lopresto V, Strigari L, Farina L, Minosse S, Pinto R, D’Alessio D, Cassano B, Cavagnaro M. CT-based investigation of the contraction ofex vivotissue undergoing microwave thermal ablation. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1361-6560/aaaf07] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Guidetti A, Mazzocchi A, Miceli R, Paterno' E, Taverna F, Spina F, Crippa F, Farina L, Corradini P, Gianni AM, Viviani S. Early reduction of serum TARC levels may predict for success of ABVD as frontline treatment in patients with Hodgkin Lymphoma. Leuk Res 2017; 62:91-97. [PMID: 28992524 DOI: 10.1016/j.leukres.2017.09.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 11/09/2016] [Revised: 09/01/2017] [Accepted: 09/25/2017] [Indexed: 01/23/2023]
Abstract
BACKGROUND Many efforts have been made to predict prognosis of newly diagnosed Hodgkin Lymphoma (HL) patients. Objective of this study was to investigate the association between early reduction of Thymus and Activation-Regulated Chemokine after the first ABVD cycle (TARC-1) and prognosis of HL patients. METHODS Serum samples of 116 HL patients were collected at baseline, after every ABVD cycle and during follow-up. The 99th centile of TARC distribution in a group of 156 independent healthy subjects (800pg/ml) was considered as cut-off for discriminating between abnormal and normal TARC values. FINDINGS 101 patients out of 116 had baseline TARC above 800pg/ml (median value 27515pg/ml (IQR, 11001-68139)) and were the object of this analysis. TARC-1 significantly decreased to a median value of 556pg/ml (IQR, 378-977pg/ml). TARC-1 values below 800pg/ml were associated with success of therapy (p=0.0003) and PET-2 negativity (p=0.001). TARC-1≤800pg/ml identified a population with a significantly higher 5-years PFS in the whole cohort (90.1% vs 55.6%; p<0.0001) and in both subgroups of advanced (p=0.003) and early stage patients (p=0.021). At multivariable analysis, TARC-1 was significant independent predictor of PFS (p=0.0035). INTERPRETATION Early reduction of TARC serum levels can predict success of treatment, being associated with achievement of interim PET-2 negative and favorable long-term outcome in HL patients receiving ABVD as front-line therapy.
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Affiliation(s)
- A Guidetti
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy; Department of Oncology and Onco-Hematology, University of Milano, Milan, Italy
| | - A Mazzocchi
- Immunohematology and Transfusion Medicine Service, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - R Miceli
- Department of Clinical Epidemiology and Trial Organization, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - E Paterno'
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - F Taverna
- Immunohematology and Transfusion Medicine Service, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - F Spina
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - F Crippa
- Department of Nuclear Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - L Farina
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - P Corradini
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy; Department of Oncology and Onco-Hematology, University of Milano, Milan, Italy
| | - A M Gianni
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - S Viviani
- Department of Hematology and Pediatric Onco-Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
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Farina L, Nissenbaum Y, Cavagnaro M, Goldberg SN. Tissue shrinkage in microwave thermal ablation: comparison of three commercial devices. Int J Hyperthermia 2017; 34:382-391. [DOI: 10.1080/02656736.2017.1362115] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Laura Farina
- Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome, Italy
| | - Yitzhak Nissenbaum
- Department of Radiology, Hadassah Hebrew University, Medical Center, Jerusalem, Israel
| | - Marta Cavagnaro
- Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome, Italy
| | - S. Nahum Goldberg
- Department of Radiology, Hadassah Hebrew University, Medical Center, Jerusalem, Israel
- Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, USA
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Chisci E, De Giorgi M, Zanfrini E, Testasecca A, Brambilla E, Cinti A, Farina L, Kutryb-Zajac B, Bugarin C, Villa C, Grassilli E, Combi R, Gaipa G, Cerrito MG, Rivolta I, Smolenski RT, Lavitrano M, Giovannoni R. Simultaneous overexpression of human E5NT and ENTPD1 protects porcine endothelial cells against H 2O 2-induced oxidative stress and cytotoxicity in vitro. Free Radic Biol Med 2017; 108:320-333. [PMID: 28389406 DOI: 10.1016/j.freeradbiomed.2017.03.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/28/2017] [Accepted: 03/29/2017] [Indexed: 12/12/2022]
Abstract
Ischemia-reperfusion injury (IRI) and oxidative stress still limit the survival of cells and organs in xenotransplantation models. Ectonucleotidases play an important role in inflammation and IRI in transplantation settings. We tested the potential protective effects derived by the co-expression of the two main vascular ectonucleotidases, ecto-5'-nucleotidase (E5NT) and ecto nucleoside triphosphate diphosphohydrolase 1 (ENTPD1), in an in vitro model of H2O2-induced oxidative stress and cytotoxicity. We produced a dicistronic plasmid (named pCX-DI-2A) for the co-expression of human E5NT and ENTPD1 by using the F2A technology. pCX-DI-2A-transfected porcine endothelial cells simultaneously overexpressed hE5NT and hENTPD1, which were correctly processed and localized on the plasma membrane. Furthermore, such co-expression system led to the synergistic enzymatic activity of hE5NT and hENTPD1 as shown by the efficient catabolism of pro-inflammatory and pro-thrombotic extracellular adenine nucleotides along with the enhanced production of the anti-inflammatory molecule adenosine. Interestingly, we found that the hE5NT/hENTPD1 co-expression system conferred protection to cells against H2O2-induced oxidative stress and cytotoxicity. pCX-DI-2A-transfected cells showed reduced activation of caspase 3/7 and cytotoxicity than mock-, hE5NT- and hENTPD1-transfected cells. Furthermore, pCX-DI-2A-transfected cells showed decreased H2O2-induced production of ROS as compared to the other control cell lines. The cytoprotective phenotype observed in pCX-DI-2A-transfected cells was associated with higher detoxifying activity of catalase as well as increased activation of the survival signaling molecules Akt, extracellular signal-regulated kinases 1/2 (ERK1/2) and p38 mitogen-activated protein kinase (MAPK). Our data add new insights to the protective effects of the combination of hE5NT and hENTPD1 against oxidative stress and constitute a proof of concept for testing this new genetic combination in pig-to-non-human primates xenotransplantation models.
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Affiliation(s)
- Elisa Chisci
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Marco De Giorgi
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy; Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland
| | - Elisa Zanfrini
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Angela Testasecca
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Elena Brambilla
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Alessandro Cinti
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Laura Farina
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Barbara Kutryb-Zajac
- Department of Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland
| | - Cristina Bugarin
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, 20900 Monza, Italy
| | - Chiara Villa
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Emanuela Grassilli
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Romina Combi
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Giuseppe Gaipa
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, 20900 Monza, Italy
| | - Maria Grazia Cerrito
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Ilaria Rivolta
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | | | - Marialuisa Lavitrano
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy
| | - Roberto Giovannoni
- School of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, 20900 Monza, Italy.
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Abstract
Microwave thermal ablation (MTA) therapy for cancer treatments relies on the absorption of electromagnetic energy at microwave frequencies to induce a very high and localized temperature increase, which causes an irreversible thermal damage in the target zone. Treatment planning in MTA is based on experimental observations of ablation zones in ex vivo tissue, while predicting the treatment outcomes could be greatly improved by reliable numerical models. In this work, a fully dynamical simulation model is exploited to look at effects of temperature-dependent variations in the dielectric and thermal properties of the targeted tissue on the prediction of the temperature increase and the extension of the thermally coagulated zone. In particular, the influence of measurement uncertainty of tissue parameters on the numerical results is investigated. Numerical data were compared with data from MTA experiments performed on ex vivo bovine liver tissue at 2.45GHz, with a power of 60W applied for 10min. By including in the simulation model an uncertainty budget (CI=95%) of ±25% in the properties of the tissue due to inaccuracy of measurements, numerical results were achieved in the range of experimental data. Obtained results also showed that the specific heat especially influences the extension of the thermally coagulated zone, with an increase of 27% in length and 7% in diameter when a variation of -25% is considered with respect to the value of the reference simulation model.
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Affiliation(s)
- Vanni Lopresto
- ENEA, Division of Health Protection Technologies, Casaccia Research Centre, Rome, Italy.
| | - Rosanna Pinto
- ENEA, Division of Health Protection Technologies, Casaccia Research Centre, Rome, Italy
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Ghia P, Scarfò L, Coscia M, Sancetta R, Ferrario A, Tedeschi A, Farina L, Laurenti L, Orlandi E, Reda G, Motta M, Carlo Stella C, Massaia M, Quaresmini G, Rossini F, Ladetto M, Gaidano G, Rossi V, Montillo M. A MRD-GUIDED APPROACH FOR THE COMBINATION OF IBRUTINIB TO VENETOCLAX IN RELAPSED/REFRACTORY PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA (IMPROVE STUDY). Hematol Oncol 2017. [DOI: 10.1002/hon.2440_11] [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: 11/11/2022]
Affiliation(s)
- P. Ghia
- Strategic Program on CLL; IRCCS Ospedale San Raffaele; Milan Italy
| | - L. Scarfò
- Strategic Program on CLL; IRCCS Ospedale San Raffaele; Milan Italy
| | - M. Coscia
- Division of Hematology, University of Torino; AOU Città della Salute e della Scienza di Torino; Torino Italy
| | - R. Sancetta
- U.O.C. Ematologia; Azienda ULSS 3 Serenissima; Mestre Italy
| | - A. Ferrario
- UOC Ematologia; Azienda Socio Sanitaria Territoriale dei Sette Laghi Ospedale di Circolo e Fondazione Macchi; Varese Italy
| | - A. Tedeschi
- Department of Haematology & Oncology Service of Haematology; Niguarda Cancer Center Niguarda Hospital; Milan Italy
| | - L. Farina
- Istituto Nazionale dei Tumori; Unità Trapianto di Midollo; Milan Italy
| | - L. Laurenti
- Policlinico A. Gemelli; Università Cattolica del Sacro Cuore; Rome Italy
| | - E. Orlandi
- S.C Ematologia; Fondazione IRCCS Policlinico San Matteo; Pavia Italy
| | - G. Reda
- UOC Oncoematologia; Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico; Milan Italy
| | - M. Motta
- U.O. Ematologia; Spedali Civili di Brescia-Azienda Ospedaliera; Brescia Italy
| | - C. Carlo Stella
- Sezione di Ematologia; Cancer Center Humanitas; Rozzano Italy
| | - M. Massaia
- Struttura Complessa di Ematologia; Azienda Ospedaliera S. Croce e Carle di Cuneo; Cuneo
| | - G. Quaresmini
- Ematologia; Azienda Ospedaliera Papa Giovanni XXIII; Bergamo Italy
| | - F. Rossini
- Divisione di Ematologia e Trapianto di Midollo, Ospedale S. Gerardo; Universita' di Milano Bicocca; Monza Italy
| | - M. Ladetto
- Ematologia; Presidio Ospedaliero SS Antonio e Biagio; Alessandria Italy
| | - G. Gaidano
- Divisione di Ematologia; Università del Piemonte Orientale "Amedeo Avogadro"; Novara Italy
| | - V. Rossi
- Hematology & Transfusion Medicine; L. Sacco University Hospital & School of Medicine; Milan Italy
| | - M. Montillo
- Department of Haematology & Oncology Service of Haematology; Niguarda Cancer Center Niguarda Hospital; Milan Italy
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40
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Spina F, Radice T, Dalto S, De Philippis C, Montefusco V, Dodero A, Farina L, Mussetti A, Soldarini M, Di Chio M, Viviani S, Corradini P. ALLOGENEIC TRANSPLANTATION IN HODGKIN'S LYMPHOMA AFTER A FAILED AUTOGRAFT: LONG TERM OUTCOMES AND GRAFT-VERSUS-HOST DISEASE FREE/RELAPSE-FREE SURVIVAL (GRFS). Hematol Oncol 2017. [DOI: 10.1002/hon.2438_27] [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)
- F. Spina
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - T. Radice
- Chair of Hematology; University of Milan; Milan Italy
| | - S. Dalto
- Chair of Hematology; University of Milan; Milan Italy
| | | | - V. Montefusco
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - A. Dodero
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - L. Farina
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - A. Mussetti
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - M. Soldarini
- Chair of Hematology; University of Milan; Milan Italy
| | - M. Di Chio
- Chair of Hematology; University of Milan; Milan Italy
| | - S. Viviani
- Hematology; Fondazione IRCCS Istituto Nazionale dei Tumori; Milan Italy
| | - P. Corradini
- Chair of Hematology; University of Milan; Milan Italy
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41
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Piscosquito G, Magri S, Saveri P, Milani M, Ciano C, Farina L, Taroni F, Pareyson D. A novelNDRG1mutation in a non-Romani patient with CMT4D/HMSN-Lom. J Peripher Nerv Syst 2017; 22:47-50. [DOI: 10.1111/jns.12201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/08/2016] [Accepted: 12/11/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Giuseppe Piscosquito
- Unit of Rare Neurological Diseases of Adulthood, Department of Clinical Neurosciences; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Stefania Magri
- Unit of Genetics of Neurodegenerative and Metabolic Disease, Department of Diagnostics and Applied Technology; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Paola Saveri
- Unit of Rare Neurological Diseases of Adulthood, Department of Clinical Neurosciences; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Micaela Milani
- Unit of Genetics of Neurodegenerative and Metabolic Disease, Department of Diagnostics and Applied Technology; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Claudia Ciano
- Neurophysiopathology and Epilepsy Centre, Department of Diagnostics and Applied Technology; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Laura Farina
- Unit of Neuroradiology, Department of Diagnostics and Applied Technology; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Franco Taroni
- Unit of Genetics of Neurodegenerative and Metabolic Disease, Department of Diagnostics and Applied Technology; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
| | - Davide Pareyson
- Unit of Rare Neurological Diseases of Adulthood, Department of Clinical Neurosciences; IRCCS Foundation, “C. Besta” Neurological Institute; Milan Italy
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42
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Torraco A, Ardissone A, Invernizzi F, Rizza T, Fiermonte G, Niceta M, Zanetti N, Martinelli D, Vozza A, Verrigni D, Di Nottia M, Lamantea E, Diodato D, Tartaglia M, Dionisi-Vici C, Moroni I, Farina L, Bertini E, Ghezzi D, Carrozzo R. Novel mutations in IBA57 are associated with leukodystrophy and variable clinical phenotypes. J Neurol 2016; 264:102-111. [PMID: 27785568 DOI: 10.1007/s00415-016-8312-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 09/08/2016] [Revised: 10/07/2016] [Accepted: 10/09/2016] [Indexed: 10/20/2022]
Abstract
Defects of the Fe/S cluster biosynthesis represent a subgroup of diseases affecting the mitochondrial energy metabolism. In the last years, mutations in four genes (NFU1, BOLA3, ISCA2 and IBA57) have been related to a new group of multiple mitochondrial dysfunction syndromes characterized by lactic acidosis, hyperglycinemia, multiple defects of the respiratory chain complexes, and impairment of four lipoic acid-dependent enzymes: α-ketoglutarate dehydrogenase complex, pyruvic dehydrogenase, branched-chain α-keto acid dehydrogenase complex and the H protein of the glycine cleavage system. Few patients have been reported with mutations in IBA57 and with variable clinical phenotype. Herein, we describe four unrelated patients carrying novel mutations in IBA57. All patients presented with combined or isolated defect of complex I and II. Clinical features varied widely, ranging from fatal infantile onset of the disease to acute and severe psychomotor regression after the first year of life. Brain MRI was characterized by cavitating leukodystrophy. The identified mutations were never reported previously and all had a dramatic effect on IBA57 stability. Our study contributes to expand the array of the genotypic variation of IBA57 and delineates the leukodystrophic pattern of IBA57 deficient patients.
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Affiliation(s)
- Alessandra Torraco
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Anna Ardissone
- Child Neurology Unit, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Federica Invernizzi
- Unit of Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Teresa Rizza
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Giuseppe Fiermonte
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Via E. Orabona 4, Bari, Italy
| | - Marcello Niceta
- Division of Genetic Disorders and Rare Diseases, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Nadia Zanetti
- Unit of Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Diego Martinelli
- Division of Metabolism, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Angelo Vozza
- Laboratory of Biochemistry and Molecular Biology, Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Via E. Orabona 4, Bari, Italy
| | - Daniela Verrigni
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Michela Di Nottia
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Eleonora Lamantea
- Unit of Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Daria Diodato
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Marco Tartaglia
- Division of Genetic Disorders and Rare Diseases, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Carlo Dionisi-Vici
- Division of Metabolism, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Isabella Moroni
- Child Neurology Unit, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Laura Farina
- Unit of Neuroradiology, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Enrico Bertini
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Daniele Ghezzi
- Unit of Molecular Neurogenetics, Foundation IRCCS Neurological Institute "C. Besta", Milan, Italy
| | - Rosalba Carrozzo
- Unit of Muscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
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Affiliation(s)
- M. Savoiardo
- Department of Neuroradiology, Istituto Nazionale Neurologico “C. Besta”; Milano, Italy
| | - M.G. Bruzzone
- Department of Neuroradiology, Istituto Nazionale Neurologico “C. Besta”; Milano, Italy
| | - L. D'Incerti
- Department of Neuroradiology, Istituto Nazionale Neurologico “C. Besta”; Milano, Italy
| | - L. Farina
- Department of Neuroradiology, Istituto Nazionale Neurologico “C. Besta”; Milano, Italy
| | - M. Grisoli
- Department of Neuroradiology, Istituto Nazionale Neurologico “C. Besta”; Milano, Italy
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Abstract
Microwave thermal ablation (MTA) is a minimally invasive therapeutic technique aimed at destroying pathologic tissues through a very high temperature increase induced by the absorption of an electromagnetic field at microwave (MW) frequencies. Open problems, which are delaying MTA applications in clinical practice, are mainly linked to the extremely high temperatures, up to 120 °C, reached by the tissue close to the antenna applicator, as well as to the ability of foreseeing and controlling the shape and dimension of the thermally ablated area. Recent research was devoted to the characterisation of dielectric, thermal and physical properties of tissue looking at their changes with the increasing temperature, looking for possible developments of reliable, automatic and personalised treatment planning. In this paper, a review of the recently obtained results as well as new unpublished data will be presented and discussed.
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Affiliation(s)
- V Lopresto
- a Division of Health Protection Technologies , Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Rome , Italy
| | - R Pinto
- a Division of Health Protection Technologies , Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Rome , Italy
| | - L Farina
- b Department of Information Engineering, Electronics and Telecommunications , Sapienza University of Rome , Rome , Italy
| | - M Cavagnaro
- b Department of Information Engineering, Electronics and Telecommunications , Sapienza University of Rome , Rome , Italy
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45
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Amabile C, Farina L, Lopresto V, Pinto R, Cassarino S, Tosoratti N, Goldberg SN, Cavagnaro M. Tissue shrinkage in microwave ablation of liver: an ex vivo predictive model. Int J Hyperthermia 2016; 33:101-109. [DOI: 10.1080/02656736.2016.1208292] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
| | - Laura Farina
- Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome
| | - Vanni Lopresto
- Division of Health Protection Technologies, Casaccia Research Centre, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | - Rosanna Pinto
- Division of Health Protection Technologies, Casaccia Research Centre, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy
| | | | | | - S. Nahum Goldberg
- Department of Radiology, Hadassah Hebrew University Medical Center, Jerusalem, Israel, and Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Marta Cavagnaro
- Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Rome
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46
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Minosse S, D'Alessio D, Lopresto V, Pinto R, Farina L, Cavagnaro M, Strigari L. CT-based monitoring of microwave thermal ablation. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.01.287] [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: 10/22/2022] Open
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47
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Boncoraglio GB, Piazza F, Savoiardo M, Farina L, DiFrancesco JC, Prioni S, Tagliavini F, Parati EA, Giaccone G. Prodromal Alzheimer's disease presenting as cerebral amyloid angiopathy-related inflammation with spontaneous amyloid-related imaging abnormalities and high cerebrospinal fluid anti-Aβ autoantibodies. J Alzheimers Dis 2016; 45:363-7. [PMID: 25537009 DOI: 10.3233/jad-142376] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cerebral amyloid angiopathy-related inflammation (CAA-ri), a rare form of vasculitis associated with amyloid-β (Aβ) deposition in vessel walls, has been proposed as a spontaneous human model of the amyloid-related imaging abnormalities (ARIA) occurring after anti-Aβ immunotherapy for the treatment of Alzheimer's disease (AD). We describe a case of a patient with biopsy-proven CAA-ri and prodromal AD, confirmed by means of neuropsychological examination after 20 months follow-up, presenting with ARIA and high levels of cerebrospinal fluid anti-Aβ autoantibodies. This case further supports the analogies between the inflammatory response driven by anti-Aβ immunotherapy and that spontaneously occurring in CAA-ri.
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Affiliation(s)
- Giorgio B Boncoraglio
- Department of Cerebrovascular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Fabrizio Piazza
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy The inflammatory Cerebral Amyloid Angiopathy and Alzheimer's disease Biomarkers International Network (iCAB) Coordinator
| | - Mario Savoiardo
- Department of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Laura Farina
- Department of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Jacopo C DiFrancesco
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy Department of Neurology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Sara Prioni
- Department of Neurodegenerative Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Fabrizio Tagliavini
- Department of Neurodegenerative Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Eugenio A Parati
- Department of Cerebrovascular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
| | - Giorgio Giaccone
- Department of Neurodegenerative Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milano, Italy
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48
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Tonduti D, Ardissone A, Ceccherini I, Giaccone G, Farina L, Moroni I. Unusual presentations and intrafamilial phenotypic variability in infantile onset Alexander disease. Neurol Sci 2016; 37:973-7. [DOI: 10.1007/s10072-015-2466-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 12/22/2015] [Indexed: 11/24/2022]
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49
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Ardissone A, Invernizzi F, Nasca A, Moroni I, Farina L, Ghezzi D. Mitochondrial leukoencephalopathy and complex II deficiency associated with a recessive SDHB mutation with reduced penetrance. Mol Genet Metab Rep 2015; 5:51-54. [PMID: 26925370 PMCID: PMC4695914 DOI: 10.1016/j.ymgmr.2015.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/13/2015] [Accepted: 10/13/2015] [Indexed: 11/04/2022] Open
Affiliation(s)
- Anna Ardissone
- Unit of Child Neurology, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
| | - Federica Invernizzi
- Unit of Molecular Neurogenetics, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
| | - Alessia Nasca
- Unit of Molecular Neurogenetics, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
| | - Isabella Moroni
- Unit of Child Neurology, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
| | - Laura Farina
- Unit of Neuroradiology, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
| | - Daniele Ghezzi
- Unit of Child Neurology, Fondazione Istituto Neurologico 'Carlo Besta', IRCCS, Milan, Italy
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50
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Cinti A, De Giorgi M, Chisci E, Arena C, Galimberti G, Farina L, Bugarin C, Rivolta I, Gaipa G, Smolenski RT, Cerrito MG, Lavitrano M, Giovannoni R. Simultaneous Overexpression of Functional Human HO-1, E5NT and ENTPD1 Protects Murine Fibroblasts against TNF-α-Induced Injury In Vitro. PLoS One 2015; 10:e0141933. [PMID: 26513260 PMCID: PMC4626094 DOI: 10.1371/journal.pone.0141933] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 10/14/2015] [Indexed: 12/17/2022] Open
Abstract
Several biomedical applications, such as xenotransplantation, require multiple genes simultaneously expressed in eukaryotic cells. Advances in genetic engineering technologies have led to the development of efficient polycistronic vectors based on the use of the 2A self-processing oligopeptide. The aim of this work was to evaluate the protective effects of the simultaneous expression of a novel combination of anti-inflammatory human genes, ENTPD1, E5NT and HO-1, in eukaryotic cells. We produced an F2A system-based multicistronic construct to express three human proteins in NIH3T3 cells exposed to an inflammatory stimulus represented by tumor necrosis factor alpha (TNF-α), a pro-inflammatory cytokine which plays an important role during inflammation, cell proliferation, differentiation and apoptosis and in the inflammatory response during ischemia/reperfusion injury in several organ transplantation settings. The protective effects against TNF-α-induced cytotoxicity and cell death, mediated by HO-1, ENTPD1 and E5NT genes were better observed in cells expressing the combination of genes as compared to cells expressing each single gene and the effect was further improved by administrating enzymatic substrates of the human genes to the cells. Moreover, a gene expression analyses demonstrated that the expression of the three genes has a role in modulating key regulators of TNF-α signalling pathway, namely Nemo and Tnfaip3, that promoted pro-survival phenotype in TNF-α injured cells. These results could provide new insights in the research of protective mechanisms in transplantation settings.
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Affiliation(s)
- Alessandro Cinti
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Marco De Giorgi
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
- Medical University of Gdansk, Gdansk, Poland
| | - Elisa Chisci
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Claudia Arena
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Gloria Galimberti
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Laura Farina
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Cristina Bugarin
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, Monza, Italy
| | - Ilaria Rivolta
- Department of Health Sciences, University of Milano-Bicocca, Monza, Italy
| | - Giuseppe Gaipa
- M. Tettamanti Research Center, Pediatric Clinic, University of Milano Bicocca, Monza, Italy
| | - Ryszard Tom Smolenski
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
- Medical University of Gdansk, Gdansk, Poland
| | - Maria Grazia Cerrito
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Marialuisa Lavitrano
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
| | - Roberto Giovannoni
- Department of Surgery and Translational Medicine, University of Milano-Bicocca, Monza, Italy
- * E-mail:
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