1
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Benkowska-Biernacka D, Mucha SG, Matczyszyn K. Three-Dimensional Imaging of Bioinspired Lipidic Mesophases Using Multicolored Light-Emitting Carbon Nanodots. J Phys Chem Lett 2024; 15:6383-6391. [PMID: 38859759 PMCID: PMC11194803 DOI: 10.1021/acs.jpclett.4c00788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/12/2024]
Abstract
Recent progress in the design of carbon nanostructures exhibiting strong multiphoton-excited emission opens new pathways to explore the self-organization of lipids found in living organisms. Phospholipid-based lyotropic myelin figures (MFs) are promising materials as simplified models of biomembranes due to their structural resemblance to a multilamellar sheath insulating the axon. This study demonstrates the possibility of selective labeling of MFs by strongly emitting multicolor phloroglucinol-derived carbon nanodots (PG CNDs). Such dopants are efficiently excited by visible and near-infrared light; therefore, one- and two-photon fluorescence microscopies are incorporated to gain 3D insights into the MFs. Combining nondestructive fluorescence microscopy and spectroscopy techniques along with polarized light microscopy gives details on the stability and morphology of lipidic mesophases. Our findings suggest that PG CNDs can be a viable and simple alternative to conventional fluorescent lipid stains to image biologically relevant phospholipid-based structures.
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Affiliation(s)
- Dominika Benkowska-Biernacka
- Institute
of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, ul. Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Sebastian G. Mucha
- Laboratoire
Charles Coulomb (L2C), UMR5221,
Université de Montpellier (CNRS), Campus Triolet, Place Eugene Bataillon, Montpellier 34095, France
| | - Katarzyna Matczyszyn
- Institute
of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, ul. Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
- International
Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM), Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
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2
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Wakolo SW, Syouji A, Sakai M, Nishiyama H, Inukai J. Coherent anti-Stokes Raman scattering spectroscopy system for observation of water molecules in anion exchange membrane. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 309:123875. [PMID: 38217988 DOI: 10.1016/j.saa.2024.123875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/30/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
Anion exchange membrane fuel cells (AEMFCs) provide one of the most feasible remedies to fuel cells' dependency on the dwindling Pt group catalysts. Nevertheless, AEMFCs still suffer reduced durability, which requires an in-depth understanding of their membranes. The low thermal endurance of the anion exchange membranes (AEMs) usually limits the direct application of powerful techniques, such as Raman spectroscopy. We sought to establish a system for coherent anti-Stokes Raman scattering (CARS) spectroscopy capable of taking measurements inside an AEM rapidly and accurately without photodamage. A 785 nm CARS system was newly developed to study the water species in an AEM (QPAF-4) located vertically in a fuel cell. From the results of water measurement in a QPAF-4 membrane, the OH-related region was deconvoluted into nine Gaussian peaks: Five H-bonded OH peaks, non-H-bonded OH, OH-, and two CH peaks. The H-bonded species increased with increasing relative humidity, but the other species remained constant. These results open unlimited possibilities for studying and comparing different AEMFCs, enabling more rapid technology optimization.
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Affiliation(s)
- Solomon Wekesa Wakolo
- Integrated Graduate School of Medicine, Engineering, and Agricultural Sciences, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Atsushi Syouji
- Center for Basic Education in Faculty of Engineering, University of Yamanashi, 4-4-37 Takeda, Kofu, Yamanashi 400-8510, Japan
| | - Masaru Sakai
- Faculty of Engineering, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37 Kofu, Yamanashi 400-8510, Japan
| | - Hiromichi Nishiyama
- Hydrogen and Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan.
| | - Junji Inukai
- Hydrogen and Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan; Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8510, Japan.
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3
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Blanke N, Chang S, Novoseltseva A, Wang H, Boas DA, Bigio IJ. Multiscale label-free imaging of myelin in human brain tissue with polarization-sensitive optical coherence tomography and birefringence microscopy. BIOMEDICAL OPTICS EXPRESS 2023; 14:5946-5964. [PMID: 38021128 PMCID: PMC10659784 DOI: 10.1364/boe.499354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/03/2023] [Accepted: 09/06/2023] [Indexed: 12/01/2023]
Abstract
The combination of polarization-sensitive optical coherence tomography (PS-OCT) and birefringence microscopy (BRM) enables multiscale assessment of myelinated axons in postmortem brain tissue, and these tools are promising for the study of brain connectivity and organization. We demonstrate label-free imaging of myelin structure across the mesoscopic and microscopic spatial scales by performing serial-sectioning PS-OCT of a block of human brain tissue and periodically sampling thin sections for high-resolution imaging with BRM. In co-registered birefringence parameter maps, we observe good correspondence and demonstrate that BRM enables detailed validation of myelin (hence, axonal) organization, thus complementing the volumetric information content of PS-OCT.
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Affiliation(s)
- Nathan Blanke
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, USA
| | - Shuaibin Chang
- Department of Electrical & Computer Engineering, Boston University, 8 St. Mary’s St., Boston, MA 02215, USA
| | - Anna Novoseltseva
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, USA
| | - Hui Wang
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, 149 13th St., Charlestown, MA 02129, USA
| | - David A. Boas
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, USA
| | - Irving J. Bigio
- Department of Biomedical Engineering, Boston University, 44 Cummington Mall, Boston, MA 02215, USA
- Department of Electrical & Computer Engineering, Boston University, 8 St. Mary’s St., Boston, MA 02215, USA
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4
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Chrabąszcz K, Kołodziej M, Roman M, Pięta E, Piergies N, Rudnicka-Czerwiec J, Bartosik-Psujek H, Paluszkiewicz C, Cholewa M, Kwiatek WM. Carotenoids contribution in rapid diagnosis of multiple sclerosis by Raman spectroscopy. Biochim Biophys Acta Gen Subj 2023:130395. [PMID: 37271406 DOI: 10.1016/j.bbagen.2023.130395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/28/2023] [Accepted: 05/29/2023] [Indexed: 06/06/2023]
Abstract
Rapid and accurate diagnosis of any illness determines the success of treatment. The same applies to multiple sclerosis (MS), chronic, inflammatory, and neurodegenerative diseases (ND) of the central nervous system (CNS). Unfortunately, the definitive diagnosis of MS is prolonged and involves mainly clinical symptoms observation and magnetic resonance imaging (MRI) of the CNS. However, as we previously reported, Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy shed new light on the minimally invasive, label-free, and rapid diagnosis of this illness through blood fraction. Herein we introduce Raman spectroscopy coupled with chemometric analysis to provide more detailed information about the biochemical changes behind MS. This pilot study demonstrates that mentioned combination may provide a new diagnostic biomarker and bring closer to rapid MS diagnosis. It has been shown that Raman spectroscopy provides lipid and carotenoid molecules as useful biomarkers which may be applied for both diagnosis and treatment monitoring.
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Affiliation(s)
- Karolina Chrabąszcz
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland.
| | - Magdalena Kołodziej
- Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-315 Rzeszow, Poland
| | - Maciej Roman
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland; SOLARIS, National Synchrotron Radiation Centre, Jagiellonian University, Czerwone Maki 98, 30-392, Krakow, Poland
| | - Ewa Pięta
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
| | - Natalia Piergies
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
| | - Julia Rudnicka-Czerwiec
- Department of Neurology, Institute of Medical Sciences, Medical College of Rzeszow University, Warzywna 1a, 35-310 Rzeszow, Poland
| | - Halina Bartosik-Psujek
- Department of Neurology, Institute of Medical Sciences, Medical College of Rzeszow University, Warzywna 1a, 35-310 Rzeszow, Poland
| | - Czesława Paluszkiewicz
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
| | - Marian Cholewa
- Institute of Physics, College of Natural Sciences, University of Rzeszow, Pigonia Street 1, 35-959 Rzeszow, Poland
| | - Wojciech M Kwiatek
- Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Krakow, Poland
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5
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Morizet J, Olivier N, Mahou P, Boutillon A, Stringari C, Beaurepaire E. Third harmonic imaging contrast from tubular structures in the presence of index discontinuity. Sci Rep 2023; 13:7850. [PMID: 37188736 DOI: 10.1038/s41598-023-34528-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/03/2023] [Indexed: 05/17/2023] Open
Abstract
Accurate interpretation of third harmonic generation (THG) microscopy images in terms of sample optical properties and microstructure is generally hampered by the presence of excitation field distortions resulting from sample heterogeneity. Numerical methods that account for these artifacts need to be established. In this work, we experimentally and numerically analyze the THG contrast obtained from stretched hollow glass pipettes embedded in different liquids. We also characterize the nonlinear optical properties of 2,2[Formula: see text]-thiodiethanol (TDE), a water-soluble index-matching medium. We find that index discontinuity not only changes the level and modulation amplitude of polarization-resolved THG signals, but can even change the polarization direction producing maximum THG near interfaces. We then show that a finite-difference time-domain (FDTD) modeling strategy can accurately account for contrast observed in optically heterogeneous samples, whereas reference Fourier-based numerical approaches are accurate only in the absence of index mismatch. This work opens perspectives for interpreting THG microscopy images of tubular objects and other geometries.
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Affiliation(s)
- Joséphine Morizet
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
- SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9SS, UK
| | - Nicolas Olivier
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
| | - Pierre Mahou
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
| | - Arthur Boutillon
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
- Cluster of Excellence Physics of Life, TU Dresden, Dresden, 01062, Germany
| | - Chiara Stringari
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
| | - Emmanuel Beaurepaire
- Laboratory for Optics and Biosciences (LOB), CNRS, INSERM, École polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France.
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6
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Buttigieg E, Scheller A, El Waly B, Kirchhoff F, Debarbieux F. Contribution of Intravital Neuroimaging to Study Animal Models of Multiple Sclerosis. Neurotherapeutics 2023; 20:22-38. [PMID: 36653665 PMCID: PMC10119369 DOI: 10.1007/s13311-022-01324-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2022] [Indexed: 01/20/2023] Open
Abstract
Multiple sclerosis (MS) is a complex and long-lasting neurodegenerative disease of the central nervous system (CNS), characterized by the loss of myelin within the white matter and cortical fibers, axonopathy, and inflammatory responses leading to consequent sensory-motor and cognitive deficits of patients. While complete resolution of the disease is not yet a reality, partial tissue repair has been observed in patients which offers hope for therapeutic strategies. To address the molecular and cellular events of the pathomechanisms, a variety of animal models have been developed to investigate distinct aspects of MS disease. Recent advances of multiscale intravital imaging facilitated the direct in vivo analysis of MS in the animal models with perspective of clinical transfer to patients. This review gives an overview of MS animal models, focusing on the current imaging modalities at the microscopic and macroscopic levels and emphasizing the importance of multimodal approaches to improve our understanding of the disease and minimize the use of animals.
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Affiliation(s)
- Emeline Buttigieg
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, 66421, Homburg, Germany
- Institut des Neurosciences de la Timone (INT), Aix-Marseille Université, CNRS UMR7289, 13005, Marseille, France
- Centre Européen de Recherche en Imagerie Médicale (CERIMED), Aix-Marseille Université, Marseille, France
| | - Anja Scheller
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, 66421, Homburg, Germany
| | - Bilal El Waly
- Institut des Neurosciences de la Timone (INT), Aix-Marseille Université, CNRS UMR7289, 13005, Marseille, France
- Centre Européen de Recherche en Imagerie Médicale (CERIMED), Aix-Marseille Université, Marseille, France
| | - Frank Kirchhoff
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, 66421, Homburg, Germany
| | - Franck Debarbieux
- Institut des Neurosciences de la Timone (INT), Aix-Marseille Université, CNRS UMR7289, 13005, Marseille, France.
- Centre Européen de Recherche en Imagerie Médicale (CERIMED), Aix-Marseille Université, Marseille, France.
- Institut Universitaire de France (IUF), Paris, France.
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7
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Gasecka P, Balla NK, Sison M, Brasselet S. Lipids-Fluorophores Interactions Probed by Combined Nonlinear Polarized Microscopy. J Phys Chem B 2021; 125:13718-13729. [PMID: 34902969 DOI: 10.1021/acs.jpcb.1c07866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Studying the structural dynamics of lipid membranes requires methods that can address both microscopic and macroscopic characteristics. Fluorescence imaging is part of the most used techniques to study membrane properties in various systems from artificial membranes to cells: It benefits from a high sensitivity to local properties such as polarity and molecular orientational order, with a high spatial resolution down to the single-molecule level. The influence of embedded fluorescent lipid probes on the lipid membrane molecules is however poorly known and relies most often on molecular dynamics simulations, due to the challenges faced by experimental approaches to address the molecular-scale dimension of this question. In this work we develop an optical microscopy imaging method to probe the effect of fluorophores embedded in the membrane as lipid probes, on their lipid environment, with a lateral resolution of a few hundreds of nanometers. We combine polarized-nonlinear microscopy contrasts that can independently address the lipid probe, by polarized two-photon fluorescence, and the membrane lipids, by polarized coherent Raman scattering. Using trimethylamino derivative 1-(4-trimethylammonium-phenyl)-6-phenyl-1,3,5-hexatriene (TMA-DPH) and di-8-butyl-amino-naphthyl-ethylene-pyridinium-propyl-sulfonate (di-8-ANEPPS) as model probes, we show that both probes tend to induce an orientational disorder of their surrounding lipid CH-bonds in 1,2-dipalmitoylphosphatidylcholine (DPPC) lipids environments, while there is no noticeable effect in more disordered 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) lipid membranes.
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Affiliation(s)
- Paulina Gasecka
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France
| | - Naveen K Balla
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France
| | - Miguel Sison
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France
| | - Sophie Brasselet
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France
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8
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Xu S, Camp CH, Lee YJ. Coherent
anti‐Stokes
Raman scattering microscopy for polymers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shuyu Xu
- Biosystems and Biomaterials Division National Institute of Standards and Technology Gaithersburg Maryland USA
| | - Charles H. Camp
- Biosystems and Biomaterials Division National Institute of Standards and Technology Gaithersburg Maryland USA
| | - Young Jong Lee
- Biosystems and Biomaterials Division National Institute of Standards and Technology Gaithersburg Maryland USA
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Morgan ML, Brideau C, Teo W, Caprariello AV, Stys PK. Label-free assessment of myelin status using birefringence microscopy. J Neurosci Methods 2021; 360:109226. [PMID: 34052286 DOI: 10.1016/j.jneumeth.2021.109226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/28/2021] [Accepted: 05/19/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Label-free methods for quantifying myelination can reduce expense, time, and variability in results when examining tissue white matter pathology. NEW METHOD We sought to determine whether the optical birefringent properties of myelin could be exploited to determine myelination status of white matter in tissue sections. Sections of forebrains of mice (normal, and treated with cuprizone to cause demyelination) were examined by birefringence using a birefringence imaging system (Thorlabs LCC7201), and results compared with sections stained using Luxol Fast Blue. RESULTS Quantitative birefringence analysis of myelin was not only reliable in detecting demyelination, but also showed abnormalities that preceded myelin loss in cuprizone-treated mice. COMPARISON WITH EXISTING METHODS Subtle myelin pathology visible with electron microscopy but not with conventional histopathological staining was readily detected with birefringence microscopy. CONCLUSIONS Birefringence imaging provides a rapid, label-free method of analyzing the myelin content and nanostructural status in longitudinal white matter structures, being sensitive to subtle myelin changes that precede overt pathological damage.
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Affiliation(s)
- Megan Lynn Morgan
- University of Calgary, Hotchkiss Brain Institute, Calgary Cumming School of Medicine, Department of Clinical Neurosciences, 3330 Hospital Drive N.W. HRIC 1B37A, Calgary, AB, T2N 4N1, Canada.
| | - Craig Brideau
- University of Calgary, Hotchkiss Brain Institute, Calgary Cumming School of Medicine, Department of Clinical Neurosciences, 3330 Hospital Drive N.W. HRIC 1B37A, Calgary, AB, T2N 4N1, Canada.
| | - Wulin Teo
- University of Calgary, Hotchkiss Brain Institute, Calgary Cumming School of Medicine, Department of Clinical Neurosciences, 3330 Hospital Drive N.W. HRIC 1B37A, Calgary, AB, T2N 4N1, Canada.
| | - Andrew Vincent Caprariello
- University of Calgary, Hotchkiss Brain Institute, Calgary Cumming School of Medicine, Department of Clinical Neurosciences, 3330 Hospital Drive N.W. HRIC 1B37A, Calgary, AB, T2N 4N1, Canada.
| | - Peter K Stys
- University of Calgary, Hotchkiss Brain Institute, Calgary Cumming School of Medicine, Department of Clinical Neurosciences, 3330 Hospital Drive N.W. HRIC 1B37A, Calgary, AB, T2N 4N1, Canada.
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10
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Blanke N, Go V, Rosene DL, Bigio IJ. Quantitative birefringence microscopy for imaging the structural integrity of CNS myelin following circumscribed cortical injury in the rhesus monkey. NEUROPHOTONICS 2021; 8:015010. [PMID: 33763502 PMCID: PMC7984970 DOI: 10.1117/1.nph.8.1.015010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 03/04/2021] [Indexed: 05/12/2023]
Abstract
Significance: Myelin breakdown is likely a key factor in the loss of cognitive and motor function associated with many neurodegenerative diseases. Aim: New methods for imaging myelin structure are needed to characterize and quantify the degradation of myelin in standard whole-brain sections of nonhuman primates and in human brain. Approach: Quantitative birefringence microscopy (qBRM) is a label-free technique for rapid histopathological assessment of myelin structural breakdown following cortical injury in rhesus monkeys. Results: We validate birefringence microscopy for structural imaging of myelin in rhesus monkey brain sections, and we demonstrate the power of qBRM by characterizing the breakdown of myelin following cortical injury, as a model of stroke, in the motor cortex. Conclusions: Birefringence microscopy is a valuable tool for histopathology of myelin and for quantitative assessment of myelin structure. Compared to conventional methods, this label-free technique is sensitive to subtle changes in myelin structure, is fast, and enables more quantitative assessment, without the variability inherent in labeling procedures such as immunohistochemistry.
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Affiliation(s)
- Nathan Blanke
- Boston University, Neurophotonics Center, Department of Biomedical Engineering, Boston, Massachusetts, United States
| | - Veronica Go
- Boston University School of Medicine, Department of Anatomy and Neurobiology, Boston, Massachusetts, United States
| | - Douglas L. Rosene
- Boston University School of Medicine, Department of Anatomy and Neurobiology, Boston, Massachusetts, United States
| | - Irving J. Bigio
- Boston University, Neurophotonics Center, Department of Biomedical Engineering, Boston, Massachusetts, United States
- Boston University, Department of Electrical and Computer Engineering, Boston, Massachusetts, United States
- Address all correspondence to Irving J. Bigio,
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11
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Kedarisetti P, Haven NJM, Restall BS, Martell MT, Zemp RJ. Label-free lipid contrast imaging using non-contact near-infrared photoacoustic remote sensing microscopy. OPTICS LETTERS 2020; 45:4559-4562. [PMID: 32797009 DOI: 10.1364/ol.397614] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Histopathology of lipid-rich tissues is often a difficult endeavor, owing to the limited tissue processing workflows that can appropriately preserve tissue while keeping fatty deposits intact. Here, we present the first usage of near-infrared (NIR) photoacoustic remote sensing (PARS) to achieve imaging contrast from lipids without the need for exogenous stains or labels. In our system, the facile production of 1225 nm excitation pulses is achieved by the stimulated Raman scattering of a 1064 nm source propagating through an optical fiber. PARS-based detection is achieved by monitoring the change in the scattering profile of a co-aligned 1550 nm continuous-wave interrogation beam in response to absorption of the 1225 nm light by lipids. Our non-contact, reflection-mode approach can achieve a FWHM resolution of up to 0.96 µm and signal-to-noise ratios as high as 45 dB from carbon fibers and 9.7 dB from a lipid phantom. NIR-PARS offers a promising approach to image lipid-rich samples with a simplified workflow.
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12
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El Waly B, Buttigieg E, Karakus C, Brustlein S, Debarbieux F. Longitudinal Intravital Microscopy Reveals Axon Degeneration Concomitant With Inflammatory Cell Infiltration in an LPC Model of Demyelination. Front Cell Neurosci 2020; 14:165. [PMID: 32655371 PMCID: PMC7324938 DOI: 10.3389/fncel.2020.00165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/15/2020] [Indexed: 11/13/2022] Open
Abstract
Demyelination and axon degeneration are major events in all neurodegenerative diseases, including multiple sclerosis. Intoxication of oligodendrocytes with lysophosphatidylcholine (LPC) is often used as a selective model of focal and reversible demyelination thought to have no incidence for neurons. To characterize the cascade of cellular events involved in LPC-induced demyelination, we have combined intravital coherent antistoke Raman scattering microscopy with intravital two-photon fluorescence microscopy in multicolor transgenic reporter mice. Moreover, taking advantage of a unique technique of spinal glass window implantation, we here provide the first longitudinal description of cell dynamics in the same volume of interest over weeks after insults. We have detected several patterns of axon–myelin interactions and classified them in early and advanced events. Unexpectedly, we have found that oligodendrocyte damages are followed by axon degeneration within 2 days after LPC incubation, and this degeneration is amplified after the recruitment of the peripheral proinflammatory cells at day 4. Beyond day 7, the recovery of axon number and myelin takes 3 more weeks postlesion and involves a new wave of anti-inflammatory innate immune cells at day 14. Therefore, recurrent imaging over several weeks suggests an important role of peripheral immune cells in regulating both the axonal and oligodendroglial fates and thereby the remyelination status. Better understanding the recruitment of peripheral immune cells during demyelinating events should help to improve diagnosis and therapy.
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Affiliation(s)
- Bilal El Waly
- Institut des Neurosciences de la Timone, UMR 7289, CNRS, Aix-Marseille Université, Marseille, France.,Centre Européen de Recherche en Imagerie Médicale, Aix-Marseille Université, Marseille, France
| | - Emeline Buttigieg
- Institut des Neurosciences de la Timone, UMR 7289, CNRS, Aix-Marseille Université, Marseille, France.,Centre Européen de Recherche en Imagerie Médicale, Aix-Marseille Université, Marseille, France.,Molecular Physiology, Center for Integrative Physiology and Molecular Medicine, University of Saarland, Homburg, Germany
| | - Cem Karakus
- Institut des Neurosciences de la Timone, UMR 7289, CNRS, Aix-Marseille Université, Marseille, France.,Centre Européen de Recherche en Imagerie Médicale, Aix-Marseille Université, Marseille, France
| | - Sophie Brustlein
- Centre Européen de Recherche en Imagerie Médicale, Aix-Marseille Université, Marseille, France.,CNRS, IBDM, Turing Center for Living System, Aix-Marseille Université, Marseille, France
| | - Franck Debarbieux
- Institut des Neurosciences de la Timone, UMR 7289, CNRS, Aix-Marseille Université, Marseille, France.,Centre Européen de Recherche en Imagerie Médicale, Aix-Marseille Université, Marseille, France
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Payne TD, Moody AS, Wood AL, Pimiento PA, Elliott JC, Sharma B. Raman spectroscopy and neuroscience: from fundamental understanding to disease diagnostics and imaging. Analyst 2020; 145:3461-3480. [PMID: 32301450 DOI: 10.1039/d0an00083c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neuroscience would directly benefit from more effective detection techniques, leading to earlier diagnosis of disease. The specificity of Raman spectroscopy is unparalleled, given that a molecular fingerprint is attained for each species. It also allows for label-free detection with relatively inexpensive instrumentation, minimal sample preparation, and rapid sample analysis. This review summarizes Raman spectroscopy-based techniques that have been used to advance the field of neuroscience in recent years.
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Affiliation(s)
- Taylor D Payne
- University of Tennessee, Knoxville, 1420 Circle Drive, Knoxville, TN 37996, USA.
| | - Amber S Moody
- National Center of Toxicological Research, 3900 NCTR Rd, Jefferson, AR 72079, USA
| | - Avery L Wood
- University of Tennessee, Knoxville, 1420 Circle Drive, Knoxville, TN 37996, USA.
| | - Paula A Pimiento
- University of Tennessee, Knoxville, 1420 Circle Drive, Knoxville, TN 37996, USA.
| | - James C Elliott
- University of Tennessee, Knoxville, 1420 Circle Drive, Knoxville, TN 37996, USA.
| | - Bhavya Sharma
- University of Tennessee, Knoxville, 1420 Circle Drive, Knoxville, TN 37996, USA.
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Okotrub KA, Zykova VA, Adichtchev SV, Surovtsev NV. Deciphering the orientation of lipid molecules by principal component analysis of Raman mapping data. Analyst 2020; 145:1466-1472. [DOI: 10.1039/c9an01499c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Raman spectroscopy reveals the orientational ordering of dry and hydrated phospholipids.
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Affiliation(s)
- Konstantin A. Okotrub
- Institute of Automation and Electrometry
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Valeriya A. Zykova
- Institute of Automation and Electrometry
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Sergey V. Adichtchev
- Institute of Automation and Electrometry
- Russian Academy of Sciences
- Novosibirsk
- Russia
| | - Nikolay V. Surovtsev
- Institute of Automation and Electrometry
- Russian Academy of Sciences
- Novosibirsk
- Russia
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15
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Jones RR, Hooper DC, Zhang L, Wolverson D, Valev VK. Raman Techniques: Fundamentals and Frontiers. NANOSCALE RESEARCH LETTERS 2019; 14:231. [PMID: 31300945 PMCID: PMC6626094 DOI: 10.1186/s11671-019-3039-2] [Citation(s) in RCA: 222] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 06/03/2019] [Indexed: 05/19/2023]
Abstract
Driven by applications in chemical sensing, biological imaging and material characterisation, Raman spectroscopies are attracting growing interest from a variety of scientific disciplines. The Raman effect originates from the inelastic scattering of light, and it can directly probe vibration/rotational-vibration states in molecules and materials. Despite numerous advantages over infrared spectroscopy, spontaneous Raman scattering is very weak, and consequently, a variety of enhanced Raman spectroscopic techniques have emerged. These techniques include stimulated Raman scattering and coherent anti-Stokes Raman scattering, as well as surface- and tip-enhanced Raman scattering spectroscopies. The present review provides the reader with an understanding of the fundamental physics that govern the Raman effect and its advantages, limitations and applications. The review also highlights the key experimental considerations for implementing the main experimental Raman spectroscopic techniques. The relevant data analysis methods and some of the most recent advances related to the Raman effect are finally presented. This review constitutes a practical introduction to the science of Raman spectroscopy; it also highlights recent and promising directions of future research developments.
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Affiliation(s)
- Robin R. Jones
- Turbomachinery Research Centre, University of Bath, Bath, BA2 7AY UK
| | - David C. Hooper
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY UK
| | - Liwu Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433 China
| | - Daniel Wolverson
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY UK
| | - Ventsislav K. Valev
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY UK
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16
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Brideau C, Poon KWC, Colarusso P, Stys PK. Excitation parameters optimized for coherent anti-Stokes Raman scattering imaging of myelinated tissue. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-8. [PMID: 31007003 PMCID: PMC6990057 DOI: 10.1117/1.jbo.24.4.046502] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/25/2019] [Indexed: 05/08/2023]
Abstract
Coherent anti-Stokes Raman scattering (CARS) generates a strong label-free signal in the long wavenumber C─H stretching region. Lipid-rich myelinated tissues, such as brain and spinal cord, would appear to be ideal subjects for imaging with CARS laser-scanning microscopy. However, the highly ordered, biochemically complex, and highly scattering nature of such tissues complicate the use of the technique. A CARS microscopy approach is presented that overcomes the challenges of imaging myelinated tissue to achieve chemically and orientationally sensitive high-resolution images.
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Affiliation(s)
- Craig Brideau
- University of Calgary, Hotchkiss Brain Institute, Cumming School of Medicine, Department of Clinical Neurosciences, Calgary, Alberta, Canada
- Address all correspondence to Craig Brideau, E-mail:
| | - Kelvin W. C. Poon
- University of Calgary, Hotchkiss Brain Institute, Cumming School of Medicine, Department of Clinical Neurosciences, Calgary, Alberta, Canada
| | - Pina Colarusso
- University of Calgary, Department of Physiology and Pharmacology, Calgary, Alberta, Canada
- University of Calgary, Snyder Institute for Chronic Diseases, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Peter K. Stys
- University of Calgary, Hotchkiss Brain Institute, Cumming School of Medicine, Department of Clinical Neurosciences, Calgary, Alberta, Canada
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Hajjar H, Boukhaddaoui H, Rizgui A, Sar C, Berthelot J, Perrin-Tricaud C, Rigneault H, Tricaud N. Label-free non-linear microscopy to measure myelin outcome in a rodent model of Charcot-Marie-Tooth diseases. JOURNAL OF BIOPHOTONICS 2018; 11:e201800186. [PMID: 30091529 DOI: 10.1002/jbio.201800186] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/27/2018] [Accepted: 08/07/2018] [Indexed: 05/21/2023]
Abstract
Myelin sheath produced by Schwann cells covers and nurtures axons to speed up nerve conduction in peripheral nerves. Demyelinating peripheral neuropathies result from the loss of this myelin sheath and so far, no treatment exists to prevent Schwann cell demyelination. One major hurdle to design a therapy for demyelination is the lack of reliable measures to evaluate the outcome of the treatment on peripheral myelin in patients but also in living animal models. Non-linear microscopy techniques which include second harmonic generation (SHG), third harmonic generation (THG) and coherent anti-stokes Raman scattering (CARS) were used to image myelin ex vivo and in vivo in the sciatic nerve of healthy and demyelinating mice and rats. SHG did not label myelin and THG required too much light power to be compatible with live imaging. CARS is the most reliable of these techniques for in vivo imaging and it allows for the analysis and quantification of myelin defects in a rat model of CMT1A disease. This microscopic technique therefore constitutes a promising, reliable and robust readout tool in the development of new treatments for demyelinating peripheral neuropathies.
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Affiliation(s)
- Helene Hajjar
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
| | - Hassan Boukhaddaoui
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
- Montpellier Ressources Imagerie (MRI), Montpellier, France
| | - Amel Rizgui
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
| | - Chamroeun Sar
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
- Montpellier Ressources Imagerie (MRI), Montpellier, France
| | - Jade Berthelot
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
| | - Claire Perrin-Tricaud
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
| | - Herve Rigneault
- CNRS, École Centrale Marseille, Institut Fresnel, Aix-Marseille Université, Marseille, France
| | - Nicolas Tricaud
- Institut des Neurosciences de Montpellier, Université de Montpellier, Montpellier, France
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Picardi G, Spalloni A, Generosi A, Paci B, Mercuri NB, Luce M, Longone P, Cricenti A. Tissue degeneration in ALS affected spinal cord evaluated by Raman spectroscopy. Sci Rep 2018; 8:13110. [PMID: 30166600 PMCID: PMC6117324 DOI: 10.1038/s41598-018-31469-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/14/2018] [Indexed: 12/11/2022] Open
Abstract
The Raman spectral features from spinal cord tissue sections of transgenic, ALS model mice and non-transgenic mice were compared using 457 nm excitation line, profiting from the favourable signal intensity obtained in the molecular fingerprint region at this wavelength. Transverse sections from four SOD1G93A mice at 75 days and from two at 90 days after birth were analysed and compared with sections of similarly aged control mice. The spectra acquired within the grey matter of tissue sections from the diseased mice is markedly different from the grey matter signature of healthy mice. In particular, we observe an intensity increase in the spectral windows 450-650 cm-1 and 1050-1200 cm-1, accompanied by an intensity decrease in the lipid contributions at ~1660 cm-1, ~1440 cm-1 and ~1300 cm-1. Axons demyelination, loss of lipid structural order and the proliferation and aggregation of branched proteoglycans are related to the observed spectral modifications. Furthermore, the grey and white matter components of the spinal cord sections could also be spectrally distinguished, based on the relative intensity of characteristic lipid and protein bands. Raman spectra acquired from the white matter regions of the SOD1G93A mice closely resembles those from control mice.
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Affiliation(s)
- Gennaro Picardi
- CNR Istituto Struttura della Materia, Via Fosso del Cavaliere 100, I-00133, Rome, Italy.
| | - Alida Spalloni
- Laboratorio di Neurobiologia Molecolare, Fondazione Santa Lucia IRCCS, Via del Fosso di Fiorano 64/65, I-00143, Rome, Italy
| | - Amanda Generosi
- CNR Istituto Struttura della Materia, Via Fosso del Cavaliere 100, I-00133, Rome, Italy
| | - Barbara Paci
- CNR Istituto Struttura della Materia, Via Fosso del Cavaliere 100, I-00133, Rome, Italy
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, Neurology UOC, University of Rome "Tor Vergata", Fondazione PTV, Policlinico"Tor Vergata", Viale Oxford 81, I-00133, Rome, Italy
- Department of Experimental Neuroscience, Fondazione Santa Lucia IRCCS, Via del Fosso di Fiorano 64/65, I-00143, Rome, Italy
| | - Marco Luce
- CNR Istituto Struttura della Materia, Via Fosso del Cavaliere 100, I-00133, Rome, Italy
| | - Patrizia Longone
- Laboratorio di Neurobiologia Molecolare, Fondazione Santa Lucia IRCCS, Via del Fosso di Fiorano 64/65, I-00143, Rome, Italy
| | - Antonio Cricenti
- CNR Istituto Struttura della Materia, Via Fosso del Cavaliere 100, I-00133, Rome, Italy
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Cohen-Adad J. Microstructural imaging in the spinal cord and validation strategies. Neuroimage 2018; 182:169-183. [PMID: 29635029 DOI: 10.1016/j.neuroimage.2018.04.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 03/02/2018] [Accepted: 04/06/2018] [Indexed: 12/13/2022] Open
Abstract
In vivo histology using magnetic resonance imaging (MRI) is a newly emerging research field that aims to non-invasively characterize tissue microstructure. The implications of in vivo histology are many, from discovering novel biomarkers to studying human development, to providing tools for disease diagnosis and monitoring the effects of novel treatments on tissue. This review focuses on quantitative MRI (qMRI) techniques that are used to map spinal cord microstructure. Opening with a rationale for non-invasive imaging of the spinal cord, this article continues with a brief overview of the existing MRI techniques for axon and myelin imaging, followed by the specific challenges and potential solutions for acquiring and processing such data. The final part of this review focuses on histological validation, with suggested tissue preparation, acquisition and processing protocols for large-scale microscopy.
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Affiliation(s)
- J Cohen-Adad
- NeuroPoly Lab, Institute of Biomedical Engineering, Polytechnique Montreal, Montreal, QC, Canada; Functional Neuroimaging Unit, CRIUGM, Université de Montréal, Montreal, QC, Canada.
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