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https://www.readbyqxmd.com/read/29162933/deep-characterization-of-a-common-d4z4-variant-identifies-biallelic-dux4-expression-as-a-modifier-for-disease-penetrance-in-fshd2
#1
Richard Jlf Lemmers, Patrick J van der Vliet, Judit Balog, Jelle J Goeman, Wibowo Arindrarto, Yvonne D Krom, Kirsten R Straasheijm, Rashmie D Debipersad, Gizem Özel, Janet Sowden, Lauren Snider, Karlien Mul, Sabrina Sacconi, Baziel van Engelen, Stephen J Tapscott, Rabi Tawil, Silvère M van der Maarel
Facioscapulohumeral muscular dystrophy is caused by incomplete repression of the transcription factor DUX4 in skeletal muscle as a consequence of D4Z4 macrosatellite repeat contraction in chromosome 4q35 (FSHD1) or variants in genes encoding D4Z4 chromatin repressors (FSHD2). A clinical hallmark of FSHD is variability in onset and progression suggesting the presence of disease modifiers. A well-known cis modifier is the polymorphic DUX4 polyadenylation signal (PAS) that defines FSHD permissive alleles: D4Z4 chromatin relaxation on non-permissive alleles which lack the DUX4-PAS cannot cause disease in the absence of stable DUX4 mRNA...
November 21, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29129380/evaluation-of-activities-of-daily-living-in-patients-with-slowly-progressive-neuromuscular-diseases
#2
Katarzyna Bienias, Joanna Ścibek, Joanna Cegielska, Jan Kochanowski
Slowly progressive neuromuscular diseases include but are not limited to: facioscapulohumeral muscular dystrophy (FSHD) and limb-girdle muscular dystrophy (LGMD), hereditary motor and sensory neuropathy (HMSN) and spinal muscular atrophy type III (SMA3). The purpose of this study is to present an evaluation of basic and complex activities of daily living in patients suffering from these diseases. The study was conducted on a group of 58 Polish patients: 25 patients with HMSN, 19 with LGMD and FSHD and 14 with SMA3...
October 27, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29112784/clinical-and-genetic-features-of-patients-with-facial-sparing-facioscapulohumeral-muscular-dystrophy
#3
J-J He, X-D Lin, F Lin, G-R Xu, L-Q Xu, W Hu, D-N Wang, H-X Lin, M-T Lin, N Wang, Z-Q Wang
BACKGROUND AND PURPOSE: Facial-sparing scapular myopathy (SHD) is the most common atypical form of facioscapulohumeral muscular dystrophy (FSHD), clinically defined as those without apparent facial muscle weakness on neurologic examination. The clinical profiles and genetic features of SHD are limited. METHODS: A cohort of 21 Chinese patients with SHD were confirmed by PFGE-based molecular genetic analysis. The clinical assessments and methylation analysis were noted...
November 7, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29102079/early-onset-facioscapulohumeral-dystrophy-a-systematic-review-using-individual-patient-data
#4
REVIEW
Rianne J M Goselink, Nicol C Voermans, Kees Okkersen, Oebele F Brouwer, George W Padberg, Ana Nikolic, Rossella Tupler, Malgorzata Dorobek, Jean K Mah, Baziel G M van Engelen, Tim H A Schreuder, Corrie E Erasmus
Infantile or early onset is estimated to occur in around 10% of all facioscapulohumeral dystrophy (FSHD) patients. Although small series of early onset FSHD patients have been reported, comprehensive data on the clinical phenotype is missing. We performed a systematic literature search on the clinical features of early onset FSHD comprising a total of 43 articles with individual data on 227 patients. Additional data from four cohorts was provided by the authors. Mean age at reporting was 18.8 years, and 40% of patients were wheelchair-dependent at that age...
September 21, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29093467/nanopore-based-single-molecule-sequencing-of-the-d4z4-array-responsible-for-facioscapulohumeral-muscular-dystrophy
#5
Satomi Mitsuhashi, So Nakagawa, Mahoko Takahashi Ueda, Tadashi Imanishi, Martin C Frith, Hiroaki Mitsuhashi
Subtelomeric macrosatellite repeats are difficult to sequence using conventional sequencing methods owing to the high similarity among repeat units and high GC content. Sequencing these repetitive regions is challenging, even with recent improvements in sequencing technologies. Among these repeats, a haplotype carrying a particular sequence and shortening of the D4Z4 array on human chromosome 4q35 causes one of the most prevalent forms of muscular dystrophy with autosomal-dominant inheritance, facioscapulohumeral muscular dystrophy (FSHD)...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29067654/cardiac-involvement-in-duchenne-muscular-dystrophy-and-related-dystrophinopathies
#6
Sophie I Mavrogeni, George Markousis-Mavrogenis, Antigoni Papavasiliou, George Papadopoulos, Genovefa Kolovou
Dystrophinopathies include Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), X-linked dilated cardiomyopathy (XLCM), and facioscapulohumeral muscular dystrophy (FSHD). DMD/BMD are X-linked recessive disorders, related to the synthesis of dystrophin. Most of DMD after the third decade of their age develop cardiomyopathy that remains silent, due to relative physical inactivity. Cardiac disease in female carriers presents with hypertrophy, arrhythmias or dilated cardiomyopathy, clinically overt by increasing age...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29053898/chronic-pain-has-a-strong-impact-on-quality-of-life-in-facioscapulohumeral-muscular-dystrophy
#7
Germán Morís, Libby Wood, Roberto FernáNdez-Torrón, José Andrés González Coraspe, Chris Turner, David Hilton-Jones, Fiona Norwood, Tracey Willis, Matt Parton, Mark Rogers, Simon Hammans, Mark Roberts, Elizabeth Househam, Maggie Williams, Hanns Lochmüller, Teresinha Evangelista
INTRODUCTION: Earlier small case series and clinical observations reported on chronic pain playing an important role in facioscapulohumeral dystrophy (FSHD). The aim of this study was to determine the characteristics and impact of pain on quality of life (QoL) in patients with FSHD. METHODS: We analyzed patient reported outcome measures collected through the U.K. FSHD Patient Registry. RESULTS: Of 398 patients, 88.6% reported pain at the time of study...
October 20, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29033278/different-profiles-of-upper-limb-function-in-four-types-of-neuromuscular-disorders
#8
Arjen Bergsma, Mariska M H P Janssen, Alexander C H Geurts, Edith H C Cup, Imelda J M de Groot
The aim of this research was to study impairments, activity limitations and participation restrictions due to upper limb involvement in people with four different types of neuromuscular disorders (NMD) - FacioScapuloHumeral Dystrophy (FSHD), Limb-Girdle Muscular Dystrophy (LGMD), Spinal Muscular Atrophy (SMA) and Duchenne Muscular Dystrophy (DMD) - and to investigate whether common or different profiles could be identified. Total of 267 respondents with NMD from the Netherlands answered a set of questionnaires covering upper limb impairments (pain and stiffness), activity limitations and participation restrictions...
September 15, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29030457/adding-quantitative-muscle-mri-to-the-fshd-clinical-trial-toolbox
#9
Karlien Mul, Sanne C C Vincenten, Nicol C Voermans, Richard J L F Lemmers, Patrick J van der Vliet, Silvère M van der Maarel, George W Padberg, Corinne G C Horlings, Baziel G M van Engelen
OBJECTIVE: To add quantitative muscle MRI to the clinical trial toolbox for facioscapulohumeral muscular dystrophy (FSHD) by correlating it to clinical outcome measures in a large cohort of genetically and clinically well-characterized patients with FSHD comprising the entire clinical spectrum. METHODS: Quantitative MRI scans of leg muscles of 140 patients with FSHD1 and FSHD2 were assessed for fatty infiltration and TIRM hyperintensities and were correlated to multiple clinical outcome measures...
October 13, 2017: Neurology
https://www.readbyqxmd.com/read/28967584/telemedicine-for-facio-scapulo-humeral-muscular-dystrophy-a-multidisciplinary-approach-to-improve-quality-of-life-and-reduce-hospitalization-rate
#10
Simona Portaro, Rocco Salvatore Calabrò, Placido Bramanti, Giuseppe Silvestri, Michele Torrisi, Valeria Conti-Nibali, Santina Caliri, Christian Lunetta, Bernardo Alagna, Antonino Naro, Alessia Bramanti
BACKGROUND: Facio-Scapulo-Humeral Muscular Dystrophy (FSHD) is an autosomal dominant inherited disorder characterized by a variable and asymmetric involvement of facial, trunk, upper and lower extremity muscles. Although respiratory weakness is a relatively unknown feature of FSHD, it is not rare. Telemedicine has been used in a variety of health care fields, but only recently, with the advent of sophisticated technology, its interest among health professionals became evident, even in such diseases...
September 21, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28947680/increased-fshd-region-gene1-expression-reduces-in-vitro-cell-migration-invasion-and-angiogenesis-ex-vivo-supported-by-reduced-expression-in-tumors
#11
Ankit Tiwari, Niharika Pattnaik, Archita Mohanty Jaiswal, Manjusha Dixit
Facioscapulohumeral muscular dystrophy (FSHD) region gene 1 (FRG1) is a candidate gene for FSHD. FRG1 regulates various muscle-related functions, but studies have proposed its role in development and angiogenesis also, where it is involved with tumor-associated molecules. Therefore, we decided to look into its role in tumor progression, tumor angiogenesis, and its impact on cellular properties. Cell proliferation, migration, invasion and in vitro angiogenesis assays were performed to decipher the effect of FRG1 on endothelial and epithelial cell functions...
October 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28935672/the-dux4-homeodomains-mediate-inhibition-of-myogenesis-and-are-functionally-exchangeable-with-the-pax7-homeodomain
#12
Darko Bosnakovski, Erik A Toso, Lynn M Hartweck, Alessandro Magli, Heather A Lee, Eliza R Thompson, Abhijit Dandapat, Rita C R Perlingeiro, Michael Kyba
Facioscapulohumeral muscular dystrophy (FSHD) is caused by inappropriate expression of the double homeodomain protein, DUX4. DUX4 has bimodal effects, inhibiting myogenic differentiation and blocking MyoD at low levels of expression, and killing myoblasts at high levels. Pax3 and Pax7, which contain related homeodomains, antagonize the cell death phenotype of DUX4 in C2C12 cells, suggesting some type of competitive interaction. Here, we show that effects on differentiation and MyoD expression require the homeodomains but do not require the C-terminal activation domain of DUX4...
September 21, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28916757/muscle-pathology-from-stochastic-low-level-dux4-expression-in-an-fshd-mouse-model
#13
Darko Bosnakovski, Sunny S K Chan, Olivia O Recht, Lynn M Hartweck, Collin J Gustafson, Laura L Athman, Dawn A Lowe, Michael Kyba
Facioscapulohumeral muscular dystrophy is a slowly progressive but devastating myopathy caused by loss of repression of the transcription factor DUX4; however, DUX4 expression is very low, and protein has not been detected directly in patient biopsies. Efforts to model DUX4 myopathy in mice have foundered either in being too severe, or in lacking muscle phenotypes. Here we show that the endogenous facioscapulohumeral muscular dystrophy-specific DUX4 polyadenylation signal is surprisingly inefficient, and use this finding to develop an facioscapulohumeral muscular dystrophy mouse model with muscle-specific doxycycline-regulated DUX4 expression...
September 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28915324/facioscapulohumeral-muscular-dystrophy
#14
Alec M DeSimone, Anna Pakula, Angela Lek, Charles P Emerson
Facioscapulohumeral Muscular Dystrophy is a common form of muscular dystrophy that presents clinically with progressive weakness of the facial, scapular, and humeral muscles, with later involvement of the trunk and lower extremities. While typically inherited as autosomal dominant, facioscapulohumeral muscular dystrophy (FSHD) has a complex genetic and epigenetic etiology that has only recently been well described. The most prevalent form of the disease, FSHD1, is associated with the contraction of the D4Z4 microsatellite repeat array located on a permissive 4qA chromosome...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28877559/an-instrumented-timed-up-and-go-in-facioscapulohumeral-muscular-dystrophy
#15
Jessie Huisinga, Adam Bruetsch, Ayla McCalley, Melissa Currence, Laura Herbelin, Omar Jawdat, Mamatha Pasnoor, Mazen Dimachkie, Richard Barohn, Jeffrey Statland
INTRODUCTION: Instrumenting timed functional motor tasks may reveal a continuum of motor disability that predicts future motor dysfunction. METHODS: We performed a prospective study of the instrumented timed up and go (iTUG) test in genetically confirmed facioscapulohumeral muscular dystrophy (FSHD) participants utilizing a commercially available system of wireless motion sensors. Patients returned within 2 weeks to determine test-retest reliability. Gait parameters in FSHD participants were compared to a normative data base, FSHD clinical severity score, manual muscle testing, and patient-reported functional disability...
September 6, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28870238/bet-bromodomain-inhibitors-and-agonists-of-the-beta-2-adrenergic-receptor-identified-in-screens-for-compounds-that-inhibit-dux4-expression-in-fshd-muscle-cells
#16
Amy E Campbell, Jonathan Oliva, Matthew P Yates, Jun Wen Zhong, Sean C Shadle, Lauren Snider, Nikita Singh, Shannon Tai, Yosuke Hiramuki, Rabi Tawil, Silvère M van der Maarel, Stephen J Tapscott, Francis M Sverdrup
BACKGROUND: Facioscapulohumeral dystrophy (FSHD) is a progressive muscle disease caused by mutations that lead to epigenetic derepression and inappropriate transcription of the double homeobox 4 (DUX4) gene in skeletal muscle. Drugs that enhance the repression of DUX4 and prevent its expression in skeletal muscle cells therefore represent candidate therapies for FSHD. METHODS: We screened an aggregated chemical library enriched for compounds with epigenetic activities and the Pharmakon 1600 library composed of compounds that have reached clinical testing to identify molecules that decrease DUX4 expression as monitored by the levels of DUX4 target genes in FSHD patient-derived skeletal muscle cell cultures...
September 4, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28841698/long-term-follow-up-of-mri-changes-in-thigh-muscles-of-patients-with-facioscapulohumeral-dystrophy-a-quantitative-study
#17
Farzad Fatehi, Emmanuelle Salort-Campana, Arnaud Le Troter, Emilie Lareau-Trudel, Mark Bydder, Alexandre Fouré, Maxime Guye, David Bendahan, Shahram Attarian
Facioscapulohumeral muscular dystrophy (FSHD) is one of the most common hereditary muscular disorders. Currently FSHD has no known effective treatment and detailed data on the natural history are lacking. Determination of the efficacy of a given therapeutic approach might be difficult in FSHD given the slow and highly variable disease progression. Magnetic resonance imaging (MRI) has been widely used to qualitatively and quantitatively evaluate in vivo the muscle alterations in various neuromuscular disorders...
2017: PloS One
https://www.readbyqxmd.com/read/28764967/ultrasound-imaging-of-muscle-contraction-of-the-tibialis-anterior-in-patients-with-facioscapulohumeral-dystrophy
#18
Kaj Gijsbertse, Rianne Goselink, Saskia Lassche, Maartje Nillesen, André Sprengers, Nico Verdonschot, Nens van Alfen, Chris de Korte
A need exists for biomarkers to diagnose, quantify and longitudinally follow facioscapulohumeral muscular dystrophy (FSHD) and many other neuromuscular disorders. Furthermore, the pathophysiological mechanisms leading to muscle weakness in most neuromuscular disorders are not completely understood. Dynamic ultrasound imaging (B-mode image sequences) in combination with speckle tracking is an easy, applicable and patient-friendly imaging tool to visualize and quantify muscle deformation. This dynamic information provides insight in the pathophysiological mechanisms and may help to distinguish the various stages of diseased muscle in FSHD...
November 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28754837/p53-independent-dux4-pathology-in-cell-and-animal-models-of-facioscapulohumeral-muscular-dystrophy
#19
Darko Bosnakovski, Micah D Gearhart, Erik A Toso, Olivia O Recht, Anja Cucak, Abhinav K Jain, Michelle C Barton, Michael Kyba
Facioscapulohumeral muscular dystrophy (FSHD) is a genetically dominant myopathy caused by mutations that disrupt repression of the normally silent DUX4 gene, which encodes a transcription factor that has been shown to interfere with myogenesis when misexpressed at very low levels in myoblasts and to cause cell death when overexpressed at high levels. A previous report using adeno-associated virus to deliver high levels of DUX4 to mouse skeletal muscle demonstrated severe pathology that was suppressed on a p53-knockout background, implying that DUX4 acted through the p53 pathway...
October 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28744936/molecular-combing-reveals-complex-4q35-rearrangements-in-facioscapulohumeral-dystrophy
#20
Karine Nguyen, Francesca Puppo, Stéphane Roche, Marie-Cécile Gaillard, Charlène Chaix, Arnaud Lagarde, Marjorie Pierret, Catherine Vovan, Sylviane Olschwang, Emmanuelle Salort-Campana, Shahram Attarian, Marc Bartoli, Rafaëlle Bernard, Frédérique Magdinier, Nicolas Levy
Facioscapulohumeral dystrophy (FSHD), one of the most common hereditary neuromuscular disorders, is associated with a complex combination of genetic variations at the subtelomeric 4q35 locus. As molecular diagnosis relying on Southern blot (SB) might be challenging in some cases, molecular combing (MC) was recently developed as an additional technique for FSHD diagnosis and exploration of the genomic organization of the 4q35 and 10q26 regions. In complement to the usual SB, we applied MC in a large cohort of 586 individuals with clinical FSHD...
July 25, 2017: Human Mutation
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