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Bukreeva I, Gulimova VI, Krivonosov YS, Buzmakov AV, Junemann O, Cedola A, Fratini M, Maugeri L, Begani Provinciali G, Palermo F, Sanna A, Pieroni N, Asadchikov VE, Saveliev SV. The Study of the Caudal Vertebrae of Thick-Toed Geckos after a Prolonged Space Flight by X-ray Phase-Contrast Micro-CT. Cells 2023; 12:2415. [PMID: 37830629 PMCID: PMC10572532 DOI: 10.3390/cells12192415] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023] Open
Abstract
The proximal caudal vertebrae and notochord in thick-toed geckos (TG) (Chondrodactylus turneri, Gray, 1864) were investigated after a 30-day space flight onboard the biosatellite Bion-M1. This region has not been explored in previous studies. Our research focused on finding sites most affected by demineralization caused by microgravity (G0). We used X-ray phase-contrast tomography to study TG samples without invasive prior preparation to clarify our previous findings on the resistance of TG's bones to demineralization in G0. The results of the present study confirmed that geckos are capable of preserving bone mass after flight, as neither cortical nor trabecular bone volume fraction showed statistically significant changes after flight. On the other hand, we observed a clear decrease in the mineralization of the notochordal septum and a substantial rise in intercentrum volume following the flight. To monitor TG's mineral metabolism in G0, we propose to measure the volume of mineralized tissue in the notochordal septum. This technique holds promise as a sensitive approach to track the demineralization process in G0, given that the volume of calcification within the septum is limited, making it easy to detect even slight changes in mineral content.
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Affiliation(s)
- Inna Bukreeva
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
- P.N. Lebedev Physical Institute Russian Academy of Sciences, Leninskiy Prospekt 53, 119991 Moscow, Russia
| | - Victoria I. Gulimova
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution, “Petrovsky National Research Centre of Surgery”, Tsyurupy Str. 3, 117418 Moscow, Russia;
| | - Yuri S. Krivonosov
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Leninskiy Prospekt 59, 119333 Moscow, Russia (V.E.A.)
| | - Alexey V. Buzmakov
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Leninskiy Prospekt 59, 119333 Moscow, Russia (V.E.A.)
| | - Olga Junemann
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution, “Petrovsky National Research Centre of Surgery”, Tsyurupy Str. 3, 117418 Moscow, Russia;
| | - Alessia Cedola
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
| | - Michela Fratini
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306/354, 00142 Roma, Italy
| | - Laura Maugeri
- IRCCS Fondazione Santa Lucia, Via Ardeatina 306/354, 00142 Roma, Italy
| | - Ginevra Begani Provinciali
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
- Physics Department, ‘Sapienza’ University, Piazzale Aldo Moro 2, 00185 Rome, Italy
- Laboratoire d’Optique Appliquée, CNRS, ENSTA Paris, Ecole Polytechnique IP Paris, 91120 Palaiseau, France
| | - Francesca Palermo
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
| | - Alessia Sanna
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
| | - Nicola Pieroni
- Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy; (I.B.); (O.J.); (A.C.); (M.F.)
| | - Victor E. Asadchikov
- Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Leninskiy Prospekt 59, 119333 Moscow, Russia (V.E.A.)
| | - Sergey V. Saveliev
- Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution, “Petrovsky National Research Centre of Surgery”, Tsyurupy Str. 3, 117418 Moscow, Russia;
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Maugeri L, Jankovski A, Malucelli E, Mangini F, Vandeweerd JM, Gilloteaux J, De Swert K, Brun F, Begani Provinciali G, DiNuzzo M, Mittone A, Bravin A, Gigli G, Giove F, Cedola A, Nicaise C, Fratini M. Lesion extension and neuronal loss following spinal cord injury using X-ray phase-contrast tomography in mice. J Neurotrauma 2022; 40:939-951. [PMID: 36074949 DOI: 10.1089/neu.2021.0451] [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: 11/13/2022] Open
Abstract
Following a spinal cord injury (SCI) the degree of functional (motor, autonomous or sensory) correlates with the severity of nervous tissue disruption. An imaging technique able to capture non-invasively and simultaneously the complex mechanisms of neuronal loss, vascular damages and perilesional tissue reorganization is currently lacking in experimental SCI studies. Synchrotron X-ray phase-contrast Tomography (SXPCT) has emerged as a non-destructive 3D neuroimaging technique with high contrast and spatial resolution. In this framework, we developed a multimodal approach combining SXPCT, histology and correlative methods to study neuro-vascular architecture in normal and C4-contused mouse spinal cords (C57BL/6J mice, age 2-3 months). The evolution of SCI lesion was imaged at the cell resolution level during the acute (30 minutes) and subacute (7 days) phases. Spared motor neurons were segmented and quantified in different volumes localized at and away from the epicenter. SXPCT was able to capture neuronal loss and blood-brain barrier breakdown following SCI. 3D quantification based on SXPCT acquisitions showed no additional motor neuron loss between 30 minutes and 7 days post-SCI. In addition, the analysis of hemorrhagic (at 30 minutes) and lesion (at 7 days) volumes revealed a high similarity in size, suggesting no extension of tissue degeneration between early and later time points. Moreover, glial scar borders were unevenly distributed, with rostral edges being the most extended. In conclusion, SXPCT capability to image at high-resolution cellular changes in 3D enables understanding the relationship between hemorrhagic events and nervous structure damages in SCI.
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Affiliation(s)
- Laura Maugeri
- CNR NANOTEC, Lecce, Lecce, Italy.,Santa Lucia Foundation, Roma, Lazio, Italy;
| | - Aleksandar Jankovski
- Université catholique de Louvain, Institute of NeuroScience (IoNS), NEUR division, Brussels, Walloon Brabant, Belgium.,Universite catholique de Louvain, Department of Neurosurgery, CHU UCL Namur, Yvoir, Walloon Brabant, Belgium;
| | - Emil Malucelli
- University of Bologna, Department of Pharmacy and Biotechnology, Bologna, Emilia-Romagna, Italy;
| | | | | | - Jacques Gilloteaux
- Universite de Namur, URPhyM - NARILIS, Namur, Belgium.,St George's University School of Medicine, Department of Anatomical Sciences, St George's, St George's, Grenada;
| | | | - Francesco Brun
- University of Trieste, Department of Engineering and Architecture, Trieste, Friuli-Venezia Giulia, Italy;
| | - Ginevra Begani Provinciali
- Istituto di Nanotecnologia Consiglio Nazionale delle Ricerche Sede di Roma , Rome, Italy.,Laboratoire d'Optique Appliquee, Palaiseau, Île-de-France, France;
| | | | - Alberto Mittone
- Consorcio para la Construccion Equipamiento y Explotacion del Laboratorio de Luz Sincrotron, Barcelona, Catalunya, Spain;
| | - Alberto Bravin
- Università degli Studi di Milano-Bicocca Facoltà di Scienze Matematiche Fisiche e Naturali, Dipartimento di Fisica U2 , Milano, Lombardia, Italy.,European Synchrotron Radiation Facility, Grenoble, Rhône-Alpes , France;
| | | | - Federico Giove
- Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Lazio, Italy;
| | - Alessia Cedola
- Istituto di Nanotecnologia Consiglio Nazionale delle Ricerche Sede di Roma , Rome, Italy;
| | | | - Michela Fratini
- Istituto di Nanotecnologia Consiglio Nazionale delle Ricerche Sede di Roma , Rome, Rome, Italy.,Santa Lucia Foundation, NEUROIMAGE, Roma, RM, Italy;
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3
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Palermo F, Pieroni N, Maugeri L, Provinciali GB, Sanna A, Bukreeva I, Massimi L, Catalano M, Olbinado MP, Fratini M, Uccelli A, Gigli G, Kerlero de Rosbo N, Balducci C, Cedola A. Corrigendum: X-ray Phase Contrast Tomography Serves Preclinical Investigation of Neurodegenerative Diseases. Front Neurosci 2021; 15:657368. [PMID: 33679320 PMCID: PMC7927203 DOI: 10.3389/fnins.2021.657368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 01/27/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Francesca Palermo
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy.,Dipartimento di Fisica, Università della Calabria, Rende, Italy
| | - Nicola Pieroni
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy.,Dipartimento di Morfogenesi e Ingegneria Tissutale, Sapienza Università di Roma, Rome, Italy
| | - Laura Maugeri
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | | | - Alessia Sanna
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | - Inna Bukreeva
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | | | | | - Margie P Olbinado
- Swiss Light Source, Paul Scherrer Institut X-ray Tomography Group, Villigen, Switzerland
| | | | - Antonio Uccelli
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy.,Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Giuseppe Gigli
- Institute of Nanotechnology, CNR, Università del Salento, Lecce, Italy
| | - Nicole Kerlero de Rosbo
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy
| | - Claudia Balducci
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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4
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Begani Provinciali G, Cedola A, Rochefoucauld ODL, Zeitoun P. Modelling of Phase Contrast Imaging with X-ray Wavefront Sensor and Partial Coherence Beams. Sensors (Basel) 2020; 20:s20226469. [PMID: 33198428 PMCID: PMC7697187 DOI: 10.3390/s20226469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/03/2020] [Accepted: 11/10/2020] [Indexed: 11/24/2022]
Abstract
The Hartmann wavefront sensor is able to measure, separately and in absolute, the real δ and imaginary part β of the X-ray refractive index. While combined with tomographic setup, the Hartman sensor opens many interesting opportunities behind the direct measurement of the material density. In order to handle the different ways of using an X-ray wavefront sensor in imaging, we developed a 3D wave propagation model based on Fresnel propagator. The model can manage any degree of spatial coherence of the source, thus enabling us to model experiments accurately using tabletop, synchrotron or X-ray free-electron lasers. Beam divergence is described in a physical manner consistent with the spatial coherence. Since the Hartmann sensor can detect phase and absorption variation with high sensitivity, a precise simulation tool is thus needed to optimize the experimental parameters. Examples are displayed.
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Affiliation(s)
- Ginevra Begani Provinciali
- LOA, ENSTA Paris, CNRS, Ecole Polytechnique IP Paris, 828 Boulevard des Maréchaux, 91120 Palaiseau, France
- Institute of Nanotechnology-CNR c/o Physics Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
- Correspondence: (G.B.P.); (P.Z.)
| | - Alessia Cedola
- Institute of Nanotechnology-CNR c/o Physics Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | | | - Philippe Zeitoun
- LOA, ENSTA Paris, CNRS, Ecole Polytechnique IP Paris, 828 Boulevard des Maréchaux, 91120 Palaiseau, France
- Correspondence: (G.B.P.); (P.Z.)
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5
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Palermo F, Pieroni N, Maugeri L, Provinciali GB, Sanna A, Massimi L, Catalano M, Olbinado MP, Bukreeva I, Fratini M, Uccelli A, Gigli G, Kerlero de Rosbo N, Balducci C, Cedola A. X-ray Phase Contrast Tomography Serves Preclinical Investigation of Neurodegenerative Diseases. Front Neurosci 2020; 14:584161. [PMID: 33240038 PMCID: PMC7680960 DOI: 10.3389/fnins.2020.584161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/09/2020] [Indexed: 12/30/2022] Open
Abstract
We report a qualitative study on central nervous system (CNS) damage that demonstrates the ability of X-ray phase contrast tomography (XPCT) to confirm data obtained with standard 2D methodology and permits the description of additional features that are not detected with 2D or other 3D techniques. In contrast to magnetic resonance or computed tomography, XPCT makes possible the high-resolution 3D imaging of soft tissues classically considered "invisible" to X-rays without the use of additional contrast agents, or without the need for intense processing of the tissue required by 2D techniques. Most importantly for studies of CNS diseases, XPCT enables a concomitant multi-scale 3D biomedical imaging of neuronal and vascular networks ranging from cells through to the CNS as a whole. In the last years, we have used XPCT to investigate neurodegenerative diseases, such as Alzheimer's disease (AD) and multiple sclerosis (MS), to shed light on brain damage and extend the observations obtained with standard techniques. Here, we show the cutting-edge ability of XPCT to highlight in 3D, concomitantly, vascular occlusions and damages, close associations between plaques and damaged vessels, as well as dramatic changes induced at neuropathological level by treatment in AD mice. We corroborate data on the well-known blood-brain barrier dysfunction in the animal model of MS, experimental autoimmune encephalomyelitis, and further show its extent throughout the CNS axis and at the level of the single vessel/capillary.
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Affiliation(s)
- Francesca Palermo
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy.,Dipartimento di Fisica, Università della Calabria, Rende, Italy
| | - Nicola Pieroni
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy.,Dipartimento di Morfogenesi e Ingegneria Tissutale, Sapienza Università di Roma, Rome, Italy
| | - Laura Maugeri
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | | | - Alessia Sanna
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | | | | | - Margie P Olbinado
- Swiss Light Source, Paul Scherrer Institut X-ray Tomography Group, Villigen, Switzerland
| | - Inna Bukreeva
- TomaLab, Institute of Nanotechnology, CNR, Rome, Italy
| | | | - Antonio Uccelli
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy.,Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Giuseppe Gigli
- Institute of Nanotechnology, CNR, Università del Salento, Lecce, Italy
| | - Nicole Kerlero de Rosbo
- Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine (DINOGMI), University of Genoa, Genoa, Italy
| | - Claudia Balducci
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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6
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Bukreeva I, Junemann O, Cedola A, Palermo F, Maugeri L, Begani Provinciali G, Pieroni N, Sanna A, Otlyga DA, Buzmakov A, Krivonosov Y, Zolotov D, Chukalina M, Ivanova A, Saveliev S, Asadchikov V, Fratini M. Investigation of the human pineal gland 3D organization by X-ray phase contrast tomography. J Struct Biol 2020; 212:107659. [PMID: 33152420 DOI: 10.1016/j.jsb.2020.107659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 10/23/2022]
Abstract
Pineal gland (PG) is a part of the human brain epithalamus that plays an important role in sleep, circadian rhythm, immunity, and reproduction. The calcium deposits and lesions in PG interfere with normal function of the organ and can be associated with different health disorders including serious neurological diseases. At the moment, the detailed mechanisms of PG calcifications and PG lesions formation as well as their involvement in pathological processes are not fully understood. The deep and comprehensive study of the structure of the uncut human PG with histological details, poses a stiff challenge to most imaging techniques, due to low spatial resolution, low visibility or to exceedingly aggressive sample preparation. Here, we investigate the whole uncut and unstained human post-mortem PGs by X-ray phase contrast tomography (XPCT). XPCT is an advanced 3D imaging technique, that permits to study of both soft and calcified tissue of a sample at different scales: from the whole organ to cell structure. In our research we simultaneously resolved 3D structure of parenchyma, vascular network and calcifications. Moreover, we distinguished structural details of intact and degenerated PG tissue. We discriminated calcifications with different structure, pinealocytes nuclei and the glial cells processes. All results were validated by histology. Our research clear demonstrated that XPCT is a potential tool for the high resolution 3D imaging of PG morphological features. This technique opens a new perspective to investigate PG dysfunction and understand the mechanisms of onset and progression of diseases involving the pineal gland.
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Affiliation(s)
- Inna Bukreeva
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; P.N. Lebedev Physical Institute, RAS, Leninskiy pr., 53 Moscow, Russian Federation.
| | - Olga Junemann
- FSSI Research Institute of Human Morphology, Tsyurupy Str 3, Moscow, Russian Federation.
| | - Alessia Cedola
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy.
| | - Francesca Palermo
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; Department of Physics, University of Calabria, I-87036 Arcavacata di Rende (CS), Italy
| | - Laura Maugeri
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; IRCCS Fondazione Santa Lucia, Via Ardeatina 352, Rome, Italy
| | - Ginevra Begani Provinciali
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; Laboratoire d'Optique appliquée, ENSTA Paris, Institut Polytechnique de Paris, 828 boulevard des Maréchaux, Palaiseau, France
| | - Nicola Pieroni
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; SAIMLAL Department, Sapienza University, via A. Scarpa 14, Rome, Italy
| | - Alessia Sanna
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy
| | - Dmitry A Otlyga
- FSSI Research Institute of Human Morphology, Tsyurupy Str 3, Moscow, Russian Federation
| | - Alexey Buzmakov
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation
| | - Yuri Krivonosov
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation
| | - Denis Zolotov
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation
| | - Marina Chukalina
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation; Smart Engines Service LLC, 60-letiya Oktyabrya pr., 9, Moscow, Russian Federation
| | - Anna Ivanova
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation
| | - Sergey Saveliev
- FSSI Research Institute of Human Morphology, Tsyurupy Str 3, Moscow, Russian Federation
| | - Victor Asadchikov
- FSRC «Crystallography and Photonics» RAS, Leninskiy pr., 59, Moscow, Russian Federation
| | - Michela Fratini
- Institute of Nanotechnology- CNR, Lecce Unit, Campus Ecotekne Via Monteroni, Lecce; Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; IRCCS Fondazione Santa Lucia, Via Ardeatina 352, Rome, Italy
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7
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Begani Provinciali G, Pieroni N, Bukreeva I, Fratini M, Massimi L, Maugeri L, Palermo F, Bardelli F, Mittone A, Bravin A, Gigli G, Gentile F, Fossaghi A, Riva N, Quattrini A, Cedola A. X-ray phase contrast tomography for the investigation of amyotrophic lateral sclerosis. J Synchrotron Radiat 2020; 27:1042-1048. [PMID: 33566014 PMCID: PMC7336179 DOI: 10.1107/s1600577520006785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 05/20/2020] [Indexed: 05/03/2023]
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disorder affecting motor neurons. Pre-clinical studies drive the development of animal models that well mimic ALS disorder and enable both the dissection of disease processes and an early assessment of therapy efficacy. A comprehensive knowledge of neuronal and vascular lesions in the brain and spinal cord is an essential factor to understand the development of the disease. Spatial resolution and bidimensional imaging are important drawbacks limiting current neuroimaging tools, while neuropathology relies on protocols that may alter tissue chemistry and structure. In contrast, recent ex vivo studies in mice demonstrated that X-ray phase-contrast tomography enables study of the 3D distribution of both vasculature and neuronal networks, without sample sectioning or use of staining. Here we present our findings on ex vivo SOD1G93A ALS mice spinal cord at a micrometric scale. An unprecedented direct quantification of neuro-vascular alterations at different stages of the disease is shown.
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Affiliation(s)
- Ginevra Begani Provinciali
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Laboratoire d’Optique Appliquée, ENSTA Paris Tech, 828 Boulevard des Maréchaux, 91120 Palaiseau, France
| | - Nicola Pieroni
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Inna Bukreeva
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Michela Fratini
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Fondazione Santa Lucia IRCCS, Via Ardeatina 306, 00179 Rome, Italy
| | - Lorenzo Massimi
- Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Laura Maugeri
- Fondazione Santa Lucia IRCCS, Via Ardeatina 306, 00179 Rome, Italy
| | - Francesca Palermo
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Dipartimento di Fisica, Università della Calabria, Via P. Bucci, Cubo 31 C, 87036 Arcavacata di Rende (Cosenza), Italy
| | - Fabrizio Bardelli
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Alberto Mittone
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Alberto Bravin
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38043 Grenoble, France
| | - Giuseppe Gigli
- CNR Nanotec, Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
- Dipartimento di Matematica e Fisica, Universita’ del Salento, via Arnesano, 73100 Lecce, Italy
| | - Francesco Gentile
- Neuropathology Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Andrea Fossaghi
- Neuropathology Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Nilo Riva
- Neuropathology Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Angelo Quattrini
- Neuropathology Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Alessia Cedola
- Physics Department ‘Sapienza’ University, CNR-Institute of Nanotechnology, Piazzale Aldo Moro 5, 00185 Rome, Italy
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