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https://www.readbyqxmd.com/read/28195883/long-term-pediatric-ventricular-assist-device-therapy-a-case-report-of-2100-days-of-support
#1
Neha J Purkey, Aileen Lin, Jenna M Murray, Maryalice Gowen, Paul Shuttleworth, Katsuhide Maeda, Christopher S Almond, David N Rosenthal, Sharon Chen
Ventricular assist devices (VADs) have been placed as destination therapy in adults for over twenty years but have only recently been considered an option in a subset of pediatric patients. A 2016 report from the Pediatric Interagency Registry for Mechanical Circulatory Support (PediMACS) revealed only eight pediatric patients implanted as destination therapy. We report the case of an adolescent male with Becker Muscular Dystrophy (BMD) who underwent VAD placement in 2011 as bridge to candidacy. He subsequently decided to remain as destination therapy and so far has accrued over 2100 days on VAD support, the longest duration of pediatric VAD support reported in the literature to date...
February 9, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28187773/perceived-quality-of-life-among-caregivers-of-children-with-a-childhood-onset-dystrophinopathy-a-double-abcx-model-of-caregiver-stressors-and-perceived-resources
#2
Natalia Frishman, Kristin Caspers Conway, Jennifer Andrews, Jacob Oleson, Katherine Mathews, Emma Ciafaloni, Joyce Oleszek, Molly Lamb, Dennis Matthews, Pangaja Paramsothy, Lowell McKirgan, Paul Romitti
BACKGROUND: Duchenne and Becker muscular dystrophies, collectively referred to as dystrophinopathies, are recessive X-linked disorders characterized by progressive muscle weakness and ultimately cardiac and respiratory failure. Immediate family members are often primary caregivers of individuals with a dystrophinopathy. METHODS: We explored the impact of this role by inviting primary caregivers (n = 209) of males diagnosed with childhood-onset dystrophinopathy who were identified by the Muscular Dystrophy Surveillance, Tracking, and Research Network (MD STARnet) to complete a mailed questionnaire measuring perceived social support and stress, spirituality, and family quality of life (FQoL)...
February 10, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28152980/dmdtoolkit-a-tool-for-visualizing-the-mutated-dystrophin-protein-and-predicting-the-clinical-severity-in-dmd
#3
Jiapeng Zhou, Jing Xin, Yayun Niu, Shiwen Wu
BACKGROUND: Dystrophinopathy is one of the most common human monogenic diseases which results in Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD). Mutations in the dystrophin gene are responsible for both DMD and BMD. However, the clinical phenotypes and treatments are quite different in these two muscular dystrophies. Since early diagnosis and treatment results in better clinical outcome in DMD it is essential to establish accurate early diagnosis of DMD to allow efficient management...
February 2, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28116794/genetic-profile-of-brazilian-patients-with-dystrophinopathies
#4
Paula Abreu Ducceschi de Almeida, Marcela Câmara Machado-Costa, Gabrielle Novais Manzoli, Leticia Sauma Ferreira, Maria do Carmo de Souza Rodrigues, Larissa Souza Mario Bueno, Jonas Alex Morales Saute, Filippo Pinto Vairo, Ursula da Silveira Matte, Marina Siebert, Silvia Liliana Cossio, Gabriel S Macedo, Pablo Brea Winckler, Michele Michelin Becker, Lucas Vilas Boas Magalhães, Marcus Vinicius Magno Gonçalves, Carlo Domenico Marrone, Anamarli Nucci, Marcondes C França
Different types of mutations in the DMD gene underlie Duchenne (DMD) and Becker (BMD) muscular dystrophies. Large deletions and duplications are the most frequent causative genetic alterations worldwide, but little is known about DMD/BMD genetic profile in Brazil. Hence, we recruited patients with DMD and BMD from 8 neuromuscular reference centers along the country, and performed a comprehensive molecular investigation that included MLPA and NGS analyses. We evaluated 199 patients from 177 unrelated families: 166 with DMD, 32 with BMD and one 1...
January 24, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28100912/cryptic-splice-activation-but-not-exon-skipping-is-observed-in-minigene-assays-of-dystrophin-c-9361-1g-a-mutation-identified-by-ngs
#5
Emma Tabe Eko Niba, Atsushi Nishida, Van Khanh Tran, Dung Chi Vu, Masaaki Matsumoto, Hiroyuki Awano, Tomoko Lee, Yasuhiro Takeshima, Hisahide Nishio, Masafumi Matsuo
Next-generation sequencing (NGS) discloses nucleotide changes in the genome. Mutations at splicing regulatory elements are expected to cause splicing errors, such as exon skipping, cryptic splice site activation, partial exon loss or intron retention. In dystrophinopathy patients, prediction of splicing outcomes is essential to determine the phenotype: either severe Duchenne or mild Becker muscular dystrophy, based on the reading frame rule. In a Vietnamese patient, NGS identified a c.9361+1G>A mutation in the dystrophin gene and an additional DNA variation of A>G at +117 bases in intron 64...
January 19, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28098058/repair-of-an-inguinoscrotal-hernia-in-a-patient-with-becker-muscular-dystrophy
#6
F Tatulli, A Caraglia, A Delcuratolo, S Cassano, G S Chetta
INTRODUCTION: Inguinal hernia repairs are routinely performed as outpatient procedures in most patients, whereas a few require admission due to clinical or social peculiarities. Muscular dystrophies are inherited disorders characterized by progressive muscle wasting and weakness. In case of surgery there is no definite recommendation for either general or regional anesthesia. CASE REPORT: This contribution regards a 48 y. o. male patient diagnosed with Becker Muscular Dystrophy by muscle biopsy 10 years earlier...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28079318/duchenne-muscular-dystrophy-and-becker-muscular-dystrophy-confirmed-by-multiplex-ligation-dependent-probe-amplification-genotype-phenotype-correlation-in-a-large-cohort
#7
Seena Vengalil, Veeramani Preethish-Kumar, Kiran Polavarapu, Manjunath Mahadevappa, Deepha Sekar, Meera Purushottam, Priya Treesa Thomas, Saraswathi Nashi, Atchayaram Nalini
BACKGROUND AND PURPOSE: Studies of cases of Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) confirmed by multiplex ligation-dependent probe amplification (MLPA) have determined the clinical characteristics, genotype, and relations between the reading frame and phenotype for different countries. This is the first such study from India. METHODS: A retrospective genotype-phenotype analysis of 317 MLPA-confirmed patients with DMD or BMD who visited the neuromuscular clinic of a quaternary referral center in southern India...
January 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/28069416/abnormal-lipid-metabolism-in-skeletal-muscle-tissue-of-patients-with-muscular-dystrophy-in-vitro-high-resolution-nmr-spectroscopy-based-observation-in-early-phase-of-the-disease
#8
Niraj Kumar Srivastava, Ramakant Yadav, Somnath Mukherjee, Lily Pal, Neeraj Sinha
PURPOSE: Qualitative (assignment of lipid components) and quantitative (quantification of lipid components) analysis of lipid components were performed in skeletal muscle tissue of patients with muscular dystrophy in early phase of the disease as compared to control/normal subjects. METHODS: Proton nuclear magnetic resonance (NMR) spectroscopy based experiment was performed on the lipid extract of skeletal muscle tissue of patients with muscular dystrophy in early phase of the disease and normal individuals for the analysis of lipid components [triglycerides, phospholipids, total cholesterol and unsaturated fatty acids (arachidonic, linolenic and linoleic acid)]...
January 7, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28060911/resting-energy-expenditure-in-adults-with-becker-s-muscular-dystrophy
#9
Matthew F Jacques, Paul Orme, Jonathon Smith, Christopher I Morse
PURPOSE: The purpose of this study was: 1) To compare Resting energy expenditure (REE) in adult males with Becker's Muscular Dystrophy (BeMD, n = 21, 39 ±12 years) and healthy controls (CTRL, n = 12, 37 ±12 years) 2) Determine whether other physiological parameters correlate with REE in BeMD, and 3) Compare current prediction methods of REE with measured REE. METHODS: REE was calculated via indirect calorimetry using continuous, expired gas analysis following an overnight fast...
2017: PloS One
https://www.readbyqxmd.com/read/28042944/comparison-of-serum-raav-serotype-specific-antibodies-in-patients-with-duchenne-muscular-dystrophy-becker-muscular-dystrophy-inclusion-body-myositis-or-gne-myopathy
#10
Deborah Zygmunt, Kelly E Crowe, Kevin Flanigan, Paul T Martin
Recombinant Adeno-associated virus (rAAV) is a commonly used gene therapy vector for the delivery of therapeutic transgenes in a variety of human diseases, but pre-existing serum antibodies to viral capsid proteins can greatly inhibit rAAV transduction of tissues. We have assayed serum from patients with Duchenne Muscular Dystrophy (DMD), Becker Muscular Dystrophy (DMD), Inclusion Body Myositis (IBM), and GNE myopathy (GNE). These were compared to serum from otherwise normal human subjects to determine the extent of pre-existing serum antibodies to rAAVrh74, rAAV1, rAAV2, rAAV6, rAAV8 and rAAV9...
January 2, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28027854/exome-sequencing-in-children-of-women-with-skewed-x-inactivation-identifies-atypical-cases-and-complex-phenotypes
#11
Elisa Giorgio, Alessandro Brussino, Elisa Biamino, Elga Fabia Belligni, Alessandro Bruselles, Andrea Ciolfi, Viviana Caputo, Simone Pizzi, Alessandro Calcia, Eleonora Di Gregorio, Simona Cavalieri, Cecilia Mancini, Elisa Pozzi, Marta Ferrero, Evelise Riberi, Iolanda Borelli, Antonio Amoroso, Giovanni Battista Ferrero, Marco Tartaglia, Alfredo Brusco
BACKGROUND: More than 100 X-linked intellectual disability (X-LID) genes have been identified to be involved in 10-15% of intellectual disability (ID). METHOD: To identify novel possible candidates, we selected 18 families with a male proband affected by isolated or syndromic ID. Pedigree and/or clinical presentation suggested an X-LID disorder. After exclusion of known genetic diseases, we identified seven cases whose mother showed a skewed X-inactivation (>80%) that underwent whole exome sequencing (WES, 50X average depth)...
December 19, 2016: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28000226/abnormal-spontaneous-activity-in-primary-myopathic-disorders
#12
Monika Nojszewska, Malgorzata Gawel, Elzbieta Szmidt-Salkowska, Anna Kostera-Pruszczyk, Anna Potulska-Chromik, Anna Lusakowska, Biruta Kierdaszuk, Marta Lipowska, Anna Macias, Damian Gawel, Andrzej Seroka, Anna M Kaminska
INTRODUCTION: Reproducible noninsertional spontaneous activity (SA), with the exception of end-plate activity, is an unequivocal sign of abnormality and is one of the most useful findings on electromyography. METHODS: In this retrospective study we analyzed occurrence and distribution of abnormal SA in 151 patients with genetically confirmed myopathies. RESULTS: Complex repetitive discharges (CRD) occurred more frequently than fibrillation potentials (fibs) and positive sharp waves (PSW) in centronuclear myopathy (CNM) and limb-girdle muscular dystrophy type 2A (LGMD-2A), whereas fib/PSW were observed more often in desminopathy and facioscapulohumeral dystrophy (FSHD)...
December 21, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27984601/-mutation-analysis-of-81-cases-with-duchenne-becker-muscular-dystrophy
#13
Shuang Li, Ying Bai, Zhenhua Zhao, Xiangdong Kong
OBJECTIVE: To perform mutation analysis for 81 unrelated patients with Duchenne/Becker muscular dystrophy (DMD/BMD) from Henan Province. METHODS: Multiplex ligation-dependent probe amplification (MLPA) was used to detect potential deletion/duplications of the DMD gene. Those with single exon deletions were validated with PCR amplification and Sanger sequencing to rule out false positive results. Patients with negative MLPA results were further analyzed with next-generation sequencing (NGS), and the result was validated by Sanger sequencing...
December 10, 2016: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/27979502/digital-pcr-quantification-of-mir-30c-and-mir-181a-as-serum-biomarkers-for-duchenne-muscular-dystrophy
#14
Monica Llano-Diez, Carlos Ignacio Ortez, Judit Armas Gay, Lidia Álvarez-Cabado, Cristina Jou, Julita Medina, Andres Nascimento, Cecilia Jimenez-Mallebrera
Circulating microRNAs (miRs/miRNAs) are being used as non-invasive biomarkers for diagnosis, prognosis and efficiency of clinical trials. However, to exploit their potential it is necessary to improve and standardize their detection. In a previous study, we identified two microRNAs, miR-30c and miR-181a, that appear to be key regulators of muscular dystrophy. We hypothesized that they could represent useful biomarkers of Duchenne and Becker muscular dystrophies (DMD and BMD). The objective of this study was to assess the absolute levels of miR-30c and miR-181a in sera of DMD and BMD patients using digital PCR (a robust technique for precise and direct quantification of small amounts of nucleic acids without standard curves and external references), and investigate the correlation between miR-30c and miR-181a expressions and several clinical parameters...
November 11, 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27974813/comparison-of-the-phenotypes-of-patients-harboring-in-frame-deletions-starting-at-exon-45-in-the-duchenne-muscular-dystrophy-gene-indicates-potential-for-the-development-of-exon-skipping-therapy
#15
Akinori Nakamura, Naoko Shiba, Daigo Miyazaki, Hitomi Nishizawa, Yuji Inaba, Noboru Fueki, Rika Maruyama, Yusuke Echigoya, Toshifumi Yokota
Exon skipping therapy has recently received attention for its ability to convert the phenotype of lethal Duchenne muscular dystrophy (DMD) to a more benign form, Becker muscular dystrophy (BMD), by correcting the open reading frame. This therapy has mainly focused on a hot-spot (exons 45-55) mutation in the DMD gene. Exon skipping of an entire stretch of exons 45-55 is an approach applicable to 46.9% of DMD patients. However, the resulting phenotype is not yet fully understood. Here we examined the clinical profiles of 24 patients with BMD resulting from deletions starting at exon 45...
December 15, 2016: Journal of Human Genetics
https://www.readbyqxmd.com/read/27973386/bone-health-measured-using-quantitative-ultrasonography-in-adult-males-with-muscular-dystrophy
#16
C I Morse, J Smith, A Denny, J Tweedale, N D Searle, K Winwood, G L Onambele-Pearson
OBJECTIVES: To compare muscle and bone health markers in adult males (aged 20-59 yrs) with and without muscular dystrophy (MD). METHODS: Participants included 11 Fascioscapulohumeral (FSH), 11 Becker's (Be), 9 limb girdle (LG), 11 Duchenne (DMD), and 14 non-dystrophic controls (CTRL). Physical activity was assessed using Bone (BPAQ) and disability specific (PASIPD) questionnaires. Bone QUS provided T- and Z scores from the Distal Radius (DR) and Mid-shaft tibia (MST)...
December 14, 2016: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/27955624/a-case-report-becker-muscular-dystrophy-presenting-with-epilepsy-and-dysgnosia-induced-by-duplication-mutation-of-dystrophin-gene
#17
Jing Miao, Jia-Chun Feng, Dan Zhu, Xue-Fan Yu
BACKGROUND: Becker muscular dystrophy (BMD), a genetic disorder of X-linked recessive inheritance, typically presents with gradually progressive muscle weakness. The condition is caused by mutations of Dystrophin gene located at Xp21.2. Epilepsy is an infrequent manifestation of BMD, while cases of BMD with dysgnosia are extremely rare. CASE PRESENTATION: We describe a 9-year-old boy with BMD, who presented with epilepsy and dysgnosia. Serum creatine kinase level was markedly elevated (3665 U/L)...
December 12, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27931703/guidelines-for-the-perianesthesia-care-of-the-duchenne-muscular-dystrophy-becker-muscular-dystrophy-patient
#18
Barbara A Alliod, Rebecca A Ash
More patients suffering with Duchenne muscular dystrophy (DMD) and Becker muscular dystrophy (BMD) are presenting to perianesthesia settings for emergent and nonemergent treatment and care. A group of collaborative health care providers at Rush University Medical Center in Chicago developed a multidisciplinary DMD/BMD Task Force to study this disorder and create a set of guidelines to aid those engaging in the planning, execution of care, and recovery of this unique population in the perianesthesia setting...
December 2016: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/27930565/a-case-report-with-the-peculiar-concomitance-of-2-different-genetic-syndromes
#19
REVIEW
Alberto Lerario, Irene Colombo, Donatella Milani, Lorenzo Peverelli, Luisa Villa, Roberto Del Bo, Monica Sciacco, Giacomo Pietro Comi, Susanna Esposito, Maurizio Moggio
RATIONALE: Down syndrome (DS) is the most common chromosome disorder in live born infants, affecting several body systems, but usually sparing skeletal muscles. We present the case of a child with coexistence of DS and dystrophinopathy. Only 1 similar case has been reported so far. PATIENT CONCERNS: An 8-year-old boy with DS had a history of incidental finding of increased serum creatine kinase levels up to 1775 U/L (normal values 38-174 U/L). He presented no delay in motor development; at the neurological examination, no muscle weakness or fatigability was detected in 2 different evaluations performed over a 6-month period...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27927941/a-population-based-epidemiologic-study-of-adult-neuromuscular-disease-in-the-republic-of-ireland
#20
Stela Lefter, Orla Hardiman, Aisling M Ryan
OBJECTIVE: To estimate the prevalence rates (PRs) of acquired and inherited neuromuscular diseases (NMD) in the adult Irish population, reflecting the burden of these conditions in a single country. METHODS: This population-based study was performed in the Republic of Ireland (RoI), with a PR estimated for December 2013. Multiple case ascertainment sources were utilized. Demographic and clinical information and relevant diagnostic results were registered. RESULTS: A total of 2,641 adults were identified, giving a PR of 62...
December 7, 2016: Neurology
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