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Dowling J, Shieh P, Kuntz N, Bonnemann C, Muller-Felber W, Lawlor M, Servais L, Smith B, Noursalehi M, Rico S, Prasad S. O.39ASPIRO phase 1/2 gene therapy trial in X-linked motubular myopathy (XLMTM): update on preliminary safety and efficacy findings. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lawal T, Todd J, Witherspoon J, Bonnemann C, Hamilton S, Dowling J, Meilleur K. CONGENITAL MYOPATHIES: GENERAL AND RYR1. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Fan Y, Liu A, Wei C, Yang H, Chang X, Wang S, Yuan Y, Bonnemann C, Wu Q, Wu X, Xiong H. Genetic and clinical findings in a Chinese cohort of patients with collagen VI-related myopathies. Clin Genet 2018; 93:1159-1171. [PMID: 29419890 DOI: 10.1111/cge.13230] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 01/29/2018] [Accepted: 02/05/2018] [Indexed: 12/13/2022]
Abstract
Collagen VI-related myopathy, caused by pathogenic variants in the genes encoding collagen VI, represents a clinical continuum from Ullrich congenital muscular dystrophy (UCMD) to Bethlem myopathy (BM). Clinical data of 60 probands and their family members were collected and muscle biopsies of 26 patients were analyzed. COL6A1, COL6A2 and COL6A3 exons were analyzed by direct sequencing or next generation sequencing (NGS). Sixty patients were characterized by delayed motor milestones, muscle weakness, skin and joint changes with 40 UCMD and 20 BM. Muscle with biopsies revealed dystrophic changes and showed completely deficiency of collagen VI or sarcolemma specific collagen VI deficiency. We identified 62 different pathogenic variants in these 60 patients, with 34 were first reported while 28 were previously known; 72 allelic pathogenic variants in COL6A1 (25/72, 34.7%), COL6A2 (33/72, 45.8%) and COL6A3 (14/72, 19.4%). We also found somatic mosaic variant in the parent of 1 proband by personal genome machine amplicon deep sequencing for mosaicism. Here we provide clinical, histological and genetic evidence of collagen VI-related myopathy in 60 Chinese patients. NGS is a valuable approach for diagnosis and accurate diagnosis provides useful information for genetic counseling of related families.
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Affiliation(s)
- Y Fan
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - A Liu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - C Wei
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - H Yang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - X Chang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - S Wang
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - Y Yuan
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - C Bonnemann
- Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke/NIH, Bethesda, Maryland
| | - Q Wu
- Human Genetics Resources Core Facility, School of Life Sciences, Peking University, Beijing, China
| | - X Wu
- Department of Pediatrics, Peking University First Hospital, Beijing, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing, China
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Dabaj I, Araújo Martins Moreno C, Abath Neto O, Bertini E, Castiglioni C, Brandão Guimarães J, Conti Reed U, Mesrob L, Lechner D, Fiorillo C, Malfati E, Boland A, Deleuze J, Bonnemann C, Laporte J, Romero N, Gomez D, Quijano-Roy S, Carlier R, Zanoteli E. Severe axial muscular involvement in Laing distal myopathy with a thumbprint finding on MRI. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Butterfield R, Dunn D, Hu Y, Bonnemann C, Weiss R. Transcriptome profiling identifies key pathways important in collagen VI related muscular dystrophies including differences between patients with dominant negative vs. null mutations. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Punetha J, Kesari A, Hoffman E, Gos M, Kaminska A, Kostera-Pruszczyk A, Hu Y, Zou Y, Bonnemann C, Jedrzejowska M. A novel COL12A1 variant expands the clinical picture for a collagen XII-related myopathy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zou Y, Donkervoort S, Salo A, Barnes A, Hu Y, Reghan Foley A, Makareeva E, Leach M, Dastgir J, Cohn R, DiNonno W, Leikin S, Marini J, Myllyharju J, Bonnemann C. P4HA1 mutations cause a unique congenital disorder of connective tissue involving tendon, bone, muscle and the eye. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Arveson I, Witherspoon J, Drinkard B, Waite M, Razaqyar M, Tounkara F, Elliott J, Shelton M, Jain M, Bonnemann C, Meilleur K. Antioxidant therapy in RYR1-related myopathies. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Reghan Foley A, Cocanougher B, Flynn L, Yun P, Jain M, Waite M, Vasavada R, de Chastonay S, Donkervoort S, Bonnemann C. MTM1-related myopathy carrier females manifest significant skeletal asymmetries and a spectrum of muscle involvement. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bharucha-Goebel D, Collins J, Hu Y, Reghan Foley A, Donkervoort S, Leach M, Dastgir N, Vuillerot C, Meilleur K, Jain M, Waite M, Jacobson S, Gordish H, Rutkowski A, Hoffman E, Hathout Y, Bonnemann C. Serum biomarker discovery for congenital muscular dystrophies. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Vuillerot C, Rippert P, Kinet V, Renders A, Jain M, Waite M, Glanzman A, Girardot F, Hamroun D, Iwaz J, Quijano-Roy S, Berard C, Poirot I, Bonnemann C. Une Rasch analyse de la mesure de fonction motrice chez les patients atteints de dystrophie musculaire congénitale et myopathie congénitale. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Vuillerot C, Meilleur K, Jain M, Waite M, Wu T, Dastgir J, Donkervoort S, Leach M, Rippert P, Payan C, Iwaz J, Hamroun D, Berard C, Poirot I, Bonnemann C. English cross-cultural translation and validation of the NM-Score: A system for motor function classification in patients with neuromuscular diseases. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Vuillerot C, Rippert P, Berard C, Bonnemann C, Meilleur K, Jain M, Waite M, Payan C, Hamroun D, Poirot I, Ecochard R. P.10.9 A cross sectional validation study of the English version of the NM-Score in patients with neuromuscular diseases. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Santi M, Medne L, Bharucha-Goebel D, Bonnemann C, Dastgir J, Zukosky K, Shieh P, Winder T, Tennekoon G, Finkel R, Dowling J, Monnier N. P.4.9 Variable clinical and histological features in severe congenital RYR1 associated myopathy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Vuillerot C, Rippert P, Jain M, Waite M, Glanzman A, Kinet V, Auh S, Berard C, Payan C, Hamroun D, Poirot I, Ecochard R, Bonnemann C. P.10.10 The Rasch-scaled motor function measure for patients with congenital disorders of muscle. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kesari A, Punetha J, Uapinyoying P, Clarke N, Waddell L, North K, Plotz P, Tesi-Rocha C, Bonnemann C, Grosmann C, Bertorini T, Hoffman E. P.10.21 Next-generation sequencing meets genetic diagnostics: Development of a comprehensive workflow for neuromuscular disorders. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hicks D, Farsani GT, Laval S, Collins J, Martoni E, Shah A, Zou Y, Koch M, Bonnemann C, Lochmuller H, Bushby K, Roberts M, Straub V. O.1 Collagen XII as a new disease gene for Bethlem-like myopathy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Butterfield R, Bonnemann C, Weiss R. G.P.20 Transcriptome profiling identifies key regulators of molecular pathogenesis in collagen VI myopathies. Neuromuscul Disord 2012. [DOI: 10.1016/j.nmd.2012.06.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tesi Rocha C, Kesari A, Punetha J, Bonnemann C, Hoffman E. D.P.1 Next-generation sequencing approach for muscular dystrophy diagnosis: Advantages and pitfalls of new diagnostic technology. Neuromuscul Disord 2012. [DOI: 10.1016/j.nmd.2012.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Perkins K, Meilleur K, Medne L, Devoto M, Tennekoon G, Yum S, Yang M, Finkel R, Johnson J, Gibbs J, Ferguson T, Zou Y, Traynor B, Bonnemann C. P3.48 Exome sequencing with linkage analysis identifies a novel ACTA1 variant in a large family with progressive muscle weakness. Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Altenhöner T, Dorendorf E, Razum O, Hertrich M, Bonnemann C. Dokumentation der ambulanten Morbus-Paget-Behandlung am Beispiel der Region Westfalen-Lippe. Z Rheumatol 2009; 68:566, 568-74. [DOI: 10.1007/s00393-008-0333-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Dima D, Roiser JP, Dietrich DE, Bonnemann C, Lanfermann H, Emrich HM, Dillo W. Understanding why patients with schizophrenia do not perceive the hollow mask illusion using dynamic causal modelling. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71328-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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23
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Zou Y, Schessl J, Bonnemann C. G.P.1.05 siRNA mediated allele specific selective silencing of a dominant negative COL6A3 mutation causing UCMD. Neuromuscul Disord 2008. [DOI: 10.1016/j.nmd.2008.06.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Goldbecker A, Tountopoulou A, Bonnemann C, Wurster U, Brandis A, Weissenborn K. Progressive multifokale Leukenzephalopathie mit spontaner Besserung. Akt Neurol 2007. [DOI: 10.1055/s-2007-987912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Jimenez-Mallebrera C, Maioli MA, Kim J, Brown SC, Feng L, Lampe AK, Bushby K, Hicks D, Flanigan KM, Bonnemann C, Sewry CA, Muntoni F. A comparative analysis of collagen VI production in muscle, skin and fibroblasts from 14 Ullrich congenital muscular dystrophy patients with dominant and recessive COL6A mutations. Neuromuscul Disord 2006; 16:571-82. [PMID: 16935502 DOI: 10.1016/j.nmd.2006.07.015] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Revised: 06/21/2006] [Accepted: 07/03/2006] [Indexed: 11/17/2022]
Abstract
Ullrich congenital muscular dystrophy (UCMD) is caused by recessive and dominant mutations in COL6A genes. We have analysed collagen VI expression in 14 UCMD patients. Sequencing of COL6A genes had identified homozygous and heterozygous mutations in 12 cases. Analysis of collagen VI in fibroblast cultures derived from eight of these patients showed reduced extracellular deposition in all cases and intracellular collagen VI staining in seven cases. This was observed even in cases that showed normal collagen VI labelling in skin biopsies. Collagen VI immunolabelling was reduced in all the available muscle biopsies. When comparisons were possible no correlation was seen between the extent of the reduction in the muscle and fibroblast cultures, the mode of inheritance or the severity of the clinical phenotype. Mutations affecting glycine substitutions in the conserved triple helical domain were common and all resulted in reduced collagen VI. This study expands the spectrum of collagen VI defects and shows that analysis of skin fibroblasts may be a useful technique for the detection of collagen VI abnormalities. In contrast, immunohistochemical analysis of skin biopsies may not always reveal an underlying collagen VI defect.
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Affiliation(s)
- C Jimenez-Mallebrera
- Dubowitz Neuromuscular Centre, Imperial College, Hammersmith Hospital, London, UK.
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Sáenz A, Leturcq F, Cobo AM, Poza JJ, Ferrer X, Otaegui D, Camaño P, Urtasun M, Vílchez J, Gutiérrez-Rivas E, Emparanza J, Merlini L, Paisán C, Goicoechea M, Blázquez L, Eymard B, Lochmuller H, Walter M, Bonnemann C, Figarella-Branger D, Kaplan JC, Urtizberea JA, Martí-Massó JF, López de Munain A. LGMD2A: genotype-phenotype correlations based on a large mutational survey on the calpain 3 gene. ACTA ACUST UNITED AC 2005; 128:732-42. [PMID: 15689361 DOI: 10.1093/brain/awh408] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We present here the clinical, molecular and biochemical findings from 238 limb-girdle muscular dystrophy type 2A (LGMD2A) patients, representing approximately 50% (238 out of 484) of the suspected calpainopathy cases referred for the molecular study of the calpain 3 (CAPN3) gene. The mean age at onset of LGMD2A patients was approximately 14 years, and the first symptoms occurred between 6 and 18 years of age in 71% of patients. The mean age at which the patients became wheelchair bound was 32.2 years, with 84% requiring the use of a wheelchair between the age of 21 and 40 years. There was no correlation between the age at onset and the time at which the patient became wheelchair bound, nor between the sex of the patient and the risk of becoming wheelchair bound. Of the cases where the CAPN3 gene was not affected, approximately 20% were diagnosed as LGMD2I muscular dystrophy, while facioscapulohumeral muscular dystrophy (FSHD) was uncommon in this sample. We identified 105 different mutations in the CAPN3 gene of which 50 have not been described previously. These were distributed throughout the coding region of the gene, although some exons remained free of mutations. The most frequent mutation was 2362AG-->TCATCT (exon 22), which was present in 30.7% of the chromosomes analysed (146 chromosomes). Other recurrent mutations described were N50S, 550DeltaA, G222R, IVS6-1G-->A, A483D, IVS17+1G-->T, 2069-2070DeltaAC, R748Q and R748X, each of which was found in >5 chromosomes. The type of mutation in the CAPN3 gene does not appear to be a risk factor for becoming dependent on a wheelchair at a determined age. However, in the cases with two null mutations, there were significantly fewer patients that were able to walk than in the group of patients with at least one missense mutation. Despite the fact that the results of phenotyping and western blot might be biased due to multiple referral centres, producing a diagnosis on the basis of the classical phenotype is neither sufficiently sensitive (86.7%) nor specific (69.3%), although western blot proved to be even less sensitive (52.5%) yet more specific (87.8%). In this case LGMD2I was a relevant cause of false-positive diagnoses. Considering both the clinical phenotype and the biochemical information together, the probability of correctly diagnosing a calpainopathy is very high (90.8%). However, if one of the analyses is lacking, the probability varies from 78.3 to 73.7% depending on the information available. When both tests are negative, the probability that the sample comes from a patient with LGMD2A was 12.2%.
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Affiliation(s)
- A Sáenz
- Unidad Experimental, Hospital Donostia, San Sebastián, Basque Country, Spain.
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Balci B, Wilichowski E, Haliloğlu G, Talim B, Aurino S, Kremer E, Ebinger F, Senbil N, Anlar B, Kale G, Nigro V, Topaloğlu H, Bonnemann C, Dinçer P. Beta-sarcoglycan gene mutations in Turkey. Acta Myol 2004; 23:154-8. [PMID: 15938573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The term limb-girdle muscular dystrophy (LGMD) refers to a group of muscular dystrophies that, at the outset, affect primarily the muscles of the hip and shoulder girdle. Limb-girdle muscular dystrophy is genetically heterogeneous comprising autosomal dominant (types LGMD 1A-1E) as well as autosomal recessive forms (types LGMD 2A-2J known). A subgroup among the autosomal recessive forms comprises the sarcoglycanopathies (LGMD2C-2F), caused by mutations in the gamma (gamma-SG), alpha (alpha-SG), beta (beta-SG) and delta (delta-SG) sarcoglycan genes, respectively. The sarcoglycans form the sarcoglycan complex, part of the dystrophin-associated glycoproteins. Mutations in the beta-SG gene causes LGMD2E. Disease severity, in this form, varies from mild to severe phenotypes depending on the individual mutation. Homozygous missense mutations in critical locations may result in the total absence of alpha-, beta- and gamma-sarcoglycan from the muscle membrane and a phenotype as severe as null mutations. In the present study, through screening 80 unrelated LGMD2 families, we identified 13 families with LGMD2E. Mutations in the beta-SG gene were identified in 12 patients from nine families. One of these patients carried a previously reported truncating mutation (Q11X), while the other 11 carried novel missense/rameshift mutations (M1L, V89M, I92T, I92S, 739insA), some of which were seen in more than one patient and may, therefore, be more common in the Turkish population.
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Affiliation(s)
- B Balci
- Hacettepe University, Faculty of Medicine, Department of Medical Biology, Turkey
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Mercuri E, Lampe A, Straub V, Yuva Y, Longman C, Wright M, Brown S, Sewry C, Bonnemann C, Kinali M, Brockington M, Hausser I, Hilton Jones D, Voit T, Bushby K, Muntoni F. Congenital muscular dystrophy with short stature, proximal contractures and distal laxity. Neuropediatrics 2004; 35:224-9. [PMID: 15328561 DOI: 10.1055/s-2004-821084] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We report 5 cases (2 familial and 3 sporadic) who share a diagnosis of congenital muscular dystrophy (CMD) in association with short stature, proximal contractures, rigidity of the spine and distal joint laxity as well as early respiratory failure and mild to moderate mental retardation. The expression of collagen VI was confirmed to be normal on muscle biopsies of all 5 patients and in the informative family linkage to any of the three COL6 A loci was excluded. These findings extend the phenotypes within the CMD classification.
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Affiliation(s)
- E Mercuri
- Dubowitz Neuromuscular Centre, Department of Paediatrics, Imperial College, London, UK.
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Beckmann JS, Brown RH, Muntoni F, Urtizberea A, Bonnemann C, Bushby KM. 66th/67th ENMC sponsored international workshop: The limb-girdle muscular dystrophies, 26-28 March 1999, Naarden, The Netherlands. Neuromuscul Disord 1999; 9:436-45. [PMID: 10545051 DOI: 10.1016/s0960-8966(99)00064-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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