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Limb girdle muscular dystrophy

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https://www.readbyqxmd.com/read/28634560/atypical-lipomatous-tumor-well-differentiated-liposarcoma-developed-in-a-patient-with-progressive-muscular-dystrophy-a-case-report-and-review-of-the-literature
#1
Ryo Miyagi, Toshihiko Nishisho, Shinjiro Takata, Yoshimitsu Shimatani, Shunichi Toki, Koichi Sairyo
BACKGROUND: Atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDLS) is an intermediate or locally aggressive form of adipocytic soft tissue sarcoma. Muscular dystrophy (MD) is characterized by progressive muscle atrophy and its replacement by adipose and fibrous tissue. Recently, some authors have reported that MD genes are related to neoplastic formation, but there have been no detailed clinical reports of ALT associated with MD. CASE PRESENTATION: A 73-year-old woman with a diagnosis of limb-girdle MD visited our department for recurrence of a huge tumor in her left thigh...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28615910/molecular-diagnosis-of-limb-girdle-muscular-dystrophy-type-2a-by-next-generation-sequencing
#2
Clara Gómez-González, Maria Isabel Esteban-Rodríguez, Yolanda Ruano, Elena Vallespín, Pablo Lapunzina, Paloma Martínez, Samuel I Pascual, Jesús Molano, Carmen Prior
No abstract text is available yet for this article.
April 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28615891/limb-girdle-muscular-dystrophies-in-india-a-review
#3
REVIEW
Satish V Khadilkar, Hinaben Dayalal Faldu, Sarika Bapuso Patil, Rakesh Singh
Limb-girdle muscular dystrophies (LGMDs) are common in India. Information on LGMDs has been gradually evolving in the recent years. This information is scattered in case series and case studies. The aim of this study is to collate available Indian information on LGMDs and put it in perspective. PubMed search using keywords such as limb-girdle muscular dystrophies in India, sarcoglycanopathies, dysferlinopathy, calpainopathy, and GNE myopathy was carried out. The published information on LGMDs in Indian context suggests that dysferlinopathy, calpainopathy, sarcoglycanopathies, and other myopathies such as GNE myopathy are frequently seen in India...
April 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28602176/calpainopathy-with-macrophage-rich-regional-inflammatory-infiltrates
#4
Peter W Schutz, Renata S Scalco, Rita Barresi, Henry Houlden, Matthew Parton, Janice L Holton
Mutations in calpain-3 cause limb girdle muscular dystrophy 2A. Biopsy pathology is typically dystrophic, sometimes characterized by frequent lobulated fibres. More recently calpain mutations have been shown in association with eosinophilic myositis, suggesting that calpain mutations may render muscle susceptible to inflammatory change. We present the case of a 33-year old female with mild proximal muscle weakness and high CK levels (6698 IU/L at presentation). Muscle biopsy showed clusters of fibre necrosis associated with very dense macrophage infiltrates and small numbers of lymphocytes, raising the possibility of an inflammatory myopathy...
April 27, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28593034/nanospan-an-alternatively-spliced-isoform-of-sarcospan-localizes-to-the-sarcoplasmic-reticulum-in-skeletal-muscle-and-is-absent-in-limb-girdle-muscular-dystrophy-2f
#5
Angela K Peter, Gaynor Miller, Joana Capote, Marino DiFranco, Alhondra Solares-Pérez, Emily L Wang, Jim Heighway, Ramón M Coral-Vázquez, Julio Vergara, Rachelle H Crosbie-Watson
BACKGROUND: Sarcospan (SSPN) is a transmembrane protein that interacts with the sarcoglycans (SGs) to form a tight subcomplex within the dystrophin-glycoprotein complex that spans the sarcolemma and interacts with laminin in the extracellular matrix. Overexpression of SSPN ameliorates Duchenne muscular dystrophy in murine models. METHODS: Standard cloning approaches were used to identify nanospan, and nanospan-specific polyclonal antibodies were generated and validated...
2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28587652/nanospan-an-alternatively-spliced-isoform-of-sarcospan-localizes-to-the-sarcoplasmic-reticulum-in-skeletal-muscle-and-is-absent-in-limb-girdle-muscular-dystrophy-2f
#6
Angela K Peter, Gaynor Miller, Joana Capote, Marino DiFranco, Alhondra Solares-Pérez, Emily L Wang, Jim Heighway, Ramón M Coral-Vázquez, Julio Vergara, Rachelle H Crosbie-Watson
BACKGROUND: Sarcospan (SSPN) is a transmembrane protein that interacts with the sarcoglycans (SGs) to form a tight subcomplex within the dystrophin-glycoprotein complex that spans the sarcolemma and interacts with laminin in the extracellular matrix. Overexpression of SSPN ameliorates Duchenne muscular dystrophy in murine models. METHODS: Standard cloning approaches were used to identify nanospan, and nanospan-specific polyclonal antibodies were generated and validated...
June 6, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28502335/limb-girdle-muscular-dystrophy-2b-and-miyoshi-presentations-of-dysferlinopathy
#7
REVIEW
Nirupa J Patel, Kenneth W Van Dyke, Luis R Espinoza
We report the following 2 subtypes of progressive limb-girdle dystrophy type 2B: limb-girdle muscular dystrophy type 2B (LGMD2B) and Miyoshi. The first patient described had weakness in the anterior thigh muscles (LGMD2B) and the second patient had calf muscle weakness and atrophy (Miyoshi). Literature review was performed and LGMD2B was compared and distinguished from other myopathies of similar nature. Genetic testing with polymerase chain reaction analysis of the DYSF gene confirmed the diagnosis in both patients...
May 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28487742/serum-cytokine-profile-in-a-patient-diagnosed-with-dysferlinopathy
#8
Svetlana F Khaiboullina, Ekaterina V Martynova, Sergey N Bardakov, Mikhail O Mavlikeev, Ivan A Yakovlev, Arthur A Isaev, Roman V Deev, Albert A Rizvanov
Limb-girdle muscular dystrophy type 2 (LGMD2B) is a mild form of dysferlinopathy, characterized by limb weakness and wasting. It is an autosomal recessive disease, with currently 140 mutations in the LGMD2B gene identified. Lack of functional dysferlin inhibits muscle fiber regeneration in voluntary muscles, the main pathological finding in LGMD2B patients. However, the immune system has been suggested to contribute to muscle cell death and tissue regeneration. Serum levels of 27 cytokines were evaluated in a dysferlinopathy patient...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28480792/a-rare-presentation-of-meralgia-paraesthetica-in-limb-girdle-muscular-dystrophy
#9
Ozgur Zeliha Karaahmet, Eda Gurcay, Duygu Ozturk, Sukran Guzel, Aytul Cakci
A 44-year-old female with paraesthesia and pain on the left anterolateral thigh who had been diagnosed with limb-girdle muscular dystrophy by electromyography and muscle biopsy is presented. Neurological examination revealed atrophy of the proximal muscles of both shoulders, plus pseudo hypertrophy of both calves. Electromyography exhibited a myopathic pattern. Musculoskeletal ultrasound imaging demonstrated a fusiform nerve swelling below the inguinal ligament suggesting lateral femoral cutaneous nerve compression, consistent with meralgia paraesthetica...
January 1, 2017: Scottish Medical Journal
https://www.readbyqxmd.com/read/28480302/efficacy-of-gene-therapy-is-dependent-on-disease-progression-in-dystrophic-mice-with-mutations-in-the-fkrp-gene
#10
Charles Harvey Vannoy, Will Xiao, Peijuan Lu, Xiao Xiao, Qi Long Lu
Loss-of-function mutations in the Fukutin-related protein (FKRP) gene cause limb-girdle muscular dystrophy type 2I (LGMD2I) and other forms of congenital muscular dystrophy-dystroglycanopathy that are associated with glycosylation defects in the α-dystroglycan (α-DG) protein. Systemic administration of a single dose of recombinant adeno-associated virus serotype 9 (AAV9) vector expressing human FKRP to a mouse model of LGMD2I at various stages of disease progression was evaluated. The results demonstrate rescue of functional glycosylation of α-DG and muscle function, along with improvements in muscle structure at all disease stages versus age-matched untreated cohorts...
June 16, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28479227/limb-girdle-muscular-dystrophy-type-2i-no-correlation-between-clinical-severity-histopathology-and-glycosylated-%C3%AE-dystroglycan-levels-in-patients-homozygous-for-common-fkrp-mutation
#11
Maisoon Alhamidi, Vigdis Brox, Eva Stensland, Merete Liset, Sigurd Lindal, Øivind Nilssen
Limb girdle muscular dystrophy type 2I (LGMD2I) is a progressive disorder caused by mutations in the FuKutin-Related Protein gene (FKRP). LGMD2I displays clinical heterogeneity with onset of severe symptoms in early childhood to mild calf and thigh hypertrophy in the second or third decade. Patients homozygous for the common FKRP mutation c.826C>A (p.Leu276Ile) show phenotypes within the milder end of the clinical spectrum. However, this group also manifests substantial clinical variability. FKRP deficiency causes hypoglycosylation of α-dystroglycan; a component of the dystrophin associated glycoprotein complex...
July 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28478914/late-onset-limb-girdle-muscular-dystrophy-caused-by-gmppb-mutations
#12
Hasan Balcin, Johanna Palmio, Sini Penttilä, Inger Nennesmo, Mikaela Lindfors, Göran Solders, Bjarne Udd
Mutations in GMPPB gene have been reported in patients with early-onset disease ranging from severe congenital muscular dystrophies to limb-girdle muscular dystrophy (LGMD) with mental retardation. More recently mutations in GMPPB have been identified with congenital myasthenic syndromes as well as milder phenotypes. We report two unrelated cases with LGMD that underwent clinical, histopathological and genetic studies. In both cases, we found identical compound heterozygous GMPPB mutations c.79G>C p.D27H and c...
July 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28456886/mutations-in-gmppb-presenting-with-pseudometabolic-myopathy
#13
Chiara Panicucci, Chiara Fiorillo, Francesca Moro, Guja Astrea, Giacomo Brisca, Federica Trucco, Marina Pedemonte, Paola Lanteri, Lucia Sciarretta, Carlo Minetti, Filippo M Santorelli, Claudio Bruno
Mutations in the guanosine diphosphate mannose (GDP-mannose) pyrophosphorylase B (GMPPB) gene encoding a key enzyme of the glycosylation pathway have been described in families with congenital (CMD) and limb girdle (LGMD) muscular dystrophy with reduced alpha-dystroglycan (α-DG) at muscle biopsy.Patients typically display a combined phenotype of muscular dystrophy, brain malformations, and generalized epilepsy. However, a wide spectrum of clinical severity has been described ranging from classical CMD presentation to children with mild, yet progressive LGMD with or without intellectual disability...
April 30, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28447722/novel-compound-heterozygous-plec-mutations-lead-to-early%C3%A2-onset-limb%C3%A2-girdle-muscular-dystrophy-2q
#14
Jingzi Zhong, Gang Chen, Yiwu Dang, Haixia Liao, Jiapeng Zhang, Dan Lan
Limb-girdle muscular dystrophy 2Q (LGMD2Q) is a specific mutation in the plectin (PLEC1) gene at chromosome 8q24.3. In the present study, targeted sequencing using a muscle disease gene panel was performed in a patient with muscular dystrophy. The family members were confirmed by Sanger sequencing. The PolyPhen‑2, SIFT and MutationTaster tools were used to predicted the possible effect of the mutations. Immunocytochemistry was used to visualize and localize the plectin protein within the gastrocnemius. Novel compound heterozygous mutations c...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28433973/a-limb-girdle-muscular-dystrophy-responsive-to-asthma-therapy
#15
Eoin Mulroy, Roula Ghaoui, David Hutchinson, Miriam Rodrigues, Monkol Lek, Daniel G MacArthur, Sandra T Cooper, Nigel F Clarke, Richard Roxburgh
No abstract text is available yet for this article.
April 22, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28433477/novel-mutations-in-the-c-terminal-region-of-gmppb-causing-limb-girdle-muscular-dystrophy-overlapping-with-congenital-myasthenic-syndrome
#16
Sushan Luo, Shuang Cai, Susan Maxwell, Dongyue Yue, Wenhua Zhu, Kai Qiao, Zhen Zhu, Lei Zhou, Jianying Xi, Jiahong Lu, David Beeson, Chongbo Zhao
Mutations in the GMPPB gene may underlie both limb girdle muscular dystrophy (LGMD) and congenital myasthenic syndrome (CMS). Forty-one cases have been reported to date and hotspot mutations are emerging in the Caucasian population. Clinical and pathological features of 5 patients with compound heterozygous GMPPB mutations were collected and retrospectively reviewed. In vitro functional analysis was performed to investigate the pathogeneity of GMPPB variants. The patients presented with proximal limb weakness in their first to second decades...
March 10, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28427100/dystrophinopathies-and-limb-girdle-muscular-dystrophies
#17
Joana Domingos, Anna Sarkozy, Mariacristina Scoto, Francesco Muntoni
Muscular dystrophies are a heterogeneous group of inherited diseases. The natural history of these disorders along with their management have changed mainly due to a better understanding of their pathophysiology, the evolution of standards of care, and new treatment options. Dystrophinopathies include both Duchenne's and Becker's muscular dystrophies, but in reality they are a spectrum of muscle diseases caused by mutations in the gene that encodes the protein dystrophin. Duchenne's muscular dystrophy is the most common form of inherited muscle disease of childhood...
April 20, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28403181/mutational-spectrum-of-chinese-lgmd-patients-by-targeted-next-generation-sequencing
#18
Meng Yu, Yiming Zheng, Suqin Jin, Qiang Gang, Qingqing Wang, Peng Yu, He Lv, Wei Zhang, Yun Yuan, Zhaoxia Wang
This study aimed to study the diagnostic value of targeted next-generation sequencing (NGS) in limb-girdle muscular dystrophies (LGMDs), and investigate the mutational spectrum of Chinese LGMD patients. We performed targeted NGS covering 420 genes in 180 patients who were consecutively suspected of LGMDs and underwent muscle biopsies from January 2013 to May 2015. The association between genotype and myopathological profiles was analyzed in the genetically confirmed LGMD patients. With targeted NGS, one or more rare variants were detected in 138 patients, of whom 113 had causative mutations, 10 sporadic patients had one pathogenic heterozygous mutation related to a recessive pattern of LGMDs, and 15 had variants of uncertain significance...
2017: PloS One
https://www.readbyqxmd.com/read/28361653/hand-function-in-muscular-dystrophies
#19
Mariana C Artilheiro, Cristina Dos Santos Cardoso de Sá, Francis M Fávero, Hanna C Wutzki, Maria Bernadete Dutra de Resende, Fátima A Caromano, Mariana C Voos
The aim of this study was to investigate the relationship between Performance of Upper Limb (PUL) and Jebsen-Taylor Test (JTT) to assess and monitor upper limb function progression in patients with muscular dystrophy. Thirty patients diagnosed with Duchenne muscular dystrophy, limb-girdle muscular dystrophy, Becker muscular dystrophy, myotonic dystrophy Type 1, and fascioscapulohumeral dystrophy were submitted to the shoulder, elbow, and wrist domains of PUL, and to JTT subtests. Spearman tests investigated the relationships between PUL and JTT total scores and domains...
April 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28344439/family-context-in-muscular-dystrophies-psychosocial-aspects-and-social-integration
#20
Lorenza Magliano, Luisa Politano
Muscular dystrophies (MDs) are degenerative diseases which may led to marked functional impairment and reduced life expectancy. Being caregivers of a loved one with MD may be both a rewarding and a demanding experience that may have relevant impact on the quality of life of the whole family. In this short review we summarize the main findings of the first survey on family context in MD in Italy. The study was carried out on 502 key-relatives of patients suffering from Duchenne, Becker, or Limb-Girdle MD, aged between 4 and 25 years, and attending one of 8 participating Centers, all over 2012...
October 2016: Acta Myologica: Myopathies and Cardiomyopathies: Official Journal of the Mediterranean Society of Myology
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