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2. Artificial intelligence to predict clinical disability in patients with multiple sclerosis using FLAIR MRI

Author

Brochet, B., Casey, R., Cotton, F., De Sèze, J., Douek, P., Guillemin, F., Laplaud, D., Lebrun-Frenay, C., Mansuy, L., Moreau, T., Olaiz, J., Pelletier, J., Rigaud-Bully, C., Stankoff, B., Vukusic, S., Marignier, R., Debouverie, M., Edan, G., Ciron, J., Ruet, A., Collongues, N., Lubetzki, C., Vermersch, P., Labauge, P., Defer, G., Cohen, M., Fromont, A., Wiertlewsky, S., Berger, E., Clavelou, P., Audoin, B., Giannesini, C., Gout, O., Thouvenot, E., Heinzlef, O., Al-Khedr, A., Bourre, B., Casez, O., Cabre, P., Montcuquet, A., Créange, A., Camdessanché, J.-P., Faure, J., Maurousset, A., Patry, I., Hankiewicz, K., Pottier, C., Maubeuge, N., Labeyrie, C., Nifle, C., Ameli, R., Anxionnat, R., Attye, A., Bannier, E., Barillot, C., Ben Salem, D., Boncoeur-Martel, M.-P., Bonneville, F., Boutet, C., Brisset, J.-C., Cervenanski, F., Claise, B., Commowick, O., Constans, J.-M., Dardel, P., Desal, H., Dousset, Vincent, Durand-Dubief, F., Ferre, J.-C., Gerardin, E., Glattard, T., Grand, S., Grenier, T., Guillevin, R., Guttmann, C., Krainik, A., Kremer, S., Lion, S., Menjot de Champfleur, N., Mondot, L., Outteryck, O., Pyatigorskaya, N., Pruvo, J.-P., Rabaste, S., Ranjeva, J.-P., Roch, J.-A., Sadik, J.C., Sappey-Marinier, D., Savatovsky, J., Tanguy, J.-Y., Tourbah, A., Tourdias, T., Roca, P., Colas, L., Tucholka, A., Rubini, P., Cackowski, S., Ding, J., Budzik, J.-F., Renard, F., Doyle, S., Barbier, E.L., Bousaid, I., Lassau, N., and Verclytte, S.

Published
2020
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3. Urinary tract infections and multiple sclerosis: Recommendations from the French Multiple Sclerosis Society

Author

Donzé, C., Papeix, C., Lebrun-Frénay, C., Collongues, N., de Seze, M., Dinh, A., Even, A., Scheiber-Nogueira, C., Bensa, C., Bourre, B., Carra-Dallière, C., Ciron, J., Cohen, M., Guennoc, A.M., Louapre, C., Lebreton, F., Michel, L., Maillart, E., Audoin, B., Ayrignac, X., Bernady, P., Brochet, B., Clavelou, P., Colamarino, R., Declemy, A., de Seze, J., Derache, N., Faucheux, J.-M., Heinzlef, O., Labauge, P., Laplaud, D., Lepage, E., Leray, E., Magy, L., Mathey, G., Mekies, C., Mondain, V., Planque, E., Pelletier, J., Pittion, S., Stankhof, B., Tournaire, P., Thouvenot, E., Vukusic, S., Wiertlevski, S., Zephir, H., Alchaar, H., Androdias, G., Benazet, M., Bensmail, D., Biotti, D., Blanchard-Dauphin, A., Bonnan, M., Boutière, C., Branger, P., Bresch, S., Bru, J.-P., Camdessanché, J.-P., Castel Canal, E., Coustans, M., Casez, O., Castan, B., Creange, A., Creisson, E., De Broucker, T., Depaz, R., Douay, X., Dulau, C., Durand-Dubief, F., Fagniez, O., Faucher, M., Floch, A., Fournier, M., Fromont, A., Gallien, P., Gamé, X., Gault, D., Gayou, A., Giroux, M., Gout, O., Grimaud, J., Hautecoeur, P., Kerbrat, A., Kremer, L., Kwiatkowski, A., Labeyrie, C., Lachaud, S., Lanctin-Garcia, C., Lanotte, L., Manchon, E., Maurousset, A., Milor, A.-M., Moisset, X., Mont-Cuquet, A., Moreau, T., Ouallet, J.-C., Patry, I., Peaureaux, D., Pouget, M.-C., Pourcher Martinez, V., Radot, C., Ruet, A., Saint-Val, C., Salmon, A., Taithe, F., Tatevin, P., Vaillant, M., Stahl, J.-P., Vuoto, F., Zaenker, C., and Lebrun-Frenay, C.

Published
2020
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4. Immunization and multiple sclerosis: Recommendations from the French Multiple Sclerosis Society

Author

Abadie, V., Achour, C., Ader, F., Alchaar, H., Alkhedr, A., Andreux, F., Androdias, G., Arjmand, R., Audoin, B., Audry, D., Aufauvre, D., Autreaux, C., Ayrignac, X., Bailbe, M., Benazet, M., Bensa, C., Bensmail, D., Berger, E., Bernady, P., Bertagna, Y., Biotti, D., Blanchard-Dauphin, A., Bonenfant, J., Bonnan, M., Bonnemain, B., Borgel, F., Botelho-Nevers, E., Boucly, S., Bourre, B., Boutière, C., Branger, P., Brassat, D., Bresch, S., Breuil, V., Brochet, B., Brugeilles, H., Bugnon, P., Cabre, P., Camdessanché, J.-P., Carra-Dalière, C., Casez, O., Chamouard, J.-M., Chassande, B., Chataignier, P., Chbicheb, M., Chenet, A., Ciron, J., Clavelou, P., Cohen, M., Colamarino, R., Collongues, N., Coman, I., Corail, P.-R., Courtois, S., Coustans, M., Creange, A., Creisson, E., Daluzeau, N., Davenas, C., De Seze, J., Debouverie, M., Depaz, R., Derache, N., Divio, L., Douay, X., Dulau, C., Durand-Dubief, F., Edan, G., Elias, Z., Fagniez, O., Faucher, M., Faucheux, J.-M., Fournier, M., Gagneux-Brunon, A., Gaida, P., Galli, P., Gallien, P., Gaudelus, J., Gault, D., Gayou, A., Genevray, M., Gentil, A., Gere, J., Gignoux, L., Giroux, M., Givron, P., Gout, O., Grimaud, J., Guennoc, A.-M., Hadhoum, N., Hautecoeur, P., Heinzlef, O., Jaeger, M., Jeannin, S., Kremer, L., Kwiatkowski, A., Labauge, P., Labeyrie, C., Lachaud, S., Laffont, I., Lanctin-Garcia, C., Lannoy, J., Lanotte, L., Laplaud, D., Latombe, D., Lauxerois, M., Le Page, E., Lebrun-Frenay, C., Lejeune, P., Lejoyeux, P., Lemonnier, B., Leray, E., Loche, C.-M., Louapre, C., Lubetzki, C., Maarouf, A., Mada, B., Magy, L., Maillart, E., Manchon, E., Marignier, R., Marque, P., Mathey, G., Maurousset, A., Mekies, C., Merienne, M., Michel, L., Milor, A.-M., Moisset, X., Montcuquet, A., Moreau, T., Morel, N., Moussa, M., Naudillon, J.-P., Normand, M., Olive, P., Ouallet, J.-C., Outteryck, O., Pacault, C., Papeix, C., Patry, I., Peaureaux, D., Pelletier, J., Pichon, B., Pittion, S., Planque, E., Pouget, M.-C., Pourcher, V., Radot, C., Robert, I., Rocher, F., Ruet, A., Saint-Val, C., Salle, J.-Y., Salmon, A., Sartori, E., Schaeffer, S., Stankhof, B., Taithe, F., Thouvenot, E., Tizon, C., Tourbah, A., Tourniaire, P., Vaillant, M., Vermersch, P., Vidil, S., Wahab, A., Warter, M.-H., Wiertlewski, S., Wiplosz, B., Wittwer, B., Zaenker, C., Zephir, H., Lebrun, C., and Vukusic, S.

Published
2019
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7. Comparative effectiveness of teriflunomide vs dimethyl fumarate in multiple sclerosis

Author

Laplaud, David-Axel, Casey, Romain, Barbin, Laetitia, Debouverie, Marc, De Sèze, Jérôme, Brassat, David, Wiertlewski, Sandrine, Brochet, Bruno, Pelletier, Jean, Vermersch, Patrick, Edan, Gilles, Lebrun-Frenay, Christine, Clavelou, Pierre, Thouvenot, Eric, Camdessanché, Jean-Philippe, Tourbah, Ayman, Stankoff, Bruno, Al Khedr, Abdullatif, Cabre, Philippe, Lubetzki, Catherine, Papeix, Caroline, Berger, Eric, Heinzlef, Olivier, Debroucker, Thomas, Moreau, Thibault, Gout, Olivier, Bourre, Bertrand, Wahab, Abir, Labauge, Pierre, Magy, Laurent, Defer, Gilles, Guennoc, Anne-Marie, Maubeuge, Nicolas, Labeyrie, Céline, Patry, Ivania, Nifle, Chantal, Casez, Olivier, Michel, Laure, Rollot, Fabien, Leray, Emmanuelle, Vukusic, Sandra, Foucher, Yohann, Fontaine, B., Marignier, R., Durand-Dubief, F., Mathey, G., Le Page, E., Peaureaux-Averseng, D., Ouallet, J.C., Ruet, A., Collongues, N., Hautecoeur, P., Zephir, H., Maillard, E., Cohen, M., Derache, N., Branger, P., Ayrignac, X., Carra-Dalliere, C., Fromont, A., Chamard-Witkowski, L., Taithe, F., Moisset, X., Audoin, B., Rico-Lamy, A., Castelnovo, G., Giannesini, C., Fagniez, O., Bensa, C., Gueguen, A., Kasonde, I. Tabellah, De Vilmarest, A., Montcuquet, A., Vaillants, M., Beltran, S., Creange, A., Ayache, S., Abdellaoui, M., Pottier, C., Slesari, I., Deburghraeve, V., Neau, J.P., Servan, J., Pico, F., Henry, C., and Hankiewicz, K.

Published
2019
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12. Mind the gap: from neurons to networks to outcomes in multiple sclerosis

Author

Chard, D. T., Alahmadi, A. A. S., Audoin, B., Charalambous, T., Enzinger, C., Hulst, H. E., Rocca, M. A., Rovira, A., Sastre-Garriga, J., Schoonheim, M. M., Tijms, B., Tur, C., Gandini Wheeler-Kingshott, C. A. M., Wink, A. M., Ciccarelli, O., Barkhof, F., De Stefano, N., Filippi, M., Frederiksen, J. L., Gasperini, C., Kappos, L., Palace, J., Yousry, T., Vrenken, H., University College of London [London] (UCL), Department of Diagnostic Radiology, Faculty of Applied Medical Science, King Abdulaziz University (KAU), Jeddah, Centre de résonance magnétique biologique et médicale (CRMBM), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS), Centre d'Exploration Métabolique par Résonance Magnétique [Hôpital de la Timone - APHM] (CEMEREM), Hôpital de la Timone [CHU - APHM] (TIMONE)-Centre de résonance magnétique biologique et médicale (CRMBM), Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Assistance Publique - Hôpitaux de Marseille (APHM)-Centre National de la Recherche Scientifique (CNRS), AP-HM, CHU Timone, Pole de Neurosciences Cliniques, Department of Neurology, Marseille, France., Department of Neurology, Research Unit for Neuronal Repair and Plasticity, Medical University of Graz, Graz, Department of Radiology, Division of Neuroradiology, Vascular and Interventional Radiology, Medical University of Graz, Graz, Department of Anatomy and Neurosciences, MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Neuroimaging Research Unit and Department of Neurology, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Universitat Autònoma de Barcelona (UAB), Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Department of Neurology, Luton and Dunstable University Hospital, Luton, Università degli Studi di Pavia = University of Pavia (UNIPV), Brain MRI 3T Research Center, IRCCS Mondino Foundation, Pavia, Department of Radiology & Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, NMR Research Unit, Queen Square MS Centre, Department of Neuroinflammation, UCL Institute of Neurology, Faculty of Brain Sciences, University College London, London, National Institute for Health Research (NIHR) University College London Hospitals (UCLH) Biomedical Research Centre, London, Assistance Publique - Hôpitaux de Marseille (APHM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Centre d'Exploration Métabolique par Résonance Magnétique [Hôpital de la Timone - AP-HM] (CEMEREM), Assistance Publique - Hôpitaux de Marseille (APHM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Assistance Publique - Hôpitaux de Marseille (APHM)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)- Hôpital de la Timone [CHU - APHM] (TIMONE), Section of Neuroradiology, Department of Radiology Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Servei de Neurologia/Neuroimmunologia, Multiple Sclerosis Centre of Catalonia (Cemcat), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Institutes of Neurology and Healthcare Engineering, University College London, London, Chard, Declan T, Alahmadi, Adnan A S, Audoin, Bertrand, Charalambous, Thali, Enzinger, Christian, Hulst, Hanneke E, Rocca, Maria A, Rovira, Àlex, Sastre-Garriga, Jaume, Schoonheim, Menno M, Tijms, Betty, Tur, Carmen, Gandini Wheeler-Kingshott, Claudia A M, Wink, Alle Meije, Ciccarelli, Olga, Barkhof, Frederik, MAGNIMS Study, Group, and Filippi, Massimo

Subjects
Multiple Sclerosis, Grey matter, Network topology, 030218 nuclear medicine & medical imaging, White matter, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Alzheimer Disease, medicine, Humans, Default mode network, ComputingMilieux_MISCELLANEOUS, Inflammation, Neurons, Artificial neural network, business.industry, Multiple sclerosis, [SCCO.NEUR]Cognitive science/Neuroscience, Brain, medicine.disease, medicine.anatomical_structure, Neurology (clinical), Disconnection, Alzheimer's disease, Nerve Net, business, Neuroscience, 030217 neurology & neurosurgery
Abstract

MRI studies have provided valuable insights into the structure and function of neural networks, particularly in health and in classical neurodegenerative conditions such as Alzheimer disease. However, such work is also highly relevant in other diseases of the CNS, including multiple sclerosis (MS). In this Review, we consider the effects of MS pathology on brain networks, as assessed using MRI, and how these changes to brain networks translate into clinical impairments. We also discuss how this knowledge can inform the targeting of MS treatments and the potential future directions for research in this area. Studying MS is challenging as its pathology involves neurodegenerative and focal inflammatory elements, both of which could disrupt neural networks. The disruption of white matter tracts in MS is reflected in changes in network efficiency, an increasingly random grey matter network topology, relative cortical disconnection, and both increases and decreases in connectivity centred around hubs such as the thalamus and the default mode network. The results of initial longitudinal studies suggest that these changes evolve rather than simply increase over time and are linked with clinical features. Studies have also identified a potential role for treatments that functionally modify neural networks as opposed to altering their structure.

Published
2021

13. Eur J Neurol

Author

Deschamps, R. (Romain), Pique, J. (Julie), Ayrignac, X. (Xavier), Collongues, N. (Nicolas), Audoin, B. (Bertrand), Zéphir, H. (Hélène), Ciron, J. (Jonathan), Cohen, M. (Mikael), Aboab, J. (Jennifer), Mathey, G. (Guillaume), Derache, N. (Nathalie), Laplaud, D. (David), Thouvenot, E. (Eric), Bourre, B. (Bertrand), Ruet, A. (Aurélie), Durand-Dubief, F. (Françoise), Touitou, V. (Valérie), Vignal-Clermont, C. (Catherine), Papeix, C. (Caroline), Gout, O. (Olivier), Marignier, R. (Romain), and Maillart, E. (Elisabeth)

Subjects
Sciences du Vivant [q-bio]/Neurosciences [q-bio.NC]
Abstract

BACKGROUND AND OBJECTIVE: The prognosis in myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD) is a matter of debate. Our aim was to assess the long-term outcomes of patients with MOGAD. METHODS: We retrospectively analysed the clinical and paraclinical data of patients from the French nationwide observatory study NOMADMUS who tested positive for MOG antibodies (MOG-IgG) and who had clinical follow-up of at least 8 years from their first episode. RESULTS: Sixty-one patients (median [range] age at onset 27 [3-69] years), with a median (mean; range) follow-up of 177 (212.8; 98-657) months, were included. Among 58 patients with a relapsing course, 26.3% relapsed in the first year after onset. Of the 61 patients, 90.2% experienced at least one episode of optic neuritis. At last visit, the median (mean; range) Expanded Disability Status Scale (EDSS) score was 1 (2.12; 0-7.5), 12.5% had an EDSS score ≥6 and 37.5% had an EDSS score ≥3. Of 51 patients with final visual acuity (VA) data available, 15.7% had VA ≤0.1 in at least one eye and 25.5% had VA ≤0.5 in at least one eye. Bilateral blindness (VA ≤0.1) was present in 5.9% of patients. Finally, 12.5% of patients presented bladder dysfunction requiring long-term urinary catheterization. No factor associated significantly with a final EDSS score ≥3 or with final VA ≤0.1 was found. CONCLUSION: Overall long-term favourable outcomes were achieved in a majority of our patients, but severe impairment, in particular visual damage, was not uncommon.

Published
2021

34. Non-invasive optoacoustic probing of the density and stiffness of single biological cells.

Author

Dehoux, T. and Audoin, B.

Subjects
*SOUND waves, *SPEED measurements, *CYTOLOGICAL research, *TRANSDUCERS, *ACOUSTOOPTICAL devices
Abstract

Recently, the coherent generation of GHz acoustic waves using ultrashort laser pulses has demonstrated the ability to probe the sound velocity in vegetal cells and in cell-mimicking soft micro-objects with micrometer resolution, opening tremendous potentialities for single-cell biology. However, manipulating biological media in physiological conditions is often a technical challenge when using a laser-based setup. In this article, we present a new opto-acoustic bio-transducer composed of a thin metal film sputtered on a transparent heat sink that allows reducing importantly the laser-induced cellular stresses, and offers a wide variety of optical configurations. In particular, by exploiting the acoustic reflection coefficient at the sample-transducer interface and the photoacoustic interaction inside the transparent sample, the density and compressibility of the sample can be probed simultaneously. Using an ad hoc signal analysis based on Hilbert and wavelet transforms, these quantities are measured accurately for a reference fluid. Similar analysis performed in a single vegetal cell also suggests high sensitivity to the state of the transducer-cell interface, and notably to the presence of the plasma membrane that encloses the cell vacuole. [ABSTRACT FROM AUTHOR]

Published
2012
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35. Bulk waves excited by a laser line pulse in a two-layered cylinder.

Author

Pan, Y., Chigarev, N., and Audoin, B.

Subjects
LASERS, LASER ablation, THERMOELASTICITY, ENGINE cylinders, WAVES (Physics)
Abstract

The acoustic displacements excited by a laser line source under either the ablation or thermoelastic regime are calculated for a two-layered cylinder made of homogeneous and isotropic materials. Two samples made by welding tin in two different copper tubes are considered. Experimental displacements are observed by the laser ultrasonic technique, and corresponding theoretical waveforms are calculated. Good agreement is found in the arrival time, shape, and relative amplitude of various longitudinal and shear bulk waves propagating in the two-layered cylinders, and the waves reflected by the interface are further identified by the ray trajectory analysis. The longitudinal wave reflected at the interface may be used for the nondestructive evaluation of the interface quality. [ABSTRACT FROM AUTHOR]

Published
2010
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36. Effect of laser pulse duration in picosecond ultrasonics.

Author

Dehoux, T., Perton, M., Chigarev, N., Rossignol, C., Rampnoux, J.-M., and Audoin, B.

Subjects
LASER beams, ULTRASHORT laser pulses, ULTRASONICS, BRILLOUIN scattering, ELECTROMAGNETIC wave scattering, ACOUSTIC models
Abstract

An optical grating has been introduced in a picosecond ultrasonics experiment, in order to vary continuously the duration of the laser beam pulse from 0.1 to 150 ps. The evolution of the measured signal has been observed and analyzed through the comparison with a theoretical approach based on a two-temperature model. The latter allows matching the acoustic echoes together with the thermal background and the coincidence peak, for each pulse duration and at any time scale. The broadening of the acoustic echoes and the disappearing of its Brillouin component, along with the diminishing of the thermal coincidence peak, have been demonstrated when increasing the pulse duration. For a constant incident pulse energy, the efficiency of acoustic generation is optimum for the shortest pulses. Nevertheless, for longer pulses designed to obtain thermal conditions below the ablation threshold, acoustic generation could be enhanced. [ABSTRACT FROM AUTHOR]

Published
2006
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37. Ultrasonic measurement of elastic constants of anisotropic materials with laser source and laser receiver focused on the same interface.

Author

Reverdy, F. and Audoin, B.

Subjects
*ANISOTROPY, *ULTRASONIC waves, *ELASTICITY
Abstract

A noncontact laser–ultrasonic technique is described that allows determination of material properties of anisotropic platelike samples. The method requires access to only one side of the sample. Plane waves are synthesized by scanning the surface with a laser line source at judiciously chosen intervals. By doing so, the intricacies associated with the reflection of an acoustic ray off an interface of an anisotropic medium are avoided. The plane-wave reflections off the opposite free surface of the plate are simply governed by Snell's law. The identification of the stiffness-tensor components is based on the inversion of the phase velocities of these reflected plane waves. The procedure developed is presented and applied to both simulated and experimental signals. The method is easy to implement, and provides a means for noncontact measurement of elastic properties where there is limited access to test specimens. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2001
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38. Stable or improved neurological manifestations during miglustat therapy in patients from the international disease registry for Niemann-Pick disease type C: An observational cohort study

Author

Patterson, M. C, Mengel, E, Vanier, M. T, Schwierin, B, Muller, A, Cornelisse, P, Pineda, M, Amado-Fondo, A, Amraoui, Y, Andria, G, Arellano, M, Audoin, B, Azcona, C, Barr, C, Baruteau, J, Baumgartner, C, Bell, L, Bembi, B, Benneddif, K, Bernard, G, Bobocea, N, Bodzioch, M, Boettcher, T, Bonnan, M, Broue, P, Bruni, A, Caceres, M, Camino, R, Campbell, E, Cances, C, Cannell, P, Cesar, J, Chabrol, B, Chakrapani, A, Colao, R, Collet, A, Corsetti, T, Cousins, A, Covanis, A, Cox, T, Cuisset, J. M, Dardis, A, Das, A, Deegan, P, Dengler, T, Deodato, F, Derralynn, H, Di Donato, I, Di Rocco, M, Dinopoulos, A, Pakiela, D, Eckehard, S, Engelen, M, Eyer, D, Fecarotta, S, Federico, A, Filla, A, Fiumara, A, Fonseca, M. J, Gabrielli, O, Garcia, T, Garrote, J, Gissen, P, Giugliani, L, Greenberg, C, Heron, B, Hertzberg, C, Higgins, F, Hill, A, Hiwot, T, Hlavata, A, Hörbe-Blindt, A, Howley, E, Hussain, N, Illsinger, S, Imrie, J, Jacklin, E, Jones, S, Jovanovic, A, Kaczmarek, V, Kaphan, E, Kibaek, M, Kleinhans, P, Klünemann, Kh, Koch, S. M, Koegl-Wallner, W, Kolnikova, M, Korenke, G. C, Korinthenberg, R, Kumari, S, Lachmann, R, Lee Ann, L, Likopoulou, L, Lilienthal, E, Link, B, Lippold, M, Lopez-Laso, E, Luecke, T, Lundgren, J, Mackrell, M, Madruga, M, Maletta, R, Malinova, V, Manners, J, Marinei, R, Marquardt, T, Martins, E, Martins, A. M, Martins, N, Mcalister, L, Mccabe, A, Mckie, M, Mcmahon, S, Meehan, M, Meldgaard Lund, A, Mendozah, C, Meyer, A, Mielke, S, Milligan, A, Mir, P, Moisa, M, Mombelli, C, Morris, L, Müller Vom Hagen, J, Munoz, B, Murphy, E, Nagarajan, L, Neto, P. B, Nevsimalova, S, Nia, S, Nicolai, J, Niemann, D, Niktari, G, O'Callaghan, M. D. M, Paucar-Arce, M, Peers, K, Peintinger, L, Peralta, M, Pérez, J, Perez-Poyato, M, Petrariu, A, Puschmann, A, Raiman, J, Rask, O, Rataj, J, Raymond-Gaynor, C, Reichelt, G, Ribeiro, E, Riches, V, Roberts, A, Roelants, J, Rohrbach, M, Rokicki, D, Rolfs, A, Russo, C, Rutsch, F, Saleem, R, Santos, M, Schmutz, P, Schwahn, B, Sedel, F, Semotok, J, Sharma, R, Silska, S, Silva, A, Simmons, L, Sivera, R, Skorpen, J, Sole, G, Souza, C, Stadlober-Degwerth, M, Starling, J, Temudo, T, Tomas, M, Tranchant, C, Uziel, G, Valayannopoulous, V, Van Den Hout, H, Van Der Tol, L, Van Spronsen, F, Vellodi, A, Verdu, A, Vilchez, J. J, Vinaixa, A, Visser, G, Voelker, J, Waldek, S, Walter, A, Walterfang, M, Wein, U, Widner, H, Wilcke, C, Wildish, L, Wraith, E, Wright, N, Xaidara, A, Yamamoto, M, Zallocco, F, Zielke, S, Patterson, Mc, Mengel, E, Vanier, Mt, Schwierin, B, Muller, A, Cornelisse, P, Pineda, M, Registry investigators, Npc, Filla, Alessandro, Russo, CINZIA VALERIA, Neurology, Paediatric Neurology, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, ANS - Amsterdam Neuroscience, and Graduate School

Subjects
Male, Pediatrics, Neurology, Cohort Studies, 0302 clinical medicine, Miglustat, Medicine, Enzyme Inhibitor, Genetics(clinical), Pharmacology (medical), Prospective Studies, Young adult, Enzyme Inhibitors, Prospective cohort study, Child, Genetics (clinical), Medicine(all), 0303 health sciences, Medicine (all), Niemann-Pick disease type C, Niemann-Pick Disease, Type C, General Medicine, 3. Good health, Treatment Outcome, Child, Preschool, Cohort, Disease Progression, Female, medicine.drug, Cohort study, Human, Adult, medicine.medical_specialty, Registry, 1-Deoxynojirimycin, Adolescent, 03 medical and health sciences, Young Adult, Disease registry, Swallowing, Humans, 030304 developmental biology, business.industry, Research, Prospective Studie, Cohort Studie, business, 030217 neurology & neurosurgery
Abstract

BACKGROUND: Niemann-Pick disease type C (NP-C) is a rare neurovisceral disease characterised by progressive neurological degeneration, where the rate of neurological disease progression varies depending on age at neurological onset. We report longitudinal data on functional disease progression and safety observations in patients in the international NPC Registry who received continuous treatment with miglustat. METHODS: The NPC Registry is a prospective observational cohort of NP-C patients. Enrolled patients who received ≥1 year of continuous miglustat therapy (for ≥90 % of the observation period, with no single treatment interruption >28 days) were included in this analysis. Disability was measured using a scale rating the four domains, ambulation, manipulation, language and swallowing from 0 (normal) to 1 (worst). Neurological disease progression was analysed in all patients based on: 1) annual progression rates between enrolment and last follow up, and; 2) categorical analysis with patients categorised as 'improved/stable' if ≥3/4 domain scores were lower/unchanged, and as 'progressed' if

Published
2015

39. Measurement of stiffness coefficients of anisotropic materials from pointlike generation and detection of acoustic waves.

Author

Audoin, B., Bescond, C., and Deschamps, M.

Subjects
*LASERS, *SILICON, *WAVES (Physics)
Abstract

Focuses on a study which determined a scanned point source-point receiver technique, based on laser generation and detection of acoustic waves, to measure the stiffness coefficients of anisotropic materials. Discussion on recovering of stiffness coefficients; Information on silicon crystal; Methodology of the study; Results and discussion.

Published
1996
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40. Directivity Patterns of Ultrasonic Waves Generated by a Laser Pulse at the Interface Between Two Elastic Media.

Author

Anagnostopoulos, E., Ségur, D., Dehoux, T., and Audoin, B.

Subjects
ULTRASONIC waves, LASER pulses, CARBON fiber-reinforced plastics, ACOUSTIC radiators, SHEAR waves
Abstract

Directivity patterns of an acoustic source generated by the absorption of a laser pulse at the interface between a transparent epoxy-resin half-space and an opaque CFRP isotropised half-space have been calculated using the reciprocity theorem. Longitudinal and shear radiation patterns of acoustic field emitted in the CFRP are compared in respect with the loading surface condition. [ABSTRACT FROM AUTHOR]

Published
2016
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41. New brain lesions with no impact on physical disability can impact cognition in early multiple sclerosis: A ten-year longitudinal study.

Author

Wybrecht, D., Reuter, F., Pariollaud, F., Zaaraoui, W., Le Troter, A., Rico, A., Confort-Gouny, S., Soulier, E., Guye, M., Maarouf, A., Ranjeva, J-p., Pelletier, J., and Audoin, B.

Subjects
DIAGNOSIS of brain damage, DISABILITY studies, MULTIPLE sclerosis, COGNITIVE testing, LURIA-Nebraska Neuropsychological Battery
Abstract

Objective: In early multiple sclerosis, although brain T2 lesions accrual are hallmark of the disease, only weak correlations were found between T2 lesions accrual and EDSS progression, the disability scale commonly used in multiple sclerosis studies. This may be related to the very poor sensitivity of EDSS to cognitive dysfunctions that may occur and progress from the first stage of the disease. In the present study, we aimed to demonstrate that cognitive deficits progress during the first ten years of MS and are significantly impacted by new T2 lesions. Methods: EDSS and extensive neuropsychological battery (22 measures) exploring memory, attention/speed of information processing and executive functions were assessed at baseline, Year 1 and Year 10 in 26 patients enrolled after their first clinical attack. To limit the bias of test-retest effect, only measures obtained at Year 1 and Year 10 were reported in the analysis. Raw scores of patients were transformed into z-scores using published normative data when available or scores of matched controls. Lesion probability mapping was used to assess the potential relationships between T2 lesions accumulation, cognitive decline and EDSS progression (P<0.05, FWE-corrected). Results: At Year 1, 27% of patients showed attention/speed of information processing deficits, 11.5% executive dysfunction and 11.5% memory impairment. During the follow-up, frequency and severity of executive dysfunction increased (from 11.5% of patients at Year 1 to 42% at Year 10, p<0.01) while no significant changes were evidenced for the other cognitive domains. Median EDSS increased from 0.5 [range: 0–3] at Year 1 to 2.5 [range: 0–6.5] at Year 10 (p<0.001). During the ten-year follow-up, lesions accumulation in the left cerebellum and semi-ovale centers was associated with EDSS progression. In contrast, most lesions accumulation in the frontal, parietal and temporal lobes were associated with cognitive decline but had no effect on EDSS progression. Conclusion: The present study provides strong evidence that clinically silent T2 lesions impact cognition in early MS. In daily practice, early prevention of T2 lesions accrual may be useful to limit cognitive decline. [ABSTRACT FROM AUTHOR]

Published
2017
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42. Efficacy of rituximab in refractory neuromyelitis optica.

Author

Collongues, N., Brassat, D., Maillart, E., Labauge, P., Ouallet, J. C., Carra-Dalliere, C., Moreau, T., Bourre, B., Papeix, C., Brochet, B., Audoin, B., Vukusic, S., de Seze, J., and Marignier, R.

Subjects
RITUXIMAB, NEUROMYELITIS optica, IMMUNOSUPPRESSIVE agents, IMMUNOSUPPRESSION, DISEASE relapse, THERAPEUTICS
Abstract

Background: Despite a growing use of rituximab (RTX) in neuromyelitis optica (NMO), data are lacking in patients with refractory NMO (RNMO), defined as cases with at least one relapse during immunosuppressive therapy. Objective: The purpose of this study was to assess RTX as a maintenance therapy in RNMO. Methods: Out of a total of 305 NMO cases from a population-based cohort, 21 RNMO patients received RTX during a mean follow-up period of 31 months. Results: After RTX, 11 patients (52.3%) were relapse free, meaning that 47.7% were refractory to RTX. The mean annualized relapse rate decreased from 1.3 to 0.4 (p<0.001) and median EDSS from 5 to 3 (p=0.02). Body mass index (BMI) was predictive of EDSS worsening. Conclusions: RTX is an effective and well-tolerated treatment in RNMO. BMI could be a predictive factor for efficacy. [ABSTRACT FROM AUTHOR]

Published
2016
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43. Thermal microscopy of single biological cells.

Author

Legrand, R., Ghanem, M. Abi, Plawinski, L., Durrieu, M.-C., Audoin, B., and Dehoux, T.

Subjects
CRYOGENICS, THERMOELASTICITY, ACOUSTIC impedance, INFRARED imaging, THERMAL properties
Abstract

Techniques that can probe the thermal properties of cells are used in many applications ranging from cryogenic preservation to hyperthermia therapy, and provide powerful tools to investigate diseased conditions. The structural complexity of cells, however, requires innovative modalities operating at a subcell scale. We developed a label-free, non-ionizing technique based on a thermoelastic lens. With this device, we captured images of single cells with a ~2 μm resolution based on thermal properties as the contrast mechanism. To investigate the thermorheological behaviour of cells, we present simultaneous acoustic imaging using an inverted opto-acoustic microscope. Acoustic impedances extracted from the acoustic images support the effusivity obtained from the thermal images. This technique should provide diagnostic tools at the single cell scale. [ABSTRACT FROM AUTHOR]

Published
2015
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49. Picosecond Acoustic Measurement of Anisotropic Properties of Thin Films.

Author

Perton, M., Rossignol, C., Chigarev, N., and Audoin, B.

Subjects
THIN films, METALLIC films, ULTRASONICS, LASERS, ELASTICITY, SPEED
Abstract

Properties of thin metallic films have been studied extensively by means of laser-picosecond ultrasonics. Generation of longitudinal and shear waves via thermoelastic mechanism and large source has been only demonstrated for waves vectors along the normal to the interface. However, such measurements cannot provide complete information about elastic properties of films. As it has been already shown for nanosecond ultrasonics, the knowledge of group or phase velocities in several directions for sources with small lateral size allows determining the stiffness tensor coefficients of a sample. The experimental set-up was prepared to obtain the thinnest size for the source to achieve acoustic diffraction. The identification of the stiffness tensor components, based on the inversion of the bulk waves phase velocities, is applied to signals simulated and experimentally recorded for a material with hexagonal properties. First estimation of stiffness tensor coefficients for thin metallic film 2.1 μm has been performed. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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50. Stiffness Coefficients Measurement of Cylindrical Rods by Laser Ultrasonics.

Author

Pan, Y., Rossignol, C., and Audoin, B.

Subjects
HEAD waves, THERMOELASTICITY, LASERS, ULTRASONICS, NONDESTRUCTIVE testing, BARS (Engineering), ULTRASONIC waves
Abstract

A non-contact laser-ultrasonic technique is applied to the nondestructive measurement of the stiffness properties of cylindrical rods. Acoustic waves generated in a cylinder by a laser line source under thermoelastic regime are identified by the comparison between experiment and theory. Two stiffness coefficients c11 and c12 are determined by measuring the arrival time of the reflected longitudinal wave (LL) and that of the head wave (HW). The effects of laser beamwidth and time duration on the measurement are found by numerical simulations. For such an application, a radius of 0.3 mm appears as a minimum limit for the sample size using a laser source of 0.1 mm beamwidth and 20 ns time duration. Stiffness coefficients of three aluminum rods are experimentally measured with good accuracy. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2004
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