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Neuromuscular
Research paper
Biomarkers predict outcome in Charcot-Marie-Tooth disease 1A
  1. Robert Fledrich1,2,
  2. Manoj Mannil1,2,
  3. Andreas Leha3,
  4. Caroline Ehbrecht2,
  5. Alessandra Solari4,
  6. Ana L Pelayo-Negro5,
  7. José Berciano5,
  8. Beate Schlotter-Weigel6,
  9. Tuuli J Schnizer1,
  10. Thomas Prukop1,2,7,
  11. Natalia Garcia-Angarita6,
  12. Dirk Czesnik1,
  13. Jana Haberlová8,
  14. Radim Mazanec8,
  15. Walter Paulus1,
  16. Tim Beissbarth3,
  17. Maggie C Walter6,
  18. CMT- TRIAAL9,
  19. Jean-Yves Hogrel10,
  20. Odile Dubourg10,
  21. Angelo Schenone11,
  22. Jonathan Baets12,13,14,
  23. Peter De Jonghe12,13,14,
  24. Michael E Shy15,
  25. Rita Horvath16,
  26. Davide Pareyson17,
  27. Pavel Seeman8,
  28. Peter Young18,
  29. Michael W Sereda1,2
  1. 1 Department of Clinical Neurophysiology, University Medical Center Göttingen (UMG), Göttingen, Germany
  2. 2 Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Göttingen, Germany
  3. 3 Department of Medical Statistics, University Medical Center Göttingen (UMG), Göttingen, Germany
  4. 4 Unit of Neuroepidemiology, IRCCS Foundation, C. Besta Neurological Institute, Milan, Italy
  5. 5 Service of Neurology, University Hospital “Marqués de Valdecilla (IDIVAL)”, University of Cantabria, and “Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)”, Santander, Spain
  6. 6 Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
  7. 7 Institute of Clinical Pharmacology, University Medical Center Göttingen (UMG), Göttingen, Germany
  8. 8 Department of Child Neurology, Charles University, 2nd Medical School, University Hospital Motol, Prague, Czech Republic
  9. 9 CMT-TRIAAL, Milan, Italy
  10. 10 Institute of Myology, GH Pitié-Salpêtrière, Paris, France
  11. 11 Department of Neurology, Ophthalmology and Genetics, University of Genoa, Genoa, Italy
  12. 12 Center for Molecular Neurology, VIB, Antwerp, Belgium
  13. 13 Institute Born-Bunge, University of Antwerp, Antwerpen, Belgium
  14. 14 Department of Neurology, Antwerp University Hospital, Antwerpen, Belgium
  15. 15 Department of Neurology, Carver College of Medicine, University of Iowa, Iowa, USA
  16. 16 John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine, Newcastle University, UK
  17. 17 Department of Clinical Neurosciences, Unit of Neurological Rare Diseases of Adulthood, IRCCS Foundation, C. Besta Neurological Institute, Milan, Italy
  18. 18 Department of Sleep Medicine and Neuromuscular Diseases, University of Münster, Münster, Germany
  1. Correspondence to Dr Robert Fledrich, Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Hermann-Rein-Str. 3, 37075 Göttingen, Germany; fledrich{at}em.mpg.de and Dr Michael W Sereda, Department of Clinical Neurophysiology University Medical Center Göttingen (UMG)Robert-Koch Str. 40, 37075 Göttingen, Germany; sereda{at}em.mpg.de

Footnotes

  • Contributors RF monitored data collection, supervised sample processing and qPCR analyses, drafted the statistical analysis plan, and wrote and revised the paper. He is guarantor. AL collected and curated all data, drafted the statistical analysis plan, analysed the data, and wrote and revised the paper. He is guarantor. MM implemented the biomarker trial and collected clinical data in Göttingen, Germany, and monitored collection of all clinical data. CE performed qPCR analyses. TB supervised statistical analyses. MM, AS, ALPN, JB, BSW, TJS, TP, NGA, DC, JH, RM, WP, MCW, CMT-TRIAAL, JYH, OD, AS, JB, PDJ, MES, RH, DP, PS, PY and MWS were involved in patient recruitment, patient assessment and skin biopsy sampling. MM, TJS, TP, DC, BSW, NGA, MCW, WP, PY and MWS implemented the study in Germany. AS, AS, DP and CMT-TRIAAL implemented the study in Italy. ALPN and JB implemented the study in Spain. JH, RM and PS implemented the study in the Czech Republic. JYH and OD implemented the study in France. JB and PDJ implemented the study in Belgium. RH implemented the study in the UK. MES implemented the study in the USA. MWS initiated, coordinated and supervised the biomarker study. He is guarantor.

  • Funding MWS was supported by the German Ministry of Education and Research (BMBF, CMT-BIO, FKZ: 01ES0812, CMT-NET, FKZ: 01GM1511C, CMT-NRG, ERA-NET ‘ERARE3’, FKZ: 01GM1605) and by the Association Francaise contre Les Myopathies (AFM, Nr: 15037). MWS holds a DFG Heisenberg Professorship (SE 1944/1-1). TP was supported by the European Leukodystrophie Society (ELA 2014-020I1 to MWS). JH and PS were supported by Ministry of Health of the Czech Republic grant AZV 16-30206A and DRO 00064203. JB and PDJ were supported by the Association Belge contre les Maladies Neuromusculaire (ABMM)-Aide à la Recherche ASBL and the EU FP7/2007-2013 under grant agreement number 2012-305121 (NEUROMICS). JB is also supported by a Senior Clinical Researcher mandate of the Research Fund-Flanders (FWO). DP and CMT-TRIAAL were supported by Telethon-UILDM (GUP04002, GUP05007) and AIFA (Italian Medicines Agency, FARM53APAH) grants in Italy.

  • Competing interests The authors declare no competing interests.

  • Patient consent Obtained.

  • Ethics approval All clinical centres involved obtained prior ethical approval of their local institutional review board and their respective regional ethics committee.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Collaborators The CMT-TRIAAL Group IRCCS Foundation, C. Besta Neurological Institute, Milan: C. Marchesi, E. Salsano, L. Nanetti, C. Marelli, V. Scaioli, C. Ciano, M. Rimoldi, G. Lauria, G. Ferrari, E. Rizzetto, F. Camozzi; Department of Neurology, Ophthalmology and Genetics, University of Genoa, Genoa: A. Schenone, E. Narciso, M. Grandis, M. Monti-Bragadin, L. Nobbio; Department of Neurological, Neuropsychological, Morphological and Motor Sciences, University of Verona, Verona: G.M. Fabrizi, T. Cavallaro, A. Casano, L. Bertolasi, I. Cabrini, K. Corrà, N. Rizzuto; Department of Neurological Sciences, Federico II University of Naples, Naples: L. Santoro, F. Manganelli, C. Pisciotta; Department of Neurology, “Salvatore Maugeri” Foundation, IRCCS, Telese Terme: M. Nolano; Department of Neurosciences, University of Messina, Messina: G. Vita, A. Mazzeo, R. Di Leo, G. Majorana, M. Russo;Magna Graecia University, Neurology Clinic, and Neuroimaging Research Unit, National Research Council, Catanzaro: A. Quattrone, P. Valentino, R. Nisticò, D. Pirritano, A. Lucisano, M. Canino; Institute of Neurology, Department of Neurosciences, Sacro Cuore Catholic University, and Don Gnocchi Foundation, Rome: L. Padua, C. Pazzaglia, G. Granata, M. Foschini.

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    Footnotes

    • Contributors RF monitored data collection, supervised sample processing and qPCR analyses, drafted the statistical analysis plan, and wrote and revised the paper. He is guarantor. AL collected and curated all data, drafted the statistical analysis plan, analysed the data, and wrote and revised the paper. He is guarantor. MM implemented the biomarker trial and collected clinical data in Göttingen, Germany, and monitored collection of all clinical data. CE performed qPCR analyses. TB supervised statistical analyses. MM, AS, ALPN, JB, BSW, TJS, TP, NGA, DC, JH, RM, WP, MCW, CMT-TRIAAL, JYH, OD, AS, JB, PDJ, MES, RH, DP, PS, PY and MWS were involved in patient recruitment, patient assessment and skin biopsy sampling. MM, TJS, TP, DC, BSW, NGA, MCW, WP, PY and MWS implemented the study in Germany. AS, AS, DP and CMT-TRIAAL implemented the study in Italy. ALPN and JB implemented the study in Spain. JH, RM and PS implemented the study in the Czech Republic. JYH and OD implemented the study in France. JB and PDJ implemented the study in Belgium. RH implemented the study in the UK. MES implemented the study in the USA. MWS initiated, coordinated and supervised the biomarker study. He is guarantor.

    • Funding MWS was supported by the German Ministry of Education and Research (BMBF, CMT-BIO, FKZ: 01ES0812, CMT-NET, FKZ: 01GM1511C, CMT-NRG, ERA-NET ‘ERARE3’, FKZ: 01GM1605) and by the Association Francaise contre Les Myopathies (AFM, Nr: 15037). MWS holds a DFG Heisenberg Professorship (SE 1944/1-1). TP was supported by the European Leukodystrophie Society (ELA 2014-020I1 to MWS). JH and PS were supported by Ministry of Health of the Czech Republic grant AZV 16-30206A and DRO 00064203. JB and PDJ were supported by the Association Belge contre les Maladies Neuromusculaire (ABMM)-Aide à la Recherche ASBL and the EU FP7/2007-2013 under grant agreement number 2012-305121 (NEUROMICS). JB is also supported by a Senior Clinical Researcher mandate of the Research Fund-Flanders (FWO). DP and CMT-TRIAAL were supported by Telethon-UILDM (GUP04002, GUP05007) and AIFA (Italian Medicines Agency, FARM53APAH) grants in Italy.

    • Competing interests The authors declare no competing interests.

    • Patient consent Obtained.

    • Ethics approval All clinical centres involved obtained prior ethical approval of their local institutional review board and their respective regional ethics committee.

    • Provenance and peer review Not commissioned; externally peer reviewed.

    • Collaborators The CMT-TRIAAL Group IRCCS Foundation, C. Besta Neurological Institute, Milan: C. Marchesi, E. Salsano, L. Nanetti, C. Marelli, V. Scaioli, C. Ciano, M. Rimoldi, G. Lauria, G. Ferrari, E. Rizzetto, F. Camozzi; Department of Neurology, Ophthalmology and Genetics, University of Genoa, Genoa: A. Schenone, E. Narciso, M. Grandis, M. Monti-Bragadin, L. Nobbio; Department of Neurological, Neuropsychological, Morphological and Motor Sciences, University of Verona, Verona: G.M. Fabrizi, T. Cavallaro, A. Casano, L. Bertolasi, I. Cabrini, K. Corrà, N. Rizzuto; Department of Neurological Sciences, Federico II University of Naples, Naples: L. Santoro, F. Manganelli, C. Pisciotta; Department of Neurology, “Salvatore Maugeri” Foundation, IRCCS, Telese Terme: M. Nolano; Department of Neurosciences, University of Messina, Messina: G. Vita, A. Mazzeo, R. Di Leo, G. Majorana, M. Russo;Magna Graecia University, Neurology Clinic, and Neuroimaging Research Unit, National Research Council, Catanzaro: A. Quattrone, P. Valentino, R. Nisticò, D. Pirritano, A. Lucisano, M. Canino; Institute of Neurology, Department of Neurosciences, Sacro Cuore Catholic University, and Don Gnocchi Foundation, Rome: L. Padua, C. Pazzaglia, G. Granata, M. Foschini.

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