المؤلفون: Marsha Pelletier, Jean-Marc Burgunder, Marco Pedrazzoli, Kopano Mukelabai, Louisa Townson, Marina Ponomareva, Anna-Lena Nordström, Ralf Reilmann, Mark Guttman, Aaron Levine

المصدر: Guttman, Mark; Pedrazzoli, Marco; Ponomareva, Marina; Pelletier, Marsha; Townson, Louisa; Mukelabai, Kopano; Levine, Aaron; Nordström, Anna-Lena; Reilmann, Ralf; Burgunder, Jean-Marc (2021). The Impact of Upcoming Treatments in Huntington's Disease: Resource Capacity Limitations and Access to Care Implications. Journal of Huntington's disease, 10(2), pp. 303-311. IOS Press 10.3233/JHD-200462 <http://dx.doi.org/10.3233/JHD-200462Test>
Journal of Huntington's Disease

مصطلحات موضوعية: Research Report, 0301 basic medicine, health care facilities, 610 Medicine & health, and services, Intrathecal, Spinal Puncture, Health Services Accessibility, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Resource (project management), Huntington's disease, Healthcare delivery, manpower, intrathecal injection, Health care, medicine, Humans, Health Workforce, Injections, Spinal, Health professionals, business.industry, capacity building, Capacity building, medicine.disease, health resources, Huntington Disease, 030104 developmental biology, Health Facilities, Neurology (clinical), Medical emergency, business, 030217 neurology & neurosurgery, Huntington’s disease, Healthcare system

الوصف: BACKGROUND The most advanced disease-modifying therapies (DMTs) in development for Huntington's disease (HD) require intrathecal (IT) administration, which may create or exacerbate bottlenecks in resource capacity. OBJECTIVE To understand the readiness of healthcare systems for intrathecally administered HD DMTs in terms of resource capacity dynamics and implications for patients' access to treatment. METHODS Forty HD centres across 12 countries were included. Qualitative and quantitative data on current capacity in HD centres and anticipated capacity needs following availability of a DMT were gathered via interviews with healthcare professionals (HCPs). Data modelling was used to estimate the current capacity gap in HD centres. RESULTS From interviews with 218 HCPs, 25% of HD centres are estimated to have the three components required for IT administration (proceduralists, nurses and facilities). On average, 114 patients per centre per year are anticipated to receive intrathecally administered DMTs in the future. At current capacity, six of the sampled centres are estimated to be able to deliver DMTs to all the anticipated patients based on current resources. The estimated waiting time for IT administration at current capacity will average 60 months (5 years) by the second year after DMT availability. CONCLUSION Additional resources are needed in HD centres for future DMTs to be accessible to all anticipated patients. Timely collaboration by the HD community will be needed to address capacity gaps. Healthcare policymakers and payers will need to address costs and navigate challenges arising from country- or region-specific healthcare delivery schemes.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f11222ca8d9002ba30c2b786c16c27eTest
https://doi.org/10.3233/jhd-200462Test

المؤلفون: Tobias Nef, Alvin Chesham, Narayan Schütz, Angela Amira Botros, Tim Vanbellingen, Jean-Marc Burgunder, Julia Müllner, René Martin Müri, Prabitha Urwyler

المصدر: Frontiers in Aging Neuroscience
Frontiers in Aging Neuroscience, Vol 12 (2020)
Nef, Tobias; Chesham, Alvin; Schütz, Narayan; Botros, Angela Amira; Vanbellingen, Tim; Burgunder, Jean-Marc; Müllner, Julia; Müri, René Martin; Urwyler, Prabitha (2020). Development and Evaluation of Maze-Like Puzzle Games to Assess Cognitive and Motor Function in Aging and Neurodegenerative Diseases. Frontiers in aging neuroscience, 12(87), p. 87. Frontiers Research Foundation 10.3389/fnagi.2020.00087 <http://dx.doi.org/10.3389/fnagi.2020.00087Test>

مصطلحات موضوعية: 0301 basic medicine, medicine.medical_specialty, Aging, Cognitive Neuroscience, 610 Medicine & health, Disease, Motor function, lcsh:RC321-571, cognitive assessment, 03 medical and health sciences, 0302 clinical medicine, Physical medicine and rehabilitation, Age groups, medicine, neurodegenerative diseases, puzzle video games, lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry, Original Research, Psychomotor learning, Neurodegeneration, Neuropsychology, Cognition, medicine.disease, maze task, 030104 developmental biology, 570 Life sciences, biology, Cognitive Assessment System, 030217 neurology & neurosurgery, Neuroscience

الوصف: There is currently a need for engaging, user-friendly, and repeatable tasks for assessment of cognitive and motor function in aging and neurodegenerative diseases. This study evaluated the feasibility of a maze-like Numberlink puzzle game in assessing differences in game-based measures of cognition and motor function due to age and neurodegenerative diseases. Fifty-five participants, including young (18–31 years, n = 18), older (64–79 years, n = 14), and oldest adults (86–98 years, n = 14), and patients with Parkinson’s (59–76 years, n = 4) and Huntington’s disease (HD; 35–66 years, n = 5) played different difficulty levels of the Numberlink puzzle game and completed usability questionnaires and tests for psychomotor, attentional, visuospatial, and constructional and executive function. Analyses of Numberlink game-based cognitive (solving time and errors) and motor [mean velocity and movement direction changes (MDC)] performance metrics revealed statistically significant differences between age groups and between patients with HD and older adults. However, patients with Parkinson’s disease (PD) did not differ from older adults. Correlational analyses showed significant associations between game-based performance and movement metrics and performance on neuropsychological tests for psychomotor, attentional, visuospatial, and constructional and executive function. Furthermore, varying characteristics of the Numberlink puzzle game succeeded in creating graded difficulty levels. Findings from this study support recent suggestions that data from a maze-like puzzle game provide potential “digital biomarkers” to assess changes in psychomotor, visuoconstructional, and executive function related to aging and neurodegeneration. In particular, game-based movement measures from the maze-like puzzle Numberlink games are promising as a tool to monitor the progression of motor impairment in neurodegenerative diseases. Further studies are needed to more comprehensively establish the cognitive validity and test–retest reliability of using Numberlink puzzles as a valid cognitive assessment tool.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09181e458b90de0ed80bf6d8a2e8802cTest

المؤلفون: Jean-Marc Burgunder, Raymund A.C. Roos, Johan Marinus, Ralf Reilmann, Jessica Y. Winder

المصدر: Movement Disorders Clinical Practice. 5:290-295

مصطلحات موضوعية: 0301 basic medicine, Dystonia, medicine.medical_specialty, business.industry, Intraclass correlation, Certification, medicine.disease, Trunk, 03 medical and health sciences, Inter-rater reliability, 030104 developmental biology, 0302 clinical medicine, Neurology, Huntington's disease, Rating scale, Physical therapy, Medicine, Neurology (clinical), business, 030217 neurology & neurosurgery, Motor score

الوصف: Background The clinical assessment of motor symptoms in Huntington's disease is usually performed with the Unified Huntington's Disease Rating Scale-Total Motor Score (UHDRS-TMS). A high interrater reliability is desirable to monitor symptom progression. Therefore, a teaching video and a system for annual online certification has been developed and implemented. Objectives The aim of this study is to investigate the interrater reliability of the UHDRS-TMS and of its subitems, and to examine the performance of raters in consecutive years. Methods Data from the online UHDRS-TMS certification were used. The interrater reliability was assessed for all first-time participants (n = 944) between 2009 and 2016. Intraclass correlation coefficients (ICC) were calculated for each year separately and the mean was taken as the total ICC. Results The UHDRS-TMS (ICC = 0.847), tandem walking (0.824), pronate/supinate hands left (0.713), and retropulsion pull test (0.706) showed good interrater reliability. Poor interrater reliability was found for maximal dystonia of the left and right upper extremity (0.187 and 0.322, respectively), maximal dystonia of the left and right lower extremity (0.200 and 0.256, respectively), and maximal dystonia of the trunk (0.389), tongue protrusion (0.266), and rigidity arms left (0.390). Raters performed significantly worse on follow-up certification compared to their first certification. Conclusions Our results suggest that the rating of dystonia (absent, slight, mild, moderate, or marked) is subjective and difficult to interpret, especially on video. Therefore, changing the dystonia items of the UHDRS-TMS should be explored. We also recommend that raters should watch the UHDRS-TMS teaching video before each certification.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::a03b7019334f0ff000ce4c4d51bfb432Test
https://doi.org/10.1002/mdc3.12618Test

المؤلفون: Davina J Hensman Moss, Antonio F Pardiñas, Douglas Langbehn, Kitty Lo, Blair R Leavitt, Raymund Roos, Alexandra Durr, Simon Mead, Peter Holmans, Lesley Jones, Sarah J Tabrizi, A Coleman, R Dar Santos, J Decolongon, A Sturrock, E Bardinet, C Jauff Ret, D Justo, S Lehericy, C Marelli, K Nigaud, R Valabrègue, SJA van den Bogaard, E M Dumas, J van der Grond, EP t'Hart, C Jurgens, M-N Witjes-Ane, N Arran, J Callaghan, C Stopford, C Frost, R Jones, N Hobbs, N Lahiri, R Ordidge, G Owen, T Pepple, J Read, M Say, E Wild, A Patel, N C Fox, C Gibbard, I Malone, H Crawford, D Whitehead, S Keenan, D M Cash, C Berna, N Bechtel, S Bohlen, A Hoff Man, P Kraus, E Axelson, C Wang, T Acharya, S Lee, W Monaco, C Campbell, S Queller, K Whitlock, M Campbell, E Frajman, C Milchman, A O'Regan, I Labuschagne, J Stout, B Landwehrmeyer, D Craufurd, R Scahill, S Hicks, C Kennard, H Johnson, A Tobin, HD Rosas, R Reilmann, B Borowsky, C Pourchot, S C Andrews, Anne-Catherine Bachoud-Lévi, Anna Rita Bentivoglio, Ida Biunno, Raphael Bonelli, Jean-Marc Burgunder, Stephen Dunnett, Joaquim Ferreira, Olivia Handley, Arvid Heiberg, Torsten Illmann, G. Bernhard Landwehrmeyer, Jamie Levey, Maria A. Ramos-Arroyo, Jørgen Nielsen, Susana Pro Koivisto, Markku Päivärinta, Raymund A.C. Roos, A Rojo Sebastián, Sarah Tabrizi, Wim Vandenberghe, Christine Verellen-Dumoulin, Tereza Uhrova, Jan Wahlström, Jacek Zaremba, Verena Baake, Katrin Barth, Monica Bascuñana Garde, Sabrina Betz, Reineke Bos, Jenny Callaghan, Adrien Come, Leonor Correia Guedes, Daniel Ecker, Ana Maria Finisterra, Ruth Fullam, Mette Gilling, Lena Gustafsson, Olivia J Handley, Carina Hvalstedt, Christine Held, Kerstin Koppers, Claudia Lamanna, Matilde Laurà, Asunción Martínez Descals, Saül Martinez-Horta, Tiago Mestre, Sara Minster, Daniela Monza, Lisanne Mütze, Martin Oehmen, Michael Orth, Hélène Padieu, Laurent Paterski, Nadia Peppa, Martina Di Renzo, Amandine Rialland, Niini Røren, Pavla Šašinková, Erika Timewell, Jenny Townhill, Patricia Trigo Cubillo, Wildson Vieira da Silva, Marleen R van Walsem, Carina Whalstedt, Marie-Noelle Witjes-Ané, Grzegorz Witkowski, Abigail Wright, Daniel Zielonka, Eugeniusz Zielonka, Paola Zinzi, Raphael M. Bonelli, Sabine Lilek, Karen Hecht, Brigitte Herranhof, Anna Holl, Hans-Peter Kapfhammer, Michael Koppitz, Markus Magnet, Nicole Müller, Daniela Otti, Annamaria Painold, Karin Reisinger, Monika Scheibl, Helmut Schöggl, Jasmin Ullah, Eva-Maria Braunwarth, Florian Brugger, Lisa Buratti, Eva-Maria Hametner, Caroline Hepperger, Christiane Holas, Anna Hotter, Anna Hussl, Christoph Müller, Werner Poewe, Klaus Seppi, Fabienne Sprenger, Gregor Wenning, Andrea Boogaerts, Godelinde Calmeyn, Isabelle Delvaux, Dirk Liessens, Nele Somers, Michel Dupuit, Cécile Minet, Dominique van Paemel, Pascale Ribaï, Dimphna van Reijen, Jirí Klempír, Veronika Majerová, Jan Roth, Irena Stárková, Lena E. Hjermind, Oda Jacobsen, Jørgen E. Nielsen, Ida Unmack Larsen, Tua Vinther-Jensen, Heli Hiivola, Hannele Hyppönen, Kirsti Martikainen, Katri Tuuha, Philippe Allain, Dominique Bonneau, Marie Bost, Bénédicte Gohier, Marie-Anne Guérid, Audrey Olivier, Adriana Prundean, Clarisse Scherer-Gagou, Christophe Verny, Blandine Babiloni, Sabrina Debruxelles, Charlotte Duché, Cyril Goizet, Laetitia Jameau, Danielle Lafoucrière, Umberto Spampinato, Rekha Barthélémy, Christelle De Bruycker, Maryline Cabaret Anne-Sophie Carette, Eric Decorte Luc Defebvre, Marie Delliaux, Arnaud Delval, Alain Destee, Kathy Dujardin, Marie-Hélène Lemaire, Sylvie Manouvrier, Mireille Peter, Lucie Plomhouse, Bernard Sablonnière, Clémence Simonin, Stéphanie Thibault-Tanchou, Isabelle Vuillaume, Marcellin Bellonet, Hassan Berrissoul, Stéphanie Blin, Françoise Courtin, Cécile Duru, Véronique Fasquel, Olivier Godefroy, Pierre Krystkowiak, Béatrice Mantaux, Martine Roussel, Sandrine Wannepain, Jean-Philippe Azulay, Marie Delfini, Alexandre Eusebio, Frédérique Fluchere, Laura Mundler, Mathieu Anheim, Celine Julié, Ouhaid Lagha Boukbiza, Nadine Longato, Gabrielle Rudolf, Christine Tranchant, Marie-Agathe Zimmermann, Christoph Michael Kosinski, Eva Milkereit, Daniela Probst, Kathrin Reetz, Christian Sass, Johannes Schiefer, Christiane Schlangen, Cornelius J. Werner, Harald Gelderblom, Josef Priller, Harald Prüß, Eike Jakob Spruth, Gisa Ellrichmann, Lennard Herrmann, Rainer Hoffmann, Barbara Kaminski, Peter Kotz, Christian Prehn, Carsten Saft, Herwig Lange, Robert Maiwald, Matthias Löhle, Antonia Maass, Simone Schmidt, Cecile Bosredon, Alexander Storch, Annett Wolz, Martin Wolz, Philipp Capetian, Johann Lambeck, Birgit Zucker, Kai Boelmans, Christos Ganos, Walburgis Heinicke, Ute Hidding, Jan Lewerenz, Alexander Münchau, Jenny Schmalfeld, Lars Stubbe, Simone Zittel, Gabriele Diercks, Dirk Dressler, Heike Gorzolla, Christoph Schrader, Pawel Tacik, Michael Ribbat, Bernhard Longinus, Katrin Bürk, Jens Carsten Möller, Ida Rissling, Mark Mühlau, Alexander Peinemann, Michael Städtler, Adolf Weindl, Juliane Winkelmann, Cornelia Ziegler, Natalie Bechtel, Heike Beckmann, Stefan Bohlen, Eva Hölzner, Ralf Reilmann, Stefanie Rohm, Silke Rumpf, Sigrun Schepers, Natalia Weber, Matthias Dose, Gabriele Leythäuser, Ralf Marquard, Tina Raab, Alexandra Wiedemann, Andrea Buck, Julia Connemann, Carolin Geitner, Andrea Kesse, Bernhard Landwehrmeyer, Christina Lang, Franziska Lezius, Solveig Nepper, Anke Niess, Ariane Schneider, Daniela Schwenk, Sigurd Süßmuth, Sonja Trautmann, Patrick Weydt, Claudia Cormio, Vittorio Sciruicchio, Claudia Serpino, Marina de Tommaso, Sabina Capellari, Pietro Cortelli, Roberto Galassi, Giovanni Rizzo, Roberto Poda, Cesa Scaglione, Elisabetta Bertini, Elena Ghelli, Andrea Ginestroni, Francesca Massaro, Claudia Mechi, Marco Paganini, Silvia Piacentini, Silvia Pradella, Anna Maria Romoli, Sandro Sorbi, Giovanni Abbruzzese, Monica Bandettini di Poggio, Giovanna Ferrandes, Paola Mandich, Roberta Marchese, Alberto Albanese, Daniela Di Bella, Anna Castaldo, Stefano Di Donato, Cinzia Gellera, Silvia Genitrini, Caterina Mariotti, Lorenzo Nanetti, Dominga Paridi, Paola Soliveri, Chiara Tomasello, Giuseppe De Michele, Luigi Di Maio, Marco Massarelli, Silvio Peluso, Alessandro Roca, Cinzia Valeria Russo, Elena Salvatore, Pierpaolo Sorrentino, Enrico Amico, Mariagrazia Favellato, Annamaria Griguoli, Irene Mazzante, Martina Petrollini, Ferdinando Squitieri, Barbara D'Alessio, Chiara Esposito, Rita Bentivoglio, Marina Frontali, Arianna Guidubaldi, Tamara Ialongo, Gioia Jacopini, Carla Piano, Silvia Romano, Francesco Soleti, Maria Spadaro, Monique S.E. van Hout, Marloes E. Verhoeven, Jeroen P.P. van Vugt, A. Marit de Weert, J.J.W. Bolwijn, M. Dekker, B. Kremer, K.L. Leenders, J.C.H. van Oostrom, Simon J.A. van den Bogaard, Eve M. Dumas, Ellen P. 't Hart, Berry Kremer, C.C.P. Verstappen, Olaf Aaserud, Jan Frich C, Ragnhild Wehus, Kathrine Bjørgo, Madeleine Fannemel, Per F. Gørvell, Eirin Lorentzen, Lars Retterstøl, Bodil Stokke, Inga Bjørnevoll, Sigrid Botne Sando, Artur Dziadkiewicz, Malgorzata Nowak, Piotr Robowski, Emilia Sitek, Jaroslaw Slawek, Witold Soltan, Michal Szinwelski, Magdalena Blaszcyk, Magdalena Boczarska-Jedynak, Ewelina Ciach-Wysocka, Agnieszka Gorzkowska, Barbara Jasinska-Myga, Gabriela Klodowska-Duda, Gregorz Opala, Daniel Stompel, Krzysztof Banaszkiewicz, Dorota Bocwinska, Kamila Bojakowska-Jaremek, Malgorzata Dec, Malgorzata Krawczyk, Monika Rudzinska, Elzbieta Szczygiel, Andrzej Szczudlik, Anna Wasielewska, Magdalena Wójcik, Anna Bryl, Anna Ciesielska, Aneta Klimberg, Jerzy Marcinkowski, Husam Samara, Justyna Sempolowicz, Anna Gogol, Piotr Janik, Hubert Kwiecinski, Zygmunt Jamrozik, Jakub Antczak, Katarzyna Jachinska, Wioletta Krysa, Maryla Rakowicz, Przemyslaw Richter, Rafal Rola, Danuta Ryglewicz, Halina Sienkiewicz-Jarosz, Iwona Stepniak, Anna Sulek, Elzbieta Zdzienicka, Karolina Zieora-Jakutowicz, Joaquim J Ferreira, Miguel Coelho, Tiago Mendes, Anabela Valadas, Carlos Andrade, Miguel Gago, Carolina Garrett, Maria Rosália Guerra, Carmen Durán Herrera, Patrocinio Moreno Garcia, Miquel Aguilar Barbera, Dolors Badenes Guia, Laura Casas Hernanz, Judit López Catena, Pilar Quiléz Ferrer, Ana Rojo Sebastián, Gemma Tome Carruesco, Jordi Bas, Núria Busquets, Matilde Calopa, Misericordia Floriach Robert, Celia Mareca Viladrich, Jesús Miguel Ruiz Idiago, Antonio Villa Riballo, Esther Cubo, Cecilia Gil Polo, Natividad Mariscal, Perez Jessica Rivadeneyra, Francisco Barrero, Blas Morales, María Fenollar, Rocío García-Ramos García, Paloma Ortega, Clara Villanueva, Javier Alegre, Mónica Bascuñana, Juan Garcia Caldentey, Marta Fatás Ventura, Guillermo García Ribas, Justo García de Yébenes, José Luis López-Sendón Moreno, Fernando Alonso Frech, Pedro J García Ruíz, Asunción Martínez-Descals, Rosa Guerrero, María José Saiz Artiga, Vicenta Sánchez, María Fuensanta Noguera Perea, Lorenza Fortuna, Salvadora Manzanares, Gema Reinante, María Martirio Antequera Torres, Laura Vivancos Moreau, Sonia González González, Luis Menéndez Guisasola, Carlos Salvador, Esther Suaréz San Martín, Inés Legarda Ramirez, Aranzazú Gorospe, Mónica Rodriguez Lopera, Penelope Navas Arques, María José Torres Rodríguez, Barbara Vives Pastor, Itziar Gaston, Maria Dolores Martinez-Jaurrieta, Jose Manuel Garcia Moreno, Carolina Mendez Lucena, Fatima Damas, Hermoso Eva Pacheco Cortegana, José Chacón Peña, Luis Redondo, Fátima Carrillo, María Teresa Cáceres, Pablo Mir, María José Lama Suarez, Laura Vargas-González, Maria E. Bosca, Francisco Castera Brugada, Juan Andres Burguera, Anabel Campos, Garcia Carmen Peiró Vilaplana, Peter Berglund, Radu Constantinescu, Gunnel Fredlund, Ulrika Høsterey-Ugander, Petra Linnsand, Liselotte Neleborn-Lingefjärd, Magnus Wentzel, Ghada Loutfi, Carina Olofsson, Eva-Lena Stattin, Laila Westman, Birgitta Wikström, Yanik Stebler, Alain Kaelin, Irene Romero, Michael Schüpbach, Sabine Weber Zaugg, Maria Hauer, Roman Gonzenbach, Hans H. Jung, Violeta Mihaylova, Jens Petersen, Roisin Jack, Kirsty Matheson, Zosia Miedzybrodzka, Daniela Rae, Sheila A Simpson, Fiona Summers, Alexandra Ure, Vivien Vaughan, Shahbana Akhtar, Jenny Crooks, Adrienne Curtis, Jenny de Souza, John Piedad, Hugh Rickards, Jan Wright, Elizabeth Coulthard, Louise Gethin, Beverley Hayward, Kasia Sieradzan, Matthew Armstrong, Roger A. Barker, Deidre O'Keefe, Anna Di Pietro, Kate Fisher, Anna Goodman, Susan Hill, Ann Kershaw, Sarah Mason, Nicole Paterson, Lucy Raymond, Rachel Swain, Natalie Valle Guzman, Monica Busse, Cynthia Butcher, Catherine Clenaghan, Sarah Hunt, Una Jones, Hanan Khalil, Michael Owen, Kathleen Price, Anne Rosser, Maureen Edwards, Carrie Ho, Teresa Hughes, Marie McGill, Pauline Pearson, Mary Porteous, Paul Smith, Peter Brockie, Jillian Foster, Nicola Johns, Sue McKenzie, Jean Rothery, Gareth Thomas, Shona Yates, Liz Burrows, Carol Chu, Amy Fletcher, Deena Gallantrae, Stephanie Hamer, Alison Harding, Stefan Klöppel, Alison Kraus, Fiona Laver, Monica Lewis, Mandy Longthorpe, Ivana Markova, Ashok Raman, Nicola Robertson, Mark Silva, Aileen Thomson, Sue Wild, Pam Yardumian, Carole Evans, Deena Gallentrae, Emma Hobson, Stuart Jamieson, Hannah Musgrave, Liz Rowett, Jean Toscano, Colin Bourne, Jackie Clapton, Carole Clayton, Heather Dipple, Dawn Freire-Patino, Janet Grant, Diana Gross, Caroline Hallam, Julia Middleton, Ann Murch, Catherine Thompson, Sundus Alusi, Rhys Davies, Kevin Foy, Emily Gerrans, Louise Pate, Thomasin Andrews, Andrew Dougherty, Charlotte Golding, Fred Kavalier, Hana Laing, Alison Lashwood, Dene Robertson, Deborah Ruddy, Alastair Santhouse, Anna Whaite, Stefania Bruno, Karen Doherty, Salman Haider, Davina Hensman, Nayana Lahiri, Marianne Novak, Aakta Patel, Elisabeth Rosser, Rachel Taylor, Thomas Warner, Edward Wild, Natalie Arran, Judith Bek, David Craufurd, Marianne Hare, Liz Howard, Susan Huson, Liz Johnson, Mary Jones, Helen Murphy, Emma Oughton, Lucy Partington-Jones, Dawn Rogers, Andrea Sollom, Julie Snowden, Cheryl Stopford, Jennifer Thompson, Iris Trender-Gerhard, Nichola Verstraelen, Leann Westmoreland, Richard Armstrong, Kathryn Dixon, Andrea H Nemeth, Gill Siuda, Ruth Valentine, David Harrison, Max Hughes, Andrew Parkinson, Beverley Soltysiak, Oliver Bandmann, Alyson Bradbury, Paul Gill, Helen Fairtlough, Kay Fillingham, Isabella Foustanos, Mbombe Kazoka, Kirsty O'Donovan, Cat Taylor, Katherine Tidswell, Oliver Quarrell, Puay Ngoh Lau, Emmanul Pica, Louis Tan

المساهمون: Univ Angers, Okina, Moss, Davina J. Hensman, Tabrizi, Sarah J, Mead, Simon, Kitty, Lo, Pardiã±as, Antonio F, Holmans, Peter, Jones, Lesley, Langbehn, Dougla, Coleman, A., Santos, R. Dar, Decolongon, J., Sturrock, A., Bardinet, E., Ret, C. Jauff, Justo, D., Lehericy, S., Marelli, C., Nigaud, K., Valabrãgue, R., van den Bogaard, S. J. A., Dumas, E. M., van der Grond, J., T'Hart, E. P., Jurgens, C., Witjes-Ane, M. -. N., Arran, N., Callaghan, J., Stopford, C., Frost, C., Jones, R., Hobbs, N., Lahiri, N., Ordidge, R., Owen, G., Pepple, T., Read, J., Say, M., Wild, E., Patel, A., Fox, N. C., Gibbard, C., Malone, I., Crawford, H., Whitehead, D., Keenan, S., Cash, D. M., Berna, C., Bechtel, N., Bohlen, S., Man, A. Hoff, Kraus, P., Axelson, E., Wang, C., Acharya, T., Lee, S., Monaco, W., Campbell, C., Queller, S., Whitlock, K., Campbell, M., Frajman, E., Milchman, C., O'Regan, A., Labuschagne, I., Stout, J., Landwehrmeyer, B., Craufurd, D., Scahill, R., Hicks, S., Kennard, C., Johnson, H., Tobin, A., Rosas, H. D., Reilmann, R., Borowsky, B., Pourchot, C., Andrews, S. C., Bachoud-Lévi, Anne-Catherine, Bentivoglio, Anna Rita, Biunno, Ida, Bonelli, Raphael, Burgunder, Jean-Marc, Dunnett, Stephen, Ferreira, Joaquim, Handley, Olivia, Heiberg, Arvid, Illmann, Torsten, Landwehrmeyer, G. Bernhard, Levey, Jamie, Ramos-Arroyo, Maria A., Nielsen, Jã¸rgen, Koivisto, Susana Pro, Pã¤ivã¤rinta, Markku, Roos, Raymund A. C., Sebastiã¡n, A. Rojo, Tabrizi, Sarah, Vandenberghe, Wim, Verellen-Dumoulin, Christine, Uhrova, Tereza, Wahlstrã¶m, Jan, Zaremba, Jacek, Baake, Verena, Barth, Katrin, Garde, Monica Bascuñana, Betz, Sabrina, Bos, Reineke, Callaghan, Jenny, Come, Adrien, Guedes, Leonor Correia, Ecker, Daniel, Finisterra, Ana Maria, Fullam, Ruth, Gilling, Mette, Gustafsson, Lena, Handley, Olivia J, Hvalstedt, Carina, Held, Christine, Koppers, Kerstin, Lamanna, Claudia, Laurã , Matilde, Descals, Asunción Martínez, Martinez-Horta, Saã¼l, Mestre, Tiago, Minster, Sara, Monza, Daniela, Mã¼tze, Lisanne, Oehmen, Martin, Orth, Michael, Padieu, Hã©lãne, Paterski, Laurent, Peppa, Nadia, Di Renzo, Martina, Rialland, Amandine, Rã¸ren, Niini, Å aå¡inkovã¡, Pavla, Timewell, Erika, Townhill, Jenny, Cubillo, Patricia Trigo, da Silva, Wildson Vieira, van Walsem, Marleen R, Whalstedt, Carina, Witjes-Ané, Marie-Noelle, Witkowski, Grzegorz, Wright, Abigail, Zielonka, Daniel, Zielonka, Eugeniusz, Zinzi, Paola, Bonelli, Raphael M., Lilek, Sabine, Hecht, Karen, Herranhof, Brigitte, Holl, Anna, Kapfhammer, Hans-Peter, Koppitz, Michael, Magnet, Marku, Mã¼ller, Nicole, Otti, Daniela, Painold, Annamaria, Reisinger, Karin, Scheibl, Monika, Schã¶ggl, Helmut, Ullah, Jasmin, Braunwarth, Eva-Maria, Brugger, Florian, Buratti, Lisa, Hametner, Eva-Maria, Hepperger, Caroline, Holas, Christiane, Hotter, Anna, Hussl, Anna, Mã¼ller, Christoph, Poewe, Werner, Seppi, Klau, Sprenger, Fabienne, Wenning, Gregor, Boogaerts, Andrea, Calmeyn, Godelinde, Delvaux, Isabelle, Liessens, Dirk, Somers, Nele, Dupuit, Michel, Minet, Cã©cile, van Paemel, Dominique, Ribaã¯, Pascale, van Reijen, Dimphna, Klempã­r, Jirã­, Majerovã¡, Veronika, Roth, Jan, Stã¡rkovã¡, Irena, Hjermind, Lena E., Jacobsen, Oda, Nielsen, Jørgen E., Larsen, Ida Unmack, Vinther-Jensen, Tua, Hiivola, Heli, Hyppã¶nen, Hannele, Martikainen, Kirsti, Tuuha, Katri, Allain, Philippe, Bonneau, Dominique, Bost, Marie, Gohier, Bã©nã©dicte, Guã©rid, Marie-Anne, Olivier, Audrey, Prundean, 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UR UPJV 4559 (LNFP), Université de Picardie Jules Verne (UPJV), CHirurgie, IMagerie et REgénération tissulaire de l’extrémité céphalique - Caractérisation morphologique et fonctionnelle - UR UPJV 7516 (CHIMERE), TRACK-HD investigators, Pardinas, Antonio F, Langbehn, Douglas, Lee, S Hong, TRACK-HD Investigators, REGISTRY Investigators

المصدر: The Lancet Neurology, 16(9), 701-711. Lancet Publishing Group
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The Lancet Neurology, 16(9), 701-711
The Lancet Neurology
The Lancet Neurology, Elsevier, 2017, 16, pp.701-711
Moss, D J H, Tabrizi, S J, Mead, S, Lo, K, Pardiñas, A F, Holmans, P, Jones, L, Langbehn, D, Leavitt, B R, Roos, R, Durr, A, Durr, A, TRACK-HD investigators & REGISTRY investigators† 2017, ' Identification of genetic variants associated with Huntington's disease progression : a genome-wide association study ', The Lancet Neurology, vol. 16, no. 9, pp. 701-711 . https://doi.org/10.1016/S1474-4422Test(17)30161-8
The Lancet Neurology, 2017, 16 (9), pp.701-711. ⟨10.1016/S1474-4422(17)30161-8⟩

مصطلحات موضوعية: 0301 basic medicine, Oncology, Registrie, Genome-wide association study, Longitudinal Studie, Disease, Bioinformatics, Severity of Illness Index, Principal Component Analysi, Longitudinal Studies, Registries, [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, Huntington disease, DNA-Binding Proteins, Settore MED/26 - NEUROLOGIA, Adult, Genome-Wide Association Study, Humans, Huntington Disease, MutS Homolog 3 Protein, Principal Component Analysis, Disease Progression, Neurology (clinical), huntingtin gene, age of onest, Huntington’s disease, Human, medicine.medical_specialty, cag repeat, instability, DNA-Binding Protein, Clinical Neurology, Principal component analysis, Single-nucleotide polymorphism, Biology, 03 medical and health sciences, Huntington's disease, Internal medicine, medicine, SNP, genome-wide association study, medicine.disease, R1, meta-analysis, Minor allele frequency, 030104 developmental biology, Age of onset, Trinucleotide repeat expansion, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology

الوصف: Background Huntington's disease is caused by a CAG repeat expansion in the huntingtin gene, HTT. Age at onset has been used as a quantitative phenotype in genetic analysis looking for Huntington's disease modifiers, but is hard to define and not always available. Therefore, we aimed to generate a novel measure of disease progression and to identify genetic markers associated with this progression measure. Methods We generated a progression score on the basis of principal component analysis of prospectively acquired longitudinal changes in motor, cognitive, and imaging measures in the 218 indivduals in the TRACK-HD cohort of Huntington's disease gene mutation carriers (data collected 2008–11). We generated a parallel progression score using data from 1773 previously genotyped participants from the European Huntington's Disease Network REGISTRY study of Huntington's disease mutation carriers (data collected 2003–13). We did a genome-wide association analyses in terms of progression for 216 TRACK-HD participants and 1773 REGISTRY participants, then a meta-analysis of these results was undertaken. Findings Longitudinal motor, cognitive, and imaging scores were correlated with each other in TRACK-HD participants, justifying use of a single, cross-domain measure of disease progression in both studies. The TRACK-HD and REGISTRY progression measures were correlated with each other (r=0·674), and with age at onset (TRACK-HD, r=0·315; REGISTRY, r=0·234). The meta-analysis of progression in TRACK-HD and REGISTRY gave a genome-wide significant signal (p=1·12 × 10−10) on chromosome 5 spanning three genes: MSH3, DHFR, and MTRNR2L2. The genes in this locus were associated with progression in TRACK-HD (MSH3 p=2·94 × 10−8 DHFR p=8·37 × 10−7 MTRNR2L2 p=2·15 × 10−9) and to a lesser extent in REGISTRY (MSH3 p=9·36 × 10−4 DHFR p=8·45 × 10−4 MTRNR2L2 p=1·20 × 10−3). The lead single nucleotide polymorphism (SNP) in TRACK-HD (rs557874766) was genome-wide significant in the meta-analysis (p=1·58 × 10−8), and encodes an aminoacid change (Pro67Ala) in MSH3. In TRACK-HD, each copy of the minor allele at this SNP was associated with a 0·4 units per year (95% CI 0·16–0·66) reduction in the rate of change of the Unified Huntington's Disease Rating Scale (UHDRS) Total Motor Score, and a reduction of 0·12 units per year (95% CI 0·06–0·18) in the rate of change of UHDRS Total Functional Capacity score. These associations remained significant after adjusting for age of onset. Interpretation The multidomain progression measure in TRACK-HD was associated with a functional variant that was genome-wide significant in our meta-analysis. The association in only 216 participants implies that the progression measure is a sensitive reflection of disease burden, that the effect size at this locus is large, or both. Knockout of Msh3 reduces somatic expansion in Huntington's disease mouse models, suggesting this mechanism as an area for future therapeutic investigation. Funding The European Commission FP7 NeurOmics project; CHDI Foundation; the Medical Research Council UK; the Brain Research Trust; and the Guarantors of Brain.

وصف الملف: STAMPA; application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::649d80c652ead3234e77420ec26ef647Test
https://doi.org/10.1016/s1474-4422Test(17)30161-8

المؤلفون: Michael Schüpbach, Alain Kaelin-Lang, Joan P. Michelis, Claudio Pollo, Jean-Marc Burgunder, Ines Debove, Joachim K. Krauss, Markus Florian Oertel, Martin Lenard Lachenmayer, Katrin Petermann, Corrado Bernasconi, Julia Muellner, C. Bettschen

المساهمون: University of Zurich, Lachenmayer, M L

مصطلحات موضوعية: 0301 basic medicine, Male, Activities of daily living, Parkinson's disease, medicine.medical_treatment, Stimulation, 2717 Geriatrics and Gerontology, Cohort Studies, 0302 clinical medicine, GPi, Long, Deep brain stimulation, 610 Medicine & health, Parkinson Disease, Middle Aged, Globus pallidus, Treatment Outcome, 2728 Neurology (clinical), Neurology, Cohort, Female, Neurosurgery, medicine.medical_specialty, Follow, Clinical Neurology, Globus Pallidus, Time, 03 medical and health sciences, 10180 Clinic for Neurosurgery, Physical medicine and rehabilitation, Rating scale, medicine, Humans, Aged, up, business.industry, medicine.disease, nervous system diseases, 030104 developmental biology, 2808 Neurology, Physical therapy, Neurology (clinical), Geriatrics and Gerontology, business, term, 030217 neurology & neurosurgery, Follow-Up Studies

الوصف: Background Pallidal deep brain stimulation (DBS) has shown to be beneficial in patients with advanced levodopa-responsive Parkinson's disease (PD) in several short-term studies. However, reported long-term outcomes of pallidal DBS for PD are limited and contradictory. Methods Eighteen consecutive PD patients were treated with unilateral or bilateral stimulation of the internal part of the globus pallidus (GPi). Assessments were carried out before and six months after neurosurgery, and annually thereafter for up to 16 years (mean follow-up time: 6 years). Primary outcomes included motor signs (Unified PD Rating Scale [UPDRS]-III), activities of daily living (ADL, UPDRS-II), and levodopa-induced motor complications (UPDRS-IV). Results The results show that GPi stimulation improves levodopa-responsive PD motor signs (UPDRS-III), levodopa-induced motor complications (UPDRS-IV), and ADL (UPDRS-II) in advanced PD. Among motor signs, tremor showed the best response to pallidal stimulation. Levodopa-induced motor complications and tremor showed improvements for more than 10 years after neurosurgery. Conclusions The overall findings in our cohort demonstrate that pallidal stimulation is effective in reducing parkinsonian motor signs (UPDRS-III), particularly in the ‘off’-medication state. Although the beneficial effects on bradykinesia, rigidity and ADL may be limited to 5–6 years, the follow up results indicate that the improvements of levodopa-induced motor complications (UPDRS-IV) and tremor can be sustained for more than 10 years.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c43c8035149678be81ad9a6830bf2db6Test
https://www.zora.uzh.ch/id/eprint/174388Test/

المؤلفون: Zhi-Jun Liu, Hong-Rong Cheng, Yi Dong, Yan-Bin Zhang, Xiao-Yan Li, Shi-Rui Gan, Hong-Lei Li, Wang Ni, Zhi-Ying Wu, X. William Yang, Jean-Marc Burgunder

المصدر: Aging and Disease
Li, Hong-Lei; Li, Xiao-Yan; Dong, Yi; Zhang, Yan-Bin; Cheng, Hong-Rong; Gan, Shi-Rui; Liu, Zhi-Jun; Ni, Wang; Burgunder, Jean-Marc; Yang, X William; Wu, Zhi-Ying (2019). Clinical and Genetic Profiles in Chinese Patients with Huntington's Disease: A Ten-year Multicenter Study in China. Aging and disease, 10(5), pp. 1003-1011. Aging and Disease 10.14336/AD.2018.0911 <http://dx.doi.org/10.14336/AD.2018.0911Test>

مصطلحات موضوعية: 0301 basic medicine, medicine.medical_specialty, phenotype, Offspring, genotype, 610 Medicine & health, Disease, Exponential regression, Orginal Article, Pathology and Forensic Medicine, 03 medical and health sciences, 0302 clinical medicine, Huntingtin Gene, Huntington's disease, Internal medicine, Genotype, medicine, business.industry, Cell Biology, medicine.disease, 030104 developmental biology, Multicenter study, Cohort, Neurology (clinical), Chinese population, Geriatrics and Gerontology, business, 030217 neurology & neurosurgery, Huntington’s disease

الوصف: Huntington's disease (HD) is an autosomal dominant inherited neurodegenerative disorder caused by CAG triplet repeats expansion in exon 1 of the Huntingtin gene (HTT). In China, HD is considered to have a low prevalence. The goal of this study was to describe the clinical characteristic and genetic profiles of HD in a Chinese cohort. A total of 322 individuals with expanded CAG repeats were consecutively recruited from the neurologic clinics of three medical centers in Southeastern China between 2008 and 2018. Among them, 80 were pre-symptomatic mutation carriers and 242 were symptomatic patients. The mean age at onset (AAO), defined here as the age at motor symptom onset, of the 242 manifest HD individuals was 40.3 ± 11.9 years and the mean CAG repeat length was 46.1 ± 7.5 in the group of symptomatic patients. Initial symptoms were abnormal movements in 88.8% of the patients with psychiatric symptoms in 6.2%, cognitive impairment in 3.3% and others in 1.7%. The AAO of motor was negatively correlated with the CAG repeat length in an exponential regression analysis (R 2 = 0.74, P

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2a9a8f05a96c592a043c22b4f49ce6eTest

المؤلفون: Yongping Chen, Ke Chen, Jean-Marc Burgunder, Qianqian Wei, Jing Yang, Bei Cao, Huifang Shang

المصدر: Neurological Research. 38:916-920

مصطلحات موضوعية: Adult, Male, 0301 basic medicine, China, congenital, hereditary, and neonatal diseases and abnormalities, medicine.medical_specialty, Statistics as Topic, Disease, 030105 genetics & heredity, Irritability, Neuropsychiatry, Severity of Illness Index, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Trinucleotide Repeats, Huntington's disease, Rating scale, Internal medicine, Prevalence, medicine, Humans, Apathy, Psychiatry, Retrospective Studies, Psychiatric Status Rating Scales, Huntingtin Protein, Mood Disorders, General Medicine, Middle Aged, medicine.disease, Huntington Disease, Neurology, Anxiety, Female, Neurology (clinical), Age of onset, medicine.symptom, Cognition Disorders, Psychology, 030217 neurology & neurosurgery

الوصف: Huntington's disease (HD) is a neurodegenerative disease caused by the expansion of unstable CAG repeats in the HTT gene. There are scarce data about HD in China. Fifty-eight HD patients were consecutively recruited and assessed using the Unified HD Rating Scale (UHDRS) motor section and UHDRS behaviour assessment (UHDRS-b). Genetic analyses were also conducted. Thirty-three women and Twenty -five men were diagnosed with a mean age of 46.1 ± 11.2 years and a mean number of CAG triplet repeats 44.6 ± 4.4. CAG triplet repeat number was negatively correlated with age at onset, and positively correlated with UHDRS-b total score, and its subdomains including depressed mood, low self-esteem, anxiety and irritability. On the other hand, negative correlations were identified between age at onset and UHDRS-b total score, and its subdomains include low self-esteem, anxiety, suicidal thought, irritability and apathy. Disease durations were correlated with UHDRS motor scores and anxiety domain of UHDRS-b. This is the largest series of Chinese HD patients with demographic, clinical and genetic data confirms the demographic features of Chinese HD patients are comparable to those in other ethnic backgrounds. CAG triplet repeat number may also predict the severity of behaviour problems in HD patients besides its predication for age of onset.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72ff3cb438c946fb28c367f3d25035a4Test
https://doi.org/10.1080/01616412.2016.1214555Test

المؤلفون: Huifang Shang, Qiyong Gong, Chunyan Luo, Jing Yang, Jean-Marc Burgunder, Ke Chen, Wanglin Liu

المصدر: Parkinsonism & Related Disorders. 27:41-46

مصطلحات موضوعية: Adult, Male, 0301 basic medicine, Precuneus, behavioral disciplines and activities, Angular gyrus, 03 medical and health sciences, 0302 clinical medicine, Huntington's disease, Inferior temporal gyrus, mental disorders, medicine, Brief Psychiatric Rating Scale, Humans, Verbal fluency test, Resting state fMRI, Amplitude of low frequency fluctuations, Middle Aged, medicine.disease, Magnetic Resonance Imaging, Huntington Disease, 030104 developmental biology, medicine.anatomical_structure, Neurology, Female, Neurology (clinical), Geriatrics and Gerontology, Cognition Disorders, Psychology, human activities, Neuroscience, 030217 neurology & neurosurgery, Stroop effect

الوصف: Background Huntington's Disease (HD) is characterized by motor, cognitive and psychiatric dysfunction. Functional MRI (fMRI) provides new insight into the pathologic mechanism underlying the cognitive symptoms. Previous fMRI studies of HD focused on functional synchronization of various brain areas by measuring functional connectivity, a method that is unable to identify regional intrinsic neural activity changes in the brain. To fill in this gap, we utilized amplitude of low frequency fluctuations (ALFF). Objective To investigate alterations in regional brain activity and their association with clinical characteristics in the early stages of HD. Methods Ten early stage HD patients and 20 age- and sex-matched healthy controls were scanned to obtain imaging data. HD patients were assessed with the Unified Huntington's Disease Rating Scale, Mini-Mental State Exam (MMSE), Stroop test, Symbol Digit Modalities Test (SDMT), Verbal Fluency Test and Beck Depression Index. Results Gray matter volume (GMV) reduction was detected in bilateral striatum and left calcarine cortex in the HD group. After correcting for GMV, HD patients demonstrated significantly decreased ALFF in the right precuneus and angular gyrus, and increased ALFF in bilateral inferior temporal gyrus (ITG) and left superior frontal gyrus. Increased mean values of ALFF in the left ITG were correlated with worse performance in SDMT, and decreased mean values of ALFF in the precuneus were correlated with worse performance in the Stroop test and SDMT. Conclusions Our results suggest that intrinsic brain activity alterations in the precuneus and cortico-striatal circuit may be the mechanism underlying impaired cognition in early HD.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4c993756f5a888f76fdee70571e6a45Test
https://doi.org/10.1016/j.parkreldis.2016.04.017Test

المؤلفون: Soh Guat Ong, Amit Satpathy, Wei Cheng, Jean-Marc Burgunder, Walter Hunziker, Ee Sin Ng, Jing Tian

المصدر: Multimedia Systems. 22:713-723

مصطلحات موضوعية: 0301 basic medicine, biology, Computer Networks and Communications, business.industry, Computer science, Feature extraction, Kinematics, Muscle disorder, biology.organism_classification, Frame rate, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Discriminative model, Hardware and Architecture, Analytics, Media Technology, Trajectory, Computer vision, Artificial intelligence, business, Zebrafish, 030217 neurology & neurosurgery, Software, Information Systems

الوصف: Zebrafish is a useful animal model for studying human diseases such as muscle disorders. However, manual monitoring of fish motion is time-consuming and prone to subjective variations. In this paper, an automatic fish motion analytics framework is proposed. The proposed framework could be exploited to help validate zebrafish models of transgenic zebrafish that express human genes carrying mutations which lead to muscle disorders, thus affecting their ability to swim normally. To differentiate between wild-type (normal) and transgenic zebrafish, the proposed framework consists of two approaches to exploit discriminative spatial---temporal kinematic features which are extracted to represent zebrafish movements. First, the proposed approach studies precise quantitative measurements of motor movement abnormalities using a camera with the capability to record videos with high frames rates (up to 1,000 frames per second). This differs from previous works, which only tracked each fish as a single point over time. Second, the proposed approach studies multi-view spatial---temporal swimming trajectories. This differs from previous works which typically only considered single-view analysis of fish swimming trajectories. The proposed motion features are then incorporated into a supervised classification approach to identify abnormal fish movements. Experimental results have shown that the proposed approach is capable of differentiating between wild-type and transgenic zebrafish, thus helping to validate the zebrafish models.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::220a6a07c8799a9fe2e24e9fb648fa49Test
https://doi.org/10.1007/s00530-014-0441-6Test

المؤلفون: Jean-Marc Burgunder, Claus Kiefer, Roland Wiest

المصدر: Wiest, Roland; Burgunder, Jean-Marc; Kiefer, Claus (2017). Model-Based Magnetization Transfer Imaging Markers to Characterize Patients and Asymptomatic Gene Carriers in Huntington's Disease. Frontiers in neurology, 8(465), p. 465. Frontiers Media S.A. 10.3389/fneur.2017.00465 <http://dx.doi.org/10.3389/fneur.2017.00465Test>
Frontiers in Neurology
Frontiers in Neurology, Vol 8 (2017)

مصطلحات موضوعية: 0301 basic medicine, Oncology, Pathology, medicine.medical_specialty, Caudate nucleus, 610 Medicine & health, Disease, Neuroprotection, Asymptomatic, lcsh:RC346-429, 03 medical and health sciences, 0302 clinical medicine, Huntington's disease, Neuroimaging, Internal medicine, medicine, magnetization transfer imaging, Magnetization transfer, pre-Huntington’s disease gene carriers, Disease burden, lcsh:Neurology. Diseases of the nervous system, Original Research, business.industry, caudate nucleus, medicine.disease, 030104 developmental biology, Neurology, classification, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery, Neuroscience, Huntington’s disease

الوصف: BACKGROUND AND PURPOSE Huntington's disease (HD) is a chronic progressive neurodegenerative disorder with a long presymptomatic period that opens a window for potential therapies aimed at neuroprotection. Neuroimaging offers the potential to monitor disease-related progression of the disease burden (DB) using model-based magnetization transfer imaging. MATERIALS AND METHODS We have conducted a cross-sectional study to stratify healthy age-matched controls, premanifest and symptomatic HD patients (n = 30) according to their macromolecular depositions in the caudate nucleus. We employed a binary spin-bath magnetization transfer (MT) method for a quantitative description of macromolecule deposits and interactions with their adjacent environment. RESULTS A region-of-interest based fuzzy clustering analysis identified representative clusters for several stages of the disease course related to its progression: one cluster represented subjects with a high DB 230 and healthy controls. Three further clusters represented transition zones between both DB levels (230-268) consisting of presymptomatic carriers with DB values increasing with decreasing distance from the cluster that indicated low DB and healthy age-matched controls. CONCLUSION The proposed binary spin-bath MT method offers the potential to monitor DB and progression in HD. The method may augment qualitative MT techniques since it depicts tissue changes related to interactions between macromolecules and protons in disease specific brain regions that follow the neurodegenerative process.

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الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::744964c3907f82a52f7310696a226baaTest
https://boris.unibe.ch/105631/1/fneur-08-00465.pdfTest