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Journal of Neuromuscular Diseases

Stöllberger Claudia, Josef Finsterer
No abstract text is available yet for this article.
2018: Journal of Neuromuscular Diseases
Maaike van Putten, Annemieke Aartsma-Rus, Miranda D Grounds, Joe N Kornegay, Anna Mayhew, Thomas H Gillingwater, Shin'ichi Takeda, Markus A Rüegg, Annamaria De Luca, Kanneboyina Nagaraju, Raffaella Willmann
A workshop took place in 2015 to follow up TREAT-NMD activities dedicated to improving quality in the preclinical phase of drug development for neuromuscular diseases. In particular, this workshop adressed necessary future steps regarding common standard experimental protocols and the issue of improving the translatability of preclinical efficacy studies.
2018: Journal of Neuromuscular Diseases
Payam Mohassel, Andrew L Mammen
Anti-HMGCR myopathy was first recognized and characterized in patients with a history of statin exposure and immune-mediated necrotizing myopathy. After the discovery of anti-HMGCR autoantibodies, several international groups identified and characterized more patients, expanding the phenotypic spectrum of this disease to include pediatric patients and young adults without statin exposure and those with a chronic myopathy resembling limb-girdle muscular dystrophy. We provide a summary of clinical findings, pathologic features, muscle imaging, and immunogenetic risk factors of the disease...
2018: Journal of Neuromuscular Diseases
Sudha Bhattacharya, Satish V Khadilkar, Atchayaram Nalini, Aparna Ganapathy, Ashraf U Mannan, Partha P Majumder, Alok Bhattacharya
BACKGROUND: GNE myopathy is an adult onset recessive genetic disorder that affects distal muscles sparing the quadriceps. GNE gene mutations have been identified in GNE myopathy patients all over the world. Homozygosity is a common feature in GNE myopathy patients worldwide. OBJECTIVES: The major objective of this study was to investigate the mutation spectrum of GNE myopathy in India in relation to the population diversity in the country. MATERIALS AND METHODS: We have collated GNE mutation data of Indian GNE myopathy patients from published literature and from recently identified patients...
2018: Journal of Neuromuscular Diseases
Florian Barthélémy, Aurélia Defour, Nicolas Lévy, Martin Krahn, Marc Bartoli
Skeletal muscle undergoes many micro-membrane lesions at physiological state. Based on their sizes and magnitude these lesions are repaired via different complexes on a specific spatio-temporal manner. One of the major repair complex is a dysferlin-dependent mechanism. Accordingly, mutations in the DYSF gene encoding dysferlin results in the development of several muscle pathologies called dysferlinopathies, where abnormalities of the membrane repair process have been characterized in patients and animal models...
2018: Journal of Neuromuscular Diseases
Michael W Lawlor, Susan T Iannaccone, Katherine Mathews, Francesco Muntoni, Sherita Alai-Hansen, Joanne C Odenkirchen, Robin S Feldman
BACKGROUND: A Congenital Muscular Dystrophy (CMD) Working Group (WG) consisting of international experts reviewed common data elements (CDEs) previously developed for other neuromuscular diseases (NMDs) and made recommendations for all types of studies on CMD. OBJECTIVES: To develop a comprehensive set of CDEs, data definitions, case report forms and guidelines for use in CMD clinical research to facilitate interoperability of data collection, as part of the CDE project at the National Institute of Neurological Disorders and Stroke (NINDS)...
2018: Journal of Neuromuscular Diseases
George J Francis, Amy E Cook, Donald W Morrish, K Ming Chan, Hernish J Acharya
Many neuromuscular diseases (NMD) result in muscle weakness, immobility and greater fracture risk. The objective of this study is to determine the fracture risk of adult patients at a multidisciplinary NMD clinic. Fracture risk was calculated using the Fracture Risk Assessment Tool, the presence of osteoporosis was quantified using bone densitometry and contributing co-morbidities were screened through serum markers. Of the 36 patients studied, 47% were found to be of moderate and high fracture risk. Two thirds of these patients had not been previously screened or treated for osteoporosis...
2018: Journal of Neuromuscular Diseases
Abdallah Fayssoil, Anthony Behin, Adam Ogna, Dominique Mompoint, Helge Amthor, Bernard Clair, Pascal Laforet, Arnaud Mansart, Helene Prigent, David Orlikowski, Tanya Stojkovic, Stéphane Vinit, Robert Carlier, Bruno Eymard, Frederic Lofaso, Djillali Annane
Respiratory muscles are classically involved in neuromuscular disorders, leading to a restrictive respiratory pattern. The diaphragm is the main respiratory muscle involved during inspiration. Ultrasound imaging is a noninvasive, radiation-free, accurate and safe technique allowing assessment of diaphragm anatomy and function. The authors review the pathophysiology of diaphragm in neuromuscular disorders, the methodology and indications of diaphragm ultrasound imaging as well as possible pitfalls in the interpretation of results...
2018: Journal of Neuromuscular Diseases
I A Pierry, Jjp Alix, D G Rao, N Hoggard, J Bigley, C J McDermott, I D Wilkinson, P J Shaw, T M Jenkins
No abstract text is available yet for this article.
December 20, 2017: Journal of Neuromuscular Diseases
Ario Mirian, Lawrence Korngut
BACKGROUND: Serological testing is routinely performed in the work up for a diagnosis of Amyotrophic Lateral Sclerosis (ALS) to exclude pathologies with similar clinical phenotypes. OBJECTIVE: To determine the proportion of serological workup that changes the primary diagnosis and/or clinical management for patients presenting with signs of ALS. METHODS: A retrospective chart review was conducted on patients from the Calgary Neuromuscular Intake Clinic in which the neurologist working diagnosis post-assessment is ALS...
December 20, 2017: Journal of Neuromuscular Diseases
Benjamin Gallais
BACKGROUND: Apathy is a common debilitating symptom of myotonic dystrophy type 1 (DM1). The Apathy Evaluation Scale (AES) has been identified as a promising measurement instrument to be used in DM1 but its metrological properties must be further documented. OBJECTIVE: To determine the internal consistency of the Self (AES-S), Informant (AES-I), and Clinician (AES-C) versions of the AES and to assess the test-retest reliability, standard error of measurement, and minimal detectable change of the AES-S and AES-I in a sample of DM1 patients and their related informants...
December 20, 2017: Journal of Neuromuscular Diseases
T Bernard Kinane, Oscar H Mayer, Petra W Duda, Linda P Lowes, Stephanie L Moody, Jerry R Mendell
BACKGROUND: Duchenne muscular dystrophy (DMD) is a rare, degenerative, X-linked genetic disease that results in progressive muscle loss and premature death, most commonly from respiratory or cardiac failure. DMD is primarily caused by whole exon deletions, resulting in a shift of the dystrophin mRNA reading frame that prevents production of functional dystrophin protein. Eteplirsen, a phosphorodiamidate morpholino oligomer (PMO), is designed to skip exon 51, restore the reading frame, and induce production of internally shortened dystrophin in patients with mutations amenable to such treatment...
December 20, 2017: Journal of Neuromuscular Diseases
Soonsang Yoon, Mary Lou Beermann, Bryant Yu, Di Shao, Markus Bachschmid, Jeffrey Boone Miller
BACKGROUND: Mutations in the LAMA2 gene encoding laminin-α2 cause congenital muscular dystrophy Type 1A (MDC1A), a severe recessive disease with no effective treatment. Previous studies have shown that aberrant activation of caspases and cell death through a pathway regulated by BAX and KU70 is a significant contributor to pathogenesis in laminin-α2-deficiency. OBJECTIVES: To identify mechanisms of pathogenesis in MDC1A. METHODS: We used immunocytochemical and molecular studies of human myogenic cells and mouse muscles-comparing laminin-α2-deficient vs...
December 20, 2017: Journal of Neuromuscular Diseases
Nivedita U Jerath, Michael E Shy
INTRODUCTION: Mutations in the gene encoding DNA polymerase gamma (POLG) impair its ability to proofread mitochondrial DNA (mtDNA) during replication [1]. This results in a high frequency of randomly distributed mtDNA mutations and thus a wide range of phenotypes, including seizures, neuropathy, and cerebellar ataxia [1, 2]. We document a phenotype associated with the rare POLG variant c.1370G>A (p.R457Q). METHODS: Over 10 years, we performed electrodiagnostic and neuropsychologic on a patient who presented with a variety of neurologic symptoms...
December 20, 2017: Journal of Neuromuscular Diseases
Erkan Y Osman, Charles W Washington, Madeline E Simon, Dalia Megiddo, Hagar Greif, Christian L Lorson
BACKGROUND: Spinal muscular atrophy (SMA) is a neurodegenerative autosomal recessive disorder characterized by the loss of α-motor neurons. A variety of molecular pathways are being investigated to elevate SMN protein expression in SMA models and in the clinic. One of these approaches involves stabilizing the SMNΔ7 protein by inducing translational read-through. Previous studies have demonstrated that functionality and stability are partially restored to the otherwise unstable SMNΔ7 by the addition of non-specific C-terminal peptide sequences, or by inducing a similar molecular event through the use of read-through inducing compounds such as aminoglycosides...
June 9, 2017: Journal of Neuromuscular Diseases
Maximilien Sochala, Karim Wahbi, Emmanuel Sorbets, Arnaud Lazarus, Henri-Marc Bécane, Tanya Stojkovic, Abdallah Fayssoil, Pascal Laforêt, Anthony Béhin, Marjorie Sroussi, Bruno Eymard, Denis Duboc, Christophe Meune
BACKGROUND: Pacemakers (PM) and implantable cardioverter defibrillators (ICD) may be indicated for sudden death prevention in myotonic dystrophy type 1 (DM1), however the risk of complications after the placement of these devices is unknown. OBJECTIVE: To compare the rate of device-related complications between PM and ICD implantations in patients with DM1. METHODS: Among 914 patients with DM1 included in the DM1 Heart Registry between January 2000 and January 2010, we retrospectively selected 23 patients who were implanted with an ICD and matched them to 46 controls with a PM on age, gender, and year of device placement...
June 6, 2017: Journal of Neuromuscular Diseases
Heidi R Fuller, Hannah K Shorrock, Thomas H Gillingwater, Anna Pigott, Victoria Smith, Richa Kulshrestha, Caroline S Sewry, Tracey A Willis
Although primarily characterised by loss of motor neurons from the anterior horn of spinal cord and muscle atrophy, spinal muscular atrophy (SMA) is now recognised as a multi-systemic disorder. Here, we report two SMA Type II patients with eosinophilic oesophagitis (EoE), a rare, chronic immune/antigen-mediated condition. One patient presented with dysphagia and poor weight gain, and the second patient had symptoms of gastro-oesophageal reflux (GOR) and poor weight gain. In both patients, macroscopic observations during gastroscopy indicated typical signs of EoE, which were verified during histological examination of oesophageal biopsies...
2017: Journal of Neuromuscular Diseases
Umesh A Badrising, Roula Tsonaka, Monika Hiller, Erik H Niks, Teresinha Evangelista, Hanns Lochmüller, Jan Jgm Verschuuren, Annemieke Aartsma-Rus, Pietro Spitali
BACKGROUND: Inclusion body myositis is a late onset inflammatory myopathy lacking reliable serum biomarkers for diagnosis and for disease progression. OBJECTIVE: To identify diagnostic and predictive biomarkers, cytokine profiling is used to assess the potential of cytokines to discriminate between cases and controls and to assess whether treatment with methotrexate can influence biomarkers associated with disease progression. METHODS: The diagnostic and follow-up potential of 48 cytokines was tested using Bioplex-assay and ELISA in sera of healthy individuals, IBM patients and patients with other neuromuscular disorders...
2017: Journal of Neuromuscular Diseases
K Vill, A Blaschek, D Gläser, M Kuhn, T Haack, B Alhaddad, M Wagner, R Kovacs-Nagy, M Tacke, L Gerstl, A S Schroeder, I Borggraefe, C Mueller, B Schlotter-Weigel, B Schoser, M C Walter, W Müller-Felber
BACKGROUND: Early-onset myopathies are a heterogeneous group of neuromuscular diseases with broad clinical, genetic and histopathological overlap. The diagnostic approach has considerably changed since high throughput genetic methods (next generation sequencing, NGS) became available. OBJECTIVE: We present diagnostic subgroups in a single neuromuscular referral center and describe an algorithm for the diagnostic work-up. METHODS: The diagnostic approach of 98 index patients was retrospectively analysed...
2017: Journal of Neuromuscular Diseases
Zaïda Koeks, Catherine L Bladen, David Salgado, Erik van Zwet, Oksana Pogoryelova, Grace McMacken, Soledad Monges, Maria E Foncuberta, Kyriaki Kekou, Konstantina Kosma, Hugh Dawkins, Leanne Lamont, Matthew I Bellgard, Anna J Roy, Teodora Chamova, Velina Guergueltcheva, Sophelia Chan, Lawrence Korngut, Craig Campbell, Yi Dai, Jen Wang, Nina Barišić, Petr Brabec, Jaana Lähdetie, Maggie C Walter, Olivia Schreiber-Katz, Veronika Karcagi, Marta Garami, Agnes Herczegfalvi, Venkatarman Viswanathan, Farhad Bayat, Filippo Buccella, Alessandra Ferlini, En Kimura, Janneke C van den Bergen, Miriam Rodrigues, Richard Roxburgh, Anna Lusakowska, Anna Kostera-Pruszczyk, Rosário Santos, Elena Neagu, Svetlana Artemieva, Vedrana Milic Rasic, Dina Vojinovic, Manuel Posada, Clemens Bloetzer, Andrea Klein, Jordi Díaz-Manera, Eduard Gallardo, A Ayşe Karaduman, Tunca Oznur, Haluk Topaloğlu, Rasha El Sherif, Angela Stringer, Andriy V Shatillo, Ann S Martin, Holly L Peay, Jan Kirschner, Kevin M Flanigan, Volker Straub, Kate Bushby, Christophe Béroud, Jan J Verschuuren, Hanns Lochmüller
BACKGROUND: Recent short-term clinical trials in patients with Duchenne Muscular Dystrophy (DMD) have indicated greater disease variability in terms of progression than expected. In addition, as average life-expectancy increases, reliable data is required on clinical progression in the older DMD population. OBJECTIVE: To determine the effects of corticosteroids on major clinical outcomes of DMD in a large multinational cohort of genetically confirmed DMD patients...
2017: Journal of Neuromuscular Diseases
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